CN116181884A - Hybrid power gearbox, control method thereof and vehicle - Google Patents
Hybrid power gearbox, control method thereof and vehicle Download PDFInfo
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- CN116181884A CN116181884A CN202211723970.5A CN202211723970A CN116181884A CN 116181884 A CN116181884 A CN 116181884A CN 202211723970 A CN202211723970 A CN 202211723970A CN 116181884 A CN116181884 A CN 116181884A
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- motor
- rotation angle
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- gear set
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention provides a hybrid power gearbox, a control method thereof and a vehicle, and relates to the technical field of vehicles. The invention relates to a hybrid power gearbox, which comprises a P1 motor, a P3 motor and a dog tooth clutch, wherein one ends of the P1 motor and the dog tooth clutch are respectively connected with an engine, and the other ends of the dog tooth clutch are connected with the P3 motor; the P1 motor comprises a first rotation angle sensor, the P3 motor comprises a second rotation angle sensor, and the first rotation angle sensor and the second rotation angle sensor are used for detecting rotation angle information of the dog tooth clutch. According to the invention, the dog tooth clutch is adopted to replace the traditional clutch, so that smoother gear shifting can be completed under the condition of quick response of the motor, further, torque can be loaded faster, meanwhile, the cost of the corner sensor can be reduced by multiplexing the corner sensors of the P1 motor and the P3 motor, and the joint performance is ensured not to be obviously reduced, so that the cost of the hybrid power gearbox can be reduced.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a hybrid power gearbox, a control method thereof and a vehicle.
Background
Gearboxes are an important component of automotive powertrains and typically include a plurality of gears of varying sizes. The hybrid gearbox is a transmission system which can couple the power of an engine and the power of a driving motor together in a certain mode and can realize speed change and torque change.
In the scheme of the P1P3 hybrid gearbox, the P1 motor is connected with the engine end in a clutch opening and closing mode to realize switching between a series mode and a parallel mode, a wet clutch scheme is generally adopted to reduce the impact in the clutch engagement process, and the engine disengagement requirement of power supplement in a parking state is met under severe working conditions, but the wet clutch scheme is adopted, so that the hardware cost of the gearbox is higher.
Disclosure of Invention
The invention solves the problem of reducing the cost of a hybrid gearbox.
In order to solve the problems, the invention provides a hybrid power gearbox, a control method thereof and a vehicle.
In a first aspect, the invention provides a hybrid gearbox, which comprises a P1 motor, a P3 motor and a dog tooth clutch, wherein one end of the P1 motor and one end of the dog tooth clutch are respectively connected with an engine, and the other end of the dog tooth clutch is connected with the P3 motor; the P1 motor comprises a first rotation angle sensor, the P3 motor comprises a second rotation angle sensor, and the first rotation angle sensor and the second rotation angle sensor are used for detecting rotation angle information of the dog tooth clutch.
Optionally, the dog tooth clutch includes a combination sleeve and a gear ring, the first rotation angle sensor is used for detecting rotation angle information of the combination sleeve, and the second rotation angle sensor is used for detecting rotation angle information of the gear ring.
Optionally, the hybrid gearbox further comprises a solenoid valve, wherein the solenoid valve is connected with the dog tooth clutch, and the solenoid valve is used for controlling the dog tooth clutch to be disconnected or connected.
Optionally, the hybrid gearbox further includes a first gear set, a second gear set, a third gear set and a fourth gear set, two ends of the first gear set are respectively used for being connected with the P1 motor and the engine, the second gear set is connected with the dog tooth clutch, the third gear set and the fourth gear set, and the third gear set is connected with the P3 motor.
Optionally, the hybrid gearbox further comprises a differential for connection with the fourth gear set and wheels.
Optionally, the hybrid gearbox further comprises an input shaft and an output shaft, wherein the input shaft is used for being connected with the dog tooth clutch and the engine, and the output shaft is used for being connected with the dog tooth clutch and the differential mechanism.
Compared with the problems of power interruption and the like of the traditional clutch, the dog clutch is more firm and durable, smooth gear shifting can be achieved under the condition that a motor is rapidly responsive to speed regulation, further torque can be loaded faster, meanwhile, the cost of the corner sensor can be reduced by multiplexing the corner sensors of the P1 motor and the P3 motor, and the joint performance is guaranteed not to be obviously reduced, so that the cost of the hybrid gearbox can be reduced.
In a second aspect, the present invention provides a control method of a hybrid gearbox, applied to the hybrid gearbox, where the hybrid gearbox includes a series mode and a parallel mode, the control method of the hybrid gearbox includes:
acquiring the corner information of the dog tooth clutch;
and switching from the series mode to the parallel mode is realized through a P1 motor and an electromagnetic valve according to the corner information.
Optionally, the dog tooth clutch includes a coupling sleeve and a gear ring, and the obtaining the rotation angle information of the dog tooth clutch includes:
detecting the corner information of the combined sleeve through a first corner sensor of the P1 motor;
and detecting the rotation angle information of the gear ring through a second rotation angle sensor of the P3 motor.
Optionally, the switching from the series mode to the parallel mode through the P1 motor and the solenoid valve according to the rotation angle information includes:
when the series mode is switched to the speed regulation period, the torque output of the engine is stabilized, the torque output of the shaft end is increased or reduced by the torque regulation and control of the P1 motor, and the speed of the shaft end is increased or reduced to finish synchronous speed tracking control corresponding to the speed of the vehicle;
when the rotating speed approaches to the synchronous range, a phase modulation period of speed regulation is started, when the phase modulation period is in a phase modulation engagement period, the P1 motor is controlled according to the rotating angle information of the combination sleeve and the rotating angle information of the gear ring so as to synchronize the rotating speeds and the rotating angles of the input shaft and the output shaft, and then the dog tooth clutch is controlled to be engaged through the electromagnetic valve.
The dog tooth clutch is adopted, the defect that the traditional clutch has power interruption due to limited torque loading rate response can be avoided, and after the dog tooth clutch is adopted, the combination process from a series mode to a parallel mode comprises a speed regulation process and a phase modulation combination process, and in the phase modulation combination process, more time is needed for aligning angles, so that the dog tooth clutch can be smoothly combined, and the torque can be loaded faster.
In a third aspect, the invention provides a vehicle comprising a hybrid gearbox as described above. The advantages of the vehicle over the prior art are the same as those of the hybrid transmission described above, and are not described in detail herein.
Drawings
FIG. 1 is a schematic configuration of a hybrid transmission according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a conventional clutch scheme switching process;
fig. 3 is a schematic diagram of a switching process of a dog tooth clutch scheme according to an embodiment of the present invention.
Reference numerals illustrate:
1-P1 motor; a 2-P3 motor; a 3-dog tooth clutch; 4-an engine; 5-an electromagnetic valve; 6-a first gear set; 7-a second gear set; 8-a third gear set; 9-a fourth gear set; 10-differential mechanism; 11-an input shaft; 12-output shaft.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
As shown in fig. 1, the embodiment of the invention provides a hybrid gearbox, which comprises a P1 motor 1, a P3 motor 2 and a dog tooth clutch 3, wherein one end of the P1 motor 1 and one end of the dog tooth clutch 3 are respectively connected with an engine 4, and the other end of the dog tooth clutch 3 is connected with the P3 motor 2; the P1 motor 1 comprises a first rotation angle sensor, the P3 motor 2 comprises a second rotation angle sensor, and the first rotation angle sensor and the second rotation angle sensor are used for detecting rotation angle information of the dog tooth clutch 3.
Specifically, the hybrid gearbox comprises a P1 motor 1, a P3 motor 2 and a dog tooth clutch 3, wherein one ends of the P1 motor 1 and the dog tooth clutch 3 are respectively connected with an engine 4, the other ends of the dog tooth clutch 3 are connected with the P3 motor 2, the P1 motor 1 can serve as a generator, and the P3 motor 2 can serve as a driving motor. The P1 motor 1 comprises a first rotation angle sensor (namely a rotation change sensor of the P1 motor 1), the P3 motor 2 comprises a second rotation angle sensor (namely a rotation change sensor of the P3 motor 2), the first rotation angle sensor is used as the rotation angle sensor of the P1 motor 1, the second rotation angle sensor is used as the rotation angle sensor of the P3 motor 2, and the rotation angle sensor and the second rotation angle sensor can also detect rotation angle information of the dog tooth clutch 3, so that the rotation angle sensors (or called rotation speed sensors) of the P1 motor 1 and the P3 motor 2 are multiplexed, the cost of the rotation angle sensor is reduced, the joint performance is not obviously reduced, and on the other hand, compared with a traditional clutch, the dog tooth clutch 3 is more durable, and smoother gear shifting can be guaranteed to be completed under the condition that the motor is rapidly responsive.
Optionally, the dog clutch 3 includes a coupling sleeve and a gear ring, the first rotation angle sensor is used for detecting rotation angle information of the coupling sleeve, and the second rotation angle sensor is used for detecting rotation angle information of the gear ring.
Specifically, dog tooth clutch 3 includes a coupling sleeve and a ring gear, obtains coupling sleeve rotation angle information (for example, feeds back through a CAN signal) through a first rotation angle sensor, obtains ring gear rotation angle information through a second rotation angle sensor, and then CAN realize tooth engagement according to coupling sleeve rotation angle information and ring gear rotation angle information.
Optionally, the hybrid gearbox further comprises a solenoid valve 5, the solenoid valve 5 is connected with the dog clutch 3, and the solenoid valve 5 is used for controlling the dog clutch 3 to be disconnected or connected.
Specifically, the hybrid gearbox further comprises an electromagnetic valve 5, the electromagnetic valve 5 is used as a control executing mechanism of the dog tooth clutch 3, the disconnection and connection states of the dog tooth clutch 3 can be controlled, namely, the disconnection and connection of the connection sleeve of the dog tooth clutch 3 and the gear ring are realized, the electromagnetic valve 5 is used for controlling teeth, and compared with the existing electrohydraulic clutch executing mechanism, the cost is saved.
Optionally, the hybrid gearbox further comprises a first gear set 6, a second gear set 7, a third gear set 8 and a fourth gear set 9, wherein two ends of the first gear set 6 are respectively connected with the P1 motor 1 and the engine 4, the second gear set 7 is connected with the dog tooth clutch 3, the third gear set 8 and the fourth gear set 9, and the third gear set 8 is connected with the P3 motor 2.
Specifically, the hybrid gearbox further comprises a first gear set 6, a second gear set 7, a third gear set 8 and a fourth gear set 9, wherein the first gear set 6 is a reduction gear set between the P1 motor 1 and the engine 4, the second gear set 7 is a reduction gear set of the P1 engine unit, the third gear set 8 is a primary reduction gear set of the P3 motor 2, and the fourth gear set 9 is a main reduction gear set.
Optionally, the hybrid gearbox further comprises a differential 10, said differential 10 being adapted to be connected to said fourth gear set 9 and to the wheels.
Specifically, the hybrid gearbox further comprises a differential 10, and the differential 10 is connected with the fourth gear set 9 and wheels and is used for controlling the rotation speed difference of the wheels.
Optionally, the hybrid gearbox further comprises an input shaft 11 and an output shaft 12, wherein the input shaft 11 is used for being connected with the dog clutch 3 and the engine 4, and the output shaft 12 is used for being connected with the dog clutch 3 and the differential 10.
Specifically, the hybrid gearbox further comprises an input shaft 11 and an output shaft 12, the input shaft 11 is connected with the dog clutch 3 and the output end of the engine 4, the output shaft 12 is connected with the dog clutch 3 and the differential 10, namely, the input shaft 11 and the output shaft 12 are connected through the dog clutch 3, and the driving mode can be switched through the dog clutch 3.
In the pure two-gear project, the input shaft 11 end uses a motor corner, the output shaft 12 end uses a magnetic encoder, and the cost of the magnetic encoder can be saved.
The P3 motor 2 is also used for being connected with a power battery, and in the hybrid electric vehicle, the power battery can provide a power source for the P3 motor 2 in a pure electric mode and a parallel mode, so that the P3 motor 2 drives wheels to rotate.
Another embodiment of the present invention provides a control method of a hybrid gearbox, which is applied to the hybrid gearbox, where the hybrid gearbox includes a series mode and a parallel mode, and the control method of the hybrid gearbox includes:
acquiring the corner information of the dog tooth clutch 3;
and switching from the series mode to the parallel mode is realized through the P1 motor 1 and the electromagnetic valve 5 according to the rotation angle information.
Optionally, the dog tooth clutch 3 includes a coupling sleeve and a gear ring, and the acquiring the rotation angle information of the dog tooth clutch 3 includes:
detecting the corner information of the combined sleeve through a first corner sensor of the P1 motor 1;
the rotational angle information of the ring gear is detected by a second rotational angle sensor of the P3 motor 2.
Optionally, the switching of the series mode to the parallel mode through the P1 motor 1 and the solenoid valve 5 according to the rotation angle information includes:
when the series mode is switched to the speed regulation period, the torque output of the engine is stabilized, the torque output of the shaft end is increased or reduced by the torque regulation and control of the P1 motor 1, and the speed of the shaft end is increased or reduced to finish synchronous speed tracking control corresponding to the speed of the vehicle;
when the rotating speed approaches to the synchronous range, a phase modulation period for maintaining the speed regulation is started, when the phase modulation period is in a phase modulation engagement period, the P1 motor 1 is controlled according to the rotating angle information of the combination sleeve and the rotating angle information of the gear ring so as to synchronize the rotating speeds and the rotating angles of the input shaft 11 and the output shaft 12, and then the dog tooth clutch 3 is controlled to be engaged through the electromagnetic valve 5.
Specifically, taking a typical series-parallel switching process of a hybrid gearbox as an example as shown in fig. 2 and 3, in the conventional scheme, the P1 motor 1 is used for supporting and starting the engine 4 to a target rotating speed rear point, the motor is switched to speed regulation control during the period, the dimensionally stable engine 4 is subjected to unstable torque rotating speed change during ignition, then the dimensionally stable engine is operated to a target working section according to requirements, the P1 motor 1 synchronously loads charging torque, and the dog-tooth clutch scheme is consistent with the conventional clutch scheme.
When the switching parallel connection requirement is generated, in the first stage speed regulation period, the traditional clutch scheme can realize various speed regulation schemes through torque regulation of the engine 4 and the P1 motor 1, and in the dog tooth clutch 3, the torque regulation is mainly realized through accurate torque regulation in the rotating speed mode of the P1 motor 1, and after the rotating speed approaches to a target rotating speed, the P1 motor 1 is rapidly switched to the torque regulation aiming at double synchronization of the rotating speed and the phase. Traditional clutch schemes eliminate the engagement process shock by slip film engagement, but the torque loading rate response is limited. In the dog clutch scheme, the phasing process requires more time to adjust the angle, then the solenoid valve 5 is activated to shift quickly, smooth engagement is achieved, and then torque can be applied more quickly. Therefore, the dog tooth clutch scheme can achieve the original performance level through the optimization of the control algorithm while reducing the cost.
The drive modes include, but are not limited to:
(1) Pure electric mode: the engine does not work, and the power battery provides a power source for the P3 motor 2.
(2) Serial mode: the dog tooth clutch 3 is disconnected, the engine 4 can drive the P1 motor 1 to generate power, and according to the power required by the P3 motor 2, the dog tooth clutch can be divided into a series charging mode and a series discharging mode, in the series charging mode, the power battery charges, and in the series discharging mode, the power required by the P3 motor 2 is complemented by the power battery.
(3) Parallel mode: dog tooth clutch 3 is closed, can divide into parallel charge mode and parallel discharge mode, and in parallel charge mode, P3 motor 2 can be used for reverse charge for the power battery with unnecessary power, and in parallel discharge mode, through engine 4 and power battery provide the power supply for P3 motor 2 simultaneously.
(4) Direct drive mode: dog clutch 3 is closed and the vehicle is driven directly by engine 4.
Another embodiment of the present invention provides a vehicle comprising the above hybrid transmission.
Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the disclosure.
Claims (10)
1. The hybrid power gearbox is characterized by comprising a P1 motor (1), a P3 motor (2) and a dog tooth clutch (3), wherein one end of the P1 motor (1) and one end of the dog tooth clutch (3) are respectively connected with an engine (4), and the other end of the dog tooth clutch (3) is connected with the P3 motor (2); the P1 motor (1) comprises a first rotation angle sensor, the P3 motor (2) comprises a second rotation angle sensor, and the first rotation angle sensor and the second rotation angle sensor are used for detecting rotation angle information of the dog tooth clutch (3).
2. Hybrid gearbox according to claim 1, characterized in that the dog tooth clutch (3) comprises a coupling sleeve and a ring gear, the first rotation angle sensor being adapted to detect rotation angle information of the coupling sleeve and the second rotation angle sensor being adapted to detect rotation angle information of the ring gear.
3. Hybrid gearbox according to claim 2, further comprising a solenoid valve (5), the solenoid valve (5) being connected to the dog clutch (3), the solenoid valve (5) being used to control the dog clutch (3) to be disengaged or engaged.
4. The hybrid gearbox according to claim 3, further comprising a first gear set (6), a second gear set (7), a third gear set (8) and a fourth gear set (9), wherein two ends of the first gear set (6) are respectively used for being connected with the P1 motor (1) and the engine (4), the second gear set (7) is connected with the dog tooth clutch (3), the third gear set (8) and the fourth gear set (9), and the third gear set (8) is connected with the P3 motor (2).
5. A hybrid gearbox according to claim 4, further comprising a differential (10), said differential (10) being adapted to be connected to said fourth gear set (9) and to the wheels.
6. The hybrid gearbox according to claim 5, further comprising an input shaft (11) and an output shaft (12), the input shaft (11) being adapted to be connected to the dog clutch (3) and the engine (4), the output shaft (12) being adapted to be connected to the dog clutch (3) and the differential (10).
7. A control method of a hybrid transmission applied to the hybrid transmission according to any one of claims 1 to 6, the hybrid transmission including a series mode and a parallel mode, characterized by comprising:
acquiring the corner information of the dog tooth clutch (3);
and switching from the series mode to the parallel mode is realized through the P1 motor (1) and the electromagnetic valve (5) according to the rotation angle information.
8. The control method of a hybrid transmission according to claim 7, wherein the dog clutch (3) includes a coupling sleeve and a ring gear, and the acquiring rotational angle information of the dog clutch (3) includes:
detecting the corner information of the combined sleeve through a first corner sensor of the P1 motor (1);
and detecting the rotation angle information of the gear ring through a second rotation angle sensor of the P3 motor (2).
9. The control method of a hybrid transmission according to claim 8, wherein the switching of the series mode to the parallel mode through a P1 motor (1) and a solenoid valve (5) according to the rotation angle information includes:
when the series mode is switched to a speed regulation period, the torque output of the engine is stabilized, and the torque regulation and control are carried out through the P1 motor (1) to increase or decrease the torque output of the shaft end, so that the speed of the shaft end is increased or reduced to finish synchronous speed tracking control corresponding to the speed of the vehicle;
when the rotating speed approaches to the synchronous range, a phase modulation period for maintaining the speed regulation is started, when the phase modulation period is in a phase modulation engagement period, the P1 motor (1) is controlled according to the rotating angle information of the combining sleeve and the rotating angle information of the gear ring so as to synchronize the rotating speeds and the rotating angles of the input shaft (11) and the output shaft (12), and then the dog tooth clutch (3) is controlled to be engaged through the electromagnetic valve (5).
10. A vehicle comprising a hybrid gearbox according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211723970.5A CN116181884A (en) | 2022-12-30 | 2022-12-30 | Hybrid power gearbox, control method thereof and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211723970.5A CN116181884A (en) | 2022-12-30 | 2022-12-30 | Hybrid power gearbox, control method thereof and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116181884A true CN116181884A (en) | 2023-05-30 |
Family
ID=86431953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211723970.5A Pending CN116181884A (en) | 2022-12-30 | 2022-12-30 | Hybrid power gearbox, control method thereof and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116181884A (en) |
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2022
- 2022-12-30 CN CN202211723970.5A patent/CN116181884A/en active Pending
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