Hybrid power system and vehicle with same

Abstract

The utility model discloses a hybrid power system and a vehicle with the hybrid power system, the hybrid power system comprises an engine, a transmission, a first motor and a second motor, the transmission comprises a first gear pair, a second gear pair, a gear shifting mechanism, a power input shaft and a power output shaft, the power input shaft and the power output shaft are in transmission connection through a first-gear gear pair or a second-gear gear pair; when the gear shifting mechanism is in a first state, the power input shaft and the power output shaft are in transmission connection through a first-gear gear pair, when the gear shifting mechanism is in a second state, the power input shaft and the power output shaft are in transmission connection through a second-gear gear pair, and the first motor is connected with the power input shaft. The second motor is connected with the power output shaft. According to the hybrid power system and the vehicle provided by the utility model, the vehicle can operate in various modes, the mileage of the vehicle can be effectively ensured, the engine and the second motor can provide kinetic energy at the same time, and the power performance of the vehicle is greatly improved, so that the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a hybrid power system and a vehicle with the same. Background Art

[0002] With the development of the economy, new energy vehicles have occupied an increasingly large share of the market, and hybrid technology has become a hot topic of research for various car companies. At the same time, improving the power performance of hybrid vehicles is one of the key issues currently addressed by car companies. Therefore, how to improve power performance is a technical issue that needs to be urgently resolved. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a hybrid power system that can enable a vehicle to operate in multiple modes, effectively ensure the vehicle's mileage, greatly improve the vehicle's power performance, and thus improve the user experience.

[0004] Another object of the present invention is to provide a vehicle comprising the hybrid power system.

[0005] According to a first aspect of the present invention, a hybrid power system includes: an engine; a transmission, the transmission includes a first gear gear pair, a second gear gear pair, a shifting mechanism, a power input shaft and a power output shaft, the power input shaft is connected to the engine, wherein the power input shaft and the power output shaft are connected by the first gear gear pair or the second gear gear pair, the shifting mechanism is configured to be switchable between a first state and a second state, when the shifting mechanism is in the first state, the power input shaft and the power output shaft are connected by the first gear gear pair, when the shifting mechanism is in the second state, the power input shaft and the power output shaft are connected by the second gear pair; a first motor, the first motor is connected to the power input shaft; a second motor, the second motor is connected to the power output shaft.

[0006] According to the hybrid power system of the embodiment of the utility model, by setting the first motor and the second motor, the vehicle can be operated in multiple modes, which can effectively ensure the vehicle's mileage. At the same time, the engine and the second motor can provide kinetic energy at the same time, greatly improving the vehicle's power performance, thereby improving the user experience.

[0007] According to some embodiments of the present utility model, the shift mechanism includes a first shift mechanism and a second shift mechanism, the first shift mechanism is connected to the first gear gear pair, and the second shift mechanism is connected to the second gear gear pair; wherein the first shift mechanism can be selectively arranged on one of the power input shaft and the power output shaft; and the second shift mechanism can be selectively arranged on one of the power output shaft and the power input shaft.

[0008] According to some embodiments of the present utility model, the shift mechanism also includes a third shift mechanism, which is connected to the second gear gear pair, and one of the third shift mechanism and the second shift mechanism is arranged on the power output shaft, and the other of the third shift mechanism and the second shift mechanism is arranged on the power input shaft.

[0009] According to some embodiments of the present utility model, the power output shaft includes a first sub-shaft and a second sub-shaft, the first sub-shaft is connected to the power input shaft via the first gear pair or the second gear pair, the second sub-shaft is connected to the second motor, and the second sub-shaft is connected to the wheels; the hybrid power system also includes: a first coupling device, the first coupling device is arranged between the first sub-shaft and the second sub-shaft.

[0010] According to some embodiments of the present utility model, the hybrid power system also includes: a first transmission gear pair, the first transmission gear pair includes a first main transmission wheel and a first slave transmission wheel meshing with each other, the first main transmission wheel is arranged on the power input shaft, and the first slave transmission wheel is connected to the first motor; a second transmission gear pair, the second transmission gear pair includes a second main transmission wheel and a second slave transmission wheel meshing with each other, the second main transmission wheel is connected to the output shaft of the second motor, and the second slave transmission wheel is arranged on the power output shaft.

[0011] According to some embodiments of the present utility model, the power output shaft includes an intermediate shaft and a power output sub-shaft, the intermediate shaft is located between the power input shaft and the power output sub-shaft, the power input shaft is connected to the intermediate shaft through the shifting mechanism, the power input shaft and the intermediate shaft are transmission-connected through the first gear gear pair or the second gear gear pair, the intermediate shaft and the power output sub-shaft are connected through a transmission mechanism, the power output sub-shaft is suitable for outputting power to the wheels, and the second motor is connected to the power output sub-shaft; wherein, the first shifting mechanism can be selectively arranged on one of the intermediate shaft and the power input shaft; the second shifting mechanism can be selectively arranged on one of the intermediate shaft and the power input shaft.

[0012] According to some embodiments of the present utility model, the intermediate shaft includes a third sub-shaft and a fourth sub-shaft, the third sub-shaft is connected to the power input shaft via the first gear pair or the second gear pair, and the fourth sub-shaft is connected to the power output sub-shaft via a transmission mechanism; the hybrid power system also includes: a second coupling device, which is arranged between the third sub-shaft and the fourth sub-shaft.

[0013] According to some embodiments of the utility model, the transmission mechanism includes a fourth main transmission wheel and a fourth slave transmission wheel meshing with each other, the fourth main transmission gear is arranged on the intermediate shaft, and the fourth slave transmission gear is arranged on the power output sub-shaft; the hybrid power system also includes: a third coupling device, the fourth main transmission gear is connected to the intermediate shaft through the third coupling device; or the fourth slave transmission gear is connected to the power output sub-shaft through the third coupling device.

[0014] According to some embodiments of the utility model, the third coupling device is a one-way clutch or a multi-mode clutch, wherein the third coupling device is arranged on the intermediate shaft, the active end of the third coupling device is connected to the intermediate shaft, and the driven end of the third coupling device is connected to the fourth main drive wheel; or the third coupling device is arranged on the power output sub-shaft, the active end of the third coupling device is connected to the fourth slave drive wheel, and the driven end of the third coupling device is connected to the power output sub-shaft.

[0015] According to some embodiments of the present utility model, the hybrid power system further includes: a first driving wheel, the first driving wheel is arranged on the power output shaft; and a differential, the differential having a first driven wheel, the first driven wheel meshing with the first driving wheel.

[0016] According to some embodiments of the present invention, the first driving wheel and the first driven wheel are both bevel gears, and the central axis of the first driving wheel is perpendicular to the central axis of the first driven wheel.

[0017] According to some embodiments of the present invention, the shift mechanism includes one or more of a synchronizer, a dog clutch, a one-way clutch or a multi-mode clutch.

[0018] According to some embodiments of the present utility model, the shift mechanism includes a one-way clutch or a multi-mode clutch, and the shift mechanism is arranged on the power input shaft, the active end of the shift mechanism is connected to the power input shaft, and the other end of the shift mechanism is connected to the first gear pair or the second gear pair; or the shift mechanism includes a one-way clutch or a multi-mode clutch, and the shift mechanism is arranged on the power output shaft, the active end of the shift mechanism is connected to the first gear pair or the second gear pair, and the other end of the shift mechanism is connected to the power output shaft.

[0019] A vehicle according to an embodiment of the second aspect of the utility model comprises a hybrid power system according to an embodiment of the first aspect of the utility model.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a schematic diagram of a hybrid power system according to a first embodiment of the utility model;

[0023] Figure 2 is a schematic diagram of a hybrid power system according to a second embodiment of the utility model;

[0024] Figure 3 is a schematic diagram of a hybrid power system according to a third embodiment of the utility model;

[0025] Figure 4 is a schematic diagram of a hybrid power system according to a fourth embodiment of the utility model;

[0026] Figure 5 is a schematic diagram of a hybrid power system according to a fifth embodiment of the utility model;

[0027] Figure 6 is a schematic diagram of a hybrid power system according to a sixth embodiment of the utility model;

[0028] Figure 7 is a schematic diagram of a hybrid power system according to a seventh embodiment of the utility model;

[0029] Figure 8 is a schematic diagram of a hybrid power system according to an eighth embodiment of the present utility model;

[0030] Fig. 9is a schematic diagram of a hybrid power system according to a ninth embodiment of the present utility model;

[0031] Fig.10 is a schematic diagram of a hybrid power system according to a tenth embodiment of the present utility model;

[0032] Fig.11 is a schematic diagram of a hybrid power system according to an eleventh embodiment of the present utility model;

[0033] Fig.12 is a schematic diagram of a hybrid power system according to a twelfth embodiment of the present utility model;

[0034] Fig.13 is a schematic diagram of a hybrid power system according to a thirteenth embodiment of the present utility model;

[0035] Fig.14 is a schematic diagram of a hybrid power system according to a fourteenth embodiment of the present utility model;

[0036] Fig.15 is a schematic diagram of a hybrid power system according to a fifteenth embodiment of the present utility model;

[0037] Fig.16 It is a schematic diagram of a hybrid power system according to the sixteenth embodiment of the utility model.

[0038] Reference numerals:

[0039] 100: Hybrid powertrain;

[0040] 1: Engine; 2: Transmission: 21: Second gear pair; 211: Second gear driving wheel; 212: Second gear driven wheel; 22: First gear pair; 221: First gear driving wheel; 222: First gear driven wheel; 23: Shift mechanism; 231: First shift mechanism; 232: Second shift mechanism; 233: Third shift mechanism; 3: First motor; 4: Second motor; 5: Power output shaft; 51: Intermediate shaft; 511: Third sub-shaft; 512: Fourth sub-shaft; 52: Power output sub-shaft; 53: First sub-shaft; 54: Fourth sub-shaft Shaft; 6: power input shaft; 7: first coupling device; 8: first transmission gear pair; 81: first main transmission wheel; 82: first slave transmission wheel; 9: second transmission gear pair; 91: second main transmission wheel; 92: second slave transmission wheel; 10: third transmission gear pair; 101: third main transmission wheel; 102: third slave transmission wheel; 11: transmission mechanism; 111: fourth main transmission wheel; 112: fourth slave transmission wheel; 12: second coupling device; 13: third coupling device; 14: first driving wheel; 15: differential; 151: first driven wheel. DETAILED DESCRIPTION

[0041] Reference below Figure 1-Figure 16 A hybrid power system 100 according to an embodiment of the first aspect of the present invention is described, wherein the hybrid power system 100 is applied to a vehicle as an example for illustration.

[0042] like Figure 1-Figure 16 As shown, the hybrid power system 100 according to the first embodiment of the utility model includes: an engine 1, a transmission 2, a first motor 3 and a second motor 4.

[0043] Specifically, the transmission 2 includes a first gear pair 22, a second gear pair 21, a shift mechanism 23, a power input shaft 6 and a power output shaft 5. The power input shaft 6 is connected to the engine 1, wherein the power input shaft 6 and the power output shaft 5 are connected by transmission through the first gear pair 22 or the second gear pair 21. The shift mechanism 23 is configured to be switchable between a first state and a second state. When the shift mechanism 23 is in the first state, the power input shaft 6 and the power output shaft 5 are connected by transmission through the first gear pair 22. When the shift mechanism 23 is in the second state, the power input shaft 6 and the power output shaft 5 are connected by transmission through the second gear pair 21. The first motor 3 is connected to the power input shaft 6, and the second motor 4 is connected to the power output shaft 5.

[0044] For example, in Figure 1-Figure 16 In the example, the engine 1 is located on one side of the transmission 2, and the power input shaft 6 of the transmission 2 is connected to the output shaft of the engine 1. The engine 1 provides power for the operation of the vehicle. The transmission 2 is used to change the speed and torque from the engine 1 and transmit them to the wheels of the vehicle so that the vehicle can travel at different speeds. The first motor 3 and the second motor 4 are both located on the other side of the transmission 2. The second motor 4 can be a drive motor used to drive and provide kinetic energy so that the vehicle can run using electrical energy.

[0045] Among them, only the engine 1 can provide kinetic energy to the wheels, so that the vehicle runs in the direct drive mode of the engine 1; or, only the second motor 4 can provide kinetic energy to the wheels, so that the vehicle runs in the pure electric mode; or, the engine 1 and the second motor 4 can jointly provide kinetic energy to the wheels, so that the vehicle runs in the hybrid mode; or, the engine 1 provides part of the kinetic energy to the wheels, and the remaining kinetic energy enables the first motor 3 to generate electricity and convert it into electrical energy, so that the vehicle runs in the direct drive + power generation mode of the engine 1; or, the second motor 4 provides part of the kinetic energy to the wheels, and the remaining kinetic energy enables the first motor 3 to generate electricity and convert it into electrical energy, so that the vehicle runs in the direct drive + power generation mode of the second motor 4; or, the engine 1 and the second motor 4 jointly provide part of the kinetic energy to the wheels, and the remaining kinetic energy enables the first motor 3 to generate electricity and convert it into electrical energy, so that the vehicle runs in the hybrid + power generation mode; or, the excess kinetic energy in the wheels can be transferred to the second motor 4 so that the vehicle runs in the feedback mode.

[0046] Specifically, Figure 1-Figure 16As shown, the engine 1 and the first motor 3 are both connected to the power input shaft 6, and the second motor 4 is connected to the power output shaft 5. The second gear pair 21 includes a second gear driving wheel 211 and a second gear driven wheel 212 meshing with each other, and the first gear pair 22 includes a first gear driving wheel 221 and a first gear driven wheel 222 meshing with each other. The second gear driving wheel 211 and the first gear driving wheel 221 are both arranged on the power input shaft 6, and the second gear driven wheel 212 and the first gear driven wheel 222 are both arranged on the power output shaft 5. The shift mechanism 23 is located between the second gear pair 21 and the first gear pair 22. When the shift mechanism 23 is engaged with the first gear pair 22, the first gear pair 22 is in the first state, and the power can be transmitted to the wheels via the first gear pair 22; when the shift mechanism 23 is engaged with the second gear pair 21, the second gear pair 21 is in the second state, and the power can be transmitted to the wheels via the second gear pair 21. Since the transmission ratios of the second gear pair 21 and the first gear pair 22 are different, that is, the power transmitted to the vehicle is different, the vehicle can run in different gears, effectively ensuring the power of the vehicle.

[0047] According to the hybrid power system 100 of the embodiment of the utility model, by providing the first motor 3 and the second motor 4, the vehicle can be operated in multiple modes, which can effectively ensure the vehicle's mileage. At the same time, the engine 1 and the second motor 4 can provide kinetic energy at the same time, which greatly improves the vehicle's power performance, thereby improving the user experience.

[0048] According to some embodiments of the present utility model, the shift mechanism 23 includes a first shift mechanism 231 and a second shift mechanism 232. The first shift mechanism 231 is connected to the first gear gear pair 22. When the first shift mechanism 231 is engaged, the power of the power input shaft 6 can be transmitted to the power output shaft 5 via the first gear gear pair 22. The second shift mechanism 232 is connected to the second gear gear pair 21. When the second shift mechanism 232 is engaged, the power of the power input shaft 6 can be transmitted to the power output shaft 5 via the second gear gear pair 21.

[0049] The first shift mechanism 231 can be selectively arranged on one of the power input shaft 6 and the power output shaft 5; the second shift mechanism 232 can be selectively arranged on one of the power input shaft 6 and the power output shaft 5. In other words, the first shift mechanism 231 and the second shift mechanism 232 are both arranged on the power output shaft 5 or the power input shaft 6; or the first shift mechanism 231 and the second shift mechanism 232 are respectively arranged on the power output shaft 5 and the power input shaft 6.

[0050] like Figure 1 and Fig. 9As shown, the second gear driving wheel 211 can be idling on the power input shaft 6, and the second gear shifting mechanism 232 is arranged on the power input shaft 6 and connected to the second gear driving wheel 211. At this time, when the second gear shifting mechanism 232 is engaged with the power input shaft 6, the kinetic energy of the power input shaft 6 can be transmitted to the power output shaft 5 via the second gear driving wheel 211 and the second gear driven wheel 212; and / or, the first gear driving wheel 221 can be idling on the power input shaft 6, and the first gear shifting mechanism 231 is arranged on the power input shaft 6 and connected to the first gear driving wheel 221. At this time, when the first gear shifting mechanism 231 is engaged with the power input shaft 6, the kinetic energy of the power input shaft 6 can be transmitted to the power output shaft 5 via the first gear driving wheel 221 and the first gear driven wheel 222.

[0051] like Figure 2 and Fig.10 As shown, the second gear driven wheel 212 can be idling on the power output shaft 5, and the second gear shifting mechanism 232 is arranged on the power output shaft 5 and connected to the second gear driven wheel 212. At this time, when the second gear shifting mechanism 232 is engaged with the power output shaft 5, the kinetic energy of the power input shaft 6 can be transmitted to the power output shaft 5 via the second gear driving wheel 211 and the second gear driven wheel 212; and / or, the first gear driven wheel 222 can be idling on the power output shaft 5, and the first gear shifting mechanism 231 is arranged on the power output shaft 5 and connected to the first gear driven wheel 222. At this time, when the first gear shifting mechanism 231 is engaged with the power output shaft 5, the kinetic energy of the power input shaft 6 can be transmitted to the power output shaft 5 via the first gear driving wheel 221 and the first gear driven wheel 222.

[0052] In this way, when the first shift mechanism 231 is engaged with the power input shaft 6 or the power output shaft 5, the vehicle can operate in the engine 1 direct drive first gear mode, hybrid first gear mode, engine 1 direct drive first gear + power generation mode or hybrid first gear + power generation mode; when the second shift mechanism 232 is engaged with the power input shaft 6 or the power output shaft 5, the vehicle can operate in the engine 1 direct drive second gear mode, hybrid second gear mode, engine 1 direct drive second gear + power generation mode, pure electric + power generation mode or hybrid second gear + power generation mode; when both the first shift mechanism 231 and the second shift mechanism 232 are not engaged, the vehicle operates in pure electric mode or feedback mode. In this way, it is ensured that the vehicle can operate in different gears, effectively ensuring the power of the vehicle.

[0053] Furthermore, if Figure 3 and Figure 4As shown, the shift mechanism 23 further includes a third shift mechanism 233, the third shift mechanism 233 is connected to the second gear pair 21, one of the third shift mechanism 233 and the second shift mechanism 232 is arranged on the power output shaft 5, and the other of the third shift mechanism 233 and the second shift mechanism 232 is arranged on the power input shaft 6. For example, the second gear driving wheel 211 is idle on the power input shaft 6, the second shift mechanism 232 is connected to the second gear driving wheel 211, the second gear driven wheel 212 is idle on the power output shaft 5, and the third shift mechanism 233 is connected to the second gear driven wheel 212. Alternatively, the third shift mechanism 233 can be arranged on the power input shaft 6 and connected to the second gear driving wheel 211, and the second shift mechanism 232 can also be arranged on the power output shaft 5 and connected to the second gear driven wheel 212.

[0054] In this way, when the first shift mechanism 231 is engaged with the power input shaft 6, the vehicle can operate in the engine 1 direct drive first gear mode, hybrid first gear mode, engine 1 direct drive first gear + power generation mode or hybrid first gear + power generation mode; when the second shift mechanism 232 is engaged with the power input shaft 6 or the power output shaft 5, and the third shift mechanism 233 is engaged with the power output shaft 5, the vehicle can operate in the engine 1 direct drive second gear mode, hybrid second gear mode, engine 1 direct drive second gear + power generation mode, pure electric + power generation mode or hybrid second gear + power generation mode; when the first shift mechanism 231, the second shift mechanism 232 and the third shift mechanism 233 are not engaged, the vehicle operates in the pure electric mode or the feedback mode. In this way, it is ensured that the vehicle can operate in different gears, and the power of the vehicle is effectively guaranteed.

[0055] According to some embodiments of the present invention, Figure 5-Figure 8 As shown, the power output shaft 5 includes a first sub-shaft 53 and a second sub-shaft 54, the first sub-shaft 53 is connected to the power input shaft 6 through the first gear pair 22 or the second gear pair 21, the second sub-shaft 54 ​​is connected to the second motor 4, and the second sub-shaft is connected to the wheels. The hybrid system 100 also includes a first coupling device 7, which is arranged between the first sub-shaft 53 and the second sub-shaft 54.

[0056] In this way, the first coupling device 7 is arranged on the power output shaft 5, and the first coupling device 7 is located at the second gear pair 21 and connected to the second motor 4. In other words, the connection and disconnection of the transmission 2 and the second motor 4 are realized through the first coupling device 7. When the first coupling device 7 is in the coupled state, the first sub-shaft 53 and the second sub-shaft 54 ​​are in the engaged state, and the transmission 2 is connected to the second motor 4. At this time, the first motor 3 can provide electrical energy to the second motor 4, and the power of the second motor 4 and the power of the engine 1 can be transmitted to the wheels; when the first coupling device 7 is in the decoupled state, the first sub-shaft 53 and the second sub-shaft 54 ​​are in the disconnected state, so that the transmission 2 is disconnected from the second motor 4, and the vehicle runs only through the kinetic energy provided by the second motor 4.

[0057] like Figure 5 and Figure 6 As shown, the transmission 2 includes a first shift mechanism 231 and a second shift mechanism 232, and the first coupling device 7 is arranged on the power output shaft 5, and the first coupling device 7 is located on the side of the second gear pair 21 away from the first gear pair 22. In this way, when the first coupling device 7 is in the coupling state, the first shift mechanism 231 is engaged with the power input shaft 6 or the power output shaft 5, the vehicle can be operated in the engine 1 direct drive first gear mode, hybrid first gear mode, engine 1 direct drive first gear + power generation mode or hybrid first gear + power generation mode; when the first coupling device 7 is in the coupling state, the second shift mechanism 232 is engaged with the power input shaft 6 or the power output shaft 5, the vehicle can be operated in the engine 1 direct drive second gear mode, hybrid second gear mode, engine 1 direct drive second gear + power generation mode, pure electric + power generation mode or hybrid second gear + power generation mode; when the first coupling device 7 is in the decoupling state, the vehicle is operated in the pure electric mode or feedback mode. In this way, it is ensured that the vehicle can be operated in different gears, and the power of the vehicle is effectively guaranteed.

[0058] like Figure 7 and Figure 8 As shown, the transmission 2 includes a first shift mechanism 231 , a second shift mechanism 232 and a third shift mechanism 233 , the first coupling device 7 is arranged on the power output shaft 5 , and the first coupling device 7 is located on the side of the second gear pair 21 away from the first gear pair 22 . In this way, when the first coupling device 7 is in the coupled state, the first shift mechanism 231 is engaged with the power input shaft 6, the vehicle can operate in the engine 1 direct drive first gear mode, hybrid first gear mode, engine 1 direct drive first gear + power generation mode or hybrid first gear + power generation mode; when the first coupling device 7 is in the coupled state, the second shift mechanism 232 is engaged with the power input shaft 6 or the power output shaft 5, and the third shift mechanism 233 is engaged with the power output shaft 5, the vehicle can operate in the engine 1 direct drive second gear mode, hybrid second gear mode, engine 1 direct drive second gear + power generation mode, pure electric + power generation mode or hybrid second gear + power generation mode; when the first coupling device 7 is in the decoupled state, the first shift mechanism 231, the second shift mechanism 232 and the third shift mechanism 233 are not engaged, the vehicle operates in the pure electric mode or the feedback mode. In this way, it is ensured that the vehicle can operate in different gears, and the power of the vehicle is effectively guaranteed.

[0059] According to some specific embodiments of the present invention, Figure 1-Figure 16The hybrid system 100 further includes a first transmission gear pair 8 and a second transmission gear pair 9. The first transmission gear pair 8 includes a first main transmission wheel 81 and a first secondary transmission wheel 82 meshing with each other. The first main transmission wheel 81 is arranged on the power input shaft 6. The first secondary transmission wheel 82 is connected to the output shaft of the first motor 3. The first transmission gear pair 8 is used to ensure that the kinetic energy on the power input shaft 6 can be transmitted to the first motor 3, so that the first motor 3 converts the kinetic energy into electrical energy. The second transmission gear pair 9 includes a second main transmission wheel 91 and a second secondary transmission wheel 92 meshing with each other. The second main transmission wheel 91 is connected to the output shaft of the second motor 4. The second secondary transmission wheel 92 is arranged on the power output shaft 5, so that the electrical energy of the second motor 4 is converted into kinetic energy and transmitted to the power output shaft 5 through the second transmission gear pair 9, and then transmitted to the wheels through the power output shaft 5, so that the vehicle can run in pure electric mode.

[0060] In some optional embodiments, such as Figure 1-Figure 8 As shown, the hybrid system 100 further includes a third transmission gear pair 10, the third transmission gear pair 10 includes a third main transmission wheel 101 and a third slave transmission wheel 102 meshing with each other, the third main transmission wheel 101 is arranged on the power output shaft 5, and the third main transmission wheel 101 is located between the second transmission gear pair 9 and the transmission 2. The third slave transmission wheel 102 is connected to the wheel through the differential 15. Therefore, it can be ensured that the kinetic energy on the power output shaft 5 is transmitted to the wheel through the third transmission gear pair 10 and the differential 15, so that the vehicle can run normally.

[0061] According to some embodiments of the present invention, referring to Figure 9-Figure 16 The power output shaft 5 includes an intermediate shaft 51 and a power output sub-shaft 52. The intermediate shaft 51 is located between the power input shaft 6 and the power output sub-shaft 5. The power input shaft 6 is connected to the intermediate shaft 51 through a shift mechanism 23. The power input shaft 6 and the intermediate shaft 51 are connected through a first gear gear pair 22 or a second gear gear pair 21. The intermediate shaft 51 and the power output sub-shaft 52 are connected through a transmission mechanism 11. The power output sub-shaft 52 is suitable for outputting power to wheels. The second motor 4 is connected to the power output sub-shaft 52.

[0062] The first shift mechanism 231 may be selectively arranged on one of the intermediate shaft 51 and the power input shaft 6; the second shift mechanism 232 may be selectively arranged on one of the intermediate shaft 51 and the power input shaft 6. In other words, the first shift mechanism 231 and the second shift mechanism 232 are both arranged on the intermediate shaft 51 or the power input shaft 6; or the first shift mechanism 231 and the second shift mechanism 232 are respectively arranged on the intermediate shaft 51 and the power input shaft 6.

[0063] like Figure 9-Figure 16As shown, the intermediate shaft 51, the power output sub-shaft 52 and the power input shaft 6 are parallel, and the intermediate shaft 51 is located between the power input shaft 6 and the power output sub-shaft 52. The transmission mechanism 11 is located between the transmission 2 and the second motor 4. Therefore, the kinetic energy on the intermediate shaft 51 can be transmitted to the power output sub-shaft 52 through the transmission mechanism 11, so that the kinetic energy can be transmitted to the wheels to ensure the normal operation of the vehicle.

[0064] Further, the intermediate shaft 51 includes a third sub-shaft 511 and a fourth sub-shaft 512, the third sub-shaft 511 is connected to the power input shaft 6 through the first gear pair 22 or the second gear pair 21, and the fourth sub-shaft 512 is connected to the power output sub-shaft 512 through the transmission mechanism 11. The hybrid power system 100 also includes a second coupling device 12, which is arranged between the third sub-shaft 511 and the fourth sub-shaft 512. Among them, the fourth main transmission wheel 111 of the transmission mechanism 11 is fixedly connected to the intermediate shaft 51, and the second coupling device 12 is located between the fourth main transmission wheel 111 and the second gear pair 21 (such as Fig.11 , Fig.12 , Fig.15 and Fig.16 shown).

[0065] like Figure 11-Figure 14 As shown, when the second coupling device 12 is in the decoupling state, the third sub-shaft 511 and the fourth sub-shaft 512 are in the disconnected state, so that the intermediate shaft 51 is disconnected from the transmission mechanism 11, so that the kinetic energy transmission between the intermediate shaft 51 and the power output sub-shaft 52 is disconnected, and the vehicle operates in the pure electric mode or the feedback mode; when the second coupling device 12 is in the coupling state, the third sub-shaft 511 and the fourth sub-shaft 512 are in the engaged state, and the first shift mechanism 231 is engaged with the power input shaft 6 or the power output shaft 5, the vehicle can operate in the engine 1 direct drive first gear mode, the hybrid first gear mode, the engine 1 direct drive first gear + power generation mode or the hybrid first gear + power generation mode; when the second coupling device 12 is in the coupling state, the third sub-shaft 511 and the fourth sub-shaft 512 are in the engaged state, and the second shift mechanism 232 is engaged with the power input shaft 6 or the power output shaft 5, the vehicle can operate in the engine 1 direct drive second gear mode, the hybrid second gear mode, the engine 1 direct drive second gear + power generation mode, the pure electric + power generation mode or the hybrid second gear + power generation mode.

[0066] Furthermore, the transmission mechanism 11 includes a fourth main transmission wheel 111 and a fourth slave transmission wheel 112 meshing with each other, the fourth main transmission wheel 111 is arranged on the intermediate shaft 51, and the fourth slave transmission wheel 112 is arranged on the power output sub-shaft 52. The hybrid power system 100 also includes a third coupling device 13, and the fourth main transmission wheel 111 is transmission-connected to the intermediate shaft 51 through the third coupling device 13, or the fourth slave transmission wheel 112 is transmission-connected to the power output sub-shaft 52 through the third coupling device 13. In other words, the third coupling device 13 can be arranged on the intermediate shaft 51, or the third coupling device 13 can also be arranged on the power output sub-shaft 52.

[0067] Specifically, the hybrid system 100 includes a second coupling device 12 and a third coupling device 13. The second coupling device 12 is disposed on the intermediate shaft 51 and is located between the transmission mechanism 11 and the second gear pair 21. The fourth main transmission wheel 111 of the transmission mechanism 11 is loosely sleeved on the intermediate shaft 51, and the third coupling device 13 is disposed in the fourth main transmission wheel 111 and is connected to the intermediate shaft 51 (such as Fig.15 Alternatively, the fourth slave transmission wheel 112 of the transmission mechanism 11 is sleeved on the power output sub-shaft 52, and the third coupling device 13 is disposed in the fourth slave transmission wheel 112 and is connected to the power output sub-shaft 52 (as shown in FIG. Fig.16 shown).

[0068] like Fig.15 and Fig.16 As shown, when at least one of the second coupling device 12 and the third coupling device 13 is in a decoupled state, the kinetic energy transmission between the intermediate shaft 51 and the power output sub-shaft 52 is disconnected, and the vehicle operates in a pure electric mode or a feedback mode; when the second coupling device 12 and the third coupling device 13 are both in a coupled state, when the first shift mechanism 231 is engaged with the power input shaft 6 or the power output shaft 5, the vehicle can operate in an engine 1 direct drive first gear mode, a hybrid first gear mode, an engine 1 direct drive first gear + power generation mode, or a hybrid first gear + power generation mode; when the second coupling device 12 and the third coupling device 13 are both in a coupled state, when the second shift mechanism 232 is engaged with the power input shaft 6 or the power output shaft 5, the vehicle can operate in an engine 1 direct drive second gear mode, a hybrid second gear mode, an engine 1 direct drive second gear + power generation mode, a pure electric + power generation mode, or a hybrid second gear + power generation mode.

[0069] Alternatively, the hybrid system 100 only includes the third coupling device 13, the fourth main transmission wheel 111 of the transmission mechanism 11 is loosely mounted on the intermediate shaft 51, and the third coupling device 13 is arranged in the fourth main transmission wheel 111 and connected to the intermediate shaft 51 (eg Fig.13Alternatively, the fourth slave transmission wheel 112 of the transmission mechanism 11 is sleeved on the power output sub-shaft 52, and the third coupling device 13 is disposed in the fourth slave transmission wheel 112 and is connected to the power output sub-shaft 52 (as shown in FIG. Fig.14 (shown)

[0070] Furthermore, the third coupling device 13 is a one-way clutch or a multi-mode clutch, wherein the third coupling device 13 is arranged on the intermediate shaft 51, the active end of the third coupling device 13 is connected to the intermediate shaft 51, and the driven end of the third coupling device 13 is connected to the fourth main transmission wheel 111 (such as Fig.13 and Fig.15 As shown), the power of the intermediate shaft 51 is transmitted to the fourth main transmission wheel 111 through the third coupling device 13, and then transmitted to the power output sub-shaft 52 through the fourth slave transmission wheel 112.

[0071] Of course, in other embodiments, the third coupling device 13 is disposed on the power output sub-shaft 52, the active end of the third coupling device 13 is connected to the fourth slave transmission wheel 112, and the driven end of the third coupling device 13 is connected to the power output sub-shaft 52 (such as Fig.14 and Fig.16 As shown), the fourth main transmission wheel 111 is conducive to transmitting power to the fourth slave transmission wheel 112, and the power of the fourth slave transmission wheel 112 is transmitted to the power output sub-shaft 52 via the third coupling device 13.

[0072] According to some embodiments of the present invention, Figure 1-Figure 8 As shown, the hybrid system 100 further includes a first driving wheel 14 and a differential 15, wherein the first driving wheel 14 is arranged on the power output shaft 5, and the differential 15 has a first driven wheel 151, which is meshed with the first driving wheel 14. In this arrangement, through the cooperation between the first driven wheel 151 and the first driving wheel 14, the kinetic energy on the power output shaft 5 can be transmitted to the differential 15, and then the kinetic energy is proportionally distributed to each wheel through the differential 15, so as to ensure that the vehicle can run smoothly.

[0073] Furthermore, if Figure 11-Figure 6 As shown, the first driving wheel 14 and the first driven wheel 151 are both bevel gears, and the central axis of the first driving wheel 14 is perpendicular to the central axis of the first driven wheel 151. Such an arrangement is conducive to changing the transmission direction of kinetic energy, that is, changing the power transmitted along the axial direction of the power output shaft 5 into the radial direction of the power output shaft 5.

[0074] In some optional embodiments, the shift mechanism 23 includes one or more of a synchronizer, a dog clutch, a one-way clutch, or a multi-mode clutch, but is not limited thereto. The multi-mode clutch has a free mode, a one-way clutch mode, and the like.

[0075] According to some embodiments of the present invention, the shift mechanism 23 includes a one-way clutch or a multi-mode clutch, and the shift mechanism 23 is arranged on the power input shaft 6, the active end of the shift mechanism 23 is connected to the power input shaft 6, and the other end of the shift mechanism 23 is connected to the first gear pair 22 or the second gear pair 21. For example, the first shift mechanism 231 is arranged on the power input shaft 6, and the first shift mechanism 231 is a one-way clutch (such as Figure 3 , Figure 5 , Figure 7 , Fig.11 , Fig.13 and Fig.15 as shown) or a multi-mode clutch (as Figure 1 and Fig. 9 As shown), the driving end of the first gear shifting mechanism 231 is connected to the power input shaft 6, and the other end of the first gear shifting mechanism 231 is connected to the first gear driving wheel 221, so that the power on the power input shaft 6 is transmitted to the first gear driving wheel 221 through the first gear shifting mechanism 231, and then transmitted to the power output shaft 5 through the first gear driving wheel 221 and the first gear driven wheel 222.

[0076] Alternatively, the second shift mechanism 233 includes a one-way clutch or a multi-mode clutch (eg Figure 4 As shown), the second gear shifting mechanism 232 is arranged on the power input shaft 6, the driving end of the second gear shifting mechanism 232 is connected to the power input shaft 6, and the other end of the second gear shifting mechanism 232 is connected to the second gear driving wheel 211, so that the power on the power input shaft 6 is transmitted to the second gear driving wheel 211 through the second gear shifting mechanism 232, and then transmitted to the power output shaft 5 through the second gear driving wheel 211 and the second gear driven wheel 212.

[0077] In other embodiments, the shift mechanism 23 includes a one-way clutch or a multi-mode clutch, and the shift mechanism 23 is disposed on the power output shaft 5, the active end of the shift mechanism 23 is connected to the first gear pair 22 or the second gear pair 21, and the other end of the shift mechanism 23 is connected to the power output shaft 5. For example, the first shift mechanism 231 is disposed on the power output shaft 5, and the first shift mechanism 231 is a one-way clutch (such as Figure 6 , Figure 8 , Fig.12 , Fig.14 and Fig.16 as shown) or a multi-mode clutch (as Figure 2 and Fig.10 As shown), the driving end of the first gear shifting mechanism 231 is connected to the first gear driven wheel 222, and the other end of the first gear shifting mechanism 231 is connected to the power output shaft 5, so that the power on the power input shaft 6 is transmitted to the first gear shifting mechanism 231 through the first gear driving wheel 221 and the first gear driven wheel 222, and then transmitted to the power output shaft 5 through the first gear shifting mechanism 231.

[0078] A vehicle (not shown) according to an embodiment of the second aspect of the utility model comprises a hybrid power system 100 according to an embodiment of the first aspect of the utility model.

[0079] According to the vehicle of the embodiment of the utility model, by adopting the hybrid power system 100, the experience of vehicle operation is increased, thereby improving the market competitiveness of the vehicle.

[0080] Other structures and operations of the vehicle according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0081] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 on the present invention.

[0082] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0084] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hybrid power system, characterized in that: include: engine; A transmission, the transmission comprising a first gear pair, a second gear pair, a shifting mechanism, a power input shaft and a power output shaft, the power input shaft being connected to the engine, wherein the power input shaft and the power output shaft are connected by transmission through the first gear pair or the second gear pair, the shifting mechanism being configured to be switchable between a first state and a second state, when the shifting mechanism is in the first state, the power input shaft and the power output shaft are connected by transmission through the first gear pair, and when the shifting mechanism is in the second state, the power input shaft and the power output shaft are connected by transmission through the second gear pair; a first motor connected to the power input shaft; A second motor is connected to the power output shaft.

2. The hybrid power system according to claim 1, characterized in that: The shift mechanism comprises a first shift mechanism and a second shift mechanism, the first shift mechanism is connected to the first gear pair, and the second shift mechanism is connected to the second gear pair; Wherein, the first shift mechanism can be selectively arranged on one of the power input shaft and the power output shaft; the second shift mechanism can be selectively arranged on one of the power input shaft and the power output shaft.

3. The hybrid power system according to claim 2, characterized in that: The shift mechanism also includes a third shift mechanism, which is connected to the second gear pair. One of the third shift mechanism and the second shift mechanism is arranged on the power output shaft, and the other of the third shift mechanism and the second shift mechanism is arranged on the power input shaft.

4. The hybrid power system according to claim 2, characterized in that: The power output shaft comprises a first sub-shaft and a second sub-shaft, the first sub-shaft is connected to the power input shaft via the first gear pair or the second gear pair, the second sub-shaft is connected to the second motor, and the second sub-shaft is connected to the wheels; The hybrid power system further comprises: A first coupling device is provided between the first sub-axis and the second sub-axis.

5. The hybrid power system according to claim 2, characterized in that: Also includes: a first transmission gear pair, the first transmission gear pair comprising a first main transmission wheel and a first slave transmission wheel meshing with each other, the first main transmission wheel being arranged on the power input shaft, and the first slave transmission wheel being connected to an output shaft of the first motor; The second transmission gear pair includes a second main transmission wheel and a second slave transmission wheel meshing with each other, the second main transmission wheel is connected to the output shaft of the second motor, and the second slave transmission wheel is arranged on the power output shaft.

6. The hybrid power system according to claim 5, characterized in that: The power output shaft comprises an intermediate shaft and a power output sub-shaft, wherein the intermediate shaft is located between the power input shaft and the power output sub-shaft, the power input shaft is connected to the intermediate shaft through the shift mechanism, the power input shaft and the intermediate shaft are transmission-connected through the first gear pair or the second gear pair, the intermediate shaft and the power output sub-shaft are connected through a transmission mechanism, the power output sub-shaft is suitable for outputting power to wheels, and the second motor is connected to the power output sub-shaft; Wherein, the first shift mechanism can be selectively arranged on one of the intermediate shaft and the power input shaft; the second shift mechanism can be selectively arranged on one of the intermediate shaft and the power input shaft.

7. The hybrid power system according to claim 6, characterized in that: The intermediate shaft comprises a third sub-shaft and a fourth sub-shaft, the third sub-shaft is connected to the power input shaft via the first gear pair or the second gear pair, and the fourth sub-shaft is connected to the power output sub-shaft via a transmission mechanism; The hybrid power system further comprises: A second coupling device is provided between the third sub-axis and the fourth sub-axis.

8. The hybrid power system according to claim 6, characterized in that: The transmission mechanism comprises a fourth main transmission wheel and a fourth slave transmission wheel meshing with each other, the fourth main transmission wheel is arranged on the intermediate shaft, and the fourth slave transmission gear is arranged on the power output sub-shaft; The hybrid power system further comprises: a third coupling device, the fourth main transmission wheel is drivingly connected to the intermediate shaft via the third coupling device; or The fourth slave transmission gear is drivingly connected to the power output sub-shaft through the third coupling device.

9. The hybrid power system according to claim 8, characterized in that: The third coupling device is a one-way clutch or a multi-mode clutch, Wherein, the third coupling device is arranged on the intermediate shaft, the driving end of the third coupling device is connected to the intermediate shaft, and the driven end of the third coupling device is connected to the fourth main drive wheel; or The third coupling device is arranged on the power output sub-shaft, the driving end of the third coupling device is connected to the fourth slave transmission wheel, and the driven end of the third coupling device is connected to the power output sub-shaft.

10. The hybrid power system according to any one of claims 1 to 9, characterized in that: Also includes: A first driving wheel, wherein the first driving wheel is arranged on the power output shaft; A differential has a first driven wheel, wherein the first driven wheel is meshed with the first driving wheel.

11. The hybrid power system according to claim 10, characterized in that: The first driving wheel and the first driven wheel are both bevel gears, and the central axis of the first driving wheel is perpendicular to the central axis of the first driven wheel.

12. The hybrid power system according to any one of claims 1 to 9, characterized in that: The shift mechanism includes one or more of a synchronizer, a dog clutch, a one-way clutch or a multi-mode clutch.

13. The hybrid power system according to claim 12, characterized in that: The shift mechanism includes a one-way clutch or a multi-mode clutch, and the shift mechanism is arranged on the power input shaft, the active end of the shift mechanism is connected to the power input shaft, and the other end of the shift mechanism is connected to the first gear pair or the second gear pair; or The shift mechanism includes a one-way clutch or a multi-mode clutch, and the shift mechanism is arranged on the power output shaft, the active end of the shift mechanism is connected to the first gear pair or the second gear pair, and the other end of the shift mechanism is connected to the power output shaft.

14. A vehicle, characterized in that: Comprising a hybrid power system according to any one of claims 1-13.

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