Oil management device, driving assembly and vehicle

Abstract

An oil management device, a driving assembly and a vehicle. The oil management device (10) comprises an oil pan (11), a suction filter (12), an oil pump (13) and a heat sink (14), wherein the oil pan (11) is provided with an oil storage cavity (15) and has an oil outlet (16); the suction filter (12) is arranged inside the oil storage cavity (15); the oil pump (13) and the heat sink (14) are both fixed to the oil pan (11); and oil in the oil storage cavity (15) flows to the oil outlet (16) through the suction filter (12), the oil pump (13) and the heat sink (14) in sequence.

Description

Oil management device, drive assembly and vehicle

[0001] Cross-reference to related applications

[0002] The present disclosure claims priority to the Chinese patent application No. 202410855020.0, filed on June 27, 2024, and entitled "Oil management device, drive assembly and vehicle", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of vehicles, in particular, to an oil management device, a drive assembly and a vehicle. BACKGROUND

[0004] The oil system is arranged in the housing of the drive assembly, and in order to facilitate the circulation of oil, various components of the oil system are often connected by oil supply pipelines. Therefore, a plurality of oil supply pipelines need to be connected to the housing of the drive assembly, which leads to a complex design of the housing of the drive assembly and a large space occupied by the drive assembly. SUMMARY

[0005] The purpose of the present disclosure is to provide an oil management device, a drive assembly and a vehicle, which can simplify the structure of the housing of the drive assembly and save the space occupied by the drive assembly.

[0006] In order to achieve the above-mentioned purpose, according to a first aspect of the present disclosure, an oil management device is provided, which comprises an oil pan, a suction filter, an oil pump and a radiator, the oil pan is formed with an oil storage cavity and is provided with an oil outlet, the suction filter is arranged in the oil storage cavity, the oil pump and the radiator are both fixed to the oil pan, and the oil in the oil storage cavity flows to the oil outlet through the suction filter, the oil pump and the radiator in sequence.

[0007] Optionally, the oil management device further comprises a pressure filter, the pressure filter is fixed to the oil pan, and the pressure filter is arranged on one side of the oil pump and communicates the oil pump and the radiator.

[0008] Optionally, the axis of the oil pump extends in parallel to the X direction, and the pressure filter is arranged at an angle to the axis of the oil pump to avoid the oil pump.

[0009] Optionally, the radiator, the oil pump and the pressure filter are arranged in the X direction, and the projection of the pressure filter in the X direction overlaps part of the projection of the oil pump in the X direction.

[0010] Optionally, the oil management device further comprises a temperature sensor fixed to the oil pan and arranged downstream of the outlet of the radiator, the temperature sensor being configured to detect the temperature of the oil flowing out of the radiator.

[0011] Optionally, the oil pan has a central axis extending in the X direction, the number of the suction filter, the oil pump, the radiator, the pressure filter and the temperature sensor is two respectively, the two suction filters, the two oil pumps, the two radiators, the two pressure filters and the two temperature sensors are symmetrically arranged about the central axis respectively, and the two oil pumps are located between the two pressure filters.

[0012] Optionally, the oil pan is made of glass fiber reinforced PA polyamide material.

[0013] According to a second aspect of the present disclosure, a drive assembly is provided, the drive assembly comprising the above-mentioned oil management device.

[0014] Optionally, the drive assembly comprises a housing, the housing is formed with an engine oil cavity, the engine oil cavity is communicated with the oil storage cavity through an oil circuit, and the oil pump is configured to pump the oil in the oil storage cavity to the engine oil cavity through the oil circuit and the radiator.

[0015] Optionally, the oil circuit has an oil return port and an oil outlet port, the oil return port and the oil outlet port are arranged on the oil pan respectively, the engine oil cavity is communicated with the oil storage cavity through the oil return port, and the radiator is communicated with the engine oil cavity through the oil outlet port.

[0016] Optionally, the drive assembly comprises a motor and a speed reducer, the oil circuit comprises a first oil path and a second oil path, the first oil path is communicated with the engine oil cavity and the motor, and the second oil path is communicated with the engine oil cavity and the speed reducer.

[0017] Optionally, the drive assembly further comprises an electromagnetic valve, the first oil path comprises a rotor oil path and a stator oil path in parallel, the rotor oil path and the stator oil path are respectively configured to supply oil to the rotor and the stator of the motor, and the electromagnetic valve is arranged on the rotor oil path and is configured as a normally closed electromagnetic valve.

[0018] According to a third aspect of the present disclosure, a vehicle is provided, the vehicle comprising the above-mentioned drive assembly.

[0019] By means of the technical scheme, in the oil management device provided by the present disclosure, the oil in the oil storage cavity can flow through the suction filter, the oil pump and the radiator in turn under the action of the oil pump. In this process, the suction filter can filter impurities in the oil to improve the cleanliness of the oil, and the radiator can reduce the temperature of the oil. The suction filter, the oil pump and the radiator are integrated in the oil management device, which has high integration degree and can simplify the arrangement of the oil supply pipeline to save the space occupied by the oil management device. When the oil management device provided by the present disclosure is applied in the field of drive assembly, the oil management device can provide oil for components that need to be lubricated and cooled. In this case, there is no need to additionally arrange components such as suction filter, oil pump and radiator in the shell of the drive assembly, which can simplify the structure of the shell of the drive assembly. At the same time, the oil management device with high integration degree can also reduce the space occupation of the drive assembly.

[0020] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, which together with the following specific embodiments, serve to explain the present disclosure but do not constitute a limitation thereof. In the drawings:

[0022] Fig. 1 is a structural schematic diagram of an oil management device according to an exemplary embodiment of the present disclosure;

[0023] Fig. 2 is a structural schematic diagram of a drive assembly according to an exemplary embodiment of the present disclosure;

[0024] Fig. 3 is a hydraulic principle diagram of a drive assembly according to an exemplary embodiment of the present disclosure;

[0025] Fig. 4 is a structural schematic diagram of a drive assembly according to an exemplary embodiment of the present disclosure;

[0026] Fig. 5 is a relationship schematic diagram of an oil management device, a drive assembly and a vehicle according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0028] In the present disclosure, the orientation words such as "inner" and "outer" are used in the sense of "inner" and "outer" relative to the self outline of the corresponding component, and in addition, the terms "first", "second" and the like used in the present disclosure are used to distinguish one element from another element, and do not have sequentiality and importance. In addition, in the following description, when referring to the drawings, the same reference numerals in different drawings represent the same or similar elements, unless otherwise explained. The above definitions are only used to explain and illustrate the present disclosure, and should not be understood as a limitation on the present disclosure.

[0029] According to a first aspect of the present disclosure, referring to FIG. 1, FIG. 3 and FIG. 4, an oil management device 10 is provided, which comprises an oil pan 11, a suction filter 12, an oil pump 13 and a radiator 14, the oil pan 11 is formed with an oil storage cavity 15 and is provided with an oil outlet 16, the suction filter 12 is arranged in the oil storage cavity 15, the oil pump 13 and the radiator 14 are both fixed to the oil pan 11, and the oil in the oil storage cavity 15 flows to the oil outlet 16 through the suction filter 12, the oil pump 13 and the radiator 14 in sequence.

[0030] Through the above technical solution, in the oil management device 10 provided by the present disclosure, the oil in the oil storage cavity 15 can flow through the suction filter 12, the oil pump 13 and the radiator 14 in sequence under the action of the oil pump 13, and in this process, the suction filter 12 can filter impurities in the oil to improve the cleanliness of the oil, and the radiator 14 can reduce the temperature of the oil. Among them, the suction filter 12, the oil pump 13 and the radiator 14 are integrated in the oil management device 10, which has high integration degree and can simplify the arrangement of the oil supply pipeline to save the space occupied by the oil management device 10. When the oil management device 10 provided by the present disclosure is applied in the field of drive assembly, the oil management device 10 can provide oil for components that need to be lubricated and cooled, and in this case, there is no need to additionally arrange components such as suction filter 12, oil pump 13 and radiator 14 in the shell 21 of the drive assembly, which can simplify the structure of the shell 21 of the drive assembly, and at the same time, the high integration degree of the oil management device can also reduce the space occupation of the drive assembly.

[0031] In the oil management device provided in the present disclosure, in order to further improve the cleanliness of the oil, as an exemplary embodiment, referring to FIG. 1 and FIG. 3, the oil management device 10 can further comprise a filter press 17, the filter press 17 can be fixed to the oil pan 11, and the filter press 17 can be arranged on one side of the oil pump 13 and communicate with the oil pump 13 and the radiator 14. Wherein, the oil pumped out by the oil pump 13 will pass through the filter press 17 and the radiator 14 in turn, the filter press 17 can intercept the fine impurities in the oil on the filter screen of the filter press 17, so as to improve the cleanliness of the oil, so as to avoid the blockage of the oil management device after long time use, so as to improve the service life of the oil management device. In addition, arranging the filter press 17 on one side of the oil pump 13 can shorten the flow path of the oil.

[0032] In the oil management device provided in the present disclosure, the oil pump 13 and the filter press 17 can be arranged in any suitable manner, as an exemplary embodiment, referring to FIG. 1, the axis of the oil pump 13 can extend parallel to the X direction, and the filter press 17 can be arranged at an angle with the axis of the oil pump 13 to avoid the oil pump 13, so that the filter press 17 is arranged at an angle with the axis of the oil pump 13, which can provide a working space for disassembling the filter press 17, and the operation is convenient.

[0033] In the oil management device provided in the present disclosure, the radiator 14, the oil pump 13 and the filter press 17 can be arranged at any suitable position, as an exemplary embodiment, referring to FIG. 1, the radiator 14, the oil pump 13 and the filter press 17 can be arranged at intervals in the X direction, and the projection of the filter press 17 in the X direction can overlap with the projection of the oil pump 13 in the X direction. That is, the filter press 17 and the oil pump 13 are also arranged at intervals in the Y direction, so that the radiator 14, the oil pump 13 and the filter press 17 can be arranged compactly to save the space occupied by the oil management device.

[0034] It should be noted that "projection in the X direction" refers to the projection of the corresponding component on the XZ plane. In addition, the above-mentioned "X direction" refers to the length direction of the vehicle 30, the "Y direction" refers to the width direction of the vehicle 30, and the "Z direction" refers to the height direction of the vehicle 30.

[0035] In the oil management device provided in the present disclosure, in order to ensure the cooling effect of the oil management device 10, as an exemplary embodiment, referring to FIG. 1, the oil management device 10 can further comprise a temperature sensor 18, the temperature sensor 18 can be fixed to the oil pan 11 and arranged downstream of the outlet of the radiator 14, and the temperature sensor 18 is used to detect the oil temperature flowing out of the radiator 14. Wherein, the oil management device 10 can be applied to the drive assembly of the vehicle 30, and the oil in the oil management device 10 can be used to cool the drive assembly of the vehicle 30, so that the oil temperature flowing out of the radiator 14 can be detected by the temperature sensor 18 to monitor the oil temperature for cooling the drive assembly in real time. In addition, the temperature sensor 18 can be electrically connected with the vehicle controller of the vehicle 30, and the oil temperature signal can be transmitted to the vehicle controller, and the vehicle controller can calculate the output speed of the oil pump 13 according to the oil temperature signal, the temperature of the drive assembly (such as the motor) and the current working condition of the drive assembly (such as the motor), so as to ensure the oil pumping capacity of the oil pump 13, and further ensure the cooling effect of the oil on the drive assembly, and improve the performance of the vehicle 30.

[0036] In the oil management device provided in the present disclosure, the oil pan 11 can be constructed in any suitable manner, as an exemplary embodiment, referring to FIG. 1, the oil pan 11 can have a central axis extending in the X direction, the number of the suction filter 12, the oil pump 13, the radiator 14, the pressure filter 17 and the temperature sensor 18 can be two respectively, the two suction filters 12, the two oil pumps 13, the two radiators 14, the two pressure filters 17 and the two temperature sensors 18 can be arranged symmetrically about the central axis respectively, and the two oil pumps 13 can be located between the two pressure filters 17. In this way, the oil management device can be applied to the drive assembly of the double motor, and the symmetrically arranged two suction filters 12, two oil pumps 13, two radiators 14, two pressure filters 17 and two temperature sensors 18 can respectively provide the two motors in the drive assembly with cooled oil, so as to ensure that the cooling effect of the oil on the two motors is equivalent, so as to prevent one of the motors from reaching the torque limit temperature first, and further to improve the service life of the drive assembly. Wherein, the oil pump 13 is a semi-insertion type oil pump. The two oil pumps 13 can respectively pump oil to the two motors to independently cool the two motors according to the working condition of each motor.

[0037] In addition, the oil pump 13 is located between the two pressure filters 17, so that the oil pump 13 and the suction filter 12 installed at the front end of the oil pump 13 can be located at the position close to the middle of the oil pan 11, so as to facilitate the suction filter 12 to suck oil from the oil storage cavity 15 and prevent the oil pump 13 from being sucked empty. In addition, the oil pump 13 is located between the two pressure filters 17, that is, the two pressure filters 17 are arranged on the two sides of the two oil pumps 13, since the pressure filter 17 is a consumable part, the above arrangement can provide an operating space for the operator to facilitate the operator to repair and replace the pressure filter 17.

[0038] In the oil management device provided by the present disclosure, the oil pan 11 can be made of any suitable material. As an exemplary embodiment, the oil pan 11 can be made of glass fiber reinforced PA polyamide material. Compared with a metal shell, the glass fiber reinforced PA polyamide can make the weight of the oil pan 11 lighter. As a specific embodiment, the oil pan 11 can be made of PA66+30GF material, which has a density of 1.3 g / cm 3 -1.4 g / cm 3 , a long-term temperature resistance of 140℃, a heat distortion temperature of 200℃, and a tensile strength of 20 MPa. The PA66+30GF material has the properties of electrochemical corrosion resistance, wear resistance, and fatigue resistance.

[0039] In the oil management device provided by the present disclosure, in order to ensure the heat exchange effect of the radiator 14, as an exemplary embodiment, the oil pan 11 is further provided with a water inlet and a water outlet. The water inlet can allow cooling water to enter the radiator 14, and after the cooling water exchanges heat with the oil, the cooling water can flow out of the radiator 14 through the water outlet.

[0040] According to the second aspect of the present disclosure, referring to FIG. 2, an drive assembly 20 is provided, which includes the above-mentioned oil management device. The oil pan 11 is made of glass fiber reinforced PA polyamide material, which can reduce the weight of the drive assembly 20, improve the lightweight of the drive assembly 20, and further improve the power density of the drive assembly 20.

[0041] In the drive assembly 20 provided by the present disclosure, the oil management device 10 can be arranged at any suitable position. In an exemplary embodiment, the oil management device 10 can be arranged at the bottom or top of the drive assembly 20, which can save the space occupied by the drive assembly 20 in the X direction or the Y direction. In other embodiments, the oil management device 10 can also be arranged at the side of the drive assembly 20. In this embodiment, an additional electric pump needs to be provided to pump the oil in the oil storage cavity 15 to the suction filter 12 to prevent the oil pump 13 from being empty.

[0042] In the drive assembly 20 provided by the present disclosure, as an exemplary embodiment, the drive assembly 20 can include a housing 21, which can form an engine oil cavity. The engine oil cavity can be communicated with the oil storage cavity 15 through an oil circuit. The oil pump 13 is used to pump the oil in the oil storage cavity 15 to the engine oil cavity through the oil circuit and the radiator 14.

[0043] The oil sump 11 can be detachably mounted on the housing 21, so that the oil management device 10 can be manufactured separately, and then the manufactured oil management device 10 is mounted on the housing 21, thereby avoiding arranging the hydraulic elements such as the suction filter 12, the oil pump 13, the radiator 14, the pressure filter 17 and the temperature sensor 18 in the housing 21, and the processing difficulty of the housing 21 can be reduced. In the drive assembly 20 provided in the present disclosure, the oil sump 11 can be detachably mounted on the housing 21 in any suitable manner, and as an exemplary embodiment, the oil sump 11 can be mounted on the housing 21 by bolts, which is convenient to disassemble. In other embodiments, the oil sump 11 can also be detachably mounted on the housing 21 by clamping or other means, which is not specifically limited in the present disclosure.

[0044] In the drive assembly 20 provided in the present disclosure, in order to facilitate the circulation of oil, as an exemplary embodiment, referring to FIG. 1, the oil circuit can have an oil return port 19 and an oil outlet port 16, and the oil return port 19 and the oil outlet port 16 can be arranged on the oil sump 11, respectively. The oil cavity can be in communication with the oil storage cavity 15 through the oil return port 19, and the radiator 14 can be in communication with the oil cavity through the oil outlet port 16. In this way, the oil in the oil storage cavity 15 will first pass through the radiator 14 to exchange heat with the radiator 14 and reduce the temperature, and then enter the oil cavity from the oil outlet port 16 to cool the drive assembly 20, and then return to the oil storage cavity 15 through the oil return port 19 for the next oil circulation.

[0045] In the present disclosure, the oil outlet port 16 can be configured in any suitable manner, and as an exemplary embodiment, referring to FIG. 1, the number of oil outlet ports 16 can be two and integrated on the oil sump 11, and the two oil outlet ports 16 can be arranged near the outlet end of the corresponding radiator 14, so that the circulation path of the oil can be shortened, so that the oil cooled by the radiator 14 can directly enter the oil cavity through the oil outlet port 16, thereby reducing the heat loss of the oil and ensuring the cooling effect of the oil.

[0046] In the drive assembly 20 provided in the present disclosure, as an exemplary embodiment, the drive assembly 20 can include a motor and a reducer, and the oil circuit can include a first oil path and a second oil path, the first oil path can communicate the oil cavity and the motor, and the second oil path can communicate the oil cavity and the reducer. In this way, the oil can lubricate and cool the motor and the reducer through the first oil path and the second oil path, respectively.

[0047] In this embodiment, the oil return port 19 can be configured in any suitable manner. As an exemplary embodiment, referring to FIG. 1, the oil return port 19 can include a motor oil return port 191 and a reducer oil return port 192, which can facilitate the return of the oil for cooling the motor and lubricating the reducer to the oil storage cavity 15. The motor oil return port 191 can be arranged on the oil pan 11 between the oil pump 13 and the radiator 14. It should be noted that when the oil pan 11 is installed on the housing 21, the motor is located between the oil pump 13 and the radiator 14. Therefore, arranging the motor oil return port 191 between the oil pump 13 and the radiator 14 can facilitate the return of the oil for cooling the motor to the oil storage cavity 15. In addition, the reducer oil return port 192 can be two in number and arranged on both sides of the oil pan 11. Therefore, when the oil pan 11 is installed on the housing 21, the reducer is located on one side of the reducer oil return port 192, which can facilitate the return of the oil for lubricating the reducer to the oil storage cavity 15.

[0048] In the drive assembly 20 provided by the present disclosure, in order to facilitate the distribution of the oil, as an exemplary embodiment, referring to FIG. 3, the drive assembly 20 can further include an electromagnetic valve 22, the first oil circuit can include a rotor oil circuit and a stator oil circuit in parallel, the rotor oil circuit and the stator oil circuit can be used to supply oil to the rotor and the stator of the motor respectively, and the electromagnetic valve 22 can be arranged on the rotor oil circuit and configured as a normally closed electromagnetic valve. The normally closed electromagnetic valve can be changed to a normally open state after being powered on, which can facilitate the distribution of the oil flow into the stator and the rotor of the motor to adapt to different working modes of the vehicle 30 and reduce energy consumption. In addition, the rotor oil circuit can also include a first sub-oil circuit and a second sub-oil circuit arranged in parallel, one of the first sub-oil circuit and the second sub-oil circuit is provided with the normally closed electromagnetic valve, and the other is provided with a damping hole. The damping hole can ensure that there is still a small amount of oil in the rotor of the motor when the normally closed electromagnetic valve is in a closed state, so as to ensure that the motor is cooled more fully.

[0049] According to a third aspect of the present disclosure, a vehicle is provided, which includes the above-mentioned drive assembly 20.

[0050] In use of the oil management device provided by the present disclosure, the oil in the oil storage cavity 15 can enter the oil circuit under the action of the oil pump 13. At this time, most of the large particles of impurities can be enriched in the suction filter 12. Then, the oil can pass through the pressure filter 17 and the radiator 14 in sequence. The pressure filter 17 can further intercept small impurities, and the cooling medium in the radiator 14 can exchange heat with the oil to reduce the temperature of the oil. After that, the oil can flow out of the radiator 14 and flow to the oil outlet 16.

[0051] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0052] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0053] In addition, any combination of various different embodiments of the present disclosure can also be made, as long as it does not deviate from the idea of the present disclosure, and it should also be considered as disclosed in the present disclosure.

Claims

1. An oil management device, characterized in that, The oil management device (10) includes: An oil pan (11) is provided, which has an oil storage cavity (15) and an oil outlet (16). A suction filter (12) is disposed in the oil storage chamber (15). Oil pump (13); and The radiator (14), the oil pump (13) and the radiator (14) are both fixed to the oil pan (11). The oil in the oil storage chamber (15) flows sequentially through the suction filter (12), the oil pump (13) and the radiator (14) to the oil outlet (16).

2. The oil management device according to claim 1, characterized in that, The oil management device (10) further includes a filter press (17), which is fixed to the oil pan (11) and arranged on one side of the oil pump (13). The filter press (17) connects the oil pump (13) and the radiator (14).

3. The oil management device according to claim 2, characterized in that, The axis of the oil pump (13) extends parallel to the X direction, and the filter press (17) is arranged at an angle to the axis of the oil pump (13) to avoid the oil pump (13).

4. The oil management device according to claim 3, characterized in that, The radiator (14), the oil pump (13) and the filter press (17) are arranged at intervals in the X direction, and the projection of the filter press (17) in the X direction overlaps with the projection of the oil pump (13) in the X direction.

5. The oil management device according to any one of claims 2-4, characterized in that, The oil management device (10) further includes a temperature sensor (18), which is fixed to the oil pan (11) and arranged downstream of the outlet of the radiator (14). The temperature sensor (18) is used to detect the temperature of the oil flowing out of the radiator (14).

6. The oil management device according to claim 5, characterized in that, The oil pan (11) has a central axis extending in the X direction. The number of the suction filter (12), the oil pump (13), the radiator (14), the filter press (17), and the temperature sensor (18) are two each. The two suction filters (12), the two oil pumps (13), the two radiators (14), the two filter presses (17), and the two temperature sensors (18) are arranged symmetrically about the central axis, and the two oil pumps (13) are located between the two filter presses (17).

7. The oil management device according to any one of claims 1-6, characterized in that, The oil pan (11) is made of glass fiber reinforced PA polyamide material.

8. A drive assembly, characterized in that, The drive assembly (20) includes an oil management device (10) according to any one of claims 1-7.

9. The drive assembly according to claim 8, characterized in that, The drive assembly (20) includes a housing (21) that forms an oil chamber. The oil chamber is connected to the oil reservoir (15) via an oil circuit. The oil pump (13) is used to pump the oil in the oil reservoir (15) to the oil chamber via the oil circuit and the radiator (14).

10. The drive assembly according to claim 9, characterized in that, The oil circuit has an oil return port (19) and an oil outlet (16). The oil return port (19) and the oil outlet (16) are respectively located on the oil pan (11). The oil chamber is connected to the oil storage chamber (15) through the oil return port (19). The radiator (14) is connected to the oil chamber through the oil outlet (16).

11. The drive assembly according to claim 10, characterized in that, The drive assembly (20) includes a motor and a reducer. The oil circuit includes a first oil circuit and a second oil circuit. The first oil circuit connects the oil chamber and the motor, and the second oil circuit connects the oil chamber and the reducer.

12. The drive assembly according to claim 11, characterized in that, The drive assembly (20) also includes a solenoid valve (22). The first oil circuit includes a rotor oil circuit and a stator oil circuit connected in parallel. The rotor oil circuit and the stator oil circuit are respectively used to supply oil to the rotor and stator of the motor. The solenoid valve (22) is arranged on the rotor oil circuit and is configured as a normally closed solenoid valve (22).

13. A vehicle, characterized in that, The vehicle (30) includes a drive assembly (20) according to any one of claims 8-12.

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