CN212737732U - Hybrid power coupling system and hybrid electric vehicle - Google Patents
Hybrid power coupling system and hybrid electric vehicle Download PDFInfo
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- CN212737732U CN212737732U CN202021129010.2U CN202021129010U CN212737732U CN 212737732 U CN212737732 U CN 212737732U CN 202021129010 U CN202021129010 U CN 202021129010U CN 212737732 U CN212737732 U CN 212737732U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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Abstract
The utility model relates to a hybrid coupled system, hybrid vehicle, the system includes: the planetary gear train comprises a sun gear, a planet carrier and a gear ring; one end of the clutch is connected with the output end of the engine through the transmission mechanism, and the other end of the clutch is connected with the gear ring; the sun gear is connected with the output end of the driving motor, the planet carrier is connected with the differential mechanism, and the gear ring and the planet carrier are both connected with the brake; the differential is used for being connected with a driving wheel of an automobile; the power split driving mode is entered when the current vehicle speed is less than or equal to a first preset vehicle speed threshold value, and the parallel driving mode is entered when the current vehicle speed is greater than the first preset vehicle speed threshold value. Implement the utility model discloses, adopt power split drive mode when low speed of a motor vehicle, adopt parallelly connected drive mode when high speed of a motor vehicle to compromise the advantage of power split structure and parallelly connected structure.
Description
Technical Field
The utility model relates to a hybrid technical field, concretely relates to hybrid coupled system and hybrid vehicle.
Background
With the stricter and stricter fuel consumption regulations and emission regulations, various manufacturers are dedicated to developing different hybrid power structures meeting market requirements. The common hybrid power structure includes a power splitting structure and a series-parallel structure. The power dividing structure can realize stepless speed change, the smoothness of the automobile is good, the engine can work in a better area even at low speed, and the output mechanical energy can be partially transmitted to the wheel end, so that multiple energy conversion losses are avoided. In addition, the series-parallel connection structure runs in a series connection or pure electric driving mode at low speed, and runs in a parallel connection driving mode at high speed, so that the high-speed economy is better.
In realizing the utility model discloses an in-process, the utility model discloses the people discovers that current hybrid coupled system exists following technical problem at least:
the high speed driving economy of the power splitting arrangement is not as good as the series-parallel arrangement, the low speed series mode economy of the series-parallel arrangement is not as good as the power splitting, and there may be a frustrating feeling with the mode switching process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hybrid coupled system and hybrid vehicle adopt power split drive mode drive car operation when the car low speed of a motor vehicle moves, adopt parallelly connected drive mode drive car operation when the car high speed of a motor vehicle moves to compromise the advantage of power split structure and series-parallel structure.
In a first aspect, an embodiment of the present invention provides a hybrid coupling system, including an engine, a transmission mechanism, a clutch, a planetary gear set, a brake, a driving motor, and a differential mechanism, where the planetary gear set includes a sun gear, a planet carrier, and a gear ring;
the driving part of the clutch is connected with the output end of the engine through the transmission mechanism, and the driven part of the clutch is connected with the gear ring;
the sun gear is connected with the output end of the driving motor, the planet carrier is connected with the differential mechanism, and the gear ring and the planet carrier are both connected with the brake;
the differential is used for being connected with a driving wheel of an automobile and driving the driving wheel to rotate;
when the current battery SOC value is less than a first preset SOC threshold value or the current finished automobile required power is greater than a preset power threshold value, and the current automobile speed is less than or equal to a first preset automobile speed threshold value, starting an engine, starting a driving motor, closing a clutch and disengaging a brake so as to enable the automobile to be in a power split driving mode;
when the current battery SOC value is smaller than a first preset SOC threshold value or the current finished automobile required power is larger than a preset power threshold value, and the current automobile speed is larger than a first preset automobile speed threshold value, an engine is started, a driving motor is started, and a clutch and a brake are closed so that the automobile is in a parallel driving mode; and the first preset vehicle speed threshold value is obtained according to a current accelerator pedal opening degree look-up table.
Preferably, when the current battery SOC value is larger than a first preset SOC threshold value and the current vehicle power demand is smaller than a preset power threshold value, the engine is stopped, the driving motor is started, the clutch is disengaged, and the brake is closed, so that the vehicle is in the pure electric driving mode.
Preferably, drive mechanism includes first axle and second axle, first axle one end with the engine output is connected, be provided with first fender gear, synchronous ware and second fender gear on the first axle, be provided with first gear and second gear on the second axle, first fender gear with first gear engagement, second fender gear with second gear engagement, the synchronous ware is used for control first fender gear or second fender gear with first axle synchronization combination or separation.
Preferably, different transmission ratios are respectively formed between the first gear and the first gear, and between the second gear and the second gear.
Preferably, when the vehicle is in the power split driving mode, the first gear is engaged with the first shaft, and the second gear is disengaged from the first shaft.
Preferably, when the automobile is in a parallel driving mode, if a first preset vehicle speed threshold value < the current vehicle speed is less than or equal to a second preset vehicle speed threshold value, the first gear is combined with the first shaft, and the second gear is separated from the first shaft; if the second preset vehicle speed threshold value is smaller than the current vehicle speed, the first gear is separated from the first shaft, and the second gear is combined with the first shaft; and the second preset vehicle speed threshold value is obtained according to a current accelerator pedal opening degree look-up table.
Preferably, the device also comprises a 12v motor;
when the generator is started, if the current battery discharge power is less than or equal to a preset discharge power threshold value or the current vehicle speed is less than or equal to a third preset vehicle speed threshold value, the clutch is disengaged, and the 12v motor starts the engine; and if the current battery discharge power is greater than the preset discharge power threshold and the current vehicle speed is greater than the third preset vehicle speed threshold, the clutch rubs to start the engine, and the driving motor is controlled to output additional compensation torque in the clutch rubbing process to ensure the drivability.
In a second aspect, an embodiment of the present invention provides a hybrid electric vehicle, including the hybrid coupling system.
The above embodiment has at least the following advantages:
based on the hybrid power coupling system, in the driving process of the automobile, the current battery SOC value, the current required power of the whole automobile and the current speed are obtained, and if the current battery SOC value is smaller than a first preset SOC threshold value or the current required power of the whole automobile and is larger than a preset power threshold value, and the current speed is smaller than or equal to the first preset speed threshold value, the engine is controlled to be started, the driving motor is controlled to be started, the clutch is controlled to be closed, and the brake is controlled to be disengaged, so that the automobile is in a power split driving mode; and if the current battery SOC value is less than a first preset SOC threshold value or the current finished automobile required power is greater than a preset power threshold value, and the current automobile speed is greater than a first preset automobile speed threshold value, controlling the starting of an engine, the starting of a driving motor, and the closing of a clutch and a brake so as to enable the automobile to be in a parallel driving mode. Therefore, according to the scheme of the embodiment, the power shunt driving mode is adopted to drive the automobile to run when the automobile runs at a low speed, the parallel driving mode is adopted to drive the automobile to run when the automobile runs at a high speed, and the advantages of the power shunt structure and the series-parallel structure can be taken into consideration.
Other features and advantages of the present invention will be set forth in the description that follows.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a hybrid coupling system according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a hybrid coupling system according to an embodiment of the present invention.
The reference numbers are as follows:
1-an engine;
2-transmission mechanism, 21-first shaft, 22-first gear, 23-synchronizer, 24-second gear, 25-second shaft, 26-first gear, 27-second gear;
3-a clutch;
4-planet row, 41-sun gear, 42-planet carrier, 43-ring gear;
5-a brake;
6-driving a motor;
7-a differential;
8-driving wheel.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
In addition, numerous specific details are set forth in the following detailed description of the invention in order to provide a better understanding of the invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, well known means have not been described in detail in order to avoid obscuring the present invention.
An embodiment of the present invention provides a hybrid coupling system, fig. 1 is a schematic structural diagram of the hybrid coupling system of this embodiment, referring to fig. 1, the hybrid coupling system of this embodiment includes an engine 1, a transmission mechanism 2, a clutch 3, a planetary gear train 4, a brake 5, a driving motor 6 and a differential mechanism 7, the planetary gear train 4 includes a sun gear 41, a planet carrier 42 and a gear ring 43; the driving part of the clutch 3 is connected with the output end of the engine 1 through the transmission mechanism 2, and the driven part is connected with the gear ring 43; the sun gear 41 is connected with the output end of the driving motor 6, the planet carrier 42 is connected with the differential 7, and the ring gear 43 and the planet carrier 42 are both connected with the brake 5; the differential 7 is used for being connected with a driving wheel 8 of an automobile and driving the driving wheel 8 to rotate.
Specifically, the engine 1 and the driving motor 6 provide driving force for the automobile, the transmission mechanism 2 is used for transmitting the driving force output by the engine 1 to the clutch 3, and the transmission mechanism 2 in this embodiment may be a gear assembly to achieve the purpose of transmitting the driving force.
Based on the hybrid coupling system of the embodiment, in the driving process of the automobile, the current battery SOC value, the current power demand of the entire automobile and the current speed are obtained, the current battery SOC value, the current power demand of the entire automobile and the current speed are respectively compared with corresponding threshold values one by one, and the work of each element of the hybrid coupling system of the embodiment is controlled according to the comparison result.
If the current battery SOC value is less than a first preset SOC threshold value or the current finished automobile required power is greater than a preset power threshold value, and the current automobile speed is less than or equal to a first preset automobile speed threshold value, setting the starting of the engine 1, the starting of the driving motor 6, the closing of the clutch 3 and the disengagement of the brake 5 so as to enable the automobile to be in a power split driving mode; the first preset vehicle speed threshold value is obtained by inquiring a preset table according to the current accelerator pedal opening degree, and the preset table stores calibration values of different accelerator pedal opening degrees and corresponding different first preset vehicle speed threshold values.
The working principle of the power-split driving mode is as follows: clutch 3 is closed, stopper 5 is disengaged, engine 1 drives clutch 3 rotates, clutch 3 drives ring gear 43 rotates, driving motor 6 drives sun gear 41 rotates, finally, engine 1 with driving motor 6 drives jointly planet carrier 42 rotates, planet carrier 42 drives differential mechanism 7 rotates, differential mechanism 7 drives the drive wheel 8 rotation of car.
The input torque Ts of the sun gear 41, the input torque Tr of the ring gear 43, and the input torque Tc of the carrier 42 of the planetary row 4 satisfy the following relationship:
Ts：Tr：Tc＝1：k：-(1+k)
the sun gear 41 rotation speed Ns, the ring gear 43 rotation speed Nr, and the carrier 42 rotation speed Nc of the planetary row 4 satisfy the following relationship:
Ns+k×Nr＝(1+k)×Nc
where k is the planet row 4 eigenvalue.
If the current battery SOC value is smaller than a first preset SOC threshold value or the current finished automobile required power is larger than a preset power threshold value, and the current automobile speed is larger than a first preset automobile speed threshold value, the engine 1 is started, the driving motor 6 is started, and the clutch 3 and the brake 5 are all closed so that the automobile is in a parallel driving mode.
The working principle of the parallel driving mode is as follows: the clutch 3 is closed, the brake 5 is closed, and the rotational speeds of the sun gear 41, the carrier 42, and the ring gear 43 are identical, that is, Ns ═ Nr ═ Nc. Finally, engine 1 drives clutch 3 rotates, clutch 3 drives ring gear 43 rotates, ring gear 43 directly drives planet carrier 42 and rotates, planet carrier 42 drives differential mechanism 7 rotates, differential mechanism 7 drives the 8 rotations of drive wheel of car.
It can be known from the description of the above embodiment that the hybrid coupling system of this embodiment utilizes the preset vehicle speed threshold value to define out low vehicle speed and high vehicle speed, makes full use of the advantages of the series-parallel connection structure of the planetary gear set 4 and the power coupling system, and adopts the power split driving mode to drive the vehicle to operate when the vehicle runs at low vehicle speed, and adopts the parallel driving mode to drive the vehicle to operate when the vehicle runs at high vehicle speed, so as to take into account the advantages of the power split structure and the series-parallel connection structure. In addition, in the system of the embodiment, the driving motor 6 is directly connected with the wheel end, power interruption cannot occur in gear shifting, engine 1 starting and mode switching under most conditions, the driving motor 6 end and the wheel end transmission mechanism 2 are simple, and mechanical efficiency is high when the driving motor 6 drives and recovers.
It can be understood that, in order to cope with the low-SOC and low-vehicle-speed conditions, the general hybrid configuration adopts either two driving motors 6, one driving motor 6 for generating power and the other driving motor 6 for driving, or adopts a complex transmission structure. In the embodiment, the planet carrier 42 is adopted to meet the driving requirement of low speed and low SOC, and the structure is simple, the manufacturing cost is low, and the large-scale popularization and application are easy.
Based on the above embodiments, in a specific embodiment, if the current battery SOC value > the first preset SOC threshold value and the current vehicle demand power < the preset power threshold value, the engine 1 is set to stop, the driving motor 6 is started, the clutch 3 is disengaged, and the brake 5 is closed, so that the vehicle is in the pure electric drive mode.
The working principle of the pure electric drive mode is as follows: the clutch 3 disengages the brake 5 and closes, and the rotational speeds of the sun gear 41, the carrier 42, and the ring gear 43 coincide, that is, Ns ═ Nr ═ Nc. Drive motor 6 rotates, drives sun gear 41 rotates, sun gear 41 drives planet carrier 42 rotates, planet carrier 42 drives differential mechanism 7 rotates, differential mechanism 7 drives the drive wheel 8 rotation of car, promptly by drive motor 6 direct drive car.
The states of the clutch 3 and the brake 5 between different driving modes are shown in table 1 below:
TABLE 1
In a specific embodiment, as shown in fig. 2, the transmission mechanism 2 includes a first shaft 21 and a second shaft 25, one end of the first shaft 21 is connected to the output end of the engine 1, a first gear 22, a synchronizer 23 and a second gear 24 are disposed on the first shaft 21, a first gear 26 and a second gear 27 are disposed on the second shaft 25, the first gear 22 is engaged with the first gear 26, the second gear 24 is engaged with the second gear 27, and the synchronizer 23 is configured to control the first gear or the second gear to be synchronously engaged with or disengaged from the first shaft 21.
Different transmission ratios are respectively formed between the first gear 26 and the second gear 27, so that the engine 1-wheel end has two gears, which are equivalent to three gears and four gears of a conventional vehicle.
When the automobile is in a power-split driving mode, under the action of the synchronizer 23, the first gear is combined with the first shaft 21, and the second gear is separated from the first shaft 21; at this moment, the engine 1 drives the first axle 21, first gear wheel first gear wheel 26 the second shaft 25 rotates, the second shaft 25 drives clutch 3 rotates, clutch 3 drives ring gear 43 rotates, driving motor 6 drives sun gear 41 rotates, finally, engine 1 with driving motor 6 drives jointly planet carrier 42 rotates, planet carrier 42 drives differential mechanism 7 rotates, differential mechanism 7 drives the drive wheel 8 rotation of car.
When the automobile is in a parallel driving mode, if a first preset vehicle speed threshold value < the current vehicle speed is less than or equal to a second preset vehicle speed threshold value, the first gear is combined with the first shaft 21 and the second gear is separated from the first shaft 21 under the action of the synchronizer 23; at this moment, the engine 1 drives the first axle 21, first gear wheel first gear wheel 26 the second shaft 25 rotates, the second shaft 25 drives clutch 3 rotates, clutch 3 drives ring gear 43 rotates, driving motor 6 drives sun gear 41 rotates, finally, engine 1 with driving motor 6 drives jointly planet carrier 42 rotates, planet carrier 42 drives differential mechanism 7 rotates, differential mechanism 7 drives the drive wheel 8 rotation of car.
When the automobile is in a parallel driving mode, if a second preset vehicle speed threshold value is smaller than the current vehicle speed, under the action of the synchronizer 23, the first gear is separated from the first shaft 21, and the second gear is combined with the first shaft 21; at this moment, the engine 1 drives the first shaft 21, the second gear 27, the second shaft 25 rotates, the second shaft 25 drives the clutch 3 to rotate, the clutch 3 drives the gear ring 43 to rotate, the driving motor 6 drives the sun gear 41 to rotate, finally, the engine 1 and the driving motor 6 drive the planet carrier 42 to rotate together, the planet carrier 42 drives the differential mechanism 7 to rotate, and the differential mechanism 7 drives the driving wheel 8 of the automobile to rotate.
The second preset vehicle speed threshold value is obtained by inquiring a preset table according to the current accelerator pedal opening degree, and the preset table stores calibration values of different accelerator pedal opening degrees and corresponding different second preset vehicle speed threshold values.
It should be noted that, since the current vehicle speed range to which the power split drive mode is applied is narrow, the engine 1 is always in the first gear when power is split. The shifting of the engine 1 is applicable only to the parallel drive mode. When gear shifting is needed, the clutch 3 is disengaged, the output torque of the driving motor 6 follows the requirement of the whole vehicle, the engine 1 automatically controls the rotating speed of the engine, the shifting deflector rod reverses the other end of the synchronizer 23, after the gear shifting is successfully carried out to the second gear, the engine 1 adjusts the rotating speed to enable the speed difference between the left end and the right end of the clutch 3 to be smaller than a certain preset value, and then the clutch 3 is combined.
Specifically, the engine 1-wheel end of the system in the embodiment has two gears in the parallel driving mode, which is equivalent to three gears and four gears of a traditional vehicle, the engine 1-wheel end adopts two transmission gears, the efficient fuel area of the engine 1 is fully utilized, the transmission mechanism 2 is simple, the mechanical transmission efficiency is high, the engine 1 is in the optimal fuel consumption area as far as possible, the energy conversion loss is reduced as far as possible, and the fuel economy of the vehicle is greatly improved.
Based on the above embodiments, in one specific embodiment, the system further comprises a 12v motor (starter); the starter is specifically used for converting electric energy of the storage battery into mechanical energy and driving an engine flywheel to rotate so as to start the engine.
The controlling the generator to start includes:
when the generator 1 is started, if the current battery discharge power is less than or equal to a preset discharge power threshold value or the current vehicle speed is less than or equal to a third preset vehicle speed threshold value, the clutch 3 is disengaged, and the 12v motor starts the engine; if the current battery discharge power is larger than the preset discharge power threshold value and the current vehicle speed is larger than the third preset vehicle speed threshold value, the clutch 3 rubs to start the engine 1, and the driving motor 6 is controlled to output additional compensation torque in the rubbing process of the clutch 3 to ensure the drivability. And, the engine 1 sends out the successful signal of igniting after finishing starting, the clutch 3 is disengaged, the engine 1 adjusts the rotational speed by oneself, make the rotational speed difference of both ends <50rpm about the clutch 3, the clutch 3 is combined.
Specifically, when the generator is started, the 12v motor starting mode and the clutch sliding friction starting mode are adopted, so that the emission performance and the driving performance are considered on the basis of ensuring the severe environment adaptability of the hybrid system.
In addition, another embodiment of the present invention further provides a hybrid electric vehicle, including the hybrid coupling system according to the above embodiment.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (8)
1. A hybrid power coupling system is characterized by comprising an engine, a transmission mechanism, a clutch, a planet row, a brake, a driving motor and a differential mechanism, wherein the planet row comprises a sun gear, a planet carrier and a gear ring;
the driving part of the clutch is connected with the output end of the engine through the transmission mechanism, and the driven part of the clutch is connected with the gear ring;
the sun gear is connected with the output end of the driving motor, the planet carrier is connected with the differential mechanism, and the gear ring and the planet carrier are both connected with the brake;
the differential is used for being connected with a driving wheel of an automobile and driving the driving wheel to rotate;
when the current battery SOC value is less than a first preset SOC threshold value or the current finished automobile required power is greater than a preset power threshold value, and the current automobile speed is less than or equal to a first preset automobile speed threshold value, starting an engine, starting a driving motor, closing a clutch and disengaging a brake so as to enable the automobile to be in a power split driving mode;
when the current battery SOC value is smaller than a first preset SOC threshold value or the current finished automobile required power is larger than a preset power threshold value, and the current automobile speed is larger than a first preset automobile speed threshold value, an engine is started, a driving motor is started, and a clutch and a brake are closed so that the automobile is in a parallel driving mode; and the first preset vehicle speed threshold value is obtained according to a current accelerator pedal opening degree look-up table.
2. The hybrid coupling system of claim 1, wherein when the current battery SOC value > a first preset SOC threshold and the current vehicle demand power < a preset power threshold, the engine is shut down, the drive motor is started, the clutch is disengaged, and the brake is closed such that the vehicle is in the electric-only drive mode.
3. The hybrid coupling system according to claim 1, wherein the transmission mechanism includes a first shaft and a second shaft, one end of the first shaft is connected to the output end of the engine, the first shaft is provided with a first gear, a synchronizer and a second gear, the second shaft is provided with a first gear and a second gear, the first gear is meshed with the first gear, the second gear is meshed with the second gear, and the synchronizer is configured to control the first gear or the second gear to be synchronously combined with or separated from the first shaft.
4. The hybrid coupling system of claim 3, wherein different gear ratios are established between the first gear and the first gear, and between the second gear and the second gear, respectively.
5. The hybrid coupling system of claim 4, wherein the first gear is coupled to the first shaft and the second gear is decoupled from the first shaft when the vehicle is in the power-split drive mode.
6. The hybrid coupling system according to claim 4, wherein when the vehicle is in a parallel drive mode, the first gear is engaged with the first shaft and the second gear is disengaged from the first shaft if a first preset vehicle speed threshold < a current vehicle speed ≦ a second preset vehicle speed threshold; if the second preset vehicle speed threshold value is smaller than the current vehicle speed, the first gear is separated from the first shaft, and the second gear is combined with the first shaft; and the second preset vehicle speed threshold value is obtained according to a current accelerator pedal opening degree look-up table.
7. The hybrid coupling system of claim 1, further comprising a 12v electric machine;
when the generator is started, if the current battery discharge power is less than or equal to a preset discharge power threshold value or the current vehicle speed is less than or equal to a third preset vehicle speed threshold value, the clutch is disengaged, and the 12v motor starts the engine; and if the current battery discharge power is greater than the preset discharge power threshold and the current vehicle speed is greater than the third preset vehicle speed threshold, the clutch rubs to start the engine, and the driving motor is controlled to output additional compensation torque in the clutch rubbing process to ensure the drivability.
8. A hybrid vehicle, characterized by comprising the hybrid coupling system of any one of claims 1 to 7.
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| CN202021129010.2U CN212737732U (en) | 2020-06-17 | 2020-06-17 | Hybrid power coupling system and hybrid electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113400919A (en) * | 2021-06-21 | 2021-09-17 | 上海爱跻企业管理咨询合伙企业(有限合伙) | Multi-mode power split hybrid electric vehicle driving system and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113400919A (en) * | 2021-06-21 | 2021-09-17 | 上海爱跻企业管理咨询合伙企业(有限合伙) | Multi-mode power split hybrid electric vehicle driving system and vehicle |
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