WO2022120642A1

WO2022120642A1 - Hybrid drive system and vehicle

Info

Publication number: WO2022120642A1
Application number: PCT/CN2020/134931
Authority: WO
Inventors: 于海生; 王有刚; 孙艳; 谭艳军; 林霄喆; 李贤金; 王瑞平; 安聪慧; 肖逸阁
Original assignee: 浙江吉利控股集团有限公司; 义乌吉利自动变速器有限公司; 宁波吉利罗佑发动机零部件有限公司; 浙江吉利动力总成有限公司
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2022-06-16

Abstract

A hybrid drive system and a vehicle, the hybrid drive system comprising: a power transmission mechanism; a planetary gear mechanism; a first electric motor, wherein the first electric motor comprises a first electric motor shaft of a hollow shaft structure, and the first electric motor shaft is connected to the power transmission mechanism; a second electric motor, wherein the second electric motor comprises a second electric motor shaft, and the second electric motor shaft axially passes through the first electric motor shaft to be connected to a sun gear; and an engine, wherein the engine comprises an engine shaft, and the engine shaft is connected to a planet carrier. The second electric motor and the engine are respectively connected to the sun gear and the planet carrier of the planetary gear mechanism, which realizes power distribution of the engine, enables the engine to keep in a high-efficiency operating area, and satisfies the needs of dynamic and economic performances of the vehicle. The motor shafts of the first electric motor and the second electric motor are arranged in a sleeved manner, thereby greatly saving on an arrangement space of the drive system.

Description

A hybrid drive system and vehicle

technical field

The present invention relates to the technical field of hybrid vehicles, in particular to a hybrid drive system and a vehicle.

Background technique

In recent years, with the lack of petroleum resources and the improvement of people's awareness of environmental protection, as well as the requirements of increasingly strict environmental protection regulations, there is an urgent need for green car products that can save energy and have low or even zero emissions. To this end, governments around the world and major automakers are increasing their efforts to develop various types of new energy vehicles. New energy vehicles include pure electric vehicles, hybrid vehicles, and fuel cell vehicles. However, pure electric vehicles are subject to battery technical problems, and it is difficult to break through in a short period of time. Fuel cell vehicles are subject to issues such as energy preparation and storage, and are difficult to popularize in a short period of time. Hybrid vehicles have better economy and emissions, and have a longer driving range than pure electric vehicles. In recent years, hybrid vehicles have been an area of focus for various auto companies.

A hybrid electric vehicle is a vehicle that uses multiple energy sources, usually a conventional engine that uses liquid fuel and an electric motor that uses electrical energy. How to couple the power of the engine and the motor, and how to coordinate the coupling output of the power source, the power and economy are both good, which is a difficult point. The hybrid structure at this stage mostly adopts the P2 hybrid mode, that is, the electric motor is placed on the input shaft of the transmission. The hybrid transmission system is mainly based on the current mature dual-clutch transmission technology and motor control technology. By changing gears, the driving motor and the engine can work in the high-efficiency area for a long time, which improves the work efficiency and increases the power of the vehicle. However, at present, the motor drive of most dual-clutch hybrid transmissions cannot cooperate with all gears, and it is necessary to switch gears to achieve power transmission, resulting in the motor not being able to drive all gears, thus failing to meet the power and economy requirements. Moreover, In this driving mode, the motor is externally located, and the overall layout space is large.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is that the existing hybrid drive system has a large space and cannot meet the requirements of power and economy.

In order to solve the above technical problems, in the first aspect, the embodiments of the present application disclose a hybrid drive system, including:

A power transmission mechanism for transmitting the driving force of the drive system to the wheels;

A planetary gear mechanism, the planetary gear mechanism includes a sun gear, a planet carrier and a ring gear, the planet carrier is provided with at least two planet gears, at least two of the planet gears are respectively meshed with the sun gear, the teeth The inner ring of the ring meshes with the planetary gear, and the outer ring of the ring gear is connected with the power transmission mechanism;

a first motor, the first motor has a first motor shaft, the first motor shaft is a hollow shaft structure, and the first motor shaft is connected with the power transmission mechanism;

a second motor, the second motor has a second motor shaft, the second motor shaft axially passes through the first motor shaft and is connected to the sun gear;

The engine has an engine shaft, and the engine shaft is connected to the planet carrier.

Further, there is a preset transmission ratio between the sun gear and the planetary gear, and the preset transmission ratio is set according to the working efficiency of the second motor.

Further, the power transmission mechanism includes an output shaft assembly and a differential, the output shaft assembly is provided with a first gear, and the first gear is connected with the differential gear.

Further, the output shaft assembly further includes a second gear, and the second gear meshes with a gear provided on the first motor shaft.

Further, the output shaft assembly further includes a third gear, the outer ring of the ring gear is provided with external teeth, and the third gear is connected with the external teeth of the ring gear.

Further, the drive system further includes a torsional damper, and the torque damper is arranged on the engine shaft.

Further, the torsional damper is a dual mass flywheel.

Further, the drive system further includes a clutch for disengaging or engaging the output assembly and the differential.

Further, the central gear and the ring gear are arranged coaxially.

In a second aspect, an embodiment of the present application discloses a vehicle including the hybrid drive system as described above.

With the above technical solutions, the hybrid drive system and the vehicle described in the embodiments of the present application have the following beneficial effects:

In the hybrid drive system described in the embodiments of the present application, the second motor and the engine are respectively connected with the sun gear and the planet carrier of the planetary gear mechanism, so as to realize the power splitting of the engine. On the premise of meeting the requirements of the whole vehicle, the system can The engine can always be in a high-efficiency working area to meet the power and economy requirements of the vehicle. The motor shafts of the first motor and the second motor are arranged in the form of bushing shafts, which greatly saves the layout space of the drive system. At the same time, the engine, the first motor and the second motor are on the same axis, which can effectively reduce the power transmission path. drag loss.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of a hybrid transmission system provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a hybrid drive system provided by an embodiment of the present application;

3 is a schematic structural diagram of a planetary gear mechanism provided by an embodiment of the present application;

The following supplementary descriptions are provided for the accompanying drawings:

100-ICE engine; 101-C2 clutch; 102-C1 clutch; 103-output 2 shafts; 104-main reduction gear 1; 105-second-speed driven gear; 106-motor drive shaft assembly; 107-EM motor; 6-speed driven gear; 109-5-speed driven gear; 200-7-speed driven gear; 201-7-speed driving gear; 202-1-speed driving gear; 203-output 1 shaft; 204-3-speed driving gear; 205 -1st driven gear; 206-3rd driven gear; 207-4th driven gear; 208-reverse gear; 209-differential; 300-main reduction gear 2; 301-2nd drive gear; 302 -Input 2 shaft; 303-Input 1 shaft; 304- Fourth and sixth gear driving gear; 305- Fifth gear driving gear; 401- First motor shaft, 402- Second motor shaft; 403- Torsion damper; 404- Output Shaft assembly; 405-differential; 410-first motor; 420-second motor; 430-planetary gear mechanism; 431-sun gear; 432-planet carrier; 433-ring gear; 434-planet gear; 440- engine.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure, or characteristic that may be included in at least one implementation of the present application. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the purpose of It is convenient to describe the application and to simplify the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the application. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. Also, the terms "first," "second," etc. are used to distinguish between similar objects, and are not necessarily used to describe a particular order or precedence. It is to be understood that data so used may be interchanged under appropriate circumstances so that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein.

Hybrid vehicles can operate in a variety of drive modes, but have limited battery capacity and rely primarily on engine combustion for power. The hybrid structure at this stage mostly adopts the P2 hybrid mode, that is, the electric motor is placed on the input shaft of the transmission. FIG. 1 is a schematic structural diagram of a hybrid transmission system provided by an embodiment of the application. As shown in FIG. 1 , the hybrid solution adopts a 7-speed dual-clutch hybrid, the C1 clutch 102 and the C2 clutch 101 are respectively connected to the engine, and the input 2 The shaft 302 is idle on the input shaft 301, and the motor 107 is connected to the fourth and sixth gear drive gears 304 through the motor drive shaft assembly 106. The hybrid system can perform operating modes such as the engine alone driving, the electric motor alone driving 2/4/6/R gears, the engine and the electric motor simultaneously driving the 2/4/6/R gears, and the electric motor braking charging. The hybrid transmission system is mainly based on the current mature dual-clutch transmission technology and motor control technology. By changing gears, the drive motor and the engine can work in the high-efficiency area for a long time, which improves the work efficiency, increases the power of the vehicle, and improves the performance of the vehicle. The fuel economy maintains the driving pleasure of traditional vehicles, but the hybrid system has the following problems: many gears, complex control; many mechanical structures, high manufacturing cost; single motor, can not take into account the simultaneous power generation and driving, the achievable hybrid There are few driving modes; the engine and the generator are connected by gears, and the matching degree of the high-efficiency area is low; the motor drive cannot be matched with the full gears, and the power transmission needs to be realized by switching the gears; the motor is external, and the overall layout takes up a lot of space.

In view of this, an embodiment of the present application provides a hybrid drive system. FIG. 2 is a schematic structural diagram of a hybrid drive system provided by an embodiment of the present application. Please refer to FIG. 2. The hybrid drive system includes:

The power transmission mechanism is used to transmit the driving force of the driving system to the wheels; the planetary gear mechanism 430, the planetary gear mechanism 430 includes a sun gear 431, a planetary carrier 432 and a ring gear 433, and at least two planetary gears 434 are arranged on the planetary carrier 432 , at least two planetary gears 434 are respectively meshed with the central gear 431, the inner ring of the ring gear 433 is meshed with the planetary gears 434, and the outer ring of the ring gear 433 is connected with the power transmission mechanism; the first motor 410, the first motor 410 has a first The motor shaft 401, the first motor shaft 401 is a hollow shaft structure, the first motor shaft 401 is connected with the power transmission mechanism; the second motor 420, the second motor 420 has a second motor shaft 402, the second motor shaft 402 axially passes through The first motor shaft 401 is connected with the sun gear 431 ; the engine 440 has a shaft of the engine 440 , and the shaft of the engine 440 is connected with the planet carrier 432 .

In the hybrid drive system described in the embodiment of the present application, the second motor 420 and the engine 440 are respectively connected with the sun gear 431 and the planet carrier 432 of the planetary gear mechanism 430, so as to realize the power splitting of the engine 440, and the system can meet the requirements of the whole vehicle. On the premise that the engine 440 can always be in a high-efficiency working area, the power and economy requirements of the vehicle can be met. The motor shafts of the first motor 410 and the second motor 420 are arranged in the form of bushing shafts, which greatly saves the layout space of the drive system. Reduce drag losses on the power transmission path.

In the embodiment of the present application, the power transmission mechanism is a gear train mechanism, which can transmit the driving force generated by the power device to the wheels, so as to realize the driving of the vehicle. The power plant of the hybrid drive system includes a first electric machine 410 driven by electric energy, an engine 440 using fuel, and a second electric machine 420 splitting the power of the engine 440 . The first motor 410 is a driving motor, and the first motor 410 uses a vehicle-mounted battery pack as a power source. The first motor 410 is directly connected to the power transmission mechanism, and does not need to switch gears to achieve power transmission, and the control is simple. The second motor 420 is a generator, and the second motor 420 can divide the power of the engine 440 to generate electricity. The electric energy generated by the second motor 420 can directly drive the first motor 410, or the electric energy generated by the power generation can be used for the on-board battery pack. to charge. The first motor shaft 401 of the first motor 410 is a hollow shaft, and the inside of the shaft is a hollow structure. The second motor shaft 402 of the second motor 420 passes through the hollow structure of the first motor shaft 401 to realize the connection with the planetary gear mechanism 430 . The sun gear 431 is connected. As shown in FIG. 3, the planetary gear mechanism 430 has a sun gear 431, a planet carrier 432 and a ring gear 433. The planet carrier 432 is provided with at least two planet gears 434. The planet gears 434 mesh with the ring gear 433 and the sun gear 431 respectively. The gear 434 is fixed by the planet carrier 432, the central gear 431 is meshed and fixed by the planetary gear 434, the inner ring of the ring gear 433 is provided with internal teeth meshing with the planetary gear, and the internal teeth mesh with the planetary gear 434 to form an integrated structure. The center gear 431 and the ring gear 433 may be concentric structures, that is, the center of the ring gear 433 coincides with the center of the center gear 431 , and the center gear 431 and the ring gear 433 are coaxially arranged. In some embodiments, the sun gear 431 and the ring gear 433 may also not be coaxial. The outer ring of the ring gear 433 is connected to the power transmission mechanism. The output shaft of the engine 440 is connected to the planet carrier 432. The engine 440 can be an engine 440 using conventional gasoline fuel, or an engine 440 using other fuels, such as methanol fuel, or an engine 440 using multi-fuel, alcohol and gasoline dual fuel The engine 440 can also be an engine 440 using a multi-fuel mixture. The types of the engine 440 may be various, as long as the power demand of the vehicle can be met, and the embodiment of the present application does not limit the type of the engine 440 . The engine 440 drives the planetary carrier 432 to rotate through the output torque of the output shaft of the engine 440 , and the planetary carrier 432 drives the planetary gear 434 arranged on the planetary carrier 432 to rotate, thereby driving the rotation of the sun gear 431 and the ring gear 433 . The rotation of the sun gear 431 drives the input shaft of the second motor 420 to rotate, so that the second motor 420 uses part of the power of the engine 440 to generate electricity. The rotation of the ring gear 433 transmits the output torque of the engine 440 to the power transmission mechanism.

When the engine 440 drives the vehicle, it is not always in an efficient working range. For example, under low load conditions, the torque required by the vehicle is relatively small, and the engine 440 often meets the load demand of the vehicle through insufficient combustion of fuel. At this time, the efficiency of the engine 440 is very high. low, resulting in a waste of fuel. For another example, during driving, the vehicle accelerates or decelerates abruptly, and the accelerator opening changes frequently, such as depressing the accelerator forcefully and then releasing the accelerator, or depressing the brake forcefully and then depressing the accelerator quickly. In the above scenario, the large fluctuation of the load vehicle load will also result in low efficiency of the engine 440 . In the embodiment of the present application, the power of the engine 440 is divided by the second motor 420, and the power generation efficiency is regulated by calibrating the working efficiency of the engine 440, so that the engine 440 is always in a high-efficiency working range, which satisfies the power and economy of the vehicle. requirements.

There is a preset transmission ratio between the sun gear 431 and the planetary gears 434 , and the preset transmission ratio is set according to the working efficiency of the second motor 420 .

In the embodiment of the present application, by calibrating the power generation efficiency of the second motor 420, a working range with higher power generation efficiency of the second motor 420 is obtained, and then the transmission ratio between the sun gear 431 and the planetary gear 434 is designed accordingly, and the engine is adjusted The speed ratio between the shaft 440 of the engine 440 and the shaft 402 of the second motor 420 of the second motor 420 makes the second motor 420 also in an efficient working range to achieve high efficiency and energy saving.

The power transmission mechanism includes an output shaft assembly 404 and a differential 405 . The output shaft assembly 404 is provided with a first gear, and the first gear is geared to the differential 405 .

In the embodiment of the present application, the output shaft assembly 404 is connected to the output end of the power plant, and then transmits the driving force to the differential 405, and the differential 405 transmits the driving force to the wheels.

The output shaft assembly 404 further includes a second gear that meshes with the gear provided on the first motor shaft 401 .

In the embodiment of the present application, the first motor shaft 401 of the first motor 410 is provided with a motor shaft gear, the output shaft of the output shaft assembly 404 is provided with a second gear, the second gear meshes with the motor shaft gear, and the second gear There is a preset transmission ratio between the second gear and the motor shaft gear, and the second gear and the motor shaft gear constitute a special reducer, so as to realize the driving of the vehicle by the first motor 410 .

The output shaft assembly 404 further includes a third gear, the outer ring of the ring gear 433 is provided with external teeth, and the third gear is connected with the external teeth of the ring gear 433 .

In the embodiment of the present application, the outer ring of the ring gear 433 of the planetary gear mechanism 430 is provided with external teeth, the output shaft of the output shaft assembly 404 is provided with a third gear, and the third gear and the outer ring of the ring gear 433 are provided with external teeth. The outer teeth mesh, the engine 440 drives the planetary carrier 432 to rotate through the output torque of the output shaft of the engine 440, and the planetary carrier 432 drives the planetary gear 434 arranged on the planetary carrier 432 to rotate, thereby driving the rotation of the ring gear 433, and the rotation of the ring gear 433 rotates the engine 440 The output torque is transmitted to the output shaft, thereby realizing the driving of the vehicle by the engine 440 .

The drive system also includes a torsional damper 403 , which is provided on the engine 440 shaft.

In the embodiment of the present application, in order to reduce the torsional vibration of the drive train caused by the unbalanced rotation of the engine 440, a torsional vibration damper is provided on the shaft of the engine 440 of the engine 440 to achieve the purpose of vibration reduction.

The torsional damper 403 is a dual mass flywheel.

In the embodiment of the present application, the torsional shock absorber 403 can effectively isolate the torsional vibration of the crankshaft of the engine 440, which is beneficial to improve the use performance of the automobile. In some embodiments, the torsional damper 403 may also be other structures, such as a single-mass flywheel.

The drive system also includes a clutch for disengaging or engaging the output assembly and the differential 405 .

In the embodiment of the present application, the drive system can be matched with various clutches, for example, the clutch may be a synchronous clutch, an asynchronous clutch, a one-way clutch, a friction clutch, and the like.

In the embodiment of the present application, the engine 440, the second motor 420 and the first motor 410 are used as the power source of the transmission system, the engine 440 is connected to the planet carrier 432, the sun gear 431 is connected to the second motor shaft 402 of the second motor 420 and the second motor The rotor hub of 420 is directly connected, and through the relationship between the planetary gear 434 of the planetary gear mechanism 430 and the sun gear 431, the rotation speed of the engine 440 and the second motor 420 have a predetermined speed ratio relationship, which more effectively realizes the engine 440 and the second motor. The high-efficiency zone matching between 420 makes the power generation more efficient and the whole system more efficient. At the same time, the planetary gear 434 is directly connected to the inner ring of the ring gear 433 , and the outer ring of the ring gear 433 is directly connected to the third gear on the output shaft of the output shaft assembly 404 . Therefore, the engine 440 passes through the planetary gear on the planetary gear mechanism 430 . 434 and the ring gear 433 realize the connection with the output shaft of the engine 440 . The engine 440 participates in driving in the whole process, and through the planetary gear mechanism 430 , part of the power is used to generate power, and part of the power is used to drive the vehicle, and power splitting is realized by controlling the power generation of the second motor 420 . The first motor 410 is connected to the output shaft of the output shaft assembly 404 through the second motor shaft 402. The first motor 410 can compensate the engine 440 caused by only one direct-connected speed ratio by controlling the first motor 410 according to the needs of the entire wheel end. Part of the problem of insufficient power and economy. The above-mentioned drive system takes the planetary gear mechanism 430 as the pivot, the second motor 420 converts the excess energy of the engine 440 into electrical energy for the first motor 410, and the first motor 410 can effectively help the engine 440 to provide the necessary power and power. Economic requirements, so that the entire system can achieve high efficiency and energy saving. The shaft of the second motor 420 is sleeved in the shaft of the first motor 410 , so that the engine 440 , the second motor 420 and the first motor 410 are on the same axis, which effectively reduces the drag loss on the power transmission path.

The embodiments of the present application further disclose a vehicle, which includes the hybrid drive system as described above.

In the embodiment of the present application, the vehicle can implement a variety of working modes by using the above-mentioned hybrid drive system. Table 1 is a working mode table of a drive system provided by the embodiment of the present application. As shown in Table 1, when the engine 440 is directly driven, The engine 440 and the planetary gear mechanism 430 work, the first motor 410 and the second motor 420 do not work; when the engine 440 and the first motor 410 are driven in parallel, the engine 440, the first motor 410 and the planetary gear mechanism 430 work, and the second motor 420 According to the working efficiency of the engine 440, the engine 440 can be selected to work or not; in the braking energy recovery mode, the engine 440 and the planetary gear mechanism 430 work, the first motor 410 can be selected to work or not according to the actual load, and the second motor 420 The engine 440 works Efficiency chooses to work or not to work.

Table 1: Operating mode table of the drive system

The following beneficial effects can be achieved by using the hybrid drive system and the vehicle described in the embodiments of the present application:

1. The drive system has only one gear, simple control, few structural components, and low manufacturing cost; and because the motor has only one gear, there is no impact in pure electric mode.

2. There are many hybrid functions that can be realized, such as hybrid driving charging, parallel mode, engine 440 direct drive mode, energy recovery and other functions.

3. The use of the planetary gear mechanism 430 enables a preset speed ratio between the second motor 420 and the engine 440, and the matching is more efficient; the planetary gear mechanism 430 is used as the medium, and the second motor 420 and the first motor 410 are used as the auxiliary, so that the The engine 440 can avoid the low-efficiency working area, so that the engine 440 can always be in the high-efficiency working area, achieve high efficiency and energy saving, and can meet the power and economic requirements of the vehicle. In addition, since the complex systems such as brakes that need the support of the hydraulic system are eliminated, the planetary gear mechanism 430 is replaced, and the overall cost is low.

4. The first motor 410 and the second motor 420 are arranged in the form of bushing shafts, so that the engine 440, the first motor 410 and the second motor 420 are on the same axis, which effectively reduces the drag loss on the power transmission path; The motor is built-in, highly integrated, and the overall arrangement is compact.

5. The second gear and the motor shaft gear form a special 1-speed reducer, which makes the selection of the motor various and can meet the needs of more models. Since the engine 440 realizes power splitting, the drive system can appropriately reduce the power torque of the first electric motor 410 and the second electric motor 420 according to the capability of the engine 440 and the demand of the whole vehicle, so as to achieve high efficiency.

6. By adjusting the power of the first motor 410 and the second motor 420, it can be flexibly adapted to vehicle batteries of different capacities, which are compatible with both PHEV and HEV. For vehicles that are cost-sensitive, the system cost can be optimized by reducing battery capacity, motor power, and motor controller current.

The above are only preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims

A hybrid drive system is characterized in that, comprising:

A power transmission mechanism for transmitting the driving force of the drive system to the wheels;

A planetary gear mechanism (430), the planetary gear mechanism (430) comprising a sun gear (431), a planet carrier (432) and a ring gear (433), the planet carrier (432) is provided with at least two planetary gears (432) 434), at least two of the planetary gears (434) are respectively meshed with the sun gear (431), the inner ring of the ring gear (433) is meshed with the planetary gears (434), the ring gear (433) ) is connected with the power transmission mechanism;

A first motor (410), the first motor (410) has a first motor shaft (401), the first motor shaft (401) is a hollow shaft structure, the first motor shaft (401) and the Power transmission mechanism connection;

A second motor (420), the second motor (420) has a second motor shaft (402), the second motor shaft (402) axially passes through the first motor shaft (401) and the center gear (431) connection;

An engine (440) having an engine (440) shaft connected to the planet carrier (432).
The hybrid drive system according to claim 1, characterized in that there is a preset transmission ratio between the sun gear (431) and the planetary gears (434), and the preset transmission ratio is based on the second The working efficiency setting of the motor (420).
The hybrid drive system according to claim 1, wherein the power transmission mechanism comprises an output shaft assembly (404) and a differential (405), and the output shaft assembly (404) is provided with a first A gear, the first gear is gear-connected with the differential (405).
The hybrid drive system according to claim 3, characterized in that, the output shaft assembly (404) further comprises a second gear, the second gear is connected to a gear provided on the first motor shaft (401) Gears mesh.
The hybrid drive system according to claim 4, wherein the output shaft assembly (404) further comprises a third gear, an outer ring of the ring gear (433) is provided with external teeth, and the The third gear is connected with the external teeth of the ring gear (433).
The hybrid drive system according to claim 1, characterized in that the drive system further comprises a torsional damper (403), the torque damper being arranged on the engine (440) shaft.
The hybrid drive system according to claim 6, wherein the torsional damper (403) is a dual mass flywheel.
The hybrid drive system of claim 5, further comprising a clutch for disengaging or engaging the output assembly and the differential (405).
The hybrid drive system according to claim 1, wherein the sun gear (431) and the ring gear (433) are coaxially arranged.
A vehicle, characterized in that the vehicle comprises the hybrid drive system of any one of claims 1-9.