Thermal management system, control method, electronic equipment, storage medium and vehicle

Abstract

The invention discloses a heat management system, a control method, electronic equipment, a storage medium and a vehicle, the heat management system comprises a first heat exchange system, the first heat exchange system comprises a first heat exchange sub-system for heat exchange of a first motor, and the first heat exchange sub-system comprises a first branch; the second branch is connected with a first radiator in series; the first control part is connected with the first branch circuit and the second branch circuit; the heat management system is configured to enable the first branch circuit and / or the second branch circuit to conduct heat exchange on the first motor by controlling the first control part. According to the heat management system, the cooling effect of the first motor is guaranteed, and meanwhile, the first radiator does not participate in heat exchange work when the cooling requirement of the first motor is low, so that the energy consumption of the cooling system can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a thermal management system, a control method, an electronic device, a storage medium, and a vehicle. Background Art

[0002] In the prior art, the vehicle's drive device is prone to overheating during operation, resulting in reduced efficiency or burning, and is unable to meet the requirements of high power, high speed and long-term operation. Therefore, the vehicle is equipped with a cooling system to exchange heat for the running motor. Currently, radiators are mostly used to exchange heat for the heat exchange medium in the cooling system. However, when the demand for motor cooling is not large, the use of radiators for heat exchange will result in high energy consumption of the cooling system. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a thermal management system that can ensure cooling of a first motor while also removing the first radiator from heat exchange when the cooling demand for the first motor is low, thereby reducing cooling system energy consumption.

[0004] The present invention also provides a control method.

[0005] The present invention also provides an electronic device.

[0006] The present invention also provides a computer-readable storage medium.

[0007] The present invention also provides a computer program product.

[0008] The present invention also provides a vehicle having the above-mentioned thermal management system or electronic device.

[0009] According to the first aspect of the present invention, the thermal management system includes: a first heat exchange system, the first heat exchange system includes a first sub-heat exchange system for exchanging heat with a first motor, the first sub-heat exchange system includes: a first branch; a second branch, a first radiator is connected in series to the second branch; a first control element, the first control element is connected to the first branch and the second branch; the thermal management system is configured to control the first control element so that the first branch and / or the second branch exchanges heat with the first motor.

[0010] According to the thermal management system of the present invention, by setting a first control component, the thermal management system can ensure the cooling effect of the first motor while also preventing the first radiator from participating in heat exchange when the cooling demand of the first motor is low, thereby reducing the energy consumption of the cooling system.

[0011] According to some embodiments of the present invention, the first branch and the second branch are connected in parallel.

[0012] According to some embodiments of the present invention, the first sub-heat exchange system also includes a first main circuit; the first motor is arranged in the first main circuit, the first control component is connected to the first main circuit, and the first control component is configured to control the connection or disconnection of the first main circuit with the first branch circuit and / or the second branch circuit.

[0013] According to some embodiments of the present invention, the first control component is a three-way valve.

[0014] According to some embodiments of the present invention, the thermal management system further includes: a second heat exchange system, which exchanges heat with the first sub-heat exchange system.

[0015] According to some embodiments of the present invention, the second heat exchange system includes: a first circuit and a first heat exchanger, and the first circuit exchanges heat with the first sub-heat exchange system through the first heat exchanger.

[0016] According to some embodiments of the present invention, the second heat exchange system is used to exchange heat with the battery device.

[0017] According to some embodiments of the present invention, the first sub-heat exchange system further includes: a first pump, which is connected in series to the first main circuit and is used to drive the heat exchange medium in the first sub-heat exchange system to circulate.

[0018] According to some embodiments of the present invention, the first heat exchange system further includes: a second sub-heat exchange system, wherein the second sub-heat exchange system is configured to exchange heat with the first sub-heat exchange system.

[0019] According to some embodiments of the present invention, the second sub-heat exchange system includes: a second loop and a second heat exchanger, and the second loop exchanges heat with the first sub-heat exchange system through the second heat exchanger.

[0020] According to some embodiments of the present invention, the second sub-heat exchange system further includes: a second pump and a drive motor, and the second pump and the drive motor are both connected in series to the second circuit.

[0021] According to some embodiments of the present invention, the second circuit includes: a second main circuit, a first bypass and a second bypass, the first bypass and the second bypass are both connected between the two ends of the second main circuit, the drive motor includes: a second motor and a third motor, the second motor is connected in series to the first bypass, and the third motor is connected in series to the second bypass; the second sub-heat exchange system also includes: a second control element, the second control element is a three-way proportional valve, and the second control element is connected between the second main circuit and the first bypass and the second bypass.

[0022] According to some embodiments of the present invention, the first sub-heat exchange system is a motor liquid cooling system, and the second sub-heat exchange system is a motor oil cooling system.

[0023] According to the control method of the second aspect of the present invention, the control method is used for the thermal management system according to the first aspect of the present invention, and the control method includes: obtaining the operating parameters of the first motor; confirming that the operating parameters reach preset parameters; controlling the first control element so that the first branch and the second branch exchange heat with the first motor, or so that the second branch exchanges heat with the first motor.

[0024] According to the control method of the present invention, after confirming that at least one of the first motor, the second motor and the third motor needs to be cooled, the first control component is controlled to connect the first radiator and the first liquid cooling pipeline, so that the first radiator cools the heat exchange medium in the first heat exchange medium pipeline. While reducing the energy consumption of the cooling system, the operating reliability of the first motor, the second motor and the third motor can also be ensured.

[0025] According to some embodiments of the present invention, the operating parameters include: temperature, power and mechanical power of the first motor.

[0026] According to some embodiments of the present invention, the operating parameter includes temperature, and confirming that the operating parameter reaches a preset parameter includes: confirming that the temperature of the first motor is greater than or equal to a preset temperature.

[0027] According to some embodiments of the present invention, the preset temperature is 100°C-120°C.

[0028] According to some embodiments of the present invention, the control method further includes: obtaining operating parameters of the second motor and the third motor; confirming that the operating parameters of at least one of the first motor, the second motor and the third motor reach preset parameters; controlling the first control element so that the first branch and the second branch exchange heat with the first motor, or so that the second branch exchanges heat with the first motor.

[0029] According to some embodiments of the present invention, the control method further includes: obtaining actual cooling flow requirements of the first motor, the second motor, and the third motor; and adjusting the flow rate of the heat exchange medium in the first sub-heat exchange system according to the cooling flow requirements of the first motor, the second motor, and the third motor.

[0030] According to some embodiments of the present invention, the control method further includes: obtaining actual cooling flow requirements of the first motor, the second motor and the third motor; and adjusting the flow rate of the heat exchange medium required in the second circuit according to the cooling flow requirements of the second motor and the third motor.

[0031] According to some embodiments of the present invention, obtaining actual cooling flow requirements of the first motor, the second motor, and the third motor includes:

[0032] Obtain a flow relationship diagram of the heat generation power, temperature, and cooling flow requirements of the first motor, the second motor, and the third motor; obtain the heat generation power and temperature of the first motor, the second motor, and the third motor; and obtain the actual cooling flow requirements of the first motor, the second motor, and the third motor based on the flow relationship diagram, the heat generation power, and the temperature.

[0033] According to some embodiments of the present invention, adjusting the flow rate of the heat exchange medium in the first sub-heat exchange system includes: adjusting the rotation speed of the first pump.

[0034] According to some embodiments of the present invention, adjusting the flow rate of the heat exchange medium required in the second circuit includes: adjusting the rotation speed of the second pump and / or adjusting the opening of the second control element.

[0035] An electronic device according to a third aspect of the present invention includes: a processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the machine-readable instructions are executed by the processor, the control method according to the second aspect of the present invention is performed.

[0036] According to the electronic device of the present invention, when the machine-readable instructions are executed by the processor, the control method according to the second aspect of the embodiment of the present invention is executed, which can better control the first control component according to the operating parameters of the motor, so that when each motor needs to be cooled, the first radiator participates in heat dissipation and cooling. When the cooling requirements of each motor are low, the first radiator does not participate in heat dissipation and cooling, thereby better managing and controlling the energy consumption of the thermal management system.

[0037] According to the computer-readable storage medium of the fourth aspect of the present invention, the computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer executes the control method according to the second aspect of the present invention.

[0038] According to the computer-readable storage medium of the present invention, when the stored control program is executed by the processor, the above-mentioned control method is implemented, and the first control component can be better controlled according to the operating parameters of the motor, so that when each motor needs to be cooled, the first radiator participates in heat dissipation and cooling. When the cooling demand of each motor is low, the first radiator does not participate in heat dissipation and cooling, thereby better managing and controlling the energy consumption of the thermal management system.

[0039] According to the fifth aspect of the present invention, the computer program product includes a computer program, which is stored in a computer-readable storage medium; when the processor of an electronic device reads the computer program from the computer-readable storage medium, the processor executes the computer program, so that the electronic device executes the control method according to the second aspect of the present invention.

[0040] According to the computer program product of the present invention, the computer program is executed by the processor, so that the electronic device executes the above-mentioned control method, and the first control component can be better controlled according to the operating parameters of the motor, so that when each motor needs to be cooled, the first radiator participates in heat dissipation and cooling. When the cooling demand of each motor is low, the first radiator does not participate in heat dissipation and cooling, thereby better managing and controlling the energy consumption of the thermal management system.

[0041] The vehicle according to the sixth aspect of the present invention includes the thermal management system according to the first aspect of the present invention or the electronic device according to the third aspect of the present invention.

[0042] According to the vehicle of the present invention, the thermal management system according to the first aspect or the electronic device according to the third aspect of the present invention is provided, thereby improving the overall performance of the vehicle.

[0043] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a schematic diagram of a thermal management system according to an embodiment of the present invention;

[0045] Figure 2 is a schematic diagram of a control method for a thermal management system according to an embodiment of the present invention;

[0046] Figure 3 It is a flow relationship diagram of the heat generation power, temperature and cooling flow demand of the first motor, the second motor and the third motor.

[0047] Reference numerals:

[0048] 100. Thermal management system;

[0049] 1. The first heat exchange system;

[0050] 10. First sub-heat exchange system; 11. First motor; 12. First branch circuit; 13. Second branch circuit; 14. First radiator; 15. First control element; 16. First main circuit; 17. First pump; 18. Fan;

[0051] 20. Second sub-heat exchange system; 21. Drive motor; 211. Second motor; 212. Third motor; 22. Second control element; 23. Second circuit; 231. Second main circuit; 232. First bypass; 233. Second bypass; 24. Second heat exchanger; 25. Second pump;

[0052] 2. Second heat exchange system;

[0053] 31. First circuit; 32. First heat exchanger. DETAILED DESCRIPTION

[0054] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0055] Reference below Figure 1 A thermal management system 100 according to an embodiment of a first aspect of the present invention is described.

[0056] like Figure 1 As shown, according to the thermal management system 100 of the first embodiment of the present invention, the thermal management system 100 includes: a first heat exchange system 1 , the first heat exchange system 1 includes a first sub-heat exchange system 10 for exchanging heat for the first motor 11 .

[0057] Specifically, the first motor 11 is the vehicle's power source, primarily providing driving force. The first sub-heat exchange system 10 is primarily used to exchange heat for the first motor 11, ensuring that the first motor 11 operates within a safe temperature range. It should be noted that the first sub-heat exchange system 10 can be used to heat or cool the first motor 11, without limitation.

[0058] Specifically, the first sub-heat exchange system 10 includes: a first branch 12, a second branch 13 and a first control element 15, and the second branch 13 is connected in series with a first radiator 14; the first control element 15 is connected to the first branch 12 and the second branch 13; the thermal management system 100 is configured to control the first control element 15 so that the first branch 12 and / or the second branch 13 exchange heat with the first motor 11.

[0059] Exemplarily, the first sub-heat exchange system 10 is used to cool the first motor 11 , and a low-temperature heat exchange medium flows through the first branch 12 and the second branch 13 to cool the first motor 11 so that the first motor 11 can operate within a safe temperature range.

[0060] Among them, "the thermal management system 100 is configured to control the first control component 15 so that the first branch 12 and / or the second branch 13 exchanges heat with the first motor 11". It can be understood that the thermal management system 100 can control the first control component 15 so that the first motor 11 only exchanges heat with the low-temperature heat exchange medium in the first branch 12, or can control the first control component 15 so that the first motor 11 only exchanges heat with the low-temperature heat exchange medium in the second branch 13, or can control the first control component 15 so that the first motor 11 can exchange heat with both the low-temperature heat exchange medium in the first branch 12 and the low-temperature heat exchange medium in the second branch 13.

[0061] Specifically, when the first motor 11 only exchanges heat with the low-temperature heat exchange medium in the first branch 12, the first radiator 14 connected in series to the second branch 13 does not participate in the heat exchange work between the first sub-heat exchange system 10 and the first motor 11; and when the first motor 11 only exchanges heat with the low-temperature heat exchange medium in the second branch 13, or the first motor 11 can exchange heat with the low-temperature heat exchange medium in the first branch 12 and the low-temperature heat exchange medium in the second branch 13, the second branch 13 and the first radiator 14 both participate in cooling the first motor 11.

[0062] Among them, the first radiator 14 is connected in series to the second branch 13, and the first radiator 14 can be used to dissipate heat and cool the low-temperature heat exchange medium in the second branch 13, thereby further reducing the temperature of the heat exchange medium in the second branch 13, thereby improving the cooling effect of the first sub-heat exchange system 10 on the first motor 11.

[0063] It should be noted that when the cooling demand of the first motor 11 is low, the first control component 15 can be controlled to connect the first branch pipe with the first motor 11, and the connection between the second branch pipe and the first branch pipe or the first motor 11 can be cut off, so that the first radiator 14 does not participate in the work, thereby reducing the energy consumption of the entire first heat exchange system 1; when the cooling demand of the first motor 11 is high, the first control component 15 can be controlled to connect the first motor 11 with the second branch pipe, so that the first radiator 14 can participate in the heat dissipation and cooling of the first sub-heat exchange system 10, thereby improving the cooling efficiency of the first motor 11.

[0064] Optionally, a fan 18 is installed on the first radiator 14, so that the heat dissipation effect of the first radiator 14 can be further improved, and the cooling effect of the first radiator 14 on the heat exchange medium can be improved, thereby improving the cooling efficiency of the first motor 11.

[0065] According to the thermal management system 100 of the present invention, by providing the first control component 15, the thermal management system 100 can ensure the cooling effect of the first motor 11 while also preventing the first radiator 14 from participating in the heat exchange work when the cooling demand of the first motor 11 is low, thereby reducing the energy consumption of the cooling system.

[0066] According to some embodiments of the present invention, Figure 1 As shown, the first branch 12 and the second branch 13 are connected in parallel. This is beneficial to the layout of the first sub-heat exchange system 10 and facilitates the first control element 15 to control the switching of heat exchange with the first motor 11 through the first branch 12 and / or the second branch 13.

[0067] According to some embodiments of the present invention, Figure 1 As shown, the first sub-heat exchange system 10 further includes a first main circuit 16; the first motor 11 is disposed in the first main circuit 16, and the first control element 15 is connected to the first main circuit 16. The first control element 15 is configured to control the connection or disconnection of the first main circuit 16 with the first branch circuit 12 and / or the second branch circuit 13. It is understood that the thermal management system 100 controls the connection or disconnection of the first main circuit 16 with the first branch circuit 12 and / or the second branch circuit 13 through the first control element 15 to achieve control of the heat exchange between the first branch circuit 12 and / or the second branch circuit 13 and the first motor 11. This control method is relatively simple, thereby increasing the response speed, enabling it to quickly respond to changes in system demand, thereby improving the accuracy of control.

[0068] Specifically, when the thermal management system 100 is configured to control the first control component 15 to exchange heat between the first branch 12 and the first motor 11, the first control component 15 is configured to control the first main path 16 to be connected to the first branch 12; when the thermal management system 100 is configured to control the first control component 15 to exchange heat between the second branch 13 and the first motor 11, the first control component 15 is configured to control the first main path 16 to be connected to the second branch 13 and disconnected from the first branch 12; when the thermal management system 100 is configured to control the first control component 15 to exchange heat between the second branch 13 and the first branch 12 and the first motor 11, the first control component 15 is configured to control the first main path 16 to be connected to both the first branch 12 and the second branch 13.

[0069] According to some embodiments of the present invention, Figure 1As shown, the first control element 15 is a three-way valve. A three-way valve is a valve with three channels, primarily used to connect three pipelines to distribute, mix, or switch fluids between the different pipelines. Therefore, the first control element 15 is a three-way valve, which can achieve switching between the first main line 16, the first branch line 12, and the second branch line 13 using a single valve. This reduces the number of valves, thereby reducing the production cost and installation space of the entire thermal management system 100.

[0070] According to some embodiments of the present invention, Figure 1 As shown, the thermal management system 100 further includes a second heat exchange system 2, which exchanges heat with the first sub-heat exchange system 10. It is understood that the second heat exchange system 2 can achieve heat exchange with the first motor 11 by exchanging heat with the first sub-heat exchange system 10. In other words, the first motor 11 can exchange heat through both the first sub-heat exchange system 10 and the second heat exchange system 2, thereby further improving the heat exchange efficiency of the first motor 11.

[0071] Exemplarily, the second heat exchange system 2 and the first sub-heat exchange system 10 are both cooling systems. Thus, the heat exchange between the second heat exchange system 2 and the first sub-heat exchange system 10 can further reduce the temperature of the heat exchange medium flowing in the first sub-heat exchange system 10, thereby enabling the vehicle to be equipped with a more powerful first motor 11 and improve the power of the vehicle.

[0072] According to some embodiments of the present invention, Figure 1 As shown, the second heat exchange system 2 includes: a first circuit 31 and a first heat exchanger 32. The first circuit 31 exchanges heat with the first sub-heat exchange system 10 through the first heat exchanger 32. In this way, direct mixing of different media can be avoided. As a result, the heat exchange medium in the first sub-heat exchange system 10 and the heat exchange medium in the first circuit 31 can be different media, so that the thermal management system 100 can flexibly adjust the cooling capacity according to different working conditions, thereby enhancing the environmental adaptability of the system. In addition, heat exchange through the first heat exchanger 32 can also make the first sub-heat exchange system 10 and the second heat exchange system 2 independent heat exchange systems. In this way, when the first sub-heat exchange system 10 or the second heat exchange system 2 fails, it is easy to repair them separately without affecting the operation of the entire thermal management system 100.

[0073] Illustratively, a heat exchange medium flows in the first circuit 31 , and the first heat exchanger 32 includes a first channel and a second channel for mutual heat exchange. The first channel is connected in series to the first circuit 31 , and the second channel is connected in series to the first main path 16 .

[0074] According to some embodiments of the present invention, the second heat exchange system 2 is used to exchange heat with the battery device. In other words, the present application utilizes the heat exchange system with the battery device to exchange heat with the first sub-heat exchange system 10. This improves the cooling effect of the first motor 11 while reducing the number of components required in the thermal management system 100, thereby reducing the production cost and space occupied by the entire thermal management system 100.

[0075] According to some embodiments of the present invention, Figure 1 As shown, the first sub-heat exchange system 10 further includes a first pump 17, which is connected in series to the first main circuit 16 and is used to drive the circulation of the heat exchange medium within the first sub-heat exchange system 10. Specifically, the first pump 17 primarily provides power for the circulation of the heat exchange medium within the first sub-heat exchange system 10. This effectively ensures the stable circulation of the heat exchange medium in the system, thereby improving heat exchange efficiency. The pump can also adjust the flow rate and pressure according to actual operating conditions, thereby achieving efficient cooling of the first motor 11.

[0076] According to some embodiments of the present invention, Figure 1 As shown, the first heat exchange system 1 further includes a second sub-heat exchange system 20, which is configured to exchange heat with the first sub-heat exchange system 10. This can further improve the cooling effect of the first sub-heat exchange system 10 on the first motor 11, thereby enabling the vehicle to be equipped with a more powerful first motor 11, thereby improving vehicle power.

[0077] According to some embodiments of the present invention, Figure 1 As shown, the second sub-heat exchange system 20 includes a second circuit 23 and a second heat exchanger 24. The second circuit 23 exchanges heat with the first sub-heat exchange system 10 through the second heat exchanger 24. Specifically, a liquid circulation channel is formed within the second circuit 23, which is mainly used for the circulation of the heat exchange medium. The second heat exchanger 24 is mainly used to exchange heat between the heat exchange medium in the first sub-heat exchange system 10 and the heat exchange medium in the second circuit 23, thereby reducing the temperature of the heat exchange medium in the first sub-heat exchange system 10, thereby further reducing the temperature of the first motor 11.

[0078] According to some embodiments of the present invention, Figure 1 As shown, the second sub-heat exchange system 20 further includes a second pump 25 and a drive motor 21, both of which are connected in series to the second circuit 23. The drive motor 21 is primarily used to provide driving force for the vehicle, and the second pump 25 is primarily used to provide power for the circulation of the heat exchange medium in the second circuit 23 to achieve heat exchange for the drive motor 21.

[0079] According to some embodiments of the present invention, Figure 1As shown, the second circuit 23 includes: a second main path 231, a first bypass 232 and a second bypass 233, the first bypass 232 and the second bypass 233 are both connected between the two ends of the second main path 231, the drive motor 21 includes: a second motor 211 and a third motor 212, the second motor 211 is connected in series to the first bypass 232, and the third motor 212 is connected in series to the second bypass 233; the second sub-heat exchange system 20 also includes: a second control component 22, the second control component 22 is a three-way proportional valve, and the second control component 22 is connected between the second main path 231 and the first bypass 232 and the second bypass 233.

[0080] It can be understood that the second motor 211 and the third motor 212 are connected in parallel, and the second control component 22 is connected between the second main path 231 and the first bypass 232 and the second bypass 233, mainly distributing the coolant flowing in the second main path 231 to the second motor 211 and the third motor 212, thereby realizing cooling of the second motor 211 and the third motor 212, thereby ensuring the normal operation of the second motor 211 and the third motor 212; at the same time, the second motor 211 and the third motor 212 are both used to provide driving force for the vehicle. Therefore, by setting the second motor 211 and the third motor 212, the driving effect of the vehicle can be further improved.

[0081] It should be noted that the opening ratio of the three-way proportional valve is adjustable, so that the opening size of the three-way valve can be controlled according to the actual flow requirements of the second motor 211 and the third motor 212, so that the cooling flow of the second motor 211 and the third motor 212 can be accurately controlled and matched, thereby reducing the power consumption of the second pump 25.

[0082] According to some embodiments of the present invention, the first sub-heat exchange system 10 is a motor liquid cooling system, and the second sub-heat exchange system 20 is a motor oil cooling system. It is understood that the heat exchange medium in the first sub-heat exchange system 10 is coolant, while the heat exchange medium in the second sub-heat exchange system 20 is cooling oil. Oil cooling systems offer a compact structure and high cooling efficiency. Therefore, by configuring the second sub-heat exchange system 20 as a motor oil cooling system, the overall thermal management system 100 can be reduced in space and its cooling efficiency improved.

[0083] It should be noted that the motor oil cooling system includes an oil-cooled motor. The oil-cooled motor generally has a suitable oil channel inside the motor. The cooling oil is directly sprayed on the stator coil, stator core and rotor core through the oil channel, and the heat generated by the motor is taken away by the cooling oil. The motor cooling efficiency is high.

[0084] Reference below Figure 2-Figure 3 A control method according to an embodiment of the second aspect of the present invention is described.

[0085] According to a second aspect of the present invention, the control method is used in the thermal management system 100 according to the first aspect of the present invention, and the control method includes:

[0086] The operating parameters of the first motor 11 are obtained; specifically, the operating parameters may be temperature parameters, power parameters, etc.

[0087] Confirm that the operating parameter reaches the preset parameter; for example, the operating parameter may be a temperature parameter. When the temperature parameter reaches the preset temperature, confirm that the operating parameter reaches the preset parameter, wherein the preset temperature may be a safe temperature.

[0088] The first control element 15 is controlled to enable the first branch 12 and the second branch 13 to exchange heat with the first motor 11 , or to enable the second branch 13 to exchange heat with the first motor 11 .

[0089] It will be appreciated that in some specific embodiments, when the operating parameters of the first motor 11 reach preset parameters, the thermal management system 100 can control the first control element 15 to cause the first branch 12 and the second branch 13 to exchange heat with the first motor 11. In other specific embodiments, when the operating parameters of the first motor 11 reach preset parameters, the thermal management system 100 can control the first control element 15 to cause the second branch 13 to exchange heat with the first motor 11. When the operating parameters of the first motor 11 do not reach the preset parameters, the thermal management system 100 can control the first control element 15 to cause the first branch 12 to exchange heat with the first motor 11.

[0090] When the first branch 12 and the second branch 13 exchange heat with the first motor 11, or when the second branch 13 exchanges heat with the first motor 11, the first radiator 14 participates in the heat exchange with the first motor 11, thereby further improving the cooling effect of the first sub-heat exchange system 10. When the first branch 12 exchanges heat with the first motor 11, the first radiator 14 does not participate in the heat exchange with the first motor 11, thereby reducing the energy consumption of the entire first heat exchange system 1.

[0091] For example Figure 1 As shown, the first motor 11 is connected in series to the first main road 16, the first radiator 14 is connected in series to the second branch 13, and the first control component 15 is connected between the first branch 12, the second branch 13 and the first main road 16. When the operating parameters of the first motor 11 reach the preset parameters, the first control component 15 controls the first main road 16 to be connected to the first branch 12 and the second branch 13, or the first control component 15 controls the first main road 16 to be connected to the second branch 13, and the first branch 12 is disconnected from the first main road 16; when the operating parameters of the first motor 11 do not reach the preset parameters, the first control component 15 controls the first main road 16 to be connected to the first branch 12, and the first main road 16 is disconnected from the second branch 13.

[0092] According to the control method of the present invention, when it is confirmed that the operating parameters of the first motor 11 have reached the preset parameters, the first control component 15 is controlled to enable the first branch 12 and the second branch 13 to exchange heat with the first motor 11, or to enable the second branch 13 to exchange heat with the first motor 11, so that the first radiator 14 dissipates heat and cools down the heat exchange medium in the first sub-heat exchange system 10 only when the operating parameters of the first motor 11 have reached the preset parameters. In this way, the energy consumption of the thermal management system 100 can be reduced while ensuring the operating reliability of the first motor 11.

[0093] According to some embodiments of the present invention, the operating parameters include: temperature, power, and mechanical power of the first motor 11. It should be noted that the temperature, power, and mechanical power of the first motor 11 are actual parameters obtained during operation.

[0094] Among them, temperature mainly reflects the thermal state of the motor during operation. Obtaining the actual temperature of the motor can help evaluate the efficiency of its cooling system and whether the motor is in an overloaded or abnormal working state; power refers to the electric power input to the motor, which mainly reflects the motor's ability to obtain energy from the power supply. Actual monitoring of the motor's electric power can understand the motor's load conditions and its energy efficiency performance; mechanical power refers to the mechanical energy output by the motor, that is, the power of the motor actually doing work externally through the shaft end. Among them, by monitoring the mechanical power output of the motor, the working efficiency of the motor can be judged, and then the working state of the motor can be judged.

[0095] It should be noted that the temperature is monitored by a temperature sensor embedded in the motor stator slot; the motor power is calculated using the actual motor electronic control voltage and bus current; and the motor mechanical power is calculated from the speed and torque signals in the vehicle MCU (Microcontroller Unit).

[0096] According to some embodiments of the present invention, the operating parameter includes temperature, and confirming that the operating parameter reaches a preset parameter includes: confirming that the temperature of the first motor 11 is greater than or equal to the preset temperature.

[0097] It can be understood that this embodiment determines whether to use the first radiator 14 for heat dissipation based on whether the temperature exceeds the preset temperature. Among them, temperature is more intuitive than power and mechanical power. Therefore, confirming that the operating parameters reach the preset parameters includes: confirming that the temperature of the first motor 11 is greater than or equal to the preset temperature, which can make the control method more concise and clear, thereby reducing the probability of judgment errors, thereby improving the operating safety of the first motor 11.

[0098] According to some embodiments of the present invention, the preset temperature is 100° C.-120° C. The preset temperature is the upper limit of the safe operating temperature. Therefore, setting the preset temperature to 100° C.-120° C. can prevent the preset temperature from being too high, which may lead to failure to ensure safe operation of the first motor 11. At the same time, it can also effectively prevent the preset temperature from being too low, which may cause the first radiator 14 to participate in cooling when the motor is operating at a low temperature, thereby causing high energy consumption of the cooling system.

[0099] According to some embodiments of the present invention, the control method further includes:

[0100] Obtaining operating parameters of the second motor 211 and the third motor 212;

[0101] Confirming that the operating parameters of at least one of the first motor 11, the second motor 211, and the third motor 212 reach preset parameters;

[0102] The first control element 15 is controlled to enable the first branch 12 and the second branch 13 to exchange heat with the first motor 11 , or to enable the second branch 13 to exchange heat with the first motor 11 .

[0103] Specifically, when the temperature of any one of the three motors exceeds the corresponding preset temperature, the control system will determine that it needs to be cooled, thereby controlling the first control component 15 to connect the first main path 16 and the second branch 13, and the first radiator 14 to cool the coolant in the second branch 13, so that the overall temperature of the heat exchange medium in the first sub-heat exchange system 10 drops, thereby starting to cool the three motors; and when the temperatures of the three motors do not exceed the corresponding preset temperatures, the control system determines that the operating temperatures of the first motor 11, the second motor 211 and the third motor 212 are all within a safe range, thereby controlling the first control component 15 to disconnect the second branch 13 and the first main path 16, and connect the first main path 16 and the first branch 12, so that the first sub-heat exchange system 10 only exchanges heat with the second heat exchange system 2, and the first radiator 14 no longer participates in the heat exchange work, thereby reducing the energy consumption of the cooling system.

[0104] It should be noted that the preset temperatures of the first motor 11 , the second motor 211 and the third motor 212 may be the same or different.

[0105] According to some embodiments of the present invention, the control method also includes: obtaining the actual cooling flow requirements of the first motor 11, the second motor 211 and the third motor 212; and adjusting the flow rate of the heat exchange medium in the first sub-heat exchange system 10 according to the cooling flow requirements of the first motor 11, the second motor 211 and the third motor 212.

[0106] It is understandable that because heat is exchanged between the first sub-heat exchange system 10 and the second sub-heat exchange system 20 via the second heat exchanger 24, when the second motor 211 and the third motor 212 are operating, the second sub-heat exchange system 20 heats the first sub-heat exchange system 10, thereby causing the cooling flow demand in the first sub-heat exchange system 10 to be greater than the actual cooling flow demand of the first motor 11. Therefore, the flow rate of the heat exchange medium in the first sub-heat exchange system 10 needs to be adjusted in combination with the cooling flow demand of the first motor 11, the second motor 211, and the third motor 212, so that the flow rate of the heat exchange medium in the first sub-heat exchange system 10 is more adapted to the actual cooling flow demand of the first motor 11, the second motor 211, and the third motor 212, thereby reducing the cooling load without increasing additional energy consumption.

[0107] According to some embodiments of the present invention, the control method further includes:

[0108] Obtaining actual cooling flow requirements of the first motor 11 , the second motor 211 , and the third motor 212 ;

[0109] The flow rate of the heat exchange medium required in the second circuit 23 is adjusted according to the cooling flow rate requirements of the second motor 211 and the third motor 212 .

[0110] It can be understood that the second motor 211 and the third motor 212 are connected in parallel in the second circuit 23, wherein the first sub-heat exchange system 10 is a motor liquid cooling system, and the second sub-heat exchange system 20 is a motor oil cooling system. Therefore, the second circuit 23 contains cooling oil, that is, the second motor 211 and the third motor 212 are both cooled by oil cooling. It should be noted that after the second motor 211 and the third motor 212 exchange heat through the oil cooling system, the oil cooling system exchanges heat with the outside through the liquid cooling system. Therefore, the flow rate of the heat exchange medium required in the second circuit 23 is only related to the cooling flow rate requirements of the second motor 211 and the third motor 212. Therefore, the flow rate of the heat exchange medium required in the second circuit 23 can be adjusted only according to the cooling flow rate requirements of the second motor 211 and the third motor 212, so that the flow rate of the oil required in the second circuit 23 is more adapted to the actual cooling flow rate requirements of the second motor 211 and the third motor 212, thereby reducing the cooling load without increasing additional energy consumption.

[0111] According to some embodiments of the present invention, obtaining actual cooling flow requirements of the first motor 11 , the second motor 211 , and the third motor 212 includes:

[0112] Obtain a flow relationship diagram of the heat generation power, temperature, and cooling flow requirements of the first motor 11, the second motor 211, and the third motor 212;

[0113] Obtaining the heat generation power and temperature of the first motor 11 , the second motor 211 , and the third motor 212 ;

[0114] According to the flow relationship diagram, heat generation power and temperature, the actual cooling flow requirements of the first motor 11, the second motor 211 and the third motor 212 are obtained.

[0115] It should be noted that the flow relationship diagram is obtained through experiments and input into the control system in advance. When the vehicle is running, the control system will collect the actual temperature and actual heat generation power of each motor. When the control system determines whether the actual temperature of any of the three motors exceeds the corresponding preset temperature, the control system will extract the corresponding flow from the flow relationship diagram based on the actual temperature and actual heat generation power. This allows the heat exchange system to respond to the cooling needs of the motor faster and more accurately.

[0116] It should be further explained that the heat generation power of the motor is the difference between the motor power and the motor mechanical power.

[0117] According to some embodiments of the present invention, adjusting the flow rate of the heat exchange medium in the first heat exchange sub-system 10 includes adjusting the rotation speed of the first pump 17 .

[0118] Specifically, the flow rate can be precisely controlled by adjusting the rotational speed of the motor. Thus, the flow rate of the heat exchange medium in the first sub-heat exchange system 10 can be regulated by adjusting the rotational speed of the first pump 17 .

[0119] According to some embodiments of the present invention, adjusting the flow rate of the heat exchange medium required in the second loop 23 includes adjusting the rotation speed of the second pump 25 and / or adjusting the opening of the second control element 22 .

[0120] Specifically, the flow rate can be precisely controlled by adjusting the speed of the motor. Thus, the flow rate of the heat exchange medium required in the second circuit 23 can be adjusted by adjusting the speed of the second pump 25. Since the second motor 211 and the third motor 212 are connected in parallel, and in actual working conditions, the operating conditions of the second motor 211 and the third motor 212 are different, and thus the cooling flow rate requirements may be different, the flow rate of the heat exchange medium entering the second motor 211 and the third motor 212 can be controlled by adjusting the opening of the second control element 22, thereby better achieving cooling of the second motor 211 and the third motor 212.

[0121] It should be noted that the first sub-heat exchange system 10 is a motor liquid cooling system, and the second sub-heat exchange system 20 is a motor oil cooling system. Therefore, the heat exchange medium in the first sub-heat exchange system 10 is coolant, and the heat exchange medium in the second sub-heat exchange system 20 is cooling oil.

[0122] Since the cooling oil in the second circuit 23 can exchange heat with the coolant in the first sub-heat exchange system through the second heat exchanger 24, the speed of the first pump 17 needs to be adjusted in combination with the cooling flow requirements of the first motor 11, the second motor 211 and the third motor 212. For example, the flow required by the first motor 11 is L1, the flow required by the second motor 211 is L2, and the flow required by the third motor 212 is L3. Then the speed N1 of the first pump 17 is f(L1+k(L2+L3)), where f is the relationship between the speed and the flow, and k is the flow conversion coefficient, which is related to the heat exchange efficiency of the second heat exchanger 24 and the physical properties of the cooling oil and the coolant.

[0123] The opening degree of the second control element 22 and the speed of the second pump 25 are calculated based on the flow requirements of the second motor 211 and the third motor 212. For example, the cooling flow requirements of the second motor 211 and the third motor 212 are L2 and L3 respectively, then the opening degree of the second control element K=L2L3; the speed of the second pump 25 N2=f(L2+L3), where f is the relationship between the speed and the flow.

[0124] An electronic device according to an embodiment of the third aspect of the present invention includes: a processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the machine-readable instructions are executed by the processor, the control method according to the embodiment of the second aspect of the present invention is executed.

[0125] Specifically, the processor is the control center of the vehicle, which uses various interfaces and lines to connect various parts of the entire vehicle. It executes various functions of the vehicle and processes data by running or loading software programs and / or units stored in the memory, and calling data stored in the memory, thereby monitoring the vehicle as a whole.

[0126] The processor can be a processor CPU, a graphics processor GPU, a network processor, etc., and can implement or execute the methods, steps and logical block diagrams disclosed in the embodiments of this application.

[0127] In the embodiment of the present application, the processor in the vehicle will load instructions corresponding to one or more application processes into the memory according to the following steps, and the processor will run the application stored in the memory to implement various functions, such as:

[0128] The operating temperature of the first motor 11 is obtained, and it is confirmed that the temperature of the first motor 11 is greater than or equal to a preset temperature. The first control component 15 is controlled to connect the first main path 16 with the second branch path 13 .

[0129] According to the electronic device of the embodiment of the present invention, when the machine-readable instructions are executed by the processor, the control method according to the embodiment of the second aspect of the present invention is executed, and the first control component 15 can be better controlled according to the operating parameters of the motor, so that when each motor needs to be cooled, the first radiator 14 participates in heat dissipation and cooling. When the cooling demand of each motor is low, the first radiator 14 does not participate in heat dissipation and cooling, thereby better managing and controlling the energy consumption of the thermal management system 100.

[0130] According to the computer-readable storage medium of the fourth aspect of the embodiment of the present invention, the computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer executes the control method according to the embodiment of the second aspect of the present invention.

[0131] The computer-readable storage medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0132] According to the computer-readable storage medium of an embodiment of the present invention, when the stored control program is executed by the processor, the above-mentioned control method is implemented, and the first control component 15 can be better controlled according to the operating parameters of the motor, so that when each motor needs to be cooled, the first radiator 14 participates in heat dissipation and cooling. When the cooling demand of each motor is low, the first radiator 14 does not participate in heat dissipation and cooling, thereby better managing and controlling the energy consumption of the thermal management system 100.

[0133] According to the fifth aspect of the embodiment of the present invention, the computer program product includes a computer program, which is stored in a computer-readable storage medium; when the processor of the electronic device reads the computer program from the computer-readable storage medium, the processor executes the computer program, so that the electronic device executes the control method according to the embodiment of the second aspect of the present invention.

[0134] According to the computer program product of an embodiment of the present invention, the processor executes the computer program, so that the electronic device executes the above-mentioned control method, and can better control the first control component 15 according to the operating parameters of the motor, so that when each motor needs to be cooled, the first radiator 14 participates in heat dissipation and cooling. When the cooling demand of each motor is low, the first radiator 14 does not participate in heat dissipation and cooling, thereby better managing and controlling the energy consumption of the thermal management system 100.

[0135] The vehicle according to the sixth embodiment of the present invention includes the thermal management system 100 according to the first embodiment of the present invention or the electronic device according to the third embodiment of the present invention.

[0136] The vehicle according to the embodiment of the present invention is provided with the thermal management system 100 according to the first embodiment or the electronic device according to the third embodiment of the present invention, thereby improving the overall performance of the vehicle.

[0137] Reference below Figure 1-Figure 3 A thermal management system 100 according to an embodiment of a first aspect of the present invention is described.

[0138] Reference Figure 1 The thermal management system 100 includes: a first heat exchange system 1, wherein the first heat exchange system 1 includes: a first sub-heat exchange system 10 and a second sub-heat exchange system 20. Specifically, the first sub-heat exchange system 10 is a motor liquid cooling system for exchanging heat with the first motor 11, and the second sub-heat exchange system 20 is a motor oil cooling system for exchanging heat with the second motor 211 and the third motor 212.

[0139] Specifically, the first heat exchange sub-system 10 includes: a first main circuit 16, a first branch circuit 12, a second branch circuit 13, a first pump 17, a first radiator 14, and a first control element 15. The first pump 17 and the first motor 11 are both connected in series to the first main circuit 16, the first branch circuit 12 and the second branch circuit 13 are connected at both ends to the first main circuit 16, respectively. The first radiator 14 is connected in series to the second branch circuit 13. The first control element 15 is connected between the first main circuit 16, the first branch circuit 12, and the second branch circuit 13, and is configured to control whether the first main circuit 16 is connected to or disconnected from the first branch circuit 12 and / or the second branch circuit 13.

[0140] The second sub-heat exchange system 20 includes: a second control component 22, a second pump 25, a second heat exchanger 24, a second main path 231, a first bypass 232 and a second bypass 233, wherein the first bypass 232 and the second bypass 233 are both connected to the two ends of the second main path 231, the second heat exchanger 24 includes a first flow channel and a second flow channel for heat exchange with each other, the second pump 25 and the first flow channel are both connected in series to the second main path 231, the second flow channel is connected in series to the first main path 16, the second motor 211 is connected in series to the first bypass 232, and the third motor 212 is connected in series to the second bypass 233, the second control component 22 is a three-way proportional valve, and the second control component 22 is connected between the second main path 231 and the first bypass 232 and the second bypass 233.

[0141] The thermal management system 100 further includes a second heat exchange system 2 , which is used to exchange heat with the battery device. The second heat exchange system 2 is also used to exchange heat with the first sub-heat exchange system 10 .

[0142] Specifically, the second heat exchange system 2 includes: a first circuit 31 and a first heat exchanger 32 , wherein the first heat exchanger 32 includes a first channel and a second channel for mutual heat exchange, the first channel is serially connected to the first circuit 31 , and the second channel is serially connected to the first main path 16 .

[0143] Reference below Figure 2 A control method for the thermal management system 100 according to the first embodiment of the present invention is described.

[0144] During the operation of the vehicle, the control system obtains the actual temperature, actual power and actual mechanical power of the first motor 11, the second motor 211 and the third motor 212 in real time, and determines whether the actual temperature of any one of the three motors exceeds the corresponding preset temperature based on the actual temperature of each motor. If the actual temperature of one of the three motors exceeds the corresponding preset temperature, the control system determines that it needs to be cooled, and the control system immediately controls the first control component 15 to connect the second branch 13 and the first main road 16, so that the first radiator 14 participates in the heat exchange work; at the same time, according to the flow relationship diagram, the actual heat generation power and the actual temperature, the actual cooling flow requirements of the first motor 11, the second motor 211 and the third motor 212 are obtained, and then the speed of the first pump 17 is adjusted according to the cooling flow requirements of the first motor 11, the second motor 211 and the third motor 212, and the speed of the second pump 25 is adjusted according to the cooling flow requirements of the second motor 211 and the third motor 212.

[0145] If the actual temperatures of the three motors do not exceed the corresponding preset temperatures, the control system will determine that the operating temperatures of the first motor 11, the second motor 211 and the third motor 212 are all within a safe range, thereby controlling the first control component 15 to disconnect the second branch 13 from the first main road 16, and connect the first main road 16 and the first branch 12, so that the first radiator 14 does not participate in the work, and the first sub-heat exchange system 10 only exchanges heat with the second heat exchange system 2 and the second sub-heat exchange system 20.

[0146] According to the thermal management system 100 of an embodiment of the present invention, by providing the first control component 15, the thermal management system 100 can ensure the cooling effect of the first motor 11 while also preventing the first radiator 14 from participating in heat exchange when the cooling demand of the first motor 11 is low, thereby reducing the energy consumption of the cooling system.

[0147] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0148] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0149] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0150] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0151] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A thermal management system (100), characterized in that: include: A first heat exchange system (1), wherein the first heat exchange system (1) comprises a first sub-heat exchange system (10) for exchanging heat for a first motor (11), wherein the first sub-heat exchange system (10) comprises: First branch (12); a second branch (13), wherein the second branch (13) is connected in series with a first radiator (14); a first control member (15), the first control member (15) being connected to the first branch (12) and the second branch (13); The thermal management system (100) is configured to control the first control element (15) so that the first branch (12) and / or the second branch (13) exchange heat with the first motor (11).

2. The thermal management system (100) according to claim 1, characterized in that The first branch (12) and the second branch (13) are connected in parallel.

3. The thermal management system (100) according to any one of claims 1 or 2, characterized in that: The first sub-heat exchange system (10) further includes a first main circuit (16); the first motor (11) is arranged on the first main circuit (16); the first control element (15) is connected to the first main circuit (16); and the first control element (15) is configured to control the connection or disconnection of the first main circuit (16) with the first branch circuit (12) and / or the second branch circuit (13).

4. The thermal management system (100) according to claim 3, characterized in that The first control component (15) is a three-way valve.

5. The thermal management system (100) according to claim 1, characterized in that Also includes: A second heat exchange system (2), wherein the second heat exchange system (2) exchanges heat with the first sub-heat exchange system (10).

6. The thermal management system (100) according to claim 5, characterized in that The second heat exchange system (2) comprises: a first circuit (31) and a first heat exchanger (32); the first circuit (31) exchanges heat with the first sub-heat exchange system (10) through the first heat exchanger (32).

7. The thermal management system (100) according to claim 5, characterized in that The second heat exchange system (2) is used for exchanging heat with the battery device.

8. The thermal management system (100) according to claim 3, characterized in that The first sub-heat exchange system (10) further includes: a first pump (17), which is connected in series to the first main path (16) and is used to drive the heat exchange medium in the first sub-heat exchange system (10) to circulate.

9. The thermal management system (100) according to claim 1, characterized in that The first heat exchange system (1) further includes a second sub-heat exchange system (20), wherein the second sub-heat exchange system (20) is configured to exchange heat with the first sub-heat exchange system (10).

10. The thermal management system (100) according to claim 9, characterized in that The second sub-heat exchange system (20) comprises: a second circuit (23) and a second heat exchanger (24); the second circuit (23) exchanges heat with the first sub-heat exchange system (10) through the second heat exchanger (24).

11. The thermal management system (100) according to claim 10, characterized in that The second sub-heat exchange system (20) further includes: a second pump (25) and a drive motor (21), and the second pump (25) and the drive motor (21) are both connected in series to the second circuit (23).

12. The thermal management system (100) according to claim 11, characterized in that The second circuit (23) includes: a second main circuit (231), a first bypass circuit (232) and a second bypass circuit (233), wherein the first bypass circuit (232) and the second bypass circuit (233) are both connected between two ends of the second main circuit (231). The driving motor (21) includes: a second motor (211) and a third motor (212), wherein the second motor (211) is connected in series to the first bypass (232), and the third motor (212) is connected in series to the second bypass (233); The second sub-heat exchange system (20) further includes: a second control element (22), the second control element (22) being a three-way proportional valve, the second control element (22) being connected between the second main path (231) and the first bypass path (232) and the second bypass path (233).

13. The thermal management system (100) according to claim 9, characterized in that The first sub-heat exchange system (10) is a motor liquid cooling system, and the second sub-heat exchange system (20) is a motor oil cooling system.

14. A control method, characterized in that: The control method is used for a thermal management system (100) according to any one of claims 1 to 13, the control method comprising: Obtaining operating parameters of the first motor (11); Confirming that the operating parameters reach the preset parameters; The first control element (15) is controlled to enable the first branch (12) and the second branch (13) to exchange heat with the first motor (11), or to enable the second branch (13) to exchange heat with the first motor (11).

15. The control method according to claim 14, characterized in that: The operating parameters include: temperature, power and mechanical power of the first motor (11).

16. The control method according to claim 14, characterized in that: The operating parameter includes temperature, and confirming that the operating parameter reaches the preset parameter includes: Confirm that the temperature of the first motor (11) is greater than or equal to a preset temperature.

17. The control method according to claim 16, characterized in that: The preset temperature is 100°C-120°C.

18. The control method according to claim 14, characterized in that: The control method further includes: Obtaining operating parameters of the second motor (211) and the third motor (212); confirming that the operating parameters of at least one of the first motor (11), the second motor (211), and the third motor (212) reach the preset parameters; The first control element (15) is controlled to enable the first branch (12) and the second branch (13) to exchange heat with the first motor (11), or to enable the second branch (13) to exchange heat with the first motor (11).

19. The control method according to claim 18, characterized in that: The control method further includes: Obtaining actual cooling flow requirements of the first motor (11), the second motor (211), and the third motor (212); The flow rate of the heat exchange medium in the first sub-heat exchange system (10) is adjusted according to the cooling flow rate requirements of the first motor (11), the second motor (211) and the third motor (212).

20. The control method according to claim 18, characterized in that: The control method further includes: Obtaining actual cooling flow requirements of the first motor (11), the second motor (211), and the third motor (212); The flow rate of the heat exchange medium required in the second circuit (23) is adjusted according to the cooling flow rate requirements of the second motor (211) and the third motor (212).

21. The control method according to any one of claims 19 or 20, characterized in that: Obtaining actual cooling flow requirements of the first motor (11), the second motor (211), and the third motor (212), including: Obtaining a flow relationship diagram of heat generation power, temperature, and cooling flow requirements of the first motor (11), the second motor (211), and the third motor (212); Obtaining heat generation power and temperature of the first motor (11), the second motor (211), and the third motor (212); According to the flow relationship diagram, the heat generation power and the temperature, actual cooling flow requirements of the first motor (11), the second motor (211) and the third motor (212) are obtained.

22. The control method according to claim 19, characterized in that: The adjusting of the flow rate of the heat exchange medium in the first sub-heat exchange system (10) includes adjusting the rotation speed of the first pump (17).

23. The control method according to claim 20, characterized in that: The adjustment of the required flow rate of the heat exchange medium in the second circuit (23) includes: adjusting the rotation speed of the second pump (25) and / or adjusting the opening of the second control element (22).

24. An electronic device, characterized in that: include: A processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the machine-readable instructions are executed by the processor, the control method according to any one of claims 14 to 23 is executed.

25. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is enabled to execute the control method according to any one of claims 14 to 23.

26. A computer program product, characterized in that The invention comprises a computer program stored in a computer-readable storage medium; when a processor of an electronic device reads the computer program from the computer-readable storage medium, the processor executes the computer program, so that the electronic device executes the control method described in any one of claims 14 to 23.

27. A vehicle, characterized in that: The invention comprises a thermal management system (100) according to any one of claims 1 to 13 or an electronic device according to claim 24.

Images