Power driving device and automobile

Abstract

According to the power driving device and the automobile, two-gear direct drive can be achieved, and the structure is simplified. The power driving device comprises an engine and a planet row mechanism, the planet row mechanism comprises a first planet row, the engine is in transmission connection with a first sun gear of the first planet row, and a planet carrier of the first planet row is the power output end of the planet row mechanism; the planet row mechanism further comprises a first brake and a first clutch. When the first brake is combined, the first clutch is disconnected, and the first brake brakes a first gear ring of the first planet row; when the first clutch is combined, the first brake is disconnected, and the first gear ring and a planet carrier of the first planet row are fixed.

Description

TECHNICAL FIELD

[0001] The application relates to the automobile technical field, in particular to a power driving device and an automobile. BACKGROUND

[0002] The existing longitudinal hybrid devices are complex in structure, whether they are multi-gear hybrid devices formed by power coupling and 4AT fusion represented by Toyota or other hybrid devices using longitudinal parallel shafts or Ravigneaux planetary gears or using planetary gears and parallel shafts. CONTENT OF THE UTILITY MODEL

[0003] The application aims to provide a power driving device and an automobile, which can realize two-gear direct driving and are simple in structure.

[0004] To solve the above technical problems, the application provides a power driving device, which comprises an engine and a planetary gear mechanism, the planetary gear mechanism comprises a first planetary gear, the engine and a first sun gear of the first planetary gear are in transmission connection, and a carrier of the first planetary gear is a power output end of the planetary gear mechanism.

[0005] The planetary gear mechanism further comprises a first brake and a first clutch.

[0006] When the first brake is combined, the first clutch is disconnected, and the first brake brakes a first ring gear of the first planetary gear; when the first clutch is combined, the first brake is disconnected, and the first ring gear and the carrier of the first planetary gear are fixed.

[0007] Optionally, the power driving device further comprises a first motor, the planetary gear mechanism comprises a second planetary gear, the first motor and a second sun gear of the second planetary gear are in transmission connection, and a carrier of the second planetary gear and the carrier of the first planetary gear are fixedly connected or integrally arranged.

[0008] Optionally, the power driving device comprises a second brake, the second brake is disconnected, the second brake and a second ring gear of the second planetary gear are disconnected, the second brake is combined, and the second brake brakes the second ring gear of the second planetary gear.

[0009] Optionally, the power driving device comprises a second motor, the engine is in transmission connection with the first sun gear through the second motor;

[0010] Further comprising a second clutch, the second clutch is combined, the second motor and the first sun gear are in transmission connection, the second clutch is disconnected, and the second motor and the first sun gear are disconnected.

[0011] Optionally, the first motor, the second motor, the engine, the planetary gear mechanism are coaxially arranged.

[0012] Optionally, the engine, the second motor, the first motor, the second planetary gear, the first planetary gear are sequentially arranged.

[0013] The power driving device comprises an intermediate shaft, the second motor is drivingly connected with the intermediate shaft through the second clutch, and the intermediate shaft passes through the first motor and a second sun gear of the second planetary gear to be drivingly connected with the first sun gear.

[0014] Optionally, the power driving device further comprises a first transmission disc and an output shaft, the output shaft is drivingly connected with a carrier of the first planetary gear, the first transmission disc and the output shaft are fixed, and the first clutch connects the first transmission disc and the first ring gear when combined to fix the first ring gear and the carrier of the first planetary gear.

[0015] Optionally, a shock absorber is arranged between the second motor and the engine.

[0016] Optionally, the power driving device has the following working modes:

[0017] The engine is started, and the second motor works.

[0018] The first motor works in pure electric driving mode.

[0019] The engine works in engine driving mode, the second clutch is combined, and the second motor generates electricity; in low-speed gear, the first brake is combined and the first clutch is disconnected, and in high-speed gear, the first clutch is combined and the first brake is disconnected.

[0020] The engine and the first motor work in hybrid mode, the second clutch is combined, and the second motor generates electricity or drives; in low-speed gear, the first brake is combined and the first clutch is disconnected, and in high-speed gear, the first clutch is combined and the first brake is disconnected.

[0021] The first motor generates electricity in kinetic energy recovery mode.

[0022] The engine, the first motor and the second motor are all not working in coasting mode.

[0023] The engine drives the second motor to generate electricity in idling power generation mode.

[0024] The application further provides an automobile comprising the power driving device.

[0025] The planetary gear mechanism of the power driving device in the application comprises a first brake and a first clutch. When the first brake is engaged and the first clutch is disengaged, the low speed gear is in a state. When the first clutch of the planetary gear mechanism is engaged and the first brake is disengaged, the high speed gear is in a state. Thus, the engine can be directly driven at high and low speeds, i.e. two gears are directly driven, and too many gears are not needed, so that the structure is simplified.

[0026] The automobile provided by the application has the same technical effects as the power driving device. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The figure is a structural schematic diagram of the power driving device in an embodiment of the application;

[0028] Figure 2 The figure is a structural schematic diagram of the power driving device in another embodiment of the application.

[0029] The reference signs are explained as follows:

[0030] 10-engine;

[0031] 20-second motor; 201-second motor stator; 202-second motor rotor; 203-second clutch;

[0032] 30-first motor; 301-first motor stator; 302-first motor rotor;

[0033] 40-planetary gear mechanism; 4011-first brake; 4012-second brake; 402-first clutch; 403-second planetary gear; 4031-second sun gear; 4032-second planetary gear; 4033-second ring gear; 404-first planetary gear; 4041-first sun gear; 4042-first planetary gear; 4043-first ring gear; 405-shared carrier;

[0034] 50-shock absorber;

[0035] 60-engine crankshaft;

[0036] 70-input shaft;

[0037] 80-intermediate shaft;

[0038] 90-output shaft;

[0039] 100-first gear;

[0040] 110-second gear;

[0041] 120-transmission shaft;

[0042] 130-first bevel gear;

[0043] 140 - second bevel gear

[0044] 150 - differential

[0045] 160 - first transmission disc

[0046] 170 - second transmission disc DETAILED DESCRIPTION

[0047] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0048] In the embodiments of the present application, the terms "first" and "second" are mainly used to distinguish the same or similar features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0049] Please refer to Figure 1 , Figure 1 is a structural schematic view of a power driving device in an embodiment of the present application.

[0050] The power driving device in the embodiment further includes an engine 10, a second motor 20, a first motor 30 and a planetary gear mechanism 40 arranged coaxially in sequence in addition to the battery. The second motor 20 and the first motor 30 can not only be driven to rotate by the battery, but also can be driven to rotate by the engine 10, and at the same time, the second motor 20 and the first motor 30 can also not work when needed. The second motor 20 can be in a power generation state as a generator or in a driving state as a motor; the first motor 30, like the second motor 20, can be in a power generation state as a generator or in a driving state as a motor. The second motor 20 is directly connected with the engine 10, that is, the power of the engine 10 can be transmitted to the second motor 20, and the second motor 20 can also be used to start the engine 10 when driving. The second motor 20 and the first motor 30 are in transmission connection, that is, the power can be transmitted from the second motor 20 to the first motor 30, and the planetary gear mechanism 40 and the first motor 30 are in transmission connection, that is, the power can be transmitted from the first motor 30 to the planetary gear mechanism 40.

[0051] The second motor 20 is provided with a second clutch 203, which can be in a combined state or a disconnected state. When the second clutch 203 is in the combined state, at this time, the power can be transmitted from the engine 10 to the second motor 20, and then to the planetary gear mechanism 40, at this time, the engine 10 participates in driving; when the second clutch 203 is in the disconnected state, at this time, the power of the engine 10 cannot be transmitted backward, that is, at this time, the engine 10 does not participate in driving, that is, in a pure electric driving mode.

[0052] AsFigure 1 As shown, the planetary gear mechanism 40 in this embodiment has a function of speed reduction. The planetary gear mechanism 40 in this embodiment adopts a double planetary gear, including a second planetary gear 403 and a first planetary gear 404. The second planetary gear 403 includes a second sun gear 4031, a second planetary gear 4032 and a second ring gear 4033, the first planetary gear 404 includes a first sun gear 4041, a first planetary gear 4042 and a first ring gear 4043, and both the planetary gears include a carrier for mounting the corresponding planetary gears. The structural principle of the planetary gear is a prior art and will not be discussed here.

[0053] In this embodiment, the carrier of the first planetary gear 404 is the power output end of the planetary gear mechanism 40, and the power of the engine 10 and the first motor 30 can be finally output through the carrier of the first planetary gear 404. The second planetary gear 403 is in transmission connection with the first motor 30, and the second planetary gear 403 is a speed reduction mechanism of the first motor 30, that is, the first motor 30 realizes speed reduction and electric drive mode through the second planetary gear 403, Figure 1 In this embodiment, the first motor 30 is in transmission connection with the second sun gear 4031 of the second planetary gear 403, and the carrier of the second planetary gear 403 needs to output power through the carrier of the first planetary gear 404. Therefore, as shown, Figure 1 The planetary gear mechanism 40 is provided with a shared carrier 405, and the planetary gears of the second planetary gear 403 and the first planetary gear 404 are connected to the shared carrier 405 at the same time.

[0054] Generally, the planetary gear has an independent carrier, and in this embodiment, the second planetary gear 403 and the first planetary gear 404 share a carrier, so that the second planetary gear 403 can output power through the first planetary gear 403. It can be seen that the carriers of the two planetary gears are arranged in an integrated structure, that is, a shared carrier 405 is formed, or the carriers of the two planetary gears can be fixedly connected.

[0055] The planetary gear mechanism 40 includes a first clutch 402 and a first brake 4011, and the planetary gear mechanism 40 can realize multi-gear driving through the first brake 4011 and the first clutch 402. The first brake 4011 and the first clutch 402 can only be combined with each other, and the other one is disconnected at this time, so as to realize the change of gear position while transmitting power to the wheel end. Figure 1 In this embodiment, the first clutch 402 is sleeved on the inner ring of the first brake 4011, which can improve the space utilization, so as to realize the gear shifting function of the planetary gear mechanism 40.

[0056] In detail, when the first clutch 402 is engaged and the first brake 4011 is disengaged, the first brake 4011 brakes the first ring gear 4043 of the first planetary gear set 404, and the first ring gear 4043 is fixed relative to the housing of the transmission, at this time, if the power of the engine 10 is input to the first sun gear 4041, the power will be output through the common carrier 405, and the speed reduction can be performed; when the first clutch 402 is engaged and the first brake 4011 is disengaged, the first clutch 402 fixes the first ring gear 4043 and the carrier of the first planetary gear set 404, and the first planet gear 4042 will not rotate along the first ring gear 4043, at this time, the speed ratio of the first planetary gear set 404 is 1, and the speed reduction does not work.

[0057] It can be seen that, in the embodiment of the application, when the first brake 4011 of the planetary gear set mechanism 40 is engaged and the first clutch 402 is disengaged, it is in the low-speed gear; when the first clutch 402 of the planetary gear set mechanism 40 is engaged and the first brake 4011 is disengaged, it can be in the high-speed gear, so that the direct drive of the engine 10 can be realized at high and low speeds, that is, two-gear direct drive is realized.

[0058] The above is only a brief description of the structure and principle of the power driving device, and the specific content will be described in more detail below.

[0059] The second motor 20 in the embodiment includes a second motor stator 201 and a second motor rotor 202, and the second motor rotor 202 is arranged inside the second motor stator 201. The first motor 30 includes a first motor stator 301 and a first motor rotor 302, and the first motor rotor 302 is arranged inside the first motor stator 301. By using double motors, the hybrid demand can be better realized to realize multi-mode operation and improve the efficiency of the automobile driving. In the embodiment, the second motor 20 can be combined with the engine 10 as a range extender to provide the power of the engine 10 for the device; and the first motor 30 is combined with the planetary gear set mechanism 40 as the main power output to provide the purpose of providing electric energy driving for the device, and the high and low speed gear shifting in the same mode can be completed. The second clutch 203 can be arranged inside the second motor rotor 201, which not only saves space but also simplifies the structure, and also protects the second clutch 203 to better realize its function.

[0060] The planetary gear mechanism 40 also includes a second brake 4012. The input end of the second planetary gear 403 is directly connected to the first motor 30, and the second planetary gear 403 is also connected to the second brake 4012. The second planetary gear 403 transmits or disconnects power at its output end through the second brake 4012. Specifically, when the second planetary gear 403 is engaged with the second brake 4012, the first motor 30 can output power through the second planetary gear 403, meaning the first motor 30 participates in driving, and the power source includes electric drive. When the second planetary gear 403 is disengaged from the second brake 4012, the first motor 30 cannot output power through the second planetary gear 403, and the first motor 30 will not participate in driving; the power source is solely the engine 10. Thus, by disengaging and engaging the second clutch 203 with the second motor 20, the selection of the operating mode—namely, engine drive mode, pure electric drive mode, or hybrid electric drive mode—can be achieved relatively easily.

[0061] Depend on Figure 1 It can be seen that a shock absorber 50 can also be installed between the second motor 20 and the engine 10. The working principle of the shock absorber 50 is as follows: when the frame or body vibrates relative to the axle, the piston of the shock absorber 50 will move up and down inside the shock absorber 50, and the oil in the shock absorber 50 cavity will flow repeatedly from one chamber to another through different orifices. At this time, the friction between the orifice wall and the oil and the internal friction between oil molecules will form a damping force on the vibration, so that the vibration energy of the car is converted into oil heat energy, which is then absorbed by the shock absorber 50 and distributed to the atmosphere, thereby controlling the vibration and impact brought by the engine 10, thus helping to ensure the normal operation of the power drive device and extend its service life.

[0062] The power drive unit is also equipped with several drive shafts to ensure the input and output of power flow. These multiple drive shafts are, for example,... Figure 1 The engine crankshaft 60, input shaft 70, intermediate shaft 80, and output shaft 90 are shown. An engine crankshaft 60 is provided between the shock absorber 50 and the engine 10. The engine crankshaft 60 is used to input engine power downstream. At this time, the power is transmitted to the shock absorber 50, and the shock absorber 50 can absorb some of the energy loss caused by vibration. An input shaft 70 is provided between the second motor 20 and the shock absorber 50. The power of the engine 10 can be transmitted to the second motor 20 through the input shaft 70. The second motor 20, the first motor 30 and the planetary gear mechanism 40 are all located on the intermediate shaft 80, which can ensure the stability of the second motor 20, the first motor 30 and the planetary gear mechanism 40 during transmission. The first clutch 402 and the first brake 4011 are located on the output shaft 90 and connected to the first planetary gear 404, which can ensure the coaxial rotation of the first clutch 402 and the first brake 4011 and facilitate engagement with the first planetary gear 404. The output shaft 90 is connected to the planet carrier 405 of the planetary gear mechanism 40 through transmission, which can output power to the wheel ends.

[0063] The power driving device in the embodiment further comprises a first transmission disc 160 fixed with the output shaft 90 and coaxially arranged, and the first clutch 402 is connected with the first transmission disc 160 and the first ring gear 4043 to fix the first ring gear 4043 and the planet carrier of the first planetary gear set 404, so that the structure is more compact. Figure 1 In the middle, a second transmission disc 170 is further arranged, which is fixed with the intermediate shaft 80 and coaxially arranged, and the second clutch 203 can be connected with the second transmission disc 170 to realize the transmission connection between the second motor 20 and the intermediate shaft 80.

[0064] In addition, the engine 10, the second motor 20, the first motor 30 and the planetary gear set mechanism 40 of the power driving device in the embodiment are coaxially arranged in sequence, which is compact in structure and reduces the radial volume. Specifically, the intermediate shaft 80 can pass through the first sun gear 4041 and the second sun gear 4031 of the first motor 30 and the second planetary gear set 403 to realize the transmission connection with the first sun gear 4041, and the occupied space is further reduced. Figure 1 In the middle, the first motor 30 and the second sun gear 4031 are connected by a hollow shaft 180, and the intermediate shaft 80 passes through the hollow shaft 180 to be directly connected to the first sun gear 4041 to realize direct driving.

[0065] In order to better meet the various needs of the vehicle in the actual driving process, the power driving device in the embodiment has different working modes, which are starting engine mode, pure electric driving mode, engine driving mode, hybrid mode, kinetic energy recovery mode, coasting mode and idle power generation mode. Each mode is independent of each other, and the hybrid mode is the superposition of the pure electric driving mode and the engine driving mode, which includes engine driving and electric driving. In the pure electric driving mode, the device includes two gears of forward gear and reverse gear, the car moves forward in the forward gear, and the car moves backward in the reverse gear; in the engine driving mode and the hybrid mode, the device includes two gears of low speed gear and high speed gear, which can achieve the purpose of multi-gear driving.

[0066] The engine 10, the second motor 20, the first motor 30, the second clutch 203, the first clutch 402, the first brake 4011 and the second brake 4012 have different working states. The power driving device in the embodiment has different working states of the above-mentioned components (engine 10, second motor 20, first motor 30, second clutch 203, first clutch 402, first brake 4011 and second brake 4012) in different working modes. In detail, that is:

[0067] In the starting engine mode, only the second motor 20 is driven, and the others are not working;

[0068] In the pure electric drive mode, the second brake 4012 is combined with the second planetary gear 403, the first motor 30 is driven to make the power driving device in the pure electric drive state, the first motor 30 rotates forward in the forward gear, and the first motor 30 reverses in the reverse gear;

[0069] In the engine drive mode, the engine 10 is ignited and started, the second clutch 203 is combined to drive the second motor 20 to generate electricity, and the power driving device is in the engine drive state at this time. The second brake 4012 is disconnected, and there is no electric drive at this time. The first motor 30 does not work. In the low-speed gear, the first brake 4011 is combined, and the first clutch 402 is disconnected. In the high-speed gear, the first brake 4011 is disconnected, and the first clutch 402 is combined.

[0070] In the hybrid mode (superposition of engine drive and electric drive), the engine 10 is ignited and started, and the second clutch 203 is combined. The second motor 20 is driven or generates electricity. If the second motor 20 is driven, the power driving device is in the rapid acceleration mode (also a kind of hybrid mode) at this time. At the same time, the second brake 4012 is combined, and the first motor 30 is in the driving state, which is the superposition of engine drive and electric drive. In the low-speed gear, the first brake 4011 is combined, and the first clutch 402 is disconnected. In the high-speed gear, the first brake 4011 is disconnected, and the first clutch 402 is combined.

[0071] In the kinetic energy recovery mode, the second brake 4012 is combined, and the first motor 30 is in the power generation state, so that the current is input to the battery, and the kinetic energy is converted into electric energy for storage. The rest of the components do not work.

[0072] In the coasting condition, all components do not work at this time, the drive is decoupled, and the resistance is extremely small.

[0073] In the idle charging mode, the engine 10 drives the second motor 20 to generate electricity, and the rest of the components do not work.

[0074] Specifically, this power drive unit mainly consists of two planetary gear sets, two brakes, two clutches, and two motors. The engine crankshaft 60 is connected to the input shaft 70 via a shock absorber 50. The input shaft 70 is driven by the second motor 20, which is also driven by the intermediate shaft 80 via the second clutch 203, and further driven by the first sun gear 4041. The first motor rotor 302 is driven by the second sun gear 4031. The second planetary gear 4032 and the first planetary gear 4042 are mounted on a common planetary carrier 405. The second sun gear 4031 meshes with the second planetary gear 4032, and the second planetary gear 4032 meshes with the second ring gear 4033, which is connected to the second brake 4012. The first sun gear 4041 meshes with the first planet gear 4042, while the first planet gear 4042 meshes with the first ring gear 4043. The first ring gear 4043 is connected to the first brake 4011 and the first clutch 402 respectively. The first clutch 402 is connected to the common planet carrier 405 and the output shaft 90. Finally, the power is gathered at the planet carrier 405 and output through the output shaft 90.

[0075] Please continue to refer to this. Figure 2 , Figure 2 This is a schematic diagram of the power drive device in another embodiment of this application. The power drive device in this embodiment is a four-wheel drive configuration.

[0076] Figure 2 In the embodiment, the power drive device and Figure 1 The power drive device in the embodiments has a basically the same structure, except that related components are added to the power output end. Specifically, the power drive device also includes a first gear 100, a second gear 110, a drive shaft 120, a first bevel gear 130, and a second bevel gear 140. The first gear 100 is coaxially connected to the output shaft 90 and meshes with the second gear 110. The second gear 110 is connected to the first bevel gear 130 through the drive shaft 120 and meshes with the second bevel gear 140, thereby transmitting the rotational speed and torque to the differential 150 to the two wheels.

[0077] The power drive device in this embodiment can be applied to automobiles as power devices. Therefore, automobiles including the power drive device in the above embodiments also have the same technical effects as those in the above embodiments, and will not be described again.

[0078] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A power drive apparatus characterized by comprising: The power driving device comprises an engine (10) and a planetary gear mechanism (40), the planetary gear mechanism (40) comprises a first planetary gear (404), the engine (10) and a first sun gear (4041) of the first planetary gear (404) are in transmission connection, and an annular carrier of the first planetary gear (404) is a power output end of the planetary gear mechanism (40); The planetary gear mechanism (40) further comprises a first brake (4011) and a first clutch (402); When the first brake (4011) is combined, the first clutch (402) is disconnected, and the first brake (4011) brakes a first ring gear (4043) of the first planetary gear (404); when the first clutch (402) is combined, the first brake (4011) is disconnected, and the first ring gear (4043) and the annular carrier of the first planetary gear (404) are fixed.

2. The power drive of claim 1, wherein, The power driving device further comprises a first motor (30), the planetary gear mechanism (40) comprises a second planetary gear (403), the first motor (30) and a second sun gear (4031) of the second planetary gear (403) are in transmission connection, and an annular carrier of the second planetary gear (403) and the annular carrier of the first planetary gear (404) are fixedly connected or integrally arranged.

3. The power drive of claim 2, wherein, The power driving device comprises a second brake (4012), the second brake (4012) is disconnected, the second brake (4012) and a second ring gear (4033) of the second planetary gear (403) are disconnected, the second brake (4012) is combined, and the second brake (4012) brakes the second ring gear (4033) of the second planetary gear (403).

4. The power drive of claim 2, wherein, The power driving device comprises a second motor (20), the engine (10) is in transmission connection with the first sun gear (4031) through the second motor (20); Further comprising a second clutch (203), the second clutch (203) is combined, the second motor (20) and the first sun gear (4031) are in transmission connection, the second clutch (203) is disconnected, and the second motor (20) and the first sun gear (4031) are disconnected.

5. The power drive of claim 4, wherein, The first motor (30), the second motor (20), the engine (10), and the planetary gear mechanism (40) are coaxially arranged.

6. The power drive of claim 5, wherein, The engine (10), the second motor (20), the first motor (30), the second planetary gear (403), and the first planetary gear (404) are sequentially arranged; The power driving device comprises an intermediate shaft (80), the second motor (20) is in transmission connection with the intermediate shaft (80) through the second clutch (203), the intermediate shaft (80) passes through the first motor (30) and the second sun gear (4031) of the second planetary gear (403) to be in transmission connection with the first sun gear (4041).

7. A power drive as claimed in claim 5 or 6, characterised in that, The power driving device further comprises a first transmission disc (160) and an output shaft (90), the output shaft (90) is in transmission connection with the planet carrier of the first planetary gear set (404), the first transmission disc (160) and the output shaft (90) are fixed, and the first clutch (402) connects the first transmission disc (160) and the first ring gear (4043) to fix the first ring gear (4043) and the planet carrier of the first planetary gear set (404) when the first clutch (402) is engaged.

8. A power drive device according to any one of claims 4-6, characterized in that A shock absorber (50) is arranged between the second motor (20) and the engine (10).

9. A power drive device according to any one of claims 4-6, characterized in that The power driving device has the following working modes: The engine start mode, the second motor (20) works; The pure electric driving mode, the second brake (4012) is engaged, and the first motor (30) works; The engine driving mode, the engine (10) works, the second clutch (203) is engaged, and the second motor (20) generates electricity; in the low-speed gear, the first brake (4011) is engaged, and the first clutch (402) is disconnected; in the high-speed gear, the first clutch (402) is engaged, and the first brake (4011) is disconnected; The hybrid mode, the engine (10) and the first motor (30) work, the second clutch (203) is engaged, and the second motor (20) generates electricity or drives; in the low-speed gear, the first brake (4011) is engaged, and the first clutch (402) is disconnected; in the high-speed gear, the first clutch (402) is engaged, and the first brake (4011) is disconnected; The kinetic energy recovery mode, the second brake (4012) is engaged, and the first motor (30) generates electricity; The coasting mode, the engine (10), the first motor (30), and the second motor (20) do not work; The idle power generation mode, the engine (10) drives the second motor (20) to generate electricity.

10. An automobile characterized by comprising: The power driving device according to any one of claims 1-9. The power driving device according to any one of claims 1-9.

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