CN115257331A - Power system and automobile - Google Patents

Abstract

The invention relates to a power system and an automobile, which comprise a first motor, a first planet row, a first clutch and a second clutch; the first planet row comprises a first small sun wheel, a first large sun wheel, a first planet carrier, a first planet wheel and a first gear ring, the first planet wheel is respectively meshed with the first small sun and the first large sun, and the first gear ring is fixed on a shell of the transmission; the first motor is connected to the first small sun gear through a first clutch and is connected to the first large sun gear through a second clutch; the first carrier outputs power to a differential. The power output by the first motor can be correspondingly transmitted to the first small sun gear or the first large sun gear through the first clutch or the second clutch, and after the speed is reduced by the first planet row, the power is output through the first planet carrier, and the gear shifting can be realized only by switching the working states of the first clutch and the second clutch, so that the control is simple and reliable, and the system efficiency is favorably improved; the structure is simple, and the radial size of the speed changer can be reduced.

Description

Powertrain and Automotive

technical field

The invention belongs to the field of power systems, in particular to power systems and automobiles.

Background technique

With the enhancement of environmental protection awareness, various industries have begun to develop and utilize new energy. The automobile industry is an important part of environmental protection. Therefore, the design and development of new energy pure electric vehicles came into being in line with the development of the times. With that comes drivetrain changes and updates.

Some existing cars realize the two-speed speed ratio of the motor through the planetary row. In one speed ratio, the planetary row is locked by the brake to make the planetary row rotate as a whole. The planetary row does not realize the deceleration of the output power of the motor. In the other speed ratio, the planetary row Therefore, in order to meet the power demand of the wheel end, the motor needs to have a large torque, resulting in high cost and large volume of the power system;

In order to reduce the demand for motor torque, it is necessary to set up a multi-stage deceleration structure and cooperate with the clutch to shift gears, resulting in a complicated structure. When shifting gears, it is necessary not only to control the working state of the planetary row, but also to control the working state of the clutch. Control is complicated.

With the development of the pure electric power system, the power, torque and speed requirements of the electric drive of the whole vehicle are gradually increasing. The pure electric configuration with a fixed speed ratio of a single motor is difficult to meet. Power requirements, but the dual-motor two-speed power system uses a synchronizer to shift gears. When shifting, the torque of one motor is completely lost, and the driving comfort is poor.

Contents of the invention

The technical problem to be solved by the present invention is to provide a power system and a vehicle for the problems of complicated structure and complicated control in the existing solutions.

In order to solve the above technical problems, the embodiment of the present invention provides a power system, including a first motor, a first planetary row, a first clutch and a second clutch; the first planetary row includes a first small sun gear, a first The large sun gear, the first planet carrier, the first planetary gear and the first ring gear, the large-diameter end of the first planetary gear meshes with the first small sun, and the small-diameter end of the first planetary gear engages with the The first large sun gear, the first ring gear is fixed on the case of the transmission;

The first motor is connected to the first small sun gear through the first clutch, and connected to the first large sun gear through the second clutch;

The first planet carrier outputs power to the differential.

Optionally, a second motor is also included, and the second motor is connected to the first large sun gear or the first small sun gear.

Optionally, a second planetary row is also included, the second planetary row includes a second sun gear, a second planetary carrier and a second ring gear, and the second ring gear is fixed on the casing of the transmission;

The second sun gear is connected to the first planet carrier, and the second planet carrier meshes with the output ring gear of the differential.

Optionally, the first motor, the second motor, the first clutch, the second clutch, the first planetary row and the second planetary row are arranged coaxially.

Optionally, the ratio of the transmission ratio from the first small sun gear to the second planet carrier to the transmission ratio from the first large sun gear to the second planet carrier is less than 2.

Optionally, an engine is also included, and the engine is connected to the first electric machine.

Optionally, a third clutch is also included, and the engine is connected to the first motor through the third clutch.

Optionally, the power system has a first single-motor drive mode, a second single-motor drive mode, a third single-motor drive mode, a first dual-motor drive mode, and a second dual-motor drive mode:

Combining the first clutch, disengaging the second clutch, driving the first motor, and not working the second motor, so as to establish the first single-motor driving mode;

disengaging the first clutch, combining the second clutch, driving the first motor, and not working the second motor, so as to establish the second single-motor driving mode;

Disengage the first clutch, disengage the second clutch, the first motor does not work, and the second motor drives to establish the third single motor drive mode;

Combining the first clutch, disengaging the second clutch, and driving the first motor and the second motor together to establish the first dual-motor driving mode;

The first clutch is disengaged, the second clutch is engaged, and the first motor and the second motor are jointly driven to establish the second dual-motor driving mode.

Optionally, the power system has a first single-motor drive mode, a second single-motor drive mode, a third single-motor drive mode, a first dual-motor drive mode, a second dual-motor drive mode, and a first engine direct drive mode , the second engine direct drive mode, the first hybrid drive mode and the second hybrid drive mode:

Combining the first clutch, disengaging the second clutch, disengaging the third clutch, driving the first motor, and deactivating the second motor and the engine, so as to establish the first single-motor driving mode ;

disengaging the first clutch, engaging the second clutch, disengaging the third clutch, driving the first motor, and deactivating the second motor and the engine, so as to establish the second single-motor driving mode ;

disengaging the first clutch, disengaging the second clutch, driving the second motor, and deactivating the first motor and the engine, so as to establish the third single-motor driving mode;

Combining the first clutch, disengaging the second clutch, disengaging the third clutch, and driving the first motor and the second motor together to establish the first dual-motor driving mode;

disengaging the first clutch, engaging the second clutch, disengaging the third clutch, and jointly driving the first motor and the second motor to establish the second dual-motor driving mode;

Engage the first clutch, disengage the second clutch, engage the third clutch, the engine drives, the first motor idles or generates electricity, and the second motor does not work to establish the first engine direct drive mode;

Disengage the first clutch, engage the second clutch, engage the third clutch, the engine drives, the first motor idles or generates power, and the second motor does not operate to establish the second motor direct drive mode;

engaging the first clutch, disengaging the second clutch, engaging the third clutch, driving the first motor, driving at least one of the first motor and the second motor, driving the motor, to establish the first hybrid driving mode;

disengaging the first clutch, engaging the second clutch, engaging the third clutch, driving the first motor, driving at least one of the first motor and the second motor, driving the motor, to establish the second hybrid driving mode.

An embodiment of the present invention provides an automobile, including the foregoing power system.

In the power system and automobile provided by the embodiments of the present invention, the power output by the first motor can be transmitted to the first small sun gear or the first large sun gear through the first clutch or the second clutch, and after being decelerated by the first planetary row, Through the output of the first planetary carrier to the differential, only need to switch the working state of the first clutch and the second clutch to realize gear shifting, the control is simple and reliable, which is conducive to improving the system efficiency; there is no need to set up multiple parallel shafts to arrange the speed change The gear has a simple structure and a high degree of integration, which is beneficial to reducing the radial size of the transmission and reducing the cost.

Description of drawings

Fig. 1 is a schematic structural diagram of a power system provided by an embodiment of the present invention;

Fig. 2 is a power transmission roadmap of the power system shown in Fig. 1 in the first single-motor driving mode;

Fig. 3 is a power transmission roadmap of the power system shown in Fig. 1 in the second single-motor driving mode;

The reference signs in the instructions are as follows:

1. The first motor; 2. The second motor; 3. The first clutch; 4. The second clutch;

5. The first planetary row; 51. The first small sun gear; 52. The first large sun gear; 53. The first planet carrier; 54. The first planetary gear; 55. The first ring gear;

6. The second planetary row; 61. The second sun gear; 62. The second planet carrier; 63. The second planetary gear; 64. The second ring gear; 7. The differential.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, the power system provided by the embodiment of the present invention includes a first motor 1, a first planetary row 5, a first clutch 3 and a second clutch 4;

The first planet row 5 includes a first small sun gear 51, a first large sun gear 52, a first planet carrier 53, a first planet gear 54 and a first ring gear 55; wherein, "the first small sun gear 51" and " The first big sun gear 52" is a set of relative concepts, which means that the outer diameter of the first big sun gear 52 is greater than the outer diameter of the first small sun gear 51;

The first planetary wheel 54 has a large-diameter end and a small-diameter end, and the outer diameter of the large-diameter end is greater than the outer diameter of the small-diameter end; the large-diameter end of the first planetary wheel 54 is meshed with the first small sun, and the small-diameter end of the first planetary wheel 54 is in contact with the first small-diameter end. a big sun meshes;

The first ring gear 55 is fixed on the casing of the transmission;

The first motor 1 is connected to the first small sun gear 51 through the first clutch 3, and is connected to the first large sun gear 52 through the second clutch 4;

The first planet carrier 53 outputs power to the differential 7 .

In the power system provided by the embodiment of the present invention, the power output by the first motor 1 can be transmitted to the first small sun gear 51 or the first large sun gear 52 through the first clutch 3 or the second clutch 4, and the first planetary row 5 After deceleration, it is output to the differential 7 through the first planetary carrier 53, only need to switch the working state of the first clutch 3 and the second clutch 4 to realize gear shifting, the control is simple and reliable, and it is beneficial to improve the system efficiency; the structure Simple and highly integrated, it is beneficial to reduce the radial size of the transmission and reduce the cost.

In one embodiment, as shown in FIG. 1 , a second motor 2 is further included, and the second motor 2 is connected to the first large sun gear 52 or the first small sun gear 51 .

The first motor 1 and the second motor 2 share the first planetary row 5 for deceleration, the structure is simple, and the cost is low; the first motor 1 and the second motor 2 can drive the wheel end separately, and can also drive the wheel end jointly, through the first The switching of the working state of the clutch 3 and the second clutch 4 can realize the switching of multiple gears in the single-motor driving mode or the switching of multiple gears in the dual-motor driving mode. The control is simple and reliable, and it can better match the power of the wheel end demand and improve system efficiency; when the power demand at the wheel ends is large, the power system adopts a dual-motor drive mode. In the dual-motor drive mode, the second motor 2 always outputs power, which can avoid the complete loss of drive torque when shifting gears and improve driving performance. Comfort, to better meet the power demand of the vehicle's maximum speed and acceleration from 100 kilometers.

Preferably, the second motor 2 is connected to the first large sun gear 52. Since the second motor 2 and the first planetary row 5 need not be provided with a clutch, the driving efficiency of the second motor 2 is higher than that of the first motor 1, and the second motor 2 is connected to the first large sun gear 52, which is beneficial to increase the torque transmitted from the second motor 2 to the wheel end, and thus is more conducive to improving the system efficiency.

In one embodiment, as shown in FIG. 1 , a second planetary row 6 is further included, and the second planetary row 6 includes a second sun gear 61, a second planet carrier 62, a second planetary gear 63 and a second ring gear 64, The second ring gear 64 is fixed on the casing of the transmission;

The second sun gear 61 is connected to the first planet carrier 53 , and the second planet carrier 62 meshes with the output ring gear of the differential 7 .

The power output by the first motor 1 and the second motor 2 can be decelerated by the first planetary row, and then by the second planetary row 6 for another stage of deceleration, so that the power output by the first motor 1 and the second motor 2 are equal It can be transmitted to the differential 7 after two-stage deceleration to better match the power demand of the wheel end, reduce the torque requirement for the motor, increase the torque output to the wheel end, and optimize the efficiency of the first motor 1 and the second motor 2 Interval, improve system efficiency;

Preferably, the first motor 1, the second motor 2, the first clutch 3, the second clutch 4, the first planetary row 5 and the second planetary row 6 are coaxially arranged, and the structure is simple and compact, which is conducive to reducing the number of transmission shafts , to reduce the size of the transmission.

In one embodiment, as shown in FIG. 1 , the ratio of the transmission ratio from the first small sun gear 51 to the second planet carrier 62 to the transmission ratio from the first large sun gear 52 to the second planet carrier 62 is less than 2. Try to make the step ratio of the two gears shifted by the first clutch 3 and the second clutch 4 (that is, the ratio of the transmission ratio of the first gear to the transmission ratio of the second gear) less than 2, improve the quality of shifting, and avoid excessive step ratios. It greatly affects the selection of the first clutch 3 and the second clutch 4, which is beneficial to reduce the cost.

The power system of the above-mentioned embodiments can be applied to pure electric vehicles, and can also be applied to hybrid vehicles. When applied to hybrid vehicles, the power system needs to be equipped with an engine.

In one embodiment, an engine is also included, and the engine is connected to the first electric machine 1 . The first motor 1 is used to start the engine and drive the wheel ends. When the engine is driven alone, the first motor 1 can idle after starting the engine; when the engine and the first motor 1 jointly drive the wheel end, the first motor 1 outputs driving torque toward the wheel end after starting the engine. The engine, the first motor 1 and the second motor 2 are used as power sources to better match the power demand at the wheel end, and the setting of the second motor 2 can avoid power interruption during the shifting process; the structure is simple, and the power output by the power source It can be transmitted to the first small sun gear 51 or the first large sun gear 52 through the first clutch 3 or the second clutch 4 accordingly, after being shifted by the first planetary row 5, it is output to the differential 7 through the first planetary carrier 53 , only need to switch the working state of the first clutch 3 and the second clutch 4, the shifting can be realized, the control is simple and reliable, which is beneficial to improve the system efficiency and reduce the cost.

Preferably, a third clutch is also included, and the engine is connected with the first electric machine 1 through the third clutch. In pure electric mode, at least one of the first motor 1 and the second motor 2 can be used to drive the wheel end. When the first motor 1 needs to work, the third clutch can be disconnected to prevent the first motor 1 from dragging the engine.

The driving mode and the power route of the preferred embodiment of the power system of the present application are described as follows:

1. The power source is the power system of the first motor 1, which is suitable for pure electric vehicles and has the first single-motor drive mode and the second single-motor drive mode:

1) Combining the first clutch 3, disengaging the second clutch 4, and driving the first motor 1 to establish the first single-motor drive mode;

The power transmission route under the first single-motor drive mode is: first motor 1->first clutch 3->first small sun gear 51->first planetary gear 54->first planetary carrier 53->second sun Wheel 61->second planetary wheel 63->second planetary carrier 62->differential 7->wheel.

2) disengage the first clutch 3, combine the second clutch 4, and drive the first motor 1 to establish the second single-motor drive mode;

The power transmission route under the second single-motor drive mode is: first motor 1->second clutch 4->first big sun gear 52->first planetary gear 54->first planetary carrier 53->second sun Wheel 61->second planetary wheel 63->second planetary carrier 62->differential 7->wheel.

According to different working conditions of the car, switch the power system to the first single-motor drive mode or the second single-motor drive mode. The torque transmitted to the wheel end by the lower first motor 1 is relatively large.

2. The power source is the power system of the first motor 1 and the second motor 2, suitable for pure electric vehicles, with the first single-motor drive mode, the second single-motor drive mode, the third single-motor drive mode, and the first double-motor drive mode Drive mode and second dual motor drive mode:

1) Combining the first clutch 3, disengaging the second clutch 4, driving the first motor 1, and not working the second motor 2, so as to establish the first single-motor driving mode;

As shown in Figure 2, the power transmission route under the first single motor drive mode is: first motor 1 -> first clutch 3 -> first small sun gear 51 -> first planetary gear 54 -> first planet carrier 53->second sun gear 61->second planetary gear 63->second planet carrier 62->differential 7->wheels.

2) disengage the first clutch 3, combine the second clutch 4, the first motor 1 is driven, and the second motor 2 is not working, so as to establish the second single motor drive mode;

As shown in Figure 3, the power transmission route under the second single-motor drive mode is: first motor 1 -> second clutch 4 -> first big sun gear 52 -> first planetary gear 54 -> first planet carrier 53->second sun gear 61->second planetary gear 63->second planet carrier 62->differential 7->wheels.

3) disengage the first clutch 3, disengage the second clutch 4, the first motor 1 does not work, and the second motor 2 drives to establish the third single motor drive mode;

The power transmission route under the third single-motor drive mode is: second motor 2->first large sun gear 52->first planetary gear 54->first planet carrier 53->second sun gear 61->second Planetary gear 63->second planet carrier 62->differential 7->wheel.

When the torque transmitted to the wheel end by the second motor 2 is different from the torque transmitted by the first motor 1 to the wheel end, three single-motor gears can be realized through the first motor 1 and the second motor 2 to better match the power demand of the wheel end .

4) Combining the first clutch 3 and disengaging the second clutch 4, the first motor 1 and the second motor 2 are jointly driven to establish the first dual-motor drive mode;

The power transmission route 1 under the first dual-motor drive mode is: first motor 1 -> first clutch 3 -> first small sun gear 51 -> first planetary gear 54 -> first planetary carrier 53 -> second Sun gear 61->second planetary gear 63->second planet carrier 62->differential 7->wheel;

Power transmission route 2 is: second motor 2 -> first big sun gear 52 -> first planetary gear 54 -> first planet carrier 53 -> second sun gear 61 -> second planetary gear 63 -> second Planet carrier 62->differential 7->wheel;

The first planetary gear 54 couples the power from the first motor 1 and the second motor 2 , and the coupled power is output to the differential 7 through the second planet carrier 62 to drive the wheels.

5) disengage the first clutch 3, combine the second clutch 4, and drive the first motor 1 and the second motor 2 together to establish a second dual-motor drive mode;

The power transmission route 1 in the second dual-motor drive mode is: first motor 1->second clutch 4->first big sun gear 52->first planetary gear 54->first planetary carrier 53->second Sun gear 61->second planetary gear 63->second planet carrier 62->differential 7->wheel;

Power transmission route 2 is: second motor 2 -> first big sun gear 52 -> first planetary gear 54 -> first planet carrier 53 -> second sun gear 61 -> second planetary gear 63 -> second Planet carrier 62->differential 7->wheel;

The first large sun gear 52 couples the power from the first motor 1 and the second motor 2 , and the coupled power is output to the differential 7 through the second planet carrier 62 to drive the wheels.

The dual-motor drive mode (comprising the first dual-motor drive mode and the second dual-motor drive mode) is more convenient than the single-motor drive mode (comprising the first single-motor drive mode, the second single-motor drive mode and the third single-motor drive mode). The end provides more sufficient power, and has two gears, which can meet the power requirements of the vehicle's maximum speed and acceleration from 100 kilometers.

Both the dual-motor drive mode and the single-motor drive mode have multiple gears, which improves system efficiency and reduces vehicle power consumption.

3. The power source is the power system of the first motor 1, the second motor 2 and the engine, which is suitable for hybrid vehicles; when the third clutch is further provided, the power system has the first single-motor drive mode, the second single-motor drive mode, The third single motor drive mode, the first dual motor drive mode, the second dual motor drive mode, the first engine direct drive mode, the second engine direct drive mode, the first hybrid drive mode and the second hybrid drive mode:

1) Combining the first clutch 3, disengaging the second clutch 4, and disengaging the third clutch, the first motor 1 drives, the second motor 2 and the engine do not work, so as to establish the first single motor driving mode.

2) disengage the first clutch 3, combine the second clutch 4, disengage the third clutch, the first motor 1 drives, the second motor 2 and the engine do not work, so as to establish the second single motor driving mode.

3) disengage the first clutch 3, disengage the second clutch 4, the second motor 2 is driven, the first motor 1 and the engine are not working, so as to establish the third single motor driving mode.

4) Combining the first clutch 3, disengaging the second clutch 4, disengaging the third clutch, and driving the first motor 1 and the second motor 2 together to establish the first dual-motor driving mode.

5) The first clutch 3 is disengaged, the second clutch 4 is engaged, the third clutch is disengaged, and the first motor 1 and the second motor 2 are jointly driven to establish a second dual-motor driving mode.

The power transmission routes under the first single-motor drive mode, the second single-motor drive mode, the third single-motor drive mode, the first dual-motor drive mode and the second dual-motor drive mode, and the aforementioned power sources are the first motor 1 and The power transmission routes of the power system of the second motor 2 in the corresponding drive modes are the same, and will not be repeated here.

6) Combine the first clutch 3, separate the second clutch 4, combine the third clutch, drive the engine, the first motor 1 idles or generates electricity, and the second motor 2 does not work, so as to establish the first engine direct drive mode;

The power transmission route under the direct drive mode of the first engine is: first engine -> third clutch -> first motor 1 -> first clutch 3 -> first small sun gear 51 -> first planetary gear 54 -> First planetary carrier 53->second sun gear 61->second planetary gear 63->second planetary carrier 62->differential 7->wheels.

7) disengage the first clutch 3, combine the second clutch 4, combine the third clutch, drive the engine, the first motor 1 idles or generates electricity, and the second motor 2 does not work, so as to establish the second engine direct drive mode;

The power transmission route under the direct drive mode of the second engine is: first engine -> third clutch -> first motor 1 -> second clutch 4 -> first big sun gear 52 -> first planetary gear 54 -> First planetary carrier 53->second sun gear 61->second planetary gear 63->second planetary carrier 62->differential 7->wheels.

When the battery power is low, the wheel end can be directly driven by the engine direct drive mode (including the first engine direct drive mode and the second engine direct drive mode), and the engine direct drive mode has two gears, which is conducive to the engine working at high efficiency. interval.

8) Combine the first clutch 3, separate the second clutch 4, combine the third clutch, drive the first engine, drive at least one of the first motor 1 and the second motor 2, and drive the engine to establish the first hybrid driving mode;

When the engine and the first motor 1 are driven, the power transmission route is the same as the power transmission route under the aforementioned first motor direct drive mode; when the engine and the second motor 2 are driven, or the engine, the first motor 1 and the second motor 2 are driven , the power transmission routes 1 and 2 are respectively the same as the power transmission routes in the aforementioned first engine direct drive mode and the aforementioned second single-motor drive mode; no more details are given here.

9) disengage the first clutch 3, combine the second clutch 4, combine the third clutch, drive the first engine, drive at least one of the first motor 1 and the second motor 2, and drive the engine to establish a second hybrid driving mode;

When the engine and the first motor 1 are driven, the power transmission route is the same as the power transmission route under the aforementioned second engine direct drive mode; when the engine and the second motor 2 are driven, or the engine, the first motor 1 and the second motor 2 are driven , the power transmission routes 1 and 2 are the same as the power transmission routes in the aforementioned second engine direct drive mode and the aforementioned second single-motor drive mode respectively; no more details are given here.

At any vehicle speed, it can switch to a hybrid drive mode (including the first hybrid drive mode and the second hybrid drive mode). The hybrid drive mode has multiple gears, which is beneficial to improve system efficiency.

In addition, the engine can also drive the first motor 1 to generate electricity, and the first motor 1 or the second motor 2 can also recover braking energy.

If the third clutch is not provided, the third clutch will not be controlled accordingly, and there will be no first single-motor drive mode, second single-motor drive mode, and dual-motor drive mode, which will not be repeated here.

The embodiment of the present invention also provides a car, including the power system mentioned in any one of the foregoing embodiments.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Inside.

Claims (10)

1. A power system comprises a first motor and a first planet row, and is characterized by further comprising a first clutch and a second clutch; the first planet row comprises a first small sun gear, a first large sun gear, a first planet carrier, a first planet gear and a first gear ring, the large-diameter end of the first planet gear is meshed with the first small sun gear, the small-diameter end of the first planet gear is meshed with the first large sun gear, and the first gear ring is fixed on a shell of the transmission;

the first motor is connected to the first small sun gear through the first clutch and is connected to the first large sun gear through the second clutch;

the first carrier outputs power to a differential.

2. The power system of claim 1, further comprising a second electric machine connected to the first large sun gear or the first small sun gear.

3. The powertrain system of claim 2, further comprising a second planetary row including a second sun gear, a second planet carrier, and a second ring gear, the second ring gear being fixed to a housing of the transmission;

the second sun gear is connected to the first planet carrier, and the second planet carrier is meshed with an output gear ring of the differential.

4. The powertrain system of claim 3, wherein the first electric machine, the second electric machine, the first clutch, the second clutch, the first planetary row, and the second planetary row are coaxially arranged.

5. The powertrain system of claim 3, wherein a ratio of a gear ratio from the first small sun gear to the second carrier to a gear ratio from the first large sun gear to the second carrier is less than 2.

6. The powertrain system of claim 2, further comprising an engine coupled to the first electric machine.

7. The powertrain system of claim 6, further comprising a third clutch, the engine being connected to the first electric machine through the third clutch.

8. The powertrain system of claim 2, wherein the powertrain system has a first single motor drive mode, a second single motor drive mode, a third single motor drive mode, a first dual motor drive mode, and a second dual motor drive mode:

engaging the first clutch, disengaging the second clutch, the first motor driving, the second motor not operating to establish the first single motor drive mode;

disengaging the first clutch and engaging the second clutch, the first motor driving, the second motor not operating to establish the second single motor drive mode;

disengaging the first clutch and the second clutch, the first motor not operating and the second motor driving to establish the third single motor drive mode;

the first clutch is combined, the second clutch is separated, and the first motor and the second motor are driven together to establish the first double-motor driving mode;

and disengaging the first clutch, and jointly driving the first motor and the second motor by combining the second clutch so as to establish the second dual-motor driving mode.

9. The powertrain system of claim 7, wherein the powertrain system has a first single motor drive mode, a second single motor drive mode, a third single motor drive mode, a first dual motor drive mode, a second dual motor drive mode, a first direct engine drive mode, a second direct engine drive mode, a first hybrid drive mode, and a second hybrid drive mode:

engaging the first clutch, disengaging the second clutch, disengaging the third clutch, the first motor driving, the second motor and the engine not operating to establish the first single motor drive mode;

disengaging the first clutch, engaging the second clutch, disengaging the third clutch, the first motor driving, the second motor and the engine not operating to establish the second single motor drive mode;

disengaging the first clutch, disengaging the second clutch, the second motor driving, the first motor and the engine not operating to establish the third single motor drive mode;

combining the first clutch, separating the second clutch, separating the third clutch, and jointly driving the first motor and the second motor to establish the first double-motor driving mode;

the first clutch is disconnected, the second clutch is combined, the third clutch is disconnected, and the first motor and the second motor are driven together to establish the second double-motor driving mode;

the first clutch is combined, the second clutch is separated, the third clutch is combined, the engine is driven, the first motor idles or generates power, the second motor does not work, and the first engine direct-drive mode is established;

the first clutch is separated, the second clutch is combined, the third clutch is combined, the engine is driven, the first motor idles or generates power, the second motor does not work, and the second engine direct-drive mode is established;

engaging the first clutch, disengaging the second clutch, engaging the third clutch, the first engine drive, at least one of the first electric machine and the second electric machine drive, the engine drive to establish the first hybrid drive mode;

disengaging the first clutch, engaging the second clutch, engaging the third clutch, the first engine drive, at least one of the first electric machine and the second electric machine drive, the engine drive to establish the second hybrid drive mode.

10. A vehicle comprising a power system according to any one of claims 1 to 9.

Images