CN112606675B - Hybrid power driving method and device, power system, vehicle and related equipment - Google Patents

Abstract

The invention relates to a vehicle drive system technology, specifically a hybrid drive method, device, power system, vehicle and related equipment. The above-mentioned hybrid drive device includes a transmission mechanism and a clutch mechanism. The transmission mechanism is used to connect with the power output shaft of the engine and the motor; the clutch mechanism is connected to the transmission mechanism and is used to change the power transmission route of the transmission mechanism and the planetary gear train assembly. Transmission ratio; the transmission mechanism includes a planetary gear train, an intermediate shaft and a transmission gear assembly, and the planetary gear train includes a sun gear; the sun gear and transmission gear assembly are arranged on the intermediate shaft; the transmission gear assembly is connected to the clutch mechanism. Through different engagement and separation modes between the transmission gear assembly and the clutch mechanism, a variety of power transmission routes and transmission ratios are formed to form multiple working modes and multiple gears, saving a lot of space while forming multiple working modes. Multiple gears to suit most application scenarios.

Description

Hybrid drive methods, devices, power systems, vehicles and related equipment

Technical field

The invention relates to a vehicle drive system technology, specifically a hybrid drive method, device, power system, vehicle and related equipment.

Background technique

As people in today's society become increasingly aware of energy conservation and environmental protection, new energy vehicle technology has begun to develop rapidly. Hybrid vehicle drive technology is the core stage of the development process of new energy vehicles. However, the existing hybrid vehicle driving technology is often structurally driven through a traditional gear train, which has the disadvantages of complex structure and large space occupation. Moreover, the number of hybrid modes in the existing technology is limited by the traditional gear train. Less, unable to meet the needs of most scenarios. Therefore, it is of great value to develop a multi-mode hybrid drive device with excellent cost performance.

Contents of the invention

The embodiments of the present invention are intended to solve at least one of the technical problems existing in the prior art or related technologies.

To this end, one object of embodiments of the present invention is to provide a hybrid drive device.

Another object of embodiments of the present invention is to provide a control method for the above-mentioned hybrid drive device.

Another object of embodiments of the present invention is to provide a computer-readable storage medium that stores the control method of the hybrid drive device.

Another object of embodiments of the present invention is to provide a hybrid power system including the above-mentioned hybrid drive device.

Another object of embodiments of the present invention is to provide a vehicle including the above-mentioned hybrid system.

In order to achieve the above object, the technical solution of the first aspect of the embodiment of the present invention provides a hybrid drive device for cooperating with the engine and/or motor to switch the driving mode of the vehicle. The hybrid drive device includes: a transmission mechanism and a clutch mechanism. , wherein the transmission mechanism is used to connect with the power output shaft of the engine and motor; the clutch mechanism is connected to the transmission mechanism and is used to change the power transmission route of the transmission mechanism and the transmission ratio of the planetary gear train assembly; the transmission mechanism includes: planetary gear train , intermediate shaft and transmission gear assembly. The planetary gear train includes: a sun gear; the sun gear and transmission gear assembly are arranged on the intermediate shaft; the transmission gear assembly is connected to the clutch mechanism.

In addition, the hybrid drive device in the above technical solution provided by the embodiment of the present invention may also have the following additional technical features:

In a technical solution of the embodiment of the present invention, the clutch mechanism includes: a first clutch assembly, a second clutch assembly and a synchronization assembly. The first clutch assembly is used to connect with the power output shaft of the engine; the planetary gear train also includes: a planet carrier ; The second clutch component is connected to the planet carrier; the synchronization component is used to connect with the power output shaft of the motor; the transmission gear component includes: a third gear, a fourth gear and a fifth gear; the fifth gear is movably connected to the planet carrier;

The first clutch assembly includes: a first gear, a second gear, a first clutch and a second clutch. The first gear is movably connected to the first clutch, and the first gear is meshed with the third gear; the second gear is movably connected to the second gear. a clutch, and the second gear meshes with the fourth gear;

The second clutch assembly includes: a third clutch and an eighth gear, one end of the third clutch is connected to the planet carrier, and the other end of the third clutch is connected to the eighth gear;

The synchronization component includes: a synchronizer, a sixth gear and a seventh gear. One end of the sixth gear is connected to the planet carrier, and the sixth gear is located at one end of the synchronizer; the seventh gear meshes with the fourth gear, and the seventh gear is located at the synchronizer. the other end of the device.

In a technical solution of the embodiment of the present invention, the hybrid driving device further includes: a brake, the planetary gear train further includes: a ring gear, and the brake is connected to the ring gear.

In a technical solution of the embodiment of the present invention, the hybrid drive device further includes: a power transmission device, the power transmission device includes: a power output shaft, a ninth gear, a differential gear and a differential, the ninth gear and the eighth gear The gears are connected to the power output shaft in turn; the ninth gear is meshed with the differential gear; and the differential is connected to the differential gear.

The technical solution of the second aspect of the embodiment of the present invention provides a control method for a hybrid drive device, which is used to control the above-mentioned hybrid drive device and receive control instructions; and control the above-mentioned hybrid drive according to the working mode indicated by the above-mentioned control instructions. The device, wherein the working mode includes: any one of a parking power generation mode, a motor drive mode, an engine drive mode, a hybrid parallel drive mode, and a driving power generation mode.

In a technical solution of an embodiment of the present invention, the step of controlling the hybrid drive device according to the working mode indicated by the above control instruction includes: controlling to change the engagement of the clutch mechanism and the transmission gear assembly according to the working mode indicated by the above control instruction or Detach the relationship to control the hybrid drive.

In a technical solution of an embodiment of the present invention, when the control command is a shift command, the step of controlling the hybrid drive device according to the working mode indicated by the control command includes: controlling the motor to perform torque filling according to the shift command.

The technical solution of the third aspect of the embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of any of the above control methods for a hybrid transmission device are implemented.

The technical solution of the fourth aspect of the embodiment of the present invention provides a hybrid system. The hybrid system includes: the above-mentioned hybrid drive device, an engine and a motor. One end of the hybrid drive device is connected to the engine, and the other end is connected to the motor.

The technical solution of the fifth aspect of the embodiment of the present invention provides a vehicle, which includes the above-mentioned hybrid system.

Compared with the prior art, the present invention at least includes the following beneficial effects:

The invention provides a hybrid drive device for cooperating with an engine and/or a motor to switch the driving mode of a vehicle. The hybrid drive device is composed of a transmission mechanism and a clutch mechanism. The transmission mechanism is used for power output with the engine and the motor. The shafts are connected, and the clutch mechanism is connected to the transmission mechanism, which is used to change the power transmission route of the transmission mechanism and the transmission ratio of the planetary gear train assembly. The transmission mechanism includes: a planetary gear train, an intermediate shaft and a transmission gear assembly. Through the transmission gear assembly Different engagement and separation modes between the clutch mechanism and the clutch mechanism form a variety of power transmission routes and transmission ratios to form a variety of working modes. Furthermore, each working mode can form multiple gears. The hybrid drive device uses a compact and relatively simple structure to save a lot of space while forming multiple working modes and multiple gears to adapt to most application scenarios.

Other advantages, objects and features of the hybrid drive device of the present invention will be partly reflected by the following description, and partly will be understood by those skilled in the art through the research and practice of the present invention.

Description of the drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

Figure 1 shows a schematic structural diagram of a hybrid power system according to an embodiment of the present invention;

Figure 2 shows a schematic structural diagram of a hybrid drive device according to an embodiment of the present invention;

Figure 3 shows a schematic diagram of the power transmission route of the hybrid system in the parking power generation operating mode according to an embodiment of the present invention;

Figure 4 shows another schematic diagram of the power transmission route of the hybrid system in the parking power generation operating mode according to an embodiment of the present invention;

Figure 5 shows a schematic diagram of a power transmission route in the motor driving operating mode of the hybrid system according to an embodiment of the present invention;

Figure 6 shows another schematic diagram of the power transmission route of the motor drive operating mode of the hybrid system according to an embodiment of the present invention;

Figure 7 shows a schematic diagram of yet another power transmission route in the motor drive operating mode of the hybrid system according to an embodiment of the present invention;

Figure 8 shows a schematic diagram of the power transmission route of the engine-driven first gear working mode of the hybrid system according to an embodiment of the present invention;

Figure 9 shows a schematic diagram of the power transmission route of the engine-driven second-speed operating mode of the hybrid system according to an embodiment of the present invention;

Figure 10 shows a schematic diagram of the power transmission route of the engine-driven third-speed operating mode of the hybrid system according to an embodiment of the present invention;

Figure 11 shows a schematic diagram of the power transmission route of the engine-driven 4-speed working mode of the hybrid system according to an embodiment of the present invention;

Figure 12 shows a schematic diagram of the power transmission route of the hybrid parallel drive 1st gear working mode of the hybrid power system according to an embodiment of the present invention;

Figure 13 shows another schematic diagram of the power transmission route of the hybrid parallel drive 1st gear working mode of the hybrid system according to an embodiment of the present invention;

Figure 14 shows a state logic diagram of a shift element of a hybrid drive device according to an embodiment of the present invention;

Figure 15 shows a schematic structural block diagram of a computer-readable storage medium according to one embodiment of the present invention.

Among them, the corresponding relationship between the reference signs and component names in Figures 1 and 2 is:

1 engine, 2 torsional damper, 3 engine power take-off shaft, 4 first clutch, 5 second clutch, 6 first gear, 7 second gear, 8 planetary gear train, 9 sun gear, 10 planetary gear, 11 Ring gear, 12 planet carrier, 13 brake, 14 countershaft, 15 third gear, 16 fourth gear, 17 fifth gear, 18 sixth gear, 19 seventh gear, 20 motor power output shaft, 21 synchronizer, 22 motor, 23 third clutch, 24 eighth gear, 25 power output shaft, 26 ninth gear, 27 differential gear, 28 differential, 100 transmission mechanism, 200 clutch mechanism, 300 transmission gear assembly, 400 first Clutch assembly, 500 second clutch assembly, 600 synchronization assembly, 700 power transmission device.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and examples, so that those skilled in the art can implement it with reference to the text of the description.

It should be understood that terms such as "having," "comprising," and "including" as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

In one embodiment of the present invention, as shown in Figures 1 and 2, a hybrid drive device is provided for switching the working status of the engine 1 and/or the motor 22. The hybrid drive device includes: a transmission mechanism 100 and a clutch mechanism 200, wherein the transmission mechanism 100 is used to connect with the engine 1 and the power output shaft 20 of the motor; the clutch mechanism 200 is connected to the transmission mechanism 100, and is used to change the power transmission route of the transmission mechanism 100 and the components of the planetary gear train 8 transmission ratio; the transmission mechanism 100 includes: a planetary gear train 8, an intermediate shaft 14 and a transmission gear assembly 300; the planetary gear train 8 includes: a sun gear 9; the sun gear 9 and the transmission gear assembly 300 are arranged on the intermediate shaft 14; the transmission gear Assembly 300 is connected to clutch mechanism 200 .

In this embodiment, the hybrid drive device is composed of a transmission mechanism 100 and a clutch mechanism 200. The transmission mechanism 100 is used to connect to the engine 1 and the power output shaft 20 of the motor. The clutch mechanism 200 is connected to the transmission mechanism 100. In order to change the power transmission route of the transmission mechanism 100 and the transmission ratio of the planetary gear train 8 components, specifically, the transmission mechanism 100 is composed of a planetary gear train 8, an intermediate shaft 14 and a transmission gear assembly 300. The planetary gear train 8 is composed of a sun gear 9, The ring gear 11, the planet carrier 12, and the planet gears 10 are composed of the sun gear 9 and the transmission gear assembly 300 are arranged on the intermediate shaft 14. Through different engagement or separation modes of the transmission gear assembly 300 and the clutch mechanism 200, together with the intermediate shaft 14 and The planetary gear train 8 forms a variety of power transmission paths, thereby forming a variety of working modes, and due to the engagement of different transmission gears in the clutch mechanism 200 and the transmission gear assembly 300, a variety of transmission ratios are formed, so that each working mode can Multiple gears are formed to adapt to most application scenarios.

And since the planetary gear train 8 is arranged on the intermediate shaft 14, and cooperates with the clutch mechanism 200 and the transmission gear mechanism, the change of the gear position can be realized through the planetary gear train 8, both driven by the engine 1 and driven by the motor 22. Thus, multi-gear driving driven by the motor 22 is realized without the need for additional gear pairs, and the structure is compact and space-saving.

In one embodiment of the present invention, as shown in Figures 1 and 2, the clutch mechanism 200 includes: a first clutch assembly 400, a second clutch assembly 500 and a synchronization assembly 600. The first clutch assembly 400 is used to communicate with the power of the engine. The output shaft 20 is connected; the planetary gear train 8 also includes: the planet carrier 12; the second clutch assembly 500 is connected to the planet carrier 12; the synchronization assembly 600 is used to connect with the power output shaft 20 of the motor; the transmission gear assembly 300 includes: a third gear 15. The fourth gear 16 and the fifth gear 17; the fifth gear 17 is movably connected to the planet carrier 12; the first clutch assembly 400 includes: the first gear 6, the second gear 7, the first clutch 4 and the second clutch 5. The first gear 6 is movably connected to the first clutch 4, and the first gear 6 is meshed with the third gear 15; the second gear 7 is movably connected to the second clutch 5, and the second gear 7 is meshed with the fourth gear 16; The second clutch assembly 500 includes: a third clutch 23 and an eighth gear 24. One end of the third clutch 23 is connected to the planet carrier 12, and the other end of the third clutch 23 is connected to the eighth gear 24; the synchronization assembly 600 includes: a synchronizer 21. The sixth gear 18 and the seventh gear 19. One end of the sixth gear 18 is connected to the planet carrier 12, and the sixth gear 18 is located at one end of the synchronizer 21; the seventh gear 19 meshes with the fourth gear 16, and the seventh gear 18 meshes with the fourth gear 16. Gear 19 is located at the other end of synchronizer 21 .

In this embodiment, the clutch mechanism 200 is composed of a first clutch assembly 400, a second clutch assembly 500 and a synchronization assembly 600, wherein the first clutch assembly 400 is used to connect with the power output shaft 20 of the engine; the second clutch assembly 500 Connected to the planet carrier 12; the synchronization assembly 600 is used to connect with the power output shaft 20 of the motor; and the transmission gear assembly 300 is respectively provided with a third gear 15, a fourth gear 16 and a fifth gear 17 to connect with the clutch mechanism 200, and The third gear 15 , the fourth gear 16 , the sun gear 9 and the fifth gear 17 are fixedly arranged on the intermediate shaft 14 in sequence.

The first clutch assembly 400 is composed of a first gear 6, a second gear 7, a first clutch 4 and a second clutch 5. The first gear 6, the first clutch 4, the second clutch 5 and the second gear 7 are arranged in sequence on the engine. On the power output shaft 20, the first gear 6 is movably connected to the first clutch 4, and the first gear 6 is meshed with the third gear 15; the second gear 7 is movably connected to the second clutch 5, and the second gear 7 Engaged in the fourth gear 16, when the first clutch 4 is engaged with the first gear 6, and the second clutch 5 is separated from the second gear 7, the power generated by the engine 1 is transmitted to the hybrid drive device via the following path: power output of the engine Shaft 20, first gear 6, third gear 15, intermediate shaft 14; when the second clutch 5 is engaged with the second gear 7 and the first clutch 4 is separated from the first gear 6, the power generated by the engine 1 is transmitted to the hybrid power The route of the driving device is: the power output shaft 20 of the engine, the second gear 7, the fourth gear 16, and the intermediate shaft 14. This forms a variety of power transmission routes and various transmission ratios.

The second clutch assembly 500 includes: a third clutch 23 and an eighth gear 24 , one end of the third clutch 23 is fixedly connected to the planet carrier 12 , the other end of the third clutch 23 is fixedly connected to the eighth gear 24 , and the fifth gear 17 It is movably connected with the planet carrier 12. Since the fifth gear 17 and the sun gear 9 are fixedly connected to the intermediate shaft 14, the rotational speeds are consistent. When the third clutch 23 is engaged with the fifth gear 17, the planet carrier 12 and the sun gear 9 are fixed. At this time The transmission ratio of the planetary gear train 8 is 1, and the power generated by the engine 1 or the motor 22 is transmitted to the hybrid drive device through the intermediate shaft 14, the fifth gear 17, the planet carrier 12, and the eighth gear 24; when the third clutch 23 and When the fifth gear 17 is separated, the power generated by the engine 1 or the motor 22 is transmitted to the hybrid drive device through the intermediate shaft 14 , the planet carrier 12 , and the eighth gear 24 . This forms a variety of power transmission routes and various transmission ratios.

The synchronization assembly 600 includes: a synchronizer 21, a sixth gear 18 and a seventh gear 19. One end of the sixth gear 18 is connected to the planet carrier 12, and the sixth gear 18 is located at one end of the synchronizer 21; the seventh gear 19 meshes with the planet carrier 12. The four gears 16 and the seventh gear 19 are located at the other end of the synchronizer 21 , and the sixth gear 18 and the seventh gear 19 are freely sleeved on the power output shaft 20 of the motor. The synchronizer 21 selects to engage with the sixth gear 18 or the seventh gear 19 to adjust the power transmission path. Specifically, when the synchronizer 21 engages with the sixth gear 18, the power generated by the motor 22 is transmitted to the hybrid drive device via a route. The power output shaft 20 of the motor, the sixth gear 18, and the planet carrier 12; when the synchronizer 21 is engaged with the seventh gear 19, the power generated by the motor 22 is transmitted to the hybrid drive device through the power output shaft 20 of the motor, the sixth gear 18, and the planet carrier 12. Four gears 16 and intermediate shaft 14. The power generated by the engine 1 can also be transmitted to the motor 22 through the above two routes for generating electricity. This forms a variety of power transmission routes and various transmission ratios.

The synchronizer 21 can choose a wet clutch. By arranging the engagement and separation of the clutch mechanism 200 and the transmission mechanism 100, multiple working modes are formed, and each working mode can form multiple gears, which increases the transmission ratio and the number of working modes of the hybrid drive device, and can adapt to most application scenarios. At the same time, the speed difference during shifting can be reduced through the cooperation of the synchronizer 21, the first clutch 4, the second clutch 5, the third clutch 23 and the engine 1, so that a simple single-plate clutch can be used to replace the more complex structure. The wet clutch saves costs and also reduces the difficulty of shifting gears.

In one embodiment of the present invention, as shown in FIGS. 1 and 2 , the hybrid drive device further includes a brake 13 , and the planetary gear train 8 further includes a ring gear 11 , and the brake 13 is connected to the ring gear 11 .

In this embodiment, the hybrid drive device is also provided with a brake 13 , which is connected to the ring gear 11 . When the brake 13 is engaged with the ring gear 11 , the ring gear 11 is locked, thereby changing the planetary gear train 8 transmission ratio. By arranging the engagement and disengagement of the brake 13 and the ring gear 11, a variety of transmission ratios are formed, further increasing the number of transmission ratios of the hybrid drive device.

In one embodiment of the present invention, as shown in Figures 1 and 2, the hybrid drive device also includes: a power transmission device 700. The power transmission device 700 includes: a power output shaft 25, a ninth gear 26, and a differential gear. 27 and differential 28, the ninth gear 26 and the eighth gear 24 are connected to the power output shaft 25 in sequence; the ninth gear 26 is meshed with the differential gear 27; the differential 28 is connected to the differential gear 27.

In this embodiment, the hybrid drive device is also provided with a power transmission device 700. The power transmission device 700 is composed of a power output shaft 25, a ninth gear 26, a differential gear 27 and a differential 28, wherein the ninth gear 26 and the eighth gear 24 are connected to the power output shaft 25 in sequence, the ninth gear 26 is meshed with the differential gear 27, and the differential 28 is connected to the differential gear 27. This arrangement allows the engine 1 and/or the motor 22 to generate After changing the working mode and the gear corresponding to the working mode through the hybrid drive device, the power is transmitted to the power output shaft 25 by the eighth gear 24, transmitted to the differential gear 27 by the ninth gear 26, and then via the differential 28 Transmits power to the drive shaft.

In one embodiment of the present invention, as shown in Figure 14, a control method for a hybrid drive device is provided, used to control the above-mentioned hybrid drive device, S610, receive a control instruction; S620, according to the instructions of the above control instruction The working mode controls the above-mentioned hybrid drive device, wherein the working mode includes any one of: parking power generation mode, motor drive mode, engine 11 drive mode, hybrid parallel drive mode, and driving power generation mode.

In this embodiment, a control method for a hybrid power transmission device is provided, which is used to control the above-mentioned hybrid power drive device. A control device is provided to control the current working mode of the above-mentioned hybrid power drive device. The control device receives the switching working mode. Instructions control the first clutch 4 and the first gear 6, the second clutch 5 and the second gear 7, the third clutch 23 and the fifth gear 17, the synchronizer 21 and the sixth gear 18 or the seventh gear 19, the brake 13 and The engagement or disengagement of the ring gear 11 forms multiple working modes, including any one of: parking power generation mode, motor drive mode, engine drive mode, hybrid parallel drive mode, and driving power generation mode.

In one embodiment of the present invention, the step of controlling the hybrid drive device according to the working mode indicated by the above control instruction includes: controlling to change the engagement of the clutch mechanism 200 and the transmission gear assembly 300 according to the working mode indicated by the above control instruction or Detach the relationship to control the hybrid drive.

In this embodiment, referring to FIGS. 3 to 13 , in the parking power generation mode working mode, the control device receives the parking power generation mode working mode instruction and controls the engine 1 to provide power.

In this working mode, when the control device determines that the first gear command is received, the control synchronizer 21 is engaged with the seventh gear 19, the first clutch 4 is engaged, the second clutch 5 is disengaged, the third clutch 23 is disengaged, and the brake 13 is disengaged. The power transmission route in this mode is: engine 1, torsional damper 2, engine power output shaft 20, first gear 6, third gear 15, intermediate shaft 14, fourth gear 16, seventh gear 19. The power is transmitted to the power output shaft 20 of the motor.

In this working mode, when the control device determines that the second gear command is received, the control synchronizer 21 is engaged with the seventh gear 19, the first clutch 4 is disengaged, the second clutch 5 is engaged, the third clutch 23 is disengaged, and the brake 13 is disengaged. The power transmission route in this mode is: engine 1, torsional damper 2, engine power output shaft 20, second gear 7, fourth gear 16, seventh gear 19, which transmits power to the power output shaft 20 of the motor. .

Moreover, the power transmission path of the starting working mode of the stopped engine 1 is the same as that of the stopping power generation working mode. Both have two gears. The torque transmission direction is opposite, that is, the power is generated by the motor 22, the power is transmitted to the engine 1, and the engine 1 is reversely dragged to the appropriate speed. Start again.

In the motor 22 driving working mode, the control device receives the motor 22 driving working mode instruction and controls the motor 22 to provide power.

In this working mode, when the control device determines that the first gear command is received, the control synchronizer 21 is engaged with the seventh gear 19, the first clutch 4 is disengaged, the second clutch 5 is disengaged, the third clutch 23 is disengaged, and the brake 13 is engaged. The power transmission route in this mode is: motor 22, motor power output shaft 20, seventh gear 19, fourth gear 16, intermediate shaft 14, sun gear 9, planet carrier 12, eighth gear 24, power output shaft 25 , the ninth gear 26 and the differential gear 27, and then transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the second gear command is received, the control synchronizer 21 is engaged with the seventh gear 19, the first clutch 4 is disengaged, the second clutch 5 is disengaged, and the third clutch 23 is engaged. At this time, the planet carrier 12 and the sun gear 9 are fixed, the transmission ratio of the planetary gear train 8 is 1, and the brake 13 is separated. The power transmission route in this mode is: motor 22, motor power output shaft 20, seventh gear 19, fourth gear 16, intermediate shaft 14, fifth gear 17, planet carrier 12, eighth gear 24, power output shaft 25. The ninth gear 26 and the differential gear 27 transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the third gear command is received, the control synchronizer 21 is engaged with the sixth gear 18, the first clutch 4 is disengaged, the second clutch 5 is disengaged, the third clutch 23 is disengaged, and the brake 13 is disengaged. The power transmission route in this mode is: motor 22, motor power output shaft 20, sixth gear 18, planet carrier 12, eighth gear 24, power output shaft 25, ninth gear 26, differential gear 27, and then Power is transmitted to the drive shaft via differential 28 .

In the engine driving mode, the control device receives the engine 1 driving operating mode instruction and controls the engine 1 to provide power.

In this working mode, when the control device determines that the first gear command is received, it controls the first clutch 4 to engage, the second clutch 5 to disengage, the third clutch 23 to disengage, and the brake 13 to engage. The power transmission route of the 1st gear is: engine 1, torsional damper 2, engine power output shaft 20, first gear 6, third gear 15, intermediate shaft 14, sun gear 9, planet carrier 12, eighth The gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27 transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the second gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, the third clutch 23 to disengage, and the brake 13 to engage. The power transmission route of the 2nd gear is: engine 1, torsional damper 2, engine power output shaft 20, second gear 7, fourth gear 16, intermediate shaft 14, sun gear 9, planet carrier 12, eighth The gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27 transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the third gear command is received, it controls the first clutch 4 to be engaged, the second clutch 5 to be disengaged, the third clutch 23 to be engaged, and the brake 13 to be engaged. The power transmission route of the 3rd gear is: engine 1, torsion damper 2, engine power output shaft 20, first gear 6, third gear 15, intermediate shaft 14, sun gear 9, planet carrier 12, eighth The gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27 transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the 4th gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, and the third clutch 23 to engage. At this time, the planet carrier 12 and the sun gear 9 are fixed, and the planetary gear system 8 gear ratio is 1, brake 13 is disengaged. The power transmission route of the 4th gear is: engine 1, torsional damper 2, engine power output shaft 20, second gear 7, fourth gear 16, intermediate shaft 14, sun gear 9, planet carrier 12, eighth The gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27 transmit the power to the drive shaft through the differential 28.

In the hybrid parallel drive operating mode, the control device receives the hybrid parallel drive operating mode instruction and controls the engine 1 and the motor 22 to provide power.

In this working mode, it is first determined whether the synchronizer 21 is engaged with the sixth gear 18 or the seventh gear 19. When the synchronizer 21 is engaged with the seventh gear 19, the received gear command is continued to be determined.

In this working mode, when the control device determines that the first gear command is received, the first clutch 4 is engaged, the second clutch 5 is disengaged, the third clutch 23 is disengaged, and the brake 13 is engaged. The power transmission route of the 1st gear is: the power generated by the motor 22 passes through the power output shaft 20 of the motor, the seventh gear 19, and the fourth gear 16 at the intermediate shaft 14 and is combined with the power generated by the 1st gear of the engine drive mode, and then passes through the planet carrier. 12. The eighth gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27, and then transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the second gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, the third clutch 23 to disengage, and the brake 13 to engage. The power transmission route of the 2nd gear is: the power generated by the motor 22 passes through the power output shaft 20 of the motor, the seventh gear 19, and the fourth gear 16 at the intermediate shaft 14 and is combined with the power generated by the 2nd gear of the engine drive mode, and then passes through the planet carrier. 12. The eighth gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27, and then transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the third gear command is received, it controls the first clutch 4 to be engaged, the second clutch 5 to be disengaged, the third clutch 23 to be engaged, and the brake 13 to be engaged. The power transmission route of the 3rd gear is: the power generated by the motor 22 passes through the power output shaft 20 of the motor, the seventh gear 19, the fourth gear 16, and is combined with the power generated by the 3rd gear of the engine drive mode at the intermediate shaft 14, and then passes through the planet carrier. 12. The eighth gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27, and then transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the 4th gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, and the third clutch 23 to engage. At this time, the planet carrier 12 and the sun gear 9 are fixed, and the planetary gear system 8 gear ratio is 1, brake 13 is disengaged. The power transmission route of the 4th gear is: the power generated by the motor 22 passes through the power output shaft 20 of the motor, the seventh gear 19, the fourth gear 16, and is combined with the power generated by the 4th gear of the engine drive mode at the intermediate shaft 14, and then passes through the planet carrier. 12. The eighth gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27, and then transmit the power to the drive shaft through the differential 28.

When the synchronizer 21 is engaged with the sixth gear 18, the received gear command is continued to be judged.

In this working mode, when the control device determines that the first gear command is received, the first clutch 4 is engaged, the second clutch 5 is disengaged, the third clutch 23 is disengaged, and the brake 13 is engaged. The power transmission route of the 1st gear is: the power generated by the motor 22 passes through the power output shaft 20 of the motor and the sixth gear 18, and merges with the power generated by the 1st gear of the engine drive mode at the planet carrier 12, and then passes through the planet carrier 12, the eighth gear 18 and the planet carrier 12. The gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27 transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the second gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, the third clutch 23 to disengage, and the brake 13 to engage. The power transmission route of the 2nd gear is: the power generated by the motor 22 passes through the power output shaft 20 of the motor and the sixth gear 18, and merges with the power generated by the 2nd gear of the engine drive mode at the planet carrier 12, and then passes through the planet carrier 12, the eighth gear 18 and the planet carrier 12. The gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27 transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the third gear command is received, it controls the first clutch 4 to be engaged, the second clutch 5 to be disengaged, the third clutch 23 to be engaged, and the brake 13 to be engaged. The power transmission route of the 3rd gear is: the power generated by the motor 22 passes through the power output shaft 20 of the motor and the sixth gear 18, and is merged with the power generated by the 3rd gear of the engine drive mode at the planet carrier 12, and then passes through the planet carrier 12, the eighth gear 18 and the planet carrier 12. The gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27 transmit the power to the drive shaft through the differential 28.

In this working mode, when the control device determines that the 4th gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, and the third clutch 23 to engage. At this time, the planet carrier 12 and the sun gear 9 are fixed, and the planetary gear system 8 gear ratio is 1, brake 13 is disengaged. The power transmission route of the 4th gear is: the power generated by the motor 22 passes through the power output shaft 20 of the motor and the sixth gear 18, and is merged with the power generated by the 4th gear of the engine drive mode at the planet carrier 12, and then passes through the planet carrier 12, the eighth gear 18 and the planet carrier 12. The gear 24, the power output shaft 25, the ninth gear 26, and the differential gear 27 transmit the power to the drive shaft through the differential 28.

In the driving power generation working mode, the control device receives the driving power generation working mode instruction and controls the engine 1 to provide power while driving the motor 22 to generate electricity.

In this working mode, it is first determined whether the synchronizer 21 is engaged with the sixth gear 18 or the seventh gear 19. When the synchronizer 21 is engaged with the seventh gear 19, the received gear command is continued to be determined.

In this working mode, when the control device determines that the first gear command is received, it controls the first clutch 4 to engage, the second clutch 5 to disengage, the third clutch 23 to disengage, and the brake 13 to engage. The power transmission route of the 1st gear is: while the power generated by the engine 1 is transmitted to the drive shaft through the power transmission route of the 1st gear of the engine drive mode, it passes through the intermediate shaft 14, the fourth gear 16, the seventh gear 19, and the power of the motor. The output shaft 20 is transmitted to the motor 22 to generate electricity.

In this working mode, when the control device determines that the second gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, the third clutch 23 to disengage, and the brake 13 to engage. The power transmission route of the 2nd gear is: the power generated by the engine 1 is transmitted to the drive shaft through the power transmission route of the 2nd gear of the engine drive mode, and at the same time, it passes through the intermediate shaft 14, the fourth gear 16, the seventh gear 19, and the power of the motor. The output shaft 20 is transmitted to the motor 22 to generate electricity.

In this working mode, when the control device determines that the third gear command is received, it controls the first clutch 4 to be engaged, the second clutch 5 to be disengaged, the third clutch 23 to be engaged, and the brake 13 to be engaged. The power transmission route of the 3rd gear is: the power generated by the engine 1 is transmitted to the drive shaft through the power transmission route of the 3rd gear of the engine drive mode, and at the same time, it passes through the intermediate shaft 14, the fourth gear 16, the seventh gear 19, and the power of the motor. The output shaft 20 is transmitted to the motor 22 to generate electricity.

In this working mode, when the control device determines that the 4th gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, and the third clutch 23 to engage. At this time, the planet carrier 12 and the sun gear 9 are fixed, and the planetary gear system 8 gear ratio is 1, brake 13 is disengaged. The power transmission route of the 4th gear is: the power generated by the engine 1 is transmitted to the drive shaft through the power transmission route of the 4th gear of the engine drive mode, and at the same time, it passes through the intermediate shaft 14, the fourth gear 16, the seventh gear 19, and the power of the motor. The output shaft 20 is transmitted to the motor 22 to generate electricity.

When the synchronizer 21 is engaged with the sixth gear 18, the received gear command is continued to be judged.

In this working mode, when the control device determines that the first gear command is received, the first clutch 4 is engaged, the second clutch 5 is disengaged, the third clutch 23 is disengaged, and the brake 13 is engaged. The power transmission route of the 1st gear is: while the power generated by the engine 1 is transmitted to the drive shaft through the power transmission route of the 1st gear of the engine drive mode, it is also transmitted to the drive shaft through the planetary carrier 12, the sixth gear 18 and the power output shaft 20 of the motor The motor 22 generates electricity.

In this working mode, when the control device determines that the second gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, the third clutch 23 to disengage, and the brake 13 to engage. The power transmission route of the 2nd gear is: while the power generated by the engine 1 is transmitted to the drive shaft through the power transmission route of the 2nd gear of the engine drive mode, it is also transmitted to the drive shaft through the planetary carrier 12, the sixth gear 18, and the power output shaft 20 of the motor. The motor 22 generates electricity.

In this working mode, when the control device determines that the third gear command is received, it controls the first clutch 4 to be engaged, the second clutch 5 to be disengaged, the third clutch 23 to be engaged, and the brake 13 to be engaged. The power transmission route of the 3rd gear is: while the power generated by the engine 1 is transmitted to the drive shaft through the power transmission route of the 3rd gear of the engine drive mode, it is also transmitted to the drive shaft through the planetary carrier 12, the sixth gear 18, and the power output shaft 20 of the motor. The motor 22 generates electricity.

In this working mode, when the control device determines that the 4th gear command is received, it controls the first clutch 4 to disengage, the second clutch 5 to engage, and the third clutch 23 to engage. At this time, the planet carrier 12 and the sun gear 9 are fixed, and the planetary gear system 8 gear ratio is 1, brake 13 is disengaged. The power transmission route of the 4th gear is: while the power generated by the engine 1 is transmitted to the drive shaft through the power transmission route of the 4th gear of the engine drive mode, it is also transmitted to the drive shaft through the planetary carrier 12, the sixth gear 18, and the power output shaft 20 of the motor. The motor 22 generates electricity.

Table 1

Table 1 shows the shift element state logic diagram of the hybrid drive device according to an embodiment of the present invention, in which clutch I is the first clutch 4, clutch II is the second clutch 5, and clutch III is the third clutch 23. , the two-way synchronizer is the synchronizer 21, the gear VI is the sixth gear 18, and the gear VII is the seventh gear 19.

In one embodiment of the present invention, when the control command is a shift command, the step of controlling the hybrid drive device according to the working mode indicated by the control command includes: controlling the motor 22 to perform torque filling according to the shift command.

In this embodiment, when the engine 1 is shifting gears, the control device receives the gear shifting instruction and controls the motor 22 to perform torque filling to take over the engine 1 to drive the vehicle. At the same time, it waits for the speed of the engine 1 to be synchronized. When the new gear position corresponds to When the speeds at both ends of the synchronizer 21 are very close, push the synchronizer 21 into gear, use the synchronizing ring to slide the speeds to completely synchronize the speeds at both ends, and complete the gear shift, making the shift smooth, reducing the impact generated during the shift, and avoiding Power interruption improves driving comfort and safety, while reducing the technical requirements and control difficulty of the clutch mechanism 200 and brake 13. Consider using a relatively low-cost electromechanical structure, such as a simple single-plate clutch instead of a wet multi-plate clutch. disc clutch, reducing parts costs.

In one embodiment of the present invention, as shown in Figure 15, a computer-readable storage medium 800 is provided, on which a computer program 811 is stored. When the program is executed by a processor, any one of the above hybrid transmission devices is implemented. steps of the control method.

In one embodiment of the present invention, a hybrid power system is provided. The hybrid power system includes: the above-mentioned hybrid driving device, an engine 1 and a motor 22. One end of the hybrid driving device is connected to the engine 1, and the other end is connected to the motor. twenty two.

In this embodiment, in the hybrid system, the engine 1, the torsional reducer, and the hybrid drive device are connected to the power output shaft 20 of the engine. The hybrid drive device and the motor 22 are connected to the power output shaft 20 of the motor. The power system is used to transmit power corresponding to different gears in different working modes generated by the hybrid drive device.

In one embodiment of the present invention, a vehicle is provided, including the above-mentioned hybrid system.

In this embodiment, a vehicle is provided, which is equipped with the above-mentioned hybrid power system, and therefore has all the beneficial effects of the above-mentioned hybrid power system, which will not be described again here.

In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on that shown in the drawings. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; The terms "connection", "installation", "fixing", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or through an intermediate connection. Media are indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the description of the present invention, the terms "one embodiment," "some embodiments," "specific embodiments," etc., mean that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in the present invention. in at least one embodiment or example. In the present invention, schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (7)

1. A hybrid drive device for switching a drive mode of a vehicle in cooperation with an engine and/or an electric motor, comprising:

a transmission mechanism and a clutch mechanism, wherein,

the transmission mechanism is used for being connected with the power output shafts of the engine and the motor;

the clutch mechanism is connected with the transmission mechanism and used for changing the transmission ratio of the power transmission route of the transmission mechanism;

the transmission mechanism comprises:

the planetary gear train, the intermediate shaft and the transmission gear assembly,

the planetary gear train includes: a sun gear;

the sun gear and the transmission gear assembly are arranged on the intermediate shaft;

the transmission gear assembly is connected with the clutch mechanism;

the clutch mechanism includes:

a first clutch assembly, a second clutch assembly and a synchronizing assembly,

the first clutch assembly is used for being connected with a power output shaft of the engine;

The planetary gear train further includes: a planet carrier;

the second clutch assembly is connected to the planet carrier;

the synchronous component is used for being connected with a power output shaft of the motor;

the transmission gear assembly includes: a third gear, a fourth gear, and a fifth gear;

the fifth gear is movably connected with the planet carrier;

the first clutch assembly includes: the first gear is movably connected with the first clutch, and the first gear is meshed with the third gear; the second gear is movably connected with the second clutch, and the second gear is meshed with the fourth gear;

the second clutch assembly includes: a third clutch and an eighth gear, wherein one end of the third clutch is connected to the planet carrier, and the other end of the third clutch is connected to the eighth gear;

the synchronization assembly includes: the device comprises a synchronizer, a sixth gear and a seventh gear, wherein one end of the sixth gear is connected with the planet carrier, and the sixth gear is positioned at one end of the synchronizer; the seventh gear is meshed with the fourth gear, and the seventh gear is positioned at the other end of the synchronizer;

The hybrid drive device further includes:

the brake is provided with a plurality of brake pads,

the planetary gear train further includes:

the gear ring is provided with a gear ring,

the brake is connected to the gear ring;

the hybrid drive device further includes:

the power transmission device comprises a power transmission device,

the power transmission device includes:

a power output shaft, a ninth gear, a differential gear and a differential,

the ninth gear and the eighth gear are sequentially connected to the power output shaft;

the ninth gear is meshed with the differential gear;

the differential is connected to the differential gear.

2. A control method of a hybrid drive device for controlling the hybrid drive device according to claim 1, characterized by comprising:

receiving a control instruction;

and controlling the hybrid power driving device according to the working mode indicated by the control instruction, wherein the working mode is any one mode of a parking power generation mode, a motor driving mode, an engine driving mode, a hybrid parallel driving mode and a driving power generation mode.

3. The control method of a hybrid drive device according to claim 2, characterized in that the step of controlling the hybrid drive device according to the operation mode indicated by the control instruction includes:

And controlling the hybrid power driving device by changing the engagement or disengagement relation of the clutch mechanism and the transmission gear assembly according to the working mode control indicated by the control command.

4. A control method of a hybrid drive device according to claim 2 or 3, characterized in that: when the control command is a gear shift command, the step of controlling the hybrid power driving apparatus according to the operation mode indicated by the control command includes:

and controlling the motor to carry out torque filling according to the gear shifting instruction.

5. A computer readable storage medium, characterized in that a computer program is stored thereon, which program, when being executed by a processor, implements the steps of the method according to any of claims 2 to 4.

6. A hybrid system, comprising:

the hybrid drive device, the engine, and the motor according to claim 1, the hybrid drive device being connected to the engine and the motor, respectively.

7. A vehicle, characterized in that:

the vehicle comprising the hybrid system of claim 6.