CN111976471A - Method for improving cost performance of new energy automobile and automatic transmission automobile - Google Patents
Method for improving cost performance of new energy automobile and automatic transmission automobile Download PDFInfo
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- CN111976471A CN111976471A CN202010828572.4A CN202010828572A CN111976471A CN 111976471 A CN111976471 A CN 111976471A CN 202010828572 A CN202010828572 A CN 202010828572A CN 111976471 A CN111976471 A CN 111976471A
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- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/12—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of electric gearing
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- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of fluid gearing
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Abstract
The invention discloses a method for improving the cost performance of a new energy automobile, wherein the automobile comprises a fuel cell, a storage battery, a driving motor, an automobile body material and a transmission system, and the method for improving the cost performance of the transmission system adopts a one-gear or two-gear transmission box. When the novel energy automobile is in work, the gear shifting device selects a forward gear or a reverse gear, the hydraulic motor baffle type slide vane machine of the slide vane type hydraulic driver converts hydraulic energy into mechanical energy, automatically realizes stepless speed change and torque conversion, overcomes driving wheel resistance torque to drive the automobile to move forward or reverse, can realize neutral gear, improves the performance of the novel energy automobile, and can reduce the installed capacity of a motor driving system comprising a fuel cell and a storage battery and the installed power of a driving motor compared with the existing novel energy automobile, thereby reducing the cost and improving the cost performance. The new energy automatic transmission automobile with three transmission systems can realize a method for improving the cost performance of the new energy automobile.
Description
Technical Field
The invention relates to an automobile, in particular to a method for improving the cost performance of a new energy automobile and an automatic transmission automobile.
Background
The new energy pure electric vehicle, the hybrid electric vehicle and the fuel cell vehicle have many advantages, the advantages are basically similar, and the disadvantages respectively have various disadvantages, but the common disadvantages are high price and low cost performance, and the development of the new energy vehicle industry is seriously hindered.
The heart of the electric automobile is a motor driving system which consists of a motor, a power converter, a controller, various detection sensors and a power supply (storage battery). The motor driving system is to be fully exerted, and the gearbox of the chassis transmission system matched with the traditional automobile structure is simulated.
In order to provide a transmission case matched with a new energy electric vehicle transmission system, according to data display, a single-stage speed reducer is mostly adopted in a pure electric vehicle and a fuel cell vehicle in a series mode of the current new energy electric vehicle, and the energy consumption requirement is improved in the future or the vehicle is developed into a multi-stage speed reducer; the parallel mode mostly adopts the existing automatic gearbox to modify or use an electric drive axle; the hybrid mode mostly adopts a special hybrid gearbox. In recent years, new transmissions such as two-speed transmissions, coaxial transmissions, transmissions integrating an electronic disconnect differential, transmissions integrating a dual clutch differential, three-in-one assemblies of motor controller transmissions, transmissions integrating an engine motor generator, and the like have appeared. As can be seen, the existing new energy electric automobile gearbox is very complicated.
The technical problem that a gearbox of a new energy electric vehicle is bypassed is unknown, and the problem that a gearbox capable of shifting is not available for almost 99% of pure electric vehicles on the market at present is still considered that a fuel engine vehicle cannot meet various power requirements of starting and accelerating the vehicle to overtake at a high speed of 120km/h, so that the gearbox is matched, the driving motor of the electric vehicle can output all torque from 0 rotating speed until the highest rotating speed, and the constant power output can be kept.
It is known that, in order to drive a vehicle, the active torque generated by the vehicle is greater than the resisting torque from the outside; the product FL of the force F and the force shoulder L is called moment, and the moment can be increased by increasing the force F or increasing the force shoulder L; the moment required by the automobile for starting and climbing is large, and the moment required by the automobile on a flat road is small during running; obviously, the torque of the fuel engine automobile matching gearbox is increased and reduced by increasing and reducing the force shoulder L in a gear ratio changing mode, and the torque of the pure electric automobile without the matching gearbox is increased or reduced by increasing or reducing the force F through a driving motor. If the automobile transmission system can output larger torque, under the condition that the power can meet the torque and the highest speed requirement required by automobile starting and climbing, torque is required to be stored instead of power.
Once the motor is shaped, the force arm of the motor is fixed, the motor with certain power is known from a relational expression of power P, force F and rotating speed V, the power needs to be increased when the rotating speed is high and the force needs to be large, the electric automobile needs to increase the power of a driving motor, the capacity of a fuel cell and the capacity of a storage battery, the high-power motor is replaced, more batteries are installed, larger power is reserved, the energy efficiency is reduced, the driving motor, the fuel cell and the storage battery are the most core parts of the electric automobile, and the cost is increased certainly and greatly. The method obtains the evidence from the existing pure electric vehicle loading power and selling price matched with the single-speed transmission. Therefore, the gearboxes capable of shifting gears without matching are one of the main reasons for the low cost performance of the new energy electric automobile.
The application has the same application date with three patent applications of a baffle type slide sheet machine, a slide sheet type hydraulic driver, a fuel cell baffle type slide sheet air compressor and a device thereof, and the technical problem of the invention is solved on the basis of the research of the three patent applications, so the technical scheme is suitable for the application of the patent.
Disclosure of Invention
The invention aims to improve the cost performance of a new energy automobile, provides a method for improving the cost performance of the new energy automobile, and provides a new energy automatic transmission automobile in three transmission system forms which can realize the method for improving the cost performance of the new energy automobile.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme.
A method for raising cost performance of new energy automobile includes using slide sheet type hydraulic driver to replace transmission case of new energy automobile transmission system, using slide sheet type hydraulic driver to change hydraulic pump rotation direction or hydraulic oil flow direction to shift gear, using controller accelerator pedal to control driving motor output power to drive hydraulic pump to output hydraulic energy, using baffle type slide sheet hydraulic motor to convert hydraulic energy into mechanical energy power, using automatic stepless speed change torque conversion to overcome driving wheel resistance torque to drive automobile to go forward or back for raising performance of new energy automobile The installed capacity of the storage battery and the installed power of the driving motor reduce the cost, thereby improving the cost performance.
The new energy automatic transmission automobile comprises a transmission system of the new energy automobile, two ends of a hydraulic pump oil path are respectively connected with pipeline oil at two ends of a baffle type sliding vane hydraulic motor oil path, a hydraulic oil tank is connected with one pipeline oil through a one-way valve, a sliding vane type hydraulic driver forming an oil closed two-way circulation loop replaces a transmission case of the transmission system, a driving motor is electrically connected with a power supply, a controller and a power converter, a power output shaft is in power connection with a power input shaft of the hydraulic pump, a power output shaft of the baffle type sliding vane hydraulic motor is in power connection with a power input shaft of a drive axle transmission, a driving motor power supply is linked with a controller accelerator pedal, the automobile is switched on to enter a standby state during working, a gear shifting device selector switch selects a forward gear or a reverse gear to switch to input a driving motor power supply phase sequence to drive the motor to rotate forward or reverse, and the driving, the output power of a driving motor is controlled to drive a hydraulic pump to output hydraulic energy, a baffle type sliding vane hydraulic motor converts the hydraulic energy into mechanical energy to automatically change the speed and torque and overcome the automobile resistance torque to drive the automobile to move forward or reverse, a controller acceleration pedal is released to cut off the power supply of the driving motor, the power supply is separated to be in a neutral gear state, the controller acceleration pedal is pressed again, and the baffle type sliding vane hydraulic motor is restored to drive the automobile to move forward or reverse.
The invention relates to a new energy automatic transmission automobile, which comprises a transmission system of the new energy automobile, wherein two ends of an oil path of a hydraulic pump are respectively connected with pipeline oil at two ends of an oil path at one side of a hydraulic oil path switching valve of a gear shifting device to form a one-way oil path, two ends of the oil path at the other side of the hydraulic oil path switching valve of the gear shifting device are connected with pipeline oil at two ends of an oil path of a baffle type sliding vane hydraulic motor to form a two-way oil path, a pipeline between a suction end of the hydraulic pump and the hydraulic oil path switching valve of the gear shifting device is provided with a hydraulic oil tank, one group of valves of the gear shifting device are forward gears, the other group of valves are reverse gears and are mutually on-off state valves, the gear shifting device selects the forward gear or the reverse gear hydraulic oil path switching valve to, the power output shaft is connected with the power input shaft of the hydraulic pump in a power mode, the power output shaft of the baffle type sliding vane hydraulic motor is connected with the power input shaft of the drive axle transmission in a power mode, the power supply of the driving motor is linked with the accelerator pedal of the controller, the power-on automobile enters a standby state during working, the gear shifting device selects a forward gear or a reverse gear, the accelerator pedal of the controller is pressed to be connected with the power supply of the driving motor, the output power of the driving motor is controlled to drive the hydraulic pump to output hydraulic energy, the baffle type sliding vane hydraulic motor converts the hydraulic energy into mechanical energy, the automatic stepless speed change and torque change are carried out to overcome automobile resistance torque to drive the automobile to move forward or reverse, the power supply of the driving motor is separated to be in a neutral state after the accelerator pedal of the controller is released, and the baffle type sliding.
The invention relates to a new energy automatic transmission automobile, which comprises a transmission system of the new energy automobile, wherein hubs of at least two even driving wheels are provided with baffle type sliding vane hydraulic motors, two ends of a hydraulic pump oil path are respectively connected with pipelines at the main input end and the main output end of a hydraulic distribution valve of a gear shifting device to form a one-way oil path, two ends of each group of branch oil paths of the gear shifting device distribution valve are respectively connected with pipelines at two ends of an oil path of each hub baffle type sliding vane hydraulic motor to form a two-way oil path, a hydraulic oil tank is arranged between a suction end of the hydraulic pump and the main output end of the hydraulic distribution valve of the gear shifting device, each two-way oil path is provided with a valve for controlling the conduction or the turn-off of hydraulic oil to be used as a differential, one group of the valves of the gear shifting device is a forward gear, the other group of the, a sliding vane type hydraulic driver forming an oil closed circulation loop replaces a gearbox of a transmission system, a driving motor is electrically connected with a power supply, a controller and a power converter, a power output shaft is in power connection with a power input shaft of a hydraulic pump, the power supply of the driving motor is linked with an accelerator pedal of the controller, a power supply automobile is switched on to enter a standby state during working, a gear shifting device selects a forward gear or a reverse gear, the accelerator pedal of the controller is pressed to be switched on, the power supply of the driving motor is switched on, the output power of the driving motor is controlled to drive the hydraulic pump to output hydraulic energy, the controller controls each differential valve to be switched on or off, each sliding vane type hydraulic motor differential conversion hydraulic energy is mechanical energy to be in a forward or reverse running state by forward or reverse automatic stepless speed change torque moment overcoming driving wheel resistance moment, the controller accelerator pedal is released to switch, and the controller accelerator pedal baffle type sliding vane hydraulic motor is pressed again to recover the driving state of the automobile in forward or reverse running.
The hydraulic pump is a flapper-type sliding vane hydraulic pump.
The driving motor is a medium-speed or low-speed motor.
The driving motor is a motor/power generation integrated machine.
The sliding vane type hydraulic driver is provided with a valve for controlling the speed or the stop of the vehicle in neutral gear, so that the new energy automatic gear automobile has a dragging gear function.
The vehicle is a fuel cell vehicle and the fuel cell air compressor is a fuel cell sliding vane air compressor.
The unmanned driving automobile comprises a computer system, a positioning system, a radar system, a camera and a sensor.
Due to the adoption of the technical scheme, compared with the prior art, the invention can obtain the following beneficial technical effects.
1. The large and small new energy automobiles can be changed into stepless automatic transmission automobiles. The sliding vane type hydraulic driver can replace an automatic transmission gear box and is suitable for large and small automobiles.
2. The operation is simple. Only the forward gear and the reverse gear need to be operated, the neutral gear and the power clutch are fully automatic, and the gear position does not need to be firmly remembered.
3. Can realize gearless transmission. A sliding-vane hydraulic driver is used for replacing a gear transmission case to transmit the output power of a motor to a driving wheel.
4. Has the function of dragging and blocking. The hydraulic control system is provided with a valve for controlling the circulation speed or the turn-off speed of hydraulic oil between the hydraulic pump and the plate type sliding vane hydraulic motor, the speed of the vehicle in neutral gear is controlled by controlling the circulation speed of the hydraulic oil, and the driving safety can be improved when the braking is not flexible.
5. The reserve moment is large. The diameter of the rotor of the plate type sliding vane hydraulic motor is not limited in various aspects like a motor, and the large diameter can be measured as much as possible, so that the moment arm is increased, and the moment is reserved.
6. The overload capacity is strong. The plate type sliding vane hydraulic motor has no electromagnetic coil, can not be overloaded, heated and burnt, has strong torque-changing overload capacity, and is favorable for the requirements of automobile starting and climbing.
7. Can automatically change speed and torque continuously. When the plate type sliding vane hydraulic motor in the sliding vane type hydraulic driver works, the plate type sliding vane hydraulic motor is equivalent to an engine, the output torque can be clockwise or reversely rotated from the output pressure of a hydraulic pump to the maximum output pressure, and the gear ratio limitation is avoided.
8. The technical difficulty of driving the motor can be reduced. The driving motor is only required to output power according to the requirement, and the speed change, the torque change and the like are finished by the plate type sliding vane hydraulic motor.
9. Energy conservation and environmental protection. Under the same motor driving system, the plate type sliding vane hydraulic motor is free from the limitation of the tooth ratio in automatic stepless speed change and torque change, and the new energy automatic transmission automobile can run for a longer distance.
10. The cost performance of the new energy automobile can be improved. Compared with the existing new energy automobile which needs to travel the same mileage, the novel energy automobile can reduce the installed capacity of a motor driving system comprising a fuel cell and a storage battery and the installed power of a driving motor, reduce the cost and improve the cost performance.
Drawings
The following is a detailed description of the schematic drawings provided in the present specification.
Fig. 1 shows a new energy automatic transmission vehicle in which a fuel cell vehicle, a pure electric vehicle, and a hybrid vehicle adopt a series mode, and a controller switches a phase sequence of a power supply of a driving motor to shift gears.
In the figure 1, a power supply (comprising a fuel automobile power supply, a pure electric automobile power supply and a hybrid electric automobile power supply), 2, a controller, 3, a power converter, 4, a driving motor, 5, various detection sensors, 6, a hydraulic pump, 7, a plate type sliding vane hydraulic motor, 8, a drive axle transmission, 9, a hydraulic oil tank, 10, a one-way valve, 11, a dragging valve, 12, a brake pedal, 13, an accelerator pedal and 14, and a gear shifting device change-over switch.
FIG. 2 shows a new energy automatic transmission automobile with a serial connection mode adopted by a fuel cell automobile, a pure electric automobile and a hybrid electric automobile and a gear shifting device for shifting gears by a hydraulic oil path switching valve.
In fig. 2, 1, a power supply (including a fuel automobile power supply, a pure electric automobile power supply and a hybrid electric automobile power supply), 2, a controller, 3, a power converter, 4, a driving motor, 5, various detection sensors, 6, a hydraulic pump, 7, a plate-type sliding vane hydraulic motor, 8, a drive axle transmission, 9, a hydraulic oil tank, 10, a dragging valve, 11, a gear shifting device hydraulic oil circuit switching valve, 12, a brake pedal, 13 and an accelerator pedal.
Fig. 3 shows a new energy automatic transmission vehicle in which a fuel cell vehicle, a pure electric vehicle, and a hybrid vehicle adopt a series mode, a hub of a driving wheel is a plate-type sliding vane hydraulic motor, and a hydraulic oil path switching valve of a gear shifting device shifts gears.
In fig. 3, 1 is a power supply (including a fuel vehicle power supply, a pure electric vehicle power supply and a hybrid electric vehicle power supply), 2 is a controller, 3 is a power converter, 4 is a driving motor, 5 is various detection sensors, 6 is a hydraulic pump, 7 is a hub plate type sliding vane hydraulic motor, 8 is a driving axle, 9 is a hydraulic oil tank, 10 is a drag valve, 11 is a gear shifting device hydraulic oil circuit switching valve, 12 is a brake pedal, 13 is an accelerator pedal, 14 is a differential valve, and 15 is a differential valve.
Fig. 4 is a shifting apparatus hydraulic oil passage switching valve.
In fig. 4, the AC terminals are connected to the hydraulic pump, the BD terminals are connected to the sliding vane hydraulic motor, and 1, 2, 3, and 4 are switching valves, wherein 1, 4 switching valves are a set, and 2, 3 switching valves are a set.
Detailed description of the preferred embodiments
The following further describes the embodiments of the present invention in detail.
A method for raising cost performance of new energy automobile includes using slide sheet type hydraulic driver to replace transmission case of new energy automobile transmission system, using slide sheet type hydraulic driver to change hydraulic pump rotation direction or hydraulic oil flow direction to shift gear, using controller accelerator pedal to control driving motor output power to drive hydraulic pump to output hydraulic energy, using baffle type slide sheet hydraulic motor to convert hydraulic energy into mechanical energy power, using automatic stepless speed change torque conversion to overcome driving wheel resistance torque to drive automobile to go forward or back for raising performance of new energy automobile The installed capacity of the storage battery and the installed power of the driving motor reduce the cost, thereby improving the cost performance.
The new energy automatic transmission automobile comprises a transmission system of the new energy automobile, two ends of a hydraulic pump oil path are respectively connected with pipeline oil at two ends of a baffle type sliding vane hydraulic motor oil path, a hydraulic oil tank is connected with one pipeline oil through a one-way valve, a sliding vane type hydraulic driver forming an oil closed two-way circulation loop replaces a transmission case of the transmission system, a driving motor is electrically connected with a power supply, a controller and a power converter, a power output shaft is in power connection with a power input shaft of the hydraulic pump, a power output shaft of the baffle type sliding vane hydraulic motor is in power connection with a power input shaft of a drive axle transmission, a driving motor power supply is linked with a controller accelerator pedal, the automobile is switched on to enter a standby state during working, a gear shifting device selector switch selects a forward gear or a reverse gear to switch to input a driving motor power supply phase sequence to drive the motor to rotate forward or reverse, and the driving, the output power of a driving motor is controlled to drive a hydraulic pump to output hydraulic energy, a baffle type sliding vane hydraulic motor converts the hydraulic energy into mechanical energy to automatically change the speed and torque and overcome the automobile resistance torque to drive the automobile to move forward or reverse, a controller acceleration pedal is released to cut off the power supply of the driving motor, the power supply is separated to be in a neutral gear state, the controller acceleration pedal is pressed again, and the baffle type sliding vane hydraulic motor is restored to drive the automobile to move forward or reverse.
The technical scheme is as shown in figure 1, oil flowing through a baffle type sliding vane hydraulic motor is selected to flow upwards to be a forward gear, and the reverse gear is selected on the contrary, when the forward gear is carried out, an oil pipe from the output end of a hydraulic pump to the input end of the baffle type sliding vane hydraulic motor is called a high-pressure section oil pipe, an oil pipe from the input end of the hydraulic pump to the output end of the baffle type sliding vane hydraulic motor is called a low-pressure section oil pipe, the low-pressure section oil pipe is provided with a drag valve 11, a hydraulic oil tank 9 and a one-way valve 10 thereof, the one-way valve of the hydraulic oil tank is automatically opened in normal state and neutral gear, hydraulic oil.
The invention relates to a new energy automatic transmission automobile, which comprises a transmission system of the new energy automobile, wherein two ends of an oil path of a hydraulic pump are respectively connected with pipeline oil at two ends of an oil path at one side of a hydraulic oil path switching valve of a gear shifting device to form a one-way oil path, two ends of the oil path at the other side of the hydraulic oil path switching valve of the gear shifting device are connected with pipeline oil at two ends of an oil path of a baffle type sliding vane hydraulic motor to form a two-way oil path, a pipeline between a suction end of the hydraulic pump and the hydraulic oil path switching valve of the gear shifting device is provided with a hydraulic oil tank, one group of valves of the gear shifting device are forward gears, the other group of valves are reverse gears and are mutually on-off state valves, the gear shifting device selects the forward gear or the reverse gear hydraulic oil path switching valve to, the power output shaft is connected with the power input shaft of the hydraulic pump in a power mode, the power output shaft of the baffle type sliding vane hydraulic motor is connected with the power input shaft of the drive axle transmission in a power mode, the power supply of the driving motor is linked with the accelerator pedal of the controller, the power-on automobile enters a standby state during working, the gear shifting device selects a forward gear or a reverse gear, the accelerator pedal of the controller is pressed to be connected with the power supply of the driving motor, the output power of the driving motor is controlled to drive the hydraulic pump to output hydraulic energy, the baffle type sliding vane hydraulic motor converts the hydraulic energy into mechanical energy, the automatic stepless speed change and torque change are carried out to overcome automobile resistance torque to drive the automobile to move forward or reverse, the power supply of the driving motor is separated to be in a neutral state after the accelerator pedal of the controller is released, and the baffle type sliding.
According to the technical scheme, as shown in the attached figure 2, oil flowing through a baffle type sliding-vane hydraulic motor is selected to flow upwards to be a forward gear and is reversely a reverse gear, an oil pipe from the output end of a hydraulic pump to the input end of a hydraulic oil circuit switching valve of a gear shifting device is called a high-pressure section oil pipe when the forward gear is carried out, an oil pipe from the input end of the hydraulic pump to the output end of the hydraulic oil circuit switching valve of the gear shifting device is called a low-pressure section oil pipe, and a hydraulic oil tank 9 and.
The invention relates to a new energy automatic transmission automobile, which comprises a transmission system of the new energy automobile, wherein hubs of at least two even driving wheels are provided with baffle type sliding vane hydraulic motors, two ends of a hydraulic pump oil path are respectively connected with pipelines at the main input end and the main output end of a hydraulic distribution valve of a gear shifting device to form a one-way oil path, two ends of each group of branch oil paths of the gear shifting device distribution valve are respectively connected with pipelines at two ends of an oil path of each hub baffle type sliding vane hydraulic motor to form a two-way oil path, a hydraulic oil tank is arranged between a suction end of the hydraulic pump and the main output end of the hydraulic distribution valve of the gear shifting device, each two-way oil path is provided with a valve for controlling the conduction or the turn-off of hydraulic oil to be used as a differential, one group of the valves of the gear shifting device is a forward gear, the other group of the, a sliding vane type hydraulic driver forming an oil closed circulation loop replaces a gearbox of a transmission system, a driving motor is electrically connected with a power supply, a controller and a power converter, a power output shaft is in power connection with a power input shaft of a hydraulic pump, the power supply of the driving motor is linked with an accelerator pedal of the controller, a power supply automobile is switched on to enter a standby state during working, a gear shifting device selects a forward gear or a reverse gear, the accelerator pedal of the controller is pressed to be switched on, the power supply of the driving motor is switched on, the output power of the driving motor is controlled to drive the hydraulic pump to output hydraulic energy, the controller controls each differential valve to be switched on or off, each sliding vane type hydraulic motor differential conversion hydraulic energy is mechanical energy to be in a forward or reverse running state by forward or reverse automatic stepless speed change torque moment overcoming driving wheel resistance moment, the controller accelerator pedal is released to switch, and the controller accelerator pedal baffle type sliding vane hydraulic motor is pressed again to recover the driving state of the automobile in forward or reverse running.
According to the technical scheme, as shown in the attached figure 3, the oil flowing through the hub baffle type sliding vane hydraulic motor is selected to flow upwards to be a forward gear and is reversely a reverse gear, an oil pipe from the output end of a hydraulic pump to the main input end of a hydraulic oil path switching valve of a gear shifting device is called a high-pressure section oil pipe when the forward gear is carried out, an oil pipe from the input end of the hydraulic pump to the main output end of a hydraulic oil path switching valve of the gear shifting device is called a low-pressure section oil pipe, and a hydraulic oil tank 9 and a drag. Each of the two-way oil paths is provided with a valve 14, 15 for controlling the hydraulic oil to be turned on or off to serve as a differential.
The hydraulic pump is a baffle type sliding vane hydraulic pump, and a pre-tightening device is preferably arranged in a rotor at the bottom of a blade root, so that a sliding vane always presses towards the inner surface of a stator and is in contact with the inner surface of the stator. The baffle type sliding vane hydraulic motor has to adopt a baffle type sliding vane hydraulic motor which is provided with a pre-tightening device in a rotor at the bottom of a blade root and enables a sliding vane to always press to the inner surface of a stator and contact.
The driving motor is a medium-speed or low-speed motor. The driving motor is required to output power according to the requirement, and high rotating speed is not required.
The driving motor is a motor/power generation integrated machine. I.e. having an motoring mode and a generating mode. When the automobile slides in a neutral gear, the driving wheel drives the baffle type sliding vane hydraulic motor to rotate, and the baffle type sliding vane hydraulic motor enables hydraulic oil to circularly flow to drive the baffle type sliding vane hydraulic pump to drive the motor/power generation integrated machine to generate power.
The sliding vane type hydraulic driver is provided with a valve for controlling the speed or the stop of the vehicle in neutral gear, so that the new energy automatic gear automobile has a dragging gear function. The function is equivalent to the dragging function of a manual gear box, and when the function is controlled by controlling the voltage or the current by a controller, the function is preferably controlled by being linked with a brake pedal.
The vehicle is a fuel cell vehicle and the fuel cell air compressor is a fuel cell sliding vane air compressor. The technical scheme is described in the patent application of the fuel cell baffle type sliding vane air compressor and the device thereof on the same application date of the invention.
The unmanned vehicle is provided with a computer system, a positioning system, a radar system, a camera and a sensor. In the prior art, an unmanned automobile is available, and a sliding vane type hydraulic driver is used for replacing a gearbox of a new energy automobile transmission system, so that the cost performance of the new energy unmanned automobile can be improved.
In the above scheme, the technical schemes of the sliding vane type hydraulic driver, the baffle type sliding vane hydraulic pump and the baffle type sliding vane hydraulic motor are described in the patent application of the sliding vane type hydraulic driver and the baffle type sliding vane machine in the same application date.
In order to realize the method for improving the cost performance of the new energy automobile, the invention provides the new energy automatic transmission automobile adopting three transmission system forms of valve differential speed for switching the phase sequence gear shifting of the power supply of the driving motor, the gear shifting of the hydraulic oil circuit switching valve of the gear shifting device and the gear shifting of the hydraulic oil circuit switching valve of the gear shifting device in a serial mode, and the new energy automatic transmission automobile can be used for improving the cost performance of the new energy automatic transmission automobile of which the power driving system comprises a fuel cell automobile, a pure electric automobile and a hybrid electric automobile.
Claims (10)
1. A method for improving the cost performance of a new energy automobile comprises a fuel cell, a storage battery, a driving motor, an automobile body material and a transmission system, wherein a first-gear or two-gear gearbox is adopted to improve the cost performance, and the method is characterized in that: the system also comprises a gearbox which replaces a transmission system of the new energy automobile with a sliding vane type hydraulic driver, the sliding vane type hydraulic driver is utilized to change the rotation direction of a hydraulic pump or shift gears in the flowing direction of hydraulic oil, an accelerator pedal of a controller can control the output power of a driving motor to drive the hydraulic pump to output hydraulic energy, a baffle type sliding vane hydraulic motor converts the hydraulic energy into the mechanical energy power, and the functions of automatic power clutch and automatic stepless speed change torque conversion are realized to overcome the resistance torque of a driving wheel to drive the automobile to move forwards or back.
2. New energy automatic transmission car, including new energy automobile's transmission system, the characteristic is: the two ends of the oil circuit of the hydraulic pump are respectively connected with the oil pipes at the two ends of the oil circuit of the baffle type sliding vane hydraulic motor, the hydraulic oil tank is connected with one of the oil pipes through a one-way valve, a sliding vane type hydraulic driver forming an oil closed two-way circulation loop replaces a transmission case of a transmission system, a driving motor is electrically connected with a power supply, a controller and a power converter, a power output shaft is in power connection with a power input shaft of the hydraulic pump, the power output shaft of the baffle type sliding vane hydraulic motor is in power connection with the power input shaft of a drive axle transmission, the power supply of the driving motor is linked with an accelerator pedal of the controller, a power supply automobile is switched into a standby state during working, a selector switch of the gear shifting device selects a forward gear or a reverse gear to switch and input the phase sequence of the power supply of the driving motor to drive the, the baffle type sliding vane hydraulic motor converts hydraulic energy into mechanical energy, automatically changes speed and torque continuously, overcomes automobile resistance torque, drives the automobile to move forward or reverse, releases the controller accelerator pedal, turns off the power supply of the driving motor, is separated to be in a neutral gear state, presses the controller accelerator pedal again, and restores the baffle type sliding vane hydraulic motor to drive the automobile to move forward or reverse.
3. New energy automatic transmission car, including new energy automobile's transmission system, the characteristic is: two ends of the hydraulic pump oil path are respectively connected with pipeline oil at two ends of the oil path at one side of a hydraulic oil path switching valve of the gear shifting device to form a one-way oil path, two ends of the oil path at the other side of the hydraulic oil path switching valve of the gear shifting device are connected with pipeline oil at two ends of the oil path of a baffle type sliding vane hydraulic motor to form a two-way oil path, a pipeline between the suction end of the hydraulic pump and the hydraulic oil path switching valve of the gear shifting device is provided with a hydraulic oil tank, one group of valves of the gear shifting device is a forward gear, the other group of valves of the gear shifting device is a valve which is mutually switched on and off and a reverse gear, the hydraulic oil path switching valve of the gear shifting device selects the forward gear or the reverse gear to switch the two-way hydraulic oil path, a sliding vane type hydraulic driver forming an oil closed circulation loop replaces a, the power supply of the driving motor is linked with the accelerator pedal of the controller, the automobile enters a standby state when the automobile is powered on in work, the gear shifting device selects a forward gear or a reverse gear, the accelerator pedal of the controller is pressed to be powered on, the output power of the driving motor is controlled to drive the hydraulic pump to output hydraulic energy, the baffle type sliding vane hydraulic motor converts the hydraulic energy into mechanical energy, automatically and steplessly changes the speed and torque to overcome the resistance torque of the automobile to drive the automobile to move forward or reverse, the accelerator pedal of the controller is released to turn off the power supply of the driving motor, the power supply is separated to be in a neutral gear state, the accelerator pedal of the controller is pressed again, and the baffle type sliding vane hydraulic motor restores.
4. New energy automatic transmission car, including new energy automobile's transmission system, the characteristic is: the hub of at least two driving wheels with even number is equipped with baffle type sliding vane hydraulic motor, two ends of hydraulic pump oil circuit are respectively connected with pipeline oil of main input end and main output end of hydraulic distribution valve of gear shifting device to form one-way oil circuit, two ends of each group of branch oil circuit of gear shifting device distribution valve are respectively connected with pipeline oil of two ends of oil circuit of each hub baffle type sliding vane hydraulic motor to form two-way oil circuit, the pipeline between suction end of hydraulic pump and main output end of hydraulic distribution valve of gear shifting device is equipped with hydraulic oil tank, each two-way oil circuit is equipped with valve for controlling hydraulic oil to be switched on or off as differential mechanism, one group of valves of said gear shifting device is forward gear, another group of valves is reverse gear, and is mutual on-off valve, the hydraulic oil circuit switching valve of gear shifting device can switch two-way hydraulic oil circuit, a driving motor, a power supply and a controller, the power converter is electrically connected, the power output shaft is in power connection with the power input shaft of the hydraulic pump, the power supply of the driving motor is linked with the accelerator pedal of the controller, the power supply is switched on when the automobile is in a standby state, the gear shifting device selects a forward gear or a reverse gear, the power supply of the driving motor is switched on by pressing the accelerator pedal of the controller, the output power of the driving motor is controlled to drive the hydraulic pump to output hydraulic energy, the controller controls the differential valves to be switched on or off, the hydraulic energy is converted into mechanical energy by the hydraulic motor of the baffle type sliding vanes in a forward or reverse mode, the baffle type sliding vanes of the baffle type sliding vanes are automatically and continuously changed in speed and torque, the automobile is driven to move forward or reverse, the controller is released, the accelerator pedal is switched off, the power supply of the driving motor is.
5. The new energy automatic transmission automobile according to claim 2, 3 or 4, characterized in that: the hydraulic pump is a flapper-type sliding vane hydraulic pump.
6. The new energy automatic transmission automobile according to claim 2, 3 or 4, characterized in that: the driving motor is a medium-speed or low-speed motor.
7. The new energy automatic transmission automobile according to claim 2, 3 or 4, characterized in that: the driving motor is a motor/power generation integrated machine.
8. The new energy automatic transmission automobile according to claim 2, 3 or 4, characterized in that: the sliding vane type hydraulic driver is provided with a valve for controlling the speed or the stop of the vehicle in neutral gear, so that the new energy automatic gear automobile has a dragging gear function.
9. The new energy automatic transmission automobile according to claim 2, 3 or 4, characterized in that: the vehicle is a fuel cell vehicle and the fuel cell air compressor is a fuel cell sliding vane air compressor.
10. The new energy automatic transmission automobile according to claim 2, 3 or 4, characterized in that: the unmanned vehicle is provided with a computer system, a positioning system, a radar system, a camera and a sensor.
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