US20150175152A1 - Hybrid vehicle drive system and method and idle reduction system and method - Google Patents
Hybrid vehicle drive system and method and idle reduction system and method Download PDFInfo
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- US20150175152A1 US20150175152A1 US14/640,818 US201514640818A US2015175152A1 US 20150175152 A1 US20150175152 A1 US 20150175152A1 US 201514640818 A US201514640818 A US 201514640818A US 2015175152 A1 US2015175152 A1 US 2015175152A1
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Definitions
- the present disclosure relates to vehicle drive systems. More particularly, the present disclosure relates to hybrid vehicle drive systems employing electric and hydraulic components.
- Hybrid vehicle drive systems commonly employ at least two prime movers arranged in different configurations relative to a transmission.
- One known configuration is found in so-called “series-parallel” hybrids.
- “Series-parallel” hybrids are arranged such that multiple prime movers can power the drive shaft alone or in conjunction with one another.
- a first and second prime mover e.g., an internal combustion engine and an electric motor/generator
- PTO shafts are generally used to drive auxiliary systems, accessories, or other machinery (e.g., pumps, mixers, barrels, winches, blowers, etc.).
- auxiliary systems, accessories, or other machinery e.g., pumps, mixers, barrels, winches, blowers, etc.
- the second prime mover is typically positioned between the first prime mover and the transmission, creating the need to reposition existing drive train components.
- Hybrid systems used in larger trucks, greater than class 4 have typically utilized two basic design configurations—a series design or a parallel design.
- Series design configurations typically use an internal combustion engine (heat engine) or fuel cell with a generator to produce electricity for both the battery pack and the electric motor. There is typically no direct mechanical power connection between the internal combustion engine or fuel cell (hybrid power unit) and the wheels in an electric series design.
- Series design hybrids often have the benefit of having a no-idle system, including an engine-driven generator that enables optimum performance, lacking a transmission (on some models), and accommodating a variety of options for mounting the engine and other components.
- series design hybrids also generally include a larger, heavier battery; have a greater demand on the engine to maintain the battery charge; and include inefficiencies due to the multiple energy conversions.
- Parallel design configurations have a direct mechanical connection between the internal combustion engine or fuel cell (hybrid power unit) and the wheels in addition to an electric or hydraulic motor to drive the wheels.
- Parallel design hybrids have the benefit of being capable of increased power due to simultaneous use of the engine and electric motor, having a smaller engine with improved fuel economy while avoiding compromised acceleration power, and increasing efficiency by having minimal reduction or conversion of power when the internal combustion engine is directly coupled to the driveshaft.
- parallel design hybrids typically lack a no-idle system and may have non-optimal engine operation (e.g., low rpm or high transient loads) under certain circumstances.
- Existing systems on trucks of Class 4 or higher have traditionally not had a system that combines the benefits of a series system and a parallel system.
- a hybrid vehicle drive system that allows for the prevention of friction and wear by disengaging unused components.
- a hybrid vehicle drive system that uses regenerative braking to store energy in at least two rechargeable energy sources.
- a PTO-based hybrid system there is a need for a hybrid system optimized for use with a hydraulic system of the vehicle.
- One embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO.
- the hybrid vehicle drive system further includes a hydraulic motor in direct or indirect mechanical communication with the PTO and an electric motor in direct or indirect mechanical communication with the hydraulic motor.
- the electric motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO.
- the hydraulic motor can receive power from the electric motor which is powered by the rechargeable power source.
- the hybrid vehicle drive system further includes a hydraulic motor in direct or indirect mechanical communication with the PTO and an electric motor in direct or indirect mechanical communication with the hydraulic motor.
- the electric motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO.
- the hydraulic motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO.
- Another embodiment relates to a hybrid vehicle drive system for use with a first prime mover and a first transmission driven by the first prime mover.
- the system includes a second prime mover coupled to a rechargeable energy source, a component, and an accessory configured to be coupled to the second prime mover.
- the first prime mover is configured to provide power through the transmission and the component to operate the second prime mover
- the second prime mover is configured to provide power to the drive shaft through the component.
- the accessory is configured to operate through the operation of the second prime mover.
- the vehicle includes a first prime mover, a first prime mover driven transmission, a second prime mover, a component, and a first rechargeable energy source.
- the first prime mover can provide power to the second prime mover through the transmission and the component.
- the second prime mover can provide power to the vehicle's drive shaft through the component.
- the first rechargeable energy source can power the second prime mover or be recharged by the second prime mover.
- the hydraulic system includes an accessory.
- the accessory can be coupled to the second prime mover in such a way that the accessory is operated through operation of the second prime mover.
- the accessory can also operate the second prime mover.
- the drive system includes a first prime mover, a first prime mover driven transmission, a second prime mover, a first rechargeable energy source, a component, and an accessory.
- the second prime mover can affect the motion of a drive shaft alone or in combination with the first prime mover.
- the first rechargeable energy source can power or be recharged by the second prime mover.
- the component transfers energy between the transmission and the second prime mover in both directions. Operation of the second prime mover powers the accessory, and the accessory can also operate to power the second prime mover.
- a first and second electric motor are coupled to the power source.
- One is indirect and with PM and one is in with PTO, whereby the first E motor can either provide propulsion or generate power and the second E motor can either provide power to the PTO driven transmission or receive power for regeneration breaking, an optional hydraulic motor can be coupled after the second electric.
- Yet another embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO.
- the hybrid vehicle drive system further includes a first electric motor coupled to the power source, a hydraulic motor in direct or indirect mechanical communication with the first electric motor, and a second electric motor in direct or indirect mechanical communication with the PTO.
- the second electric motor can receive power from the prime mover driven transmission through the PTO and charge the power source.
- the hydraulic motor can receive power the first electric motor.
- the second electric motor has a higher horsepower rating than the first electric motor.
- Another exemplary embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO.
- the hybrid vehicle drive system further includes a first electric motor and a second electric motor coupled to the power source.
- the second electric motor is in direct or indirect mechanical communication with the PTO.
- the first electric motor is in direct or indirect communication with the first prime mover.
- the first electric motor can either provide propulsion or generate power and the second electric motor can either provide power to the PTO for the transmission or receive power via regenerated braking.
- An optional hydraulic motor can be coupled to the second electric motor.
- one of the first and second electric motors can operate as a generator while the other of the first and second electric motors operates as a motor.
- FIG. 1 is a general block diagram of a hybrid vehicle drive system according to a first exemplary embodiment.
- FIG. 2 is a general block diagram illustrating a first exemplary operation of the hybrid vehicle drive system illustrated in FIG. 1 .
- FIG. 3 is a general block diagram illustrating a second exemplary operation of the hybrid vehicle drive system illustrated in FIG. 1 .
- FIG. 4 is a general block diagram illustrating a third exemplary operation of the hybrid vehicle drive system illustrated in FIG. 1 .
- FIG. 5 is a general block diagram illustrating a fourth exemplary operation of the hybrid vehicle drive system illustrated in FIG. 1 .
- FIG. 6 is a general block diagram illustrating a fifth exemplary operation of the hybrid vehicle drive system illustrated in FIG. 1 modified to include a clutch in accordance with a second exemplary embodiment.
- FIG. 7 is a general block diagram illustrating a sixth exemplary operation of a hybrid vehicle drive system illustrated in FIG. 1 .
- FIG. 8 is a general block diagram of a of the hybrid vehicle drive system according to a third exemplary embodiment.
- FIG. 9 is a general block diagram of a hybrid vehicle drive system illustrating the use of a second power take-off, a third prime mover, and a second accessory component according to a fourth exemplary embodiment.
- FIG. 10 is a general block diagram of a hybrid vehicle drive system illustrating the use of a second power take-off and a motor according to a fifth exemplary embodiment.
- FIG. 11 is a general block diagram of a hybrid vehicle drive system illustrating the use of a second power take-off, a high horsepower motor, and a capacitor according to a sixth exemplary embodiment.
- FIG. 12 is a general block diagram of a hybrid vehicle drive system illustrating the use of a second accessory component, a high horsepower motor, and a capacitor coupled to the first prime mover according to a seventh exemplary embodiment.
- FIG. 13 is a general block diagram of a hybrid vehicle drive system including an accessory coupled to a power take-off and a second prime mover coupled to the accessory according to an eighth exemplary embodiment.
- FIG. 14 is a general block diagram of a hybrid vehicle drive system including a clutch between the accessory and the power take-off according to a ninth exemplary embodiment.
- FIG. 15 is a general block diagram of a hybrid vehicle drive system that includes a clutch between the first prime mover and the transmission according to a tenth exemplary embodiment.
- FIG. 16 is a general block diagram of a hybrid vehicle drive system including a second prime mover coupled to a PTO and an accessory coupled to a transfer case according to an eleventh exemplary embodiment.
- FIG. 17 is a general block diagram of a fluid coupling for connecting two exemplary elements of a hybrid vehicle drive system according to a twelfth exemplary embodiment.
- FIG. 18 is a general block diagram of a hybrid vehicle drive system that includes a multi-input/output drive coupled to first and second PTOs according to a thirteenth exemplary embodiment.
- FIG. 19 is a general block diagram of a hybrid vehicle drive system that does not include hydraulic drive components and includes electric motors coupled to each of two PTOs coupled to the first prime mover according to a fourteenth exemplary embodiment.
- FIG. 20 is a general block diagram of a hybrid vehicle drive system that includes a smaller electric motor as a third prime mover to power a hydraulic pump according to a fifteenth exemplary embodiment.
- FIG. 21 is a general block diagram of a hybrid vehicle drive system that does not include hydraulic drive components and includes electric motors coupled to each of two PTOs coupled to the first prime mover along with an electric motor coupled to the internal combustion engine to power on-board accessories according to a sixteenth exemplary embodiment.
- FIG. 22 is a general block diagram of a hybrid vehicle drive system illustrated in FIG. 21 in a first exemplary series mode operation.
- FIG. 23 is a general block diagram of a hybrid vehicle drive system illustrated in FIG. 21 in a second series mode of operation.
- FIG. 24 is a general block diagram of a hybrid vehicle drive system illustrated in FIG. 21 in a first exemplary parallel mode of operation.
- FIG. 25 is a general block diagram of a hybrid vehicle drive system illustrated in FIG. 21 in a first exemplary cruising mode
- FIG. 26 is a general block diagram of a hybrid vehicle drive system illustrated in FIG. 21 in a second exemplary cruising mode.
- FIG. 27 is a general block diagram of a hybrid vehicle drive system illustrated in FIG. 21 in an exemplary stationary mode.
- FIG. 28 is a general block diagram of a hybrid vehicle drive system illustrated in FIG. 21 in a first exemplary recharge mode.
- FIG. 29 is a general block diagram of a hybrid vehicle drive system illustrated in FIG. 21 in a second exemplary recharge mode to recharge the energy source.
- FIG. 30 is a high level block diagram showing the relationship between the major hardware elements and the embodiment.
- FIG. 31 is a detailed block diagram of the components and subsystems of the entire vehicle system of the embodiment illustrated in FIG. 30 .
- FIG. 32 is a diagram showing only those blocks used during vehicle acceleration along with arrows indicating power flows for the embodiment illustrated in FIG. 30 .
- FIG. 33 is a diagram showing only those blocks used during vehicle deceleration including arrows to show power flow directions in the embodiment illustrated in FIG. 30 .
- FIG. 34 is a diagram showing the blocks used in the driving mode of “park/neutral” with arrows showing possible power flow paths in the embodiment illustrated in FIG. 30 .
- FIG. 35 is a diagram showing the blocks involved in the support of an all-electric stationary mode also indicating power flow directions via arrows in the embodiment illustrated in FIG. 30 .
- FIG. 36 is a diagram showing the elements involved in supporting an engine powered stationary mode indicating power flow directions in the embodiment illustrated in FIG. 30 .
- FIG. 37 is a diagram showing the blocks and power flows involved in the plug-in charging mode of the PTO Hybrid System in the embodiment illustrated in FIG. 30 .
- Hybrid vehicle drive systems according to many possible embodiments are presented.
- One feature of one exemplary embodiment of the hybrid vehicle drive system is that a drive shaft can be powered singly or in any combination by a first prime mover, a second prime mover, and an accessory.
- Preferred embodiments incorporate hydraulic systems into the hybrid vehicle drive system for optimal energy storage and usage.
- motor refers to a motor/generator or motor/pump and is not limited to a device that performs only motor operations.
- any unneeded drive system components other than a first prime mover can be entirely disconnected from the drive train, reducing inefficiencies and wear in situations where the different portions of the system do not need to interact, such as when a drive shaft is solely driven by the first prime mover, or when a vehicle using the system is stationary and a second prime mover and accessory are not being driven by the first prime mover.
- an optional clutch between the first prime mover and the transmission can be used to reduce inefficiencies during regenerative braking by removing the first prime mover from the system when vehicle braking occurs.
- the accessory e.g., hydraulic pump, pneumatic pump, electric motor, etc.
- the accessory can be powered singly or in any combination by the first prime mover, the second prime mover, energy from braking, or energy stored in a second rechargeable energy source (e.g., battery, ultra capacitor, hydraulic accumulator, etc.).
- a second rechargeable energy source e.g., battery, ultra capacitor, hydraulic accumulator, etc.
- the presence of a second rechargeable energy source also can obviate the need for a complicated pump control system when the accessory is a hydraulic pump.
- the pump is a variable volume displacement pump, further simplification is possible because a clutch may not be needed between the second prime mover and the pump.
- Other types of pumps can also be used.
- the pump can be an inexpensive gear pump.
- a first rechargeable energy source connected to the second prime mover can be recharged in one or more modes. These modes include: the second prime mover using power from the first prime mover; the second prime mover using power from regenerative braking; the accessory, using energy stored in the second rechargeable energy source to operate the second prime mover; an auxiliary power unit connected to the first rechargeable energy source; an engine alternator, when present (the alternator can be increased in capacity to allow for this additional charge while driving or idle); or from an external power source, such as being directly plugged into an external power grid.
- the second prime mover can draw upon this power stored in the first rechargeable power source before daily operation of the vehicle (e.g., after overnight charging), when the vehicle is stopped, or in other situations. In such situations, the second prime mover would operate the accessory to pre-charge or pressurize the second rechargeable energy source before the energy is needed, which would provide higher density power storage when the second rechargeable power source is a hydraulic accumulator, among other advantages.
- a higher density energy storage device is intended to provide more available power at low revolutions per minute (RPM) operation and an overall lower mass system.
- hybrid vehicle drive systems according to various exemplary embodiments and exemplary operations are shown. Various features of these embodiments can be employed in other embodiments described herein.
- a first exemplary embodiment of a hybrid vehicle drive system, system 10 can be employed on any type of vehicle.
- the vehicle can be any type of light, medium, or heavy duty truck.
- the vehicle is a truck that employs hydraulic systems such as a boom truck.
- the vehicle can be any type of platform where hybrid systems are employed.
- the vehicle may have a wide variety of axle configurations including, but not limited to a 4 ⁇ 2, 4 ⁇ 4, or 6 ⁇ 6 configuration.
- the vehicle is a truck such as an International 4300 SBA 4 ⁇ 2 truck.
- the vehicle includes an IHC MaxxforceDT engine with an output of 255 HP and 660 lbs. of torque.
- the vehicle further includes an Allison 3500_RDS_P automatic transmission.
- the vehicle has a front gross axle weight rating (GAWR) of 14,000/12,460 lbs., a rear GAWR of 19,000/12,920 lbs., and a total GAWR of 33,000/25,480.
- the vehicle includes a hydraulic boom.
- the vehicle boom has a working height of approximately 54.3 feet, a horizontal reach of 36.0 feet, an upper boom has an extension of approximately 145 inches.
- the lower boom may travel between approximately 0 degrees and 87 degrees from horizontal.
- the upper boom may have a travel between approximately ⁇ 20 degrees and 76 degrees from horizontal.
- the vehicle may further include a hydraulic platform rotator, a hydraulic articulating jib and winch (e.g., with a capacity of 1000 lbs.), a hydraulic jib extension, hydraulic tool outlets, an on-board power charger providing 5 kW at 240 VAC, and electric air conditioning with a capacity of 5,000 BTU.
- a hydraulic platform rotator e.g., with a capacity of 1000 lbs.
- a hydraulic jib extension e.g., with a capacity of 1000 lbs.
- hydraulic tool outlets e.g., with a capacity of 1000 lbs.
- an on-board power charger providing 5 kW at 240 VAC
- electric air conditioning with a capacity of 5,000 BTU.
- the above referenced power, boom, and types of components are exemplary only.
- System 10 includes a first prime mover 20 (e.g., an internal combustion engine, such as a diesel fueled engine, etc.), a first prime mover driven transmission 30 , a component 40 (e.g., a power take-off (PTO), a transfer case, etc.), a second prime mover 50 (e.g., a motor, such as an electric motor/generator, a hydraulic pump with a thru-shaft, etc.), and an accessory 60 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.). In certain embodiments, accessory 60 can act as a third prime mover as described below.
- Transmission 30 is mechanically coupled to component 40 .
- Component 40 is coupled to second prime mover 50 .
- Second prime mover 50 is coupled to accessory 60 .
- second prime mover 50 is a 50 kW electric motor.
- second prime mover 50 may generate 30 kW continuously or as much as 75 kW at peak times.
- the above referenced power parameters are exemplary only.
- Second prime mover 50 may be further used to power various on-board components such as compressors, water pumps, cement mixer drums, etc.
- accessory 60 is embodied as a hydraulic motor and includes a through shaft coupled to component 40 embodied as a PTO.
- the through shaft is also coupled to the shaft of the mover 50 embodied as an electric motor.
- electric motor includes the through shaft that is coupled to the PTO and the pump.
- system 10 also includes a first rechargeable energy source 70 (e.g., a battery, a bank of batteries, a fuel cell, a capacitive cell, or other energy storage device), an Auxiliary Power Unit (APU) 80 (e.g., an internal combustion engine, possibly fueled by an alternative low emission fuel (e.g., bio-mass, natural gas, hydrogen, or some other fuel with low emissions and low carbon output), and a generator, a fuel cell, etc.), a second rechargeable energy source 90 (e.g. a hydraulic accumulator, ultra capacitor, etc.), and onboard or external equipment 100 (e.g., hydraulically operated equipment, such as an aerial bucket, etc.).
- APU Auxiliary Power Unit
- APU Auxiliary Power Unit
- second rechargeable energy source 90 e.g. a hydraulic accumulator, ultra capacitor, etc.
- onboard or external equipment 100 e.g., hydraulically operated equipment, such as an aerial bucket, etc.
- First rechargeable energy source 70 is coupled to second prime mover 50 and provides power for the operation of second prime mover 50 .
- First rechargeable (e.g., pressurized or rechargeable) energy source 70 may include other auxiliary components (e.g., an inverter provided for an AC motor, a DC-to-DC converter to charge a DC system, an inverter for power exportation to a power grid or other equipment, controllers for motors, a charger, etc.).
- APU 80 is coupled to first rechargeable energy source 70 and provides power to first rechargeable energy source 70 .
- second renewable energy source 90 is a hydraulic system with a high pressure portion (e.g., an accumulator) and a low pressure component (e.g., a reservoir tank).
- Second rechargeable energy source 90 is coupled to accessory 60 and provides stored power for accessory 60 .
- Onboard or external equipment 100 can be coupled to accessory 60 or second rechargeable energy source 90 and operate using power from either accessory 60 or second rechargeable energy source 90 .
- onboard or external equipment 100 is coupled through second rechargeable energy source 90 to accessory 60 .
- APU 80 may also provide power to both second renewable energy source 90 and first rechargeable energy source 70 when high hydraulic loads are required.
- APU 80 and second renewable energy source 90 may both provide power to hydraulically operated equipment 100 .
- component 40 is a PTO designed to engage or disengage while the transmission is moving via a clutch mechanism.
- the PTO can be a street side or curb side PTO.
- Component 40 can be disengaged from transmission 30 when first prime mover 20 exceeds the maximum operating RPM of any component connected through component 40 .
- component 40 can be disengaged if first prime mover 20 exceeds the maximum operating RPM of accessory 60 .
- all components connected through component 40 can operate throughout the RPM range of first prime mover 20 , and component 40 can be engaged continuously.
- component 40 can be disengaged during high speed steady driving conditions to reduce friction and wear on system 10 .
- transmission 30 may be modified to incorporate component 40 and optionally incorporate second prime mover 50 directly into transmission 30 .
- Component 40 embodied as a PTO, may optionally include a PTO shaft extension.
- a PTO shaft extension is described in U.S. Pat. No. 6,263,749 and U.S. Pat. No. 6,499,548 both of which are incorporated herein by reference.
- Component 40 can have a direct connection to transmission 30 .
- Component 40 may interface with transmission 30 in a way that there is a direct coupling between mover 20 , component 40 , and transmission 30 .
- component 40 may interface with transmission 30 in a way that the interface directly couples component 40 to the torque converter of transmission 30 .
- the torque converter may be in mechanical communication with mover 20 , but rotating at a different speed or may rotate at the same speed as mover 20 if it is locked up.
- a clutch mechanism can be employed to properly engage and disengage component 40 .
- component 40 is a PTO that has an internal clutch pack, such as a hot shift PTO.
- a hot shift PTO can be used when frequent engagements of the PTO are required, often with automatic transmissions.
- second prime mover 50 can be operated at the same RPM as first prime mover 20 prior to the engagement of component 40 . This is intended to reduce wear on the clutch mechanism if component 40 has a 1:1 ratio of input speed to output speed. If other ratios for component 40 are used, the RPM of first prime mover 20 or second prime mover 50 can be adjusted accordingly prior to engagement to insure that input and output speed match the ratio of the component to reduce wear on the clutch mechanism.
- second prime mover 50 can operate to provide power to a drive shaft 32 via transmission 30 .
- first prime mover 20 provides power to drive shaft 32 through transmission 30 .
- Second prime mover 50 provides additional or alternative power to drive shaft 32 through component 40 and transmission 30 .
- Drive shaft 32 provides power to two or more wheels 33 used to provide forward and backward momentum to the vehicle.
- second prime mover 50 can optionally provide the sole source of power to drive shaft 32 .
- second prime mover 50 can provide additional power to drive shaft 32 during vehicle acceleration.
- second prime mover 50 can operate using power from first rechargeable energy source 70 .
- first rechargeable energy source 70 can be charged or powered by second prime mover 50 , APU 80 or another suitable source (e.g., the vehicle alternator, the power grid, etc.).
- Optional APU 80 can be used to power first rechargeable energy source 70 when the vehicle is driving up a grade, as well as other situations. This use is intended to improve vehicle performance, particularly when the power requirements of the vehicle exceed the power available from first prime mover 20 , first rechargeable energy source 70 , and second rechargeable energy source 90 .
- the presence of APU 80 is intended to allow for a smaller first prime mover 20 .
- APU 80 is of a type that produces lower emissions than first prime mover 20 .
- APU 80 is intended to enable a vehicle using system 10 to meet various anti-idle and emission regulations.
- system 10 is configured to automatically engage APU 80 or first prime mover 20 through component 40 or accessory 60 to charge first rechargeable energy source 70 when the stored energy decreases to a certain amount.
- the permissible reduction in stored energy can be determined based upon a user selectable switch.
- the switch specifies the method of recharging first rechargeable energy source 70 from an external power grid.
- a user can select between 220-240V recharging, 110-120V recharging, and no external power source available for recharging. For the different voltages, the amount of power that can be replenished over a certain period of time (e.g., when connected to an external power grid overnight) would be calculated. Beyond that amount of power usage, first prime mover 20 , or APU 80 is engaged to charge or provide power to first rechargeable energy source 70 . If no external power source is available, first prime mover 20 or APU 80 can be automatically engaged during regular finite periods, calculated to minimize idle time. In one embodiment, APU 80 and/or optionally first rechargeable energy source 70 can provide power to an external power grid 200 , also known as vehicle to grid (V2G) power sharing. This is intended to provide low-emission power generation and/or reduce requirements to generate additional grid power during peak loads on the grid.
- V2G vehicle to grid
- a user may only select between two settings, one setting to select charging using a grid and the other setting to select charging without using an external power grid.
- the controller would monitor state of charge of the batteries and control recharging differently for each setting. If no external charging from a power grid is selected, system 10 may allow the state of charge of first rechargeable energy source 70 (batteries) to drop to a threshold (as an example 30%), then the controller would cause either first prime mover 20 or the optional APU 80 to be engaged to charge batteries to a predetermined level (as an example 80%) to minimize the frequency that first prime mover 20 or APU 80 must be started. Or different levels of discharge and recharging may be selected to minimize idle time. System 10 may occasionally recharge batteries to 100% of charge to help condition the batteries.
- the controller may allow the state of charge of first renewable energy source to drop to a threshold (as an example 30%), then the controller would cause either first prime mover 20 or optional APU 80 to be engaged to charge batteries to a predetermined level that is lower (as an example 50%).
- the lower level allows the external power grid to recharge a greater amount of first rechargeable energy source 70 when vehicle can be plugged in or charged by the external power grid, reducing the fuel consumption of prime mover 70 or optional APU 80 .
- External power grid 200 allows first rechargeable energy source 70 to be recharged with a cleaner, lower cost power compared to recharging first rechargeable energy source 70 with first prime mover 20 .
- Power from an external power grid may be provided at a fraction of the cost of power provided from an internal combustion engine using diesel fuel.
- first rechargeable energy source 70 can be recharged from an external power grid 200 in approximately 8 hours or less.
- control systems can be utilized to control the various components (clutches, motors, transmissions, etc.) in system 10 .
- Electronic control systems, mechanical control systems, and hydraulic control systems can be utilized.
- a controller can be provided to indicate a request to operate an accessory or other equipment.
- a controller similar to the controller in U.S. Pat. No. 7,104,920 incorporated herein by reference can be utilized.
- the controller is modified to communicate by pneumatics (e.g., air), a wireless channel, or fiber optics (e.g., light) for boom applications and other applications where conductivity of the appliance is an issue.
- the control system can utilize various input criteria to determine and direct the amount of power required or to be stored, the input criteria can input operator brake and acceleration pedals, accessory requirements, storage capacity, torque requirements, hydraulic pressure, vehicle speed, etc.
- a control system may control the torque and power output of second prime mover 50 and accessory 60 so that component 40 , second prime mover 50 and accessory 60 are operated within the allowable torque and power limitations of each item so that the sum of second prime mover 50 and accessory 60 do not exceed component 40 or exceed capacity of transmission 30 , such as capacity of transmission power takeoff drive gear rating or exceed capacity of transmission maximum turbine torque on an automatic transmission.
- the controller may monitor and control additional input torque from the prime mover, or input torque of the prime mover after multiplication by the torque converter, along with that from other prime movers or accessories to ensure that the turbine torque limit is not exceeded or other internal torque ratings of components within an automatic transmission or an autoshift manual transmission, or a manual transmission.
- the torque and power output of second prime mover 50 and accessory 60 may also be controlled using an input from the driver and/or from a power train control system. If two components are used as described in other embodiments, the torque and power output of the second and third prime mover and optional accessory or accessories may be controlled so that the transmission power takeoff drive gear rating with two power takeoffs is not exceeded or that the capacity of transmission maximum turbine torque on an automatic transmission, or other toque rating of an internal component within a transmission of different kind, such as an autoshift manual or manual transmission is not exceeded.
- APU 80 charges or provides power to first rechargeable energy source 70 when necessary.
- APU 80 can include a generator powered by an internal combustion engine. The generator can be connected to first rechargeable energy source 70 through a power converter, AC/DC power inverter or other charging system.
- First rechargeable energy source 70 provides power to second prime mover 50 .
- the operation of second prime mover 50 operates accessory 60 .
- Accessory 60 provides power to on-board or external equipment 100 .
- First rechargeable energy source 70 and/or APU 80 may provide all the power for system 10 when the vehicle is stationary and first prime mover 20 is turned off (e.g., in an idle reduction system). If second prime mover 50 is not coupled to drive shaft 32 and instead provides power to accessory 60 (e.g., in an idle reduction system), system 10 may include a simplified control and power management system.
- mover 20 is not engaged with component 40 when mover 50 is used to power a pump or other mechanically coupled equipment 100 .
- component 40 PTO
- the PTO may be modified to allow shaft 32 to spin with low resistance.
- a PTO can be chosen with a feature that normally limits movement of the PTO when not engaged, this feature can be disabled when the electric motor is used to power the hydraulic pump. This concept also applies to “operating mode” for hybrid system process discussed below with reference to FIGS. 3 and 4 . This type of idle reduction can be used when the vehicle is stationary.
- Batteries e.g., rechargeable energy source 70 provide energy for the electric motor. After the batteries are depleted, an external power grid is used to recharge the batteries.
- the electric motor may operate continuously, eliminating the need for a controller to turn motor on and off based upon demand.
- Such a system may be coupled to a variable volume displacement pump to reduce flow when demand for hydraulic flow is low, resulting in lower consumption of power from the rechargeable energy source. This same method of continuous operation can also be used for hybrid system configurations.
- the batteries may be thermally corrected during charging. Thermal correction may be needed if the temperature of the battery exceeds a certain threshold.
- a cooling system either external to the vehicle or internal to the vehicle may be used, such that coolant is circulated to reduce heat or the battery case can be ventilated with cooler air to dissipate heat, possibly with a powered ventilation system.
- a second pump may also be connected to a PTO (as shown in FIG. 9 ).
- First prime mover 20 may be started and used to recharge by engaging component 40 to transmission and operating second prime mover 50 as a generator to recharge first rechargeable energy source batteries. If there is insufficient energy to operate the electric motor driven hydraulic pump, the vehicle engine is started, PTO engaged and the second pump is used to power the equipment.
- the second pump can be used when the hydraulic power requirements exceed the power output of the electric motor coupled to the hydraulic pump.
- prime mover 50 could directly power the first accessory (hydraulic pump) and the second prime mover could be made not to operate as a generator. Not operating second prime mover as a generator may reduce system complexity and reduce cost.
- second prime mover 50 provides power to external devices directly or through an additional rechargeable energy source and an associated inverter. Utilizing second prime mover 50 to power external devices is intended to lessen the need for an additional first prime mover 20 powered generator.
- a sophisticated control system e.g., a pump control system utilizing fiber optics, etc.
- accessory 60 is a variable volume displacement pump. Accessory 60 can operate continuously, only providing flow if there is a demand. When no demand is present, accessory 60 provides little or no additional friction or resistance within the system.
- second rechargeable energy source 90 and two hydraulic motor/pump units are coupled together to provide constant system pressure and flow.
- the first unit e.g., a hydraulic motor
- receives high pressure flow from second rechargeable energy source 90 The first unit is coupled to a second unit (e.g., a pump) which supplies hydraulic power to equipment 100 at a lower pressure.
- Both hydraulic second rechargeable hydraulic circuit and low pressure hydraulic equipment circuit have a high pressure and a low pressure (reservoir or tank) sections.
- a control system may be utilized to maintain constant flow in the low pressure hydraulic equipment circuit as the high pressure flow from the second rechargeable source (accumulator) reduces or varies. The advantage of this configuration is that the energy from the high pressure accumulator is more efficiently transferred to the equipment.
- This configuration also allows independent hydraulic circuits to be used for the propulsion system and for equipment 100 .
- the independent hydraulic circuits allow for fluids with different characteristics to be used in each circuit.
- a hydraulic circuit that may be susceptible to contamination e.g., the equipment circuit
- can be kept separate from the other hydraulic circuit e.g., the propulsion circuit.
- second rechargeable energy source 90 is utilized, and accessory 60 is a hydraulic pump.
- Second rechargeable energy source 90 can include a low pressure fluid reservoir and a hydraulic accumulator. The utilization of second rechargeable energy source 90 obviates the need for a sophisticated pump control system and the associated fiber optics; instead a simpler hydraulic system can be used (e.g., an insulated aerial device with a closed center hydraulic system and a conventional control system, etc.). If the speed of accessory 60 slows due to depletion of on-board power sources, accessory 60 can operate longer to maintain energy in second rechargeable energy source 90 . This is intended to minimize any negative effects on the operation of equipment 100 .
- second prime mover 50 is an AC motor and turns at generally a constant rate regardless of the output volume of accessory 60 (e.g., to create two or more different levels of flow from accessory 60 ).
- second renewable energy source 90 may be optional and first renewable energy source 70 may directly power to equipment 100 .
- first renewable energy source 70 has a capacity of approximately 35 kWh and is configured to provide enough power to operate the vehicle for a full day or normal operation (e.g., 8 hours).
- first rechargeable energy source 70 can be recharged by other components of system 10 (in addition to other methods).
- First prime mover 20 and second prime mover 50 are preferably operated and synchronized to the same speed (e.g., input and output mechanical communication through component 40 is a one to one ratio).
- Component 40 is preferably engaged to transmission 30 .
- First prime mover 20 provides power to second prime mover 50 through transmission 30 and component 40 .
- Adjustments to second prime mover 50 speed is made if the ratio between first prime mover 20 and second prime mover 50 is not one to one to minimize wear of the clutch in component 40 or to speed of first prime mover 50 .
- Operation of second prime mover 50 recharges first rechargeable energy source 70 to a predetermined level of stored energy.
- This method of recharging first rechargeable energy source 70 is intended to allow continuous system operation in the field without the use of external grid power. This method is further intended to allow continuous operation of equipment 100 during recharging of first rechargeable energy source 70 .
- second prime mover 50 While charging first rechargeable energy source 70 , second prime mover 50 simultaneously operates accessory 60 .
- Accessory 60 provides power to on-board or external equipment 100 .
- component 40 is disengaged from transmission 30 .
- Operation of accessory 60 can continue without the use of first prime mover 20 as shown in FIG. 2 .
- operation of accessory 60 can continue powered in part or in full by prime mover 20 . This may be useful for example, if there is a failure in one of the other components that powers accessory 60 . This may also be useful if the power demand from accessory 60 exceeds the power available from second prime mover 50 .
- first prime mover 20 provides supplementary power to or all of the power to equipment 100 (e.g. a digger derrick that may require higher hydraulic flow during digging operations).
- first prime mover 20 to provide supplementary power to equipment 100 during intermittent periods of high power requirement allows system 10 to include a smaller second prime mover 50 that is able to provide enough power for the majority of the equipment operation.
- the control system may receive a signal from the equipment indicating additional power is required beyond that provided by second prime mover 50 . Such a signal may be triggered by the operator, by activation of a function (e.g., an auger release, etc.), by demand in the circuit or component above a predetermined threshold, or by other means.
- a function e.g., an auger release, etc.
- a second embodiment of the hybrid vehicle drive system, system 610 including a clutch 165 or other mechanism is used to disengage first prime mover 20 from transmission 30 during vehicle braking. This is intended to maximize the regenerative energy available from vehicle braking.
- the forward momentum of the vehicle provides power from wheels 33 to transmission 30 .
- Transmission 30 may be reduced to a lower gear to increase the RPMs and increase the amount of energy transferred to second prime mover 50 .
- Second prime mover 50 can operate to charge first rechargeable energy source 70 and help slow the vehicle according to principles of regenerative braking Disengaging first prime mover 20 from transmission 30 further reduces the amount of energy transferred back to first prime mover 20 during braking and reduces the need for engine braking.
- the control system for the hybrid components may also monitor chassis anti-lock brake system (ABS) activity. If the chassis anti-lock brake system has sensed possible wheel lock-up and has become active, possibly due to low traction or slippery road conditions, then hybrid regenerative braking is suspended by the hybrid control system.
- ABS chassis anti-lock brake system
- the regenerative braking system may be disabled as soon as ABS is active and may remain off for only as long as the ABS is active, or alternatively regenerative braking may remain off for a period of time after ABS is no longer active or regenerative braking may remain off for the remainder of the ignition cycle to eliminate the chance that regenerative braking could adversely affect vehicle handling in low friction, slippery road conditions during the current ignition cycle. At the next ignition cycle, regenerative braking may be reactivated.
- Second rechargeable energy source 90 is utilized. As mentioned above, during vehicle braking, first rechargeable energy source 70 is charged through operation of second prime mover 50 . Accessory 60 can operate to further slow the vehicle, and store energy in second rechargeable energy source 90 , if second rechargeable energy source 90 is not fully charged. In this manner, regenerative braking can be used to simultaneously charge multiple energy storage devices of system 10 . This is intended to allow recharging of both energy storage devices through braking during vehicle travel, among other advantages.
- a clutch can be optionally included between first prime mover 20 and transmission 30 to further improve regenerative braking
- component 40 is a transfer case.
- Component 40 is coupled to transmission 30 , drive shaft 32 , and second prime mover 50 .
- Energy from regenerative braking bypasses transmission 30 , passing through component 40 to operate second prime mover 50 .
- motive power for drive shaft 32 from second prime mover 50 and accessory 60 bypasses transmission 30 , passing through component 40 .
- Component 40 further allows power from second prime mover 50 to be transferred to drive shaft 32 , assisting, for example, when the vehicle is accelerating.
- a conventional clutch can be placed between drive shaft 32 and component 40 to disconnect drive shaft 32 when the vehicle is parked and to allow second prime mover 50 to charge first rechargeable energy source 70 when transmission 30 is coupled to component 40 and first prime mover 20 is coupled to transmission 30 .
- An optional clutch can also be placed between component 40 and transmission 30 or between transmission 30 and first prime mover 20 . This allows power from regenerative braking to be channeled directly to second prime mover 50 and accessory 60 .
- component 40 is not coupled to second prime mover 50 and accessory 60 can optionally directly power equipment 100 .
- An optional APU 80 can charge first rechargeable energy source 70 and/or second rechargeable energy source 90 as required.
- a system 910 a second component 110 such as a power take-off (PTO) is coupled to the transmission 30 .
- Accessory 60 may be a hydraulic pump with the capability to produce more power than a single power take-off can transfer to transmission 30 .
- First component 40 and second component 110 are provided to cooperate to transfer more power from second rechargeable energy source 90 to transmission 30 than a single component is able to transfer.
- System 10 further includes a third prime mover 120 (e.g., a motor, such as an electric motor/generator, etc.), and a second accessory 130 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.).
- a third prime mover 120 e.g., a motor, such as an electric motor/generator, etc.
- a second accessory 130 e.g., a hydraulic pump, such as a variable volume displacement pump, etc.
- Transmission 30 is mechanically coupled to components 40 and 110 .
- Second component 110 is coupled to third prime mover 120 .
- Third prime mover 120 is coupled to second accessory 130 .
- First rechargeable energy source 70 is coupled to third prime mover 120 and provides power for the operation of third prime mover 120 .
- Second rechargeable energy source 90 is coupled to second accessory 130 and provides stored power for second accessory 130 . While FIG. 9 shows system 910 with both third prime mover 120 and second accessory 130 coupled to second component 110 , according to other exemplary embodiments, either third prime mover 120 or second accessory 130 may be absent.
- first component 40 and second component 110 may be configured to drive transmission 30 , possibly without assistance from prime mover 20 or when prime mover 20 is off. At slow speeds, if transmission 30 includes a torque converter which is not locked, the optional clutch may not be needed for components 40 and 110 to transfer power to transmission 30 and move the vehicle.
- an external power grid can be used with an electrical rechargeable energy source.
- Battery size and system software can be modified to charge the battery in the electric grid.
- the software can be modified to use a charge depleting mode if the battery is charged from the grid.
- a high horsepower prime mover 140 (e.g., a motor such as a high output power hydraulic motor, etc.) is coupled to second component 110 .
- High horsepower prime mover 140 is further coupled to second rechargeable energy source 90 (e.g., one or more accumulators). Second rechargeable energy source 90 is pressurized by accessory 60 during highway speeds or while parked.
- high horsepower prime mover 140 receives power from a PTO to pressurize second rechargeable energy source 90 during regenerative braking Conversely, mover 140 can aid acceleration of the vehicle through component 110 and transmission 30 .
- a clutch can be disposed between first prime mover 20 and transmission 30 for more efficient regenerative braking.
- the embodiment of system 1010 shown in FIG. 10 may include a system including second rechargeable energy source 90 and two hydraulic motor/pump units that is configured to provide constant system pressure and flow similar to the system described above.
- the first unit or high pressure motor is provided by high HP prime mover 140 .
- a high power prime mover 140 is coupled to second component 110 .
- High horsepower prime mover 140 is further coupled to an ultra capacitor 150 (e.g., a fast charge and discharge capacitor, etc.) which may include multiple capacitors.
- Capacitor 150 is in turn coupled to first rechargeable energy source 70 .
- First rechargeable energy source 70 is charged by second prime mover 50 during highway speeds or while parked, by auxiliary power unit 80 or by being plugged into the electrical power grid.
- High HP prime mover 140 may also independently recharge first rechargeable energy source 70 .
- APU 80 is optional.
- system 1210 in a seventh exemplary embodiment of a hybrid vehicle drive system, system 1210 , a second accessory 130 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.) and a high horsepower prime mover 140 (e.g., a motor such as a high power electric motor, etc.) are coupled to first prime mover 20 (e.g., to the crankshaft of an internal combustion engine, such as a diesel fueled engine, etc.). Second accessory 130 and high horsepower prime mover 140 allow large amount of power to be transmitted to first prime mover 20 .
- First rechargeable energy source 70 is coupled to high horsepower prime mover 140 via capacitor 150 and provides power for the operation of high horsepower prime mover 140 .
- Second rechargeable energy source 90 is coupled to second accessory 130 and provides stored power for second accessory 130 .
- High horsepower prime mover 140 may further be used to assist in cranking first prime mover 20 . Cranking first prime mover 20 may be particularly advantageous when first prime mover 20 is started and stopped frequently (e.g., to reduce idle time).
- High horsepower prime mover 140 may further be a more powerful starter motor. While FIG. 9 shows a system 10 with both second accessory 130 coupled to second component 110 and high horsepower prime mover 140 , according to other exemplary embodiments, either second accessory 130 may be absent or horsepower prime mover 140 may be absent.
- system 1310 in an eighth exemplary embodiment of a vehicle hybrid drive system, includes a first prime mover 20 (e.g., an internal combustion engine, such as a diesel fueled engine, etc.), a first prime mover driven transmission 30 , a component 40 (e.g., a power take-off (PTO), a transfer case, etc.), a second prime mover 50 (e.g., a motor, such as an electric motor/generator, a hydraulic pump with a thru-shaft, a hydraulic pump without a thru-shaft with second prime mover 50 only connected on one side etc.), and an accessory 60 (e.g., a hydraulic pump, such as a variable volume displacement pump, a hydraulic pump with a thru-shaft etc.).
- Transmission 30 is mechanically coupled to component 40 .
- Component 40 is coupled to accessory 60 .
- Accessory 60 is coupled to second prime mover 50 .
- accessory 60 is a hydraulic pump with a thru-shaft. Coupling the accessory 60 to the component 40 provides several advantages. Hydraulic pumps with thru-shafts are more common and generally less expensive than thru-shaft motors. Further, accessory 60 is generally smaller than second prime mover 50 and allows for a more compact package when coupled to component 40 .
- Second rechargeable energy source 90 is coupled to accessory 60 and provides stored power for accessory 60 .
- Accessory 60 stores energy in second rechargeable energy source 90 during the operation of system 10 (e.g., during cruising or during regenerative braking, etc.).
- Accessory 60 may draw energy from second rechargeable energy source 90 to provide bursts of high horsepower to first prime mover 20 until second rechargeable energy source 90 is exhausted.
- accessory 60 may directly power equipment and second rechargeable energy source 90 may be absent.
- system 1410 may include a clutch 160 coupled to component 40 .
- component 40 may be a PTO with an integral clutch to selectively disconnect component 40 from first prime mover 20 .
- component 40 may still be powered by second prime mover 50 and/or accessory 60 .
- the rotational inertia of component 40 along with any associated frictional losses represent power that is wasted in component 40 .
- Optional clutch 160 allows component 40 to be disengaged from second prime mover 50 and/or accessory 60 .
- Auxiliary Power Unit 80 is optional. Accessory 60 may directly power equipment 100 .
- Source 90 is optional.
- Optional clutch 160 could be used in other configurations where it would be advantageous to completely remove component 40 from second prime mover 50 or accessory 60 .
- system 1510 may include a clutch 165 .
- System 1510 as shown in FIG. 15 operates similar to the embodiment of system 1010 in FIG. 10 and includes an accessory 60 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.) coupled to component 40 .
- accessory 60 may be configured to provide a large amount of power to transmission 30 to augment first prime mover 10 .
- accessory 60 may transfer additional power to transmission 30 to facilitate accelerating the vehicle.
- Accessory 60 may operate with or without an electrical motor as shown in FIG. 10 .
- Clutch 165 is coupled to first prime mover 20 and transmission 30 .
- Clutch 165 is configured to selectively disengage first prime mover 20 from transmission 30 .
- the rotational inertia of first prime mover 20 along with any associated frictional losses represent energy that is wasted in first prime mover 20 and reduces the efficiency of regenerative braking in system 1510 . Disengaging first prime mover 20 from the rest of system 10 allows for more energy to be captured during regenerative braking
- system 1610 may include both a first component 40 such as a PTO, and a second component 110 such as a transfer case coupled to transmission 30 . Similar to the embodiment of system 810 in FIG. 8 , energy from regenerative braking bypasses transmission 30 , passing through component 110 to operate accessory 60 . Similarly, motive power for drive shaft 32 from accessory 60 bypasses transmission 30 , passing through component. Component 110 further allows power from accessory 60 to be transferred to drive shaft 32 , assisting, for example, when the vehicle is accelerating. Transmission 30 is further mechanically coupled to component 40 . Component 40 is coupled to second prime mover 50 .
- Second prime mover 50 may provide power to a second accessory 65 to pressurize second rechargeable energy source 90 when the vehicle is parked or moving at a constant speed. Second rechargeable energy source 90 provides additional power during the acceleration of the vehicle.
- System 1610 may optionally include a clutch between first prime mover 20 and transmission 30 and/or between transmission 30 and component 110 .
- system 1610 may further include a third component 180 such as a PTO, a third prime mover 190 , and a fourth prime mover 195 .
- Third prime mover 190 is coupled to third component 180 .
- Third prime mover 190 is coupled to first rechargeable energy source 70 configured to charge first rechargeable energy source 70 .
- second prime mover 50 may draw power from first rechargeable energy source 70 while first rechargeable energy source 70 continues to be charged by third prime mover 190 .
- Fourth prime mover 195 may be a larger starter motor and may be provided for first prime mover 20 to assist with low speed torque and quick starts of first prime mover 20 . The large starter motor can also reduce unnecessary idle.
- First prime mover 20 may be started and stopped to reduce unnecessary idling.
- Mover 195 , mover 190 , and component 180 are optional. Clutches can be placed between mover 20 and transmission 30 and between transmission 30 and component 110 .
- the interface between mover 50 and accessory 65 can be by a one way or two way interface.
- a system 1810 may include both a first component 40 and a second component 110 such as a PTO coupled to transmission 30 , and a third component 210 such as multi-input/output drive coupled to first component 40 and second component 110 .
- Third component 210 may be a hydraulic drive such as manufactured by Funk Manufacturing Co. and distributed by Deere & Company. Third component is further coupled to a second prime mover 50 .
- Second prime mover 50 may be an electric motor with the capability to produce more power than a single power take-off can transfer to transmission 30 .
- First component 40 , second component 110 , and third component 210 are provided to cooperate to transfer more power from second prime mover 50 to transmission 30 than a single component is able.
- system 1910 may include both a first component 40 and a second component 110 such as a PTO coupled to transmission 30 .
- System 1910 further includes a second prime mover 50 (e.g., a motor, such as an electric motor/generator, etc.), and a third prime mover 220 (e.g., a motor, such as an electric motor/generator, etc.), coupled to first component 40 and a second component 110 , respectively.
- a first rechargeable energy source 70 is coupled to second prime mover 50 and third prime mover 220 and provides power for the operation of second prime mover 50 and a third prime mover 220 .
- Clutch 165 can disengage first prime mover 20 , allowing the vehicle to be driven in an all electric mode if other vehicle systems (e.g., HVAC system, braking, power steering, etc.) are also electrically driven.
- the all electric mode may also be possible in other system configurations (as shown in FIG. 6 ).
- the all electric mode saves fuel by allowing first prime mover 20 to be off when not needed such as at low speeds or when the vehicle is stopped.
- transmission 30 may be constructed such that independent component input/output gears are used, one for each component 40 and 110 .
- a clutch located in transmission 30 and in between input/output gears for components 40 and 110 could allow series/parallel operation by operating first prime mover 20 , engaging clutch 165 and driving one of the component input/output gears causing either second prime mover 50 or third prime mover 220 to act as a generator.
- the clutch in transmission 30 disengages one component input/output gear from the other component input/output gear that interfaces with prime mover 50 acting as a generator.
- the remaining component input/output gear is coupled to the other gears in transmission 30 that transmit power to drive shaft 32 , possibly through another clutch internal to the transmission that is engaged.
- the remaining prime mover acts as a motor and powers transmission 30 through the component that is mechanically coupled to the input/output gear.
- prime mover 20 may operate at a more efficient speed and power range, independent of vehicle speed, or prime mover 20 may be turned off completely to further reduce fuel consumption.
- the disengaged prime mover may be synchronized in speed with the disengaged prime mover or prime movers 20 and then also coupled to transmission 30 to provide the needed additional power.
- the engaged prime mover or transmission can make adjustments in speed to adapt to the ratio of the input to output gearing of the component (PTO).
- an optional APU could charge first rechargeable energy source 70 while first prime mover 20 is kept off and the vehicle is operated in a series hybrid configuration in which clutch 165 is disengaged.
- the APU is preferably a low emissions power source using a low carbon fuel. Such a configuration would be useful in an urban area requiring low emissions.
- vehicle systems e.g., HVAC, braking, power steering, etc. are operated electrically when first prime mover 20 is off and the vehicle is being driven.
- system 2010 may be similar to the embodiment shown in FIG. 1 .
- second prime mover 50 e.g., a motor, such as an electric motor/generator, etc.
- second prime mover 50 may provide more power than necessary to drive accessory 60 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.).
- a third prime mover 230 such as a smaller electric motor/generator is provided.
- Third prime mover 230 is coupled to first rechargeable energy source 70 and provides power to accessory 60 .
- third prime mover 230 is a 10-60 hp electric motor, more preferably a 20-40 hp electric motor.
- a system 2110 may be similar to the embodiment shown in FIG. 1 system 101 .
- a fourth prime mover 240 may be coupled to first prime mover 20 with a clutch 245 (e.g., to the crankshaft of the internal combustion engine). The coupling may be direct to the crankshaft or through a belt or through a shaft.
- Fourth prime mover 240 may be, for example, an electric motor that provides power to one or more accessories 250 such as a cooling fan for first prime mover 20 , power steering pumps, an HVAC system, brakes, etc.
- it may be an integrated starter generator, optionally capable of regenerative braking
- System 2110 as shown in FIG. 21 is able to function in several modes, depending on the needs of the vehicle.
- System 10 can be configured as a combination series/parallel hybrid.
- first prime mover 20 may be turned off and clutch 165 , disengaged prime movers 50 and 220 may provide the power to drive wheels 33 .
- Movers 50 and 220 can be attached to a hydraulic pump.
- movers 50 and 220 can be integrated with a hydraulic pump as a single unit sharing a shaft.
- each of prime movers 50 and 220 are able to provide at least 100 hp so that 200 hp of power are transmitted to transmission 30 to drive wheels 33 .
- first prime mover 20 may be turned on. The speed of the output from first prime mover 20 is synchronized to the desired RPMs. Clutch 165 is engaged to couple first prime mover 20 to transmission 30 in addition to prime movers 50 and 220 . If the vehicle requires even more power to drive shaft 32 , clutch 245 may be engaged so that fourth prime mover 240 provides additional power to crankshaft of first prime mover 20 . Fourth prime mover 240 may simultaneously provide power to one or more accessories 250 . Using prime movers 50 , 220 and 240 to supplement the power driving wheels 33 allows a smaller, more efficient first prime mover 20 to be used in system 2110 .
- Fourth prime mover 240 can drive accessories 240 via belts and/or pulleys and/or shafts and/or gears can be mechanically coupled to first prime mover 20 through clutch 245 via belts, shafts, gears and/or pulleys.
- Prime mover 240 can be an electric motor with a through shaft.
- the through shaft can drive belts and/or pulleys for accessories (e.g., HVAC, fan, steering, pumps, brakes, etc.)
- Clutch 165 may be integrated with the transmission (as in a manual transmission or in an auto-shift transmission).
- clutch 165 may be in between the torque converter and the ICE or integrated into the transmission and placed between the torque converter and the input gear for the PTO (for those transmissions that utilize a PTO input gear independent of the torque converter).
- the integration and/or location of clutch 165 as described may be used for other embodiments shown in other diagrams in which a clutch can be placed in between the ICE and the transmission.
- first prime mover 20 is a relatively small internal combustion engine, it may not be able to provide all the power to drive wheels and regenerate rechargeable energy source 70 .
- clutch 165 is disengaged and clutch 245 is engaged so that first prime mover 20 only drives accessories 250 and third prime mover 240 which, in turn, acts as a generator to charge rechargeable energy source 70 .
- Prime movers 50 , and 220 provide power to drive wheels 33 .
- Clutch 245 may disconnect first prime mover 20 from fourth prime mover 240 and fourth prime mover 240 may provide power for accessories 250 .
- engine coolant may be circulated through a heating element (not shown).
- the ICE can then be turned off to eliminate fuel consumption and reduce emissions if first rechargeable energy source has enough energy to power other prime movers.
- a control system would assess various inputs to the system and adjust output of various devices, for example monitoring factors such as, energy levels, power demand, torque, control inputs, speeds, temperatures and other factors to determine appropriate operation of prime movers, activation of clutches and other devices for optimal efficiency and performance.
- the heated coolant would then be circulated back to first prime mover 20 .
- the heated coolant may also be used to warm rechargeable energy source 70 or other on-board batteries when the ambient air is cold. The warmer for the engine block and/or batteries could be used on other embodiments.
- System 2110 as illustrated in FIG. 21 advantageously can utilize a parallel hybrid configuration with assist from fourth prime mover 240 (e.g., accessory electric motor), first prime mover 20 (ICE), second prime mover 50 , and third prime mover 220 .
- fourth prime mover 240 e.g., accessory electric motor
- first prime mover 20 ICE
- second prime mover 50 e.g., second prime mover 50
- third prime mover 220 e.g., third prime mover 220 .
- transmission 30 can include a clutch (e.g. internal or external clutch 165 ).
- components 40 and 110 can be utilized to launch the vehicle and once the input shaft is close to or at the same speed as the engine drive shaft, the clutch can be engaged to couple prime mover 20 to transmission 30 . This method can also be used for other embodiments in which a clutch is used to engage the prime mover with the transmission.
- system 2110 in FIG. 21 can be provided as only a single PTO system.
- the use of two PTOs allows more power to be provided to transmission 30 .
- system 2110 of FIG. 21 can be arranged so that a parallel hybrid configuration is assisted from mover 220 and mover 50 during acceleration.
- power can be provided through components 40 and 110 via motors 50 and 220 with prime mover 20 off.
- Fourth prime mover 240 can be a multitude of electric motors for powering individual accessories. Clutch 245 and mover 240 can be connected to the front or other locations of prime mover 20 and could be used in other configurations with reference to FIGS. 1-20 .
- electric only acceleration can use standard drive train components and does not produce emissions.
- the use of prime mover 240 powered through source 70 for movers 220 and 50 reduces emissions.
- system 2110 as illustrated in FIG. 21 can also be configured to provide series electric only acceleration.
- Mover 20 is used to charge first rechargeable energy source 70 (e.g., batteries) and is not directly coupled to transmission 30 or is disconnected from transmission 30 via clutch 165 .
- Mover 240 provides power to accessories 250 .
- mover 20 can be configured to operate at most efficient RPM and load.
- motor 240 has a thru-shaft and can act as a generator while mover 20 powers accessories.
- Such a system would have advantages in stop and go type applications where electric motors can store energy during braking and accelerate vehicle without having to change the operating RPM of mover 20 .
- system 2110 as illustrated in FIG. 21 can also be operated in an ICE only cruise mode.
- ICE prime mover e.g., mover 20
- electric motors e.g., movers 220 and 50
- Such mode provides best constant power at cruising speeds.
- mover 20 can be directly coupled or coupled through clutch 165 to transmission 30 to provide best efficiency when mover 20 (ICE) can operate at a steady state and in an efficient RPM and load range. All unnecessary hybrid components can be disconnected during ICE only cruise mode, as well as any unnecessary loads.
- electric motors or hydraulic motors
- system 2110 as illustrated in FIG. 21 can also be provided in a mode in which highway speed is maintained by mover 20 and hybrid components are temporarily engaged to accelerate or slow the vehicle.
- An ICE (mover 20 ) can be used for base cruise power and one or more electric or hydraulic motors are engaged as needed for additional acceleration or to slow the vehicle.
- components 110 and 40 e.g., PTOs
- PTOs can be disengaged to remove unnecessary resistance of unneeded hybrid components.
- such a configuration allows a smaller horsepower engine to be used in optimal range for maximum efficiency and reduces large swings required in outputs from mover 20 (e.g., the engine operates less efficiently when required to provide power to provide large transient loads or when power output is much higher or lower than its optimal range).
- mover 50 can include a pump or a pump can be placed in between mover 50 and first component 40 .
- the hydraulic pump could be placed after or behind mover 50 .
- power from source 70 can be utilized to drive pump for hydraulic components using mover 50 .
- Such configuration would be advantageous when the vehicle is stationary as power from the batteries (e.g., source 70 ) is utilized to operate electric motors and hydraulic pumps.
- system 2110 illustrated in FIG. 21 can be operated in a mode in which mover 20 is operated and the rotational speed of the hydraulic pump is constant.
- Component 40 can be engaged so that mover 20 drives the hydraulic pump and mover 50 .
- a separate PTO can be engaged and used to recharge batteries while other electric motors can operate independently to provide power to the pump with varying rotation speed.
- the hydraulic pump can be placed between mover 50 and component 40 or behind mover 50 .
- the rotational speed of the pump can be kept constant and the output of the pump can be varied to change flow to meet required hydraulic flow variations. This configuration is particularly advantageous in digger derrick applications in which the speed of the auger must be changed by adjusting flow.
- system 2110 may be similar to the embodiment shown in FIG. 21 .
- a fifth prime mover 260 with a clutch 255 may be provided between first prime mover 20 and clutch 165 .
- Fifth prime mover 260 may act as a motor to power the drive train or as a generator to recharge first rechargeable energy source 70 or provide electrical power to other components of system 10 .
- System 10 as shown in FIGS. 22-29 , may advantageously operate in a variety of modes.
- FIG. 22 illustrates system 2110 in a series mode of operation as the vehicle is accelerating.
- First prime mover 20 turns fifth prime mover 260 which charges first rechargeable energy source 70 .
- Clutch 165 is disengaged to decouple fifth prime mover 260 from transmission 30 .
- First rechargeable energy source 70 provides electrical power to second prime mover 50 and third prime mover 220 which drive transmission 30 through first component 40 and second component 110 , respectively.
- only one of second prime mover 50 and third prime mover 220 may provide power to transmission 30 .
- FIG. 23 illustrates system 2110 in a series mode of operation as the vehicle is accelerating according to another exemplary embodiment.
- First prime mover 20 turns fifth prime mover 260 which charges first rechargeable energy source 70 .
- Clutch 165 is disengaged to decouple fifth prime mover 260 from transmission 30 .
- First rechargeable energy source 70 provides electrical power to second prime mover 50 and third prime mover 220 which drive transmission 30 through first component 40 and second component 110 , respectively.
- only one of second prime mover 50 and third prime mover 220 may provide power to transmission 30 .
- Clutch 245 is engaged so first prime mover 20 further drives fourth prime mover 240 .
- Fourth prime mover 240 may be used to power on-board accessories 250 and/or recharge first rechargeable energy source 70 .
- FIG. 24 illustrates system 2110 in a parallel mode of operation as the vehicle is accelerating. Power from both first prime mover 20 and first rechargeable energy source 70 is used to power the drive train. First prime mover 20 turns fifth prime mover 260 and transmission 30 . Clutch 165 is engaged to couple fifth prime mover 260 to transmission 30 . First rechargeable energy source 70 provides electrical power to second prime mover 50 and third prime mover 220 which drive transmission 30 through first component 40 and second component 110 , respectively. According to other exemplary embodiments, only one of second prime mover 50 and third prime mover 220 may provide power to transmission 30 . First rechargeable energy source 70 further powers fourth prime mover 240 .
- Clutch 255 is engaged so fourth prime mover 240 is coupled to first prime mover 20 to assist driving the drive train.
- clutch 165 may be disengaged and second prime mover 50 and third prime mover 220 (via components 40 and 110 ) may provide the initial power to accelerate the vehicle. This method may also reduce or eliminate the need for a torque converter.
- clutch 165 is engaged to couple first prime mover 20 and transmission 30 .
- FIG. 25 illustrates system 2110 in a cruising mode with first prime mover 20 providing the power to maintain a relatively constant speed for the vehicle (e.g., during highway driving). Unnecessary loads such as unused hybrid components, are disconnected. Directly coupling first prime mover 20 to drive shaft 32 provides best efficiency when first prime mover 20 can operate at a steady state in an efficient rpm and load range.
- hybrid components of system 2110 may be temporarily engaged when vehicle is in a cruising mode ( FIG. 25 ) to slow or accelerate the vehicle.
- First rechargeable energy source 70 may provide additional power to the drive train through one or more prime movers to accelerate the vehicle.
- the additional prime movers can be disengaged (e.g., by disengaging components 40 and 110 ) to remove unnecessary resistance of unneeded hybrid components.
- Temporarily using hybrid components to provide additional power to the drive shaft allows a smaller horsepower engine to be used in its optimal range for maximum efficiency. Large swings in required output from the ICE are further reduced. Internal combustion engines generally operate less efficiently when required to provide large transient loads or when power output is much higher or lower than the optimal range.
- additional prime movers may be engaged if needed to slow or accelerate the vehicle.
- second prime mover 50 can be coupled to transmission 30 through first component 40 to provide additional acceleration or slow the vehicle.
- first prime mover 20 may be turned off when the vehicle is stationary, as shown in FIG. 27 .
- Second prime mover 50 is powered by first rechargeable energy source 70 and drives accessory 60 and equipment 100 .
- accessory 60 may be provided between first component 40 and second prime mover 50 (as shown in FIG. 13 ).
- first prime mover 20 may be used to recharge first rechargeable energy source 70 .
- accessory 60 is a hydraulic pump. If the rotational speed of second prime mover 50 needs to vary (e.g., to accommodate changes in required hydraulic flow), component 110 is engaged and used to recharge first rechargeable energy source 70 through third prime mover 220 . Second prime mover 50 , meanwhile, can operate independently to provide power to accessory 60 with varying rotation speed. First rechargeable energy source 70 may further provide power to fourth prime mover 240 to drive on-board accessories 250 .
- component 40 may be engaged so that first prime mover 20 drives accessory 60 and second prime mover 50 without the intermediate recharging step.
- rotational speed of second prime mover 50 may be varied and component 110 may be absent. The system may be charged while varying flow by keeping the rotational speed of accessory 60 constant while varying the output of the pump to change flow (e.g. on a digger derrick application in which the speed of the auger must be changed by adjusting flow).
- first prime mover 20 may be used to recharge first rechargeable energy source 70 .
- First prime mover 20 turns fifth prime mover 260 which charges first rechargeable energy source 70 .
- Clutch 165 is disengaged to decouple fifth prime mover 260 from transmission 30 .
- Second prime mover 50 meanwhile, can operate independently to provide power to accessory 60 with varying rotation speed.
- First rechargeable energy source 70 may further provide power to fourth prime mover 240 to drive on-board accessories 250 .
- system 10 may be an idle reduction system.
- An idle reduction system may have a configuration similar to any previously described embodiment of system 10 but is not configured to provide power back to first prime mover 20 and drive shaft 32 (e.g., the drive train). Instead, component 40 only provides power in one direction (e.g., component 40 does not back-drive into transmission 30 ).
- Such a system 10 does not require additional software, calibration and control electronics that is required for the integration of a hybrid drive system.
- Such a system 10 may also not require sophisticated thermal management systems and higher capacity motors and drive electronics.
- Such a system 10 may include an optional secondary rechargeable power source 90 such as an accumulator and/or an optional APU 80 or may even include a connection to a power grid. Similar to the embodiment shown in FIG.
- system 2110 may include an optional clutch 160 between component 40 and second prime mover 50 or accessory 60 . If system 10 does not include a second rechargeable power source 90 such as an accumulator, system 10 may include air, wireless or fiber optic controls. If system 2110 includes a second rechargeable power source 90 , no additional control system is required (e.g., the accumulator forms a closed centered hydraulic system with hydraulic controls).
- a PTO with an integrated clutch is connected to a transmission and is coupled to a hydraulic motor.
- the hydraulic motor has a thru-shaft and is also coupled to an electric motor.
- the motor may be an AC motor or a DC motor. Batteries supply energy to the motor, electronics control motor speed and turn motor on and off.
- the PTO may be disengaged from the transmission to allow the electric motor to move the hydraulic pump. It may be necessary to modify the PTO to allow the shaft to spin freely when not engaged with the transmission.
- the prime mover usually a diesel or gas engine
- the engine rpm is adjusted so that the PTO shaft will provide the needed rotational speed for the hydraulic pump. PTO is then engaged and drives the hydraulic pump.
- the batteries can be charged through the electric motor, or through a vehicle alternator, or alternatively the batteries may remain depleted at the job-site and recharged once the vehicle returns to a location in which power from the grid can be used to recharge the batteries. If batteries remain depleted, the engine is started, PTO is engaged and hydraulic pump or other auxiliary equipment often used on a work truck at a job-site is mechanically powered by the first prime mover (ICE).
- ICE first prime mover
- the location to charge the vehicle may be a garage with a charging station or an ordinary plug. Using only grid power to recharge the batteries can simplify the idle reduction system.
- a separate vehicle monitoring system may record if the batteries are recharged at a garage overnight, or if the batteries need to be serviced or replaced.
- Such a system may send a signal via a link (such as cellular, satellite, or wireless local area network, or a wired connection) to a fleet management system so that fleet personnel can take action to maintain system or train vehicle operators.
- the battery system may be designed to be modular and easy for replacement battery modules to be installed.
- a modular, replaceable battery system can allow a vehicle to use a lower cost battery initially that has a shorter useful life and then replace it when the existing battery no longer can store sufficient energy, with the same type of battery, or a more advanced battery.
- a replaceable battery system may be beneficial since lower cost batteries can be used until more advanced batteries capable of more energy storage, lower mass and greater service life are available at lower costs.
- the battery system may have electronics integrated in a module and may include thermal management. The electronics may produce uniform input and output electrical characteristics, allowing for different battery technologies to be used, without affecting idle reduction performance.
- the battery may also be designed for quick replacement. Such a design could make it possible to use batteries that are charged at a base station.
- Batteries at a base station may provide power for a facility or to the grid when not needed for a vehicle.
- There may be additional electronics integrated with the battery module including monitoring circuitry to record power available, power used, how much of the battery life has been reduced (possibly based upon overall percent discharge, rate of discharge and recharge, average operating temperature, frequency of balancing various cells or frequency of achieving full state of charge).
- monitoring circuitry to record power available, power used, how much of the battery life has been reduced (possibly based upon overall percent discharge, rate of discharge and recharge, average operating temperature, frequency of balancing various cells or frequency of achieving full state of charge).
- Such a system may allow for rental of a battery system or payment based upon battery usage and estimated reduction in battery useful life.
- This type of modular battery system can also be used on other embodiments of hybrid systems described in this disclosure.
- systems 10 , 610 , 810 , 910 , 1010 , 1110 , 1210 , 1310 , 1410 , 1510 , 1610 , 1710 , 1810 , 1910 , 2010 and 2110 may perform many different functions.
- the function of the various exemplary embodiments of systems 10 , 610 , 810 , 910 , 1010 , 1110 , 1210 , 1310 , 1410 , 1510 , 1610 , 1710 , 1810 , 1910 , 2010 and 2110 may change based on the behavior of the vehicle that includes systems 10 , 610 , 810 , 910 , 1010 , 1110 , 1210 , 1310 , 1410 , 1510 , 1610 , 1710 , 1810 , 1910 , 2010 and 2110 .
- regenerative braking may be used to recharge first rechargeable energy source 70 and/or second rechargeable energy source 90 .
- first rechargeable energy source 70 and/or second rechargeable energy source 90 may be used to provide power to the drive train.
- on-board equipment 100 such as a hydraulic lift may be activated.
- second rechargeable energy source 90 e.g., a hydraulic accumulator
- accessory 60 such as a hydraulic pump.
- second rechargeable energy source 90 does not have to be charged and accessory 60 does not have to run to keep the hydraulic lift raised. Therefore, when the lift is not moving, second prime mover 50 may be turned off to reduce unnecessary consumption of energy from first rechargeable energy source and first prime mover 20 may be turned off to reduce unnecessary idling.
- Prime mover 20 may remain off when the vehicle is parked if there is sufficient energy in rechargeable energy sources for equipment, or “hotel loads”, or power that is exported from the vehicle to power tools or lights or other loads.
- Systems 10 , 610 , 810 , 910 , 1010 , 1110 , 1210 , 1310 , 1410 , 1510 , 1610 , 1710 , 1810 , 1910 , 2010 and 2110 may include sensors and a control system to automatically turn on and off first prime mover 20 , second prime mover 50 , accessory 60 , or other components of systems 10 , 610 , 810 , 910 , 1010 , 1110 , 1210 , 1310 , 1410 , 1510 , 1610 , 1710 , 1810 , 1910 , 2010 and 2110 when they are not needed thereby conserving fuel and reducing emissions.
- the elements of systems 10 , 610 , 810 , 910 , 1010 , 1110 , 1210 , 1310 , 1410 , 1510 , 1610 , 1710 , 1810 , 1910 , 2010 and 2110 may be coupled together with fluid couplings according to a twelfth embodiment.
- One exemplary embodiment of such coupling 170 is shown in FIG. 17 coupling a component 40 to a second prime mover 50 .
- Fluid coupling 170 includes one or more hydraulic motors/pumps 172 and a fluid channel 174 that couples together the hydraulic motors/pumps 172 .
- fluid couplings 170 may increase the cost of systems 10 , 610 , 810 , 910 , 1010 , 1110 , 1210 , 1310 , 1410 , 1510 , 1610 , 1710 , 1810 , 1910 , 2010 and 2110 , they allow greater flexibility in the placement of the various elements of systems 10 , 610 , 810 , 910 , 1010 , 1110 , 1210 , 1310 , 1410 , 1510 , 1610 , 1710 , 1810 , 1910 , 2010 and 2110 over that which would be generally possible if the elements are coupled with mechanical shafts.
- a Vehicle Monitoring and Control System which oversees the various inputs to the traction system.
- the VMCS manages the following input/outputs in order to determine the amount and frequency of the power being applied to the PTO in order to maintain vehicle drivability and optimize overall efficiency:
- acceleration mode the system routes power from the electric motor through transmission to the wheels.
- stopping mode the electric motor provides resistance through the transmission to wheels in order to create electrical energy while stopping the vehicle (also called regenerative energy).
- Another embodiment has selected a permanent magnet motor which provides the additional torque for launch assist and regenerative breaking to make the system more effective.
- Palumbo makes a note that the 215 frame is the largest induction style motor which can fit, which limits the power of the machine utilized.
- Another embodiment also alters the way the transmission shifts now by changing the CAN (vehicle network) commands for down/up shifting in order provide undetectable power blending from the electric motor and the engine through the transmission to the wheels.
- CAN vehicle network
- variable state torque converter on the transmission types being used with the PTO Hybrid technology is to reduce the effective losses in the engine and torque converter during regenerative braking
- VMCS vehicle monitoring and control system
- DIN Driver Interface Node
- APUC Auxiliary Power Unit controller
- CPI Charge Port Interface
- BMS Battery management System
- MEC Master Events Controller
- the vehicle power drive system of certain embodiments includes an internal combustion engine connected through a transmission to drive wheels of the vehicle.
- the transmission has a power take off (PTO) and PTO output gear.
- a parallel hybrid drive system, which is connected to the PTO includes an electric motor, an energy storage system (such as, for example, a battery system) and a vehicle monitoring and control system (VMCS).
- the electric motor is connected through a shaft to the PTO for bi-directional power flow.
- the electric motor operates an accessory device such as a hydraulic pump, an air compressor and a mounted accessory.
- the energy storage system is connected to the electric motor for sending and receiving electric power.
- the vehicle monitoring and control system (VMCS) has:
- a second, deceleration mode having the electric motor receive shaft power from the PTO while acting as a generator, to provide regenerative braking and recharging the energy storage system when the engine is not delivering power to the wheels, wherein further the PTO can be disengaged from the transmission, allowing the electric motor to freely provide power to the aforesaid accessory device from the energy storage system.
- the PTO is connected to a PTO output gear in the transmission.
- the aforesaid energy storage system preferably includes a battery pack, a battery charger for charging the battery pack using an outside electric power source, and a battery management system.
- the electric motor can have an optional auxiliary power take off, which can be disengaged when the VMCS is in the first mode.
- the VMCS optionally includes a dampening function to reduce vibration and gear backlash in the PTO when engaging either a switching mode, wherein the dampening function monitors the velocity and speed of the electric motor, thereby creating a closed-loop feedback loop to ensure smooth and efficient operation of the vehicle power drive system.
- the electrical motor can optionally be a permanent magnet motor providing additional torque during the aforesaid first accelerating mode and more regenerative power in the aforesaid second deceleration mode.
- the VMCS preferably monitors accelerator pedal position, engine throttle position, battery voltage, vehicle speed, and/or torque request to determine the amount and frequency of power being applied to the PTO for maintaining vehicle drivability and optimize overall efficiency.
- the hybrid system preferably includes a high voltage DC connection center between the energy storage system and an inverter for the electric motor to control electric power flow between the energy storage system, such as, for example, a battery system, and the electric motor.
- the VMCS preferably has a third park/neutral mode in which the electric motor recharges the battery pack. Additionally, the VMCS preferably has a fourth, all-electric stationary mode with the engine shut down, in which the electric motor operates the auxiliary power take off.
- the vehicle power drive system of the present includes an internal combustion engine connected through a transmission to drive wheels of a vehicle, with the transmission having a power take off (PTO), wherein the drive system is retrofitted by the steps of:
- connection a parallel hybrid drive system to the PTO through a bi-directional power flow shaft wherein the parallel hybrid drive system comprising an electric motor, an energy storage system, and an vehicle monitoring and control system (VMCS); and,
- VMCS vehicle monitoring and control system
- the VMCS controls the parallel hybrid drive system to use the electric motor to supplement drive power to the wheels of the vehicle when the internal combustion engine is driving the wheels and provides regenerative braking when the engine is not delivering power to the wheels whereby the battery in the parallel hybrid drive system is recharged.
- the retrofitting can also include the step of connecting the PTO to a torque converter in the transmission, as well as the step of recharging the energy storage system using an outside electric power source.
- the retrofitting can also include the step of withdrawing auxiliary power from the electric motor when the electric motor is recharging the energy storage system, or the step of disengaging the auxiliary power take off when the electric motor is delivering shaft power to the transmission.
- the VMCS uses a dampening function to reduce vibration in the PTO when switching between supplemental drive power and regenerative braking.
- the VMCS preferably also monitors accelerator pedal position, engine throttle position, battery voltage, vehicle speed, and/or torque request to determine the amount and frequency of power being applied to the PTO for maintaining vehicle drivability and to optimize overall efficiency.
- the hybrid system can use a high voltage DC connection center between the energy storage system and an inverter for the electric motor, to control electric power flow between the energy storage system and the electric motor, which can also recharge the energy storage system during park or neutral position of the transmission.
- the VMCS also provides a method for tuning the amount of power provided for launch assist and regenerative braking power applied in the forward and/or reverse direction, wherein further the VMCS has a tuning charge for the setting provided for each gear, the settings including pedal position vs. positive or negative torque applied, battery voltage vs. torque provided, torque provided vs. state of charge (SOC), and driver inputs including system disable.
- the system also shifts through the gear, and the transmission provides a signal over the vehicle data network to, wherein the VMCS, in order to provide advanced notice of a shift event, and wherein further based upon this information and the pedal position, so that the VMCS can increase or decrease the power provided to the electric motor, allowing for smoother and more efficient shifting, thereby enhancing the vehicle ride and reducing fuel consumption.
- the VMCS also preferably interfaces with any original equipment manufacturers (OEM) vehicle data system in order to eliminate or reduce regenerative braking based on anti-lock or traction control events.
- OEM original equipment manufacturers
- FIG. 30 is a high level functional illustration of another embodiment of a hybrid vehicle drive system.
- the illustration shows the interrelation of all the systems the proposed parallel hybrid propulsion system as affixed to an automatic transmission ( 2 ) powered by an internal combustion engine ( 1 ) in a class 6, 7 or 8 bus or truck.
- Elements ( 1 ), ( 2 ), ( 3 ), ( 7 ) and ( 8 ) are typical components found in a conventional Class 6, 7 or 8 truck or bus. These include the internal combustion engine ( 1 ), the transmission ( 2 ), a power take-off (PTO) element ( 3 ), wherein the transmission ( 2 ) communicates with a differential ( 7 ) driving wheels ( 8 ). Those skilled in the art understand the operation of these components and how they interact with each other under typical driving conditions.
- the mechanical portion of the embodiment is illustrated in the elements including PTO device ( 3 ), electric power ( 4 ), power electronics/battery ( 5 ), Vehicle Monitoring and Control System (VMCS) ( 6 ) and an auxiliary device ( 10 A), such as a compressor.
- the PTO element ( 3 ) is connected to an electric motor ( 4 ) with a short driveshaft ( 9 ).
- the shaft ( 9 ) can transmit power into or out of the PTO element ( 3 ).
- the electric motor ( 4 ) is powered by a power electronics/battery system ( 5 ), also a bi-directional system which can provide power to, or accept power from the electric motor ( 3 ) which is acted on mechanically via the PTO ( 3 ).
- the Vehicle Monitoring and Control System (VMCS) oversees the operation of the power electronics/battery system ( 5 ) by monitoring the inputs described above along with providing output data to the driver and/or other on-board vehicle systems.
- VMCS Vehicle Monitoring and Control System
- auxiliary device such as a compressor ( 10 )
- auxiliary systems can include a variety of rotating machines used to transmit fluids and/or power via the PTO.
- FIGS. 31-37 are illustrations of the power flow in each of the operational modes that the PTO Hybrid can be operated within:
- FIG. 31 is an Overall system diagram.
- FIG. 32 is a Driving mode during acceleration.
- FIG. 33 is a Driving mode during deceleration.
- FIG. 34 is a Driving mode during park/neutral.
- FIG. 35 is a Stationary mode during an all electric operation.
- FIG. 36 is a Stationary mode during engine operation.
- FIG. 37 is a Plug in mode during battery charging.
- FIGS. 33-37 illustrate the flower of mechanical energy, electrical energy, controls power and control logic within each of the operational modes.
- FIG. 31 shows major subsystems and elements used in a PTO hybrid system of this embodiment. Most of the blocks shows are self-explanatory, however some may need elaboration. Note the “battery isolator/combiner” ( 15 ) on the left center; this controls connections between the vehicle battery ( 16 ) and a separate 12V battery ( 17 ) which operates control systems as well as “Heating System” ( 18 ).
- the central block “High Voltage DC Connection Center” ( 19 ) has 3 connections; to the inverters ( 20 A) which convert DC from the battery packs to AC to operate the PM motor, and to the DC to DC converter ( 21 ) which steps the 600 VDC down to 12V for typical vehicle loads including connections to both 300V battery packs, SES 1 ( 25 ) and SES 2 ( 26 ) with their own local management systems and chargers.
- the AC charge port ( 30 ) on the right connects through charge port interface ( 31 ) (CPI) to both battery chargers.
- the “Electric Motor” ( 4 ) which is used through the “PTO clutch” ( 3 ) for both acceleration and regenerative braking also powers a “Hydraulic Pump” ( 35 ) for buckets hydraulics.
- Auxiliary power unit controller ( 37 ) (“APUC”) and driver interface node ( 38 ) (DIN) provide the power requirement to the Motor/Drive Inverter motor based on the accelerator pedal position and the power required during stationary mode operation respectively, with the “Motor Drive/Inverter” ( 20 A) which in turn provides electric energy to the electric motor.
- FIG. 34 shows a typical operation while the vehicle is in “Park/Neutral” with the engine ( 1 ) running whereby engine power can be used to spin the electric motor ( 4 ) through the PTO ( 3 ) as a generator to top up both 300V battery packs and/or power the auxiliary drive. Note that in this mode the hydraulic pump ( 35 ) is disengaged from the electric motor ( 4 ).
- FIG. 35 shows activity which can be supported by the PTO hybrid system of this invention while the vehicle is parked with the engine ( 3 ) off. In this mode, no site pollution or emissions are generated, and engine noise is absent. All power is provided from the two 300V battery packs. This all-electric mode can power bucket hydraulics, auxiliaries, and charging of vehicle 12V battery 916 ) as well as a 12V battery through a DC/DC converter 921 ). The bold power arrows show the flow paths.
- FIG. 36 shows the power flow for the engine-driven counterpart stationary mode.
- all power is derived from the engine ( 1 ), and the 300V battery packs can be recharged via engine power.
- This mode can be used briefly until the 300V batteries are charged if they had been depleted at a work site in all-electric mode. However, this mode can also supply bucket hydraulics since the motor 94 ), while spun by the engine ( 1 ) as a generator to charge the 300V battery packs, is also shaft-connected to the hydraulic pump ( 35 ).
- FIG. 37 is a diagram showing the connections for plug-in charging at a charging station. 12V battery chargers not part of the vehicle system are used to charge the two 12V batteries, while the chargers built into 300V packs SES 1 ( 25 ) and SES 2 ( 26 ) are used to charge those high voltage packs.
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Abstract
Description
- The present application claims the benefit of and priority to and is also a continuation of U.S. application Ser. No. 13/397,561 filed on Feb. 15, 2012 (096637-0141) which is incorporated herein by reference in its entirety, which is a continuation-in-part of U.S. application Ser. No. 12/130,888 filed on May 30, 2008 (096637-0106) which is incorporated herein by reference in its entirety and claims the benefit of and priority to U.S. Provisional Application Ser. No. 60/979,755 filed Oct. 12, 2007 (096637-0103), which is incorporated herein by reference in its entirety, and U.S. Provisional Application Ser. No. 61/014,406 filed Dec. 17, 2007 (096637-0104) which is incorporated herein by reference in its entirety, and which is also a continuation-in-part of U.S. application Ser. No. 12/217,407 filed on Jul. 3, 2008 (096637-0115), which is incorporated herein by reference in its entirety, and claims the benefit of and priority to U.S. Provisional Application Ser. No. 60/959,181 filed Jul. 12, 2007 (INV-79701/US1/X) which is incorporated herein by reference in its entirety and U.S. Provisional Application Ser. No. 61/126,118, filed May 1, 2008 (096637-0120), which is incorporated herein by reference in its entirety.
- The present disclosure relates to vehicle drive systems. More particularly, the present disclosure relates to hybrid vehicle drive systems employing electric and hydraulic components.
- Hybrid vehicle drive systems commonly employ at least two prime movers arranged in different configurations relative to a transmission. One known configuration is found in so-called “series-parallel” hybrids. “Series-parallel” hybrids are arranged such that multiple prime movers can power the drive shaft alone or in conjunction with one another.
- In one known hybrid vehicle drive system, a first and second prime mover (e.g., an internal combustion engine and an electric motor/generator) are arranged in a parallel configuration and used to provide power to a drive shaft and a power take-off (PTO) shaft through a transmission. PTO shafts are generally used to drive auxiliary systems, accessories, or other machinery (e.g., pumps, mixers, barrels, winches, blowers, etc.). One limitation of this system is that the second prime mover is typically positioned between the first prime mover and the transmission, creating the need to reposition existing drive train components.
- Hybrid systems used in larger trucks, greater than
class 4, have typically utilized two basic design configurations—a series design or a parallel design. Series design configurations typically use an internal combustion engine (heat engine) or fuel cell with a generator to produce electricity for both the battery pack and the electric motor. There is typically no direct mechanical power connection between the internal combustion engine or fuel cell (hybrid power unit) and the wheels in an electric series design. Series design hybrids often have the benefit of having a no-idle system, including an engine-driven generator that enables optimum performance, lacking a transmission (on some models), and accommodating a variety of options for mounting the engine and other components. However, series design hybrids also generally include a larger, heavier battery; have a greater demand on the engine to maintain the battery charge; and include inefficiencies due to the multiple energy conversions. Parallel design configurations have a direct mechanical connection between the internal combustion engine or fuel cell (hybrid power unit) and the wheels in addition to an electric or hydraulic motor to drive the wheels. Parallel design hybrids have the benefit of being capable of increased power due to simultaneous use of the engine and electric motor, having a smaller engine with improved fuel economy while avoiding compromised acceleration power, and increasing efficiency by having minimal reduction or conversion of power when the internal combustion engine is directly coupled to the driveshaft. However, parallel design hybrids typically lack a no-idle system and may have non-optimal engine operation (e.g., low rpm or high transient loads) under certain circumstances. Existing systems on trucks ofClass 4 or higher have traditionally not had a system that combines the benefits of a series system and a parallel system. - Therefore, a need exists for a hybrid vehicle drive system and method of operating a hybrid vehicle drive system that allows a drive shaft to receive power from at least three components. There is also a need for a hybrid vehicle drive system that allows for the prevention of friction and wear by disengaging unused components. There is a further need for a hybrid vehicle drive system that uses regenerative braking to store energy in at least two rechargeable energy sources. Still further, there is a need for a PTO-based hybrid system. Further still, there is a need for a hybrid system optimized for use with a hydraulic system of the vehicle.
- The need for engine idle reduction systems and methods also exists. Sophisticated power train control systems and power management systems required for the operation of a hybrid vehicle drive system can add cost and complexity. Therefore there is a need for an idle reduction system that allows equipment to be powered by one pump. There is also a need for a system that allows for quick recharging from three sources (vehicle engine, external power grid, APU). There is also a need for a system that can provide power to the equipment from two sources simultaneously (vehicle engine and electric motor) during periods when equipment power requirements exceed the output of only an electric motor driven pump.
- There is a further need for a series/parallel design in which the system can operate using either series or parallel configurations depending upon which is most advantageous given operating requirements.
- One embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system further includes a hydraulic motor in direct or indirect mechanical communication with the PTO and an electric motor in direct or indirect mechanical communication with the hydraulic motor. The electric motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO. The hydraulic motor can receive power from the electric motor which is powered by the rechargeable power source.
- Another embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system further includes a hydraulic motor in direct or indirect mechanical communication with the PTO and an electric motor in direct or indirect mechanical communication with the hydraulic motor. The electric motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO. The hydraulic motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO.
- Another embodiment relates to a hybrid vehicle drive system for use with a first prime mover and a first transmission driven by the first prime mover. The system includes a second prime mover coupled to a rechargeable energy source, a component, and an accessory configured to be coupled to the second prime mover. The first prime mover is configured to provide power through the transmission and the component to operate the second prime mover, and the second prime mover is configured to provide power to the drive shaft through the component. The accessory is configured to operate through the operation of the second prime mover.
- Yet another embodiment relates to a hydraulic system used in a hybrid vehicle of any type. The vehicle includes a first prime mover, a first prime mover driven transmission, a second prime mover, a component, and a first rechargeable energy source. The first prime mover can provide power to the second prime mover through the transmission and the component. The second prime mover can provide power to the vehicle's drive shaft through the component. The first rechargeable energy source can power the second prime mover or be recharged by the second prime mover. The hydraulic system includes an accessory. The accessory can be coupled to the second prime mover in such a way that the accessory is operated through operation of the second prime mover. The accessory can also operate the second prime mover.
- Yet another embodiment relates to a method of operating a hybrid vehicle drive system. The drive system includes a first prime mover, a first prime mover driven transmission, a second prime mover, a first rechargeable energy source, a component, and an accessory. The second prime mover can affect the motion of a drive shaft alone or in combination with the first prime mover. The first rechargeable energy source can power or be recharged by the second prime mover. The component transfers energy between the transmission and the second prime mover in both directions. Operation of the second prime mover powers the accessory, and the accessory can also operate to power the second prime mover.
- In another embodiment, a first and second electric motor are coupled to the power source. One is indirect and with PM and one is in with PTO, whereby the first E motor can either provide propulsion or generate power and the second E motor can either provide power to the PTO driven transmission or receive power for regeneration breaking, an optional hydraulic motor can be coupled after the second electric.
- Yet another embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system further includes a first electric motor coupled to the power source, a hydraulic motor in direct or indirect mechanical communication with the first electric motor, and a second electric motor in direct or indirect mechanical communication with the PTO. The second electric motor can receive power from the prime mover driven transmission through the PTO and charge the power source. The hydraulic motor can receive power the first electric motor. The second electric motor has a higher horsepower rating than the first electric motor.
- Another exemplary embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system further includes a first electric motor and a second electric motor coupled to the power source. The second electric motor is in direct or indirect mechanical communication with the PTO. The first electric motor is in direct or indirect communication with the first prime mover. The first electric motor can either provide propulsion or generate power and the second electric motor can either provide power to the PTO for the transmission or receive power via regenerated braking. An optional hydraulic motor can be coupled to the second electric motor. According to one alternative embodiment, one of the first and second electric motors can operate as a generator while the other of the first and second electric motors operates as a motor.
- Embodiments will be described with reference to the accompanying drawings, in which:
-
FIG. 1 is a general block diagram of a hybrid vehicle drive system according to a first exemplary embodiment. -
FIG. 2 is a general block diagram illustrating a first exemplary operation of the hybrid vehicle drive system illustrated inFIG. 1 . -
FIG. 3 is a general block diagram illustrating a second exemplary operation of the hybrid vehicle drive system illustrated inFIG. 1 . -
FIG. 4 is a general block diagram illustrating a third exemplary operation of the hybrid vehicle drive system illustrated inFIG. 1 . -
FIG. 5 is a general block diagram illustrating a fourth exemplary operation of the hybrid vehicle drive system illustrated inFIG. 1 . -
FIG. 6 is a general block diagram illustrating a fifth exemplary operation of the hybrid vehicle drive system illustrated inFIG. 1 modified to include a clutch in accordance with a second exemplary embodiment. -
FIG. 7 is a general block diagram illustrating a sixth exemplary operation of a hybrid vehicle drive system illustrated inFIG. 1 . -
FIG. 8 is a general block diagram of a of the hybrid vehicle drive system according to a third exemplary embodiment. -
FIG. 9 is a general block diagram of a hybrid vehicle drive system illustrating the use of a second power take-off, a third prime mover, and a second accessory component according to a fourth exemplary embodiment. -
FIG. 10 is a general block diagram of a hybrid vehicle drive system illustrating the use of a second power take-off and a motor according to a fifth exemplary embodiment. -
FIG. 11 is a general block diagram of a hybrid vehicle drive system illustrating the use of a second power take-off, a high horsepower motor, and a capacitor according to a sixth exemplary embodiment. -
FIG. 12 is a general block diagram of a hybrid vehicle drive system illustrating the use of a second accessory component, a high horsepower motor, and a capacitor coupled to the first prime mover according to a seventh exemplary embodiment. -
FIG. 13 is a general block diagram of a hybrid vehicle drive system including an accessory coupled to a power take-off and a second prime mover coupled to the accessory according to an eighth exemplary embodiment. -
FIG. 14 is a general block diagram of a hybrid vehicle drive system including a clutch between the accessory and the power take-off according to a ninth exemplary embodiment. -
FIG. 15 is a general block diagram of a hybrid vehicle drive system that includes a clutch between the first prime mover and the transmission according to a tenth exemplary embodiment. -
FIG. 16 is a general block diagram of a hybrid vehicle drive system including a second prime mover coupled to a PTO and an accessory coupled to a transfer case according to an eleventh exemplary embodiment. -
FIG. 17 is a general block diagram of a fluid coupling for connecting two exemplary elements of a hybrid vehicle drive system according to a twelfth exemplary embodiment. -
FIG. 18 is a general block diagram of a hybrid vehicle drive system that includes a multi-input/output drive coupled to first and second PTOs according to a thirteenth exemplary embodiment. -
FIG. 19 is a general block diagram of a hybrid vehicle drive system that does not include hydraulic drive components and includes electric motors coupled to each of two PTOs coupled to the first prime mover according to a fourteenth exemplary embodiment. -
FIG. 20 is a general block diagram of a hybrid vehicle drive system that includes a smaller electric motor as a third prime mover to power a hydraulic pump according to a fifteenth exemplary embodiment. -
FIG. 21 is a general block diagram of a hybrid vehicle drive system that does not include hydraulic drive components and includes electric motors coupled to each of two PTOs coupled to the first prime mover along with an electric motor coupled to the internal combustion engine to power on-board accessories according to a sixteenth exemplary embodiment. -
FIG. 22 is a general block diagram of a hybrid vehicle drive system illustrated inFIG. 21 in a first exemplary series mode operation. -
FIG. 23 is a general block diagram of a hybrid vehicle drive system illustrated inFIG. 21 in a second series mode of operation. -
FIG. 24 is a general block diagram of a hybrid vehicle drive system illustrated inFIG. 21 in a first exemplary parallel mode of operation. -
FIG. 25 is a general block diagram of a hybrid vehicle drive system illustrated inFIG. 21 in a first exemplary cruising mode -
FIG. 26 is a general block diagram of a hybrid vehicle drive system illustrated inFIG. 21 in a second exemplary cruising mode. -
FIG. 27 is a general block diagram of a hybrid vehicle drive system illustrated inFIG. 21 in an exemplary stationary mode. -
FIG. 28 is a general block diagram of a hybrid vehicle drive system illustrated inFIG. 21 in a first exemplary recharge mode. -
FIG. 29 is a general block diagram of a hybrid vehicle drive system illustrated inFIG. 21 in a second exemplary recharge mode to recharge the energy source. -
FIG. 30 is a high level block diagram showing the relationship between the major hardware elements and the embodiment. -
FIG. 31 is a detailed block diagram of the components and subsystems of the entire vehicle system of the embodiment illustrated inFIG. 30 . -
FIG. 32 is a diagram showing only those blocks used during vehicle acceleration along with arrows indicating power flows for the embodiment illustrated inFIG. 30 . -
FIG. 33 is a diagram showing only those blocks used during vehicle deceleration including arrows to show power flow directions in the embodiment illustrated inFIG. 30 . -
FIG. 34 is a diagram showing the blocks used in the driving mode of “park/neutral” with arrows showing possible power flow paths in the embodiment illustrated inFIG. 30 . -
FIG. 35 is a diagram showing the blocks involved in the support of an all-electric stationary mode also indicating power flow directions via arrows in the embodiment illustrated inFIG. 30 . -
FIG. 36 is a diagram showing the elements involved in supporting an engine powered stationary mode indicating power flow directions in the embodiment illustrated inFIG. 30 . -
FIG. 37 is a diagram showing the blocks and power flows involved in the plug-in charging mode of the PTO Hybrid System in the embodiment illustrated inFIG. 30 . - Hybrid vehicle drive systems according to many possible embodiments are presented. One feature of one exemplary embodiment of the hybrid vehicle drive system is that a drive shaft can be powered singly or in any combination by a first prime mover, a second prime mover, and an accessory. Preferred embodiments incorporate hydraulic systems into the hybrid vehicle drive system for optimal energy storage and usage. It is noted that the term motor as used herein refers to a motor/generator or motor/pump and is not limited to a device that performs only motor operations.
- Another feature of one exemplary embodiment of the system is that when a power take-off (PTO) configured to be engaged or disengaged while a transmission is moving is used, any unneeded drive system components other than a first prime mover can be entirely disconnected from the drive train, reducing inefficiencies and wear in situations where the different portions of the system do not need to interact, such as when a drive shaft is solely driven by the first prime mover, or when a vehicle using the system is stationary and a second prime mover and accessory are not being driven by the first prime mover. Similarly, an optional clutch between the first prime mover and the transmission can be used to reduce inefficiencies during regenerative braking by removing the first prime mover from the system when vehicle braking occurs.
- Yet another feature of one exemplary embodiment of the system is that the accessory (e.g., hydraulic pump, pneumatic pump, electric motor, etc.) can be powered singly or in any combination by the first prime mover, the second prime mover, energy from braking, or energy stored in a second rechargeable energy source (e.g., battery, ultra capacitor, hydraulic accumulator, etc.). The presence of a second rechargeable energy source also can obviate the need for a complicated pump control system when the accessory is a hydraulic pump. If the pump is a variable volume displacement pump, further simplification is possible because a clutch may not be needed between the second prime mover and the pump. Other types of pumps can also be used. According to one exemplary embodiment, with a clutch between the second prime mover and the hydraulic pump, the pump can be an inexpensive gear pump.
- Yet another feature of one exemplary embodiment of the system is that a first rechargeable energy source connected to the second prime mover can be recharged in one or more modes. These modes include: the second prime mover using power from the first prime mover; the second prime mover using power from regenerative braking; the accessory, using energy stored in the second rechargeable energy source to operate the second prime mover; an auxiliary power unit connected to the first rechargeable energy source; an engine alternator, when present (the alternator can be increased in capacity to allow for this additional charge while driving or idle); or from an external power source, such as being directly plugged into an external power grid. The second prime mover can draw upon this power stored in the first rechargeable power source before daily operation of the vehicle (e.g., after overnight charging), when the vehicle is stopped, or in other situations. In such situations, the second prime mover would operate the accessory to pre-charge or pressurize the second rechargeable energy source before the energy is needed, which would provide higher density power storage when the second rechargeable power source is a hydraulic accumulator, among other advantages. A higher density energy storage device is intended to provide more available power at low revolutions per minute (RPM) operation and an overall lower mass system.
- Various additional aspects and advantages will become apparent to those skilled in the art from the following detailed description of the embodiments.
- Referring to
FIGS. 1-20 , hybrid vehicle drive systems according to various exemplary embodiments and exemplary operations are shown. Various features of these embodiments can be employed in other embodiments described herein. - As shown in
FIG. 1 , a first exemplary embodiment of a hybrid vehicle drive system,system 10, can be employed on any type of vehicle. According to one embodiment, the vehicle can be any type of light, medium, or heavy duty truck. In one preferred embodiment, the vehicle is a truck that employs hydraulic systems such as a boom truck. Alternatively, the vehicle can be any type of platform where hybrid systems are employed. The vehicle may have a wide variety of axle configurations including, but not limited to a 4×2, 4×4, or 6×6 configuration. - In one preferred embodiment, the vehicle is a truck such as an International 4300
SBA 4×2 truck. According to one exemplary embodiment, the vehicle includes an IHC MaxxforceDT engine with an output of 255 HP and 660 lbs. of torque. The vehicle further includes an Allison 3500_RDS_P automatic transmission. The vehicle has a front gross axle weight rating (GAWR) of 14,000/12,460 lbs., a rear GAWR of 19,000/12,920 lbs., and a total GAWR of 33,000/25,480. The vehicle includes a hydraulic boom. The vehicle boom has a working height of approximately 54.3 feet, a horizontal reach of 36.0 feet, an upper boom has an extension of approximately 145 inches. The lower boom may travel between approximately 0 degrees and 87 degrees from horizontal. The upper boom may have a travel between approximately −20 degrees and 76 degrees from horizontal. According to an exemplary embodiment, the vehicle may further include a hydraulic platform rotator, a hydraulic articulating jib and winch (e.g., with a capacity of 1000 lbs.), a hydraulic jib extension, hydraulic tool outlets, an on-board power charger providing 5 kW at 240 VAC, and electric air conditioning with a capacity of 5,000 BTU. The above referenced power, boom, and types of components are exemplary only. -
System 10 includes a first prime mover 20 (e.g., an internal combustion engine, such as a diesel fueled engine, etc.), a first prime mover driventransmission 30, a component 40 (e.g., a power take-off (PTO), a transfer case, etc.), a second prime mover 50 (e.g., a motor, such as an electric motor/generator, a hydraulic pump with a thru-shaft, etc.), and an accessory 60 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.). In certain embodiments,accessory 60 can act as a third prime mover as described below.Transmission 30 is mechanically coupled tocomponent 40.Component 40 is coupled to secondprime mover 50. Secondprime mover 50 is coupled toaccessory 60. According to one exemplary embodiment, secondprime mover 50 is a 50 kW electric motor. When acting as a generator (as shown inFIGS. 3 and 4 ), secondprime mover 50 may generate 30 kW continuously or as much as 75 kW at peak times. The above referenced power parameters are exemplary only. Secondprime mover 50 may be further used to power various on-board components such as compressors, water pumps, cement mixer drums, etc. - In a preferred embodiment,
accessory 60 is embodied as a hydraulic motor and includes a through shaft coupled tocomponent 40 embodied as a PTO. The through shaft is also coupled to the shaft of themover 50 embodied as an electric motor. In another embodiment, electric motor includes the through shaft that is coupled to the PTO and the pump. - According to one embodiment,
system 10 also includes a first rechargeable energy source 70 (e.g., a battery, a bank of batteries, a fuel cell, a capacitive cell, or other energy storage device), an Auxiliary Power Unit (APU) 80 (e.g., an internal combustion engine, possibly fueled by an alternative low emission fuel (e.g., bio-mass, natural gas, hydrogen, or some other fuel with low emissions and low carbon output), and a generator, a fuel cell, etc.), a second rechargeable energy source 90 (e.g. a hydraulic accumulator, ultra capacitor, etc.), and onboard or external equipment 100 (e.g., hydraulically operated equipment, such as an aerial bucket, etc.). Firstrechargeable energy source 70 is coupled to secondprime mover 50 and provides power for the operation of secondprime mover 50. First rechargeable (e.g., pressurized or rechargeable)energy source 70 may include other auxiliary components (e.g., an inverter provided for an AC motor, a DC-to-DC converter to charge a DC system, an inverter for power exportation to a power grid or other equipment, controllers for motors, a charger, etc.).APU 80 is coupled to firstrechargeable energy source 70 and provides power to firstrechargeable energy source 70. According to one exemplary embodiment, secondrenewable energy source 90 is a hydraulic system with a high pressure portion (e.g., an accumulator) and a low pressure component (e.g., a reservoir tank). - Second
rechargeable energy source 90 is coupled toaccessory 60 and provides stored power foraccessory 60. Onboard orexternal equipment 100 can be coupled toaccessory 60 or secondrechargeable energy source 90 and operate using power from eitheraccessory 60 or secondrechargeable energy source 90. In one embodiment, onboard orexternal equipment 100 is coupled through secondrechargeable energy source 90 toaccessory 60. According to various exemplary embodiments,APU 80 may also provide power to both secondrenewable energy source 90 and firstrechargeable energy source 70 when high hydraulic loads are required.APU 80 and secondrenewable energy source 90 may both provide power to hydraulically operatedequipment 100. - In one preferred embodiment,
component 40 is a PTO designed to engage or disengage while the transmission is moving via a clutch mechanism. The PTO can be a street side or curb side PTO.Component 40 can be disengaged fromtransmission 30 when firstprime mover 20 exceeds the maximum operating RPM of any component connected throughcomponent 40. For example,component 40 can be disengaged if firstprime mover 20 exceeds the maximum operating RPM ofaccessory 60. Alternatively, all components connected throughcomponent 40 can operate throughout the RPM range of firstprime mover 20, andcomponent 40 can be engaged continuously. In a preferred embodiment,component 40 can be disengaged during high speed steady driving conditions to reduce friction and wear onsystem 10. - Alternatively,
transmission 30 may be modified to incorporatecomponent 40 and optionally incorporate secondprime mover 50 directly intotransmission 30.Component 40, embodied as a PTO, may optionally include a PTO shaft extension. An example of a PTO shaft extension is described in U.S. Pat. No. 6,263,749 and U.S. Pat. No. 6,499,548 both of which are incorporated herein by reference.Component 40 can have a direct connection totransmission 30. -
Component 40 may interface withtransmission 30 in a way that there is a direct coupling betweenmover 20,component 40, andtransmission 30. Alternatively,component 40 may interface withtransmission 30 in a way that the interface directly couplescomponent 40 to the torque converter oftransmission 30. The torque converter may be in mechanical communication withmover 20, but rotating at a different speed or may rotate at the same speed asmover 20 if it is locked up. - A clutch mechanism can be employed to properly engage and disengage
component 40. In another preferred embodiment,component 40 is a PTO that has an internal clutch pack, such as a hot shift PTO. A hot shift PTO can be used when frequent engagements of the PTO are required, often with automatic transmissions. In one embodiment, secondprime mover 50 can be operated at the same RPM as firstprime mover 20 prior to the engagement ofcomponent 40. This is intended to reduce wear on the clutch mechanism ifcomponent 40 has a 1:1 ratio of input speed to output speed. If other ratios forcomponent 40 are used, the RPM of firstprime mover 20 or secondprime mover 50 can be adjusted accordingly prior to engagement to insure that input and output speed match the ratio of the component to reduce wear on the clutch mechanism. - While
component 40 is engaged, secondprime mover 50 can operate to provide power to adrive shaft 32 viatransmission 30. - In
FIG. 1 , firstprime mover 20 provides power to driveshaft 32 throughtransmission 30. Secondprime mover 50 provides additional or alternative power to driveshaft 32 throughcomponent 40 andtransmission 30. Driveshaft 32 provides power to two ormore wheels 33 used to provide forward and backward momentum to the vehicle. For example, secondprime mover 50 can optionally provide the sole source of power to driveshaft 32. Alternatively, secondprime mover 50 can provide additional power to driveshaft 32 during vehicle acceleration. When providing power to driveshaft 32, secondprime mover 50 can operate using power from firstrechargeable energy source 70. According to the various exemplary embodiments ofsystem 10, firstrechargeable energy source 70 can be charged or powered by secondprime mover 50,APU 80 or another suitable source (e.g., the vehicle alternator, the power grid, etc.). -
Optional APU 80 can be used to power firstrechargeable energy source 70 when the vehicle is driving up a grade, as well as other situations. This use is intended to improve vehicle performance, particularly when the power requirements of the vehicle exceed the power available from firstprime mover 20, firstrechargeable energy source 70, and secondrechargeable energy source 90. The presence ofAPU 80 is intended to allow for a smaller firstprime mover 20. In one embodiment,APU 80 is of a type that produces lower emissions than firstprime mover 20.APU 80 is intended to enable avehicle using system 10 to meet various anti-idle and emission regulations. - In one embodiment,
system 10 is configured to automatically engageAPU 80 or firstprime mover 20 throughcomponent 40 oraccessory 60 to charge firstrechargeable energy source 70 when the stored energy decreases to a certain amount. The permissible reduction in stored energy can be determined based upon a user selectable switch. The switch specifies the method of recharging firstrechargeable energy source 70 from an external power grid. - In one embodiment, a user can select between 220-240V recharging, 110-120V recharging, and no external power source available for recharging. For the different voltages, the amount of power that can be replenished over a certain period of time (e.g., when connected to an external power grid overnight) would be calculated. Beyond that amount of power usage, first
prime mover 20, orAPU 80 is engaged to charge or provide power to firstrechargeable energy source 70. If no external power source is available, firstprime mover 20 orAPU 80 can be automatically engaged during regular finite periods, calculated to minimize idle time. In one embodiment,APU 80 and/or optionally firstrechargeable energy source 70 can provide power to anexternal power grid 200, also known as vehicle to grid (V2G) power sharing. This is intended to provide low-emission power generation and/or reduce requirements to generate additional grid power during peak loads on the grid. - In another embodiment, a user may only select between two settings, one setting to select charging using a grid and the other setting to select charging without using an external power grid. The controller would monitor state of charge of the batteries and control recharging differently for each setting. If no external charging from a power grid is selected,
system 10 may allow the state of charge of first rechargeable energy source 70 (batteries) to drop to a threshold (as an example 30%), then the controller would cause either firstprime mover 20 or theoptional APU 80 to be engaged to charge batteries to a predetermined level (as an example 80%) to minimize the frequency that firstprime mover 20 orAPU 80 must be started. Or different levels of discharge and recharging may be selected to minimize idle time.System 10 may occasionally recharge batteries to 100% of charge to help condition the batteries. If the user selectable switch indicatedsystem 10 would be charged from an external power grid, the controller may allow the state of charge of first renewable energy source to drop to a threshold (as an example 30%), then the controller would cause either firstprime mover 20 oroptional APU 80 to be engaged to charge batteries to a predetermined level that is lower (as an example 50%). The lower level allows the external power grid to recharge a greater amount of firstrechargeable energy source 70 when vehicle can be plugged in or charged by the external power grid, reducing the fuel consumption ofprime mover 70 oroptional APU 80. -
External power grid 200 allows firstrechargeable energy source 70 to be recharged with a cleaner, lower cost power compared to recharging firstrechargeable energy source 70 with firstprime mover 20. Power from an external power grid may be provided at a fraction of the cost of power provided from an internal combustion engine using diesel fuel. According to one exemplary embodiment, firstrechargeable energy source 70 can be recharged from anexternal power grid 200 in approximately 8 hours or less. - In one embodiment, second
rechargeable energy source 90 is utilized, and provides power toaccessory 60. Additional or alternative power can be provided to driveshaft 32 byaccessory 60. For example,accessory 60 can provide power to driveshaft 32 until secondrechargeable energy source 90 is discharged. Alternatively,accessory 60 can provide additional power to driveshaft 32 during vehicle acceleration.Accessory 60 provides power to driveshaft 32 through secondprime mover 50,component 40, andtransmission 30. The combination of power provided to driveshaft 32 by secondprime mover 50 andaccessory 60 is intended to allow for the use of a smaller firstprime mover 20 which provides the best use of stored energy and reduces the overall system mass. In another embodiment,accessory 60 only receives power from secondprime mover 50 or from firstprime mover 20 through component and does not provide power to driveshaft 32.Accessory 60 maypower equipment 100 directly. - In one exemplary embodiment, an optional clutch can be coupled between first
prime mover 50 andaccessory 60 or betweencomponent 40 and secondprime mover 50. The clutch is disengaged when the vehicle is stationary so secondprime mover 50 can turnaccessory 60 without unnecessarily drivingcomponent 40. - A variety of control systems can be utilized to control the various components (clutches, motors, transmissions, etc.) in
system 10. Electronic control systems, mechanical control systems, and hydraulic control systems can be utilized. In addition, a controller can be provided to indicate a request to operate an accessory or other equipment. In one embodiment, a controller similar to the controller in U.S. Pat. No. 7,104,920 incorporated herein by reference can be utilized. Preferably, the controller is modified to communicate by pneumatics (e.g., air), a wireless channel, or fiber optics (e.g., light) for boom applications and other applications where conductivity of the appliance is an issue. - The control system can utilize various input criteria to determine and direct the amount of power required or to be stored, the input criteria can input operator brake and acceleration pedals, accessory requirements, storage capacity, torque requirements, hydraulic pressure, vehicle speed, etc.
- A control system may control the torque and power output of second
prime mover 50 andaccessory 60 so thatcomponent 40, secondprime mover 50 andaccessory 60 are operated within the allowable torque and power limitations of each item so that the sum of secondprime mover 50 andaccessory 60 do not exceedcomponent 40 or exceed capacity oftransmission 30, such as capacity of transmission power takeoff drive gear rating or exceed capacity of transmission maximum turbine torque on an automatic transmission. Optionally the controller may monitor and control additional input torque from the prime mover, or input torque of the prime mover after multiplication by the torque converter, along with that from other prime movers or accessories to ensure that the turbine torque limit is not exceeded or other internal torque ratings of components within an automatic transmission or an autoshift manual transmission, or a manual transmission. The torque and power output of secondprime mover 50 andaccessory 60 may also be controlled using an input from the driver and/or from a power train control system. If two components are used as described in other embodiments, the torque and power output of the second and third prime mover and optional accessory or accessories may be controlled so that the transmission power takeoff drive gear rating with two power takeoffs is not exceeded or that the capacity of transmission maximum turbine torque on an automatic transmission, or other toque rating of an internal component within a transmission of different kind, such as an autoshift manual or manual transmission is not exceeded. - According to other exemplary embodiments, a control system may be used for other purposes (e.g.,
coupling component 40 totransmission 30; monitoring the charge status of firstrechargeable energy source 70 and secondrechargeable energy source 90; monitoring and managing the thermal status of various components (e.g., prime movers, rechargeable energy sources, electronics, etc.); operating firstprime mover 20, secondprime mover 50, andaccessory 60 to replenish energy in firstrechargeable energy source 70 and secondrechargeable energy source 90 and/or supply power toequipment 100; operateAPU 80 as needed; or control other functions). Information on the status of the system, such as operating efficiency, status of rechargeable energy sources, and certain operator controls may be displayed or accessed by the driver. - Referring to
FIG. 2 , an exemplary operation ofsystem 10 is shown.Component 40 is disengaged fromtransmission 30.APU 80 charges or provides power to firstrechargeable energy source 70 when necessary.APU 80 can include a generator powered by an internal combustion engine. The generator can be connected to firstrechargeable energy source 70 through a power converter, AC/DC power inverter or other charging system. Firstrechargeable energy source 70 provides power to secondprime mover 50. The operation of secondprime mover 50 operatesaccessory 60.Accessory 60 provides power to on-board orexternal equipment 100. Firstrechargeable energy source 70 and/orAPU 80 may provide all the power forsystem 10 when the vehicle is stationary and firstprime mover 20 is turned off (e.g., in an idle reduction system). If secondprime mover 50 is not coupled to driveshaft 32 and instead provides power to accessory 60 (e.g., in an idle reduction system),system 10 may include a simplified control and power management system. - According to another exemplary embodiment,
component 40 may be mechanically coupled to and firstprime mover 20 may be operated periodically to provide power to secondprime mover 50 throughtransmission 30 andcomponent 40. Secondprime mover 50 recharges firstrechargeable energy source 70 and/orpowers accessory 60.Accessory 60 can recharge secondrechargeable energy source 90 or operate other equipment. - According to another exemplary embodiment,
system 10 is configured as an idle reduction system that can provide power to vehicle loads such as HVAC, computers, entertainment systems, and equipment without the need to idle the engine continuously. Accordingly,system 10 uses an electric motor (e.g., prime mover 50) to power a hydraulic pump (e.g., accessory 60) for the operation of hydraulic equipment (e.g., aerial buckets, hydraulically powered compressors, etc.). Alternatively, the electric motor may directly power a compressor. The electric motor can be configured to only operate when there is a demand for hydraulic flow or the need to operate other mechanically coupled equipment to conserve energy within firstrechargeable energy source 70. The electric motor can be activated by a controller that receives a signal sent through fiber optics or a signal sent through other means. - In one embodiment,
mover 20 is not engaged withcomponent 40 whenmover 50 is used to power a pump or other mechanically coupledequipment 100. While component 40 (PTO) is not engaged, the PTO may be modified to allowshaft 32 to spin with low resistance. A PTO can be chosen with a feature that normally limits movement of the PTO when not engaged, this feature can be disabled when the electric motor is used to power the hydraulic pump. This concept also applies to “operating mode” for hybrid system process discussed below with reference toFIGS. 3 and 4 . This type of idle reduction can be used when the vehicle is stationary. - Batteries (e.g., rechargeable energy source 70) provide energy for the electric motor. After the batteries are depleted, an external power grid is used to recharge the batteries.
- If the rechargeable energy reserve is large enough, the electric motor (mover 50) may operate continuously, eliminating the need for a controller to turn motor on and off based upon demand. Such a system may be coupled to a variable volume displacement pump to reduce flow when demand for hydraulic flow is low, resulting in lower consumption of power from the rechargeable energy source. This same method of continuous operation can also be used for hybrid system configurations.
- Depending upon the battery system, the batteries may be thermally corrected during charging. Thermal correction may be needed if the temperature of the battery exceeds a certain threshold. A cooling system, either external to the vehicle or internal to the vehicle may be used, such that coolant is circulated to reduce heat or the battery case can be ventilated with cooler air to dissipate heat, possibly with a powered ventilation system. A second pump may also be connected to a PTO (as shown in
FIG. 9 ). Firstprime mover 20 may be started and used to recharge by engagingcomponent 40 to transmission and operating secondprime mover 50 as a generator to recharge first rechargeable energy source batteries. If there is insufficient energy to operate the electric motor driven hydraulic pump, the vehicle engine is started, PTO engaged and the second pump is used to power the equipment. Further, the second pump can be used when the hydraulic power requirements exceed the power output of the electric motor coupled to the hydraulic pump. Alternatively,prime mover 50 could directly power the first accessory (hydraulic pump) and the second prime mover could be made not to operate as a generator. Not operating second prime mover as a generator may reduce system complexity and reduce cost. - In another embodiment, first
rechargeable energy source 70 provides power to electrical systems of the vehicle such as “hotel loads” (e.g., HVAC, lighting, radio, various electronics, etc.). In yet another embodiment, firstrechargeable energy source 70 charges a main crank battery of the vehicle. The main crank battery can be isolated fromsystem 10. Firstrechargeable energy source 70 may also be used in other configurations that use 100% electric propulsion for certain periods to power additional vehicle systems such as power steering, brakes and other systems normally powered by firstprime mover 20. - In yet another embodiment, second
prime mover 50 provides power to external devices directly or through an additional rechargeable energy source and an associated inverter. Utilizing secondprime mover 50 to power external devices is intended to lessen the need for an additional firstprime mover 20 powered generator. - In yet another embodiment, a sophisticated control system (e.g., a pump control system utilizing fiber optics, etc.) can be used to control the operation of
accessory 60. In yet another embodiment,accessory 60 is a variable volume displacement pump.Accessory 60 can operate continuously, only providing flow if there is a demand. When no demand is present,accessory 60 provides little or no additional friction or resistance within the system. - Referring to
FIG. 3 , another exemplary operation ofsystem 10 is shown. Firstrechargeable energy source 70 and/orAPU 80 may provide power forsystem 10 when the vehicle is stationary and firstprime mover 20 is turned off (e.g., in an idle reduction system). For example, as shown inFIG. 3 ,energy source 70 may poweraccessory 60. In one embodiment, secondrechargeable energy source 90 is utilized.Accessory 60 stores energy in secondrechargeable energy source 90, as shown. Secondprime mover 50 is engaged to operate accessory 60 (e.g., a hydraulic pump) when the stored energy in second rechargeable energy source 90 (e.g., a hydraulic accumulator) is reduced to a predetermined level. The utilization of secondrechargeable energy source 90 is intended to reduce operation time ofaccessory 60.Accessory 60 only needs to operate to maintain energy in secondrechargeable energy source 90. On-board or external equipment 100 (e.g., any hydraulic equipment) is powered by secondrechargeable energy source 90. In one embodiment, a clutch mechanism is used to disengageaccessory 60 from secondprime mover 50 during vehicle travel when secondrechargeable energy source 90 has been fully charged. This is intended to reduce friction onsystem 10 when secondprime mover 50 is needed, butaccessory 60 is not. Secondrechargeable energy source 90 can provide hydraulic power toequipment 100 at a constant system pressure through a pressure reducing valve. - Alternatively, second
rechargeable energy source 90 and two hydraulic motor/pump units are coupled together to provide constant system pressure and flow. The first unit (e.g., a hydraulic motor) receives high pressure flow from secondrechargeable energy source 90. The first unit is coupled to a second unit (e.g., a pump) which supplies hydraulic power toequipment 100 at a lower pressure. Both hydraulic second rechargeable hydraulic circuit and low pressure hydraulic equipment circuit have a high pressure and a low pressure (reservoir or tank) sections. A control system may be utilized to maintain constant flow in the low pressure hydraulic equipment circuit as the high pressure flow from the second rechargeable source (accumulator) reduces or varies. The advantage of this configuration is that the energy from the high pressure accumulator is more efficiently transferred to the equipment. This configuration also allows independent hydraulic circuits to be used for the propulsion system and forequipment 100. The independent hydraulic circuits allow for fluids with different characteristics to be used in each circuit. Further, a hydraulic circuit that may be susceptible to contamination (e.g., the equipment circuit) can be kept separate from the other hydraulic circuit (e.g., the propulsion circuit). - In another embodiment, second
rechargeable energy source 90 is utilized, andaccessory 60 is a hydraulic pump. Secondrechargeable energy source 90 can include a low pressure fluid reservoir and a hydraulic accumulator. The utilization of secondrechargeable energy source 90 obviates the need for a sophisticated pump control system and the associated fiber optics; instead a simpler hydraulic system can be used (e.g., an insulated aerial device with a closed center hydraulic system and a conventional control system, etc.). If the speed ofaccessory 60 slows due to depletion of on-board power sources,accessory 60 can operate longer to maintain energy in secondrechargeable energy source 90. This is intended to minimize any negative effects on the operation ofequipment 100. According to one exemplary embodiment, secondprime mover 50 is an AC motor and turns at generally a constant rate regardless of the output volume of accessory 60 (e.g., to create two or more different levels of flow from accessory 60). - However, in some scenarios, second
prime mover 50 may provide power toaccessory 60 and the speed of secondprime mover 50 may be varied by a controller. For example, the speed of secondprime mover 50 may be varied to reduce the flow of fluid from accessory 60 (e.g., for two speed operation of an aerial device where lower hydraulic flow may be desirable for fine movement of the boom). - In one embodiment,
system 10 can provide the advantage of allowing a vehicle to operate at a work site with fewer emissions and engine noise by using an operating mode. In an operating mode (as shown inFIGS. 3 and 4 ), first prime mover 20 (e.g., an internal combustion engine, such as a diesel fueled engine, etc.) is turned off and component 40 (PTO) is disengaged fromtransmission 30, andcomponent 40 when disengaged is able to spin freely with little resistance, and power from firstrenewable energy source 70 and secondrenewable energy source 90 are used to operate on-board orexternal equipment 100 and electrical systems of the vehicle such as “hotel loads” (e.g., HVAC, lighting, radio, various electronics, etc.). According to another exemplary embodiment, secondrenewable energy source 90 may be optional and firstrenewable energy source 70 may directly power toequipment 100. According to one exemplary embodiment, firstrenewable energy source 70 has a capacity of approximately 35 kWh and is configured to provide enough power to operate the vehicle for a full day or normal operation (e.g., 8 hours). - Referring to
FIG. 4 , yet another exemplary operation ofsystem 10 is shown. WhenAPU 80 is out of fuel,APU 80 is not used, orAPU 80 is not present, firstrechargeable energy source 70 can be recharged by other components of system 10 (in addition to other methods). Firstprime mover 20 and secondprime mover 50 are preferably operated and synchronized to the same speed (e.g., input and output mechanical communication throughcomponent 40 is a one to one ratio).Component 40 is preferably engaged totransmission 30. Firstprime mover 20 provides power to secondprime mover 50 throughtransmission 30 andcomponent 40. Adjustments to secondprime mover 50 speed is made if the ratio between firstprime mover 20 and secondprime mover 50 is not one to one to minimize wear of the clutch incomponent 40 or to speed of firstprime mover 50. Operation of secondprime mover 50 recharges firstrechargeable energy source 70 to a predetermined level of stored energy. This method of recharging firstrechargeable energy source 70 is intended to allow continuous system operation in the field without the use of external grid power. This method is further intended to allow continuous operation ofequipment 100 during recharging of firstrechargeable energy source 70. - While charging first
rechargeable energy source 70, secondprime mover 50 simultaneously operatesaccessory 60.Accessory 60 provides power to on-board orexternal equipment 100. After firstrechargeable energy source 70 has been recharged,component 40 is disengaged fromtransmission 30. Operation ofaccessory 60 can continue without the use of firstprime mover 20 as shown inFIG. 2 . Alternatively, withcomponent 40 engaged, operation ofaccessory 60 can continue powered in part or in full byprime mover 20. This may be useful for example, if there is a failure in one of the other components that powersaccessory 60. This may also be useful if the power demand fromaccessory 60 exceeds the power available from secondprime mover 50. According to one exemplary embodiment, firstprime mover 20 provides supplementary power to or all of the power to equipment 100 (e.g. a digger derrick that may require higher hydraulic flow during digging operations). Using firstprime mover 20 to provide supplementary power toequipment 100 during intermittent periods of high power requirement allowssystem 10 to include a smaller secondprime mover 50 that is able to provide enough power for the majority of the equipment operation. The control system may receive a signal from the equipment indicating additional power is required beyond that provided by secondprime mover 50. Such a signal may be triggered by the operator, by activation of a function (e.g., an auger release, etc.), by demand in the circuit or component above a predetermined threshold, or by other means. - Referring to
FIG. 5 , yet another exemplary operation ofsystem 10 is shown. Secondrechargeable energy source 90 is utilized.Accessory 60 provides power to secondrechargeable energy source 90. In one embodiment, on-board or external equipment 100 (e.g., hydraulic cylinders, valves, booms, etc.) is coupled to secondrechargeable energy source 90, and can be powered by secondrechargeable energy source 90.External equipment 100 may also be operated directly byaccessory 60 without the use of a secondrechargeable energy source 90. This method of recharging firstrechargeable energy source 70 and secondrechargeable energy source 90 is intended to allow continuous system operation in the field without the use of external grid power. This method is further intended to allow continuous operation ofequipment 100 during recharging of firstrechargeable energy source 70 and secondrechargeable energy source 90. - Referring to
FIG. 6 , yet another exemplary operation ofsystem 10 is shown. In one embodiment, a second embodiment of the hybrid vehicle drive system, system 610 including a clutch 165 or other mechanism is used to disengage firstprime mover 20 fromtransmission 30 during vehicle braking. This is intended to maximize the regenerative energy available from vehicle braking. The forward momentum of the vehicle provides power fromwheels 33 totransmission 30.Transmission 30 may be reduced to a lower gear to increase the RPMs and increase the amount of energy transferred to secondprime mover 50. Secondprime mover 50 can operate to charge firstrechargeable energy source 70 and help slow the vehicle according to principles of regenerative braking Disengaging firstprime mover 20 fromtransmission 30 further reduces the amount of energy transferred back to firstprime mover 20 during braking and reduces the need for engine braking. The control system for the hybrid components may also monitor chassis anti-lock brake system (ABS) activity. If the chassis anti-lock brake system has sensed possible wheel lock-up and has become active, possibly due to low traction or slippery road conditions, then hybrid regenerative braking is suspended by the hybrid control system. The regenerative braking system may be disabled as soon as ABS is active and may remain off for only as long as the ABS is active, or alternatively regenerative braking may remain off for a period of time after ABS is no longer active or regenerative braking may remain off for the remainder of the ignition cycle to eliminate the chance that regenerative braking could adversely affect vehicle handling in low friction, slippery road conditions during the current ignition cycle. At the next ignition cycle, regenerative braking may be reactivated. - Referring to
FIG. 7 , yet another exemplary operation ofsystem 10 is shown. Secondrechargeable energy source 90 is utilized. As mentioned above, during vehicle braking, firstrechargeable energy source 70 is charged through operation of secondprime mover 50.Accessory 60 can operate to further slow the vehicle, and store energy in secondrechargeable energy source 90, if secondrechargeable energy source 90 is not fully charged. In this manner, regenerative braking can be used to simultaneously charge multiple energy storage devices ofsystem 10. This is intended to allow recharging of both energy storage devices through braking during vehicle travel, among other advantages. A clutch can be optionally included between firstprime mover 20 andtransmission 30 to further improve regenerative braking - Referring to
FIG. 8 , in a third exemplary embodiment of a hybrid vehicle system,system 810,component 40 is a transfer case.Component 40 is coupled totransmission 30,drive shaft 32, and secondprime mover 50. Energy from regenerative braking bypassestransmission 30, passing throughcomponent 40 to operate secondprime mover 50. Similarly, motive power fordrive shaft 32 from secondprime mover 50 andaccessory 60bypasses transmission 30, passing throughcomponent 40.Component 40 further allows power from secondprime mover 50 to be transferred to driveshaft 32, assisting, for example, when the vehicle is accelerating. A conventional clutch can be placed betweendrive shaft 32 andcomponent 40 to disconnectdrive shaft 32 when the vehicle is parked and to allow secondprime mover 50 to charge firstrechargeable energy source 70 whentransmission 30 is coupled tocomponent 40 and firstprime mover 20 is coupled totransmission 30. An optional clutch can also be placed betweencomponent 40 andtransmission 30 or betweentransmission 30 and firstprime mover 20. This allows power from regenerative braking to be channeled directly to secondprime mover 50 andaccessory 60. - In one embodiment, during operation of
equipment 100,component 40 is not coupled to secondprime mover 50 andaccessory 60 can optionally directlypower equipment 100. Anoptional APU 80 can charge firstrechargeable energy source 70 and/or secondrechargeable energy source 90 as required. - Referring to
FIG. 9 , in fourth exemplary embodiment of a hybrid vehicle drive system, asystem 910, asecond component 110 such as a power take-off (PTO) is coupled to thetransmission 30.Accessory 60 may be a hydraulic pump with the capability to produce more power than a single power take-off can transfer totransmission 30.First component 40 andsecond component 110 are provided to cooperate to transfer more power from secondrechargeable energy source 90 totransmission 30 than a single component is able to transfer.System 10 further includes a third prime mover 120 (e.g., a motor, such as an electric motor/generator, etc.), and a second accessory 130 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.).Transmission 30 is mechanically coupled tocomponents Second component 110 is coupled to thirdprime mover 120. Thirdprime mover 120 is coupled tosecond accessory 130. Firstrechargeable energy source 70 is coupled to thirdprime mover 120 and provides power for the operation of thirdprime mover 120. Secondrechargeable energy source 90 is coupled tosecond accessory 130 and provides stored power forsecond accessory 130. WhileFIG. 9 showssystem 910 with both thirdprime mover 120 andsecond accessory 130 coupled tosecond component 110, according to other exemplary embodiments, either thirdprime mover 120 orsecond accessory 130 may be absent. If a clutch is provided between firstprime mover 20 andtransmission 30,first component 40 andsecond component 110 may be configured to drivetransmission 30, possibly without assistance fromprime mover 20 or whenprime mover 20 is off. At slow speeds, iftransmission 30 includes a torque converter which is not locked, the optional clutch may not be needed forcomponents transmission 30 and move the vehicle. - In an alternative embodiment of
system 910 inFIG. 9 , an external power grid can be used with an electrical rechargeable energy source. Battery size and system software can be modified to charge the battery in the electric grid. For example, the software can be modified to use a charge depleting mode if the battery is charged from the grid. - Referring to
FIG. 10 , in a fifth exemplary embodiment of vehicle hybrid drive system,system 1010, a high horsepower prime mover 140 (e.g., a motor such as a high output power hydraulic motor, etc.) is coupled tosecond component 110. High horsepowerprime mover 140 is further coupled to second rechargeable energy source 90 (e.g., one or more accumulators). Secondrechargeable energy source 90 is pressurized byaccessory 60 during highway speeds or while parked. - In one embodiment, high horsepower
prime mover 140 receives power from a PTO to pressurize secondrechargeable energy source 90 during regenerative braking Conversely,mover 140 can aid acceleration of the vehicle throughcomponent 110 andtransmission 30. A clutch can be disposed between firstprime mover 20 andtransmission 30 for more efficient regenerative braking. The embodiment ofsystem 1010 shown inFIG. 10 may include a system including secondrechargeable energy source 90 and two hydraulic motor/pump units that is configured to provide constant system pressure and flow similar to the system described above. The first unit or high pressure motor is provided by high HPprime mover 140. The second unit or low pressure pump (e.g., a variable displacement pump pressure compensated load sensing pump) may be provided between high HPprime mover 140 andsecond component 110 preferably with a through shaft or other means of mechanical communication. The equipment circuit can trigger operation of high HPprime mover 140. - Referring to
FIG. 11 , in a sixth exemplary embodiment of a hybrid vehicle drive system,system 1110, a high powerprime mover 140 is coupled tosecond component 110. High horsepowerprime mover 140 is further coupled to an ultra capacitor 150 (e.g., a fast charge and discharge capacitor, etc.) which may include multiple capacitors.Capacitor 150 is in turn coupled to firstrechargeable energy source 70. Firstrechargeable energy source 70 is charged by secondprime mover 50 during highway speeds or while parked, byauxiliary power unit 80 or by being plugged into the electrical power grid. High HPprime mover 140 may also independently recharge firstrechargeable energy source 70. In an optional charging scheme,APU 80 is optional. - Referring to
FIG. 12 , in a seventh exemplary embodiment of a hybrid vehicle drive system,system 1210, a second accessory 130 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.) and a high horsepower prime mover 140 (e.g., a motor such as a high power electric motor, etc.) are coupled to first prime mover 20 (e.g., to the crankshaft of an internal combustion engine, such as a diesel fueled engine, etc.).Second accessory 130 and high horsepowerprime mover 140 allow large amount of power to be transmitted to firstprime mover 20. Firstrechargeable energy source 70 is coupled to high horsepowerprime mover 140 viacapacitor 150 and provides power for the operation of high horsepowerprime mover 140. Secondrechargeable energy source 90 is coupled tosecond accessory 130 and provides stored power forsecond accessory 130. High horsepowerprime mover 140 may further be used to assist in cranking firstprime mover 20. Cranking firstprime mover 20 may be particularly advantageous when firstprime mover 20 is started and stopped frequently (e.g., to reduce idle time). High horsepowerprime mover 140 may further be a more powerful starter motor. WhileFIG. 9 shows asystem 10 with bothsecond accessory 130 coupled tosecond component 110 and high horsepowerprime mover 140, according to other exemplary embodiments, eithersecond accessory 130 may be absent or horsepowerprime mover 140 may be absent. - Referring to
FIG. 13 , in an eighth exemplary embodiment of a vehicle hybrid drive system,system 1310, includes a first prime mover 20 (e.g., an internal combustion engine, such as a diesel fueled engine, etc.), a first prime mover driventransmission 30, a component 40 (e.g., a power take-off (PTO), a transfer case, etc.), a second prime mover 50 (e.g., a motor, such as an electric motor/generator, a hydraulic pump with a thru-shaft, a hydraulic pump without a thru-shaft with secondprime mover 50 only connected on one side etc.), and an accessory 60 (e.g., a hydraulic pump, such as a variable volume displacement pump, a hydraulic pump with a thru-shaft etc.).Transmission 30 is mechanically coupled tocomponent 40.Component 40 is coupled toaccessory 60.Accessory 60 is coupled to secondprime mover 50. - According to one exemplary embodiment,
accessory 60 is a hydraulic pump with a thru-shaft. Coupling the accessory 60 to thecomponent 40 provides several advantages. Hydraulic pumps with thru-shafts are more common and generally less expensive than thru-shaft motors. Further,accessory 60 is generally smaller than secondprime mover 50 and allows for a more compact package when coupled tocomponent 40. - Second
rechargeable energy source 90 is coupled toaccessory 60 and provides stored power foraccessory 60.Accessory 60 stores energy in secondrechargeable energy source 90 during the operation of system 10 (e.g., during cruising or during regenerative braking, etc.).Accessory 60 may draw energy from secondrechargeable energy source 90 to provide bursts of high horsepower to firstprime mover 20 until secondrechargeable energy source 90 is exhausted. In another embodiment,accessory 60 may directly power equipment and secondrechargeable energy source 90 may be absent. - Referring to
FIG. 14 , in a ninth exemplary embodiment of a vehicle hybrid drive system,system 1410 may include a clutch 160 coupled tocomponent 40. As described earliercomponent 40 may be a PTO with an integral clutch to selectively disconnectcomponent 40 from firstprime mover 20. However, even when disconnected from firstprime mover 20,component 40 may still be powered by secondprime mover 50 and/oraccessory 60. The rotational inertia ofcomponent 40 along with any associated frictional losses represent power that is wasted incomponent 40.Optional clutch 160 allowscomponent 40 to be disengaged from secondprime mover 50 and/oraccessory 60.Auxiliary Power Unit 80 is optional.Accessory 60 may directly powerequipment 100.Source 90 is optional. Optional clutch 160 could be used in other configurations where it would be advantageous to completely removecomponent 40 from secondprime mover 50 oraccessory 60. - Referring to
FIG. 15 , in a tenth exemplary embodiment of a vehicle hybrid drive system,system 1510 may include a clutch 165.System 1510 as shown inFIG. 15 operates similar to the embodiment ofsystem 1010 inFIG. 10 and includes an accessory 60 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.) coupled tocomponent 40. Similar to high horsepowerprime mover 140 shown inFIG. 10 ,accessory 60 may be configured to provide a large amount of power totransmission 30 to augment firstprime mover 10. For example,accessory 60 may transfer additional power totransmission 30 to facilitate accelerating the vehicle.Accessory 60 may operate with or without an electrical motor as shown inFIG. 10 . -
Clutch 165 is coupled to firstprime mover 20 andtransmission 30.Clutch 165 is configured to selectively disengage firstprime mover 20 fromtransmission 30. The rotational inertia of firstprime mover 20 along with any associated frictional losses represent energy that is wasted in firstprime mover 20 and reduces the efficiency of regenerative braking insystem 1510. Disengaging firstprime mover 20 from the rest ofsystem 10 allows for more energy to be captured during regenerative braking - Referring to
FIG. 16 , in an eleventh exemplary embodiment,system 1610 may include both afirst component 40 such as a PTO, and asecond component 110 such as a transfer case coupled totransmission 30. Similar to the embodiment ofsystem 810 inFIG. 8 , energy from regenerative braking bypassestransmission 30, passing throughcomponent 110 to operateaccessory 60. Similarly, motive power fordrive shaft 32 fromaccessory 60bypasses transmission 30, passing through component.Component 110 further allows power fromaccessory 60 to be transferred to driveshaft 32, assisting, for example, when the vehicle is accelerating.Transmission 30 is further mechanically coupled tocomponent 40.Component 40 is coupled to secondprime mover 50. Using both a PTO and a transfer case allowssystem 1610 to benefit from better regenerative braking from drive shaft and the inclusion of a PTO to power electric motor operated hydraulic equipment. Secondprime mover 50 may provide power to asecond accessory 65 to pressurize secondrechargeable energy source 90 when the vehicle is parked or moving at a constant speed. Secondrechargeable energy source 90 provides additional power during the acceleration of the vehicle.System 1610 may optionally include a clutch between firstprime mover 20 andtransmission 30 and/or betweentransmission 30 andcomponent 110. - As shown in
FIG. 16 ,system 1610 may further include athird component 180 such as a PTO, a thirdprime mover 190, and a fourthprime mover 195. Thirdprime mover 190 is coupled tothird component 180. Thirdprime mover 190 is coupled to firstrechargeable energy source 70 configured to charge firstrechargeable energy source 70. In this way, secondprime mover 50 may draw power from firstrechargeable energy source 70 while firstrechargeable energy source 70 continues to be charged by thirdprime mover 190. Fourthprime mover 195 may be a larger starter motor and may be provided for firstprime mover 20 to assist with low speed torque and quick starts of firstprime mover 20. The large starter motor can also reduce unnecessary idle. Firstprime mover 20 may be started and stopped to reduce unnecessary idling.Mover 195,mover 190, andcomponent 180 are optional. Clutches can be placed betweenmover 20 andtransmission 30 and betweentransmission 30 andcomponent 110. The interface betweenmover 50 andaccessory 65 can be by a one way or two way interface. - Referring to
FIG. 18 , in a thirteenth exemplary embodiment of a hybrid vehicle drive system, asystem 1810 may include both afirst component 40 and asecond component 110 such as a PTO coupled totransmission 30, and athird component 210 such as multi-input/output drive coupled tofirst component 40 andsecond component 110.Third component 210 may be a hydraulic drive such as manufactured by Funk Manufacturing Co. and distributed by Deere & Company. Third component is further coupled to a secondprime mover 50. Secondprime mover 50 may be an electric motor with the capability to produce more power than a single power take-off can transfer totransmission 30.First component 40,second component 110, andthird component 210 are provided to cooperate to transfer more power from secondprime mover 50 totransmission 30 than a single component is able. - Referring to
FIG. 19 , in a fourteenth embodiment of a hybrid vehicle drive system,system 1910 may include both afirst component 40 and asecond component 110 such as a PTO coupled totransmission 30.System 1910 further includes a second prime mover 50 (e.g., a motor, such as an electric motor/generator, etc.), and a third prime mover 220 (e.g., a motor, such as an electric motor/generator, etc.), coupled tofirst component 40 and asecond component 110, respectively. A firstrechargeable energy source 70 is coupled to secondprime mover 50 and thirdprime mover 220 and provides power for the operation of secondprime mover 50 and a thirdprime mover 220. - Clutch 165 can disengage first
prime mover 20, allowing the vehicle to be driven in an all electric mode if other vehicle systems (e.g., HVAC system, braking, power steering, etc.) are also electrically driven. The all electric mode may also be possible in other system configurations (as shown inFIG. 6 ). The all electric mode saves fuel by allowing firstprime mover 20 to be off when not needed such as at low speeds or when the vehicle is stopped. - Optionally,
transmission 30 may be constructed such that independent component input/output gears are used, one for eachcomponent transmission 30 and in between input/output gears forcomponents prime mover 20, engagingclutch 165 and driving one of the component input/output gears causing either secondprime mover 50 or thirdprime mover 220 to act as a generator. In one example, the clutch intransmission 30 disengages one component input/output gear from the other component input/output gear that interfaces withprime mover 50 acting as a generator. The remaining component input/output gear is coupled to the other gears intransmission 30 that transmit power to driveshaft 32, possibly through another clutch internal to the transmission that is engaged. The remaining prime mover acts as a motor andpowers transmission 30 through the component that is mechanically coupled to the input/output gear. Such an arrangement is particularly useful when the vehicle is driven in the city. In such a situation,prime mover 20 may operate at a more efficient speed and power range, independent of vehicle speed, orprime mover 20 may be turned off completely to further reduce fuel consumption. If more power is needed, the disengaged prime mover may be synchronized in speed with the disengaged prime mover orprime movers 20 and then also coupled totransmission 30 to provide the needed additional power. The engaged prime mover or transmission can make adjustments in speed to adapt to the ratio of the input to output gearing of the component (PTO). - Alternatively, an optional APU could charge first
rechargeable energy source 70 while firstprime mover 20 is kept off and the vehicle is operated in a series hybrid configuration in which clutch 165 is disengaged. The APU is preferably a low emissions power source using a low carbon fuel. Such a configuration would be useful in an urban area requiring low emissions. As in the all-electric mode, vehicle systems (e.g., HVAC, braking, power steering, etc.) are operated electrically when firstprime mover 20 is off and the vehicle is being driven. - Referring to
FIG. 20 , in a fifteenth embodiment of a hybrid vehicle drive system,system 2010 may be similar to the embodiment shown inFIG. 1 . However, second prime mover 50 (e.g., a motor, such as an electric motor/generator, etc.) may provide more power than necessary to drive accessory 60 (e.g., a hydraulic pump, such as a variable volume displacement pump, etc.). Therefore, a thirdprime mover 230 such as a smaller electric motor/generator is provided. Thirdprime mover 230 is coupled to firstrechargeable energy source 70 and provides power toaccessory 60. According to one exemplary embodiment, thirdprime mover 230 is a 10-60 hp electric motor, more preferably a 20-40 hp electric motor. - Referring to
FIG. 21 , in a sixteenth exemplary embodiment of a hybrid vehicle drive system, asystem 2110 may be similar to the embodiment shown inFIG. 1 system 101. However, a fourthprime mover 240 may be coupled to firstprime mover 20 with a clutch 245 (e.g., to the crankshaft of the internal combustion engine). The coupling may be direct to the crankshaft or through a belt or through a shaft. Fourthprime mover 240 may be, for example, an electric motor that provides power to one ormore accessories 250 such as a cooling fan for firstprime mover 20, power steering pumps, an HVAC system, brakes, etc. Alternatively, it may be an integrated starter generator, optionally capable of regenerative braking -
System 2110 as shown inFIG. 21 , is able to function in several modes, depending on the needs of the vehicle.System 10 can be configured as a combination series/parallel hybrid. For example, in an all electric mode, firstprime mover 20 may be turned off and clutch 165, disengagedprime movers wheels 33.Movers movers prime movers transmission 30 to drivewheels 33. If the vehicle requires more power to driveshaft 32, firstprime mover 20 may be turned on. The speed of the output from firstprime mover 20 is synchronized to the desired RPMs.Clutch 165 is engaged to couple firstprime mover 20 totransmission 30 in addition toprime movers shaft 32, clutch 245 may be engaged so that fourthprime mover 240 provides additional power to crankshaft of firstprime mover 20. Fourthprime mover 240 may simultaneously provide power to one ormore accessories 250. Usingprime movers power driving wheels 33 allows a smaller, more efficient firstprime mover 20 to be used insystem 2110. - Fourth
prime mover 240 can driveaccessories 240 via belts and/or pulleys and/or shafts and/or gears can be mechanically coupled to firstprime mover 20 throughclutch 245 via belts, shafts, gears and/or pulleys.Prime mover 240 can be an electric motor with a through shaft. The through shaft can drive belts and/or pulleys for accessories (e.g., HVAC, fan, steering, pumps, brakes, etc.)Clutch 165 may be integrated with the transmission (as in a manual transmission or in an auto-shift transmission). In an automatic transmission utilizing a torque converter, clutch 165 may be in between the torque converter and the ICE or integrated into the transmission and placed between the torque converter and the input gear for the PTO (for those transmissions that utilize a PTO input gear independent of the torque converter). The integration and/or location of clutch 165 as described may be used for other embodiments shown in other diagrams in which a clutch can be placed in between the ICE and the transmission. - If first
prime mover 20 is a relatively small internal combustion engine, it may not be able to provide all the power to drive wheels and regeneraterechargeable energy source 70. In such a case, clutch 165 is disengaged and clutch 245 is engaged so that firstprime mover 20 only drivesaccessories 250 and thirdprime mover 240 which, in turn, acts as a generator to chargerechargeable energy source 70.Prime movers wheels 33. This arrangement allows firstprime mover 20 operate in a more efficient zone.Clutch 245 may disconnect firstprime mover 20 from fourthprime mover 240 and fourthprime mover 240 may provide power foraccessories 250. To keep the engine block warm when firstprime mover 20 is turned off, engine coolant may be circulated through a heating element (not shown). The ICE can then be turned off to eliminate fuel consumption and reduce emissions if first rechargeable energy source has enough energy to power other prime movers. As with all hybrid mechanizations described, a control system would assess various inputs to the system and adjust output of various devices, for example monitoring factors such as, energy levels, power demand, torque, control inputs, speeds, temperatures and other factors to determine appropriate operation of prime movers, activation of clutches and other devices for optimal efficiency and performance. The heated coolant would then be circulated back to firstprime mover 20. The heated coolant may also be used to warmrechargeable energy source 70 or other on-board batteries when the ambient air is cold. The warmer for the engine block and/or batteries could be used on other embodiments. -
System 2110 as illustrated inFIG. 21 advantageously can utilize a parallel hybrid configuration with assist from fourth prime mover 240 (e.g., accessory electric motor), first prime mover 20 (ICE), secondprime mover 50, and thirdprime mover 220. The parallel nature ofsystem 2110 allows maximum acceleration as power can be utilized from multiple sources. As discussed above,transmission 30 can include a clutch (e.g. internal or external clutch 165). To reduce clutch wear,components prime mover 20 totransmission 30. This method can also be used for other embodiments in which a clutch is used to engage the prime mover with the transmission. - Alternatively,
system 2110 inFIG. 21 can be provided as only a single PTO system. The use of two PTOs allows more power to be provided totransmission 30. - Accordingly to another embodiment,
system 2110 ofFIG. 21 can be arranged so that a parallel hybrid configuration is assisted frommover 220 andmover 50 during acceleration. In an electric only acceleration mode, power can be provided throughcomponents motors prime mover 20 off. - Fourth
prime mover 240 can be a multitude of electric motors for powering individual accessories.Clutch 245 andmover 240 can be connected to the front or other locations ofprime mover 20 and could be used in other configurations with reference toFIGS. 1-20 . Advantageously, electric only acceleration can use standard drive train components and does not produce emissions. The use ofprime mover 240 powered throughsource 70 formovers - According to another embodiment,
system 2110 as illustrated inFIG. 21 can also be configured to provide series electric only acceleration.Mover 20 is used to charge first rechargeable energy source 70 (e.g., batteries) and is not directly coupled totransmission 30 or is disconnected fromtransmission 30 viaclutch 165.Mover 240 provides power toaccessories 250. Advantageously,mover 20 can be configured to operate at most efficient RPM and load. Preferably,motor 240, has a thru-shaft and can act as a generator whilemover 20 powers accessories. Such a system would have advantages in stop and go type applications where electric motors can store energy during braking and accelerate vehicle without having to change the operating RPM ofmover 20. - According to another embodiment,
system 2110 as illustrated inFIG. 21 can also be operated in an ICE only cruise mode. During steady driving (such as highway driving), ICE prime mover (e.g., mover 20) may provide all of the power and electric motors (e.g.,movers 220 and 50) may be uncoupled (disconnected via clutches) from the drive train to reduce unnecessary friction and parasitic loads. Such mode provides best constant power at cruising speeds. In such a mode,mover 20 can be directly coupled or coupled throughclutch 165 totransmission 30 to provide best efficiency when mover 20 (ICE) can operate at a steady state and in an efficient RPM and load range. All unnecessary hybrid components can be disconnected during ICE only cruise mode, as well as any unnecessary loads. When accelerating or braking, electric motors (or hydraulic motors) may be temporarily engaged to provide additional propulsion or capture brake energy for reuse resulting in higher operating efficiency and lower fuel consumption. - According to yet another embodiment,
system 2110 as illustrated inFIG. 21 can also be provided in a mode in which highway speed is maintained bymover 20 and hybrid components are temporarily engaged to accelerate or slow the vehicle. An ICE (mover 20) can be used for base cruise power and one or more electric or hydraulic motors are engaged as needed for additional acceleration or to slow the vehicle. After the vehicle resumes a steady highway cruise,components 110 and 40 (e.g., PTOs) can be disengaged to remove unnecessary resistance of unneeded hybrid components. Advantageously, such a configuration allows a smaller horsepower engine to be used in optimal range for maximum efficiency and reduces large swings required in outputs from mover 20 (e.g., the engine operates less efficiently when required to provide power to provide large transient loads or when power output is much higher or lower than its optimal range). - According to an alternative embodiment,
mover 50 can include a pump or a pump can be placed in betweenmover 50 andfirst component 40. In another alternative, the hydraulic pump could be placed after or behindmover 50. In this embodiment, power fromsource 70 can be utilized to drive pump for hydrauliccomponents using mover 50. Such configuration would be advantageous when the vehicle is stationary as power from the batteries (e.g., source 70) is utilized to operate electric motors and hydraulic pumps. - According to another embodiment,
system 2110 illustrated inFIG. 21 can be operated in a mode in whichmover 20 is operated and the rotational speed of the hydraulic pump is constant.Component 40 can be engaged so thatmover 20 drives the hydraulic pump andmover 50. If rotation ofmover 50 needs to vary due to changes in required hydraulic flow, a separate PTO can be engaged and used to recharge batteries while other electric motors can operate independently to provide power to the pump with varying rotation speed. As discussed above, the hydraulic pump can be placed betweenmover 50 andcomponent 40 or behindmover 50. In an embodiment in which a second PTO is not available, the rotational speed of the pump can be kept constant and the output of the pump can be varied to change flow to meet required hydraulic flow variations. This configuration is particularly advantageous in digger derrick applications in which the speed of the auger must be changed by adjusting flow. - Referring to
FIGS. 22-29 ,system 2110 may be similar to the embodiment shown inFIG. 21 . However, a fifthprime mover 260 with a clutch 255 may be provided between firstprime mover 20 andclutch 165. Fifthprime mover 260 may act as a motor to power the drive train or as a generator to recharge firstrechargeable energy source 70 or provide electrical power to other components ofsystem 10.System 10, as shown inFIGS. 22-29 , may advantageously operate in a variety of modes. -
FIG. 22 illustratessystem 2110 in a series mode of operation as the vehicle is accelerating. Firstprime mover 20 turns fifthprime mover 260 which charges firstrechargeable energy source 70.Clutch 165 is disengaged to decouple fifthprime mover 260 fromtransmission 30. Firstrechargeable energy source 70 provides electrical power to secondprime mover 50 and thirdprime mover 220 which drivetransmission 30 throughfirst component 40 andsecond component 110, respectively. According to other exemplary embodiments, only one of secondprime mover 50 and thirdprime mover 220 may provide power totransmission 30. -
FIG. 23 illustratessystem 2110 in a series mode of operation as the vehicle is accelerating according to another exemplary embodiment. Firstprime mover 20 turns fifthprime mover 260 which charges firstrechargeable energy source 70.Clutch 165 is disengaged to decouple fifthprime mover 260 fromtransmission 30. Firstrechargeable energy source 70 provides electrical power to secondprime mover 50 and thirdprime mover 220 which drivetransmission 30 throughfirst component 40 andsecond component 110, respectively. According to other exemplary embodiments, only one of secondprime mover 50 and thirdprime mover 220 may provide power totransmission 30.Clutch 245 is engaged so firstprime mover 20 further drives fourthprime mover 240. Fourthprime mover 240 may be used to power on-board accessories 250 and/or recharge firstrechargeable energy source 70. -
FIG. 24 illustratessystem 2110 in a parallel mode of operation as the vehicle is accelerating. Power from both firstprime mover 20 and firstrechargeable energy source 70 is used to power the drive train. Firstprime mover 20 turns fifthprime mover 260 andtransmission 30.Clutch 165 is engaged to couple fifthprime mover 260 totransmission 30. Firstrechargeable energy source 70 provides electrical power to secondprime mover 50 and thirdprime mover 220 which drivetransmission 30 throughfirst component 40 andsecond component 110, respectively. According to other exemplary embodiments, only one of secondprime mover 50 and thirdprime mover 220 may provide power totransmission 30. Firstrechargeable energy source 70 further powers fourthprime mover 240.Clutch 255 is engaged so fourthprime mover 240 is coupled to firstprime mover 20 to assist driving the drive train. To reduce clutch wear, clutch 165 may be disengaged and secondprime mover 50 and third prime mover 220 (viacomponents 40 and 110) may provide the initial power to accelerate the vehicle. This method may also reduce or eliminate the need for a torque converter. Once the input shaft is close to or the same speed as the engine drive shaft, clutch 165 is engaged to couple firstprime mover 20 andtransmission 30. -
FIG. 25 illustratessystem 2110 in a cruising mode with firstprime mover 20 providing the power to maintain a relatively constant speed for the vehicle (e.g., during highway driving). Unnecessary loads such as unused hybrid components, are disconnected. Directly coupling firstprime mover 20 to driveshaft 32 provides best efficiency when firstprime mover 20 can operate at a steady state in an efficient rpm and load range. - As shown in
FIG. 26 , hybrid components ofsystem 2110 may be temporarily engaged when vehicle is in a cruising mode (FIG. 25 ) to slow or accelerate the vehicle. Firstrechargeable energy source 70 may provide additional power to the drive train through one or more prime movers to accelerate the vehicle. After vehicle resumes a steady highway cruise, the additional prime movers can be disengaged (e.g., by disengagingcomponents 40 and 110) to remove unnecessary resistance of unneeded hybrid components. Temporarily using hybrid components to provide additional power to the drive shaft allows a smaller horsepower engine to be used in its optimal range for maximum efficiency. Large swings in required output from the ICE are further reduced. Internal combustion engines generally operate less efficiently when required to provide large transient loads or when power output is much higher or lower than the optimal range. As alternative embodiment, additional prime movers may be engaged if needed to slow or accelerate the vehicle. For example, secondprime mover 50 can be coupled totransmission 30 throughfirst component 40 to provide additional acceleration or slow the vehicle. - To reduce idle time of the internal combustion engine, first
prime mover 20 may be turned off when the vehicle is stationary, as shown inFIG. 27 . Secondprime mover 50 is powered by firstrechargeable energy source 70 and drivesaccessory 60 andequipment 100. According to other exemplary embodiments,accessory 60 may be provided betweenfirst component 40 and second prime mover 50 (as shown inFIG. 13 ). - As shown in
FIG. 28 , firstprime mover 20 may be used to recharge firstrechargeable energy source 70. According to one exemplary embodiment,accessory 60 is a hydraulic pump. If the rotational speed of secondprime mover 50 needs to vary (e.g., to accommodate changes in required hydraulic flow),component 110 is engaged and used to recharge firstrechargeable energy source 70 through thirdprime mover 220. Secondprime mover 50, meanwhile, can operate independently to provide power toaccessory 60 with varying rotation speed. Firstrechargeable energy source 70 may further provide power to fourthprime mover 240 to drive on-board accessories 250. According to another exemplary embodiment, if the rotational speed of the hydraulic pump is constant,component 40 may be engaged so that firstprime mover 20drives accessory 60 and secondprime mover 50 without the intermediate recharging step. According to still another exemplary embodiment, rotational speed of secondprime mover 50 may be varied andcomponent 110 may be absent. The system may be charged while varying flow by keeping the rotational speed ofaccessory 60 constant while varying the output of the pump to change flow (e.g. on a digger derrick application in which the speed of the auger must be changed by adjusting flow). - As shown in
FIG. 29 , firstprime mover 20 may be used to recharge firstrechargeable energy source 70. Firstprime mover 20 turns fifthprime mover 260 which charges firstrechargeable energy source 70.Clutch 165 is disengaged to decouple fifthprime mover 260 fromtransmission 30. Secondprime mover 50, meanwhile, can operate independently to provide power toaccessory 60 with varying rotation speed. Firstrechargeable energy source 70 may further provide power to fourthprime mover 240 to drive on-board accessories 250. - According to another exemplary embodiment,
system 10 may be an idle reduction system. An idle reduction system may have a configuration similar to any previously described embodiment ofsystem 10 but is not configured to provide power back to firstprime mover 20 and drive shaft 32 (e.g., the drive train). Instead,component 40 only provides power in one direction (e.g.,component 40 does not back-drive into transmission 30). Such asystem 10 does not require additional software, calibration and control electronics that is required for the integration of a hybrid drive system. Such asystem 10 may also not require sophisticated thermal management systems and higher capacity motors and drive electronics. Such asystem 10 may include an optional secondaryrechargeable power source 90 such as an accumulator and/or anoptional APU 80 or may even include a connection to a power grid. Similar to the embodiment shown inFIG. 14 ,system 2110 may include anoptional clutch 160 betweencomponent 40 and secondprime mover 50 oraccessory 60. Ifsystem 10 does not include a secondrechargeable power source 90 such as an accumulator,system 10 may include air, wireless or fiber optic controls. Ifsystem 2110 includes a secondrechargeable power source 90, no additional control system is required (e.g., the accumulator forms a closed centered hydraulic system with hydraulic controls). - As an example, in one idle reduction configuration, a PTO with an integrated clutch is connected to a transmission and is coupled to a hydraulic motor. The hydraulic motor has a thru-shaft and is also coupled to an electric motor. The motor may be an AC motor or a DC motor. Batteries supply energy to the motor, electronics control motor speed and turn motor on and off. The PTO may be disengaged from the transmission to allow the electric motor to move the hydraulic pump. It may be necessary to modify the PTO to allow the shaft to spin freely when not engaged with the transmission. When the batteries reach a low state of charge, or the electric motor speed slows below an acceptable level due to low battery energy, the prime mover (usually a diesel or gas engine) is started. The engine rpm is adjusted so that the PTO shaft will provide the needed rotational speed for the hydraulic pump. PTO is then engaged and drives the hydraulic pump.
- The batteries can be charged through the electric motor, or through a vehicle alternator, or alternatively the batteries may remain depleted at the job-site and recharged once the vehicle returns to a location in which power from the grid can be used to recharge the batteries. If batteries remain depleted, the engine is started, PTO is engaged and hydraulic pump or other auxiliary equipment often used on a work truck at a job-site is mechanically powered by the first prime mover (ICE).
- The location to charge the vehicle may be a garage with a charging station or an ordinary plug. Using only grid power to recharge the batteries can simplify the idle reduction system. A separate vehicle monitoring system may record if the batteries are recharged at a garage overnight, or if the batteries need to be serviced or replaced. Such a system may send a signal via a link (such as cellular, satellite, or wireless local area network, or a wired connection) to a fleet management system so that fleet personnel can take action to maintain system or train vehicle operators.
- The battery system may be designed to be modular and easy for replacement battery modules to be installed. A modular, replaceable battery system can allow a vehicle to use a lower cost battery initially that has a shorter useful life and then replace it when the existing battery no longer can store sufficient energy, with the same type of battery, or a more advanced battery. A replaceable battery system may be beneficial since lower cost batteries can be used until more advanced batteries capable of more energy storage, lower mass and greater service life are available at lower costs. The battery system may have electronics integrated in a module and may include thermal management. The electronics may produce uniform input and output electrical characteristics, allowing for different battery technologies to be used, without affecting idle reduction performance. The battery may also be designed for quick replacement. Such a design could make it possible to use batteries that are charged at a base station. Batteries at a base station may provide power for a facility or to the grid when not needed for a vehicle. There may be additional electronics integrated with the battery module including monitoring circuitry to record power available, power used, how much of the battery life has been reduced (possibly based upon overall percent discharge, rate of discharge and recharge, average operating temperature, frequency of balancing various cells or frequency of achieving full state of charge). Such a system may allow for rental of a battery system or payment based upon battery usage and estimated reduction in battery useful life. This type of modular battery system can also be used on other embodiments of hybrid systems described in this disclosure.
- As has been discussed,
systems systems systems rechargeable energy source 70 and/or secondrechargeable energy source 90. During acceleration, firstrechargeable energy source 70 and/or secondrechargeable energy source 90 may be used to provide power to the drive train. When the vehicle is parked, on-board equipment 100 such as a hydraulic lift may be activated. Such a hydraulic lift would draw power from second rechargeable energy source 90 (e.g., a hydraulic accumulator) or be driven directly by anaccessory 60 such as a hydraulic pump. Once the lift is raised and stops, hydraulic fluid no longer flows. In this position, secondrechargeable energy source 90 does not have to be charged andaccessory 60 does not have to run to keep the hydraulic lift raised. Therefore, when the lift is not moving, secondprime mover 50 may be turned off to reduce unnecessary consumption of energy from first rechargeable energy source and firstprime mover 20 may be turned off to reduce unnecessary idling.Prime mover 20 may remain off when the vehicle is parked if there is sufficient energy in rechargeable energy sources for equipment, or “hotel loads”, or power that is exported from the vehicle to power tools or lights or other loads.Systems prime mover 20, secondprime mover 50,accessory 60, or other components ofsystems - According to various exemplary embodiments, the elements of
systems such coupling 170 is shown inFIG. 17 coupling acomponent 40 to a secondprime mover 50.Fluid coupling 170 includes one or more hydraulic motors/pumps 172 and afluid channel 174 that couples together the hydraulic motors/pumps 172. Whilefluid couplings 170 may increase the cost ofsystems systems - According to another exemplary embodiment, a Vehicle Monitoring and Control System which oversees the various inputs to the traction system. The VMCS manages the following input/outputs in order to determine the amount and frequency of the power being applied to the PTO in order to maintain vehicle drivability and optimize overall efficiency:
- Accelerator pedal position
- Engine throttle position
- Battery voltage
- Vehicle speed
- Torque request
- During driving, two specific modes are entered: 1) acceleration mode and 2) stopping mode. During acceleration mode, the system routes power from the electric motor through transmission to the wheels. During stopping mode the electric motor provides resistance through the transmission to wheels in order to create electrical energy while stopping the vehicle (also called regenerative energy).
- Others such as Gruenwald and Palumbo '165 used a AC induction motor which produces less torque than the motor (for a given weight and size)
- Another embodiment has selected a permanent magnet motor which provides the additional torque for launch assist and regenerative breaking to make the system more effective. Palumbo makes a note that the 215 frame is the largest induction style motor which can fit, which limits the power of the machine utilized.
- Another embodiment also alters the way the transmission shifts now by changing the CAN (vehicle network) commands for down/up shifting in order provide undetectable power blending from the electric motor and the engine through the transmission to the wheels.
- In addition the transmission's torque converter is locked and unlocked. The variable state torque converter on the transmission types being used with the PTO Hybrid technology is to reduce the effective losses in the engine and torque converter during regenerative braking
- In this way, the vehicle monitoring and control system (VMCS) which incorporates the Driver Interface Node (DIN), Auxiliary Power Unit controller (APUC), Charge Port Interface (CPI), Battery management System (BMS), and the Master Events Controller (MEC) as well as other subsystems oversees control and changeover between operating modes as well as the details of power blending, shift control, torque converter locking and unlocking, damping control, and safety aspects of regenerative braking in the midst of anti-lock or stability control events.
- Therefore, the vehicle power drive system of certain embodiments includes an internal combustion engine connected through a transmission to drive wheels of the vehicle. The transmission has a power take off (PTO) and PTO output gear. A parallel hybrid drive system, which is connected to the PTO includes an electric motor, an energy storage system (such as, for example, a battery system) and a vehicle monitoring and control system (VMCS). The electric motor is connected through a shaft to the PTO for bi-directional power flow. Typically, the electric motor operates an accessory device such as a hydraulic pump, an air compressor and a mounted accessory. The energy storage system is connected to the electric motor for sending and receiving electric power. The vehicle monitoring and control system (VMCS) has:
- a) a first, accelerating mode for delivering electric power from the energy storage system to the electric motor, to provide drive power to the transmission for supplementing drive power being delivered by the engine to the wheels of the vehicle and,
- b) a second, deceleration mode having the electric motor receive shaft power from the PTO while acting as a generator, to provide regenerative braking and recharging the energy storage system when the engine is not delivering power to the wheels, wherein further the PTO can be disengaged from the transmission, allowing the electric motor to freely provide power to the aforesaid accessory device from the energy storage system.
- The PTO is connected to a PTO output gear in the transmission. The aforesaid energy storage system preferably includes a battery pack, a battery charger for charging the battery pack using an outside electric power source, and a battery management system. The electric motor can have an optional auxiliary power take off, which can be disengaged when the VMCS is in the first mode. The VMCS optionally includes a dampening function to reduce vibration and gear backlash in the PTO when engaging either a switching mode, wherein the dampening function monitors the velocity and speed of the electric motor, thereby creating a closed-loop feedback loop to ensure smooth and efficient operation of the vehicle power drive system. The electrical motor can optionally be a permanent magnet motor providing additional torque during the aforesaid first accelerating mode and more regenerative power in the aforesaid second deceleration mode.
- The VMCS preferably monitors accelerator pedal position, engine throttle position, battery voltage, vehicle speed, and/or torque request to determine the amount and frequency of power being applied to the PTO for maintaining vehicle drivability and optimize overall efficiency.
- The hybrid system preferably includes a high voltage DC connection center between the energy storage system and an inverter for the electric motor to control electric power flow between the energy storage system, such as, for example, a battery system, and the electric motor.
- The VMCS preferably has a third park/neutral mode in which the electric motor recharges the battery pack. Additionally, the VMCS preferably has a fourth, all-electric stationary mode with the engine shut down, in which the electric motor operates the auxiliary power take off.
- In general, the vehicle power drive system of the present includes an internal combustion engine connected through a transmission to drive wheels of a vehicle, with the transmission having a power take off (PTO), wherein the drive system is retrofitted by the steps of:
- a) connection a parallel hybrid drive system to the PTO through a bi-directional power flow shaft, wherein the parallel hybrid drive system comprising an electric motor, an energy storage system, and an vehicle monitoring and control system (VMCS); and,
- b) the VMCS controls the parallel hybrid drive system to use the electric motor to supplement drive power to the wheels of the vehicle when the internal combustion engine is driving the wheels and provides regenerative braking when the engine is not delivering power to the wheels whereby the battery in the parallel hybrid drive system is recharged.
- The retrofitting can also include the step of connecting the PTO to a torque converter in the transmission, as well as the step of recharging the energy storage system using an outside electric power source. The retrofitting can also include the step of withdrawing auxiliary power from the electric motor when the electric motor is recharging the energy storage system, or the step of disengaging the auxiliary power take off when the electric motor is delivering shaft power to the transmission.
- Preferably, the VMCS uses a dampening function to reduce vibration in the PTO when switching between supplemental drive power and regenerative braking. The VMCS preferably also monitors accelerator pedal position, engine throttle position, battery voltage, vehicle speed, and/or torque request to determine the amount and frequency of power being applied to the PTO for maintaining vehicle drivability and to optimize overall efficiency.
- The hybrid system can use a high voltage DC connection center between the energy storage system and an inverter for the electric motor, to control electric power flow between the energy storage system and the electric motor, which can also recharge the energy storage system during park or neutral position of the transmission.
- The VMCS also provides a method for tuning the amount of power provided for launch assist and regenerative braking power applied in the forward and/or reverse direction, wherein further the VMCS has a tuning charge for the setting provided for each gear, the settings including pedal position vs. positive or negative torque applied, battery voltage vs. torque provided, torque provided vs. state of charge (SOC), and driver inputs including system disable.
- The system also shifts through the gear, and the transmission provides a signal over the vehicle data network to, wherein the VMCS, in order to provide advanced notice of a shift event, and wherein further based upon this information and the pedal position, so that the VMCS can increase or decrease the power provided to the electric motor, allowing for smoother and more efficient shifting, thereby enhancing the vehicle ride and reducing fuel consumption.
- The VMCS also preferably interfaces with any original equipment manufacturers (OEM) vehicle data system in order to eliminate or reduce regenerative braking based on anti-lock or traction control events.
-
FIG. 30 is a high level functional illustration of another embodiment of a hybrid vehicle drive system. The illustration shows the interrelation of all the systems the proposed parallel hybrid propulsion system as affixed to an automatic transmission (2) powered by an internal combustion engine (1) in aclass - Elements (1), (2), (3), (7) and (8) are typical components found in a
conventional Class - The mechanical portion of the embodiment is illustrated in the elements including PTO device (3), electric power (4), power electronics/battery (5), Vehicle Monitoring and Control System (VMCS) (6) and an auxiliary device (10A), such as a compressor. The PTO element (3) is connected to an electric motor (4) with a short driveshaft (9). The shaft (9) can transmit power into or out of the PTO element (3). The electric motor (4) is powered by a power electronics/battery system (5), also a bi-directional system which can provide power to, or accept power from the electric motor (3) which is acted on mechanically via the PTO (3).
- The Vehicle Monitoring and Control System (VMCS) (6) oversees the operation of the power electronics/battery system (5) by monitoring the inputs described above along with providing output data to the driver and/or other on-board vehicle systems.
- An optional auxiliary device, (10) such as a compressor (10), can be mounted on the electric motor end shaft. These auxiliary systems can include a variety of rotating machines used to transmit fluids and/or power via the PTO.
- Operational Modes:
- The following diagrams shown in
FIGS. 31-37 are illustrations of the power flow in each of the operational modes that the PTO Hybrid can be operated within: -
FIG. 31 is an Overall system diagram. -
FIG. 32 is a Driving mode during acceleration. -
FIG. 33 is a Driving mode during deceleration. -
FIG. 34 is a Driving mode during park/neutral. -
FIG. 35 is a Stationary mode during an all electric operation. -
FIG. 36 is a Stationary mode during engine operation. -
FIG. 37 is a Plug in mode during battery charging. -
FIGS. 33-37 illustrate the flower of mechanical energy, electrical energy, controls power and control logic within each of the operational modes. -
FIG. 31 shows major subsystems and elements used in a PTO hybrid system of this embodiment. Most of the blocks shows are self-explanatory, however some may need elaboration. Note the “battery isolator/combiner” (15) on the left center; this controls connections between the vehicle battery (16) and a separate 12V battery (17) which operates control systems as well as “Heating System” (18). The central block “High Voltage DC Connection Center” (19) has 3 connections; to the inverters (20A) which convert DC from the battery packs to AC to operate the PM motor, and to the DC to DC converter (21) which steps the 600 VDC down to 12V for typical vehicle loads including connections to both 300V battery packs, SES1 (25) and SES2 (26) with their own local management systems and chargers. The AC charge port (30) on the right connects through charge port interface (31) (CPI) to both battery chargers. Note that the “Electric Motor” (4) which is used through the “PTO clutch” (3) for both acceleration and regenerative braking also powers a “Hydraulic Pump” (35) for buckets hydraulics. Auxiliary power unit controller (37) (“APUC”) and driver interface node (38) (DIN) provide the power requirement to the Motor/Drive Inverter motor based on the accelerator pedal position and the power required during stationary mode operation respectively, with the “Motor Drive/Inverter” (20A) which in turn provides electric energy to the electric motor. - In
FIG. 32 , during the acceleration mode, power flows from both 300V battery packs, through the high voltage DC connection center (19), and the motor drive/inverter (20A) to the electric power (4) which drives the wheels (8) through its PTO entry point blending its power with that from engine 91). This launch assist is controlled by demand as well as the charge status of battery packs SES1 (25) and SES2 (26); it recycles energy gathered during braking to reduce fuel consumption and pollution. - In contrast, in
FIG. 33 during the deceleration mode, mechanical power flows from the differential (7) and gear box through the PTO (3), spinning the electric motor (4) as a generator to charge up both 300V battery packs through the motor drive/inverter (20) and the high voltage connection center (19). Thus energy which would have been wasted as heat in the brakes is recovered for later use. -
FIG. 34 shows a typical operation while the vehicle is in “Park/Neutral” with the engine (1) running whereby engine power can be used to spin the electric motor (4) through the PTO (3) as a generator to top up both 300V battery packs and/or power the auxiliary drive. Note that in this mode the hydraulic pump (35) is disengaged from the electric motor (4). -
FIG. 35 shows activity which can be supported by the PTO hybrid system of this invention while the vehicle is parked with the engine (3) off. In this mode, no site pollution or emissions are generated, and engine noise is absent. All power is provided from the two 300V battery packs. This all-electric mode can power bucket hydraulics, auxiliaries, and charging ofvehicle 12V battery 916) as well as a 12V battery through a DC/DC converter 921). The bold power arrows show the flow paths. -
FIG. 36 shows the power flow for the engine-driven counterpart stationary mode. In this mode all power is derived from the engine (1), and the 300V battery packs can be recharged via engine power. This mode can be used briefly until the 300V batteries are charged if they had been depleted at a work site in all-electric mode. However, this mode can also supply bucket hydraulics since the motor 94), while spun by the engine (1) as a generator to charge the 300V battery packs, is also shaft-connected to the hydraulic pump (35). -
FIG. 37 is a diagram showing the connections for plug-in charging at a charging station. 12V battery chargers not part of the vehicle system are used to charge the two 12V batteries, while the chargers built into 300V packs SES1 (25) and SES2 (26) are used to charge those high voltage packs. - It is also important to note that the arrangement of the hybrid drive system components, as shown, are illustrative only. Although only a few embodiments of the present disclosure have been described in detail, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited herein. Further, the discussions related to optional clutches apply to other embodiments described with respect to other Figures. For example, although an
APU 80 and optional clutches are shown in various embodiments, they can be removed from the system without departing from the scope of the invention unless specifically recited in the claims. Accordingly, all such modifications are intended to be included within the scope of the present disclosure as described herein. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. Other substitutions, modifications, changes, and/or omissions may be made in the design, operating conditions and arrangement of the preferred and other exemplary embodiments without departing from the exemplary embodiments of the present disclosure as expressed herein.
Claims (20)
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160169184A1 (en) * | 2013-07-31 | 2016-06-16 | Schaeffler Technologies AG & Co. KG | Vehicle having a belt pulley and standstill air-conditioning |
US20180099567A1 (en) * | 2016-10-11 | 2018-04-12 | Volkswagen Aktiengesellschaft | Method for recharging an electrical energy storage device of a hybrid vehicle, drive unit for a hybrid vehicle, and hybrid vehicle |
US20190036374A1 (en) * | 2016-03-16 | 2019-01-31 | Autonetworks Technologies, Ltd. | Vehicle power supply system and vehicle drive system |
CN109552074A (en) * | 2018-09-30 | 2019-04-02 | 中铁武汉勘察设计研究院有限公司 | A kind of track power flatcar power power supply management method and system |
US10597041B2 (en) * | 2015-10-09 | 2020-03-24 | Hitachi Automotive Systems, Ltd. | Control apparatus for electric vehicle, control system for electric vehicle, and method for controlling electric vehicle |
CN111688668A (en) * | 2019-03-12 | 2020-09-22 | 中冶宝钢技术服务有限公司 | Hydraulic hybrid vehicle control method |
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Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8408341B2 (en) | 2007-07-12 | 2013-04-02 | Odyne Systems, Llc | Hybrid vehicle drive system and method and idle reduction system and method |
US20120207620A1 (en) | 2007-07-12 | 2012-08-16 | Odyne Systems, LLC. | Hybrid vehicle drive system and method and idle reduction system and method |
US8978798B2 (en) | 2007-10-12 | 2015-03-17 | Odyne Systems, Llc | Hybrid vehicle drive system and method and idle reduction system and method |
CN102652072B (en) * | 2009-12-18 | 2015-09-02 | 优迪卡汽车股份有限公司 | The Accessory drive mechanism of hybrid electric vehicle |
WO2011109018A1 (en) * | 2010-03-03 | 2011-09-09 | International Truck Intellectual Property Company, Llc | Angular velocity control for hybrid vehicle prime movers |
US8944449B2 (en) * | 2010-04-06 | 2015-02-03 | Polaris Industries Inc. | Side-by-side vehicle |
WO2012038497A2 (en) * | 2010-09-24 | 2012-03-29 | Magna E-Car Systems Gmbh & Co Og | Electric motor vehicle and redox flow module and cartridge therefor |
US11225240B2 (en) | 2011-12-02 | 2022-01-18 | Power Technology Holdings, Llc | Hybrid vehicle drive system and method for fuel reduction during idle |
US9327731B2 (en) * | 2012-02-03 | 2016-05-03 | Arvinmeritor Technology, Llc | Method of controlling a brake system for a vehicle |
EP2631101B1 (en) * | 2012-02-22 | 2016-06-08 | MAGNA STEYR Fahrzeugtechnik AG & Co KG | Hybrid drive |
US9315187B2 (en) | 2012-06-04 | 2016-04-19 | Inventev, Llc | Plug-in hybrid electric vehicle system |
JP5800093B2 (en) * | 2012-08-02 | 2015-10-28 | 日産自動車株式会社 | Charge management system for automatic guided vehicle and charge management method for automatic guided vehicle |
MY154243A (en) * | 2012-08-02 | 2015-05-18 | Nissan Motor | Battery charging management system of automated guided vehicle and battery charging management method |
US9669724B2 (en) * | 2012-08-31 | 2017-06-06 | Johnson Controls Technology Center | Optimized fuzzy logic controller for energy management in micro and mild hybrid electric vehicles |
US20140093760A1 (en) * | 2012-09-28 | 2014-04-03 | Quantumscape Corporation | Battery control systems |
AT513477B1 (en) * | 2012-10-02 | 2015-06-15 | Avl List Gmbh | Method for operating a drive train |
JP6119966B2 (en) * | 2012-12-21 | 2017-04-26 | 三菱自動車工業株式会社 | Hybrid vehicle travel mode switching control device |
JP5712999B2 (en) * | 2012-12-26 | 2015-05-07 | トヨタ自動車株式会社 | Hybrid car |
US9067593B2 (en) * | 2013-03-08 | 2015-06-30 | Toyota Motor Engineering & Manufacturing North America, Inc. | Hybrid vehicle launch control |
CN105408151A (en) * | 2013-03-15 | 2016-03-16 | 储存能源解决方案公司 | Hydraulic hybrid system |
DE102013215319A1 (en) * | 2013-08-05 | 2015-02-05 | Robert Bosch Gmbh | Method for operating a battery system |
US9296303B2 (en) * | 2013-08-20 | 2016-03-29 | Lear Corporation | Electric vehicle supply equipment (EVSE) assembly convertible between a cord set and a charge station |
US9079582B2 (en) * | 2013-08-30 | 2015-07-14 | Ford Global Technologies, Llc | Method and system to enable a coast-down mode |
CN106061784B (en) * | 2013-11-18 | 2019-07-19 | 电力科技控股有限责任公司 | Using the drive system of hybrid power vehicle and method of split shaft power output device |
US10749224B2 (en) * | 2015-08-17 | 2020-08-18 | OSC Manufacturing & Equipment Services, Inc. | Rechargeable battery power system having a battery with multiple uses |
US10407072B2 (en) * | 2015-09-03 | 2019-09-10 | Deere & Company | System and method of regulating wheel slip in a traction vehicle |
DE102015116505B4 (en) * | 2015-09-29 | 2017-12-21 | Olko-Maschinentechnik Gmbh | Mobile shaft winch |
US9963143B2 (en) * | 2016-02-18 | 2018-05-08 | Ford Global Technologies, Llc | System and method for vehicle subsystem failure mitigation |
GB2550954B (en) * | 2016-06-02 | 2022-02-23 | Arrival Ltd | Electric vehicle battery management apparatus and method |
CN106049593B (en) * | 2016-08-01 | 2018-08-10 | 华侨大学 | A kind of auto idle speed system and control method based on more hydraulic accumulators |
WO2018085411A1 (en) * | 2016-11-04 | 2018-05-11 | Black & Decker Inc. | Total task vehicle |
US10618409B2 (en) * | 2017-04-14 | 2020-04-14 | Mobile Climate Control, Corp. | Hybrid-lite systems for vehicles |
US20180297466A1 (en) * | 2017-04-17 | 2018-10-18 | Autonomous Tractor Corporation | Electric and hydraulic drive system and methods |
WO2018213362A1 (en) * | 2017-05-15 | 2018-11-22 | Quantum Industrial Development Corporation | Computer controlled solid state switching device for electrical system in a stirling-electric hybrid vehicle |
EP3656004A1 (en) | 2017-07-21 | 2020-05-27 | QuantumScape Corporation | Active and passive battery pressure management |
US10781910B2 (en) | 2017-08-03 | 2020-09-22 | Power Technology Holdings Llc | PTO lubrication system for hybrid vehicles |
GB2565570B (en) * | 2017-08-16 | 2022-07-27 | Avid Tech Limited | Low voltage hybrid system for a heavy duty vehicle |
US10960874B2 (en) * | 2017-11-20 | 2021-03-30 | Hall Labs Llc | System for automatically adjusting drive modes |
WO2019125541A1 (en) * | 2017-12-19 | 2019-06-27 | Parker-Hannifin Corporation | Engine transmission-dependent control for electric auxiliary power genration |
AU2018100174A4 (en) * | 2018-01-17 | 2018-03-15 | Redarc Technologies Pty Ltd | A controller with fuse monitoring |
BR112020016106A2 (en) * | 2018-02-09 | 2020-12-08 | AIQ Hybrid Pty Ltd | HYBRID ENGINES |
DE102018204405A1 (en) * | 2018-03-22 | 2019-09-26 | Deere & Company | PTO |
DE102018215924A1 (en) * | 2018-09-19 | 2020-03-19 | ZF Drivetech (Suzhou) Co.Ltd. | Electric drive axle for a vehicle |
US10549634B1 (en) * | 2018-10-08 | 2020-02-04 | Terry Vittatoe | Power-take-off (PTO) electrical generator system for mechanically driving an air compressor and associated use therefore |
US11233278B2 (en) * | 2019-02-15 | 2022-01-25 | Green Machine Equipment, Inc. | Rechargeable battery power system having a battery with multiple uses |
KR102194491B1 (en) * | 2019-02-26 | 2020-12-23 | 주식회사 광림 | Battery powered system for specially equipped vehicles |
US11472308B2 (en) | 2019-04-05 | 2022-10-18 | Oshkosh Corporation | Electric concrete vehicle systems and methods |
US11541863B2 (en) | 2019-10-11 | 2023-01-03 | Oshkosh Corporation | Energy management for hybrid fire fighting vehicle |
WO2021087435A1 (en) * | 2019-10-31 | 2021-05-06 | Commercial Energy Solutions, LLC | Computer-controlled power takeoff driven motorized pump system |
US11685225B2 (en) * | 2019-12-20 | 2023-06-27 | Lovis, Llc | Power takeoff-driven refrigeration |
EP3960520A1 (en) * | 2020-08-26 | 2022-03-02 | Sebastien Armleder | Vehicle energy storage |
CN112389275B (en) * | 2020-11-16 | 2022-03-29 | 睿驰电装(大连)电动系统有限公司 | Safety control method and device based on electric drive active heating mode |
KR20220128531A (en) * | 2021-03-11 | 2022-09-21 | 현대자동차주식회사 | Battery temperature controlling device of vehicle and method of operation thereof |
US11760155B2 (en) * | 2021-04-07 | 2023-09-19 | GM Global Technology Operations LLC | Energy management system for an electric vehicle |
CN113060048B (en) * | 2021-04-30 | 2022-06-14 | 重庆长安新能源汽车科技有限公司 | Power battery pulse heating system and control method thereof |
EP4194248A1 (en) * | 2021-12-13 | 2023-06-14 | Volvo Truck Corporation | A braking system and method of controlling such a braking system |
Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4671577A (en) * | 1985-11-21 | 1987-06-09 | Urban Transportation Development Corporation Ltd. | Combined regenerative and friction braking system for a vehicle |
JPH1037904A (en) * | 1996-07-19 | 1998-02-13 | Daikin Ind Ltd | Hydraulic working vehicle |
US5833570A (en) * | 1996-05-28 | 1998-11-10 | Toyota Jidosha Kabushiki Kaisha | Vehicle transmission shift control apparatus wherein torque of motor connected to automatic transmission is controlled to reduce shifting shock of transmission |
US5892346A (en) * | 1995-02-27 | 1999-04-06 | Kabushikikaisha Equos Research | Vehicle |
US6165102A (en) * | 1999-11-22 | 2000-12-26 | Cummins Engine Company, Inc. | System for controlling output torque characteristics of an internal combustion engine |
US6179395B1 (en) * | 1997-10-01 | 2001-01-30 | Visteon Global Technologies, Inc. | Method and apparatus for regenerative and anti-skid friction braking |
US6724165B2 (en) * | 2002-03-11 | 2004-04-20 | Vectrix Corporation | Regenerative braking system for an electric vehicle |
US7093912B2 (en) * | 2002-06-17 | 2006-08-22 | Ford Motor Company | Control of regenerative braking during a yaw stability control event |
US7100719B2 (en) * | 2003-02-25 | 2006-09-05 | Hino Motors, Ltd. | Hybrid-powered vehicle |
US7152934B2 (en) * | 2002-02-05 | 2006-12-26 | Continental Teves Ag & Co. Ohg | Co-ordination method for a regenerative and anti-skid braking system |
US20070108838A1 (en) * | 2005-11-14 | 2007-05-17 | Ford Global Technologies, Llc | Regenerative braking control system and method |
US7273122B2 (en) * | 2004-09-30 | 2007-09-25 | Bosch Rexroth Corporation | Hybrid hydraulic drive system with engine integrated hydraulic machine |
US7281770B1 (en) * | 2000-08-08 | 2007-10-16 | Ford Global Technologies, Llc | System and method for regenerative and antiskid braking within an electric vehicle |
US20080071472A1 (en) * | 2006-09-15 | 2008-03-20 | Denso Corporation | Control information output device |
US7575287B2 (en) * | 2005-08-29 | 2009-08-18 | Advics Co., Ltd. | Vehicle brake system |
US7654620B2 (en) * | 2006-10-26 | 2010-02-02 | Hyundai Motor Company | Method for control regenerative braking of electric vehicle |
US7719232B2 (en) * | 2007-07-18 | 2010-05-18 | Tesla Motors, Inc. | Method for battery charging based on cost and life |
US7921950B2 (en) * | 2006-11-10 | 2011-04-12 | Clean Emissions Technologies, Inc. | Electric traction retrofit |
US8186465B2 (en) * | 2005-09-01 | 2012-05-29 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and controlling method thereof |
US8210293B2 (en) * | 2006-10-11 | 2012-07-03 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle, method of controlling hybrid vehicle, program for causing computer to execute the method of controlling hybrid vehicle, and computer readable storage medium having the program stored therein |
US8229611B2 (en) * | 2007-04-23 | 2012-07-24 | Denso Corporation | Charge/discharge control apparatus for hybrid vehicle and control program device therefor |
US20130280110A1 (en) * | 2010-12-16 | 2013-10-24 | Baumueller Nuernberg Gmbh | Electric machine, in particular of a pump unit |
US8612076B2 (en) * | 2008-10-31 | 2013-12-17 | Mahindra Reva Electric Vehicles Pvt. Ltd. | Antilock braking for vehicles |
US8774993B2 (en) * | 2006-11-15 | 2014-07-08 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and method of controlling the same |
Family Cites Families (262)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2581010A (en) | 1949-08-02 | 1952-01-01 | Eaton Mfg Co | Windshield wiper apparatus |
US2968915A (en) | 1957-11-26 | 1961-01-24 | Halliburton Oil Well Cementing | Hydraulic mechanism for concrete mixer |
US3299983A (en) | 1963-10-31 | 1967-01-24 | John S Hubbard | Overhead maintenance apparatus |
US3493066A (en) | 1968-02-28 | 1970-02-03 | Mcculloch Corp | Vehicle power system intended for reduced air pollution |
DE2153961A1 (en) | 1971-10-29 | 1973-05-03 | Volkswagenwerk Ag | HYBRID DRIVE |
DE2701301A1 (en) | 1977-01-14 | 1978-07-27 | Massey Ferguson Hanomag Inc & | Swivel brake system for excavator or crane - is coupled to vehicle hydraulic system and secures upper part against unwanted swivelling |
US4443752A (en) | 1982-08-30 | 1984-04-17 | Utah Research & Development Co., Inc. | Solid state battery charger |
US4962462A (en) | 1983-09-29 | 1990-10-09 | Engelhard Corporation | Fuel cell/battery hybrid system |
US4588040A (en) | 1983-12-22 | 1986-05-13 | Albright Jr Harold D | Hybrid power system for driving a motor vehicle |
US4676116A (en) | 1984-10-12 | 1987-06-30 | Caterpillar Inc. | Countershaft transmission |
US4959962A (en) | 1987-08-27 | 1990-10-02 | Man Nutzfahrzeuge Gmbh | Starter system for automatically turning off and restarting a motor vehicle engine |
US4969147A (en) | 1987-11-10 | 1990-11-06 | Echelon Systems Corporation | Network and intelligent cell for providing sensing, bidirectional communications and control |
US4941143A (en) | 1987-11-10 | 1990-07-10 | Echelon Systems Corp. | Protocol for network having a plurality of intelligent cells |
US4918690A (en) | 1987-11-10 | 1990-04-17 | Echelon Systems Corp. | Network and intelligent cell for providing sensing, bidirectional communications and control |
US4955018A (en) | 1987-11-10 | 1990-09-04 | Echelon Systems Corporation | Protocol for network having plurality of intelligent cells |
GB8817364D0 (en) | 1988-07-21 | 1988-08-24 | Opalport Electronics Ltd | Battery monitoring system |
JPH0620833B2 (en) | 1988-10-24 | 1994-03-23 | いすゞ自動車株式会社 | Vehicle brake energy regeneration device |
US4948050A (en) | 1989-02-06 | 1990-08-14 | Picot Jules J C | Liquid atomizing apparatus for aerial spraying |
ES2010860A6 (en) | 1989-02-10 | 1989-12-01 | Itisa | Uninterrupted electric feed system with unlimited autonomy without electric accumulators |
DE4023506A1 (en) | 1990-07-24 | 1992-02-06 | Gerhard Brandl | HYDRAULIC HYBRID DRIVE FOR MOTOR VEHICLES |
DE4024384A1 (en) | 1990-08-01 | 1992-02-06 | Teves Gmbh Alfred | BLOCK-PROOF MOTOR VEHICLE BRAKE SYSTEM |
US5297143A (en) | 1990-12-03 | 1994-03-22 | Echelon Systems, Corp. | Network communication protocol including a reliable multicasting technique |
US5420572A (en) | 1990-12-03 | 1995-05-30 | Echelon Corporation | Configuration device for use in a networked communication system |
US5319641A (en) | 1990-12-03 | 1994-06-07 | Echelon Systems Corp. | Multiaccess carrier sensing network communication protocol with priority messages |
DE4041117A1 (en) | 1990-12-21 | 1992-07-02 | Man Nutzfahrzeuge Ag | HYBRID DRIVE FOR VEHICLES |
DE4102882C2 (en) | 1991-01-31 | 1995-07-20 | Man Nutzfahrzeuge Ag | Drive device of a vehicle |
DE4102822A1 (en) | 1991-01-31 | 1992-08-06 | Paul Hirsch | Ultraviolet lamp with retaining spring for microwave oven - is gripped between two relatively movable end sleeves over tube perforated to allow microwave discharge excitation |
AU1587592A (en) | 1991-03-18 | 1992-10-21 | Echelon Corporation | Networked variables |
US5195600A (en) | 1991-07-11 | 1993-03-23 | General Electric Company | Electric drive system for track-laying vehicles |
US5242278A (en) * | 1991-10-11 | 1993-09-07 | Vanair Manufacturing, Inc. | Power generator air compressor |
US5190118A (en) | 1991-11-01 | 1993-03-02 | Yelton James E | Auxiliary power train and steering system for a vehicle |
ATA6192A (en) | 1992-01-16 | 1997-05-15 | Avl Verbrennungskraft Messtech | DRIVE DEVICE DRIVE DEVICE |
US5519878A (en) | 1992-03-18 | 1996-05-21 | Echelon Corporation | System for installing and configuring (grouping and node address assignment) household devices in an automated environment |
US5366827A (en) | 1992-06-10 | 1994-11-22 | Digital Equipment Corporation | Modular housing for batteries and battery charger |
US5318142A (en) | 1992-11-05 | 1994-06-07 | Ford Motor Company | Hybrid drive system |
US5315227A (en) | 1993-01-29 | 1994-05-24 | Pierson Mark V | Solar recharge station for electric vehicles |
US5495912A (en) | 1994-06-03 | 1996-03-05 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Hybrid powertrain vehicle |
JP3211626B2 (en) | 1994-06-29 | 2001-09-25 | トヨタ自動車株式会社 | Hybrid car |
US5460900A (en) | 1994-08-08 | 1995-10-24 | Gnb Battery Technologies Inc. | Lead-acid battery having a fluid compartment for reducing convection-induced heat transfer |
US5500852A (en) | 1994-08-31 | 1996-03-19 | Echelon Corporation | Method and apparatus for network variable aliasing |
JPH08140206A (en) | 1994-11-09 | 1996-05-31 | Fuji Heavy Ind Ltd | Battery managing method for electric motor vehicle |
US5620057A (en) | 1994-12-19 | 1997-04-15 | General Motors Corporation | Electric vehicle battery enclosure |
US5558588A (en) * | 1995-02-16 | 1996-09-24 | General Motors Corporation | Two-mode, input-split, parallel, hybrid transmission |
TW269727B (en) | 1995-04-03 | 1996-02-01 | Electrosource Inc | Battery management system |
US5568037A (en) | 1995-04-03 | 1996-10-22 | Motorola, Inc. | Battery charging system having remotely located charging units |
JP3534271B2 (en) | 1995-04-20 | 2004-06-07 | 株式会社エクォス・リサーチ | Hybrid vehicle |
JP3087884B2 (en) | 1995-04-28 | 2000-09-11 | 本田技研工業株式会社 | Hybrid vehicle power generation control device |
JPH08308020A (en) | 1995-05-02 | 1996-11-22 | Hino Motors Ltd | Auxiliary acceleration and auxiliary brake unit |
JPH08322107A (en) | 1995-05-24 | 1996-12-03 | Nippondenso Co Ltd | Controller of hybrid vehicle |
AU724292C (en) | 1995-06-21 | 2001-10-11 | Batteryguard Limited | Battery monitor |
JP3524237B2 (en) | 1995-09-27 | 2004-05-10 | ソニー株式会社 | Electric vehicle battery structure |
US5887674A (en) | 1995-10-11 | 1999-03-30 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Continuously smooth transmission |
JP3780550B2 (en) | 1995-12-08 | 2006-05-31 | アイシン・エィ・ダブリュ株式会社 | Control device for vehicle drive device |
JP3524661B2 (en) | 1995-12-08 | 2004-05-10 | 本田技研工業株式会社 | Power control device for electric vehicle |
US5669842A (en) | 1996-04-29 | 1997-09-23 | General Motors Corporation | Hybrid power transmission with power take-off apparatus |
US5923093A (en) | 1996-07-02 | 1999-07-13 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle drive system adapted to assure smooth brake application by motor/generator or engine |
AU7249698A (en) | 1997-04-18 | 1998-11-13 | Ryan L. Gordon | Vehicle wheel lighting system |
US5871859A (en) | 1997-05-09 | 1999-02-16 | Parise; Ronald J. | Quick charge battery with thermal management |
US6653002B1 (en) | 1997-05-09 | 2003-11-25 | Ronald J. Parise | Quick charge battery with thermal management |
JP3644207B2 (en) | 1997-08-19 | 2005-04-27 | 日産自動車株式会社 | Shift control device for hybrid vehicle |
FR2768557A1 (en) | 1997-09-15 | 1999-03-19 | Alsthom Cge Alcatel | Monobloc sealed battery, e.g. nickel-hydride alkaline type, with less complex liquid cooling system |
JPH11107798A (en) | 1997-10-08 | 1999-04-20 | Aisin Aw Co Ltd | Hybrid driving device |
US7147071B2 (en) | 2004-02-04 | 2006-12-12 | Battelle Energy Alliance, Llc | Thermal management systems and methods |
JP3541646B2 (en) | 1997-10-13 | 2004-07-14 | トヨタ自動車株式会社 | Braking force control device |
DE19748423A1 (en) | 1997-11-03 | 1999-02-18 | Daimler Benz Ag | Device for driving auxiliary units of motor vehicle |
US6048288A (en) | 1997-11-18 | 2000-04-11 | Toyota Jidosha Kabushiki Kaisha | Power train system for a vehicle and method for operating same |
FR2774215B1 (en) | 1998-01-29 | 2000-02-25 | Alsthom Cge Alcatel | WATERPROOF MONOBLOCK BATTERY PROVIDED WITH A COOLING DEVICE |
AT2935U1 (en) | 1998-05-06 | 1999-07-26 | Steyr Daimler Puch Ag | METHOD FOR CONTROLLING A PTO'S PTO |
JPH11329518A (en) | 1998-05-21 | 1999-11-30 | Toshiba Battery Co Ltd | Battery system |
US6197444B1 (en) | 1998-08-26 | 2001-03-06 | Toshiba International Corporation | Battery case |
JP3433211B2 (en) | 1998-10-02 | 2003-08-04 | 本田技研工業株式会社 | Control device for hybrid vehicle |
US6198387B1 (en) | 1998-11-09 | 2001-03-06 | Delphi Technologies, Inc. | Restraint deployment control with central and frontal crash sensing |
JP4162781B2 (en) | 1998-11-19 | 2008-10-08 | 富士重工業株式会社 | Control device for hybrid vehicle |
JP3921850B2 (en) | 1998-12-07 | 2007-05-30 | トヨタ自動車株式会社 | Oil pump drive control device |
JP4347526B2 (en) | 1998-12-28 | 2009-10-21 | ヤマハ発動機株式会社 | Electric vehicle power supply system |
US6022292A (en) | 1999-02-12 | 2000-02-08 | Deere & Company | Method of adjusting an engine load signal used by a transmission controller |
JP3633357B2 (en) | 1999-03-31 | 2005-03-30 | スズキ株式会社 | Vehicle motor drive control device |
DE19917665A1 (en) | 1999-04-19 | 2000-10-26 | Zahnradfabrik Friedrichshafen | Hybrid drive for motor vehicle has IC engine coupled to motor through clutch and to gears through second clutch, second motor coupled permanently to gears forming hybrid drive with IC engine |
DE60007917T2 (en) | 1999-05-26 | 2004-10-28 | Toyota Jidosha K.K., Toyota | Hybrid motor vehicle with built-in fuel cells and control processes therefor |
JP2001008309A (en) | 1999-06-17 | 2001-01-12 | Nissan Diesel Motor Co Ltd | Power generation apparatus of hybrid vehicle |
EP1191155B1 (en) | 1999-06-28 | 2010-01-20 | Kobelco Construction Machinery Co., Ltd. | Excavator with hybrid drive apparatus |
US6885920B2 (en) | 1999-07-30 | 2005-04-26 | Oshkosh Truck Corporation | Control system and method for electric vehicle |
US6702052B1 (en) | 1999-09-22 | 2004-03-09 | Honda Giken Kogyo Kabushiki Kaisha | Control apparatus for hybrid vehicles |
JP3826637B2 (en) | 1999-10-08 | 2006-09-27 | トヨタ自動車株式会社 | Vehicle regenerative braking device |
JP3458795B2 (en) | 1999-10-08 | 2003-10-20 | トヨタ自動車株式会社 | Hybrid drive |
US6395417B1 (en) | 1999-10-27 | 2002-05-28 | Douglas Frazier | Spill containment system with a flexible corrosion-resistant liner |
US6251042B1 (en) | 1999-11-05 | 2001-06-26 | General Motors Corporation | Hybrid powertrain with an integrated motor/generator |
US6719080B1 (en) | 2000-01-10 | 2004-04-13 | The United States Of America As Represented By The Administrator Of The Environmental Protection Agency | Hydraulic hybrid vehicle |
US6316841B1 (en) | 2000-01-21 | 2001-11-13 | Hamilton Sundstrand Corporation | Integrated emergency power and environmental control system |
US7185722B1 (en) | 2000-02-04 | 2007-03-06 | Hitachi, Ltd. | Power transmission apparatus of motor vehicles |
JP2001254643A (en) | 2000-03-10 | 2001-09-21 | Fuji Heavy Ind Ltd | Engine control device |
KR20030011284A (en) | 2000-03-27 | 2003-02-07 | 허니웰 인터내셔널 인코포레이티드 | System and method for optimal battery usage in electric and hybrid vehicles |
NZ503882A (en) | 2000-04-10 | 2002-11-26 | Univ Otago | Artificial intelligence system comprising a neural network with an adaptive component arranged to aggregate rule nodes |
US7252165B1 (en) | 2000-04-26 | 2007-08-07 | Bowling Green State University | Hybrid electric vehicle |
US6484830B1 (en) | 2000-04-26 | 2002-11-26 | Bowling Green State University | Hybrid electric vehicle |
DE20007554U1 (en) * | 2000-04-26 | 2000-08-10 | Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München | Motor pump unit |
US7004273B1 (en) | 2000-04-26 | 2006-02-28 | Robert Gruenwald | Hybrid electric vehicle |
JP3614089B2 (en) | 2000-08-03 | 2005-01-26 | マツダ株式会社 | Hybrid vehicle travel control device |
US6502393B1 (en) * | 2000-09-08 | 2003-01-07 | Husco International, Inc. | Hydraulic system with cross function regeneration |
US6834737B2 (en) * | 2000-10-02 | 2004-12-28 | Steven R. Bloxham | Hybrid vehicle and energy storage system and method |
DE10057798A1 (en) | 2000-11-22 | 2002-05-23 | Daimler Chrysler Ag | Hybrid drive for vehicle, comprising facility for switching from internal combustion engine to electric power as required |
JP4032639B2 (en) | 2000-11-30 | 2008-01-16 | トヨタ自動車株式会社 | Vehicle regeneration control device |
US6573675B2 (en) | 2000-12-27 | 2003-06-03 | Transportation Techniques Llc | Method and apparatus for adaptive energy control of hybrid electric vehicle propulsion |
US7277782B2 (en) | 2001-01-31 | 2007-10-02 | Oshkosh Truck Corporation | Control system and method for electric vehicle |
US6604348B2 (en) | 2001-02-06 | 2003-08-12 | Deere & Company | Mower with engine-driven blade and electrical propulsion |
JP4512283B2 (en) | 2001-03-12 | 2010-07-28 | 株式会社小松製作所 | Hybrid construction machine |
EP1241041B1 (en) | 2001-03-14 | 2004-10-20 | Conception et Développement Michelin S.A. | Vehicle with super-capacitor for regenerative braking |
US6598496B2 (en) | 2001-03-19 | 2003-07-29 | General Motors Corporation | System for driving vehicle accessories through an electro-mechanical interface |
US6648785B2 (en) | 2001-12-05 | 2003-11-18 | New Venture Gear, Inc. | Transfer case for hybrid vehicle |
US6511399B2 (en) | 2001-04-25 | 2003-01-28 | General Motors Corporation | Torque and power control in a powertrain |
US6588860B2 (en) | 2001-05-09 | 2003-07-08 | Ford Global Technologies, Llc | Temperature compensated lift-throttle regenerative braking |
JP2002339853A (en) | 2001-05-16 | 2002-11-27 | Nissan Motor Co Ltd | Charge station |
TW521468B (en) | 2001-06-14 | 2003-02-21 | Quanta Comp Inc | Charging apparatus capable of dynamically adjusting charging power |
JP4360051B2 (en) * | 2001-06-25 | 2009-11-11 | 株式会社デンソー | Auxiliary equipment for vehicles |
JP3540297B2 (en) | 2001-08-29 | 2004-07-07 | 本田技研工業株式会社 | Engine control device for hybrid vehicle |
DE10148213B4 (en) | 2001-09-28 | 2005-06-09 | Daimlerchrysler Ag | Main propulsion engine, compressor and power source vehicle and method of operating the vehicle |
US20030103850A1 (en) * | 2001-11-30 | 2003-06-05 | Eaton Corporation | Axial piston pump/motor with clutch and through shaft |
JP3613236B2 (en) | 2001-12-03 | 2005-01-26 | コベルコ建機株式会社 | Work machine |
JP2003191762A (en) | 2001-12-28 | 2003-07-09 | Honda Motor Co Ltd | Vehicle driving device |
ES2309273T3 (en) | 2002-01-03 | 2008-12-16 | Parker-Hannifin Corporation | NOISE REDUCTION STRUCTURE FOR THE GEAR DEVICE OF A POWER OUTLET UNIT. |
DE10203514A1 (en) | 2002-01-30 | 2003-08-07 | Bosch Gmbh Robert | Intermediate gear change box for transferring torque in an internal combustion engine to a motor vehicle has a layshaft under load and an auxiliary layshaft linked to a gearbox feed shaft |
US6692395B2 (en) | 2002-02-25 | 2004-02-17 | Deere & Company | Transmisson for power take-off |
US6638195B2 (en) | 2002-02-27 | 2003-10-28 | New Venture Gear, Inc. | Hybrid vehicle system |
JP3641245B2 (en) | 2002-03-13 | 2005-04-20 | 日産自動車株式会社 | Shift control device for hybrid transmission |
US7293621B2 (en) | 2002-04-10 | 2007-11-13 | Charge-O-Matic Energy Recovery Devices, Llc | Vehicle drive system with energy recovery system and vehicle mounting same |
US7520354B2 (en) | 2002-05-02 | 2009-04-21 | Oshkosh Truck Corporation | Hybrid vehicle with combustion engine/electric motor drive |
US6945893B2 (en) | 2002-05-28 | 2005-09-20 | Eaton Corporation | Hybrid powertrain system |
US7119454B1 (en) | 2002-05-31 | 2006-10-10 | Ise Corporation | System and method for powering accessories in a hybrid vehicle |
US7391129B2 (en) | 2002-05-31 | 2008-06-24 | Ise Corporation | System and method for powering accessories in a hybrid vehicle |
JP2004006136A (en) | 2002-05-31 | 2004-01-08 | Fuji Heavy Ind Ltd | Vehicle management system |
JP2004011168A (en) | 2002-06-04 | 2004-01-15 | Komatsu Ltd | Construction machinery |
JP4179465B2 (en) | 2002-07-31 | 2008-11-12 | 株式会社小松製作所 | Construction machinery |
JP4100104B2 (en) | 2002-09-06 | 2008-06-11 | 日産自動車株式会社 | Idle stop vehicle control device |
JP3863838B2 (en) | 2002-11-12 | 2006-12-27 | 本田技研工業株式会社 | Hybrid vehicle |
JP4072898B2 (en) | 2002-11-21 | 2008-04-09 | 株式会社小松製作所 | Equipment layout structure for hybrid construction machines |
US6798165B2 (en) | 2002-12-06 | 2004-09-28 | Daimlerchrysler Corporation | Intelligent battery voltage regulation for hybrid vehicles |
US6971463B2 (en) | 2002-12-23 | 2005-12-06 | Cnh America Llc | Energy recovery system for work vehicle including hydraulic drive circuit and method of recovering energy |
US7315090B2 (en) | 2003-02-12 | 2008-01-01 | Tai-Her Yang | Series-parallel dual power hybrid driving system |
JP3777164B2 (en) | 2003-02-19 | 2006-05-24 | 日野自動車株式会社 | Hybrid car |
CN100376416C (en) | 2003-02-28 | 2008-03-26 | 株式会社电装 | Compressor control system for vehicle air conditioner |
US6882129B2 (en) | 2003-03-26 | 2005-04-19 | General Motors Corporation | Battery pack for a battery-powered vehicle |
JP4131188B2 (en) | 2003-04-09 | 2008-08-13 | アイシン・エィ・ダブリュ株式会社 | Control device for hybrid vehicle |
JP2004320872A (en) | 2003-04-15 | 2004-11-11 | Isuzu Motors Ltd | Power supply device for vehicle |
JP3700710B2 (en) | 2003-05-09 | 2005-09-28 | 日産自動車株式会社 | Drive control apparatus for hybrid vehicle |
US6880651B2 (en) | 2003-05-14 | 2005-04-19 | Singapore Technologies Kinetics Ltd. | Articulated vehicle, an articulation device and a drive transmission |
JP3906184B2 (en) | 2003-06-11 | 2007-04-18 | 株式会社東芝 | Semiconductor device and manufacturing method thereof |
JP4270079B2 (en) | 2003-09-05 | 2009-05-27 | 日産自動車株式会社 | Driving force control device |
US7258183B2 (en) | 2003-09-24 | 2007-08-21 | Ford Global Technologies, Llc | Stabilized electric distribution system for use with a vehicle having electric assist |
US7219000B2 (en) | 2003-10-14 | 2007-05-15 | General Motors Corporation | Speed control for an electrically variable transmission |
US6945039B2 (en) | 2003-11-14 | 2005-09-20 | Caterpillar Inc. | Power system and work machine using same |
US7375492B2 (en) | 2003-12-12 | 2008-05-20 | Microsoft Corporation | Inductively charged battery pack |
US20050139399A1 (en) | 2003-12-30 | 2005-06-30 | Hydrogenics Corporation | Hybrid electric propulsion system, hybrid electric power pack and method of optimizing duty cycle |
KR100534709B1 (en) | 2003-12-30 | 2005-12-07 | 현대자동차주식회사 | Method and apparatus for controlling regenerative braking of electric vehicle |
JP3882818B2 (en) | 2004-01-15 | 2007-02-21 | ソニー株式会社 | Battery pack |
US7182583B2 (en) * | 2004-02-06 | 2007-02-27 | Sauer-Danfoss Inc. | Electro-hydraulic power unit with a rotary cam hydraulic power unit |
DE102004009260A1 (en) | 2004-02-26 | 2005-09-29 | Zf Friedrichshafen Ag | Method for operating a PTO coupled to a drive motor |
US7251265B2 (en) | 2004-03-10 | 2007-07-31 | Tektronix, Inc. | Micro-cavity laser having increased sensitivity |
JP4270012B2 (en) | 2004-04-07 | 2009-05-27 | コベルコ建機株式会社 | Swivel work machine |
US7378808B2 (en) | 2004-05-25 | 2008-05-27 | Caterpillar Inc. | Electric drive system having DC bus voltage control |
US20050271934A1 (en) | 2004-06-05 | 2005-12-08 | Kiger William B | Battery pack assembly |
JP4144570B2 (en) | 2004-06-10 | 2008-09-03 | トヨタ自動車株式会社 | Control method of hybrid vehicle |
US7190133B2 (en) | 2004-06-28 | 2007-03-13 | General Electric Company | Energy storage system and method for hybrid propulsion |
US7275917B1 (en) * | 2004-07-26 | 2007-10-02 | Clement Industries, Inc. | Safety device for hydraulic pump |
US7564213B2 (en) | 2004-08-13 | 2009-07-21 | Eaton Corporation | Battery control system for hybrid vehicle and method for controlling a hybrid vehicle battery |
US7530413B2 (en) | 2004-08-13 | 2009-05-12 | General Motors Corporation | Reducing torque disturbances and improving fuel economy in hybrid electric powertrains |
US7104920B2 (en) | 2004-09-07 | 2006-09-12 | Eaton Corporation | Hybrid vehicle powertrain system with power take-off driven vehicle accessory |
TWI330218B (en) | 2004-10-29 | 2010-09-11 | Tai Her Yang | Split serial-parallel hybrid dual-power drive system |
DE102004052786A1 (en) | 2004-10-30 | 2006-05-24 | Volkswagen Ag | Method for controlling a pushing operation of a hybrid vehicle and hybrid vehicle |
US7146960B2 (en) | 2004-11-16 | 2006-12-12 | Ford Global Technologies, Llc | Engine shut down using fluid pump to control crankshaft stopping position |
US7311163B2 (en) | 2004-11-16 | 2007-12-25 | Eaton Corporation | Regeneration and brake management system |
ATE483599T1 (en) * | 2004-11-22 | 2010-10-15 | Bosch Rexroth Corp | HYDROELECTRIC HYBRID DRIVE SYSTEM FOR A MOTOR VEHICLE |
US7689330B2 (en) | 2004-12-01 | 2010-03-30 | Ise Corporation | Method of controlling engine stop-start operation for heavy-duty hybrid-electric and hybrid-hydraulic vehicles |
US7689331B2 (en) | 2004-12-01 | 2010-03-30 | Ise Corporation | Method of controlling engine stop-start operation for heavy-duty hybrid-electric and hybrid-hydraulic vehicles |
US7994221B2 (en) | 2004-12-06 | 2011-08-09 | Siga Technologies, Inc. | Sulfonyl semicarbazides, carbonyl semicarbazides, semicarbazides and ureas, pharmaceutical compositions thereof, and methods for treating hemorrhagic fever viruses, including infections associated with arenaviruses |
US7427156B2 (en) | 2004-12-20 | 2008-09-23 | Odyne Corporation | Thermally managed battery enclosure for electric and hybrid electric vehicles |
CA2531295C (en) | 2004-12-22 | 2013-10-22 | Odyne Corporation | Battery management and equalization system for batteries using power line carrier communications |
WO2006008756A1 (en) | 2004-12-27 | 2006-01-26 | Kodamkandeth Ukkru Varunny | Infinitely variable gear transmission with microprocessor control |
US7207916B2 (en) | 2005-01-05 | 2007-04-24 | Deere & Company | Transmission for power take-off |
DE102005001047B4 (en) | 2005-01-07 | 2018-08-16 | Volkswagen Ag | Method for operating a hybrid vehicle and hybrid vehicle |
US7600595B2 (en) | 2005-03-14 | 2009-10-13 | Zero Emission Systems, Inc. | Electric traction |
US7597172B1 (en) | 2005-04-22 | 2009-10-06 | Parker-Hannifin Corporation | Gear box for hydraulic energy recovery |
ITRM20050055U1 (en) | 2005-05-02 | 2006-11-03 | Enea Ente Nuove Tec | INTEGRATED ENERGY ACCUMULATION SYSTEM. |
US7399255B1 (en) | 2005-06-10 | 2008-07-15 | Polaris Industries Inc. | Engine and transmission control system and method for a vehicle accessory |
US7665559B2 (en) | 2005-06-10 | 2010-02-23 | De La Torre-Bueno Jose | Inputs for optimizing performance in hybrid vehicles |
JP4241676B2 (en) | 2005-06-27 | 2009-03-18 | トヨタ自動車株式会社 | POWER OUTPUT DEVICE, VEHICLE MOUNTING THE SAME, AND METHOD FOR CONTROLLING POWER OUTPUT DEVICE |
JP4412260B2 (en) | 2005-09-01 | 2010-02-10 | トヨタ自動車株式会社 | Hybrid car |
JP2007068358A (en) | 2005-09-01 | 2007-03-15 | Toyota Motor Corp | Electric vehicle |
JP2007069788A (en) | 2005-09-08 | 2007-03-22 | Nissan Motor Co Ltd | Failsafe unit for hybrid vehicle |
JP4682766B2 (en) | 2005-09-20 | 2011-05-11 | トヨタ自動車株式会社 | Vehicle power supply |
JP4434123B2 (en) | 2005-10-12 | 2010-03-17 | コベルコ建機株式会社 | Hybrid construction machine |
JP4622799B2 (en) | 2005-10-17 | 2011-02-02 | トヨタ自動車株式会社 | Braking force control device |
US7487023B2 (en) | 2005-10-27 | 2009-02-03 | Kobelco Construction Machinery Co., Ltd. | Construction machine |
US20070095587A1 (en) | 2005-11-03 | 2007-05-03 | Hybrid Dynamics Corp. | Hybrid vehicle drive train and method |
JP4680769B2 (en) | 2005-12-28 | 2011-05-11 | 富士重工業株式会社 | Hybrid drive device for work vehicle |
US7568537B2 (en) | 2006-01-09 | 2009-08-04 | General Electric Company | Vehicle propulsion system |
JP3995018B2 (en) | 2006-01-31 | 2007-10-24 | トヨタ自動車株式会社 | Control device for hybrid vehicle |
US7921945B2 (en) | 2006-02-21 | 2011-04-12 | Clean Emissions Technologies, Inc. | Vehicular switching, including switching traction modes and shifting gears while in electric traction mode |
US7308799B1 (en) | 2006-03-02 | 2007-12-18 | Harrison Thomas D | Air conditioning system operating on vehicle waste energy |
US7683569B2 (en) | 2006-03-13 | 2010-03-23 | Bowling Green State University | Parallel hybrid vehicle optimal storage system |
US7343897B2 (en) | 2006-03-22 | 2008-03-18 | Gm Global Technology Operations, Inc. | Engine control system with user-commanded engine speed adjustments in varying increments |
US7669414B2 (en) | 2006-03-28 | 2010-03-02 | Parker-Hannifin Corporation | Hydraulic energy recovery system with dual-powered auxiliary hydraulics |
US8069741B2 (en) | 2006-03-31 | 2011-12-06 | Parker-Hannifin Corporation | Modular split shaft transfer case |
DE102006018058A1 (en) | 2006-04-19 | 2007-11-08 | Zf Friedrichshafen Ag | Method for operating a parallel hybrid drive train of a vehicle with multiple drive units |
JP4972988B2 (en) | 2006-05-02 | 2012-07-11 | 日産自動車株式会社 | Hybrid vehicle transmission state switching control device |
US7610976B2 (en) | 2006-05-03 | 2009-11-03 | Gm Global Technology Operations, Inc. | Hybrid powertrain with electrically variable transmission having parallel friction launch and method |
DE102006034935B4 (en) * | 2006-07-28 | 2016-10-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive train and associated operating method |
JP5197939B2 (en) | 2006-08-24 | 2013-05-15 | 株式会社日立製作所 | Railway vehicle drive system |
US7658250B2 (en) | 2006-09-29 | 2010-02-09 | Caterpillar Inc. | Energy storage and recovery for a tracked machine |
JP5055948B2 (en) | 2006-10-20 | 2012-10-24 | コベルコ建機株式会社 | Hybrid work machine |
US7892080B1 (en) | 2006-10-24 | 2011-02-22 | Fredrik Andreas Dahl | System and method for conducting a game including a computer-controlled player |
US8984974B2 (en) * | 2006-12-14 | 2015-03-24 | W.S. Darley & Co. | Pump transmission with PTO gear and independently clutched impeller |
US7859202B2 (en) | 2007-03-09 | 2010-12-28 | Illinois Institute Of Technology | Power management for multi-module energy storage systems in electric, hybrid electric, and fuel cell vehicles |
US7670253B2 (en) | 2007-03-20 | 2010-03-02 | Gm Global Technology Operations, Inc. | Clutch control for hybrid transmission |
DE102007016514A1 (en) | 2007-04-05 | 2008-10-09 | Daimler Ag | Method for controlling a drive system for a motor vehicle |
US8567538B2 (en) | 2007-04-27 | 2013-10-29 | Leonard H. Hancock, SR. | Vehicle hydraulic system |
EP2144799A4 (en) | 2007-05-10 | 2018-01-24 | Volvo Construction Equipment AB | A method and a control system for controlling a work machine |
US20080288132A1 (en) | 2007-05-16 | 2008-11-20 | General Electric Company | Method of operating vehicle and associated system |
US8978798B2 (en) | 2007-10-12 | 2015-03-17 | Odyne Systems, Llc | Hybrid vehicle drive system and method and idle reduction system and method |
US8818588B2 (en) | 2007-07-12 | 2014-08-26 | Odyne Systems, Llc | Parallel hybrid drive system utilizing power take off connection as transfer for a secondary energy source |
US8408341B2 (en) | 2007-07-12 | 2013-04-02 | Odyne Systems, Llc | Hybrid vehicle drive system and method and idle reduction system and method |
US20120207620A1 (en) | 2007-07-12 | 2012-08-16 | Odyne Systems, LLC. | Hybrid vehicle drive system and method and idle reduction system and method |
US7641018B2 (en) * | 2007-08-13 | 2010-01-05 | International Truck Intellectual Property Company, Llc | Control strategy for DC emergency direct current motor for an emergency hydraulic pump |
US7691027B2 (en) | 2007-11-29 | 2010-04-06 | Ford Global Technologies, Llc | Idle speed control of a hybrid electric vehicle |
US7854282B2 (en) | 2007-12-10 | 2010-12-21 | International Humanities Center | Hybrid electric vehicle |
US8360180B2 (en) | 2007-12-31 | 2013-01-29 | Caterpillar Inc. | System for controlling a hybrid energy system |
US8275528B2 (en) | 2008-02-21 | 2012-09-25 | Allison Transmission, Inc. | Transmission turbine acceleration control for managing vehicle acceleration |
US7900724B2 (en) | 2008-03-20 | 2011-03-08 | Terex-Telelect, Inc. | Hybrid drive for hydraulic power |
JP4927016B2 (en) | 2008-03-31 | 2012-05-09 | トヨタ自動車株式会社 | Navigation system and hybrid vehicle equipped with the same |
WO2009129106A1 (en) | 2008-04-15 | 2009-10-22 | The Uwm Research Foundation, Inc. | Power management systems and methods in a hybrid vehicle |
US8046991B2 (en) | 2008-04-25 | 2011-11-01 | Allison Transmission, Inc. | System for selectively routing transmission fluid to a torque converter |
JP5116565B2 (en) | 2008-06-04 | 2013-01-09 | 本田技研工業株式会社 | Control device for hybrid vehicle |
US8319358B2 (en) | 2008-06-30 | 2012-11-27 | Demand Energy Networks, Inc. | Electric vehicle charging methods, battery charging methods, electric vehicle charging systems, energy device control apparatuses, and electric vehicles |
US7690344B2 (en) | 2008-07-24 | 2010-04-06 | Gm Global Technology Operations, Inc. | Method and apparatus for supporting stop-and-go engine functionality |
US8118005B2 (en) | 2008-08-08 | 2012-02-21 | International Truck Intellectual Property Company, Llc | Auxiliary power units for vehicles |
US20100057281A1 (en) | 2008-08-29 | 2010-03-04 | Paccar Inc | Information display systems and methods for hybrid vehicles |
US8182235B2 (en) | 2008-11-25 | 2012-05-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Multi-drive fluid pump |
US8162797B2 (en) | 2009-02-04 | 2012-04-24 | Ford Global Technologies, Llc | Methods and systems for heating transmission fluid |
US20120115668A1 (en) | 2009-07-22 | 2012-05-10 | Renault Trucks | Drive arrangement for vehicle auxiliaries |
US8825243B2 (en) | 2009-09-16 | 2014-09-02 | GM Global Technology Operations LLC | Predictive energy management control scheme for a vehicle including a hybrid powertrain system |
CN102652072B (en) | 2009-12-18 | 2015-09-02 | 优迪卡汽车股份有限公司 | The Accessory drive mechanism of hybrid electric vehicle |
US8408363B2 (en) | 2010-01-19 | 2013-04-02 | Deere & Company | PTO lube control system |
US8855840B2 (en) | 2010-02-03 | 2014-10-07 | Toyota Motor Engineering & Manufacturing North America, Inc. | Method and system for more efficient operation of plug-in electric vehicles |
US8374740B2 (en) | 2010-04-23 | 2013-02-12 | GM Global Technology Operations LLC | Self-learning satellite navigation assisted hybrid vehicle controls system |
US8731789B2 (en) | 2010-09-28 | 2014-05-20 | Ford Global Technologies, Llc | Transmission fluid heating via heat exchange with engine cylinder walls |
US9015093B1 (en) | 2010-10-26 | 2015-04-21 | Michael Lamport Commons | Intelligent control with hierarchical stacked neural networks |
US8868302B2 (en) | 2010-11-30 | 2014-10-21 | Caterpillar Inc. | System for autonomous path planning and machine control |
EP2551140B1 (en) | 2011-07-27 | 2018-04-25 | CLAAS Tractor S.A.S. | Agricultural vehicle and method of operation |
JP2013056629A (en) | 2011-09-08 | 2013-03-28 | Kanzaki Kokyukoki Manufacturing Co Ltd | Hybrid drive system for working vehicle |
US11225240B2 (en) | 2011-12-02 | 2022-01-18 | Power Technology Holdings, Llc | Hybrid vehicle drive system and method for fuel reduction during idle |
JP6218751B2 (en) | 2012-01-11 | 2017-10-25 | ディベロップメント イフェンコ インコーポレイテッドDeveloppement Effenco Inc. | Fuel saving system that makes it easy to restart a vehicle with the engine stopped |
US9315187B2 (en) | 2012-06-04 | 2016-04-19 | Inventev, Llc | Plug-in hybrid electric vehicle system |
US9367798B2 (en) | 2012-09-20 | 2016-06-14 | Brain Corporation | Spiking neuron network adaptive control apparatus and methods |
GB201218237D0 (en) | 2012-10-11 | 2012-11-28 | Agco Int Gmbh | PTO drivelines |
KR101451202B1 (en) | 2012-12-18 | 2014-10-22 | 현대자동차주식회사 | Structure for Controling a Hydraulic Pump for Engine Cooling Fan of Hybrid Bus |
CN103287260B (en) | 2013-05-21 | 2016-02-10 | 潍柴动力股份有限公司 | A kind of actuating device of hybrid vehicle, hybrid vehicle |
US9679258B2 (en) | 2013-10-08 | 2017-06-13 | Google Inc. | Methods and apparatus for reinforcement learning |
US9193353B2 (en) | 2013-10-30 | 2015-11-24 | GM Global Technology Operations LLC | Systems and methods for controlling an automatic transmission during a flying engine start using a flow accumulator |
US10060827B2 (en) | 2014-01-17 | 2018-08-28 | Kohler Co. | Fleet management system |
US9657831B2 (en) | 2014-06-11 | 2017-05-23 | Ford Global Technologies, Llc | Methods and systems for improving hybrid vehicle cooling |
US9791040B2 (en) | 2015-02-12 | 2017-10-17 | Ford Global Technologies, Llc | Methods and system for operating a vehicle transmission |
US11429854B2 (en) | 2016-12-04 | 2022-08-30 | Technion Research & Development Foundation Limited | Method and device for a computerized mechanical device |
US10375585B2 (en) | 2017-07-06 | 2019-08-06 | Futurwei Technologies, Inc. | System and method for deep learning and wireless network optimization using deep learning |
-
2012
- 2012-02-15 US US13/397,561 patent/US20120207620A1/en not_active Abandoned
-
2015
- 2015-03-06 US US14/640,818 patent/US20150175152A1/en not_active Abandoned
-
2020
- 2020-03-03 US US16/808,067 patent/US11584242B2/en active Active
Patent Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4671577A (en) * | 1985-11-21 | 1987-06-09 | Urban Transportation Development Corporation Ltd. | Combined regenerative and friction braking system for a vehicle |
US5892346A (en) * | 1995-02-27 | 1999-04-06 | Kabushikikaisha Equos Research | Vehicle |
US5833570A (en) * | 1996-05-28 | 1998-11-10 | Toyota Jidosha Kabushiki Kaisha | Vehicle transmission shift control apparatus wherein torque of motor connected to automatic transmission is controlled to reduce shifting shock of transmission |
JPH1037904A (en) * | 1996-07-19 | 1998-02-13 | Daikin Ind Ltd | Hydraulic working vehicle |
US6179395B1 (en) * | 1997-10-01 | 2001-01-30 | Visteon Global Technologies, Inc. | Method and apparatus for regenerative and anti-skid friction braking |
US6165102A (en) * | 1999-11-22 | 2000-12-26 | Cummins Engine Company, Inc. | System for controlling output torque characteristics of an internal combustion engine |
US7281770B1 (en) * | 2000-08-08 | 2007-10-16 | Ford Global Technologies, Llc | System and method for regenerative and antiskid braking within an electric vehicle |
US7152934B2 (en) * | 2002-02-05 | 2006-12-26 | Continental Teves Ag & Co. Ohg | Co-ordination method for a regenerative and anti-skid braking system |
US6724165B2 (en) * | 2002-03-11 | 2004-04-20 | Vectrix Corporation | Regenerative braking system for an electric vehicle |
US7093912B2 (en) * | 2002-06-17 | 2006-08-22 | Ford Motor Company | Control of regenerative braking during a yaw stability control event |
US7100719B2 (en) * | 2003-02-25 | 2006-09-05 | Hino Motors, Ltd. | Hybrid-powered vehicle |
US7273122B2 (en) * | 2004-09-30 | 2007-09-25 | Bosch Rexroth Corporation | Hybrid hydraulic drive system with engine integrated hydraulic machine |
US7575287B2 (en) * | 2005-08-29 | 2009-08-18 | Advics Co., Ltd. | Vehicle brake system |
US8186465B2 (en) * | 2005-09-01 | 2012-05-29 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and controlling method thereof |
US20070108838A1 (en) * | 2005-11-14 | 2007-05-17 | Ford Global Technologies, Llc | Regenerative braking control system and method |
US20080071472A1 (en) * | 2006-09-15 | 2008-03-20 | Denso Corporation | Control information output device |
US8210293B2 (en) * | 2006-10-11 | 2012-07-03 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle, method of controlling hybrid vehicle, program for causing computer to execute the method of controlling hybrid vehicle, and computer readable storage medium having the program stored therein |
US7654620B2 (en) * | 2006-10-26 | 2010-02-02 | Hyundai Motor Company | Method for control regenerative braking of electric vehicle |
US7921950B2 (en) * | 2006-11-10 | 2011-04-12 | Clean Emissions Technologies, Inc. | Electric traction retrofit |
US8774993B2 (en) * | 2006-11-15 | 2014-07-08 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and method of controlling the same |
US8229611B2 (en) * | 2007-04-23 | 2012-07-24 | Denso Corporation | Charge/discharge control apparatus for hybrid vehicle and control program device therefor |
US7719232B2 (en) * | 2007-07-18 | 2010-05-18 | Tesla Motors, Inc. | Method for battery charging based on cost and life |
US8612076B2 (en) * | 2008-10-31 | 2013-12-17 | Mahindra Reva Electric Vehicles Pvt. Ltd. | Antilock braking for vehicles |
US20130280110A1 (en) * | 2010-12-16 | 2013-10-24 | Baumueller Nuernberg Gmbh | Electric machine, in particular of a pump unit |
Non-Patent Citations (1)
Title |
---|
Machine translation of JPH1037904 obtained from http://translationportal.epo.org/emtp/translate/ * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160169184A1 (en) * | 2013-07-31 | 2016-06-16 | Schaeffler Technologies AG & Co. KG | Vehicle having a belt pulley and standstill air-conditioning |
US9702330B2 (en) * | 2013-07-31 | 2017-07-11 | Schaeffler Technologies AG & Co. KG | Vehicle having a belt pulley and standstill air-conditioning |
US10597041B2 (en) * | 2015-10-09 | 2020-03-24 | Hitachi Automotive Systems, Ltd. | Control apparatus for electric vehicle, control system for electric vehicle, and method for controlling electric vehicle |
US20190036374A1 (en) * | 2016-03-16 | 2019-01-31 | Autonetworks Technologies, Ltd. | Vehicle power supply system and vehicle drive system |
US10916962B2 (en) * | 2016-03-16 | 2021-02-09 | Autonetworks Technologies, Ltd. | Dual energy store and dual charging source vehicle power supply system and vehicle drive system |
US20180099567A1 (en) * | 2016-10-11 | 2018-04-12 | Volkswagen Aktiengesellschaft | Method for recharging an electrical energy storage device of a hybrid vehicle, drive unit for a hybrid vehicle, and hybrid vehicle |
US10632851B2 (en) * | 2016-10-11 | 2020-04-28 | Volkswagen Aktiengesellschaft | Method for recharging an electrical energy storage device of a hybrid vehicle, drive unit for a hybrid vehicle, and hybrid vehicle |
CN109552074A (en) * | 2018-09-30 | 2019-04-02 | 中铁武汉勘察设计研究院有限公司 | A kind of track power flatcar power power supply management method and system |
CN111688668A (en) * | 2019-03-12 | 2020-09-22 | 中冶宝钢技术服务有限公司 | Hydraulic hybrid vehicle control method |
CN111824161A (en) * | 2020-08-04 | 2020-10-27 | 杭叉集团股份有限公司 | Electro-hydraulic gear shifting smoothness control system, vehicle and control method |
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US20120207620A1 (en) | 2012-08-16 |
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