Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
  • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
  • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
  • B60K6/44—Series-parallel type
  • B60K6/445—Differential gearing distribution type
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
  • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
  • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
  • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
  • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
  • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
  • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
  • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
  • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
  • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
  • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
  • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
  • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
  • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
  • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
  • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
  • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
  • B60W10/11—Stepped gearings
  • B60W10/115—Stepped gearings with planetary gears
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
  • B60W20/00—Control systems specially adapted for hybrid vehicles
  • B60W20/30—Control strategies involving selection of transmission gear ratio
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
  • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
  • B60W30/18—Propelling the vehicle
  • B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
  • B60W30/1884—Avoiding stall or overspeed of the engine
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
  • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
  • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
  • F16H3/727—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path
  • F16H3/728—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path with means to change ratio in the mechanical gearing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
  • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
  • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
  • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
  • B60K2006/381—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches characterized by driveline brakes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
  • B60W2510/00—Input parameters relating to a particular sub-units
  • B60W2510/06—Combustion engines, Gas turbines
  • B60W2510/0638—Engine speed
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
  • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
  • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
  • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
  • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
  • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
  • F16H2037/0866—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft
  • F16H2037/0873—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft with switching, e.g. to change ranges
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
  • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
  • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
  • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
  • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
  • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
  • F16H2037/088—Power split variators with summing differentials, with the input of the CVT connected or connectable to the input shaft
  • F16H2037/0886—Power split variators with summing differentials, with the input of the CVT connected or connectable to the input shaft with switching means, e.g. to change ranges
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H2200/00—Transmissions for multiple ratios
  • F16H2200/20—Transmissions using gears with orbital motion
  • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
  • F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H2200/00—Transmissions for multiple ratios
  • F16H2200/20—Transmissions using gears with orbital motion
  • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
  • F16H2200/2041—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with four engaging means
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/62—Hybrid vehicles

Definitions

• Transmissions include gears and gear trains to provide speed and torque conversions from a rotating power source (e.g., an engine, a motor, etc.) to another device (e.g., a drive shaft, wheels of a vehicle, etc.).
• a rotating power source e.g., an engine, a motor, etc.
• Transmissions include multiple gear ratios selectively coupled to the rotating power source with a mechanism that may also selectively couple an output to the various gear ratios.
• One exemplary embodiment relates to a vehicle that includes an engine, a drive axle, a multi-mode transmission, and a controller coupled to the multi-mode transmission.
• the multi-mode transmission includes a first gear set having a first planetary gear carrier and a second gear set having a second planetary gear carrier, the first planetary gear carrier and the second planetary gear carrier being rotatably coupled, a first motor/generator coupled to the first gear set, a second
• a motor/generator coupled to the second gear set and selectively coupled to the engine, a brake positioned to selectively limit a rotational movement of a ring gear of the second gear set when engaged, a first clutch selectively rotationally coupling the first planetary gear carrier and the second planetary gear carrier to the drive axle when engaged, and a second clutch selectively rotationally coupling the second
• the controller is configured to selectively transition the multi-mode transmission between a mid range mode of operation and a high range mode of operation via an intermediate shift mode of operation.
• Another exemplary embodiment relates to a drive system for a vehicle that includes a first gear set having a first sun gear, a first ring gear, a first plurality of planetary gears coupling the first sun gear to the first ring gear, and a first carrier rotationally supporting the first plurality of planetary gears, a second gear set having a second sun gear, a second ring gear, a second plurality of planetary gears coupling the second sun gear to the second ring gear, and a second carrier rotationally supporting the second plurality of planetary gears, the first carrier being directly coupled to the second carrier, a first electrical machine coupled to the first gear set, a second electrical machine coupled to the second gear set, a connecting shaft coupling an engine to the first gear set, a brake positioned to selectively limit a rotational movement of the second ring gear when engaged, a first clutch selectively rotationally coupling the first carrier and the second carrier to a driveshaft output of the vehicle when engaged, and a second clutch selectively rotationally coupling the second
• Another exemplary embodiment relates to a method of operating a multi- mode transmission of a vehicle.
• the method includes engaging a brake and first clutch of the multi-mode transmission to configure the multi-mode transmission into a first mode of operation whereby a first electromagnetic device is coupled to an engine and generates electricity to power a second electromagnetic device, the first clutch coupling a pair of carriers of a first planetary gear set and a second planetary gear set to a driveshaft output of the vehicle when engaged, monitoring a rotational speed of the second electromagnetic device and a rotational speed of the engine with one or more sensors, engaging a second clutch of the multi-mode transmission to couple the engine and the second electromagnetic device, thereby configuring the multi-mode transmission into an intermediate shift mode, in response to at least one of (a) the rotational speed of the second electromagnetic device being substantially equal to the rotational speed of the engine and (b) the difference between the rotational speed of the second electromagnetic device and the rotational speed of the engine falling below a threshold level, and at least one of (i) disengaging the brake
• FIG. 1 is a schematic view of a drive train for a vehicle, according to an exemplary embodiment
• FIG. 2 is a detailed schematic view of the drive train of FIG. 1, according to an exemplary embodiment
• FIG. 3 is a schematic diagram of a control system for the drive train of FIG. 1, according to an exemplary embodiment.
• FIG. 4 is a detailed schematic view of a drive train configured in a startup mode of operation, according to an exemplary embodiment
• FIG. 5 is a detailed schematic view of a drive train configured in a low range mode of operation, according to an exemplary embodiment
• FIG. 6 is a detailed schematic view of a drive train configured in a mid range mode of operation, according to an exemplary embodiment
• FIG. 7 is a detailed schematic view of a drive train configured in a high range mode of operation, according to an exemplary embodiment
• FIG. 8 is a detailed schematic view of a drive train configured in an intermediate shift mode of operation, according to an exemplary embodiment
• FIG. 9 is a detailed schematic view of a drive train configured in a low speed reverse mode of operation, according to an exemplary embodiment.
• FIG. 10 is a detailed schematic view of a drive train configured in a high speed reverse mode of operation, according to an exemplary embodiment.
• a multi-mode electromechanical variable transmission is provided as part of a vehicle and is selectively
• the vehicle may also include an engine, a first electromagnetic device, and second electromagnetic device.
• at least one of the first electromagnetic device and the second electromagnetic device provides rotational mechanical energy to start the engine.
• the engine provides a rotational mechanical energy input to both the first and second electromagnetic devices such that each operates as a generator to generate electrical energy.
• one of the first electromagnetic device and the second electromagnetic device are configured to receive a rotational mechanical energy output from at least one of the engine and the multi-mode electromechanical variable transmission and provide an electrical energy output to power a control system and/or the other electromagnetic device.
• a vehicle 10 includes an engine 20 coupled to a transmission, shown as transmission 30.
• engine 20 is configured to combust fuel and provide a mechanical energy input to transmission 30.
• engine 20 may be configured to provide a rotational mechanical energy input to transmission 30.
• a first electrical machine, electromagnetic device and/or motor/generator, shown as first electromagnetic device 40, and a second electrical machine, electromagnetic device and/or motor/generator, shown as second electromagnetic device 50, are coupled to transmission 30.
• vehicle 10 includes a front axle, shown as front axle 60, and a rear axle, shown as rear axle 70.
• front axle 60 includes a pair of tractive elements, shown as tires 62, coupled to a front differential, shown as front differential 64.
• Rear axle 70 includes a pair of tractive elements, shown as tires 72, coupled to a rear differential, shown as rear differential 74, according to an exemplary embodiment.
• front differential 64 is coupled to transmission 30 with a front axle driveshaft 66 and rear differential 74 is coupled to transmission 30 with a rear axle driveshaft 76.
• front differential 64 and rear differential 74 may be coupled to various other types of tractive elements (e.g., tracks, etc.), according to alternative embodiments.
• front axle driveshaft 66 and rear axle driveshaft 76 are configured to transport power from first electromagnetic device 40, second electromagnetic device 50, and engine 20 to tires 62 and tires 72, respectively.
• Vehicle 10 may include a plurality of front differentials 64 that may be coupled or a plurality of rear differentials 74 that may be coupled, according to various alternative embodiments.
• Engine 20 may be any source of rotational mechanical energy that is derived from a stored energy source.
• the stored energy source is disposed onboard vehicle 10, according to an exemplary embodiment.
• the stored energy source may include a liquid fuel or a gaseous fuel, among other alternatives.
• engine 20 includes an internal combustion engine configured to be powered by at least one of gasoline, natural gas, and diesel fuel.
• engine 20 includes at least one of a turbine, a fuel cell, an electric motor or still another device.
• engine 20 includes a twelve liter diesel engine capable of providing between approximately 400 horsepower and approximately 600 horsepower and between approximately 400 foot pounds of torque and approximately 2000 foot pounds of torque.
• engine 20 has a rotational speed (e.g., a rotational operational range, etc.) of between 0 and 2, 100 revolutions per minute.
• Engine 20 may be operated at a relatively constant speed (e.g., 1,600 revolutions per minute, etc.). In one
• the relatively constant speed is selected based on an operating condition of engine 20 (e.g., an operating speed relating to a point of increased fuel efficiency, etc.).
• At least one of first electromagnetic device 40 and second electromagnetic device 50 provide a mechanical energy input to transmission 30.
• at least one of first electromagnetic device 40 and second electromagnetic device 50 may be configured to provide a rotational mechanical energy input to transmission 30 (i.e., at least one of first electromagnetic device 40 and second electromagnetic device 50 may operate as a motor, etc.).
• At least one of first electromagnetic device 40 and second electromagnetic device 50 may receive a mechanical energy output from at least one of engine 20 and transmission 30.
• first electromagnetic device 40 and second electromagnetic device 50 may be configured to receive a rotational mechanical energy output from at least one of engine 20 and transmission 30 and provide an electrical energy output (i.e., at least one of first electromagnetic device 40 and second electromagnetic device 50 may operate as a generator, etc.).
• first electromagnetic device 40 and second electromagnetic device 50 are capable of both providing mechanical energy and converting a mechanical energy input into an electrical energy output (i.e., operate as a motor and a generator, etc.).
• the operational condition of first electromagnetic device 40 and second electromagnetic device 50 (e.g., as a motor, as a generator, etc.) may vary based on a mode of operation associated with transmission 30.
• a drive system for a vehicle shown as drive system 100, includes engine 20, transmission 30, first electromagnetic device 40, second electromagnetic device 50, front axle driveshaft 66, and rear axle driveshaft 76.
• transmission 30 includes a first gear set, shown as power split planetary 110, and a second gear set, shown as output planetary 120.
• power split planetary 110 and output planetary 120 are disposed between first electromagnetic device 40 and second
• power split planetary 110 and output planetary 120 are positioned outside of (i.e., not between, etc.) first electromagnetic device 40 and second electromagnetic device 50. As shown in FIG. 2, power split planetary 110 is directly coupled to engine 20.
• power split planetary 110 is a planetary gear set that includes a sun gear 112, a ring gear 114, and a plurality of planetary gears 116.
• the plurality of planetary gears 116 couple sun gear 112 to ring gear 114, according to an exemplary embodiment.
• a carrier 118 rotationally supports the plurality of planetary gears 116.
• first electromagnetic device 40 is directly coupled to sun gear 112 such that power split planetary 110 is coupled to first electromagnetic device 40.
• first electromagnetic device 40 may include a shaft (e.g., a first shaft, an input shaft, an output shaft, etc.) directly coupled to sun gear 112.
• output planetary 120 is a planetary gear set that includes a sun gear 122, a ring gear 124, and a plurality of planetary gears 126.
• the plurality of planetary gears 126 couple sun gear 122 to ring gear 124, according to an exemplary embodiment.
• a carrier 128 rotationally supports the plurality of planetary gears 126.
• second electromagnetic device 50 is directly coupled to sun gear 122 such that output planetary 120 is coupled to second electromagnetic device 50.
• second electromagnetic device 50 may include a shaft (e.g., a second shaft, an input shaft, an output shaft, etc.) directly coupled to sun gear 122.
• Carrier 118 is directly coupled to carrier 128, thereby coupling power split planetary 110 to output planetary 120, according to the exemplary embodiment shown in FIG. 2. In one embodiment, directly coupling carrier 118 to carrier 128 synchronizes rotational speeds of carrier 118 and carrier 128.
• transmission 30 includes a first clutch, shown as power split coupled clutch 130.
• power split coupled clutch 130 is positioned downstream of power split planetary 110 (e.g., between power split planetary 110 and front axle driveshaft 66 or rear axle driveshaft 76, etc.).
• power split coupled clutch 130 is directly coupled to engine 20. As shown in FIG. 2, power split coupled clutch 130 is positioned to selectively couple power split planetary 110 and output planetary 120 with a shaft, shown as output shaft 32. In one embodiment, power split coupled clutch 130 allows a vehicle to be towed without spinning the gears within
• transmission 30 (e.g., power split planetary 110, output planetary 120, etc.).
• Output shaft 32 may be coupled to rear axle driveshaft 76 and selectively coupled to front axle driveshaft with a declutch assembly, shown as front declutch collar shift 34.
• Front declutch collar shift 34 may be engaged and disengaged to selectively couple front axle driveshaft 66 to output shaft 32 of transmission 30 (e.g., to facilitate operation of a vehicle in a rear-wheel-drive-only mode, an all-wheel-drive mode, a four-wheel-drive mode, etc.).
• transmission 30 includes a second clutch, shown as input coupled clutch 140.
• Input coupled clutch 140 is positioned to selectively couple second electromagnetic device 50 with engine 20, according to an exemplary embodiment. Input coupled clutch 140 may thereby selectively couple engine 20 to output planetary 120.
• transmission 30 includes a shaft, shown as connecting shaft 36.
• connecting shaft 36 extends from engine 20, through second electromagnetic device 50, and through output planetary 120 to power split planetary 110.
• Connecting shaft 36 couples engine 20 with power split planetary 110, according to the exemplary embodiment shown in FIG. 2.
• connecting shaft 36 directly couples engine 20 with ring gear 114 of power split planetary 110.
• Input coupled clutch 140 may selectively couple second electromagnetic device 50 with connecting shaft 36.
• the shaft (e.g., input/output shaft, etc.) of first electromagnetic device 40 and the shaft (e.g., input/output shaft, etc.) of second electromagnetic device 50 are radially aligned with power split planetary 110, output planetary 120, and connecting shaft 36 (e.g., centerlines thereof are aligned, etc.).
• transmission 30 includes a third clutch, shown as output coupled clutch 150.
• Output coupled clutch 150 is positioned to selectively couple output planetary 120 with output shaft 32, according to an exemplary embodiment.
• output shaft 32 is radially offset from power split planetary 110, output planetary 120, and connecting shaft 36 (e.g., radially offset from centerlines thereof, etc.).
• transmission 30 includes brake, shown as output brake 170.
• Output brake 170 is positioned to selectively inhibit the movement of at least a portion of output planetary 120 (e.g., ring gear 124, etc.), according to an exemplary embodiment.
• output brake 170 is biased into an engaged position (e.g., with a spring, etc.) and selectively disengaged (e.g., with application of pressurized hydraulic fluid, etc.).
• output brake 170 is hydraulically- biased and spring released.
• the components of transmission 30 are still otherwise engaged and disengaged (e.g., pneumatically, etc.).
• output brake 170 and output coupled clutch 150 may be engaged simultaneously to function as a driveline brake (e.g., a braking mechanism to slow down a vehicle, etc.).
• transmission 30 includes a gear set 180 that couples carrier 118 and carrier 128 to output shaft 32.
• gear set 180 includes a first gear, shown as gear 182, in meshing engagement with a second gear, shown as gear 184.
• gear 182 is rotatably coupled to carrier 118 and carrier 128.
• gear 182 may be fixed to a component (e.g., shaft, tube, etc.) that couples carrier 118 and carrier 128.
• power split coupled clutch 130 is positioned to selectively couple gear 184 with output shaft 32 when engaged. With power split coupled clutch 130 disengaged, relative movement (e.g., rotation, etc.) may occur between gear 184 and output shaft 32.
• transmission 30 includes a gear set, shown as gear set 190, that couples output planetary 120 to output shaft 32.
• gear set 190 includes a first gear, shown as gear 192, coupled to ring gear 124 of output planetary 120.
• Gear 192 is in meshing engagement with a second gear, shown as gear 194, according to an exemplary embodiment.
• gear 194 is coupled to a third gear, shown as gear 196.
• gear 192 is directly coupled with gear 196.
• gear set 190 may not include gear 194, and gear 192 may be directly coupled to (e.g., in meshing engagement with, etc.) gear 196.
• gear set 190 may not include gear 194, and gear 192 may be directly coupled to (e.g., in meshing engagement with, etc.) gear 196.
• output coupled clutch 150 is positioned to selectively couple gear 196 with output shaft 32 when engaged. With output coupled clutch 150 disengaged, relative movement (e.g., rotation, etc.) may occur between gear 196 and output shaft 32. By way of example, output coupled clutch 150 may be engaged to couple ring gear 124 to output shaft 32. Output brake 170 is positioned to selectively limit the movement of gear 192 when engaged to thereby also limit the movement of ring gear 124, gear 194, and gear 196.
• a control system 200 for a vehicle includes a controller 210.
• controller 210 is configured to selectively engage, selectively disengage, or otherwise communicate with components of the vehicle according to various modes of operation.
• controller 210 is coupled to engine 20.
• controller 210 is configured to selectively engage engine 20 (e.g., interface with a throttle of, etc.) such that an output of engine 20 spins at a target rate.
• Controller 210 is coupled to first electromagnetic device 40 and second electromagnetic device 50, according to an exemplary embodiment, and may send and receive signals therewith.
• controller 210 may send command signals relating to at least one of a target rotational speed and a target rotation direction for first electromagnetic device 40 and second electromagnetic device 50.
• first electromagnetic device 40 and second electromagnetic device 50 are electrically coupled.
• power generated by first electromagnetic device 40 may be utilized by second electromagnetic device 50 (e.g., to provide an output torque as a motor, etc.), or power generated by second electromagnetic device 50 may be utilized by first electromagnetic device 40 (e.g., to provide an output torque as a motor, etc.).
• control system 200 includes a user interface 220 that is coupled to controller 210.
• controller 210 In one embodiment, controller 210 is coupled to controller 210.
• user interface 220 includes a display and an operator input.
• the display may be configured to display a graphical user interface, an image, an icon, or still other information.
• the display includes a graphical user interface configured to provide general information about the vehicle (e.g., vehicle speed, fuel level, warning lights, etc.).
• the graphical user interface may also be configured to display a current mode of operation, various potential modes of operation, or still other information relating to transmission 30 or drive system 100.
• the graphical user interface may be configured to provide specific information regarding the operation of drive system 100 (e.g., whether power split coupled clutch 130, input coupled clutch 140, output coupled clutch 150, and output brake 170 are engaged or disengaged, a fault condition where at least one of power split coupled clutch 130, input coupled clutch 140, output coupled clutch 150, and output brake 170 fail to engage or disengage in response to a command signal, etc.).
• the operator input may be used by an operator to provide commands to at least one of engine 20, transmission 30, first electromagnetic device 40, second electromagnetic device 50, and drive system 100 or still another component of the vehicle.
• the operator input may include one or more buttons, knobs, touchscreens, switches, levers, or handles.
• an operator may press a button to change the mode of operation for at least one of transmission 30, and drive system 100, and the vehicle.
• the operator may be able to manually control some or all aspects of the operation of transmission 30 using the display and the operator input.
• any type of display or input controls may be
• Controller 210 may be implemented as a general-purpose processor, an application specific integrated circuit (ASIC), one or more field programmable gate arrays (FPGAs), a digital-signal-processor (DSP), circuits containing one or more processing components, circuitry for supporting a microprocessor, a group of processing components, or other suitable electronic processing components.
• ASIC application specific integrated circuit
• FPGAs field programmable gate arrays
• DSP digital-signal-processor
• circuits containing one or more processing components circuitry for supporting a microprocessor, a group of processing components, or other suitable electronic processing components.
• controller 210 includes a processing circuit 212 and a memory 214.
• Processing circuit 212 may include an ASIC, one or more FPGAs, a DSP, circuits containing one or more processing components, circuitry for supporting a microprocessor, a group of processing components, or other suitable electronic processing components.
• processing circuit 212 is configured to execute computer code stored in memory 214 to facilitate the activities described herein.
• Memory 214 may be any volatile or non-volatile computer-readable storage medium capable of storing data or computer code relating to the activities described herein.
• memory 214 includes computer code modules (e.g., executable code, object code, source code, script code, machine code, etc.) configured for execution by processing circuit 212.
• Memory 214 includes various actuation profiles corresponding to modes of operation (e.g., for transmission 30, for drive system 100, for a vehicle, etc.), according to an exemplary embodiment.
• controller 210 may represent a collection of processing devices (e.g., servers, data centers, etc.). In such cases, processing circuit 212 represents the collective processors of the devices, and memory 214 represents the collective storage devices of the devices.
• transmission 30 is configured to operate according to a plurality of modes of operation.
• Various modes of operation for transmission 30 are identified below in Table 1.
• a vehicle having transmission 30 is configured to operate according to the various modes of operation shown in FIGS. 4-10 and identified below in Table 1.
• an "X" represents a component of drive system 100 (e.g., output brake 170, power split coupled clutch 130, etc.) that is engaged or closed during the respective modes of operation. In one embodiment, all of the components in Table 1 are disengaged to selectively reconfigure transmission 30 in a neutral mode.
• transmission 30 is selectively reconfigured into an active neutral startup mode of operation (e.g., a vehicle start mode of operation, an active neutral mode of operation, etc.).
• Controller 210 may selectively configure transmission 30 into the active neutral startup mode of operation in response to a vehicle start request and/or an engine start request.
• Controller 210 may selectively configure transmission 30 into the active neutral startup mode of operation from a passive neutral mode of operation (e.g., a mode whereby engine 20 is running but does not provide an output torque to tires 62 and/or tires 72, etc.).
• a passive neutral mode of operation e.g., a mode whereby engine 20 is running but does not provide an output torque to tires 62 and/or tires 72, etc.
• controller 210 first selectively configures transmission 30 into the passive neutral mode of operation (e.g., by starting engine 20, etc.) and thereafter selectively configure transmission 30 into the active neutral startup mode of operation in response to the vehicle start request and/or the engine start request.
• Transmission 30 may be reconfigured into the passive neutral mode of operation at various times during the operation of the vehicle (e.g., when entering a park mode of operation from a driving mode of operation, in order to tow the vehicle, etc.).
• engine 20 includes a traditional starting mechanism (e.g., a starter motor, etc.) configured to start engine 20 (e.g., in response to a vehicle start request, in response to an engine start request, etc.).
• the vehicle start request and/or the engine start request may include a directive to turn the engine “on” from an "off state.
• the vehicle may include at least one of a pushbutton, a graphical user interface, an ignition, and another device with which a user interacts to provide or trigger the vehicle start request and/or the engine start request.
• the vehicle start request and/or the engine start request is generated by an autonomous control system configured to command the vehicle or engine to turn “on” from an “off state.
• Controller 210 may provide a signal to first start engine 20 and thereafter selectively configure transmission 30 into the active neutral startup mode of operation in response to a vehicle start request and/or an engine start request.
• engine 20 may provide a rotational mechanical energy input to at least one of first electromagnetic device 40 and second electromagnetic device 50.
• first electromagnetic device 40 is coupled to second electromagnetic device 50 with a bus.
• the bus may include an electrical connection, and a voltage produced by first electromagnetic device 40 in response to the rotational input from engine 20 may be applied to the bus.
• First electromagnetic device 40 may produce a voltage that is applied to the bus when transmission 30 is configured in the active neutral startup mode of operation.
• the at least one of first electromagnetic device 40 and second electromagnetic device 50 may provide a startup power in response to a rotational input from engine 20.
• engine 20 powers at least one of the first electromagnetic device 40 and second electromagnetic device 50, which is brought up to a threshold level (e.g., a threshold speed, a threshold speed for a target period of time, performance that provides a threshold power generation, performance that provides a threshold power generation for a target period of time, performance that provides a threshold startup power, etc.).
• the threshold level may relate to a requisite DC bus voltage needed to activate at least one of first electromagnetic device 40 and second electromagnetic device 50, which is brought up to a threshold level (e.g., a threshold speed, a threshold speed for a target period of time, performance that provides a threshold power generation, performance that provides a threshold power generation for a target period of time, performance that provides a threshold startup power, etc.).
• the threshold level may relate to a requisite DC bus voltage needed to activate at least one of first
• electromagnetic device 40 and second electromagnetic device 50 The power electronics of control system 200 that control the motor-to-motor functions may be brought online during the active neutral startup mode.
• controller 210 activates first electromagnetic device 40 and/or second
• controller 210 disengages at least one of input coupled clutch 140 and output brake 170 in response to first electromagnetic device 40 operating at the threshold level.
• transmission 30 is selectively reconfigured into the active neutral startup mode during an initial start of engine 20 (e.g., when engine is turned “on” from an "off state, etc.).
• the active neutral startup mode may differ from other neutral modes of operation associated with the vehicle (e.g., in non-startup conditions, etc.), where first electromagnetic device 40 and second electromagnetic device 50 are already actuatable into a desired state and/or otherwise online.
• at least one of first electromagnetic device 40 and second electromagnetic device 50 include and/or are coupled an energy storage device (e.g., a capacitor, a battery, etc.) configured to store energy (e.g., electrical energy, chemical energy, etc.) associated with drive system 100.
• an energy storage device e.g., a capacitor, a battery, etc.
• rotation of first electromagnetic device 40 rotates connecting shaft 36 to start engine 20.
• first electromagnetic device 40 may be configured to use the stored energy to start engine 20 by providing a rotational mechanical energy input (e.g., a torque, etc.) to engine 20 via connecting shaft 36.
• rotation of second electromagnetic device 50 rotates connecting shaft 36 (e.g., where input coupled clutch 140 is engaged, etc.) to start engine 20.
• second electromagnetic device 50 may be configured to use the stored energy to start engine 20 by providing a rotational mechanical energy input (e.g., a torque, etc.) to engine 20 through the engagement of input coupled clutch 140 with connecting shaft 36.
• Such an active neutral startup mode may be used to start engine 20, establish a requisite DC bus voltage, and/or otherwise export power without relying on controller 210 to engage first
• electromagnetic device 40 and/or second electromagnetic device 50 are examples of electromagnetic device 40 and/or second electromagnetic device 50.
• input coupled clutch 140 and output brake 170 are engaged when transmission 30 is configured in the active neutral startup mode.
• input coupled clutch 140 directly couples second electromagnetic device 50 to connecting shaft 36 and engine 20.
• Output brake 170 rotationally fixes ring gear 124.
• connecting shaft 36 drives both power split planetary 110 (e.g., directly, etc.) and output planetary 120 (e.g., through second electromagnetic device 50, etc.).
• power split planetary 110 e.g., directly, etc.
• output planetary 120 e.g., through second electromagnetic device 50, etc.
• an energy flow path for the active neutral startup mode includes: engine 20 providing a rotational mechanical energy input to connecting shaft 36; connecting shaft 36 conveying the rotational mechanical energy to ring gear 114 and second electromagnetic device 50 (e.g., through input coupled clutch 140, etc.); and second electromagnetic device 50 transferring the rotational mechanical energy input to sun gear 122.
• engine 20 providing a rotational mechanical energy input to connecting shaft 36
• connecting shaft 36 conveying the rotational mechanical energy to ring gear 114 and second electromagnetic device 50 (e.g., through input coupled clutch 140, etc.); and second electromagnetic device 50 transferring the rotational mechanical energy input to sun gear 122.
• ring gear 114 is driven directly by connecting shaft 36.
• carrier 118 is indirectly driven by connecting shaft 36 (e.g., by output planetary 120 when input coupled clutch 140 is engaged, etc.).
• the rotation of ring gear 114 and carrier 118 rotates the plurality of planetary gears 116 about central axes thereof such that sun gear 112 rotates.
• the rotation of sun gear 112 drives first electromagnetic device 40.
• first electromagnetic device 40 thereby provides a startup power in response to a rotational input from engine 20.
• the rotation of sun gear 112 may facilitate first electromagnetic device 40 establishing a requisite operating condition (e.g., a requisite DC bus voltage, etc.) for controlling first electromagnetic device 40 and/or second electromagnetic device 50 in one or more desired states.
• a requisite operating condition e.g., a requisite DC bus voltage, etc.
• second electromagnetic device 50 is brought up to the threshold individually or jointly with first
• electromagnetic device 40 to establish the requisite DC bus voltage and control first electromagnetic device 40 and/or second electromagnetic device 50 in a desired state.
• An alternative energy flow path in the active neutral startup mode in which drive system 100 includes: an energy storage device may include first
• electromagnetic device 40 providing a rotational mechanical energy input to sun gear 112 that is received by the plurality of planetary gears 116; the plurality of planetary gears 116 conveying the rotational mechanical energy to ring gear 114; and ring gear 114 transferring the rotational mechanical energy to connecting shaft 36 such that the rotational mechanical energy provided by first electromagnetic device 40 starts engine 20.
• engaging input coupled clutch 140 rotates second electromagnetic device 50 at the rotational speed of connecting shaft 36.
• Connecting shaft 36 may rotate at the same speed as engine 20 such that engine 20 and second electromagnetic device 50 operate at a 1 : 1 speed ratio.
• engaging input coupled clutch 140 and output brake 170 rotates carrier 118 (e.g., through output planetary 120, etc.) while ring gear 114 rotates with connecting shaft 36.
• Engaging input coupled clutch 140 and output brake 170 may drive first electromagnetic device 40 at a rotational speed that is related to the rotational speed of carrier 118 and the rotational speed of ring gear 114.
• the active neutral startup mode locks first electromagnetic device 40 and second electromagnetic device 50 in a fixed speed ratio with engine 20 (e.g., 1 : 1 between second
• electromagnetic device 50 and engine 20 1.06: 1 between first electromagnetic device 40 and engine 20, etc.).
• transmission 30 isolates engine 20 from output shaft 32 during the active neutral startup mode (e.g., power split coupled clutch 130 and output coupled clutch 150 may be disengaged, etc.). Such isolation may reduce (e.g., substantially eliminate, etc.) a forward lurch potential traditionally associated with starting the vehicle (e.g., transmission 30 does not provide an output torque to tires 62 and/or tires 72 when in the active neutral startup mode, etc.).
• input coupled clutch 140 and output brake 170 remain engaged after first electromagnetic device 40 and/or second electromagnetic device 50 are activated into one or more desired operating states.
• drive system 100 may generate electrical power.
• rotation of connecting shaft 36 may rotate first electromagnetic device 40 and/or second electromagnetic device 50 to generate electrical power.
• the electrical power is stored for future use.
• the electrical power is used to actively power devices associated with the vehicle.
• the electrical power is used to power external devices (e.g., provide export power, etc.).
• At least one of input coupled clutch 140 and output brake 170 are disengaged in response to the generated startup power, the speed of first electromagnetic device 40 and/or second electromagnetic device 50, the generated voltage, and/or the generated voltage and generation time exceeding a threshold level.
• Such disengagement may prepare transmission 30 to be selectively reconfigured into a drive mode (e.g., low range, mid range, high range, etc.).
• input coupled clutch 140 may be disengaged in response to first electromagnetic device 40 and second electromagnetic device 50 being activated and controlled (e.g., by controller 210, etc.).
• activating one or more of the electromagnetic devices includes controlling second electromagnetic device 50 in a motoring mode where second electromagnetic device 50 provides an input torque to transmission 30 and is commanded to operate at a target speed.
• a target speed may be based on the current vehicle speed (e.g., zero if the vehicle is not moving on flat ground, non-zero if the vehicle is rolling up or down a slope at startup, etc.).
• Commanding the operation of second electromagnetic device 50 may prepare transmission 30 for a shift from the active neutral startup mode of operation (i.e., a selective reconfiguration, etc.) to another driving mode of operation (e.g., a mid range mode of operation, etc.). Such preparation may decrease an inertial jerk on output shaft 32 during the shift.
• the active neutral startup mode of operation i.e., a selective reconfiguration, etc.
• another driving mode of operation e.g., a mid range mode of operation, etc.
• transmission 30 is selectively reconfigured into a low range mode of operation such that transmission 30 allows for a low output speed operation with a high output torque.
• the low range mode increases a vehicle's gradability (e.g., facilitates the vehicle maintaining speed on a grade, etc.).
• engine 20 provides a rotational mechanical energy input to
• first electromagnetic device 40 generates electrical power and second electromagnetic device 50 uses the generated electrical power to provide a rotational mechanical energy input to transmission 30.
• engine 20 and second electromagnetic device 50 provide a rotational mechanical energy input to drive at least one of tires 62 and tires 72.
• first electromagnetic device 40 operates as a motor and second electromagnetic device 50 operates as a generator when transmission 30 is configured in the low range mode.
• power split coupled clutch 130 and output coupled clutch 150 are engaged when transmission 30 is configured in the low range mode. As shown in FIG. 5, power split coupled clutch 130 and output coupled clutch 150 couple gear set 180 and gear set 190 to output shaft 32, respectively. Accordingly, when engine 20 provides a rotational mechanical energy input to transmission 30, both power split planetary 110 and output planetary 120 drive output shaft 32 via gear set 180 and gear set 190, respectively. According to the exemplary embodiment shown in FIG.
• an energy flow path for the low range includes: engine 20 providing a rotational mechanical energy input to connecting shaft 36; connecting shaft 36 conveying the rotational mechanical energy to ring gear 114; ring gear 114 causing the plurality of planetary gears 116 to rotate about central axes thereof, as well as about sun gear 112 such that both carrier 118 and sun gear 112 rotate; and the rotation of sun gear 112 driving first electromagnetic device 40 such that it operates as a generator (e.g., generates electrical energy, etc.).
• a generator e.g., generates electrical energy, etc.
• carrier 118 drives both carrier 128 and gear set 180.
• Carrier 128 drives the plurality of planetary gears 126 to rotate about sun gear 122 and about central axes thereof.
• second electromagnetic device 50 receives electrical energy generated by first
• second electromagnetic device 50 operates as a motor, providing a rotational mechanical energy input to sun gear 122.
• the sun gear 122 conveys the rotational mechanical energy to the plurality of planetary gears 126 such that each further rotates about the central axis thereof.
• the plurality of planetary gears 126 drive ring gear 124, and the rotation of ring gear 124 drives gear set 190.
• gear set 180 and gear set 190 transfer a torque to and from output shaft 32 with power split coupled clutch 130 and output coupled clutch 150 engaged.
• engine 20 and second electromagnetic device 50 move a vehicle at a low speed with a high output torque.
• transmission 30 is selectively reconfigured into a mid range mode of operation such that transmission 30 allows for a mid range output speed operation.
• the mid range mode may improve low output speed torque and high output speed power.
• engine 20 provides a rotational mechanical energy input such that first electromagnetic device 40 generates electrical power
• second electromagnetic device 50 uses the generated electrical power to provide a rotational mechanical energy input to transmission 30.
• Second electromagnetic device 50 thereby provides a rotational mechanical energy input to drive at least one of tires 62 and tires 72.
• second electromagnetic device 50 operates as a generator while first electromagnetic device 40 operates as a motor when transmission 30 is configured in the mid range mode.
• both first electromagnetic device 40 and second electromagnetic device 50 operate as a generator in the mid range mode.
• power split coupled clutch 130 and output brake 170 are engaged when transmission 30 is configured in the mid range mode.
• output brake 170 inhibits the rotation of gear set 190 (e.g., gear 192, gear 194, gear 196, etc.).
• gear set 190 e.g., gear 192, gear 194, gear 196, etc.
• Output brake 170 thereby rotationally fixes ring gear 124.
• engaging output brake 170 substantially eliminates a power dip between output and input modes of transmission 30. According to the exemplary embodiment shown in FIG.
• an energy flow path for the mid range mode includes: engine 20 providing a rotational mechanical energy input to connecting shaft 36 that is conveyed to ring gear 114; ring gear 114 driving the plurality of planetary gears 116 to rotate about central axes thereof, as well as about sun gear 112 such that both carrier 118 and sun gear 112 rotate; and the rotation of carrier 118 driving carrier 128, which rotates the plurality planetary gears 126 about central axes thereof, as well as about sun gear 122.
• second electromagnetic device 50 may operate as a motor.
• second electromagnetic device 50 receives electrical energy generated by first electromagnetic device 40.
• First electromagnetic device 40 operates as a generator, removing a rotational mechanical energy from sun gear 112.
• the sun gear 122 conveys the rotational mechanical torque to the plurality of planetary gears 126 such that each further rotates about sun gear 122 (e.g., at an increased rotational speed, etc.).
• the rotation of the plurality of planetary gears 126 (e.g., effected by sun gear 122, etc.) drives carrier 128 and thereby gear set 180.
• power split coupled clutch 130 couples gear set 180 to output shaft 32 such that the rotational mechanical energy of gear set 180, received from second electromagnetic device 50, drives output shaft 32 at a mid range output speed and may thereby drive a vehicle at a mid range output speed.
• transmission 30 is selectively reconfigured into a high range mode of operation such that transmission 30 allows for a high output speed operation.
• engine 20 provides a rotational mechanical energy input such that second electromagnetic device 50 generates electrical power while first electromagnetic device 40 uses the generated electrical power to provide a rotational mechanical energy input to transmission 30.
• engine 20 and first electromagnetic device 40 provide a rotational mechanical energy input to drive at least one of tires 62 and tires 72.
• first electromagnetic device 40 operates as a generator and second electromagnetic device 50 operates as a motor when transmission 30 is configured in the high range mode.
• power split coupled clutch 130 and input coupled clutch 140 are engaged when transmission 30 is configured in the high range mode.
• the engagement of input coupled clutch 140 with connecting shaft 36 rotationally couples engine 20 and second electromagnetic device 50.
• engine 20 may provide a rotational mechanical energy input to connecting shaft 36 such that second electromagnetic device 50 generates electrical energy.
• first electromagnetic device 40 receives the electrical energy generated by second electromagnetic device 50.
• First electromagnetic device 40 operates as a motor, providing a rotational mechanical energy input to sun gear 112 that drives the plurality of planetary gears 116 and carrier 118.
• power from engine 20 is transferred to ring gear 114 and the plurality of planetary gears 116.
• the plurality of planetary gears 116 are driven by both engine 20 (e.g., via ring gear 114, etc.) and first electromagnetic device 40 (e.g., via sun gear 112, etc.).
• Carrier 118 rotates, which drives gear set 180.
• power split coupled clutch 130 couples gear set 180 to output shaft 32 such that the rotational mechanical energy provided by engine 20 and first electromagnetic device 40 drives a vehicle at a high range speed.
• transmission 30 is selectively reconfigured into an intermediate shift mode of operation that facilitates transitioning transmission 30 (i.e., shifting, changing modes, etc.) between the mid range mode of operation and the high range mode of operation.
• intermediate shift mode provides a smooth and robust shifting strategy that functions reliably even in a wide variety of operating conditions, when using various types of oil for the components of transmission 30, and when experiencing valve nonlinearities that may be present in one or more valves of transmission 30.
• the intermediate shift mode may provide a zero inertia shift through and across two or more overlapping ranges (e.g., the mid range and the high range, etc.). According to the exemplary embodiment shown in FIGS. 6-8, the intermediate shift mode eliminates the need to simultaneously disengage output brake 170 and engage input coupled clutch 140 to shift from the mid range mode to the high range mode, or vice versa. The intermediate shift mode reduces jerking sensations associated with simultaneously disengaging output brake 170 and engaging input coupled clutch 140 to shift from mid range to high range, providing a smoother ride.
• the intermediate shift mode may be used to shift from mid range mode to high range mode or from high range mode to mid range mode.
• transmission 30 is configured in the mid range mode of operation with power split coupled clutch 130 and output brake 170 engaged and configured in the high range mode of operation with power split coupled clutch 130 and input coupled clutch 140 engaged.
• Transmission 30 may be selectively reconfigured into the intermediate shift mode in response to the difference between a rotational speed of second electromagnetic device 50 and a rotational speed of connecting shaft 36 and/or engine 20 falling below or equaling a threshold level (e.g., approximately zero, five revolutions per minute, fifty revolutions per minute, etc.).
• a threshold level e.g., approximately zero, five revolutions per minute, fifty revolutions per minute, etc.
• Transmission 30 may enter the intermediate shift mode when the rotational speed of second electromagnetic device 50 substantially corresponds with (e.g., matches, is substantially equal to, etc.) the rotational speed of connecting shaft 36 and/or engine 20. In one embodiment, transmission 30 enters the intermediate shift mode when the rotational speeds of second electromagnetic device 50 and connecting shaft 36 and/or engine 20 are between 1,600 and 1,800 revolutions per minute (RPM). By way of example, transmission 30 may enter the intermediate shift mode when the rotational speeds of second electromagnetic device 50 and connecting shaft 36 and/or engine 20 are about 1,600 RPM.
• One or more sensors may be positioned to monitor the rotational speed of at least one of engine 20, connecting shaft 36, a portion of second electromagnetic device 50, or still another component.
• a controller e.g., controller 210, etc.
• Shifting into the intermediate shift mode occurs when there is limited (if any) relative movement between clutch disks of input coupled clutch 140.
• Transmission 30 may be reconfigured into the intermediate shift mode without compromising vehicle performance (e.g., since torque is not removed from output shaft 32, etc.).
• the intermediate shift mode reduces (e.g., minimizes, etc.) heat generation and clutch wear during shifts by limiting the relative movement between clutch disks of input coupled clutch 140 upon engagement.
• the intermediate shift mode may thereby increase clutch life.
• the vehicle may be accelerating in the mid range mode.
• second electromagnetic device 50 provides an output torque in the mid range mode of operation and its speed thereby increases with the speed of the vehicle. As the speed of second electromagnetic device 50 continues to increase with vehicle speed, second electromagnetic device 50 may begin to operate at a rotational speed similar to that of connecting shaft 36 and/or engine 20.
• Controller 210 may engage input coupled clutch 140 to selectively reconfigure transmission 30 into the intermediate shift mode from the mid range mode.
• the vehicle may alternatively be decelerating in the high range mode.
• first electromagnetic device 40 operates as a motor in the high range mode of operation with its speed related to that of connecting shaft 36, engine 20, and/or the speed of the vehicle. The speed of the vehicle and/or the speed of first electromagnetic device 40 may decrease to a speed designated for mid range mode.
• Controller 210 may engage output brake 170 to selectively reconfigure transmission 30 into the intermediate shift mode from the high range mode.
• power split coupled clutch 130 is engaged (i.e., is not disengaged, is not open, transfers torque, etc.) in each of the mid range mode, the intermediate shift mode, and the high mode.
• Transmission 30 having power split coupled clutch 130 engaged in each of these modes facilitates the continuous transfer of power from engine 20 to output shaft 32 during the shift from mid range mode to high range mode.
• engine 20 is also coupled to output shaft 32 via power split coupled clutch 130 at a fixed ratio during the intermediate shift mode. Maintaining a power path to output shaft 32 during the shift reduces (e.g., eliminates, etc.) jerking associated with shifting traditional transmission systems.
• an acceleration of engine 20 causes an acceleration of the vehicle, and a deceleration of engine 20 causes a deceleration of the vehicle. Powering the vehicle with engine 20 during the shift event increases the overall efficiency of drive system 100 by reducing the electrical power path during the shift event.
• Transmission 30 may be configured in the intermediate shift mode for an extended period of time and/or while the while the vehicle traverses an extended distance.
• Controller 210 may selectively reconfigure transmission 30 out of the intermediate shift mode (e.g., into the mid range mode of operation, into the high range mode of operation, etc.) automatically in response to at least one of an elapsed shift time (e.g., a time that has elapsed while in the intermediate shift mode, etc.), a traveled shift distance (e.g., a distance the vehicle has traveled while in the intermediate shift mode, etc.), a change in engine speed, and a request, among other conditions.
• an elapsed shift time e.g., a time that has elapsed while in the intermediate shift mode, etc.
• a traveled shift distance e.g., a distance the vehicle has traveled while in the intermediate shift mode, etc.
• a change in engine speed e.g., a request, among other conditions.
• controller 210 transitions transmission 30 out of the intermediate shift mode in response to an indication that the shift has satisfied at least one of a time-based and a distance-based condition.
• controller 210 may transition transmission 30 out of the intermediate shift mode in response to an indication that transmission 30 has been in the intermediate shift mode for longer than a predetermined period of time.
• controller 210 may transition transmission 30 out of the intermediate shift mode in response to an indication that the vehicle has traversed more than a threshold distance.
• controller 210 transitions transmission 30 out of the intermediate shift mode in response to a change in engine speed.
• Controller 210 may selectively reconfigure transmission 30 into the high range mode from the intermediate shift mode (e.g., by disengaging output brake 170, etc.) in response to an increase in engine speed (e.g., in response to the speed of engine 20 exceeding a threshold speed, etc.).
• the vehicle may encounter a downhill slope, causing the engine speed to increase, and thereby prompting a shift into the high range mode of operation.
• the engine speed may increase based on a command (e.g., provided by an operator using an accelerator pedal or another input device, provided by a controller as part of an autonomous operation of the vehicle, etc.) that prompts the engine speed to increase.
• a command e.g., provided by an operator using an accelerator pedal or another input device, provided by a controller as part of an autonomous operation of the vehicle, etc.
• Controller 210 may selectively reconfigure transmission 30 into the mid range mode from the intermediate shift mode (e.g., by disengaging input coupled clutch 140, etc.) in response to a decrease in engine speed (e.g., in response to the speed of engine 20 falling below a threshold speed, etc.).
• the vehicle may encounter an uphill slope, causing the engine speed to decrease, and thereby prompting a shift into the mid range mode of operation.
• the engine speed may decrease based on a command (e.g., provided by an operator using a brake pedal or another input device, provided by an operator releasing an accelerator pedal or another input device, provided by a controller as part of an autonomous operation of the vehicle, etc.) that prompts the engine speed to decrease.
• a command e.g., provided by an operator using a brake pedal or another input device, provided by an operator releasing an accelerator pedal or another input device, provided by a controller as part of an autonomous operation of the vehicle, etc.
• controller 210 transitions transmission 30 out of the intermediate shift mode in response to a request.
• the request may come from an operator (e.g., provided by way of a user interface, etc.) and indicate the operator's command to enter either the mid range mode of operation or the high range mode of operation.
• the request may also be provided by a controller as part of an autonomous operation of the vehicle. Such requests may be provided in order to reenter a mode of operation whereby the vehicle operates more efficiently.
• Such requests may prompt transmission 30 to complete the shift from the mid range mode of operation to the high range mode of operation, complete the shift from the high range mode of operation to the mid range mode of operation, toggle back into the mid range mode of operation from the intermediate shift mode, and/or toggle back into the high range mode of operation from the intermediate shift mode.
• transmission 30 is selectively reconfigured into the intermediate shift mode from one of the mid range mode and the high range mode, and then is selectively reconfigured back into the previous mode (e.g., mid range mode to intermediate shift mode to mid range mode, etc.).
• transmission 30 may be reconfigured into the intermediate shift mode from the mid range mode in response to second electromagnetic device 50 and engine 20 having a speed differential below a threshold level.
• An operator may keep engine 20 operating at substantially the same speed for a period of time, driving output shaft 32 with engine 20, and then release the accelerator pedal whereby transmission 30 may be returned to the mid range mode.
• first electromagnetic device 40 generates electricity in the intermediate shift mode.
• Second electromagnetic device 50 may provide an output torque to output shaft 32 in the intermediate shift mode.
• second electromagnetic device 50 generates electricity in the intermediate shift mode.
• First electromagnetic device 40 may provide an output torque to output shaft 32 in the intermediate shift mode.
• neither or both of first electromagnetic device 40 and second electromagnetic device 50 generate electrical power and/or provide output torque in the intermediate shift mode.
• transmission 30 is selectively reconfigured into a low speed reverse mode of operation.
• engine 20 provides a rotational mechanical energy input to transmission 30 such that first electromagnetic device 40 generates electrical power and second electromagnetic device 50 uses the generated electrical power to provide a rotational mechanical energy input to transmission 30.
• engine 20 and second electromagnetic device 50 provide a rotational mechanical energy input to drive at least one of tires 62 and tires 72 in a reverse direction (e.g., backwards, etc.).
• first electromagnetic device 40 operates as a motor and second electromagnetic device 50 operates as a generator when transmission 30 is configured in the low speed reverse mode.
• power split coupled clutch 130 and output coupled clutch 150 are engaged when transmission 30 is configured in the low speed reverse mode.
• the low speed reverse mode is substantially similar to the low range mode of FIG. 5 in that power split coupled clutch 130 and output coupled clutch 150 couple both gear set 180 and gear set 190 to output shaft 32.
• second electromagnetic device 50 may provide a rotational mechanical energy input to transmission 30 in an opposite direction as compared to the low range mode of FIG. 5.
• transmission 30 is selectively reconfigured into a high speed reverse mode of operation such that transmission 30 allows for a high reverse output speed operation.
• engine 20 provides a rotational mechanical energy input such that first electromagnetic device 40 generates electrical power
• second electromagnetic device 50 uses the generated electrical power to provide a rotational mechanical energy input to transmission 30.
• second electromagnetic device 50 provides a rotational mechanical energy input to drive at least one of tires 62 and tires 72.
• second electromagnetic device 50 operates as a generator and first electromagnetic device 40 operates as a motor when transmission 30 is configured in the high speed reverse mode.
• both first electromagnetic device 40 and second electromagnetic device 50 operate as a generator in the high speed reverse mode.
• an energy flow path for the high speed reverse mode includes: engine 20 providing a rotational mechanical energy input to connecting shaft 36 that is conveyed to ring gear 114; and ring gear 114 driving the plurality of planetary gears 116 to rotate about central axes thereof, as well as about sun gear 112 such that both carrier 118 and sun gear 112 rotate.
• second electromagnetic device 50 may operate as a motor. In one embodiment, second electromagnetic device 50 receives electrical energy generated by first
• first electromagnetic device 40 operates as a generator, removing a rotational mechanical energy from sun gear 112.
• the sun gear 122 conveys the rotational mechanical torque to the plurality of planetary gears 126 such that each further rotates about sun gear 122 (e.g., at an increased rotational speed, etc.).
• the rotation of the plurality of planetary gears 126 drives carrier 128 and thereby gear set 180.
• power split coupled clutch 130 couples gear set 180 to output shaft 32 such that the rotational mechanical energy of gear set 180, received from second electromagnetic device 50, drives output shaft 32 at a high reverse output speed and may thereby drive a vehicle at a high reverse output speed.
• engine 20 does not provide a rotational mechanical energy input to drive a vehicle.
• first electromagnetic device 40, second electromagnetic device 50, and/or another device may store energy during the above mentioned modes of operation. When sufficient energy is stored (e.g., above a threshold level, etc.), at least one of first electromagnetic device 40, second electromagnetic device 50, and/or another device may store energy during the above mentioned modes of operation. When sufficient energy is stored (e.g., above a threshold level, etc.), at least one of first electromagnetic device 40, second electromagnetic device 50, and/or another device may store energy during the above mentioned modes of operation. When sufficient energy is stored (e.g., above a threshold level, etc.), at least one of first electromagnetic device 40, second electromagnetic device 50, and/or another device may store energy during the above mentioned modes of operation. When sufficient energy is stored (e.g., above a threshold level, etc.), at least one of first electromagnetic device 40, second electromagnetic device 50, and/or another device may store energy during the above mentioned modes of operation. When sufficient energy is stored (e.
• electromagnetic device 40 and second electromagnetic device 50 may provide a rotational mechanical energy input to transmission 30 such that the vehicle is driven without an input from engine 20 (e.g., an electric mode, etc.).
• Coupled means the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent, etc.) or moveable (e.g., removable, releasable, etc.). Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Transportation (AREA)
• General Engineering & Computer Science (AREA)
• Automation & Control Theory (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)
• Arrangement Of Transmissions (AREA)
• Structure Of Transmissions (AREA)

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• 2016
  • 2016-06-21 BR BR112018000125A patent/BR112018000125A2/pt not_active IP Right Cessation
  • 2016-06-21 WO PCT/US2016/038587 patent/WO2017007600A1/en active Application Filing
  • 2016-06-21 EP EP16733842.5A patent/EP3319828A1/en not_active Withdrawn
  • 2016-06-21 CN CN201680037672.7A patent/CN107864644B/zh not_active Expired - Fee Related

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