Automobile thermal management system, control method and automobile

Abstract

The application belongs to the technical field of vehicle thermal management, and particularly relates to an automobile thermal management system, a control method and an automobile. The range-extending vehicle thermal management system comprises an air conditioning system, a battery circuit, a motor electric drive circuit, a multi-pass water valve and a front-end heat dissipation group. The air conditioning system comprises a heat exchanger, and the air conditioning system and the battery circuit are connected through the heat exchanger. The automobile thermal management system selectively exchanges heat between the air conditioning system and the battery circuit according to the ambient temperature, the battery temperature and / or the motor electric drive temperature, selectively exchanges heat between the battery circuit and the motor electric drive circuit through the multi-pass water valve, and selectively reduces the temperature of the electric drive cooling liquid in the motor electric drive circuit through the front-end heat dissipation group. The application solves the problems of slow heat dissipation of the automobile power system and low strong cooling capacity.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicle thermal management, and particularly relates to an automobile thermal management system, a control method and an automobile. BACKGROUND

[0002] With the development of electric vehicle technology, electric vehicles begin to present various driving modes that fit user experience, such as comfortable driving, economic mode, super energy-saving mode, and so on, which also includes a strong cooling mode. The strong cooling mode usually means higher acceleration and higher speed, which also brings stronger cooling demand of the power system.

[0003] In order to meet this stronger cooling demand, the current technical implementation path mainly includes the following aspects: increasing the front-end fan power to increase the front-end air intake to strengthen heat dissipation, increasing the power of the motor electric drive water pump and the battery water pump to increase the cooling liquid flow to strengthen heat dissipation, increasing the area and number of front-end radiators to strengthen heat exchange, and increasing the front bumper grille opening area to increase the front-end air intake to strengthen heat dissipation.

[0004] However, these methods have some limitations. First, these improvement measures will greatly increase the overall vehicle cost. Second, increasing the number of radiators will increase the difficulty of overall vehicle layout. In addition, increasing the front bumper grille opening area will not only affect the aesthetic appearance of the vehicle, but also increase the wind resistance, thereby affecting the overall performance of the vehicle.

[0005] Therefore, while ensuring the performance of the electric vehicle, how to effectively solve the heat dissipation problem of the power system, while controlling the cost, maintaining the appearance and aerodynamic performance of the vehicle, has become an important challenge in the design of the electric vehicle thermal management system. SUMMARY

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide an automobile thermal management system, a control method and an automobile, which can solve the problems of slow heat dissipation of the automobile power system and low strong cooling capacity.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions.

[0008] The present application provides an automobile thermal management system in the first aspect, comprising:

[0009] An air conditioning system, a battery circuit, a motor electric drive circuit, a multi-way water valve and a front-end heat dissipation group; the air conditioning system comprises a heat exchanger, the air conditioning system and the battery circuit are connected through the heat exchanger; the front-end heat dissipation group comprises a front-end radiator and a front-end heat dissipation fan, one end of the front-end radiator is connected with one interface of the multi-way water valve, and the other end is connected with the motor electric drive circuit; the cooling liquid temperature in the battery circuit is the battery cell temperature, and the cooling liquid temperature in the motor electric drive circuit is the motor electric drive temperature;

[0010] The automobile thermal management system selectively exchanges heat between the air conditioning system and the battery circuit according to the ambient temperature, the battery temperature and / or the motor electric drive temperature, and selectively exchanges heat between the battery circuit and the motor electric drive circuit through the multi-way water valve, and selectively reduces the temperature of the electric drive cooling liquid in the motor electric drive circuit through the front-end heat dissipation group.

[0011] As an optional implementation, the battery circuit comprises a battery water pump and a battery; and / or the motor electric drive circuit comprises a motor water pump and an electric drive control system; and / or the front-end heat dissipation group comprises a front-end radiator and a front-end cooling fan.

[0012] As an optional implementation, the automobile thermal management system further comprises a front-end heat dissipation fan, a check valve and / or a stop valve, one end of the check valve and the stop valve is connected with the battery circuit, and the other end is connected with the motor electric drive circuit.

[0013] As an optional implementation, the thermal management system starts a pre-cooling mode based on a preset instruction, and the pre-cooling mode comprises:

[0014] When the battery temperature is greater than a first preset battery temperature and the motor electric drive temperature is greater than a first preset motor electric drive temperature, the pre-cooling mode runs in mode one.

[0015] In the mode one: the air conditioning system works, the front-end radiator is bypassed, the front-end cooling fan runs at a maximum duty ratio, the motor water pump and the battery water pump run at a maximum duty ratio, the cooling liquid cooled by the air conditioning system flows into the electric drive control system through the interface a and the interface b of the multi-way water valve and the motor water pump, flows out and enters the battery for cooling through the interface d and the interface e of the multi-way water valve, the battery water pump and the battery, the outflowing cooling liquid enters the heat exchanger to exchange heat with the refrigerant in the air conditioning system for recycling.

[0016] As an optional implementation, the thermal management system starts a pre-cooling mode based on a preset instruction, and the pre-cooling mode comprises:

[0017] When the motor electric drive temperature is greater than a first preset motor electric drive temperature and the battery temperature is less than or equal to a first preset battery temperature, the pre-cooling mode runs in mode two.

[0018] In the mode two: the air conditioning system works, the front-end radiator is bypassed, the front-end cooling fan runs at a maximum duty ratio, the motor water pump runs at a maximum duty ratio, the battery water pump does not work, the stop valve is opened, the cooling liquid cooled by the air conditioning system flows into the electric drive control system through the check valve and the motor water pump, flows out and enters the heat exchanger through the stop valve to exchange heat with the refrigerant in the air conditioning system for recycling.

[0019] As an optional implementation, when the battery cell temperature is equal to the first preset battery cell temperature and the motor electric drive temperature is equal to the first preset motor electric drive temperature, the pre-cooling mode is switched to the strong cooling mode.

[0020] As an optional implementation, the strong cooling mode includes:

[0021] When the motor electric drive temperature is less than or equal to the battery cell temperature, the battery cell temperature is less than the first preset temperature, and the motor electric drive temperature is less than the ambient temperature, the strong cooling mode operates in mode three:

[0022] In the mode three: the air conditioning system does not work, the front end radiator is bypassed, the front end cooling fan is turned off, the motor water pump and the battery water pump operate at the maximum duty ratio, the stop valve is closed, the battery circuit forms an independent loop through the battery water pump, the interface a and the interface d of the multi-way water valve to perform battery temperature equalization, and the motor electric drive circuit forms an independent loop through the motor water pump, the interface b and the interface e of the multi-way water valve to perform motor electric drive temperature equalization.

[0023] As an optional implementation, the strong cooling mode includes:

[0024] When the battery cell temperature is less than or equal to the motor electric drive temperature, the motor electric drive temperature is less than the first preset temperature, and the motor electric drive temperature is less than the ambient temperature, the strong cooling mode operates in mode four:

[0025] In the mode four: the air conditioning system does not work, the front end radiator is bypassed, the front end cooling fan is turned off, the motor water pump and the battery water pump operate at the maximum duty ratio, the stop valve is closed, the interface a and the interface b of the multi-way water valve are connected, the interface d and the interface e are connected, and the motor electric drive circuit operates in series with the battery circuit through the multi-way water valve.

[0026] As an optional implementation, the strong cooling mode includes:

[0027] When the first preset temperature is less than or equal to the motor electric drive temperature, the motor electric drive temperature is less than the second preset temperature, and the motor electric drive temperature is less than the ambient temperature, the strong cooling mode operates in mode five:

[0028] In the mode five: the air conditioning system works, the front end radiator is bypassed, the front end cooling fan operates at the maximum duty ratio, the motor water pump and the battery water pump operate at the maximum duty ratio, the cooling liquid cooled by the air conditioning system flows into the electric drive electric control system through the interface a and the interface b of the multi-way water valve and the motor water pump and cools the electric drive electric control system, then flows out through the interface e and the interface d of the multi-way water valve, the battery water pump, enters the battery to cool the battery, and the flowing-out cooling liquid enters the heat exchanger to exchange heat with the low-temperature refrigerant for recycling.

[0029] As an optional implementation, the strong cooling mode includes:

[0030] When the first preset temperature is less than or equal to the motor electric drive temperature and the motor electric drive temperature is less than the second preset temperature and the ambient temperature is less than the motor electric drive temperature, the strong cooling mode operates in mode six:

[0031] In the mode six: the air conditioning system works, the front end radiator is communicated, the front end cooling fan runs at the maximum duty ratio, the motor water pump and the battery water pump run at the maximum duty ratio, the cooling liquid cooled by the air conditioning system flows into the electric drive electric control system through the interface a and the interface b of the multi-way water valve and the interface c and the interface d of the battery water pump to cool the electric drive electric control system, and then flows into the battery through the interface c and the interface d of the multi-way water valve and the battery water pump to cool the battery, the high-temperature cooling liquid flows into the heat exchanger to exchange heat with the low-temperature refrigerant for recycling.

[0032] As an optional implementation, the strong cooling mode includes:

[0033] When the second preset temperature is less than or equal to the motor electric drive temperature and the motor electric drive temperature is less than the ambient temperature, the strong cooling mode operates in mode seven:

[0034] In the mode seven: the air conditioning system works, the front end radiator is bypassed, the front end cooling fan runs at the maximum duty ratio, the motor water pump and the battery water pump run at the maximum duty ratio, the stop valve is opened, the cooling liquid cooled by the air conditioning system is divided into two paths, one path enters the battery through the interface a and the interface d of the multi-way water valve and the battery water pump to cool the battery, and the cooling liquid flows into the heat exchanger, the motor water pump communicates the electric drive electric control system, the interface b and the interface e of the multi-way water valve to form a circulation; the other path flows to the electric drive electric control system through the one-way valve, and the heated cooling liquid from the electric drive electric control system also flows to the heat exchanger through the stop valve.

[0035] As an optional implementation, the strong cooling mode includes:

[0036] When the second preset temperature is less than or equal to the motor electric drive temperature and the ambient temperature is less than the motor electric drive temperature, the strong cooling mode operates in mode eight:

[0037] In the mode eight: the air conditioning system works, the front end radiator is communicated, the front end cooling fan runs at the maximum duty ratio, the motor water pump and the battery water pump run at the maximum duty ratio, the stop valve is opened, the cooling liquid cooled by the air conditioning system is divided into two paths, one path enters the battery through the interface a and the interface d of the multi-way water valve and the battery water pump to cool the battery, and the cooling liquid flows into the heat exchanger, the motor water pump communicates the electric drive electric control system, the interface b and the interface c of the multi-way water valve to form a circulation; the other path flows to the electric drive electric control system through the one-way valve, and the heated cooling liquid from the electric drive electric control system also flows to the heat exchanger through the stop valve.

[0038] The second aspect of the present application provides a thermal management control method based on the automobile thermal management system of the first aspect of the present application, comprising: an air conditioning system, a battery circuit, a motor electric drive circuit, a multi-way water valve and a front-end heat dissipation group; the air conditioning system comprises a heat exchanger, the air conditioning system and the battery circuit are connected through the heat exchanger; the front-end heat dissipation group comprises a front-end heat radiator and a front-end heat dissipation fan, one end of the front-end heat radiator is connected with an interface of the multi-way water valve, and the other end is connected with the motor electric drive circuit; the temperature of the cooling liquid in the battery circuit is the temperature of the battery cell, and the temperature of the cooling liquid in the motor electric drive circuit is the temperature of the motor electric drive;

[0039] The automobile thermal management system selectively exchanges heat between the air conditioning system and the battery circuit according to the ambient temperature, the battery cell temperature and / or the motor electric drive temperature, selectively exchanges heat between the battery circuit and the motor electric drive circuit through the multi-way water valve, and selectively reduces the temperature of the electric drive cooling liquid in the motor electric drive circuit through the front-end heat dissipation group.

[0040] The third aspect of the present application provides an automobile comprising the automobile thermal management system of the first aspect of the present application.

[0041] The fourth aspect of the present application provides an electronic device comprising:

[0042] At least one processor; and at least one memory connected with the processor in communication, wherein: the memory stores program instructions executable by the processor, and the processor calling the program instructions can execute the steps of the method of the second aspect of the present application.

[0043] The fifth aspect of the present application provides a readable storage medium storing a computer program, which is executed by a processor to execute the steps of the method of the second aspect of the present application.

[0044] In summary, compared with the prior art, the present application integrates the air conditioning system, the battery circuit, the motor electric drive circuit, the multi-way water valve and the front-end heat dissipation group, realizes multi-path and multi-mode heat management. According to the real-time state of the ambient temperature, the battery cell temperature and the motor electric drive temperature, the system can intelligently select the optimal heat exchange path, such as the heat exchange between the air conditioning system and the battery circuit, the heat exchange between the battery circuit and the motor electric drive circuit through the multi-way water valve, and the reduction of the temperature of the motor electric drive circuit by the front-end heat dissipation group. This dynamic adjustment mechanism not only improves the thermal management efficiency of the whole vehicle, but also accurately meets the temperature requirements of different components under various working conditions, effectively responds to various complex environmental conditions and operating states. At the same time, this integrated thermal management system can simplify the system structure, optimize energy utilization, prolong the service life of key components, and provide strong support for improving the endurance and overall efficiency of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0046] Figure 1 The system principle diagram of an automobile thermal management system in an embodiment of the present application is shown.

[0047] Figure 2 The cooling logic diagram of an automobile thermal management system in an embodiment of the present application in a racing mode is shown.

[0048] Figure 3 The system principle diagram of an automobile thermal management system in an embodiment of the present application running in mode one is shown.

[0049] Figure 4 The system principle diagram of an automobile thermal management system in an embodiment of the present application running in mode two is shown.

[0050] Figure 5 The system principle diagram of an automobile thermal management system in an embodiment of the present application running in mode three is shown.

[0051] Figure 6 The system principle diagram of an automobile thermal management system in an embodiment of the present application running in mode four is shown.

[0052] Figure 7 The system principle diagram of an automobile thermal management system in an embodiment of the present application running in mode five is shown.

[0053] Figure 8 The system principle diagram of an automobile thermal management system in an embodiment of the present application running in mode six is shown.

[0054] Figure 9 The system principle diagram of an automobile thermal management system in an embodiment of the present application running in mode seven is shown.

[0055] Figure 10 The system principle diagram of an automobile thermal management system in an embodiment of the present application running in mode eight is shown.

[0056] Figure 11 The structural schematic diagram of an electronic device according to an embodiment of the present application is shown.

[0057] Reference signs:

[0058] 1-Battery water pump, 2-Motor water pump, 3-Battery, 4-Plate heat exchanger, 5-Air conditioning system, 6-One-way valve, 7-Electrical component system, 8-Charging system, 9-Electric drive and control system, 10-Front-end radiator, 11-Front-end cooling fan, 12-Stop valve, 13-Multi-port water valve. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application.

[0060] It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment in the following embodiments have their own emphasis; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0061] Battery systems in new energy electric vehicles typically employ refrigerant forced cooling technology, while electric drive and control systems utilize coolant cooling technology. When faced with scenarios such as racing experiences, high-temperature hill climbing, high power output, and extreme environments, vehicles require intensive cooling to dissipate heat. Specifically, in racing mode, the vehicle may need to operate at continuous high speeds or accelerate frequently, causing the powertrain to generate a large amount of heat. When the vehicle is climbing hills for extended periods in high-temperature environments, the powertrain and battery pack may face significant thermal loads. In scenarios requiring continuous high power output, such as prolonged high-speed cruising or towing heavy loads, and when the vehicle is operating in extremely high-temperature environments, the entire vehicle system may require additional cooling capacity.

[0062] In view of this, such as Figure 1 As shown, the first aspect of the present invention provides an automotive thermal management system, which comprises a battery water pump 1, a motor water pump 2, a battery 3, a heat exchanger 4, an air conditioning system 5, a one-way valve 6, an electrical component system 7, a charging system 8, an electric drive and control system 9, a front radiator 10, a front cooling fan 11, a shut-off valve 12, and a multi-way water valve 13. The heat exchanger 4 can be one of the existing heat exchangers such as a plate heat exchanger.

[0063] Specifically, the battery circuit includes the battery water pump 1 and the battery 3; the motor electric drive circuit includes the motor water pump 2 and the electric control system 9 of the electric drive, and in some application scenarios, the motor electric drive circuit further includes the electric device system 7 and the charging system 8; the front-end heat dissipation group includes the front-end heat sink 10 and the front-end heat dissipation fan 11.

[0064] The air conditioning system 5 includes a compressor, a condenser, an expansion valve and the like, which are not described in detail.

[0065] In one application scenario, the air conditioning system 5 cools the low-temperature refrigerant through the plate heat exchanger 4 and the cooling liquid, and the low-temperature cooling liquid flowing out of the plate heat exchanger 4 is the cooling liquid cooled by the refrigerant.

[0066] Specifically, please continue to refer to Figure 1 The multi-way water valve 13 is composed of an interface a, an interface b, an interface c, an interface d and an interface e, and the remaining interfaces can be connected to other components of the thermal management system, which are not described in detail. The interface a is connected to the heat exchanger 4; the interface b is connected to the motor water pump 2; the interface c is connected to the front-end heat sink 10; the interface d is connected to the battery water pump 1; and the interface e is connected to the front-end heat dissipation group 10 and the junction pipeline of the motor electric drive circuit, one end of the junction pipeline is connected to the front-end heat sink 10, and the other end is connected to the electric control system 9 of the electric drive.

[0067] In the conventional driving mode, the stop valve 12 is closed, and the multi-way water valve 13 can realize the functions of battery independent cooling, electric drive control independent cooling and battery-electric drive control series cooling by switching modes, which are not described in detail.

[0068] The air conditioning system, the battery circuit, the motor electric drive circuit, the multi-way water valve and the front-end heat sink; wherein the air conditioning system 5 includes a heat exchanger 4, the air conditioning system 5 and the battery circuit are connected through the heat exchanger 4; one end of the front-end heat sink 10 in the front-end heat dissipation group is connected to one interface of the multi-way water valve 13, and the other end is connected to the motor electric drive circuit; the temperature of the cooling liquid in the battery circuit is the temperature T EDS of the electric core, and the temperature of the cooling liquid in the motor electric drive circuit is the temperature T ESS of the motor electric drive; one end of the one-way valve 6 and the stop valve 12 is connected to the battery circuit, and the other end is connected to the motor electric drive circuit.

[0069] The automobile thermal management system is based on the ambient temperature Tamb, the motor electric drive temperature T EDS and / or the electric core temperature T ESSselectively exchanging heat between the air conditioning system and the battery circuit, and selectively exchanging heat between the battery circuit and the motor electric drive circuit through the multi-way water valve, and selectively reducing the motor electric drive temperature T in the motor electric drive circuit through the front-end heat dissipation group EDS .

[0070] The present application realizes efficient and dynamic temperature management by flexibly regulating the heat exchange between the air conditioning system, the battery circuit, the motor electric drive circuit, the multi-way water valve and the front-end heat dissipation group, intelligently selects the most suitable heat exchange path according to the ambient temperature Tamb, the motor electric drive temperature T EDS and the cell temperature T ESS , and can realize accurate temperature control under different working conditions, improve the energy utilization efficiency of the whole vehicle, and enhance the performance stability and life of each key component.

[0071] As shown in Figure 2 , in an embodiment of the present application, the heat management system starts the pre-cooling mode based on a preset instruction.

[0072] Specifically, the preset instruction includes an active instruction and a passive instruction.

[0073] For example, for the active instruction, when the vehicle perceives that the user needs to enter the strong cooling mode, such as a high-temperature climbing scene, the vehicle navigation system will automatically issue a pre-cooling instruction to the heat management system in combination with the temperature sensor, so that the user can pre-cool the vehicle body before the high-temperature climbing scene, so as to effectively cope with various high-heat load scenes and ensure that the vehicle can still maintain the best performance and reliability under extreme conditions.

[0074] For example, for the passive instruction, when the user needs to implement the strong cooling mode, such as implementing the racing mode, the user can issue the preset instruction in advance, and when the user starts racing, he can enter the racing mode as soon as possible, and before that, the pre-cooling mode needs to be started as an overmode for converting to the racing mode.

[0075] For example, in an application scenario, the user sets the racing mode use time t through the mobile phone APP or the vehicle screen, and the vehicle will combine the ambient temperature Tamb to determine to wake up the whole vehicle high pressure and start the whole vehicle heat management pre-cooling mode t1 time in advance. Among them, the higher the ambient temperature represents the more difficult pre-cooling, for example, when Tamb> 35℃, t1=60min; 25℃≤Tamb<35℃, t1=40min; Tamb<25℃, t1=25min.

[0076] When the heat management system is running in the pre-cooling mode, the heat management system is switched in combination with the monitored motor electric drive coolant temperature T EDS and the cell temperature T ESS .

[0077] As shown in Figure 2 and Figure 3 , in an embodiment of the present application, the pre-cooling mode comprises:

[0078] When the battery cell temperature is greater than the first preset battery cell temperature and the motor electric drive temperature is greater than the first preset motor electric drive temperature, the pre-cooling mode runs in mode one;

[0079] In the mode one: the air conditioning system 5 works, the front end radiator 10 is bypassed, the front end cooling fan 11 runs at the maximum duty ratio, the motor water pump 2 and the battery water pump 1 run at the maximum duty ratio, and the stop valve 12 is closed. The multi-way water valve 13 is connected between the interface a and the interface b, and the interface d and the interface e. The air conditioning system 5 cools the low-temperature refrigerant, and the low-temperature refrigerant is cooled by the plate heat exchanger 4 and the cooling liquid. The cooled low-temperature cooling liquid flows into the electrical device system 7, the charging system 8, and the electric drive electronic control system 9 in sequence through the interface a and the interface b of the multi-way water valve 13, the motor water pump 2, and the battery water pump 1, and cools them. The high-temperature cooling liquid flows out of the battery 3 through the interface e, d of the multi-way water valve 13, the battery water pump 1, and the plate heat exchanger 4, and exchanges heat with the low-temperature refrigerant to be cooled. At this time, the front end radiator 10 is bypassed to prevent the low-temperature cooling liquid from heating the motor electric drive and the battery from the environment.

[0080] Specifically, according to actual experience, the motor electric drive temperature is generally lower than the battery cell temperature. In the present application, the first preset motor electric drive temperature is lower than the first preset battery cell temperature. For example, the first preset motor electric drive temperature can be 6℃, and the first preset battery cell temperature can be 13℃.

[0081] Further, when the outlet pressure of the one-way valve 6 is less than the inlet pressure, it is in an open state, and is connected in parallel with the interface a and the interface b of the multi-way water valve 13; when the outlet pressure of the one-way valve 6 is greater than the inlet pressure, it is in a closed state.

[0082] As shown in Figure 2 and Figure 4 , in an embodiment of the present application, the pre-cooling mode further comprises:

[0083] When the motor electric drive temperature is greater than the first preset motor electric drive temperature and the battery cell temperature is less than or equal to the first preset battery cell temperature, the pre-cooling mode runs in mode two;

[0084] In the mode two: the air conditioning system works, the front radiator is bypassed, the front cooling fan runs at the maximum duty ratio, the motor water pump 2 runs at the maximum duty ratio, the battery water pump 1 does not work, and the stop valve 12 is opened. The air conditioning system 5 cools the low-temperature refrigerant through the plate heat exchanger 4 and the cooling liquid, the cooled low-temperature cooling liquid flows into the electrical device system 7, the charging system 8 and the electric drive control system 9 in turn through the one-way valve 6 and the motor water pump 2, and cools them, and the high-temperature cooling liquid flows out and enters the plate heat exchanger 4 through the second stop valve 12 to exchange heat with the low-temperature refrigerant and circulate again.

[0085] Here, through the mode one, the synchronous cooling of the battery and the electric drive control system is realized, and unnecessary heat absorption is avoided by bypassing the front radiator. Through the mode two, the electric drive system is concentratedly cooled, and the cooling efficiency is improved. Through the flexible switching of the two modes, the application can optimize the cooling resource allocation according to the real-time temperature requirements of different components, and effectively improve the precooling efficiency.

[0086] In an embodiment of the application, when the battery cell temperature is equal to the first preset battery cell temperature and the motor electric drive temperature is equal to the first preset motor electric drive temperature, the precooling mode is switched to the strong cooling mode.

[0087] As a supplementary scenario, for example, in a racing mode, when the user gets on the vehicle as scheduled and enables the racing mode, the battery cell temperature is equal to the first preset battery cell temperature and the motor electric drive temperature is equal to the first preset motor electric drive temperature, the precooling mode is switched to the strong cooling mode; if the user does not get on the vehicle as scheduled to enable the racing mode, and the motor electric drive temperature exceeds the reasonable preset motor electric drive temperature, for example, 9℃, or the battery cell temperature exceeds the reasonable preset battery cell temperature, for example, 18℃, the precooling mode is switched back.

[0088] As shown in Figure 2 and Figure 5 In an embodiment of the application, the strong cooling mode includes:

[0089] When the motor electric drive temperature is less than or equal to the battery cell temperature, the battery cell temperature is less than the first preset temperature, and the motor electric drive temperature is less than the ambient temperature, that is, T EDS ≤T ESS < the first preset temperature and T EDS < Tamb, for example, the first preset temperature can be 20℃, the strong cooling mode runs in mode three:

[0090] In the third mode: the air conditioning system does not work, the front end radiator is bypassed, the front end cooling fan is turned off, the motor water pump 2 and the battery water pump 1 are operated at the maximum duty ratio, and the stop valve 12 is closed. The multi-way water valve 13 is connected to interface a and interface d, and connected to interface b and interface e. The battery circuit forms an independent circuit through the battery water pump 1, the multi-way water valve 13 interface a and interface d to perform battery temperature equalization. The motor electric drive circuit forms an independent circuit through the motor water pump 2, the multi-way water valve 13 interface b and interface e to perform motor electric drive temperature equalization. At this time, the front end radiator 10 is bypassed to prevent low-temperature coolant from absorbing heat from the environment to heat the motor electric drive and the battery. When the outlet pressure of the one-way valve 6 is less than the inlet pressure, the one-way valve 6 is in an open state, and a part of the coolant flowing out of the plate heat exchanger 4 enters the motor electric drive cooling system, and finally the flow balance is formed; when the outlet pressure of the one-way valve 6 is greater than the inlet pressure, the one-way valve 6 is in a closed state.

[0091] As shown in Figure 2 and Figure 6 , in an embodiment of the present application, the strong cooling mode includes:

[0092] When the battery temperature is less than or equal to the motor electric drive temperature, the motor electric drive temperature is less than the first preset temperature, and the motor electric drive temperature is less than the ambient temperature, i.e. T ESS ≤T EDS < the first preset temperature and T EDS < Tamb, the strong cooling mode operates in mode four: in the fourth mode: the air conditioning system does not work, the front end radiator is bypassed, the front end cooling fan is turned off, the motor water pump 2 and the battery water pump 1 are operated at the maximum duty ratio, and the stop valve 12 is closed. The multi-way water valve 13 is connected to interface a and interface b, and connected to interface d and interface e. At this time, the motor electric drive coolant temperature is higher than the battery temperature, which can be connected in series through the multi-way water valve 13. At this time, the front end radiator 10 is bypassed to prevent low-temperature coolant from absorbing heat from the environment to heat the motor electric drive and the battery. When the outlet pressure of the one-way valve 6 is less than the inlet pressure, the one-way valve 6 is in an open state, and is connected in parallel with the multi-way water valve 13 interface a and interface b; when the outlet pressure of the one-way valve 6 is greater than the inlet pressure, the one-way valve 6 is in a closed state.

[0093] As shown in Figure 2 and Figure 7 , in an embodiment of the present application, the strong cooling mode includes:

[0094] When the first preset temperature is less than or equal to the motor electric drive temperature, the motor electric drive temperature is less than the second preset temperature, and the motor electric drive temperature is less than the ambient temperature, i.e. the first preset temperature ≤T EDS < the second preset temperature and T EDS < Tamb, for example, the first preset temperature can be 20℃, and the second preset temperature can be 30℃, the strong cooling mode operates in mode five:

[0095] In the mode five: air conditioning system works, the front end radiator is bypassed, the front end cooling fan runs at maximum duty ratio, the motor water pump 2 and the battery water pump 1 run at maximum duty ratio, the stop valve 12 is closed. The multi-way water valve 13 is connected with the interface a and the interface b, and the interface d and the interface e. The air conditioning system 5 cools the low-temperature refrigerant through the plate heat exchanger 4 and the cooling liquid thereof, the cooled low-temperature cooling liquid flows into the electrical device system 7, the charging system 8 and the electric drive electronic control system 9 in sequence through the interface a and the interface b of the multi-way water valve 13, the motor water pump 2 and the battery water pump 1, and cools them, and then flows out through the interface e and the interface d of the multi-way water valve 13, the battery water pump 1 and the battery 3, and cools the battery, and the high-temperature cooling liquid flows into the plate heat exchanger 4 and exchanges heat with the low-temperature refrigerant to circulate again. At this time, the front end radiator 10 is bypassed to prevent the low-temperature cooling liquid from absorbing heat from the environment to heat the motor electric drive and the battery. When the outlet pressure of the one-way valve 6 is less than the inlet pressure, the one-way valve 6 is in an open state and is connected with the interface a and the interface b of the multi-way water valve 13 in parallel; when the outlet pressure of the one-way valve 6 is greater than the inlet pressure, the one-way valve 6 is in a closed state.

[0096] As shown in Figure 2 and Figure 8 , in an embodiment of the present application, the strong cooling mode comprises:

[0097] When the first preset temperature is less than or equal to the motor electric drive temperature, the motor electric drive temperature is less than the second preset temperature, and the ambient temperature is less than the motor electric drive temperature, that is, the first preset temperature ≤ T EDS < the second preset temperature and Tamb<T EDS , the strong cooling mode runs in mode six:

[0098] In the mode six: the air conditioning system works, the front end radiator is connected, the front end cooling fan runs at maximum duty ratio, the motor water pump 2 and the battery water pump 1 run at maximum duty ratio, and the stop valve 12 is closed. The multi-way water valve 13 is connected with the interface a and the interface b, and the interface c and the interface d. The air conditioning system 5 cools the low-temperature refrigerant through the plate heat exchanger 4 and the cooling liquid thereof, the cooled low-temperature cooling liquid flows into the electrical device system 7, the charging system 8 and the electric drive electronic control system 9 in sequence through the interface a and the interface b of the multi-way water valve 13, the motor water pump 2 and the battery water pump 1, and cools them, and then flows out through the interface c and the interface d of the multi-way water valve 13, the battery water pump 1 and the battery 3, and cools the battery, and the high-temperature cooling liquid flows into the plate heat exchanger 4 and exchanges heat with the low-temperature refrigerant to circulate again. At this time, the front end radiator 10 is connected to allow the cooling liquid to dissipate heat to the environment. When the outlet pressure of the one-way valve 6 is less than the inlet pressure, the one-way valve 6 is in an open state and is connected with the interface a and the interface b of the multi-way water valve 13 in parallel; when the outlet pressure of the one-way valve 6 is greater than the inlet pressure, the one-way valve 6 is in a closed state.

[0099] AsFigure 2 and Figure 9 As shown in FIG. 1 and FIG. 2, in an embodiment of the present application, the strong cooling mode comprises:

[0100] When the second preset temperature is less than or equal to the motor electric drive temperature and the motor electric drive temperature is less than the ambient temperature, i.e., the second preset temperature ≤T EDS <Tamb, the strong cooling mode runs in mode seven:

[0101] In the mode seven: the air conditioning system works, the front end radiator is bypassed, the front end cooling fan runs at the maximum duty ratio, the motor water pump 2 and the battery water pump 1 run at the maximum duty ratio, the stop valve 12 is opened. The multi-way water valve 13 is connected to interface a and interface d, and connected to interface b and interface e. The air conditioning system 5 cools the low-temperature refrigerant and the low-temperature coolant in the plate heat exchanger 4, and the cooled low-temperature coolant is divided into two paths, one path enters the battery 3 through the multi-way water valve 13 interface a and interface d and the battery water pump 1 to cool the battery, and the outflowing battery-heated coolant enters the plate heat exchanger 4. The motor water pump 2 forms a circulating system with the electric drive electronic control system, the multi-way water valve 13 interface b and interface e. The low-temperature coolant cooled by the refrigerant flowing out of the plate heat exchanger 4 will have a part of the water diverted through the one-way valve 6 to the electric drive electronic control system to further reduce the temperature of the electric drive electronic control system coolant to strengthen cooling. Similarly, the heated coolant flowing out of the electric drive electronic control system will have a part of the water diverted to the plate heat exchanger 4 inlet through the stop valve 12. At this time, the front end radiator 10 is bypassed to prevent the low-temperature coolant from absorbing heat from the environment to heat the motor electric drive and the battery.

[0102] As shown in FIG. 1 and FIG. 2, in an embodiment of the present application, the strong cooling mode comprises: Figure 2 and Figure 10 As shown in FIG. 1 and FIG. 2, in an embodiment of the present application, the strong cooling mode comprises:

[0103] When the second preset temperature is less than or equal to the motor electric drive temperature and the motor electric drive temperature is less than the ambient temperature, i.e., the second preset temperature ≤T EDS and Tamb < T EDS , the strong cooling mode runs in mode eight:

[0104] In the eighth mode, the air conditioning system is working, the front radiator is connected, the front cooling fan is running at maximum duty cycle, the motor water pump 2 and the battery water pump 1 are running at maximum duty cycle, and the stop valve 12 is open. The multi-way water valve 13 is connected to interface a and interface d, and interface b and interface c. The air conditioning system 5 cools the low-temperature refrigerant through the plate heat exchanger 4 and cools the coolant. The cooled low-temperature coolant is divided into two paths. One path passes through the multi-way water valve 13 interface a and interface d, the battery water pump 1, and enters the battery 3 to cool it. The battery-heated coolant flows into the plate heat exchanger 4. The motor water pump 2 connects the electric drive control system, the multi-way water valve 13 interface b and interface c to form a circulating system. The low-temperature coolant cooled by the refrigerant flowing out of the plate heat exchanger 4 will have a part of the water through the one-way valve 6 to the electric drive control system to further reduce the temperature of the electric drive control system coolant to strengthen cooling. Similarly, the heated coolant flowing out of the electric drive control system will have a part of the water through the stop valve 12 to the inlet of the plate heat exchanger 4. At this time, the front radiator 10 is connected, which can make the coolant dissipate heat to the environment.

[0105] The application provides a forced cooling method for the battery and the electric drive control system using the air conditioning system, and proposes a pre-cooling strategy and a control strategy corresponding to different temperatures, which reduces the cost of the whole vehicle and prolongs the use time of the racing mode through the pre-cooling strategy.

[0106] The application can flexibly adjust the cooling strategy according to different combinations of the battery temperature, the motor temperature and the ambient temperature by finely dividing eight different operating modes, realizes accurate control of the air conditioning system, the front radiator, the cooling fan, the water pump and various valves, and makes the system provide the optimal cooling effect under various complex working conditions. For example, the front radiator can be bypassed to avoid unnecessary heat loss in a low-temperature environment, and the synergistic effect of the air conditioning system and the front radiator can be fully utilized in a high-temperature environment. Through flexible combination of the battery circuit and the motor circuit, the system can realize independent cooling or series cooling to meet the temperature requirements of different components. This highly intelligent and personalized cooling strategy not only significantly improves the thermal management efficiency of the whole vehicle, but also effectively prolongs the service life of the key components and improves the performance of the vehicle under extreme conditions. At the same time, the fine temperature control helps to optimize energy utilization, improve the overall efficiency and endurance of the vehicle, and improve the user experience.

[0107] The second aspect of the application provides a thermal management control method based on the automobile thermal management system according to the first aspect of the application, comprising:

[0108] The air conditioning system, the battery circuit, the motor electric drive circuit, the multi-way water valve and the front-end heat dissipation group; wherein the air conditioning system comprises a heat exchanger, the air conditioning system and the battery circuit are connected through the heat exchanger; one end of the front-end heat dissipation group is connected with one interface of the multi-way water valve, and the other end is connected with the motor electric drive circuit; the temperature of the cooling liquid in the battery circuit is the temperature of the battery cell, and the temperature of the cooling liquid in the motor electric drive circuit is the temperature of the motor electric drive;

[0109] The automobile thermal management system selectively exchanges heat between the air conditioning system and the battery circuit according to the ambient temperature, the battery cell temperature and / or the motor electric drive temperature, selectively exchanges heat between the battery circuit and the motor electric drive circuit through the multi-way water valve, and selectively reduces the temperature of the motor electric drive cooling liquid in the motor electric drive circuit through the front-end heat dissipation group.

[0110] The third aspect of the present application provides an automobile comprising the automobile thermal management system according to any one of the above-mentioned embodiments.

[0111] As shown in Figure 11 The fourth aspect of the present application provides an electronic device comprising:

[0112] at least one processor; and at least one memory connected with the processor in communication, wherein: the memory stores program instructions executable by the processor, and the processor invoking the program instructions can execute the steps of the method according to any one of the above-mentioned embodiments.

[0113] The fifth aspect of the present application discloses a computer readable storage medium storing a computer program, and the computer program is executed by a processor to execute the steps of the method according to any one of the above-mentioned embodiments.

[0114] The computer readable storage medium can include any entity or device capable of carrying the computer program, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory) and software distribution medium, etc. The computer program includes computer program code. The computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer readable storage medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory) and software distribution medium, etc.

[0115] The systems and methods have been described herein in general terms as helpful to an understanding of the details of the application. In addition, various specific details have been set forth in order to provide a general understanding of the overall structure and operation of embodiments of the present application. It will be appreciated, however, that implementations of the present application can be practiced without some or all of the specific details set forth herein, or with other apparatus, systems, assemblies, methods, components, materials, parts and / or the like. In other instances, well known structures, materials, and / or operations have not been shown or described in detail in order to avoid obscuring aspects of the embodiments of the present application.

[0116] Thus, although the present application has been described in reference to specific embodiments thereof, many changes in the details thereof will be suggested to those skilled in the art, and it is intended in the application to encompass all such changes and modifications that fall within the scope of the appended claims. Accordingly, various modifications can be made in carrying out the application described herein without departing from the scope and spirit of the application. Therefore, the scope of the present application is not to be limited to the specific embodiments discussed above but only by the claims that follow.

Claims

1. An automotive thermal management system, characterized by, The automobile thermal management system comprises a cooling system, a battery circuit, a motor and electric drive circuit, a multi-way water valve and a front-end heat dissipation group; the cooling system comprises a heat exchanger, the cooling system and the battery circuit are connected through the heat exchanger; the front-end heat dissipation group comprises a front-end heat radiator and a front-end cooling fan, one end of the front-end heat radiator is connected with an interface of the multi-way water valve, and the other end is connected with the motor and electric drive circuit; the cooling liquid temperature in the battery circuit is the battery cell temperature, and the cooling liquid temperature in the motor and electric drive circuit is the motor and electric drive temperature; The automobile thermal management system selectively exchanges heat between the cooling system and the battery circuit according to the environment temperature, the battery cell temperature and / or the motor and electric drive temperature, selectively exchanges heat between the battery circuit and the motor and electric drive circuit through the multi-way water valve, and selectively reduces the electric drive cooling liquid temperature in the motor and electric drive circuit through the front-end heat dissipation group; When a user needs to implement a strong cooling mode or the vehicle perceives that the user needs to implement a strong cooling mode, the thermal management system starts a precooling mode based on a preset instruction, and the precooling mode comprises: When the battery cell temperature is greater than a first preset battery cell temperature and the motor and electric drive temperature is greater than a first preset motor and electric drive temperature, the precooling mode operates in mode one; When the battery cell temperature is not greater than the first preset battery cell temperature and the motor and electric drive temperature is greater than the first preset motor and electric drive temperature, the precooling mode operates in mode two; When the battery cell temperature is equal to the first preset battery cell temperature and the motor and electric drive temperature is equal to the first preset motor and electric drive temperature, the precooling mode is switched to the strong cooling mode. The battery circuit comprises a battery water pump and a battery, and / or the motor and electric drive circuit comprises a motor water pump and an electric drive electronic control system.

2. The automotive thermal management system of claim 1, wherein, A one-way valve and / or a stop valve are further included, one end of the one-way valve and the stop valve is connected with the battery circuit, and the other end is connected with the motor and electric drive circuit.

3. The automotive thermal management system of claim 2, wherein, The automobile thermal management system comprises a cooling system, a battery circuit, a motor and electric drive circuit, a multi-way water valve and a front-end heat dissipation group; the cooling system comprises a heat exchanger, the cooling system and the battery circuit are connected through the heat exchanger; the front-end heat dissipation group comprises a front-end heat radiator and a front-end cooling fan, one end of the front-end heat radiator is connected with an interface of the multi-way water valve, and the other end is connected with the motor and electric drive circuit; the cooling liquid temperature in the battery circuit is the battery cell temperature, and the cooling liquid temperature in the motor and electric drive circuit is the motor and electric drive temperature; 4. The automotive thermal management system of claim 3, wherein, The automobile thermal management system selectively exchanges heat between the cooling system and the battery circuit according to the environment temperature, the battery cell temperature and / or the motor and electric drive temperature, selectively exchanges heat between the battery circuit and the motor and electric drive circuit through the multi-way water valve, and selectively reduces the electric drive cooling liquid temperature in the motor and electric drive circuit through the front-end heat dissipation group; When a user needs to implement a strong cooling mode or the vehicle perceives that the user needs to implement a strong cooling mode, the thermal management system starts a precooling mode based on a preset instruction, and the precooling mode comprises:

5. The automotive thermal management system of claim 3, wherein, When the battery cell temperature is greater than a first preset battery cell temperature and the motor and electric drive temperature is greater than a first preset motor and electric drive temperature, the precooling mode operates in mode one; When the battery cell temperature is not greater than the first preset battery cell temperature and the motor and electric drive temperature is greater than the first preset motor and electric drive temperature, the precooling mode operates in mode two; 6. The automotive thermal management system of claim 1, wherein, When the battery cell temperature is equal to the first preset battery cell temperature and the motor and electric drive temperature is equal to the first preset motor and electric drive temperature, the precooling mode is switched to the strong cooling mode. The battery circuit comprises a battery water pump and a battery, and / or the motor and electric drive circuit comprises a motor water pump and an electric drive electronic control system. A one-way valve and / or a stop valve are further included, one end of the one-way valve and the stop valve is connected with the battery circuit, and the other end is connected with the motor and electric drive circuit. The automobile thermal management system comprises a cooling system, a battery circuit, a motor and electric drive circuit, a multi-way water valve and a front-end heat dissipation group; the cooling system comprises a heat exchanger, the cooling system and the battery circuit are connected through the heat exchanger; the front-end heat dissipation group comprises a front-end heat radiator and a front-end cooling fan, one end of the front-end heat radiator is connected with an interface of the multi-way water valve, and the other end is connected with the motor and electric drive circuit; the cooling liquid temperature in the battery circuit is the battery cell temperature, and the cooling liquid temperature in the motor and electric drive circuit is the motor and electric drive temperature; The automobile thermal management system selectively exchanges heat between the cooling system and the battery circuit according to the environment temperature, the battery cell temperature and / or the motor and electric drive temperature, selectively exchanges heat between the battery circuit and the motor and electric drive circuit through the multi-way water valve, and selectively reduces the electric drive cooling liquid temperature in the motor and electric drive circuit through the front-end heat dissipation group; When a user needs to implement a strong cooling mode or the vehicle perceives that the user needs to implement a strong cooling mode, the thermal management system starts a precooling mode based on a preset instruction, and the precooling mode comprises: When the motor and electric drive temperature is less than or equal to the battery cell temperature, the battery cell temperature is less than a first preset temperature, and the motor and electric drive temperature is less than the environment temperature, the strong cooling mode operates in mode three: In the third mode: the air conditioning system does not work, the front end radiator is bypassed, the front end cooling fan is turned off, the motor water pump and the battery water pump are operated at the maximum duty ratio, the stop valve is closed, the battery circuit forms an independent loop through the battery water pump, the interface a and the interface d of the multi-way water valve to perform battery temperature equalization, and the motor electric drive circuit forms an independent loop through the motor water pump, the interface b and the interface e of the multi-way water valve to perform motor electric drive temperature equalization.

7. The automotive thermal management system of claim 1, wherein, The strong cooling mode comprises: When the first preset temperature is less than or equal to the motor electric drive temperature, the motor electric drive temperature is less than the second preset temperature, and the motor electric drive temperature is less than the environment temperature, the strong cooling mode operates in the fourth mode: In the fourth mode: the air conditioning system does not work, the front end radiator is bypassed, the front end cooling fan is turned off, the motor water pump and the battery water pump are operated at the maximum duty ratio, the stop valve is closed, the interface a and the interface b of the multi-way water valve are communicated, the interface d and the interface e are communicated, and the motor electric drive circuit is operated in series with the battery circuit through the multi-way water valve.

8. The automotive thermal management system of claim 1, wherein, The strong cooling mode comprises: When the first preset temperature is less than or equal to the motor electric drive temperature, the motor electric drive temperature is less than the second preset temperature, and the motor electric drive temperature is less than the environment temperature, the strong cooling mode operates in the fourth mode: In the fourth mode: the air conditioning system does not work, the front end radiator is bypassed, the front end cooling fan is turned off, the motor water pump and the battery water pump are operated at the maximum duty ratio, the stop valve is closed, the interface a and the interface b of the multi-way water valve are communicated, the interface d and the interface e are communicated, and the motor electric drive circuit is operated in series with the battery circuit through the multi-way water valve.

9. The automotive thermal management system of claim 1, wherein, The strong cooling mode comprises: When the first preset temperature is less than or equal to the motor electric drive temperature, the motor electric drive temperature is less than the second preset temperature, and the motor electric drive temperature is less than the environment temperature, the strong cooling mode operates in the fourth mode: In the fourth mode: the air conditioning system does not work, the front end radiator is bypassed, the front end cooling fan is turned off, the motor water pump and the battery water pump are operated at the maximum duty ratio, the stop valve is closed, the interface a and the interface b of the multi-way water valve are communicated, the interface d and the interface e are communicated, and the motor electric drive circuit is operated in series with the battery circuit through the multi-way water valve.

10. The automotive thermal management system of claim 1, wherein, The strong cooling mode comprises: When the first preset temperature is less than or equal to the motor electric drive temperature, the motor electric drive temperature is less than the second preset temperature, and the motor electric drive temperature is less than the environment temperature, the strong cooling mode operates in the fourth mode: In the fourth mode: the air conditioning system does not work, the front end radiator is bypassed, the front end cooling fan is turned off, the motor water pump and the battery water pump are operated at the maximum duty ratio, the stop valve is closed, the interface a and the interface b of the multi-way water valve are communicated, the interface d and the interface e are communicated, and the motor electric drive circuit is operated in series with the battery circuit through the multi-way water valve. In the mode seven: the air conditioning system works, the front end radiator is bypassed, the front end cooling fan runs at the maximum duty ratio, the motor water pump and the battery water pump run at the maximum duty ratio, the stop valve is opened, the cooling liquid cooled by the air conditioning system is divided into two ways, one way enters the battery through the interface a and the interface d of the multi-way water valve and the battery water pump to cool the battery, the outflowing cooling liquid enters the heat exchanger, the motor water pump connects the electric drive electronic control system, the interface b and the interface e of the multi-way water valve to form a circulation; the other way flows to the electric drive electronic control system through the one-way valve, the heated cooling liquid out of the electric drive electronic control system also flows to the heat exchanger through the stop valve.

11. The automotive thermal management system of claim 1, wherein, The strong cooling mode includes: When the second preset temperature is less than or equal to the motor electric drive temperature and the environment temperature is less than the motor electric drive temperature, the strong cooling mode runs in mode eight: In the mode eight: the air conditioning system works, the front end radiator is connected, the front end cooling fan runs at the maximum duty ratio, the motor water pump and the battery water pump run at the maximum duty ratio, the stop valve is opened, the cooling liquid cooled by the air conditioning system is divided into two ways, one way enters the battery through the interface a and the interface d of the multi-way water valve and the battery water pump to cool the battery, the outflowing cooling liquid enters the heat exchanger, the motor water pump connects the electric drive electronic control system, the interface b and the interface c of the multi-way water valve to form a circulation; the other way flows to the electric drive electronic control system through the one-way valve, the heated cooling liquid out of the electric drive electronic control system also flows to the heat exchanger through the stop valve.

12. A thermal management control method based on the thermal management system of claim 1, characterized by, Including: The air conditioning system, the battery circuit, the motor electric drive circuit, the multi-way water valve and the front end heat dissipation group; the air conditioning system includes a heat exchanger, the air conditioning system and the battery circuit are connected through the heat exchanger; the front end heat dissipation group includes a front end radiator and a front end heat dissipation fan, one end of the front end radiator is connected with an interface of the multi-way water valve, and the other end is connected with the motor electric drive circuit; the temperature of the cooling liquid in the battery circuit is the temperature of the battery cell, and the temperature of the cooling liquid in the motor electric drive circuit is the temperature of the motor electric drive; The automobile thermal management system selectively exchanges heat between the air conditioning system and the battery circuit according to the environment temperature, the battery cell temperature and / or the motor electric drive temperature, selectively exchanges heat between the battery circuit and the motor electric drive circuit through the multi-way water valve, and selectively reduces the electric drive cooling liquid temperature in the motor electric drive circuit through the front end heat dissipation group; When a user needs to implement a strong cooling mode or the vehicle perceives that the user needs to implement a strong cooling mode, the thermal management system starts a precooling mode based on a preset instruction, and the precooling mode includes: When the battery cell temperature is greater than a first preset battery cell temperature and the motor electric drive temperature is greater than a first preset motor electric drive temperature, the precooling mode runs in mode one; When the battery cell temperature is not greater than the first preset battery cell temperature and the motor electric drive temperature is greater than the first preset motor electric drive temperature, the precooling mode runs in mode two; When the battery cell temperature is equal to the first preset battery cell temperature and the motor electric drive temperature is equal to the first preset motor electric drive temperature, the precooling mode is switched to the strong cooling mode.

13. An automobile comprising the automobile thermal management system according to any one of claims 1-11.

14. An electronic device, comprising: Including: At least one processor; and at least one memory connected to the processor in communication, wherein: the memory stores program instructions executable by the processor, and the processor invoking the program instructions can execute the steps of the thermal management control method according to claim 12.

15. A readable storage medium, storing a computer program, characterized in that, The computer program is executed by the processor to execute the steps of the thermal management control method according to claim 12.

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