Hybrid power system, vehicle and control method of vehicle

Abstract

The invention provides a hybrid power system, a vehicle and a vehicle control method, relates to the technical field of vehicles, and aims to reduce the risk that the vehicle is out of control. The hybrid power system comprises a transmission assembly and an oil pump. The transmission assembly includes a housing including a liquid reservoir, a first bearing chamber, a second bearing chamber, a third bearing chamber, a fourth bearing chamber, and a fifth bearing chamber. The liquid storage cavity is used for storing lubricating oil, provided with a throttling hole and communicated with the first bearing chamber through the throttling hole, the first bearing chamber is used for installing a differential output shaft, the second bearing chamber is used for installing an engine input shaft, the third bearing chamber is used for installing an output shaft, and the fourth bearing chamber is used for installing a first motor input shaft. The fifth bearing chamber is used for mounting a second motor input shaft; the oil pump is arranged in the shell; oil driven by a gear ring of the differential output shaft is guided to one or more of the second bearing chamber, the third bearing chamber, the fourth bearing chamber and the fifth bearing chamber.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and in particular, to a hybrid power system, a vehicle, and a control method for a vehicle. Background Art

[0002] The transmission of a vehicle actively provides comprehensive lubrication through an oil pump, and at the same time realizes local splash lubrication through components such as gears. In a hybrid vehicle, the oil pump also needs to provide necessary cooling for the motor. In related technologies, in order to flexibly control the oil pump, new energy vehicles and hybrid vehicles use an electronic oil pump to provide lubrication for the vehicle. When the electronic oil pump fails, it may cause the transmission to overheat or even be damaged, thereby increasing the risk of vehicle out of control. Summary of the Invention

[0003] In order to solve the above technical problems, this application provides a hybrid power system, a vehicle, and a control method for a vehicle, which are used to reduce the risk of vehicle out of control.

[0004] In a first aspect, an embodiment of this application provides a hybrid power system. The hybrid power system includes: a transmission assembly and an oil pump. The transmission assembly includes a housing, and the housing includes a liquid storage cavity, a first bearing chamber, a second bearing chamber, a third bearing chamber, a fourth bearing chamber, and a fifth bearing chamber. The liquid storage cavity is used to store lubricating oil, the liquid storage cavity has a throttling hole, and the liquid storage cavity is communicated with the first bearing chamber through the throttling hole. The first bearing chamber is used to install a differential output shaft, the second bearing chamber is used to install an engine input shaft, the third bearing chamber is used to install an output shaft, the fourth bearing chamber is used to install a first motor input shaft, and the fifth bearing chamber is used to install a second motor input shaft; the oil pump is arranged in the housing; wherein, the oil guided by the gear ring of the differential output shaft is led to one or more of the second bearing chamber, the third bearing chamber, the fourth bearing chamber, and the fifth bearing chamber.

[0005] According to the hybrid power system of the embodiment of this application, by providing a liquid storage cavity, a first bearing chamber, a second bearing chamber, a third bearing chamber, and a fourth bearing chamber on the housing of the transmission assembly, when the vehicle is moving forward, the lubricating oil in the liquid storage cavity can flow into the first bearing chamber through the throttling hole, and the oil guided by the gear ring of the differential output shaft is led to one or more of the first bearing chamber, the second bearing chamber, the third bearing chamber, the fourth bearing chamber, and the fifth bearing chamber, so as to realize passive lubrication of the vehicle. Thus, when the oil pump fails, it can also lubricate and cool the rotating components in the transmission assembly, thereby avoiding overheating of the transmission assembly, enabling the hardware in the transmission to operate normally, and further being beneficial to reducing the risk of vehicle out of control.

[0006] In a possible implementation manner, the first bearing chamber has a first bearing hole, and a first guiding protrusion is provided in the first bearing chamber. The first guiding protrusion extends along the circumferential direction of the first bearing hole. The first guiding protrusion and the side wall of the first bearing chamber enclose a first guiding space. The gear ring of the differential output shaft is located in the first guiding space, and the first guiding space is communicated with both the liquid storage chamber and the third bearing chamber to guide the oil driven by the gear ring of the differential output shaft to the third bearing chamber.

[0007] In a possible implementation manner, a first guiding groove is further provided in the first bearing chamber. The first guiding groove is located on the side of the first bearing hole away from the liquid storage chamber. One end of the first guiding groove is communicated with the first guiding space, and the other end extends to the first bearing hole.

[0008] In a possible implementation manner, the housing has a second guiding groove. The second guiding groove is located on the side of the first guiding groove away from the first guiding protrusion. One end of the second guiding groove is communicated with the first guiding space, and the other end extends to the third bearing chamber.

[0009] In a possible implementation manner, the fifth bearing chamber is located on the side of the third bearing chamber away from the liquid storage chamber and is communicated with both the first bearing chamber and the third bearing chamber.

[0010] In a possible implementation manner, the housing has a second guiding space. The second guiding space is provided on the side of the second bearing chamber away from the liquid storage chamber. The first bearing chamber is communicated with the fourth bearing chamber through the second guiding space. The oil driven by the gear ring of the differential output shaft is guided to the fourth bearing chamber through the second guiding space.

[0011] In a possible implementation manner, a second guiding protrusion is provided in the housing. The second guiding protrusion is provided on the side of the second bearing chamber away from the liquid storage chamber. The second guiding protrusion extends from the third bearing chamber towards the fourth bearing chamber. The second guiding protrusion and the inner side wall of the housing enclose the second guiding space.

[0012] In a possible implementation manner, an open bearing is provided in the third bearing chamber. The extension line of the conical angle of the open bearing is within the extension line range of the rotation angle of the gear ring of the differential output shaft.

[0013] In a second aspect, the present application provides a vehicle, including the above-mentioned hybrid power system.

[0014] In a third aspect, the present application provides a control method for a vehicle. The control method for the vehicle includes: determining whether a fuel pump fails; if the fuel pump fails, controlling the fuel pump to stop rotating and causing the vehicle to operate with power restricted.

[0015] Among them, the technical effects brought by any one of the design manners in the second aspect and the third aspect can refer to the technical effects brought by different design manners in the first aspect, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the related art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the related art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of a transmission assembly provided for some embodiments of the present application;

[0019] Figure 2 Schematic diagram of a housing provided for some embodiments of the present application;

[0020] Figure 3 Schematic diagram of lubrication of the input shaft of the second motor provided for some embodiments of the present application;

[0021] Figure 4 Schematic diagram of output shaft lubrication provided for some embodiments of the present application.

[0022] Reference numerals:

[0023] 1. Transmission assembly; 11. Housing; 111. Liquid storage cavity; 1111. Throttle hole; 112. First bearing chamber; 1121. First bearing hole; 1122. First guiding protrusion; 1123. First diversion space; 1124. First guiding groove; 113. Second bearing chamber; 114. Third bearing chamber; 1141. Second guiding groove; 1142. Open-type bearing; 115. Fourth bearing chamber; 116. Fifth bearing chamber; 117. Second diversion space; 118. Second guiding protrusion;

[0024] 2. Input shaft of the first motor;

[0025] 3. Differential output shaft;

[0026] 4. Output shaft;

[0027] 5. Second motor input shaft;

[0028] 6. Engine input shaft. Detailed implementation manners

[0029] In order to more clearly understand the above-mentioned objects, features, and advantages of the present application, the solution of the present application will be further described below. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0030] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0031] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, "connected" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that they are connected to each other and the relative positional relationship after connection remains unchanged. In addition, the orientation terms mentioned in the embodiments of the present application, such as "inner", "outer", etc., are only with reference to the direction of the drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the embodiments of the present application.

[0032] In the description of the embodiments of the present application, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device including that element. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device including that element.

[0033] The transmission of a vehicle actively provides comprehensive lubrication through an oil pump, and at the same time realizes local splash lubrication through components such as gears. In a hybrid vehicle, the oil pump is also required to provide necessary cooling for the motor. In related technologies, in order to flexibly control the oil pump, new energy vehicles and hybrid vehicles use an electronic oil pump to provide lubrication for the vehicle. When the electronic oil pump fails, it may cause the transmission to overheat or even be damaged, thus increasing the risk of vehicle out of control.

[0034] To solve the above technical problems, the present application provides a hybrid power system, a vehicle and a control method for the vehicle.

[0035] The hybrid power system of the embodiments of the present application will be described below.

[0036] Please refer to Figure 1 and Figure 2 , Figure 1 which are schematic diagrams of a transmission assembly provided in some embodiments of the present application, Figure 2 and

[0037] which are schematic diagrams of a housing provided in some embodiments of the present application. The hybrid power system may include a transmission assembly 1 and an oil pump (not shown in the figure).

[0038] The transmission assembly 1 may include a housing 11. The housing 11 may include a liquid storage cavity 111, a first bearing chamber 112, a second bearing chamber 113, a third bearing chamber 114, a fourth bearing chamber 115 and a fifth bearing chamber 116. Among them, the liquid storage cavity 111 is used to store lubricating oil, the first bearing chamber 112 may be used to install the differential output shaft 3, the second bearing chamber 113 may be used to install the engine input shaft 6, the third bearing chamber 114 is used to install the output shaft 4, the fourth bearing chamber 115 may be used to install the first motor input shaft 2, and the fifth bearing chamber may be used to install the second motor input shaft 5.

[0039] Exemplarily, in the height direction of the housing 11, the liquid storage cavity 111 may be located at the bottom of the housing 11, and the space for storing lubricating oil at the bottom of the housing 11 forms the liquid storage cavity 111. Among them, a suction filter may be provided in the liquid storage cavity 111.

[0040] The liquid storage cavity 111 may have a throttling hole 1111. Among them, the liquid level of the lubricating oil stored in the liquid storage cavity 111 is higher than the throttling hole 1111, so that the lubricating oil can flow out from the throttling hole 1111.

[0041] Exemplarily, the throttling hole 1111 may be located at the connection between the bottom wall and the side wall of the liquid storage cavity 111.

[0042] If the first bearing chamber 112 is communicated with the liquid storage cavity 111 through the throttling hole 1111, the lubricating oil in the liquid storage cavity 111 can flow into the first bearing chamber 112 through the throttling hole 1111, and then components such as the differential output shaft 3 in the first bearing chamber 112 can be lubricated.

[0043] Exemplarily, the first bearing chamber 112 may be located on one side of the liquid storage cavity 111, and the third bearing chamber 114, the second bearing chamber 113 and the fourth bearing chamber 115 are located on one side of the first bearing chamber 112. Among them, the third bearing chamber 114, the second bearing chamber 113 and the fourth bearing chamber 115 and the liquid storage cavity 111 may all be located on the same side of the first bearing chamber 112. Such a setting can optimize the layout of the transmission assembly 1, thereby reducing the volume of the transmission assembly 1.

[0044] Exemplarily, the third bearing chamber 114, the second bearing chamber 113 and the fourth bearing chamber 115 may be arranged at intervals on one side of the first bearing chamber 112. The third bearing chamber 114 is located on the side close to the first bearing chamber 112 of the second bearing chamber 113 and is communicated with the first bearing chamber 112, and the fourth bearing chamber 115 is communicated with the first bearing chamber 112. Specifically, the second bearing chamber 113 is located between the third bearing chamber 114 and the fourth bearing chamber 115, and the fourth bearing chamber 115 is located on the side of the second bearing chamber 113 away from the differential output shaft 3. Since the third bearing chamber 114 is communicated with the first bearing chamber 112, the oil driven by the gear ring of the differential output shaft 3 can introduce the lubricating oil into the third bearing chamber 114 and the fourth bearing chamber 115, and then the components in the third bearing chamber 114 and the fourth bearing chamber 115 can be lubricated.

[0045] Exemplarily, the fifth bearing chamber 116 may be located on the side of the third bearing chamber 114 away from the liquid storage cavity 111 and is communicated with the first bearing chamber 112, and the oil driven by the gear ring of the differential output shaft 3 can introduce the lubricating oil into the fifth bearing chamber 116.

[0046] The oil pump is disposed within the transmission assembly 1 and can be used to lubricate the first motor input shaft 2 and the second motor input shaft 5. Specifically, the hybrid system may further include a clutch. When the oil pump operates normally, the motor of the oil pump is connected to the rotor of the lubricating oil pump through a transmission shaft, and then the lubricating oil can be delivered to the first motor input shaft 2, the second motor input shaft 5, and the clutch. Thus, by providing the oil pump, the vehicle can achieve active lubrication through the oil pump.

[0047] In the hybrid system according to an embodiment of the present application, by providing a liquid storage cavity 111, a first bearing chamber 112, a second bearing chamber 113, a third bearing chamber 114, and a fourth bearing chamber 115 on the housing 11 of the transmission assembly 1, when the vehicle travels forward, the lubricating oil in the liquid storage cavity 111 can flow into the first bearing chamber 112 through the throttle hole 1111, and the oil driven by the ring gear of the differential output shaft 3 is guided to one or more of the first bearing chamber 112, the second bearing chamber 113, the third bearing chamber 114, the fourth bearing chamber 115, and the fifth bearing chamber 116, thereby achieving passive lubrication of the vehicle. Thus, when the oil pump fails, the rotating components within the transmission assembly 1 can also be lubricated and cooled, thereby avoiding overheating of the transmission assembly 1, enabling the hardware within the transmission to operate normally, and further facilitating reducing the risk of vehicle out of control.

[0048] Please continue to refer to Figure 1 and Figure 2 , in some embodiments, the first bearing chamber 112 may have a first bearing hole 1121, and the differential output shaft 3 can be installed within the first bearing chamber 112 through the first bearing hole 1121.

[0049] A first guiding protrusion 1122 may be provided within the first bearing chamber 112. The first guiding protrusion 1122 extends along the circumferential direction of the first bearing hole 1121. The first guiding protrusion 1122 and the side wall of the first bearing chamber 112 enclose a first diversion space 1123, and the first diversion space 1123 is in communication with both the liquid storage cavity 111 and the third bearing chamber 114 to guide the oil driven by the ring gear of the differential output shaft 3 to the third bearing chamber 114. Specifically, one end of the first guiding protrusion 1122 can extend to the throttle hole 1111, and the other end can extend to the third bearing chamber 114. Then, the lubricating oil flowing out of the throttle hole 1111 can directly flow to the third bearing chamber 114 through the first diversion space 1123 under the rotation of the ring gear of the differential output shaft 3.

[0050] Thus, while lubricating the differential output shaft 3, the lubricating oil can also be introduced into the third bearing chamber 114 through the first diversion space 1123, thereby achieving lubrication of the components within the third bearing chamber 114, which is beneficial to reducing the manufacturing cost of the hybrid system and can also improve the safety of vehicle operation.

[0051] Please continue to refer to Figure 1 and Figure 2 In some embodiments, a first guiding groove 1124 is further provided in the first bearing chamber 112. The first guiding groove 1124 is located on a side of the first bearing hole 1121 away from the liquid storage chamber 111. One end of the first guiding groove 1124 communicates with the first diversion space 1123, and the other end extends to the first bearing hole 1121. Specifically, the first guiding groove 1124 and the liquid storage chamber 111 are located on opposite sides of the first bearing hole 1121, and the extending direction of the first guiding groove 1124 may be the same as the height direction of the transmission assembly 1. When the differential output shaft 3 rotates, the lubricating oil can flow to the first guiding groove 1124 through the first diversion space 1123, and the lubricating oil can flow along the first guiding groove 1124 to the first bearing hole 1121 by its own gravity, so as to lubricate the components at the first bearing hole 1121.

[0052] Thus, by providing the first guiding groove 1124, the components at the first bearing hole 1121 can be lubricated, so that the ability of the vehicle to achieve passive lubrication can be further improved, and further the risk of vehicle out of control can be reduced.

[0053] Please continue to refer to Figure 1 and Figure 2 In some embodiments, the housing 11 has a second guiding groove 1141. In the length direction of the housing 11, the second guiding groove 1141 is located on a side of the first guiding groove 1124 away from the first guiding protrusion 1122. One end of the second guiding groove 1141 communicates with the first diversion space 1123, and the other end extends to the third bearing chamber 114. Thus, the gear ring of the differential output shaft 3 can drive the lubricating oil to flow to the first guiding groove 1124 and the second guiding groove 1141 through the first diversion space 1123. Through the guiding action of the second guiding groove 1141, the lubricating oil can flow into the third bearing chamber 114, so as to lubricate the components in the third bearing chamber 114, and further facilitate improving the running safety of the vehicle.

[0054] Please continue to refer to Figure 1 - Figure 3 , Figure 3Schematic diagram of lubricating the input shaft of the second motor provided by some embodiments of the present application. In some embodiments, the fifth bearing chamber 116 may be located on the side of the third bearing chamber 114 away from the liquid storage chamber 111 and communicate with both the first bearing chamber 112 and the third bearing chamber 114. Specifically, the input shaft 5 of the second motor may be disposed at the fifth bearing chamber 116. Lubrication of the input shaft 5 of the second motor is achieved through an oil pump. When actively lubricating the input shaft 5 of the second motor, lubricating oil can be introduced from one side of the housing, enter the rotor shaft, and then be diverted to different parts that need lubrication. In the passive lubrication state, the output shaft 4 disposed in the third bearing chamber 114 can sprinkle the lubricating oil to a specific area of the fifth bearing chamber 116 through high-speed rotation for lubrication, and the differential output shaft 3 can also drive the lubricating oil into the bearing area in the fifth bearing chamber 116, that is, the lubricating oil can directly reach the fifth bearing chamber 116 after passing through the third bearing chamber 114 and the first bearing chamber 112, so as to achieve lubrication of the fifth bearing chamber 116.

[0055] Please continue to refer to Figure 1 and Figure 2 . In some embodiments, the housing 11 may further have a second diversion space 117. The second diversion space 117 may be disposed on the side of the second bearing chamber 113 away from the liquid storage chamber 111. The first bearing chamber 112 communicates with the fourth bearing chamber 115 through the second diversion space 117, and the oil driven by the gear ring of the differential output shaft 3 is guided to the fourth bearing chamber 115 through the second diversion space 117. Since the distance between the fourth bearing chamber 115 and the first bearing chamber 112 is relatively far, by providing the second diversion space 117, the lubricating oil in the first bearing chamber 112 can be directly introduced into the fourth bearing chamber 115 through the second diversion space 117, which is beneficial to improving the safety of vehicle operation.

[0056] Please continue to refer to Figure 1 and Figure 2 . In some embodiments, a second guiding protrusion 118 may be provided inside the housing 11. The second guiding protrusion 118 is disposed on the side of the second bearing chamber 113 away from the liquid storage chamber 111. The second guiding protrusion 118 extends from the third bearing chamber 114 towards the fourth bearing chamber 115. The second guiding protrusion 118 and the inner side wall of the housing 11 enclose the second diversion space 117. Such a setting has a simple structure, which is beneficial to reducing the manufacturing cost of the hybrid power system.

[0057] Please refer to Figure 1 、 Figure 2 and Figure 4 , Figure 4Schematic diagram of the lubrication of the output shaft provided by some embodiments of the present application. In some embodiments, an open bearing 1142 may be provided in the third bearing chamber 114. The extension line of the taper angle of the open bearing 1142 is within the extension line range of the rotation angle of the gear ring of the differential output shaft 3. Among them, the taper angle of the open bearing 1142 is generally the same as the rotation angle of the gear ring of the differential output shaft 3. Thus, when the differential output shaft 3 drives the lubricating oil to near the third bearing chamber 114, the lubricating oil can splash towards the third bearing chamber 114 under the drive of the differential output shaft 3. This open bearing 1142 is conducive to gathering the splashed lubricating oil, enabling the components in the third bearing chamber 114 to obtain an appropriate amount of lubricating oil, thereby ensuring a good passive lubrication effect, enabling the hybrid system to operate efficiently, and further reducing the risk of vehicle out of control.

[0058] The vehicle according to the embodiments of the present application will be described below.

[0059] The embodiments of the present application provide a vehicle, including the above-mentioned hybrid system. Thus, it is conducive to reducing the risk of vehicle out of control.

[0060] The control method of the vehicle according to the embodiments of the present application will be described below.

[0061] The control method of the vehicle includes the following steps:

[0062] S1: Determine whether the oil pump fails. Specifically, during the driving of the vehicle, the vehicle realizes active lubrication through the oil pump and passive lubrication through the structure in the transmission housing 11. Among them, passive lubrication is carried out continuously during the operation of the vehicle, while active lubrication needs to be controlled by the oil pump. Thus, by determining whether the oil pump fails, it can be determined whether the vehicle is still performing active lubrication.

[0063] S2: If the oil pump fails, control the oil pump to stop rotating and limit the power operation of the vehicle. Specifically, by controlling the oil pump to stop rotating, the vehicle no longer performs active lubrication. By limiting the power of the vehicle, the vehicle can still drive under passive lubrication, thereby ensuring the safety of vehicle driving and avoiding secondary damage to the transmission assembly 1.

[0064] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

[0065] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope

[0066] disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

[0067] Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the said claims.

Claims

1. A hybrid power system, characterized in that: The hybrid power system comprises: A transmission assembly, the transmission assembly comprising a housing, the housing comprising a liquid storage chamber, a first bearing chamber, a second bearing chamber, a third bearing chamber, a fourth bearing chamber and a fifth bearing chamber, the liquid storage chamber being used to store lubricating oil, the liquid storage chamber having a throttle hole, the liquid storage chamber being communicated with the first bearing chamber through the throttle hole, the first bearing chamber being used to install a differential output shaft, the second bearing chamber being used to install an engine input shaft, the third bearing chamber being used to install an output shaft, the fourth bearing chamber being used to install a first motor input shaft, and the fifth bearing chamber being used to install a second motor input shaft; an oil pump, the oil pump being disposed in the housing; The oil driven by the ring gear of the differential output shaft is guided to one or more of the second bearing chamber, the third bearing chamber, the fourth bearing chamber and the fifth bearing chamber.

2. The hybrid power system according to claim 1, characterized in that: The first bearing chamber has a first bearing hole. A first guide protrusion is arranged in the first bearing chamber. The first guide protrusion extends along the circumferential direction of the first bearing hole. The first guide protrusion and the side wall of the first bearing chamber enclose a first guide space. The ring gear of the differential output shaft is located in the first guide space, and the first guide space is connected to the liquid storage cavity and the third bearing chamber to guide the oil driven by the ring gear of the differential output shaft to the third bearing chamber.

3. The hybrid power system according to claim 2, characterized in that: A first guide groove is further provided in the first bearing chamber. The first guide groove is located on a side of the first bearing hole away from the liquid storage cavity. One end of the first guide groove is connected to the first guide space, and the other end extends to the first bearing hole.

4. The hybrid power system according to claim 3, characterized in that: The housing has a second guide groove, which is located on a side of the first guide groove away from the first guide protrusion. One end of the second guide groove is communicated with the first guide space, and the other end extends to the third bearing chamber.

5. The hybrid power system according to claim 2, characterized in that: The fifth bearing chamber is located on a side of the third bearing chamber away from the liquid storage cavity, and is communicated with both the first bearing chamber and the third bearing chamber.

6. The hybrid power system according to claim 1, characterized in that: The housing has a second flow guide space, which is arranged on a side of the second bearing chamber away from the liquid storage chamber. The first bearing chamber is connected to the fourth bearing chamber through the second flow guide space, and the oil driven by the ring gear of the differential output shaft is guided to the fourth bearing chamber through the second flow guide space.

7. The hybrid power system according to claim 6, characterized in that: A second guide protrusion is provided in the shell, and the second guide protrusion is arranged on a side of the second bearing chamber away from the liquid storage chamber. The second guide protrusion extends from the third bearing chamber toward the fourth bearing chamber, and the second guide protrusion and the inner wall of the shell enclose the second guide space.

8. The hybrid power system according to claim 1, characterized in that: An open bearing is arranged in the third bearing chamber, and an extension line of a tapered angle of the open bearing is located within the extension line range of a rotation angle of the gear ring of the differential output shaft.

9. A vehicle, characterized in that: A hybrid power system comprising any one of claims 1-8.

10. A vehicle control method, applied to the vehicle according to claim 9, characterized in that: The vehicle control method comprises: Determining whether the oil pump fails; If the oil pump fails, the oil pump is controlled to stop, and the vehicle is operated with limited power.

Images