CN111055797A - Electric automobile accessory driving system - Google Patents

Electric automobile accessory driving system Download PDF

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Publication number
CN111055797A
CN111055797A CN201911398797.4A CN201911398797A CN111055797A CN 111055797 A CN111055797 A CN 111055797A CN 201911398797 A CN201911398797 A CN 201911398797A CN 111055797 A CN111055797 A CN 111055797A
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CN
China
Prior art keywords
accessory
motor
electric vehicle
product
electric automobile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911398797.4A
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Chinese (zh)
Inventor
赵德升
徐俊
宋学武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Litens Automotive Partnership
Original Assignee
Litens Automotive Partnership
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Litens Automotive Partnership filed Critical Litens Automotive Partnership
Priority to CN201911398797.4A priority Critical patent/CN111055797A/en
Publication of CN111055797A publication Critical patent/CN111055797A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/0307—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for using generators driven by a machine different from the vehicle motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Abstract

The invention relates to an electric automobile accessory drive system, which comprises: the system comprises a traction motor, a gear box, a driving shaft, an accessory motor and an accessory product, wherein the traction motor drives the driving shaft to rotate through the gear box, the accessory motor drives the accessory product to work, and the accessory product at least comprises one of a compressor, a water pump, an air pump, a vacuum pump and a steering pump; when the electric automobile runs at a reduced speed, the kinetic energy of the electric automobile drives at least one of the accessory motor, the traction motor and the accessory product to operate. The accessory motor of the electric automobile accessory driving system can recover kinetic energy of an electric automobile when the electric automobile decelerates, and can drive the accessory product to work and also drive the electric automobile to run. Therefore, the existence of the accessory motor can recover more energy, thereby improving the energy utilization efficiency.

Description

Electric automobile accessory driving system
Technical Field
The invention relates to the field of automobile systems, in particular to an electric automobile accessory driving system.
Background
The low carbon, energy saving and environmental protection are the hot topics in the world at present, and are also the development directions of automobile technologies, and the electric automobile is the future trend. However, the technical development of the electric vehicle is still in the early stage, and one of the biggest challenges is to make the driving distance short, especially in the case of working of the air conditioning system in summer and winter. Some researches on pure electric vehicles in the market find that the air-conditioning refrigeration in summer can cause the driving mileage to be shortened by 15-30%, and the air-conditioning heating in winter can cause the driving mileage to be shortened by 30-50%. This seriously affects the mileage of the electric vehicle.
The conventional electric vehicles provide resistance torque through a generator to recover braking energy or vehicle kinetic energy. However, only about 30% of the braking energy can be recovered due to factors limited by battery state of charge, maximum current allowed, maximum resistive torque that can be provided, and control strategy. The remaining energy is wasted.
The problem of short driving mileage of the electric automobile is solved, and besides the development of battery technology, the improvement of the battery capacity and the improvement of the energy utilization rate are key directions. There are two general efforts to improve energy efficiency.
On one hand, the method is used for utilizing kinetic energy and recovering braking energy, and the important points are the development of braking strategies and algorithms and the storage of regenerated electric energy. Related art such as US patent US20180093573 and chinese patent CN 105904972. US patent 20180093573 and chinese patent CN105904972 are both braking energy recovery technologies, mainly used for collecting braking or gliding energy.
On the other hand, the heat pump technology is mainly researched. Related art such as european patent EP2013157379 and chinese patent CN 201710088705. The method mainly achieves the purposes of saving energy and increasing the endurance mileage by improving the operating efficiency of an air conditioning system and improving the efficiency by adopting a heat pump technology.
Research into accessory drive systems has focused primarily on both drive efficiency and drive cost. The conventional techniques mainly have the following disadvantages.
1. The compressor is driven by an alternating current motor, and the vehicle is driven by a traction motor and the alternating current motor in a coupling way; the deceleration phase and the recovery of energy from the non-driven shaft are not possible, nor are the torques distributed and controlled.
2. An automobile driving shaft is adopted to drive accessory products (mainly comprising an air conditioner compressor, a water pump, a valve and the like), and the accessory products are driven by utilizing the kinetic energy of the automobile in a deceleration stage; in the parking stage, the accessory product is driven by the motor; energy recovery from non-driven shafts is not possible, nor is torque distributed and controlled.
3. When an accessory driving system of an internal combustion locomotive structure is adopted, the kinetic energy is utilized to drive a compressor and a generator in a deceleration stage; in the acceleration stage, a motor is adopted to drive a compressor; in the normal driving stage, a driving shaft drives a compressor; the use of electric motors to drive the vehicle is not achieved, nor is torque distributed and controlled.
4. The accessory system and the driving system are separated, so that the motor cannot drive the vehicle, and the kinetic energy utilization and the braking torque distribution and control cannot be realized.
5. The compressor is directly driven by the traction motor, the coupling of a vehicle driving system and an accessory system cannot be realized, and the distribution and control of kinetic energy and braking torque cannot be utilized.
Disclosure of Invention
The invention provides an electric automobile accessory drive system, which comprises: the system comprises a traction motor, a gear box, a driving shaft, an accessory motor and an accessory product, wherein the traction motor drives the driving shaft to rotate through the gear box, the accessory motor drives the accessory product to work, and the accessory product at least comprises one of a compressor, a water pump, an air pump, a vacuum pump and a steering pump; when the electric automobile runs at a reduced speed, the kinetic energy of the electric automobile drives at least one of the accessory motor, the traction motor and the accessory product to operate
In one embodiment, the accessory motor and the accessory product are connected with the gear box, when the electric automobile runs at high torque, the accessory motor and the traction motor jointly drive the gear box to rotate, and when the electric automobile runs at reduced speed, the kinetic energy of the electric automobile drives the accessory motor to generate power, and the traction motor drives the accessory product to operate.
In one embodiment, the electric vehicle further comprises a non-driving shaft, and the non-driving shaft and the driving shaft are respectively connected with different wheels of the electric vehicle; the accessory motor and the accessory product are connected with a non-driving shaft of the electric automobile, and when the electric automobile runs at a reduced speed, the kinetic energy of the electric automobile drives the accessory motor and the accessory product to operate through the non-driving shaft.
In one embodiment, the accessory products are connected with the gear box, and the accessory motor drives the accessory products to operate; when the electric automobile runs at a reduced speed, the kinetic energy of the electric automobile drives the accessory product.
In one embodiment, a clutch is connected between the accessory product and the gearbox.
In one embodiment, the accessory products are each coupled to the traction motor, and the accessory motors are coupled to the accessory products.
In one embodiment, the accessory motor drives the accessory product to operate when the electric vehicle runs in a reverse mode or stops running.
In one embodiment, the accessory motor and the accessory product are integrated together to form an assembled module.
In one embodiment, the electric vehicle accessory drive system further comprises a valve coupled to the accessory motor or accessory product, the accessory motor or accessory product driving the valve to rotate.
In one embodiment, the traction motor is coupled to the gearbox via a clutch.
The accessory driving system of the electric automobile is provided with the accessory motor, and the accessory motor can recover kinetic energy of the electric automobile when the electric automobile decelerates, can drive the accessory product to work and can also drive the electric automobile to run. Therefore, the existence of the accessory motor can recover more energy, thereby improving the energy utilization efficiency.
Drawings
FIG. 1 is a schematic diagram of an electric vehicle accessory drive system according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of an electric vehicle accessory drive system according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of an electric vehicle accessory drive system according to a third embodiment of the present invention;
FIG. 4 is a schematic diagram of an electric vehicle accessory drive system according to a fourth embodiment of the present invention;
FIG. 5 is a schematic view of an electric vehicle accessory drive system according to a fifth embodiment of the present invention;
fig. 6 is a schematic diagram of an electric vehicle accessory drive system according to a sixth embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Example one
Referring to fig. 1, the embodiment provides an electric vehicle accessory driving system. This electric automobile annex actuating system includes: traction motor 112, gearbox 116, clutch 114, differential 118, drive shaft 111, accessory motor 132, and accessory product 134. The traction motor 112 drives the drive shaft 111 to rotate through the gearbox 116, and the accessory motor 132 drives the accessory product 134 to work, wherein the accessory product 134 comprises a compressor, a water pump, an air pump, a vacuum pump and a steering pump. When the electric vehicle runs at a reduced speed, the kinetic energy of the electric vehicle drives the accessory motor 132, the traction motor 112 and the accessory product 134 to operate.
Specifically, the electric automobile accessory driving system is applied to an electric automobile. The electric vehicle includes wheels 162, and the wheels 162 are connected to the drive shaft 111. Drive shaft 111 is connected to differential 118, and differential 118 is connected to gearbox 116. The electric vehicle further includes a clutch 114, and the traction motor 112 is connected to a gearbox 116 through the clutch 114. The connection here is a mechanical connection, as will be known to the person skilled in the art. Rotation of traction motor 112 transfers power to gearbox 116 when clutch 114 is engaged, which in turn transfers power to differential 118, which in turn drives rotation of wheels 162 via drive shaft 111. Thus, the electric automobile can run.
The electric vehicle further comprises a heat exchanger 142, and the heat exchanger 142 can be used for realizing heat exchange between the air conditioner or heat pump system and the crew compartment, can also be used for realizing heat exchange between the air conditioner or heat pump system and the outside of the electric vehicle, and can also be used for realizing heat exchange between the air conditioner or heat pump system and a cooling system or a heating system of the power assembly.
The electric vehicle also includes a waste heat storage and utilization system 144 for storing and reusing waste heat generated by the electric vehicle. The electric vehicle also includes a battery motor controller 146 for controlling and managing the battery and the motor (e.g., traction motor) of the electric vehicle. Additionally, in this embodiment, the accessory product 134 includes a compressor that is part of the air conditioning system and a water pump. The electric vehicle further includes a valve 136 for controlling the connection and disconnection of the air passage, the electric circuit, the water passage, and the like required in the electric vehicle. The rotation of the valve 136 may be driven by the attachment motor 132, the attachment product 134, or by a solenoid, here the attachment product 134.
Those skilled in the art will appreciate that the electric vehicle may also include other systems or components, and the specific structure of these systems and components is not limited to that described above. Those skilled in the art may change or add or subtract the above systems and components according to actual design requirements.
With continued reference to FIG. 1, the electric vehicle accessory drive system further includes an accessory motor 132 and an electronic control unit 122. An accessory motor 132 is connected to the gearbox 116 and an accessory product 134. The accessory product 134 is connected to the gearbox 116 and the valve 136. The accessory motor 132 may drive the accessory product 134 and the gearbox 116 to rotate. The gear box 116 can drive the accessory product 134 and the accessory motor 132 to operate. The electronic control unit may control the operation of the accessory motor 132 and the accessory product. In this embodiment, the gear case 116, the accessory product 134, the accessory motor 132, the valve 132, and the ecu 12 are integrated together to form an assembly module, which facilitates assembly. Of course, they may be separately provided in other embodiments, thereby facilitating the overall layout of the electric vehicle.
How the electric vehicle accessory drive system operates on an electric vehicle will now be described.
During the deceleration stage of the vehicle, i.e. during deceleration driving, the electric vehicle can utilize the kinetic energy of the vehicle to drive the traction motor 112 and the accessory motor 132 to generate power and drive the accessory products 134 (compressor, water pump) to work, at this time, the kinetic energy of the electric vehicle can be effectively utilized, a part of the kinetic energy is converted into electric energy by the traction motor and the accessory motors, and a part of the kinetic energy is used for driving the accessory products 134 to work.
During low torque driving of the vehicle, the clutch will block the transmission between the traction motor 112 and the gear box 116, and the accessory motor 132 drives the vehicle and the accessory 134 simultaneously, thus improving the energy efficiency of the whole vehicle.
During high torque driving phases of the vehicle (which typically correspond to vehicle acceleration phases or uphill phases, etc.), the traction motor 112 and the accessory motor 132 simultaneously drive the vehicle, thereby increasing the maximum drive torque of the vehicle. In this way, the vehicle has better dynamic performance.
During a vehicle reverse or parking phase, the accessory motor 132 drives the accessory product 134 to operate.
During other normal driving phases, the traction motor 112 drives the vehicle and the accessory product 134 simultaneously.
The working state of the electric automobile accessory drive system depends on the control strategy requirement of a high-level system, and the electric automobile accessory drive system can be designed according to actual needs.
The accessory motor 132 is added in the electric automobile accessory driving system, so that the vehicle can still drive the accessory system to operate in a stop state, and the accessory motor 132 can drive the accessory product 134 and the vehicle, so that power distribution is convenient, and the energy utilization efficiency is improved. This example makes the accessory product 134, accessory motor 132, etc. a standard modular system for ease of installation and cost reduction. Because the accessory driving system of the electric automobile can utilize the wasted kinetic energy of the automobile to drive the accessory product 134 to work, additional energy saving can be realized; utilizing additional kinetic energy to drive the accessory product 134 allows for greater braking energy recovery. In addition, the traction motor 112 and the transmission system of the electric automobile accessory driving system adopt a coupling design, so that the vibration stimulation of the traction motor 112 is reduced, and the noise vibration performance is improved.
Example two
Referring to fig. 2, the embodiment provides an electric vehicle accessory driving system. The electric vehicle accessory drive system of the second embodiment is similar to the electric vehicle accessory drive system of the first embodiment. The following description will focus primarily on the differences.
In this embodiment, the electric vehicle accessory drive system also includes a traction motor 112, a gearbox 116, a clutch 114, a differential 118, a drive shaft 111, an accessory motor 132, an accessory product 134, an electronic control unit 122, and the like. The traction motor 112 and the accessory product 134 are distributed on both sides of the gearbox 116. The accessory products 134 include air pumps, vacuum pumps, and steering pumps. The accessory product 134 is integrated with the accessory motor 132, the gearbox 116, the clutch 114, the electronic control unit 122, etc. to form an assembled module. The electric vehicle further includes a braking system 152, a chassis system 154, and a steering system 156. The braking system 152, the chassis system 154 and the steering system 156 are all connected to an assembly module formed by the accessory product 134, the gear boxes, 116, the clutch 114, the electronic control unit 122, etc., to cooperate with each other to perform the corresponding functions.
EXAMPLE III
Referring to fig. 3, the embodiment provides an electric vehicle accessory driving system. The electric vehicle accessory drive system of the third embodiment is similar to the electric vehicle accessory drive system of the first embodiment. The following description will focus primarily on the differences.
In this embodiment, the electric vehicle accessory drive system also includes a traction motor 112, a gearbox 116, a clutch 114, a differential 118, a drive shaft 111, an accessory motor 132, an accessory product 134, an electronic control unit 122, and the like. The accessory product 134 includes a compressor and a water pump, and the electric vehicle accessory drive system further includes a valve 136. The accessory product 134 is integrated with the accessory motor 132, the valve 136, the electronic control unit 122, etc. to form an assembled module. An assembled module of accessory product 134, accessory motor 132, etc. is disposed on the non-drive shaft. The traction motor 112 and the gearbox 116 are disposed on the drive shaft and transmit power to the drive shaft through a differential 118. The non-driving shaft and the driving shaft are respectively connected with different wheels of the electric automobile.
The electric automobile accessory driving system has different working modes under different working conditions, and concretely comprises the following steps.
During the deceleration phase of the vehicle, i.e. during deceleration driving, the electric vehicle can utilize the kinetic energy of the vehicle to drive the traction motor 112 and the accessory motor 132 to generate power and drive the accessory product 134 to operate, at this time, the kinetic energy of the electric vehicle can be effectively utilized, a part of the kinetic energy is converted into electric energy by the traction motor and the accessory motor, and a part of the kinetic energy is used for driving the accessory product 134 to operate.
During low torque driving phases of the vehicle, the accessory motor 132 drives the vehicle and the accessory products 134, which can improve the energy efficiency of the entire vehicle.
During high torque phases of the vehicle, traction motor 112 drives the vehicle and accessory motor 132 drives the vehicle and accessory product 134.
During a vehicle reverse or parking phase, the accessory motor 132 drives the accessory product 134 to operate.
As can be appreciated by those skilled in the art, the operating state of the electric vehicle accessory drive system depends on the control strategy requirements of the high-level system, which can be designed according to actual needs.
Example four
Referring to fig. 4, the embodiment provides an electric vehicle accessory driving system. The electric vehicle accessory drive system of the fourth embodiment is similar to the electric vehicle accessory drive system of the first embodiment. The following description will focus primarily on the differences.
In this embodiment, the electric vehicle accessory drive system also includes a traction motor 112, a gearbox 116, a clutch 114, a differential 118, a drive shaft 111, an accessory motor 132, an accessory product 134, an electronic control unit 122, and the like. The accessory products 134 include air pumps, vacuum pumps, and steering pumps. The accessory product 134 is integrated with the accessory motor 132, the electronic control unit 122, etc. to form an assembled module. The assembled module of accessory product 134 with accessory motor 132, etc. has a controller interface, a high voltage electrical interface, and other interfaces. An assembled module of accessory product 134, accessory motor 132, etc. is disposed on the non-drive shaft. The traction motor 112 and the gearbox 116 are disposed on the drive shaft and transmit power to the drive shaft through a differential 118.
The electric vehicle further includes a braking system 152, a chassis system 154, and a steering system 156. The braking system 152, the chassis system 154 and the steering system 156 are all connected to an assembly module formed by the accessory product 134, the gear boxes, 116, the clutch 114, the electronic control unit 122, etc., to cooperate with each other to perform the corresponding functions.
EXAMPLE five
Referring to fig. 5, the embodiment provides an electric vehicle accessory driving system. The electric vehicle accessory drive system of the fifth embodiment is similar to the electric vehicle accessory drive system of the first embodiment. The following description will focus primarily on the differences.
In this embodiment, the electric vehicle accessory drive system also includes a traction motor 112, a gearbox 116, a clutch 114, a differential 118, a drive shaft 111, an accessory motor 132, an accessory product 134, an electronic control unit 122, and the like. The accessory product 134 is integrated with the accessory motor 132, the valve 136, the electronic control unit 122, etc. to form an assembled module. The assembled module formed by the accessory product 134 and the accessory motor 132 has a controller interface, a high voltage electrical interface, a coolant interface, and other interfaces. An assembled module of accessory products 134, accessory motors 132, etc. is provided on the side of the gearbox 116 opposite the traction motors 112. A gear box 116 is disposed on the drive shaft and transmits power to the drive shaft through a differential 118.
The accessory product 134 is coupled to the gearbox 116 via the clutch 114. A clutch may or may not be provided between the gearbox 116 and the traction motor 112. The provision of the clutch 114 between the accessory product 134 and the gearbox 116 facilitates control of whether the accessory product 134 is in power communication with the gearbox 116. Therefore, more choices can be provided for the electric vehicle, and the control strategy requirements of a high-level system can be better met.
EXAMPLE six
Referring to fig. 6, the embodiment provides an electric vehicle accessory driving system. The electric vehicle accessory drive system of the sixth embodiment is similar to the electric vehicle accessory drive system of the first embodiment. The following description will focus primarily on the differences.
In this embodiment, the electric vehicle accessory drive system also includes a traction motor 112, a gearbox 116, a clutch 114, a differential 118, a drive shaft 111, an accessory motor 132, an accessory product 134, an electronic control unit 122, and the like. The accessory product 134 is integrated with the accessory motor 132, the valve 136, the electronic control unit 122, etc. to form an assembled module. The assembled module formed by the accessory product 134 and the accessory motor 132 has a controller interface, a high voltage electrical interface, a coolant interface, and other interfaces. An assembled module of accessory products 134, accessory motors 132, etc. is connected to the traction motor 112. A gear box 116 is disposed on the drive shaft and transmits power to the drive shaft through a differential 118.
The traction motor 112 may drive a drive shaft and may also drive an accessory product 134. When the vehicle is traveling at a reduced speed or traveling in a downhill braking condition, the kinetic energy of the electric vehicle may be transferred to the traction motor 112 and may also be transferred to the accessory product 134 and the accessory motor 132 via the traction motor 112. Therefore, the accessory motor can also generate electricity, so that more braking energy can be conveniently recovered, and the driving mileage of the vehicle is improved.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims (10)

1. An electric vehicle accessory drive system, comprising: the system comprises a traction motor, a gear box, a driving shaft, an accessory motor and an accessory product, wherein the traction motor drives the driving shaft to rotate through the gear box, the accessory motor drives the accessory product to work, and the accessory product at least comprises one of a compressor, a water pump, an air pump, a vacuum pump and a steering pump; when the electric automobile runs at a reduced speed, the kinetic energy of the electric automobile drives at least one of the accessory motor, the traction motor and the accessory product to operate.
2. The electric vehicle accessory drive system of claim 1, wherein the accessory motor and the accessory product are both connected to the gearbox, the accessory motor and the traction motor jointly drive the gearbox to rotate when the electric vehicle is running at high torque, and the kinetic energy of the electric vehicle drives the accessory motor to generate power and the traction motor drives the accessory product to operate when the electric vehicle is running at a reduced speed.
3. The electric vehicle accessory drive system of claim 1, further comprising a non-drive axle, the non-drive axle and the drive axle each being coupled to a different wheel of the electric vehicle; the accessory motor and the accessory product are connected with a non-driving shaft of the electric automobile, and when the electric automobile runs at a reduced speed, the kinetic energy of the electric automobile drives the accessory motor and the accessory product to operate through the non-driving shaft.
4. The electric vehicle accessory drive system of claim 1, wherein the accessory products are each connected to the gearbox, and the accessory motor drives the accessory products to operate; when the electric automobile runs at a reduced speed, the kinetic energy of the electric automobile drives the accessory product to operate.
5. The electric vehicle accessory drive system of claim 4, wherein a clutch is connected between the accessory product and the gearbox.
6. The electric vehicle accessory drive system of claim 1, wherein the accessory products are each coupled to the traction motor, and the accessory motors are coupled to the accessory products.
7. The electric vehicle accessory drive system of any one of claims 1 to 6, wherein the accessory motor drives the accessory product to operate when the electric vehicle is driven in reverse or stopped.
8. The electric vehicle accessory drive system of claim 7, wherein the accessory motor and the accessory product are integrated together to form an assembled module.
9. The electric vehicle accessory drive system of claim 8, further comprising a valve coupled to the accessory motor or accessory product, the accessory motor or accessory product driving the valve in rotation.
10. The electric vehicle accessory drive system of claim 9, wherein the traction motor is coupled to the gearbox via a clutch.
CN201911398797.4A 2019-12-30 2019-12-30 Electric automobile accessory driving system Pending CN111055797A (en)

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Application Number Priority Date Filing Date Title
CN201911398797.4A CN111055797A (en) 2019-12-30 2019-12-30 Electric automobile accessory driving system

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Application Number Priority Date Filing Date Title
CN201911398797.4A CN111055797A (en) 2019-12-30 2019-12-30 Electric automobile accessory driving system

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797884A (en) * 2010-04-20 2010-08-11 上海交通大学 Duel-clutch stepless speed change series parallel hybrid power system
US20120211291A1 (en) * 2011-02-17 2012-08-23 Richard Black Electric Car Systems
CN103042942A (en) * 2012-12-24 2013-04-17 联合汽车电子有限公司 EREV (extended range electric vehicle) air conditioning system with synchronizer and control method thereof
CN104972903A (en) * 2015-07-15 2015-10-14 包头市北工机械有限公司 Motor drive system with automatic switching capacity and control method thereof
CN106915230A (en) * 2017-02-22 2017-07-04 长安大学 The electrical accessory integrated morphology and its control method of a kind of pure electric automobile
CN109693548A (en) * 2019-01-22 2019-04-30 浙江吉利控股集团有限公司 A kind of energy reutilization system carrying out Brake energy recovery
CN109866614A (en) * 2017-12-05 2019-06-11 莱顿汽车部件（苏州）有限公司 A kind of electric vehicle and its accessory drive system
CN110450620A (en) * 2019-06-20 2019-11-15 无锡明恒混合动力技术有限公司 A kind of the parallel-axis type hybrid power system and its control method of low cost

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797884A (en) * 2010-04-20 2010-08-11 上海交通大学 Duel-clutch stepless speed change series parallel hybrid power system
US20120211291A1 (en) * 2011-02-17 2012-08-23 Richard Black Electric Car Systems
CN103042942A (en) * 2012-12-24 2013-04-17 联合汽车电子有限公司 EREV (extended range electric vehicle) air conditioning system with synchronizer and control method thereof
CN104972903A (en) * 2015-07-15 2015-10-14 包头市北工机械有限公司 Motor drive system with automatic switching capacity and control method thereof
CN106915230A (en) * 2017-02-22 2017-07-04 长安大学 The electrical accessory integrated morphology and its control method of a kind of pure electric automobile
CN109866614A (en) * 2017-12-05 2019-06-11 莱顿汽车部件（苏州）有限公司 A kind of electric vehicle and its accessory drive system
CN109693548A (en) * 2019-01-22 2019-04-30 浙江吉利控股集团有限公司 A kind of energy reutilization system carrying out Brake energy recovery
CN110450620A (en) * 2019-06-20 2019-11-15 无锡明恒混合动力技术有限公司 A kind of the parallel-axis type hybrid power system and its control method of low cost

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