Cooling and lubricating system and method and vehicle

Abstract

The invention discloses a cooling and lubricating system and method and a vehicle, and relates to the technical field of vehicles. The first end of the five-way valve is connected with the first end of the oil supply device through a pipeline, and the five-way valve controls communication among different oil ways by moving a valve element; the second end of the five-way valve is connected with the first end of the driving motor through a pipeline, and the second end of the driving motor is connected with the second end of the oil supply device through a pipeline. Compared with the prior art, the oil path can be adjusted according to actual requirements by utilizing the flexibility of the five-way valve, so that the cooling and lubricating requirements of the driving motor system in different scenes are more flexibly and accurately met, unnecessary energy consumption waste is avoided, the adaptability and the energy utilization efficiency of the system are improved, and the service life of the driving motor system is prolonged. And the reliability and the economical efficiency of the system are improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly to a cooling and lubrication system, a method and a vehicle. Background Art

[0002] The integrated drive motor system integrates key components such as a drive motor, a transmission, and an inverter, and combines an integrated oil circuit design to share an oil pump and a radiator, thereby reducing the number of components and connection links, and improving the compactness, efficiency, and reliability of the system. The system adopts an electronically speed-controllable lubrication mechanism, which can intelligently adjust the flow rate of the cooling oil according to the actual temperature and lubrication requirements of each component.

[0003] Currently, related technologies adjust the flow rate by actively controlling the rotational speed of the oil pump to achieve adaptive adjustment for different working modes and conditions, so as to reduce energy consumption while achieving the cooling and lubrication effect.

[0004] However, as the functions of the drive motor system increase, the cooling and lubrication system that only adjusts the rotational speed of the oil pump simply cannot fully meet the cooling and lubrication requirements of the drive motor in different scenarios, and thus easily causes energy consumption waste. Summary of the Invention

[0005] In view of this, the present application provides a cooling and lubrication system, a method and a vehicle, mainly aiming to improve the technical problem that the existing cooling and lubrication system in the current technology cannot fully meet the cooling and lubrication requirements of the drive motor in different scenarios, and thus easily causes energy consumption waste.

[0006] In a first aspect, the present application provides a cooling and lubrication system, including:

[0007] An oil supply device;

[0008] A five-way valve, the first end of the five-way valve is connected to the first end of the oil supply device through a pipeline, and the five-way valve controls the connection between different oil circuits by moving a spool;

[0009] A drive motor, the second end of the five-way valve is connected to the first end of the drive motor through a pipeline, and the second end of the drive motor is connected to the second end of the oil supply device through a pipeline.

[0010] Optionally, the system further includes:

[0011] A heat exchanger, the first end of the heat exchanger is connected to the third end of the five-way valve through a pipeline, and the second end of the heat exchanger is connected to the fourth end of the five-way valve through a pipeline.

[0012] Optionally, the system further includes:

[0013] Reducer, the first end of the reducer is connected to the fifth end of the five-way valve through a pipeline, and the second end of the reducer is connected to the second end of the oil supply device through a pipeline.

[0014] Optionally, the oil supply device includes:

[0015] Oil sump;

[0016] Suction filter, the first end of the suction filter is connected to the oil sump through a pipeline;

[0017] Oil pump, the first end of the oil pump is connected to the second end of the suction filter through a pipeline;

[0018] Pressure filter, the first end of the pressure filter is connected to the second end of the oil pump through a pipeline, and the second end of the pressure filter is connected to the first end of the five-way valve through a pipeline.

[0019] In a second aspect, the present application provides a control method for a cooling and lubrication system, which is applied to the cooling and lubrication system as described in the first aspect. The method includes:

[0020] In response to a control instruction of the cooling and lubrication system, turn on the oil supply device in the cooling and lubrication system;

[0021] By moving the spool of the five-way valve in the cooling and lubrication system, control the oil circuit connection in the cooling and lubrication system.

[0022] Optionally, the step of turning on the oil supply device in the cooling and lubrication system in response to a control instruction of the cooling and lubrication system includes:

[0023] In response to an opening instruction for the pre-lubrication mode and / or the auxiliary drive dragging operation mode before startup, turn on the oil supply device in the cooling and lubrication system;

[0024] The step of controlling the oil circuit connection in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes:

[0025] By moving the spool of the five-way valve in the cooling and lubrication system, open the first end, the third end and the fifth end of the five-way valve, and control the connection of the oil supply device, the reducer oil circuit and the heat exchanger oil circuit in the cooling and lubrication system.

[0026] Optionally, the step of turning on the oil supply device in the cooling and lubrication system in response to a control instruction of the cooling and lubrication system includes:

[0027] In response to an opening instruction for the stall heating mode and / or the boost charging mode, turn on the oil supply device in the cooling and lubrication system;

[0028] Controlling the oil circuit connection in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes:

[0029] By moving the spool of the five-way valve in the cooling and lubrication system, opening the first end, second end, third end, and fourth end of the five-way valve to control the connection between the oil outlet of the heat exchanger and the motor oil circuit in the cooling and lubrication system, and the connection between the oil supply device and the oil inlet of the heat exchanger.

[0030] Optionally, opening the oil supply device in the cooling and lubrication system in response to a control instruction of the cooling and lubrication system includes:

[0031] Opening the oil supply device in the cooling and lubrication system in response to an opening instruction for the low-temperature and light-load operation mode;

[0032] Controlling the oil circuit connection in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes:

[0033] By moving the spool of the five-way valve in the cooling and lubrication system, opening the first end, second end, fourth end, and fifth end of the five-way valve to control the connection between the oil supply device, the oil outlet of the heat exchanger, the motor oil circuit, and the reduction gearbox oil circuit in the cooling and lubrication system.

[0034] Optionally, opening the oil supply device in the cooling and lubrication system in response to a control instruction of the cooling and lubrication system includes:

[0035] Opening the oil supply device in the cooling and lubrication system in response to an opening instruction for the medium-high temperature and light-load operation mode;

[0036] Controlling the oil circuit connection in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes:

[0037] By moving the spool of the five-way valve in the cooling and lubrication system, opening the first end, second end, third end, fourth end, and fifth end of the five-way valve to control the connection between the oil outlet of the heat exchanger and the motor oil circuit in the cooling and lubrication system, and the connection between the oil supply device, the reduction gearbox oil circuit, and the oil inlet of the heat exchanger.

[0038] Optionally, opening the oil supply device in the cooling and lubrication system in response to a control instruction of the cooling and lubrication system includes:

[0039] Opening the oil supply device in the cooling and lubrication system in response to an opening instruction for the standby mode;

[0040] Controlling the oil circuit connection in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes:

[0041] By moving the spool of the five-way valve in the cooling and lubrication system, the first end and the third end of the five-way valve are opened to control the communication between the oil supply device in the cooling and lubrication system and the oil inlet of the heat exchanger.

[0042] Optionally, said opening the oil supply device in the cooling and lubrication system in response to a control instruction of the cooling and lubrication system includes:

[0043] In response to an opening instruction for the low-temperature heavy-load operation mode, opening the oil supply device in the cooling and lubrication system;

[0044] Said controlling the oil circuit communication in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes:

[0045] By moving the spool of the five-way valve in the cooling and lubrication system, the first end, the second end, the fourth end and the fifth end of the five-way valve are opened to control the communication between the oil supply device, the oil outlet of the heat exchanger, the motor oil circuit and the reduction gearbox oil circuit in the cooling and lubrication system;

[0046] After a first preset time, by moving the spool of the five-way valve in the cooling and lubrication system, the third end of the five-way valve is opened to control the communication between the oil supply device, the oil inlet of the heat exchanger and the reduction gearbox oil circuit in the cooling and lubrication system, and the communication between the oil outlet of the heat exchanger and the motor oil circuit;

[0047] After a second preset time, by moving the spool of the five-way valve in the cooling and lubrication system, the communication between the oil supply device and the oil inlet of the heat exchanger in the cooling and lubrication system is controlled, and the oil outlet of the heat exchanger, the reduction gearbox oil circuit and the motor oil circuit are communicated.

[0048] Optionally, said opening the oil supply device in the cooling and lubrication system in response to a control instruction of the cooling and lubrication system includes:

[0049] In response to an opening instruction for the medium-high temperature heavy-load operation mode, opening the oil supply device in the cooling and lubrication system;

[0050] Said controlling the oil circuit communication in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes:

[0051] By moving the spool of the five-way valve in the cooling and lubrication system, the first end, the second end, the third end, the fourth end and the fifth end of the five-way valve are opened to control the communication between the oil supply device and the oil inlet of the heat exchanger in the cooling and lubrication system, and the communication between the oil outlet of the heat exchanger, the reduction gearbox oil circuit and the motor oil circuit; or,

[0052] By moving the spool of the five-way valve in the cooling and lubrication system, the oil supply device, the oil inlet of the heat exchanger, and the oil circuit of the reduction gearbox are controlled to be connected, and the oil outlet of the heat exchanger and the oil circuit of the motor are connected.

[0053] In a third aspect, a computer-readable storage medium stores a computer program thereon, characterized in that when the computer program is executed by a processor, the method described in the second aspect is implemented.

[0054] In a fourth aspect, the present application provides an electronic device including the method described in the second aspect.

[0055] In a fifth aspect, the present application provides a vehicle including the system described in the first aspect, or the computer-readable storage medium described in the third aspect, or the electronic device described in the fourth aspect.

[0056] By means of the above technical solution, a cooling and lubrication system, method and vehicle provided by the present application, wherein the cooling and lubrication system includes an oil supply device; a five-way valve, the first end of the five-way valve is connected to the first end of the oil supply device through a pipeline, and the five-way valve controls the connection between different oil circuits by moving the spool; a driving motor, the second end of the five-way valve is connected to the first end of the driving motor through a pipeline, and the second end of the driving motor is connected to the second end of the oil supply device through a pipeline. Compared with the current prior art, the present application can adjust the oil circuit path according to actual needs by using the flexibility of the five-way valve, so as to more flexibly and accurately meet the cooling and lubrication requirements of the driving motor system in different scenarios, avoid unnecessary energy consumption waste, improve the adaptability and energy utilization efficiency of the system, and thus enhance the reliability and economy of the system.

[0057] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specific embodiments of the present application are specifically given. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0060] Figure 1Shows a schematic structural diagram of a cooling and lubrication system provided by an embodiment of the present application;

[0061] Figure 2 Shows a schematic structural diagram of an example provided by an embodiment of the present application;

[0062] Figure 3 Shows a schematic flow diagram of a control method for a cooling and lubrication system provided by an embodiment of the present application;

[0063] Figure 4 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0064] Figure 5 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0065] Figure 6 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0066] Figure 7 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0067] Figure 8 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0068] Figure 9 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0069] Figure 10 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0070] Figure 11 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0071] Figure 12 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0072] Figure 13 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0073] Figure 14 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0074] Figure 15 Shows a schematic flow diagram of an example provided by an embodiment of the present application;

[0075] Figure 16 Shows a schematic structural diagram of a vehicle provided by an embodiment of the present application;

[0076] Reference numerals:

[0077] Fuel supply device 1; five-way valve 2; drive motor 3; heat exchanger 4; reduction gearbox 5;

[0078] Oil sump 11; suction filter 12; oil pump 13; pressure filter 14. Specific embodiments

[0079] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present application 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 should not be construed as a limitation to the present application.

[0080] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0081] In the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0082] The present application will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0083] The following is combined with Figure 1 Describe a cooling and lubrication system according to some embodiments of the present application.

[0084] A cooling and lubrication system provided in this embodiment, such as Figure 1As shown in the figure, it includes: an oil supply device 1; a five-way valve 2, the first end of the five-way valve 2 is connected to the first end of the oil supply device 1 through a pipeline, and the five-way valve 2 controls the connection between different oil circuits by moving the valve core; a driving motor 3, the second end of the five-way valve 2 is connected to the first end of the driving motor 3 through a pipeline, and the second end of the driving motor 3 is connected to the second end of the oil supply device 1 through a pipeline.

[0085] In some examples, the oil supply device 1 is responsible for providing the necessary lubricating oil for the cooling and lubrication system to ensure that all components are fully lubricated and cooled.

[0086] Exemplarily, the five-way valve 2 can control the connection between different oil circuits by using a moving valve core, so as to adjust the amount and path of the lubricating oil flowing to each component according to actual needs.

[0087] Exemplarily, the five-way valve 2 can also deliver the regulated lubricating oil to the driving motor 3 to achieve effective lubrication and cooling. The driving motor 3 is also connected to the oil supply device 1 through a pipeline, forming a complete circulation system, so that the lubricating oil can continuously flow in the system, ensuring the stable operation and high efficiency of the system, improving the reliability and efficiency of the system, and being able to flexibly adapt to different working modes and working conditions requirements.

[0088] In some examples, by utilizing the flexibility of the five-way valve 2, the oil circuit path is adjusted according to actual needs to ensure that the lubricating oil can achieve the best cooling and lubrication effects under different working conditions, while maintaining the stability and high-efficiency operation of the system. The cooling and lubrication system in this embodiment not only improves the energy utilization efficiency, but also enhances the overall reliability and adaptability.

[0089] In view of this, this embodiment provides a cooling and lubrication system, including an oil supply device; a five-way valve, the first end of the five-way valve is connected to the first end of the oil supply device through a pipeline, and the five-way valve controls the connection between different oil circuits by moving the valve core; a driving motor, the second end of the five-way valve is connected to the first end of the driving motor through a pipeline, and the second end of the driving motor is connected to the second end of the oil supply device through a pipeline. By utilizing the flexibility of the five-way valve, the oil circuit path can be adjusted according to actual needs, so as to more flexibly and accurately meet the cooling and lubrication requirements of the driving motor system in different scenarios, avoid unnecessary energy consumption waste, improve the adaptability and energy utilization efficiency of the system, and thus enhance the reliability and economy of the system.

[0090] In some embodiments, the system further includes: a heat exchanger 4, the first end of the heat exchanger 4 is connected to the third end of the five-way valve 2 through a pipeline, and the second end of the heat exchanger 4 is connected to the fourth end of the five-way valve 2 through a pipeline.

[0091] Exemplarily, the main function of the heat exchanger 4 in the system is to cool the lubricating oil. It can cool the heated lubricating oil flowing in from the five-way valve 2, and then distribute it to the components that need lubrication and cooling, such as the drive motor 3, through the five-way valve 2.

[0092] In some embodiments, the system further includes: a reduction box 5, a first end of the reduction box 5 is connected to the fifth end of the five-way valve 2 through a pipeline, and a second end of the reduction box 5 is connected to the second end of the oil supply device 1 through a pipeline.

[0093] For example, the lubricating oil regulated by the five-way valve 2 can flow into the reduction box 5 to provide necessary lubrication and cooling for it. The reduction box 5 is directly connected to the oil supply device 1 through a pipeline, so that the lubricating oil can flow back to the oil supply device 1 after completing the lubrication and cooling tasks of the reduction box 5, forming a complete circulation system. The five-way valve 2 is responsible for controlling the flow direction and distribution of the lubricating oil to ensure that the reduction box 5 can be properly treated.

[0094] In some embodiments, the oil supply device 1 includes: an oil pool 11; a suction filter 12, a first end of the suction filter 12 is connected to the oil pool 11 through a pipeline; an oil pump 13, a first end of the oil pump 13 is connected to the second end of the suction filter 12 through a pipeline; a pressure filter 14, a first end of the pressure filter 14 is connected to the second end of the oil pump 13 through a pipeline, and the second end of the pressure filter 14 is connected to the first end of the five-way valve 2 through a pipeline.

[0095] Exemplarily, the oil supply device 1 is composed of an oil pool 11, a suction filter 12, an oil pump 13 and a filter press 14. The oil pool 11 is used as a storage container for lubricating oil to provide a source of lubricating oil for the entire system. The suction filter 12 is used to filter large particles of impurities in the lubricating oil extracted from the oil pool 11 to prevent these impurities from entering the subsequent lubrication system and causing damage. The oil pump 13 is responsible for delivering the lubricating oil that has been initially filtered to various parts of the system at a certain pressure. The filter press 14 further finely filters the lubricating oil to ensure that it reaches a highly clean state and avoids fine particles from causing wear to system components. The treated lubricating oil is delivered to the five-way valve 2 through the filter press 14, and then distributed to the drive motor 3, the reduction box 5 and other components that need lubrication and cooling according to actual needs. This ensures the efficient circulation of lubricating oil in the entire system, while improving the reliability and performance of the system.

[0096] In some examples, the oil supply device 1 ensures the continuous supply and circulation of lubricating oil throughout the system, thereby maintaining the efficient operation of the system and extending the service life of mechanical components, which not only improves the reliability and efficiency of the system, but also can flexibly adapt to different working conditions and requirements.

[0097] The cooling and lubrication system in this embodiment consists of an oil sump 11, a suction filter 12, an oil pump 13, a pressure filter 14, a five-way valve 2, an electric motor, and a reduction gearbox 5, covering five main oil circuits including the oil circuit of the reduction gearbox 5, the oil circuit of the electric motor, the oil outlet of the oil pump 13, the oil inlet of the heat exchanger 4, and the oil outlet of the heat exchanger 4. Among them, the five-way valve 2, as the core component, connects these five oil circuits and switches different connection modes by moving the spool of the valve left and right, supporting different connection forms of the oil circuits under various working modes. The cooling and lubrication system in this embodiment not only achieves precise lubrication and cooling of the reduction gearbox 5 and the electric motor, but also can flexibly adjust the oil circuit configuration according to the actual operation requirements, ensuring that the system can operate efficiently under various working conditions, while optimizing energy consumption and effectively improving the performance and reliability of the entire drive motor system.

[0098] Compared with the current existing technologies, this embodiment provides a cooling and lubrication system that can adjust the oil circuit path according to the actual needs by utilizing the flexibility of the five-way valve, so as to more flexibly and precisely meet the cooling and lubrication requirements of the drive motor system in different scenarios, avoid unnecessary energy consumption waste, improve the adaptability and energy utilization efficiency of the system, and further enhance the reliability and economy of the system.

[0099] In order to improve the technical problem that the cooling and lubrication system in the current existing technologies cannot fully adapt to the cooling and lubrication requirements of the drive motor in different scenarios, which is prone to cause energy consumption waste. This embodiment provides a control method for the cooling and lubrication system, as Figure 3 shown, the method includes:

[0100] Step 201, in response to the control instruction of the cooling and lubrication system, turn on the oil supply device in the cooling and lubrication system.

[0101] Exemplarily, the control instruction of the cooling and lubrication system may include an opening instruction for the working mode, a closing instruction for the working mode, etc. Among them, the working modes include but are not limited to pre-lubrication mode, auxiliary drive towing operation mode, locked-rotor heating mode, boost charging mode, low-temperature light-load operation mode, medium-high temperature light-load operation mode, standby mode, low-temperature heavy-load operation mode, medium-high temperature heavy-load operation mode, etc.

[0102] In some examples, the oil supply device consists of an oil sump, a suction filter, an oil pump, and a pressure filter, ensuring the continuous supply and circulation of the lubricating oil in the whole system, thus maintaining the efficient operation of the system and extending the service life of mechanical components, not only improving the reliability and efficiency of the system, but also being able to flexibly adapt to different working conditions and requirements.

[0103] Step 202, control the connection of the oil circuit in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system.

[0104] Exemplarily, by moving the spool of the five-way valve in the cooling lubrication system, the connection mode of different oil circuits in the cooling lubrication system can be precisely controlled, so as to flexibly adjust the flow direction and flow rate of the lubricating oil according to actual needs. This way enables the system to efficiently respond to various working conditions, ensuring that key components such as the drive motor and the reduction gearbox operate under optimal lubrication and cooling conditions, while avoiding unnecessary energy consumption and improving the reliability and energy utilization efficiency of the overall system.

[0105] For example, the control modes of the five-way valve may include but are not limited to the following:

[0106] Exemplarily, as Figure 4 shown, in Mode 1, the spool is located at the leftmost position, allowing the oil from the oil sump to directly enter the motor oil circuit for lubrication and cooling, while a closed loop is formed between the inlet and outlet of the heat exchanger to maintain the oil temperature stable. At this time, the reduction gearbox oil circuit is not connected, and the system mainly focuses on the lubrication and cooling requirements of the motor.

[0107] Exemplarily, as Figure 5 shown, when the spool is moved a certain distance to the right to Mode 2, the oil from the oil sump continues to flow to the motor oil circuit to provide lubrication and cooling, while the heat exchanger maintains its function. In addition, the reduction gearbox oil circuit starts to be partially connected, meaning that the lubricating oil also begins to lubricate and cool the reduction gearbox to a certain extent, but the effect is not as significant as when it is fully connected.

[0108] Exemplarily, as Figure 6 shown, when the spool is further moved to the right to the position of Mode 3, the oil from the oil sump not only provides lubricating oil for the motor oil circuit, but also fully covers the reduction gearbox oil circuit, ensuring that both key components can be fully lubricated and cooled. At the same time, the heat exchanger continues to work to maintain the oil temperature stability of the system.

[0109] Exemplarily, as Figure 7 shown, in Mode 4, the position of the spool causes the oil from the oil sump to turn to the reduction gearbox oil circuit, giving priority to meeting the lubrication and cooling requirements of the reduction gearbox, while the motor oil circuit is not connected temporarily. The heat exchanger still operates to ensure that the temperature of the lubricating oil after passing through the reduction gearbox is properly adjusted.

[0110] Exemplarily, as Figure 8 shown, when the spool continues to move to the right to Mode 5, although the main flow direction of the oil from the oil sump is still the reduction gearbox oil circuit, the motor oil circuit also starts to be partially connected, which means that the system begins to consider the lubrication and cooling requirements of both the reduction gearbox and the motor simultaneously, although this connection is not complete.

[0111] Exemplarily, as Figure 9As shown, in Mode Six, the spool valve is located at the rightmost position, and the oil outlet from the oil sump fully covers the oil circuits of the reduction gearbox and the motor, ensuring that both can obtain sufficient lubricating oil to achieve the best lubrication and cooling effects. At the same time, the heat exchanger continues to operate to ensure that the entire system can maintain a stable oil temperature and an efficient operating state under various working conditions.

[0112] In some examples, according to the requirements under different working modes, the mode of the five-way valve is adjusted to optimize the motor cooling, reduction gearbox lubrication and heat dissipation. The correspondence table between the working modes of the five-way valve and the functions of the drive motor is specifically shown in the following table:

[0113] Table 1

[0114]

[0115] Exemplarily, in the pre-lubrication mode before startup, the five-way valve is set to Mode Two, mainly to meet the strong lubrication requirements of the reduction gearbox; in the stall heating and boost charging mode, the five-way valve is set to Mode Five to meet the strong cooling requirements of the motor; in the low-temperature and light-load operation mode, the five-way valve is set to Mode Three to balance the weak cooling requirements of the motor and the medium lubrication requirements of the reduction gearbox; in the low-temperature and heavy-load operation mode, the five-way valve switches from Mode Three to Mode Six and then back to Mode Four to adapt to medium to strong cooling and lubrication requirements; in the medium- and high-temperature and light-load operation mode, the five-way valve is set to Mode Six to meet the medium cooling and lubrication requirements; in the medium- and high-temperature and heavy-load operation mode, the five-way valve switches back and forth between Mode Four and Mode Six to cope with strong cooling and lubrication requirements; in the auxiliary drive towing operation mode, the five-way valve is set to Mode Two, mainly to meet the weak lubrication requirements of the reduction gearbox; in the standby mode, the five-way valve is set to Mode One, and there are no cooling and lubrication requirements at this time.

[0116] Through the above six modes, the five-way valve can flexibly adjust the flow direction and distribution of the lubricating oil to meet the lubrication and cooling requirements under different working conditions, thereby improving the overall performance and energy utilization efficiency of the system.

[0117] Optionally, step 201 may specifically include: in response to the opening instruction of the pre-lubrication mode before startup and / or the auxiliary drive towing operation mode, opening the oil supply device in the cooling and lubrication system; correspondingly, step 202 may specifically include: by moving the spool valve of the five-way valve in the cooling and lubrication system, opening the first end, the third end and the fifth end of the five-way valve, and controlling the connection of the oil supply device, the reduction gearbox oil circuit and the heat exchanger oil circuit in the cooling and lubrication system.

[0118] Exemplarily, such as Figure 10As shown, in the adaptive pre-lubrication mode and / or the auxiliary drive towing operation mode, after the oil pump discharges oil, it is directly connected to the oil inlet of the heat exchanger, and the oil outlet of the heat exchanger is directly connected to the motor oil circuit, and the reduction gearbox oil circuit is not connected. This mode is applicable to scenarios such as blocked-rotor heating of the vehicle cooling circuit, where the reduction gearbox does not require cooling and lubrication. It can reduce the power of the oil pump to achieve the same heat exchange efficiency as the traditional cooling system, or it can achieve a greater heat exchange efficiency at the same oil pump power. Ensure that the lubricating oil can flow from the oil supply device to the reduction gearbox for necessary pre-lubrication, and maintain the appropriate temperature of the lubricating oil through the heat exchanger to prepare for subsequent efficient operation.

[0119] In some examples, after the oil pump discharges oil, it is directly connected to the reduction gearbox oil circuit to play a lubricating role. The oil outlet of the heat exchanger is blocked. Since the heat exchanger is a closed cavity, there is actually no flow at the oil inlet, and the other channels are not connected. This mode is applicable to the pre-lubrication of the drive system before startup. At this time, the power of the oil pump can be appropriately reduced to achieve the same pre-lubrication effect.

[0120] Optionally, step 201 may specifically further include: in response to the opening command of the blocked-rotor heating mode and / or the boost charging mode, opening the oil supply device in the cooling and lubrication system; correspondingly, step 202 may specifically further include: by moving the valve core of the five-way valve in the cooling and lubrication system, opening the first end, the second end, the third end, and the fourth end of the five-way valve, controlling the communication between the oil outlet of the heat exchanger and the motor oil circuit in the cooling and lubrication system, and the communication between the oil supply device and the oil inlet of the heat exchanger.

[0121] Exemplarily, as Figure 11 As shown, in the blocked-rotor heating mode and / or the boost charging mode, the lubricating oil starts from the oil supply device, passes through the heat exchanger for temperature adjustment, and then directly flows to the motor oil circuit to provide necessary lubrication and temperature control for the motor. After the oil pump discharges oil, it is directly connected to the oil inlet of the heat exchanger, and the oil outlet of the heat exchanger is directly connected to the motor oil circuit, and the reduction gearbox oil circuit is not connected. This mode is applicable to scenarios such as blocked-rotor heating of the vehicle cooling circuit, where the reduction gearbox does not require cooling and lubrication. It can reduce the power of the oil pump to achieve the same heat exchange efficiency as the traditional cooling system, or it can achieve a greater heat exchange efficiency at the same oil pump power.

[0122] Optionally, step 201 may specifically further include: in response to the opening command of the low-temperature light-load operation mode, opening the oil supply device in the cooling and lubrication system; correspondingly, step 202 may specifically further include: by moving the valve core of the five-way valve in the cooling and lubrication system, opening the first end, the second end, the fourth end, and the fifth end of the five-way valve, controlling the communication between the oil supply device, the oil outlet of the heat exchanger, the motor oil circuit, and the reduction gearbox oil circuit in the cooling and lubrication system.

[0123] Exemplarily, as Figure 12As shown, in the low-temperature and light-load operation mode, the oil outlet of the oil pump is connected to both the motor oil circuit and the gearbox oil circuit simultaneously. The oil inlet of the heat exchanger is blocked. Since the heat exchanger is a closed cavity, there is no flow at the oil outlet. At this time, the oil in the lubrication and cooling system circulates directly without cooling, which is suitable for low-temperature scenarios. Meanwhile, the heat generated by the motor during operation can quickly increase the oil temperature inside the drive motor system, improve lubrication, and enhance efficiency.

[0124] Optionally, step 201 may specifically further include: in response to the start command of the medium-high temperature and light-load operation mode, starting the oil supply device in the cooling and lubrication system; correspondingly, step 202 may specifically further include: by moving the spool of the five-way valve in the cooling and lubrication system, opening the first end, second end, third end, fourth end, and fifth end of the five-way valve, controlling the connection between the oil outlet of the heat exchanger and the motor oil circuit in the cooling and lubrication system, and the connection between the oil supply device, the gearbox oil circuit, and the oil inlet of the heat exchanger.

[0125] Exemplarily, as Figure 13 As shown, in the medium-high temperature and light-load operation mode, the oil outlet of the oil pump is respectively connected to the gearbox oil circuit and the oil inlet of the heat exchanger, and the oil after flowing out of the heat exchanger is directly connected to the motor oil circuit. At this time, the oil in the motor oil circuit is completely cooled oil with a relatively low temperature. The oil in the gearbox oil circuit is the hot oil in the oil sump with a relatively high temperature. At this time, dual-temperature zone control of the motor and the gearbox can be achieved, and the efficiency of the drive motor system is higher.

[0126] Optionally, step 201 may specifically further include: in response to the start command of the standby mode, starting the oil supply device in the cooling and lubrication system; correspondingly, step 202 may specifically further include: by moving the spool of the five-way valve in the cooling and lubrication system, opening the first end and the third end of the five-way valve, controlling the connection between the oil supply device and the oil inlet of the heat exchanger in the cooling and lubrication system.

[0127] Exemplarily, as Figure 14 As shown, in the standby mode, the oil outlet of the heat exchanger is blocked. Since the heat exchanger is a closed cavity, there is actually no flow at the oil inlet. All other circuits are blocked and disconnected. Since the heat exchanger is a closed cavity, functionally it is equivalent to all passages being disconnected. At this time, part of the lubricating oil is blocked between the five-way valve, the oil pump, and the radiator, and it will not fall into the oil sump due to gravity during standby. The time for re-establishing the lubricating oil circuit during restart can be reduced, especially suitable for improving the problem of long low-temperature lubrication establishment time.

[0128] Optionally, step 201 may specifically further include: in response to the opening instruction of the low-temperature heavy-load operation mode, starting the oil supply device in the cooling and lubrication system; correspondingly, step 202 may specifically further include: by moving the spool of the five-way valve in the cooling and lubrication system, opening the first end, the second end, the fourth end and the fifth end of the five-way valve, and controlling the connection of the oil supply device, the heat exchanger oil outlet, the motor oil circuit and the reduction gearbox oil circuit in the cooling and lubrication system; after the first preset time, by moving the spool of the five-way valve in the cooling and lubrication system, opening the third end of the five-way valve, and controlling the connection of the oil supply device, the heat exchanger oil inlet and the reduction gearbox oil circuit in the cooling and lubrication system, and the connection of the heat exchanger oil outlet and the motor oil circuit; after the second preset time, by moving the spool of the five-way valve in the cooling and lubrication system, controlling the connection of the oil supply device and the heat exchanger oil inlet, and the connection of the heat exchanger oil outlet, the reduction gearbox oil circuit and the motor oil circuit.

[0129] Exemplarily, as Figure 15 shown, the direct connection of the oil pump outlet to the heat exchanger inlet, and the heat exchanger outlet is connected to both the motor oil circuit and the reduction gearbox oil circuit at the same time. This mode is the most conventional lubrication and cooling mode.

[0130] In some examples, in the low-temperature heavy-load operation mode, first, by moving the spool of the five-way valve, the first end, the second end, the fourth end and the fifth end of the five-way valve can be opened to form a connection between the oil supply device, the heat exchanger oil outlet, the motor oil circuit and the reduction gearbox oil circuit, as Figure 12 shown in the figure. Ensure that the lubricating oil can flow from the oil supply device, through the heat exchanger oil outlet, directly to the motor oil circuit and the reduction gearbox oil circuit to provide initial lubrication for these two key parts. After the first preset time, further adjust the spool of the five-way valve to open the third end while keeping the other ports open, as Figure 13 shown in the figure. At this time, a new connection path is formed between the oil supply device and the heat exchanger oil inlet as well as the reduction gearbox oil circuit, and at the same time, the connection between the heat exchanger oil outlet and the motor oil circuit is established. The newly supplied lubricating oil is first temperature-adjusted by the heat exchanger and then distributed to the reduction gearbox oil circuit and the motor oil circuit to ensure that the lubricating oil is at the optimal working temperature. After the second preset time, adjust the spool of the five-way valve again so that the oil supply device is only connected to the heat exchanger oil inlet, while the heat exchanger oil outlet is connected to the reduction gearbox oil circuit and the motor oil circuit, as Figure 14 shown in the figure. All the lubricating oil must pass through the adjustment of the heat exchanger before entering the reduction gearbox oil circuit and the motor oil circuit, ensuring that the lubricating oil can continuously maintain within a suitable working temperature range during the circulation in the whole system, thereby optimizing the operation efficiency and stability of the whole system.

[0131] Optionally, step 201 may specifically further include: in response to an opening instruction for the medium-high temperature and high-load operation mode, turning on the oil supply device in the cooling and lubrication system; correspondingly, step 202 may specifically further include: by moving the spool of the five-way valve in the cooling and lubrication system, turning on the first end, second end, third end, fourth end, and fifth end of the five-way valve, controlling the connection between the oil supply device in the cooling and lubrication system and the oil inlet of the heat exchanger, and the connection between the oil outlet of the heat exchanger, the gearbox oil circuit, and the motor oil circuit; or, by moving the spool of the five-way valve in the cooling and lubrication system, controlling the connection between the oil supply device, the oil inlet of the heat exchanger, and the gearbox oil circuit, and the connection between the oil outlet of the heat exchanger and the motor oil circuit.

[0132] In some examples, in the medium-high temperature and high-load operation mode, it is possible to flexibly move the spool of the five-way valve to achieve switching between the two modes shown in Figure 13 and Figure 14 to meet different lubrication and cooling requirements. First, in the mode shown in Figure 13 , turn on the first end, second end, third end, fourth end, and fifth end of the five-way valve, so that the oil supply device is connected to the oil inlet of the heat exchanger, and at the same time ensure that the lubricating oil after temperature adjustment by the heat exchanger can flow to the gearbox oil circuit and the motor oil circuit, providing comprehensive and temperature-appropriate lubrication protection. In the mode shown in Figure 14 , adjust the position of the spool of the five-way valve to form a connection between the oil supply device, the oil inlet of the heat exchanger, and the gearbox oil circuit, while the oil outlet of the heat exchanger is dedicated to providing temperature-adjusted lubricating oil for the motor oil circuit. By switching back and forth between these two modes, the lubricating oil path can be flexibly adjusted according to the actual working conditions, optimizing the lubrication and cooling effects on the gearbox and the motor, thereby improving the overall performance and adaptability of the system, and ensuring that the equipment can be optimally maintained and protected under various operating conditions.

[0133] Compared with the current existing technologies, in this embodiment, before low-temperature startup, the power of the pre-lubrication oil pump is reduced to reduce noise without affecting the pre-lubrication effect; during the blocked-rotor heating and boost charging processes, only lubricating oil is provided to the motor, which not only reduces the power consumption of the oil pump but also improves the heat exchange efficiency; during low-temperature operation, the heat generated by the motor is used to quickly increase the oil temperature, improving the low-temperature energy consumption performance of the system; during medium-high temperature and light-load operation, the transmission efficiency of the motor and the gearbox is improved through precise temperature regulation; in the auxiliary drive towing operation mode, the cooling oil supply to the motor is reduced to further reduce the power consumption of the oil pump. These measures work together to not only reduce the overall energy consumption of the system but also enhance the operating efficiency and stability. By utilizing the flexibility of the five-way valve, the oil path can be adjusted according to actual needs, so as to more flexibly and precisely meet the cooling and lubrication requirements of the drive motor system in different scenarios, avoid unnecessary energy consumption waste, improve the adaptability and energy utilization efficiency of the system, and thus enhance the reliability and economy of the system.

[0134] Based on the above-mentioned method as Figure 3 shown, correspondingly, this embodiment also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned method as Figure 3 shown is implemented.

[0135] Based on such an understanding, the technical solution of this application can be embodied in the form of a software product. The software product can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of various implementation scenarios of this application.

[0136] Based on the above-mentioned system as Figure 1 shown, this embodiment of the application also provides an electronic device, such as intelligent terminals such as smartphones, tablets, drones, intelligent robots, and wearables. The device includes the method as Figure 3 shown.

[0137] Optionally, the above-mentioned physical device may further include a user interface, a network interface, a camera, a Radio Frequency (RF) circuit, sensors, an audio circuit, a WI-FI module, and so on. The user interface may include a display screen (Display), an input unit such as a keyboard (Keyboard), etc. Optionally, the user interface may further include a USB interface, a card reader interface, etc. The network interface may optionally include a standard wired interface, a wireless interface (such as a WI-FI interface), etc.

[0138] Those skilled in the art can understand that the above-mentioned physical device structure provided in this embodiment does not constitute a limitation on the physical device, and may include more or fewer components, or combine certain components, or have different component arrangements.

[0139] The storage medium may further include an operating system and a network communication module. The operating system is a program for managing the hardware and software resources of the above-mentioned physical device, and supports the operation of information processing programs and other software and / or programs. The network communication module is used to implement communication between components inside the storage medium, and communication between other hardware and software in the information processing physical device.

[0140] Figure 16 It is a block diagram of a vehicle 600 shown according to an exemplary embodiment. For example, the vehicle 600 can be a hybrid vehicle, or a non-hybrid vehicle, an electric vehicle, a fuel cell vehicle, or other types of vehicles. The vehicle 600 can be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.

[0141] Referring toFigure 16 , vehicle 600 may include various subsystems. For example, an infotainment system 610, a perception system 620, a decision control system 630, a drive system 640, and a computing platform 650. Among them, vehicle 600 may also include more or fewer subsystems, and each subsystem may include multiple components. In addition, each subsystem and each component of vehicle 600 may be interconnected by wired or wireless means.

[0142] In some embodiments, the infotainment system 610 may include a communication system, an entertainment system, a navigation system, etc.

[0143] The perception system 620 may include several sensors for sensing information about the environment around vehicle 600. For example, the perception system 620 may include a global positioning system (the global positioning system may be a GPS system, a Beidou system, or other positioning systems), an inertial measurement unit (IMU), lidar, millimeter-wave radar, ultrasonic radar, and a camera device.

[0144] The decision control system 630 may include a computing system, a vehicle controller, a steering system, an accelerator, and a braking system.

[0145] The drive system 640 may include components that provide powered movement for vehicle 600. In one embodiment, the drive system 640 may include an engine, an energy source, a powertrain, and wheels. The engine may be one or a combination of an internal combustion engine, an electric motor, and an air compression engine. The engine can convert the energy provided by the energy source into mechanical energy.

[0146] Some or all functions of vehicle 600 are controlled by the computing platform 650. The computing platform 650 may include at least one processor 651 and a memory 652. The processor 651 may execute instructions 653 stored in the memory 652.

[0147] The processor 651 may be any conventional processor, such as a commercially available CPU. The processor may also include, for example, a Graphic Process Unit (GPU), a Field Programmable Gate Array (FPGA), a System on Chip (SOC), an Application Specific Integrated Circuit (ASIC), or a combination thereof.

[0148] The memory 652 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0149] In addition to the instructions 653, the memory 652 can also store data, such as road maps, route information, data on the position, direction, speed, etc. of the vehicle. The data stored in the memory 652 can be used by the computing platform 650.

[0150] In the embodiments of the present disclosure, the processor 651 can execute the instructions 653 to complete all or part of the steps of the above-described control method for the cooling and lubrication system.

[0151] Based on the method as Figure 3 shown above, this embodiment also provides a chip, including at least one processor and a communication interface; the communication interface is used to receive signals input to the chip or signals output from the chip, and the processor communicates with the communication interface and implements the method as Figure 3 shown above through logic circuits or by executing code instructions.

[0152] Through the description of the above embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus a necessary general hardware platform, or can also be implemented by hardware. By applying the solution of this embodiment, compared with the current existing technologies, this embodiment can adjust the oil circuit path according to actual needs by utilizing the flexibility of the five-way valve, so as to more flexibly and accurately meet the cooling and lubrication requirements of the drive motor system in different scenarios, avoid unnecessary energy consumption waste, improve the adaptability and energy utilization efficiency of the system, and further enhance the reliability and economy of the system.

[0153] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so 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 statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0154] In addition, the word "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as advantageous over other aspects or designs. Rather, the word exemplary is intended to present concepts in a concrete fashion. As used herein, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise or clear from the context, "X applies A or B" is intended to mean any of the natural inclusive permutations. That is, if X applies A; X applies B; or X applies both A and B, then "X applies A or B" is satisfied under any one of the foregoing instances. Additionally, unless specified otherwise or clear from the context that it refers to the singular form, the articles "a" and "an" as used in this application and the appended claims are generally understood to mean "one or more".

[0155] Likewise, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. Specifically with respect to the various functions performed by the components (e.g., elements, resources, etc.) described above, unless otherwise indicated, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if not structurally equivalent to the disclosed structure. Additionally, although a particular feature of the present disclosure may have been disclosed with respect to only one of several implementations, such a feature may, as may be desired and advantageous for any given or particular application, be combined with one or more other features of other implementations. Further, with respect to the use of "comprises", "comprising", "has", "having", "includes", or variants thereof in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term "including".

[0156] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known in the art or conventional techniques not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0157] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A cooling and lubrication system, characterized in that, Comprising: An oil supply device; A five-way valve, the first end of the five-way valve is connected to the first end of the oil supply device through a pipeline, and the five-way valve controls the connection between different oil circuits by moving a spool; A driving motor, the second end of the five-way valve is connected to the first end of the driving motor through a pipeline, and the second end of the driving motor is connected to the second end of the oil supply device through a pipeline.

2. The cooling lubrication system according to claim 1, characterized in that, The system further comprises: A heat exchanger, the first end of the heat exchanger is connected to the third end of the five-way valve through a pipeline, and the second end of the heat exchanger is connected to the fourth end of the five-way valve through a pipeline.

3. The cooling and lubrication system according to claim 1, characterized in that, The system further comprises: A speed reducer, the first end of the speed reducer is connected to the fifth end of the five-way valve through a pipeline, and the second end of the speed reducer is connected to the second end of the oil supply device through a pipeline.

4. The cooling and lubrication system according to claim 1, characterized in that The oil supply device includes: An oil sump; A suction filter, the first end of the suction filter is connected to the oil sump through a pipeline; An oil pump, the first end of the oil pump is connected to the second end of the suction filter through a pipeline; A pressure filter, the first end of the pressure filter is connected to the second end of the oil pump through a pipeline, and the second end of the pressure filter is connected to the first end of the five-way valve through a pipeline.

5. A control method for a cooling and lubrication system, characterized in that, Applied to the cooling and lubrication system according to any one of claims 1 to 4, the method includes: In response to a control instruction of the cooling and lubrication system, starting the oil supply device in the cooling and lubrication system; By moving the spool of the five-way valve in the cooling and lubrication system, controlling the connection of the oil circuits in the cooling and lubrication system.

6. The control method of the cooling and lubrication system according to claim 5, characterized in that, The step of, in response to a control instruction of the cooling and lubrication system, starting the oil supply device in the cooling and lubrication system, includes: In response to an opening instruction of a pre-lubrication mode before startup and / or an auxiliary drive dragging operation mode, starting the oil supply device in the cooling and lubrication system; The step of, by moving the spool of the five-way valve in the cooling and lubrication system, controlling the connection of the oil circuits in the cooling and lubrication system, includes: By moving the spool of the five-way valve in the cooling and lubrication system, opening the first end, the third end and the fifth end of the five-way valve, and controlling the connection of the oil supply device, the speed reducer oil circuit and the heat exchanger oil circuit in the cooling and lubrication system.

7. The control method of the cooling and lubrication system according to claim 5, characterized in that, The step of, in response to a control instruction of the cooling and lubrication system, starting the oil supply device in the cooling and lubrication system, includes: In response to an opening instruction of a blocked-rotor heating mode and / or a boost charging mode, starting the oil supply device in the cooling and lubrication system; The step of, by moving the spool of the five-way valve in the cooling and lubrication system, controlling the connection of the oil circuits in the cooling and lubrication system, includes: By moving the spool of the five-way valve in the cooling and lubrication system, opening the first end, the second end, the third end and the fourth end of the five-way valve, and controlling the connection of the heat exchanger oil outlet and the motor oil circuit, and the connection of the oil supply device and the heat exchanger oil inlet in the cooling and lubrication system.

8. The control method of the cooling and lubrication system according to claim 5, characterized in that, The step of, in response to a control instruction of the cooling and lubrication system, starting the oil supply device in the cooling and lubrication system, includes: In response to an opening instruction of a low-temperature light-load operation mode, starting the oil supply device in the cooling and lubrication system; The step of, by moving the spool of the five-way valve in the cooling and lubrication system, controlling the connection of the oil circuits in the cooling and lubrication system, includes: By moving the spool of the five-way valve in the cooling and lubrication system, the first end, the second end, the fourth end, and the fifth end of the five-way valve are opened, and the oil supply device, the oil outlet of the heat exchanger, the motor oil circuit, and the reduction gearbox oil circuit in the cooling and lubrication system are controlled to be connected.

9. The control method of the cooling and lubrication system according to claim 5, characterized in that, The opening of the oil supply device in the cooling and lubrication system in response to the control instruction of the cooling and lubrication system includes: In response to the opening instruction of the medium-high temperature and weak load operation mode, the oil supply device in the cooling and lubrication system is opened; The controlling the oil circuit connection in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes: By moving the spool of the five-way valve in the cooling and lubrication system, the first end, the second end, the third end, the fourth end, and the fifth end of the five-way valve are opened, and the oil outlet of the heat exchanger and the motor oil circuit in the cooling and lubrication system are controlled to be connected, and the oil supply device, the reduction gearbox oil circuit, and the oil inlet of the heat exchanger are connected.

10. The control method of the cooling and lubrication system according to claim 5, characterized in that, The opening of the oil supply device in the cooling and lubrication system in response to the control instruction of the cooling and lubrication system includes: In response to the opening instruction of the standby mode, the oil supply device in the cooling and lubrication system is opened; The controlling the oil circuit connection in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes: By moving the spool of the five-way valve in the cooling and lubrication system, the first end and the third end of the five-way valve are opened, and the oil supply device and the oil inlet of the heat exchanger in the cooling and lubrication system are controlled to be connected.

11. The control method of the cooling and lubrication system according to claim 5, characterized in that, The opening of the oil supply device in the cooling and lubrication system in response to the control instruction of the cooling and lubrication system includes: In response to the opening instruction of the low temperature and strong load operation mode, the oil supply device in the cooling and lubrication system is opened; The controlling the oil circuit connection in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes: By moving the spool of the five-way valve in the cooling and lubrication system, the first end, the second end, the fourth end, and the fifth end of the five-way valve are opened, and the oil supply device, the oil outlet of the heat exchanger, the motor oil circuit, and the reduction gearbox oil circuit in the cooling and lubrication system are controlled to be connected; After a first preset time, by moving the spool of the five-way valve in the cooling and lubrication system, the third end of the five-way valve is opened, and the oil supply device, the oil inlet of the heat exchanger, and the reduction gearbox oil circuit in the cooling and lubrication system are controlled to be connected, and the oil outlet of the heat exchanger and the motor oil circuit are connected; After a second preset time, by moving the spool of the five-way valve in the cooling and lubrication system, the oil supply device and the oil inlet of the heat exchanger in the cooling and lubrication system are controlled to be connected, and the oil outlet of the heat exchanger, the reduction gearbox oil circuit, and the motor oil circuit are connected.

12. The control method of the cooling and lubrication system according to claim 5, characterized in that, The opening of the oil supply device in the cooling and lubrication system in response to the control instruction of the cooling and lubrication system includes: In response to the opening instruction of the medium-high temperature and strong load operation mode, the oil supply device in the cooling and lubrication system is opened; The controlling the oil circuit connection in the cooling and lubrication system by moving the spool of the five-way valve in the cooling and lubrication system includes: By moving the spool of the five-way valve in the cooling and lubrication system, the first end, the second end, the third end, the fourth end and the fifth end of the five-way valve are opened, and the oil supply device in the cooling and lubrication system is controlled to communicate with the oil inlet of the heat exchanger, and the oil outlet of the heat exchanger, the oil circuit of the reduction gearbox and the oil circuit of the motor are communicated; or, By moving the spool of the five-way valve in the cooling and lubrication system, the oil supply device, the oil inlet of the heat exchanger and the oil circuit of the reduction gearbox in the cooling and lubrication system are controlled to communicate, and the oil outlet of the heat exchanger and the oil circuit of the motor are communicated.

13. A vehicle, characterized in that, Comprises the system according to any one of claims 1 to 4.

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