CN114104241A - Double-motor hybrid power transmission system of outboard engine - Google Patents
Double-motor hybrid power transmission system of outboard engine Download PDFInfo
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- CN114104241A CN114104241A CN202111164991.3A CN202111164991A CN114104241A CN 114104241 A CN114104241 A CN 114104241A CN 202111164991 A CN202111164991 A CN 202111164991A CN 114104241 A CN114104241 A CN 114104241A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 130
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 31
- 238000010248 power generation Methods 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 5
- 230000001133 acceleration Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
- B63H20/14—Transmission between propulsion power unit and propulsion element
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
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- Ocean & Marine Engineering (AREA)
- Arrangement Of Transmissions (AREA)
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- Hybrid Electric Vehicles (AREA)
Abstract
The invention discloses a double-motor hybrid power transmission system of an outboard engine, which comprises a generator, a driving motor, an engine, a clutch, a gear transmission module, a hydraulic mechanism and an electric control mechanism, wherein the gear transmission module comprises a power generation transmission unit and a driving transmission unit, the power generation transmission unit comprises an engine input shaft and a generator shaft, and the driving transmission unit comprises a driving motor shaft, a transmission intermediate shaft and a main reduction differential assembly; the engine and the generator are driven to increase speed through a primary gear; the generator and the driving motor are arranged in parallel; the driving motor transmits power to the differential through the main speed reducer, and the differential transmits the power to the outboard engine. When the engine is directly driven, the power of the engine is directly transmitted to the transmission intermediate shaft through the generator shaft and the clutch without being meshed through the gear pair, so that the transmission efficiency is improved, the requirements on the machining precision and the installation precision of the gear pair of the transmission intermediate shaft are reduced, and meanwhile, the power transmission system is simple in structure and the failure rate of the system is reduced.
Description
Technical Field
The invention relates to the technical field of outboard engine power transmission, in particular to a dual-motor hybrid power transmission system of an outboard engine.
Background
The outboard engine is hung outside the ship board and on the tail plate, the engine is arranged at the top, the crankshaft of the engine is connected with the vertical shaft, then the cross shaft finally outputs the engine to the propeller, when the outboard engine steers, the whole engine swings left and right along with the steering device, and the propeller directly steers along with the driving device, so that the outboard engine has strong flexibility, simple installation of the whole engine and convenient carrying, and is widely applied to small yachts, inflatable power boats, assault boats, various fishing boats and the like. However, the conventional gasoline and diesel outboard engines have high noise, and the electric outboard engine electricity storage technology which is only connected with the storage battery externally cannot meet the requirement of high endurance, and in recent years, hybrid power driving systems and working modes thereof are gradually the research hotspots. However, in the existing engine transmission scheme, a gear on the transmission intermediate shaft is simultaneously meshed with the shaft of the driving motor and the overrunning driving gear of the engine, the transmission scheme has high requirements on the machining precision and the installation precision of a gear pair, and is easy to break down in actual operation, and meanwhile, the overrunning clutch bearing the power coupling function is connected with the overrunning driving gear through a spline, so that the structure is complex.
Disclosure of Invention
The invention mainly aims to solve the problems that the existing outboard engine hybrid power transmission scheme has high requirements on the machining precision and the installation precision of a gear pair and the structure of a power transmission system is complex, and provides a dual-motor hybrid power transmission system of an outboard engine.
In order to achieve the purpose, the invention adopts the following technical scheme:
a double-motor hybrid power transmission system of an outboard engine comprises a generator, a driving motor, an engine, a clutch, a gear transmission module, a hydraulic mechanism and an electric control mechanism, wherein the gear transmission module comprises a power generation transmission unit and a running transmission unit, the power generation transmission unit comprises an engine input shaft and a generator shaft, and the running transmission unit comprises a driving motor shaft, a transmission intermediate shaft and a main reduction differential assembly; the engine and the generator are driven to increase speed through a primary gear; the generator is arranged in parallel with the driving motor; the driving motor transmits power to the differential through the main speed reducer, and the differential transmits the power to the outboard engine. The invention provides a double-motor hybrid power transmission system of an outboard engine, which comprises a generator, a driving motor, an engine, a clutch, a gear transmission module, a hydraulic mechanism and an electric control mechanism, wherein the gear transmission module comprises a power generation transmission unit and a driving transmission unit, the power generation transmission unit comprises an engine input shaft and a generator shaft, the driving transmission unit comprises a driving motor shaft, a transmission intermediate shaft and a main reduction differential assembly, and the main reduction differential assembly comprises a main reducer and a differential. The engine and the generator are driven to increase speed through the primary gear, the generator and the driving motor are arranged in parallel, the power of the driving motor is transmitted to the transmission intermediate shaft through the driving motor shaft and then transmitted to the differential mechanism through the main speed reducer, and finally the differential mechanism transmits the power to the outboard engine. The clutch is arranged on the generator shaft, the clutch shell is fixedly connected with the generator shaft, the driving plate of the clutch is in splined connection with the clutch shell, and the friction plate of the clutch is in splined connection with the transmission intermediate shaft and is used for controlling the connection and the separation of the generator shaft, the driving motor shaft and the transmission intermediate shaft so as to realize different driving modes of the system. When the engine is directly driven, the power of the engine is directly transmitted to the transmission intermediate shaft through the generator shaft and the clutch without being meshed through the gear pair, so that the transmission efficiency is improved, the requirements on the machining precision and the installation precision of the gear pair of the transmission intermediate shaft are reduced, and meanwhile, the power transmission system is simple in structure and the failure rate of the system is reduced.
Preferably, the two-motor hybrid transmission has an electric-only mode, a series hybrid mode, and a parallel hybrid mode.
Preferably, in the pure electric mode, the engine and the generator do not work, the clutch is disconnected, the power of the driving motor is transmitted to the transmission intermediate shaft through the driving motor shaft and then transmitted to the differential through the main speed reducer, and the differential transmits the power to the outboard engine. When the system is in a pure electric mode, the engine and the generator do not work, the clutch is disconnected, the power of the driving motor is transmitted to the transmission intermediate shaft through the driving motor shaft and then transmitted to the differential mechanism through the main speed reducer, the differential mechanism transmits the power to the propeller of the outboard engine through the driving half shaft, the propeller is pushed to rotate to drain water, and the outboard engine starts to work.
Preferably, in the series hybrid mode, the engine operates, the clutch is disconnected, the power of the engine is not transmitted to the transmission intermediate shaft, the engine drives the generator to generate power by accelerating through the primary gear, the generator supplies power to the driving motor, the power of the driving motor is transmitted to the transmission intermediate shaft through the driving motor shaft and then transmitted to the differential through the main reducer, and the differential transmits the power to the outboard engine. When the system is in a series hybrid power mode, the engine works, the clutch is disconnected, the power of the engine is not transmitted to the transmission intermediate shaft, the engine drives the generator to generate power through the speed increase of the primary gear, the generator supplies power to the driving motor, the power of the driving motor is transmitted to the transmission intermediate shaft through the driving motor shaft and then transmitted to the differential mechanism through the main speed reducer, the differential mechanism transmits the power to the propeller of the outboard engine through the driving half shaft to push the propeller to rotate for draining, and the outboard engine starts to work.
Preferably, in the parallel hybrid mode, the engine operates, the clutch is engaged, the engine transmits power to the generator shaft by the primary gear acceleration, the clutch transmits the power to the transmission intermediate shaft, the power is transmitted to the differential by the main reducer, and the differential transmits the power to the outboard engine. When the system is in a parallel hybrid power mode, the engine works, the clutch is combined, after the engine transmits power to the shaft of the generator through the speed increase of the primary gear, the clutch transmits the power to the transmission intermediate shaft and then to the differential mechanism through the main speed reducer, the differential mechanism transmits the power to the propeller of the outboard engine through the driving half shaft, the propeller is pushed to rotate to drain water, and the outboard engine starts to work.
Preferably, in the parallel hybrid mode, the driving motor has three states of idling, auxiliary driving and energy recovery. In the parallel hybrid mode, the driving motor has three states, namely idling, auxiliary driving and energy recovery. When the driving motor is in an idling state, the driving motor does not output torque and does not recover energy, after the engine transmits power to the shaft of the generator through the primary gear acceleration, the clutch transmits the power to the transmission intermediate shaft and then transmits the power to the differential mechanism through the main speed reducer, and the differential mechanism transmits the power to the outboard engine through the driving half shaft; when the driving motor is in an auxiliary driving state, the driving motor outputs torque and drives the engine to run together, after the engine transmits power to the generator shaft through primary gear acceleration, the clutch transmits the power to the transmission intermediate shaft, meanwhile, the power of the driving motor is transmitted to the transmission intermediate shaft through the driving motor shaft and is coupled with the power of the engine, the coupled power is transmitted to the differential mechanism through the main speed reducer, and the differential mechanism transmits the power to the outboard engine through the driving half shaft; when the driving motor is in an energy recovery state, the driving motor does not output torque and recovers energy at the same time, after the engine transmits power to the generator shaft through the primary gear acceleration, the clutch transmits the power to the transmission intermediate shaft and the driving motor respectively, the power transmitted to the transmission intermediate shaft is transmitted to the differential mechanism through the main speed reducer, and the differential mechanism transmits the power to the outboard engine through the driving half shaft.
Preferably, the main speed reducer is a two-stage parallel shaft cylindrical gear. A main speed reducer of the system adopts two-stage parallel shaft cylindrical gears for reducing the rotating speed and increasing the torque.
Preferably, the clutch is arranged on the generator shaft, and the clutch housing is fixedly connected with the generator shaft. After the engine of the system transmits power to the generator shaft through the primary gear acceleration, the clutch arranged on the generator shaft transmits the power to the transmission intermediate shaft or the driving motor.
Preferably, the clutch driving plate is splined to the clutch housing. The clutch driving plate of the system is in splined connection with the clutch shell and is used for controlling the connection and the separation of the generator shaft, the driving motor shaft and the transmission intermediate shaft so as to realize different driving modes of the system, and the system is simple in structure.
Preferably, the clutch friction plate is in splined connection with the transmission intermediate shaft. The clutch friction plate of the system is in splined connection with the transmission intermediate shaft and is used for controlling the connection and the separation of the generator shaft, the drive motor shaft and the transmission intermediate shaft so as to realize different drive modes of the system, and the system is simple in structure.
Therefore, the invention has the advantages that:
(1) when the engine is directly driven, the power of the engine is directly transmitted to the transmission intermediate shaft through the generator shaft and the clutch without being meshed through the gear pair, so that the transmission efficiency is improved, the requirements on the machining precision and the installation precision of the gear pair of the transmission intermediate shaft are lowered, and meanwhile, the power transmission system is simple in structure and the failure rate of the system is lowered;
(2) and a dual-motor hybrid power mode is adopted, so that the cruising ability is improved, and the environmental pollution is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a power transmission path diagram in the electric-only mode in the embodiment of the present invention.
Fig. 3 is a power transmission path diagram in the series hybrid mode in the embodiment of the invention.
Fig. 4 is a power transmission path diagram in the idle state of the driving motor in the parallel hybrid mode in the embodiment of the present invention.
Fig. 5 is a power transmission path diagram in the auxiliary driving state of the driving motor in the parallel hybrid mode in the embodiment of the present invention.
Fig. 6 is a power transmission path diagram in a state where the driving motors recover energy in the parallel hybrid mode according to the embodiment of the present invention.
1. The engine comprises an engine input shaft 2, a generator shaft 3, a generator 4, a clutch 5, a transmission intermediate shaft 6, a differential 7, a driving motor shaft 8, a driving motor 9, an engine 10 and an outboard engine.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
As shown in fig. 1, a dual-motor hybrid power transmission system of an outboard engine comprises a generator 3, a driving motor 8, an engine 9, a clutch 4, a gear transmission module, a hydraulic mechanism and an electric control mechanism, wherein the gear transmission module comprises a power generation transmission unit and a driving transmission unit, the power generation transmission unit comprises an engine input shaft 1 and a generator shaft 2, and the driving transmission unit comprises a driving motor shaft 7, a transmission intermediate shaft 5 and a main reduction differential assembly; the engine 9 and the generator 3 are driven by a primary gear to increase speed; the generator 3 is arranged in parallel with the driving motor 8; the drive motor 8 transmits power to the differential 6 through the final drive, and the differential 6 transmits the power to the outboard motor 10. The invention provides a double-motor hybrid power transmission system of an outboard engine, which comprises a generator 3, a driving motor 8, an engine 9, a clutch 4, a gear transmission module, a hydraulic mechanism and an electric control mechanism, wherein the gear transmission module comprises a power generation transmission unit and a driving transmission unit, the power generation transmission unit comprises an engine input shaft 1 and a generator shaft 2, the driving transmission unit comprises a driving motor shaft 7, a transmission intermediate shaft 5 and a main reduction differential assembly, the main reduction differential assembly comprises a main speed reducer and a differential 6, and the main speed reducer adopts two-stage parallel shaft cylindrical gears. The engine 9 and the generator 3 are accelerated through the transmission of a primary gear, the generator 3 and the driving motor 8 are arranged in parallel, the power of the driving motor 8 is transmitted to the transmission intermediate shaft 5 through the driving motor shaft 7 and then transmitted to the differential mechanism 6 through the main speed reducer, and finally the differential mechanism 6 transmits the power to the outboard engine 10. The clutch 4 is arranged on the generator shaft 2, the clutch shell is fixedly connected with the generator shaft 2, a clutch driving plate is in splined connection with the clutch shell, and a clutch friction plate is in splined connection with the transmission intermediate shaft 5 and used for controlling the connection and the separation of the generator shaft 2, the driving motor shaft 7 and the transmission intermediate shaft 5 so as to realize different driving modes of the system.
2-6, the two-motor hybrid transmission has an electric-only mode, a series hybrid mode, and a parallel hybrid mode.
As shown in fig. 2, in the pure electric mode, the engine 9 and the generator 3 do not work, the clutch 4 is disconnected, the power of the driving motor 8 is transmitted to the transmission intermediate shaft 5 through the driving motor shaft 7 and then transmitted to the differential 6 through the main reducer, and the differential 6 transmits the power to the outboard engine 10. When the system is in a pure electric mode, the engine 9 and the generator 3 do not work, the clutch 4 is disconnected, the power of the driving motor 8 is transmitted to the transmission intermediate shaft 5 through the driving motor shaft 7 and then transmitted to the differential mechanism 6 through the main speed reducer, the differential mechanism 6 transmits the power to the propeller of the outboard engine 10 through the driving half shaft, the propeller is pushed to rotate to drain water, and the outboard engine 10 starts to work.
As shown in fig. 3, in the series hybrid mode, the engine 9 operates, the clutch 4 is disconnected, the power of the engine 9 is not transmitted to the transmission intermediate shaft 5, the engine 9 drives the generator 3 to generate power by increasing the speed through the primary gear, the generator 3 supplies power to the driving motor 8, the power of the driving motor 8 is transmitted to the transmission intermediate shaft 5 through the driving motor shaft 7 and then transmitted to the differential 6 through the main reducer, and the differential 6 transmits the power to the outboard engine 10. When the system is in a series hybrid power mode, the engine 9 works, the clutch 4 is disconnected, the power of the engine 9 is not transmitted to the transmission intermediate shaft 5, the engine 9 drives the generator 3 to generate power by the aid of the primary gear in an acceleration mode, the generator 3 supplies power to the driving motor 8, the power of the driving motor 8 is transmitted to the transmission intermediate shaft 5 through the driving motor shaft 7 and then transmitted to the differential mechanism 6 through the main speed reducer, the differential mechanism 6 transmits the power to the propeller of the outboard engine 10 through the driving half shaft to push the propeller to rotate for draining, and the outboard engine 10 starts to work.
As shown in fig. 4-6, in the parallel hybrid mode, the engine 9 operates, the clutch 4 is engaged, after the engine 9 transmits power to the generator shaft 2 through the primary gear acceleration, the clutch 4 transmits the power to the transmission intermediate shaft 5, and then to the differential 6 through the main reducer, and the differential 6 transmits the power to the outboard engine 10. When the system is in a parallel hybrid power mode, the engine 9 works, the clutch 4 is combined, after the engine 9 transmits power to the generator shaft 2 through primary gear acceleration, the clutch 4 transmits the power to the transmission intermediate shaft 5 and then to the differential mechanism 6 through the main speed reducer, the differential mechanism 6 transmits the power to the propeller of the outboard engine 10 through the driving half shaft, the propeller is pushed to rotate to drain water, and the outboard engine 10 starts to work.
As shown in fig. 4-6, in the parallel hybrid mode, the driving motor 8 has three states of idling, auxiliary driving, and energy recovery. In the parallel hybrid mode, the driving motor 8 has three states, which are idle, auxiliary driving, and energy recovery, respectively. When the driving motor 8 is in an idling state, the driving motor 8 does not output torque and does not recover energy, after the engine 9 transmits power to the generator shaft 2 through primary gear acceleration, the clutch 4 transmits the power to the transmission intermediate shaft 5 and then transmits the power to the differential mechanism 6 through the main speed reducer, and the differential mechanism 6 transmits the power to the outboard engine 10 through the driving half shaft; when the driving motor 8 is in an auxiliary driving state, the driving motor 8 outputs torque and drives the engine 9 to run together, after the engine 9 transmits power to the generator shaft 2 through primary gear acceleration, the clutch 4 transmits the power to the transmission intermediate shaft 5, meanwhile, the power of the driving motor 8 is transmitted to the transmission intermediate shaft 5 through the driving motor shaft 7 and is coupled with the power of the engine 9, the coupled power is transmitted to the differential mechanism 6 through the main speed reducer, and the differential mechanism 6 transmits the power to the outboard engine 10 through the driving half shaft; when the driving motor 8 is in the energy recovery state, the driving motor 8 does not output torque and recovers energy at the same time, after the engine 9 transmits power to the generator shaft 2 through primary gear acceleration, the clutch 4 transmits the power to the transmission intermediate shaft 5 and the driving motor 8 respectively, the power transmitted to the transmission intermediate shaft 5 is transmitted to the differential mechanism 6 through the main speed reducer, and the differential mechanism 6 transmits the power to the outboard engine 10 through the driving half shaft.
Claims (10)
1. The double-motor hybrid power transmission system of the outboard engine is characterized by comprising a generator, a driving motor, an engine, a clutch, a gear transmission module, a hydraulic mechanism and an electric control mechanism, wherein the gear transmission module comprises a power generation transmission unit and a driving transmission unit, the power generation transmission unit comprises an engine input shaft and a generator shaft, and the driving transmission unit comprises a driving motor shaft, a transmission intermediate shaft and a main reduction differential assembly; the engine and the generator are driven to increase speed through a primary gear; the generator is arranged in parallel with the driving motor; the driving motor transmits power to the differential through the main speed reducer, and the differential transmits the power to the outboard engine.
2. The outboard motor dual-motor hybrid transmission system of claim 1, wherein said dual-motor hybrid transmission system has a purely electric mode, a series hybrid mode, and a parallel hybrid mode.
3. The dual-motor hybrid power transmission system of the outboard engine according to claim 2, wherein in the pure electric mode, the engine and the generator do not work, the clutch is disconnected, the power of the driving motor is transmitted to the transmission intermediate shaft through the driving motor shaft and then transmitted to the differential through the main speed reducer, and the differential transmits the power to the outboard engine.
4. The dual-motor hybrid transmission system for the outboard engine as claimed in claim 2, wherein in the series hybrid mode, the engine is operated, the clutch is disconnected, the power of the engine is not transmitted to the transmission intermediate shaft, the engine drives the generator to generate power by the speed increase of the primary gear, the generator supplies power to the driving motor, the power of the driving motor is transmitted to the transmission intermediate shaft through the driving motor shaft and then to the differential through the main reducer, and the differential transmits the power to the outboard engine.
5. The dual-motor hybrid transmission system for the outboard engine as claimed in claim 2, wherein in the parallel hybrid mode, the engine operates, the clutch is engaged, the engine transmits power to the generator shaft through the primary gear step-up, the clutch transmits power to the transmission intermediate shaft, and then to the differential through the main reducer, and the differential transmits power to the outboard engine.
6. The dual-motor hybrid transmission system for an outboard engine according to claim 5, wherein in the parallel hybrid mode, the driving motor has three states of idle, accessory drive and energy recovery.
7. The dual-motor hybrid transmission system for an outboard engine according to claim 1, wherein the final drive is a two-stage parallel shaft spur gear.
8. The dual-motor hybrid transmission system for an outboard engine of claim 1, wherein the clutch is disposed on the generator shaft, and the clutch housing is fixedly connected to the generator shaft.
9. The dual-motor hybrid transmission system for an outboard engine of claim 8, wherein the clutch driving plate is splined to the clutch housing.
10. The dual-motor hybrid transmission system for an outboard engine according to claim 8, wherein the clutch disk is spline-connected to the drive intermediate shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111164991.3A CN114104241A (en) | 2021-09-30 | 2021-09-30 | Double-motor hybrid power transmission system of outboard engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111164991.3A CN114104241A (en) | 2021-09-30 | 2021-09-30 | Double-motor hybrid power transmission system of outboard engine |
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| CN114104241A true CN114104241A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111164991.3A Pending CN114104241A (en) | 2021-09-30 | 2021-09-30 | Double-motor hybrid power transmission system of outboard engine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358160A (en) * | 2011-07-19 | 2012-02-22 | 东风汽车公司 | Driving system of dual-motor driving hybrid electric vehicle |
| CN109986953A (en) * | 2017-12-29 | 2019-07-09 | 比亚迪股份有限公司 | Hybrid electric drive system and vehicle |
| CN209159403U (en) * | 2018-10-31 | 2019-07-26 | 比亚迪股份有限公司 | Hybrid electric drive system and vehicle |
| DE102019102437A1 (en) * | 2019-01-31 | 2020-08-06 | Bayerische Motoren Werke Aktiengesellschaft | Drive train for a motor vehicle and motor vehicle with such a drive train |
| CN214138222U (en) * | 2020-12-01 | 2021-09-07 | 江苏新能源汽车研究院有限公司 | Dual-motor hybrid power driving system |
-
2021
- 2021-09-30 CN CN202111164991.3A patent/CN114104241A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358160A (en) * | 2011-07-19 | 2012-02-22 | 东风汽车公司 | Driving system of dual-motor driving hybrid electric vehicle |
| CN109986953A (en) * | 2017-12-29 | 2019-07-09 | 比亚迪股份有限公司 | Hybrid electric drive system and vehicle |
| CN209159403U (en) * | 2018-10-31 | 2019-07-26 | 比亚迪股份有限公司 | Hybrid electric drive system and vehicle |
| DE102019102437A1 (en) * | 2019-01-31 | 2020-08-06 | Bayerische Motoren Werke Aktiengesellschaft | Drive train for a motor vehicle and motor vehicle with such a drive train |
| CN214138222U (en) * | 2020-12-01 | 2021-09-07 | 江苏新能源汽车研究院有限公司 | Dual-motor hybrid power driving system |
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Application publication date: 20220301 |
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