CN117734382A

CN117734382A - Vehicle thermal management control method and device, electronic equipment and storage medium

Info

Publication number: CN117734382A
Application number: CN202311799251.6A
Authority: CN
Inventors: 孔鹏; 郑登磊; 何勇; 文浩懿; 王靖鸿
Original assignee: Chongqing Seres New Energy Automobile Design Institute Co Ltd
Current assignee: Chongqing Seres New Energy Automobile Design Institute Co Ltd
Priority date: 2023-12-25
Filing date: 2023-12-25
Publication date: 2024-03-22

Abstract

The application relates to the technical field of vehicle thermal management, and provides a vehicle thermal management control method, a device, electronic equipment and a storage medium. According to the method, different internal connection modes are used for controlling the six-way valve according to temperature control requirements, and the determined initial loop can form a target loop meeting the temperature control requirements through different connection modes of the six-way valve, so that functional requirements of the power battery and the electric drive circuit under different working conditions are met.

Description

Vehicle thermal management control method and device, electronic equipment and storage medium

Technical Field

The present disclosure relates to the field of vehicle thermal management technologies, and in particular, to a vehicle thermal management control method, a device, an electronic device, and a storage medium.

Background

With the increasing number of vehicles and the continuous development of computer technology, network technology and the like, the intelligent requirements, the safety requirements, the environmental protection requirements and the like of people on the vehicles are also higher and higher, and new energy vehicles are generated.

The new energy vehicles are classified into pure electric vehicles and extended range vehicles, the thermal management system is an indispensable system on the new energy vehicles, and the thermal management system can ensure that the passenger cabin is comfortable, and the battery and the electric drive work normally. However, the thermal management system has complex working conditions and various control objects, so that the software control logic of the thermal management system is relatively complex, the control efficiency is low, and how to perform thermal management control on the new energy vehicle, thereby improving the thermal management control efficiency is a problem to be solved urgently.

Disclosure of Invention

In view of this, the embodiments of the present application provide a vehicle thermal management control method, apparatus, electronic device, and storage medium, so as to solve the problem in the prior art that the thermal management control logic of the vehicle is complex, resulting in low control efficiency.

In a first aspect of an embodiment of the present application, a vehicle thermal management control method is provided, including: acquiring the temperature of an electric drive circuit and the temperature of a power battery, and determining the current temperature regulation requirement of the vehicle according to the temperature of the electric drive circuit and the temperature of the power battery; determining an initial loop according to the temperature regulation requirement, the electric drive cooling loop and the power battery temperature control loop, and generating an internal connection instruction according to the initial loop, wherein the internal connection instruction is used for controlling the internal communication mode of the six-way valve; and sending an internal connection instruction to the six-way valve, and controlling the six-way valve to connect the internal ports according to the internal connection instruction so that the initial loop is communicated to form a target loop.

In a second aspect of the embodiments of the present application, there is provided a vehicle thermal management control apparatus, including: the acquisition module is used for acquiring the temperature of the electric drive circuit and the temperature of the power battery and determining the current temperature regulation requirement of the vehicle according to the temperature of the electric drive circuit and the temperature of the power battery; the generating module is used for determining an initial loop according to the temperature regulation requirement, the electric drive cooling loop and the power battery temperature control loop, and generating an internal connection instruction according to the initial loop, wherein the internal connection instruction is used for controlling the internal communication mode of the six-way valve; and the sending module is used for sending the internal connection instruction to the six-way valve, and controlling the six-way valve to connect the internal port according to the internal connection instruction so that the initial loop is communicated to form a target loop.

In a third aspect of the embodiments of the present application, there is provided an electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the above method when executing the computer program.

In a fourth aspect of the embodiments of the present application, there is provided a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the above method.

Compared with the prior art, the embodiment of the application has the beneficial effects that: the method provided by the embodiment of the application is used for controlling the six-way valve to use different internal connection modes according to the temperature control requirement, and the determined initial loop can form a target loop meeting the temperature control requirement through the different connection modes of the six-way valve, so that the functional requirements of the power battery and the electric drive circuit under different working conditions are realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of a vehicle thermal management control method according to an embodiment of the present application;

FIG. 2 is a schematic view of a basic structure of a vehicle thermal management system provided on a vehicle according to an embodiment of the present application;

FIG. 3 is a flow chart of yet another vehicle thermal management control method provided in an embodiment of the present application;

FIG. 4 is a flow chart of yet another vehicle thermal management control method provided by an embodiment of the present application;

FIG. 4a is a schematic illustration of a six-way valve internal connection provided in an embodiment of the present application;

FIG. 5 is a flow chart of yet another alternative vehicle thermal management control method provided by an embodiment of the present application;

FIG. 5a is a schematic illustration of yet another six-way valve internal connection provided by an embodiment of the present application;

FIG. 6 is a flow chart of another alternative vehicle thermal management control method provided by an embodiment of the present application;

FIG. 6a is a schematic illustration of another six-way valve internal connection provided in an embodiment of the present application;

FIG. 7 is a schematic illustration of still another six-way valve internal connection provided in an embodiment of the present application;

fig. 8 is a schematic structural view of a vehicle thermal management control device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

Reference numerals illustrate:

1-an electrically driven cooling circuit; 11-an electric drive cooling main path; 111-electrical drive circuit contact locations; 12-a first electrically driven cooling branch; 121-a heat sink; 13-a second electrically driven cooling branch; 2-a power battery temperature control loop; 21-a first heat exchanger; 22-a second heat exchanger; 23-a one-way valve; 24-battery water pump; 25-power battery contact sites; 3-six-way valve; 4-compressor heating circuit; 41-a gas-liquid separator; 42-a compressor; 43-a third heat exchanger; 44-an electromagnetic valve; 45-an outdoor condenser; 46-vehicle-mounted air conditioner; 461-warm air core; 462-evaporator; 5-a heating circuit; 51-a three-way valve; 52-heating ventilation water pump.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

A vehicle thermal management control method and apparatus according to embodiments of the present application will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a basic structure of a vehicle thermal management system provided on a vehicle, as shown in fig. 2, and fig. 2 is a schematic diagram of a vehicle thermal management system provided with an upper six-way valve 3, an electric drive circuit, a power battery, an electric drive cooling circuit 1 and a power battery temperature control circuit 2, where the method is applied to the vehicle, as shown in fig. 1, and includes:

s101, acquiring the temperature of an electric drive circuit and the temperature of a power battery, and determining the current temperature regulation requirement of the vehicle according to the temperature of the electric drive circuit and the temperature of the power battery;

s102, determining an initial loop according to temperature regulation requirements, the electric drive cooling loop 1 and the power battery temperature control loop 2, and generating an internal connection instruction according to the initial loop;

and S103, sending an internal connection instruction to the six-way valve 3, and controlling the six-way valve 3 to connect the internal ports according to the internal connection instruction so that the initial loop is communicated to form a target loop.

It can be appreciated that the above-described vehicle thermal management control method provided in this example is applied to a vehicle including a vehicle that is driven automatically or intelligently (including a passenger function vehicle (e.g., a car, bus, car, etc.), a cargo function vehicle (e.g., a general truck, van, dump truck, closed truck, tank truck, flatbed truck, container truck, dump truck, special structure truck), a special vehicle (e.g., a logistics distribution vehicle, an automated guided transport vehicle AGV, patrol car, crane, excavator, bulldozer, forklift, road roller, loader, off-road engineering vehicle, armored engineering vehicle, sewage treatment vehicle, sanitation vehicle, dust collector, floor cleaning vehicle, sprinkler, sweeping robot, meal delivery robot, shopping guide robot, mower, golf cart, etc.), a vehicle with recreational functions (e.g., recreational vehicle, amusement park autopilot, balance car, etc.), rescue vehicle (e.g., fire truck, ambulance, electric power repair vehicle, engineering truck, etc.), and the like.

Specifically, the electric drive cooling circuit 1 is composed of dcdc+obc and mot+mcu, and the electric drive cooling circuit 1 is at least partially disposed adjacent to (or in contact with) the electric drive circuit for reducing the temperature of the electric drive circuit, as shown in fig. 2, the electric drive cooling circuit 1 is disposed adjacent to (or in contact with) the electric drive circuit as an electric drive circuit contact portion 111; the power battery temperature control circuit 2 is at least partially disposed (or in contact with) adjacent to the power battery (or power battery circuit) for adjusting the temperature of the power battery (or power battery circuit), and as shown in fig. 2, a portion of the battery temperature control circuit disposed (or in contact with) adjacent to the power battery is defined as a power battery contact portion 25. Wherein the six-way valve 3 comprises six external ports, and at least one or more external ports of the six-way valve 3 are in communication with the electric drive cooling circuit 1 and the power cell temperature control circuit 2.

In some examples, as shown in fig. 2, the power battery temperature control circuit 2 is provided with a first heat exchanger 21 and a second heat exchanger 22, the first heat exchanger 21 is used for reducing the temperature of the cooling liquid in the power battery temperature control circuit 2, the power battery temperature control circuit 2 reduces the temperature of the cooling liquid through the first heat exchanger 21, and then reduces the temperature of the power battery through the cooling liquid after reducing the temperature; the second heat exchanger 22 is used for raising the temperature of the cooling liquid in the power battery temperature control loop 2, and the power battery temperature control loop 2 raises the temperature of the cooling liquid through the second heat exchanger 22, and then raises the temperature of the power battery through the cooling liquid after raising the temperature.

It will be appreciated that at most one of the first heat exchanger 21 and the second heat exchanger 22 is in operation at the same time, i.e., the operation of the first heat exchanger 21 and the second heat exchanger 22 includes, but is not limited to, the following three cases:

first case: the first heat exchanger 21 is operated and the second heat exchanger 22 is not operated;

second case: the first heat exchanger 21 is not operated, and the second heat exchanger 22 is operated;

third case: the first heat exchanger 21 is not operated and the second heat exchanger 22 is not operated.

As can be appreciated, as shown in fig. 2, the first heat exchanger 21 is further connected to a compressor heating circuit 54, wherein the compressor heating circuit 54 includes a gas-liquid separator 41, a compressor 42, a third heat exchanger 42, a plurality of electromagnetic valves 44, an outdoor condenser 45, and an on-vehicle air conditioner 46, and an evaporator 462 and a warm air core 461 are disposed in the on-vehicle air conditioner 46; the second heat exchanger 22 is further connected to the heating circuit 5, the heating circuit 5 includes a three-way valve 51 and a heating ventilation water pump 52, and the heating circuit 5 is connected to the compressor heating circuit 54 through the third heat exchanger 42, wherein the refrigerant inlet of the first heat exchanger 21 is connected to the outlet of the outdoor condenser 45, and the refrigerant outlet of the first heat exchanger 21 is connected to the gas-liquid separator 41. The PTC cooling liquid inlet of the second heat exchanger 22 is connected with the opening of the three-way valve 513, and the PTC cooling liquid outlet of the second heat exchanger 22 is connected with the inlet of the heating ventilation water pump 52. The refrigerant input end of the third heat exchanger 42 is connected with the compressor outlet, the refrigerant output end of the third heat exchanger 42 is connected with the outdoor condenser 45, the cooling liquid input end of the third heat exchanger 42 is connected with the heating ventilation water pump 52, and the cooling liquid output end of the third heat exchanger 42 is connected with the PTC inlet. The three-way valve 511 is connected with the PTC outlet, the three-way valve 512 is connected with the inlet of the warm air core 461, and the 3 is connected with the second heat exchanger 22.

Wherein, through the loop, when the first heat exchanger 21 works, the temperature of the cooling liquid in the power battery driving loop is reduced by conducting the temperature of the cooling liquid passing through the first heat exchanger 21 to the compressor heating loop 54; when the second heat exchanger 22 works, the temperature of the cooling liquid passing through the second heat exchanger 22 and the cooling liquid in the heating loop 5 are subjected to heat exchange through the loops (the temperature of the cooling liquid in the heating loop 5 is higher than the temperature of the cooling liquid passing through the second heat exchanger 22), so that the temperature of the cooling liquid in the power battery driving loop is further increased.

In some examples, as shown in fig. 2, the electrically driven cooling circuit 1 includes: the first electric drive cooling branch 12 is provided with a radiator 121 for reducing the temperature of cooling liquid in the first electric drive cooling branch 12; the output port of the first electric drive cooling branch 12 is connected with the input port of the electric drive cooling main circuit 11, and the output port of the second electric drive cooling branch 13 is connected with the input port of the electric drive cooling main circuit 11. Wherein, when the cooling fluid passes through the first electrically-driven cooling branch 12, the radiator 121 on the first electrically-driven cooling branch 12 reduces the temperature of the cooling fluid flowing through the radiator 121.

In some examples, as shown in fig. 2, the first heat exchanger 21 and the second heat exchanger 22 are connected in sequence, and an output port of the second heat exchanger 22 communicates with a first common port of the first heat exchanger 21; at least one or more external ports of the six-way valve 3 are in communication with the electric drive cooling circuit 1 and the power cell temperature control circuit 2, comprising: the first port of the six-way valve 3 is communicated with the output port of the electric drive cooling main circuit 11; the second port of the six-way valve 3 is communicated with the input port of the first electric drive cooling branch 12; the third port of the six-way valve 3 is communicated with the input port of the power battery temperature control loop 2; the fourth port of the six-way valve 3 is communicated with the second common port of the first heat exchanger 21; the fifth port of the six-way valve 3 is communicated with the input port of the second electric drive cooling branch 13; the sixth port of the six-way valve 3 communicates with the first common port of the first heat exchanger 21.

The third port of the six-way valve 3 is communicated with the input port of the power battery temperature control loop 2, and a battery water pump 24 is arranged between the input port of the power battery temperature control loop 2 and the power battery contact part 25, and the battery water pump 24 is used for enabling cooling liquid to flow unidirectionally towards the power battery contact part 25, so that the cooling liquid can smoothly flow through the power battery contact part 25, and substantial temperature regulation and control of the power battery are realized; it can be understood that the output end port of the second heat exchanger 22 is also provided with a one-way valve 23, and the one-way valve 23 enables the cooling liquid output by the second heat exchanger 22 to circulate only in the output direction of the second heat exchanger 22, so that the problem of backflow of the cooling liquid output by the second heat exchanger 22 is avoided, and meanwhile, the one-way valve 23 prevents the cooling liquid from being received in the output end port direction of the second heat exchanger 22, so that the second heat exchanger 22 can only receive the cooling liquid in the direction from the power battery contact position 25.

An electric drive water pump is arranged between the first port of the six-way valve 3 and the output port of the electric drive cooling main circuit 11, and the electric drive water pump is used for enabling cooling liquid to flow unidirectionally from the electric drive circuit contact part 111 to the first port direction of the six-way valve 3.

In some examples, the vehicle thermal management control method provided in this example is applied to a vehicle, specifically, to a thermal management controller provided on the vehicle, where the thermal management controller is connected to the six-way valve 3, and is capable of controlling an internal interface connection manner of the six-way valve 3, and meanwhile, the thermal management controller has functions of interacting signals with an external controller, collecting sensor signals, storing information, and the like, and the thermal management controller can obtain temperatures of a power battery and an electric drive circuit through the controller sensors described above.

In the method, the temperature of the electric drive circuit and the temperature of the power battery are obtained, and the temperature regulation requirement of the current vehicle is determined according to the temperature of the electric drive circuit and the temperature of the power battery, wherein the temperature regulation requirement comprises the temperature regulation requirement of the electric drive circuit and the temperature regulation requirement of the power battery; specifically, whether the temperature of the electric drive circuit is too high is determined according to the temperature of the electric drive circuit, if the temperature of the electric drive circuit is too high, the electric drive circuit has a cooling requirement, wherein detailed description will be made on how to determine whether the temperature of the electric drive circuit is too high or not later, and the detailed description is omitted herein; it can be understood that the temperature of the power battery is too high or too low, which results in that the power battery cannot be used, so the example needs to determine whether the temperature of the power battery is too high or too low according to the temperature of the power battery, and if the temperature of the power battery is too high, the cooling requirement exists; if the temperature of the power battery is too low, there is a need for temperature increase, and detailed description will be made on how to determine whether the temperature of the power battery is too high or too low.

In some examples, after determining the temperature adjustment requirement, the present example further includes determining an initial circuit according to the temperature adjustment requirement, the electric drive cooling circuit 1, and the power battery temperature control circuit 2, and generating an internal connection command according to the initial circuit; it can be understood that, since the temperature adjustment requirement at least includes the temperature adjustment requirement of the power battery or the electric drive circuit, and some or all of the electric drive cooling circuit 1 and the power battery temperature control circuit 2 are needed to be implemented for the temperature adjustment requirement, the embodiment needs to further determine the initial circuit for meeting the temperature adjustment requirement from the electric drive cooling circuit 1 and the power battery temperature control circuit 2 according to the temperature adjustment requirement, the electric drive cooling circuit 1 and the power battery temperature control circuit 2.

For example, the temperature adjustment requirement includes a requirement of reducing the temperature of the power battery and a requirement of reducing the temperature of the electric drive circuit, and at least the power battery temperature control circuit 2 is used as an initial circuit, the electric drive cooling main circuit 11 in the electric drive cooling circuit 1 is used as an initial circuit, and the first electric drive cooling branch circuit 12 or the second electric drive cooling branch circuit 13 in the electric drive cooling circuit 1 is used as an initial circuit. It can be understood how to determine the initial loop based on the temperature adjustment requirement, which will be described in detail later, and will not be described in detail here.

After the initial loop is determined, the thermal management controller needs to further determine the connection mode of the internal port of the six-way valve 3, and generate an internal connection instruction according to the connection mode, so that the determined initial loop can form a target loop through the six-way valve 3, and the target loop is used for meeting the determined temperature regulation requirement.

In some examples, after determining the internal connection command, the thermal management controller further sends the internal connection command to the six-way valve 3, and controls the six-way valve 3 to connect the internal ports according to the internal connection command, so that the initial loop is communicated to form a target loop, and the determined target loop can meet the temperature regulation requirement of the current vehicle.

According to the technical scheme provided by the embodiment of the application, the temperature of the electric drive circuit and the temperature of the power battery are obtained, and the temperature regulation requirement of the current vehicle is determined according to the temperature of the electric drive circuit and the temperature of the power battery; determining an initial loop according to the temperature regulation requirement, the electric drive cooling loop 1 and the power battery temperature control loop 2, and generating an internal connection instruction according to the initial loop; the internal connection instruction is sent to the six-way valve 3, the six-way valve 3 is controlled to connect the internal port according to the internal connection instruction, so that the initial loop is communicated to form a target loop, the communication mode of controlling the six-way valve 3 is further realized, the determined initial loop can form the target loop meeting the temperature control requirement through different communication modes of the six-way valve 3, and therefore, the functional requirements of the power battery and the electric drive circuit under different working conditions are realized.

In some embodiments, as shown in fig. 3, determining the current vehicle temperature regulation demand based on the temperature of the electric drive circuit and the temperature of the power battery includes:

s301, comparing the temperature of the power battery with a first preset temperature and a second preset temperature, and determining a first temperature regulation requirement corresponding to the power battery, wherein the second preset temperature is higher than the first preset temperature;

s302, comparing the temperature of the electric drive circuit with a third preset temperature, and determining a second temperature regulation requirement corresponding to the electric drive circuit;

s303, determining the temperature regulation requirement based on the first temperature regulation requirement and the second temperature regulation requirement.

In some examples, the first preset temperature, the second preset temperature, and the third preset temperature are flexibly set by related personnel according to actual needs; the second preset temperature is higher than the first preset temperature, the temperature of the power battery is compared with the first preset temperature and the second preset temperature, if the temperature of the power battery is lower than the first preset temperature, the temperature of the power battery is too low, and the requirement for improving the temperature of the power battery exists, the first temperature regulation requirement is the temperature for improving the power battery; if the temperature of the power battery is higher than the second preset temperature, the temperature of the power battery is too high, the requirement for reducing the temperature of the power battery exists, the first temperature regulation requirement is to reduce the temperature of the power battery, if the temperature of the power battery is higher than the first preset temperature and lower than the second preset temperature, the current state of the power battery is good, the temperature is not required to be reduced or increased, and the first temperature regulation requirement is to be not required to regulate the temperature of the power battery.

Taking the first preset temperature as 15 degrees and the second preset temperature as 38 degrees as an example, if the temperature of the power battery is lower than 15 degrees, the current temperature of the power battery is too low, the temperature of the power battery needs to be increased, and the first temperature adjustment requirement is to increase the temperature of the power battery; if the temperature of the power battery is higher than 38 ℃, the current temperature of the power battery is too high, the temperature of the power battery needs to be reduced, the first temperature regulation requirement is to reduce the temperature of the power battery, and if the temperature of the power battery is between 15 and 38 ℃, the current state of the power battery is good, and no temperature reduction or temperature increase is needed.

In some examples, comparing the temperature of the electric drive circuit with a third preset temperature, determining a second temperature adjustment requirement corresponding to the electric drive circuit; if the temperature of the electric drive circuit is higher than the third preset temperature, the temperature of the electric drive circuit is represented to be too high, the second temperature regulation requirement is a requirement for reducing the temperature of the power battery, if the temperature of the electric drive circuit is lower than the third preset temperature, the current state of the electric drive circuit is good, cooling is not needed, and the second temperature regulation requirement is a requirement for reducing the temperature of the electric drive circuit.

Taking the third preset temperature as 15 degrees and the second preset temperature as 38 degrees as an example, if the temperature of the power battery is lower than 15 degrees, the current temperature of the power battery is too low, and the temperature of the power battery needs to be increased; if the temperature of the power battery is higher than 38 ℃, the current temperature of the power battery is too high, the temperature of the power battery needs to be reduced, and if the temperature of the power battery is between 15 and 38 ℃, the current state of the power battery is good, and no temperature reduction or temperature increase is needed.

In some examples, after the first temperature adjustment request and the second temperature adjustment request are determined, the temperature adjustment request is further determined based on the first temperature adjustment request and the second temperature adjustment request, so that the temperature adjustment request includes both the temperature adjustment request of the power battery and the temperature adjustment request of the electric drive circuit.

According to the technical scheme provided by the embodiment of the application, the temperature of the power battery is compared with a first preset temperature and a second preset temperature, a first temperature regulation requirement corresponding to the power battery is determined, and the second preset temperature is higher than the first preset temperature; comparing the temperature of the electric drive circuit with a third preset temperature to determine a second temperature regulation requirement corresponding to the electric drive circuit; based on first temperature regulation demand and second temperature regulation demand, confirm the temperature regulation demand, and then contained the temperature regulation demand of power battery and the temperature regulation demand of electric drive circuit in making among this temperature regulation demand simultaneously, avoided obtaining the temperature regulation demand of power battery alone or considered the temperature regulation demand of electric drive circuit alone, lead to the temperature regulation demand to obtain incomplete problem.

In some embodiments, if the temperature regulation requirement includes reducing the temperature requirement of the power battery and the first heat exchanger 21 is in a fault state, as shown in fig. 4, determining an initial loop according to the temperature regulation requirement, the electrically driven cooling loop 1 and the power battery temperature control loop 2, and generating an internal connection command according to the initial loop includes:

s401, according to the temperature requirement of the power battery, taking a first electric drive cooling branch 12 in the electric drive cooling circuit 1 as a first initial circuit, taking an electric drive cooling main circuit 11 in the electric drive cooling circuit 1 as a second initial circuit, and taking a power battery temperature control circuit 2 as a third initial circuit;

and S402, according to the external communication relation between the first initial circuit, the second initial circuit and the third initial circuit and the six-way valve 3, generating internal connection instructions for communicating the first initial circuit, the second initial circuit and the third initial circuit, so that the first initial circuit, the second initial circuit and the third initial circuit are communicated through the six-way valve 3 to form a target circuit.

Specifically, the current temperature regulation requirement includes a requirement of reducing the temperature of the power battery, and therefore the first heat exchanger 21 is required to cool the cooling liquid in the power battery temperature control circuit 2, and if the first heat exchanger 21 fails at this time (the failure reasons include, but are not limited to, the failure of the first heat exchanger 21 itself, the failure of the power battery to provide the power required by the first heat exchanger 21, and so on), the first heat exchanger 21 cannot cool the cooling liquid in the power battery temperature control circuit 2.

In the above example, when the first heat exchanger 21 itself fails, the first electric cooling branch 12 needs to be introduced, and the cooling of the cooling liquid is achieved by the radiator 121 disposed on the first electric cooling branch 12, so the present example uses the first electric cooling branch 12 as the first initial circuit, where the output end of the first electric cooling branch 12 is connected to the electric cooling main circuit 11, and the cooling liquid needs to be output through the electric cooling main circuit 11, so the present example uses the electric cooling main circuit 11 as the second initial circuit, and finally, the cooling of the power battery needs to be achieved by the power battery temperature control circuit 2, and therefore, the present example uses the power battery temperature control circuit 2 as the third initial circuit.

In some examples, after determining the first initial circuit, the second initial circuit, and the third initial circuit, the present example generates internal connection instructions for connecting the first initial circuit, the second initial circuit, and the third initial circuit according to the external connection relationship between the first initial circuit, the second initial circuit, and the third initial circuit and the six-way valve 3, so that the first initial circuit, the second initial circuit, and the third initial circuit are connected through the six-way valve 3 to form a target circuit.

The fourth port of the six-way valve 3 is communicated with the second common port of the first heat exchanger 21, and the third port of the six-way valve 3 is communicated with the input port of the power battery temperature control loop 2; the second port of the six-way valve 3 is communicated with the input port of the first electric drive cooling branch 12, the first port of the six-way valve 3 is communicated with the output port of the electric drive cooling main path 11, at this time, the corresponding internal connection instruction is that the fourth port is connected with the second port in the six-way valve 3, the third port is connected with the first port, the fifth port and the sixth port are blocked, as shown in fig. 4a, the first initial loop, the second initial loop and the third initial loop can be mutually communicated, so that the cooling liquid flows from the first heat exchanger 21 to the fourth port of the six-way valve 3, flows to the second port of the six-way valve 3 through the second port of the six-way valve 3, and flows to the first electric drive cooling branch 12 through the second port of the six-way valve 3, the radiator 121 arranged on the first electric drive cooling branch 12 dissipates the cooling liquid, the cooled cooling liquid is output to the first port of the six-way valve 3 after passing through the electric drive cooling main path 11, the first port of the six-way valve 3 is connected with the third port, the cooling liquid is substantially cooled by the power is transmitted to the third port after the cooling liquid is cooled, and the cooling liquid is substantially cooled by the battery 25, and the cooling liquid is substantially cooled by the battery is cooled by the power is further transmitted to the third port after the cooling liquid is cooled by the battery, and the cooling liquid is substantially cooled by the power is cooled by the battery.

It will be appreciated that during the above cycle, the second heat exchanger 22 is also inactive, and during the above cycle, the cooling of the electric drive circuit can be achieved as well, so that if the temperature adjustment requirement includes a reduction in the temperature requirement of the power battery and a reduction in the temperature requirement of the electric drive circuit, the internal command can be generated as well to connect the internal ports of the six-way valve 3.

According to the technical scheme provided by the embodiment of the application, according to the temperature requirement of the power battery, a first electric drive cooling branch 12 in the electric drive cooling circuit 1 is used as a first initial circuit, an electric drive cooling main circuit 11 in the electric drive cooling circuit 1 is used as a second initial circuit, and a power battery temperature control circuit 2 is used as a third initial circuit; according to the external communication relation between the first initial loop, the second initial loop and the third initial loop and the six-way valve 3, internal connection instructions for communicating the first initial loop, the second initial loop and the third initial loop are generated, so that the first initial loop, the second initial loop and the third initial loop are communicated through the six-way valve 3 to form a target loop, a plurality of initial loops can be communicated with each other through ports inside the six-way valve 3 to form the target loop, and the problems that a plurality of control valves are needed to be used, the control is complicated and the control efficiency is low are solved.

In some embodiments, if the temperature adjustment requirement includes increasing the temperature requirement of the power battery and decreasing the temperature requirement of the electric drive circuit, as shown in fig. 5, determining an initial loop according to the temperature adjustment requirement, the electric drive cooling loop 1, and the power battery temperature control loop 2, and generating the internal connection command according to the initial loop includes:

s501, taking a second electric drive cooling branch 13 in the electric drive cooling circuit 1 as a first initial circuit, taking an electric drive cooling main circuit 11 in the electric drive cooling circuit 1 as a second initial circuit and taking a power battery temperature control circuit 2 as a third initial circuit according to the temperature requirement of the electric drive circuit and the temperature requirement of the electric drive circuit;

s502, according to the external communication relation between the first initial circuit, the second initial circuit and the third initial circuit and the six-way valve 3, internal connection instructions for communicating the first initial circuit, the second initial circuit and the third initial circuit are generated, so that the first initial circuit, the second initial circuit and the third initial circuit are communicated through the six-way valve 3 to form a target circuit.

Specifically, if the temperature adjustment requirement includes a temperature requirement for increasing the temperature of the power battery and a temperature requirement for decreasing the temperature of the electric drive circuit, the current temperature of the electric drive circuit is higher, and the temperature of the power battery is lower, at this time, the cooling liquid flowing through the electric drive circuit contact portion 111 will be raised, whereas the cooling liquid flowing through the power battery contact portion 25 will be lowered, so the present example directly uses the cooling liquid flowing through the electric drive circuit contact portion 111 to raise the temperature of the substantial power battery, and directly uses the cooling liquid flowing through the power battery contact portion 25 to lower the temperature of the substantial electric drive circuit.

In the above example, since the temperature of the cooling liquid flowing through the power battery contact portion 25 is already lower than the temperature of the substantial electric drive circuit, the radiator 121 is not required to cool the cooling liquid flowing through the electric drive circuit contact portion 111, and therefore, the present example uses the second electric drive cooling branch 13 as the first initial circuit, uses the electric drive cooling main circuit 11 in the electric drive cooling circuit 1 as the second initial circuit, and finally, the power battery temperature control circuit 2 is required to achieve the temperature rise of the power battery, and therefore, the present example uses the power battery temperature control circuit 2 as the third initial circuit.

The fourth port of the six-way valve 3 is communicated with the second common port of the first heat exchanger 21, and the third port of the six-way valve 3 is communicated with the input port of the power battery temperature control loop 2; the fifth port of the six-way valve 3 is communicated with the input port of the second electric drive cooling branch 13; the first port of the six-way valve 3 is communicated with the output port of the electric drive cooling main circuit 11, at this time, the corresponding internal connection instruction is that the fourth port is connected with the fifth port in the six-way valve 3, the third port is connected with the first port, the fifth port and the sixth port are cut off, as shown in fig. 5a, the first initial circuit, the second initial circuit and the third initial circuit can be mutually communicated, so that the cooling liquid flows from the first heat exchanger 21 to the fourth port of the six-way valve 3, flows to the fifth port of the six-way valve 3 through the interior of the six-way valve 3, flows to the second electric drive cooling branch 13 through the fifth port of the six-way valve 3, the second cooling branch transmits the cooling liquid to the electric drive cooling main circuit 11, the electric drive cooling main circuit 11 is further cooled, at this time, according to the thermodynamic principle, the cooling liquid is warmed up, the electric drive cooling main circuit 11 outputs the warmed up cooling liquid to the first port of the six-way valve 3, the first port of the six-way valve 3 is further connected with the third port, the electric drive cooling liquid is further transmitted to the third port through the battery, and the electric drive cooling main circuit is further cooled down by the battery, the electric power is further cooled down by the electric drive cooling main circuit is further, the electric drive is further cooled down by the battery is further substantially, the electric drive is realized, and the electric power is further cooled by the battery is further substantially cooled by the battery, and the battery is further cooled, and the power is further substantially cooled by the battery is further cooled by the battery and the battery is further cooled.

In some examples, if the temperature adjustment requirement includes increasing the temperature requirement of the power battery and decreasing the temperature requirement of the electric drive circuit, further obtaining the temperature of the cooling fluid in the electric drive cooling circuit 1 (the electric drive cooling main circuit 11 and/or the second electric drive cooling branch circuit 13) is required, and when the temperature of the cooling fluid in the electric drive cooling circuit 1 exceeds a preset fourth preset temperature, the "taking the second electric drive cooling branch circuit 13 in the electric drive cooling circuit 1 as the first initial circuit, taking the electric drive cooling main circuit 11 in the electric drive cooling circuit 1 as the second initial circuit, taking the power battery temperature control circuit 2 as the third initial circuit", preferably, the fourth preset temperature is 40 °.

It will be appreciated that during the above cycle, the second heat exchanger 22 is inactive; the first heat exchanger 21 may be in an inactive state; if the first heat exchanger 21 is in the working state during the circulation process, the first heat exchanger 21 can exchange heat to the air-conditioning warm air core 461, so as to cool the cooling liquid, and the temperature of the air-conditioning warm air core 461 is raised, so that the cabin can have a warm environment.

According to the technical scheme provided by the embodiment of the application, according to the temperature requirement of the electric drive circuit and the temperature requirement of the electric drive circuit, the second electric drive cooling branch 13 in the electric drive cooling circuit 1 is used as a first initial circuit, the electric drive cooling main circuit 11 in the electric drive cooling circuit 1 is used as a second initial circuit, and the power battery temperature control circuit 2 is used as a third initial circuit; according to the external communication relation between the first initial loop, the second initial loop and the third initial loop and the six-way valve 3, internal connection instructions for communicating the first initial loop, the second initial loop and the third initial loop are generated, so that the first initial loop, the second initial loop and the third initial loop are communicated through the six-way valve 3 to form a target loop, a plurality of initial loops can be communicated with each other through ports inside the six-way valve 3 to form the target loop, and the problems that a plurality of control valves are needed to be used, the control is complicated and the control efficiency is low are solved.

In some examples, if the temperature adjustment requirement includes reducing the temperature of the power battery and reducing the temperature of the electric drive circuit, and the temperature of the electric drive circuit is higher than the temperature of the power battery, as shown in fig. 6, determining an initial circuit according to the temperature adjustment requirement, the electric drive cooling circuit 1, and the power battery temperature control circuit 2, and generating an internal connection command according to the initial circuit, including:

s601, taking a first electric drive cooling branch 12 in the electric drive cooling circuit 1 as a first initial circuit and an electric drive cooling main circuit 11 in the electric drive cooling circuit 1 as a second initial circuit according to the temperature requirement of the electric drive circuit;

s602, taking the power battery temperature control loop 2 as a third initial loop according to the temperature of the reduced electric drive circuit;

s603, according to the external communication relation between the first initial circuit and the second initial circuit and the six-way valve 3, generating a first internal connection instruction for communicating the first initial circuit and the second initial circuit, so that the first initial circuit and the second initial circuit are communicated through the six-way valve 3 to form a first target circuit;

s604, according to the external communication relation between the third initial circuit and the six-way valve 3, generating a second internal connection instruction for communicating the third initial circuit, so that the third initial circuit is communicated through the six-way valve 3 to form a second target circuit.

Specifically, if the temperature adjustment requirement includes reducing the temperature requirement of the power battery and reducing the temperature requirement of the electric drive circuit, the current temperature of the electric drive circuit is higher, the temperature of the power battery is higher, and at this time, the temperature of the electric drive circuit is higher than the temperature of the power battery, the cooling liquid flowing through the electric drive circuit contact portion 111 is heated, and the cooling liquid flowing through the power battery contact portion 25 is heated, so that the cooling situation that the cooling of the power battery cannot be performed due to the fact that the cooling liquid flowing through the electric drive circuit contact portion 111 is used as the substantial power battery is used for cooling, because the temperature of the electric drive circuit is higher than the temperature of the substantial power battery, at this time, the temperature of the cooling liquid flowing through the electric drive circuit contact portion 111 may be higher than the temperature of the substantial power battery, and if the cooling liquid flowing through the electric drive circuit contact portion 111 is used for cooling the substantial power battery is used, the cooling situation that the cooling of the power battery cannot be performed occurs.

In the above example, the first electric drive cooling branch 12 is used as a first initial circuit, the electric drive cooling main circuit 11 in the electric drive cooling circuit 1 is used as a second initial circuit, and finally, the power battery temperature control circuit 2 is required to realize cooling of the power battery, so the power battery temperature control circuit 2 is used as a third initial circuit in the example.

In some examples, since the temperature of the substantial power battery and the substantial electric drive circuit are both higher, the present example cools the substantial electric drive circuit through the first initial circuit and the second initial circuit, cools the substantial power battery through the third initial circuit, and does not communicate the first initial circuit, the second initial circuit and the third initial circuit through the six-way valve 3, but directly causes the first initial circuit and the second initial circuit to form a first target circuit in a closed loop, and cools the substantial electric drive circuit through the first target circuit; the third initial circuit is closed to form a second target circuit, and the substantial power battery is cooled through the second target circuit.

The fourth port of the six-way valve 3 is communicated with the second common port of the first heat exchanger 21, and the third port of the six-way valve 3 is communicated with the input port of the power battery temperature control loop 2; the second port of the six-way valve 3 is communicated with the input port of the first electric drive cooling branch 12, the first port of the six-way valve 3 is communicated with the output port of the electric drive cooling main circuit 11, and at the moment, the corresponding internal connection instruction is that the fourth port is connected with the third port in the six-way valve 3, the second port is connected with the first port, the fifth port and the sixth port are blocked, as shown in fig. 6a, the first initial circuit and the second initial circuit can be communicated in a closed loop manner to form a first target circuit, and the third initial circuit is communicated in a closed loop manner to form a second target circuit; in the first target loop, the cooling liquid flows from the second port of the six-way valve 3 to the first electric drive cooling branch 12, and after the cooling liquid on the branch is radiated through the radiator 121, the radiated cooling liquid is transmitted to the electric drive cooling main path 11, so that the cooling of the electric drive circuit is realized, and then the electric drive cooling main path 11 transmits the cooling liquid to the first port of the six-way valve 3, at the moment, the first port of the six-way valve 3 is connected with the second port, so that the cooling liquid flows from the second port of the six-way valve 3 to the first electric drive cooling branch 12, and the cooling liquid on the branch is radiated through the radiator 121, so that the cooling of the electric drive circuit is realized. In the second target loop, the first heat exchanger 21 outputs the cooled cooling liquid to the fourth port of the six-way valve 3, and the fourth port in the interior of the six-way valve 3 is connected with the third port, so that the cooling liquid flows from the fourth port to the third port, is transmitted to the power battery contact part 25 through the third port, so as to realize the cooling of the substantial power battery, flows through the second heat exchanger 22, flows to the first heat exchanger 21 through the output end of the second heat exchanger 22, and cools the cooling liquid through the first heat exchanger 21, thereby realizing the cooling of the power battery.

In some examples, if the temperature adjustment requirement includes reducing the temperature of the power battery and reducing the temperature of the electric drive circuit, and the temperature of the electric drive circuit is higher than the temperature of the power battery, further obtaining the temperature of the cooling fluid in the electric drive cooling circuit 1 (the electric drive cooling main circuit 11 and/or the first electric drive cooling branch circuit 12) is required, and when the temperature of the cooling fluid in the electric drive cooling circuit 1 exceeds a fourth preset temperature, the following steps S601 to S604 are performed, and preferably, the fourth preset temperature is 40 °.

According to the technical scheme provided by the embodiment of the application, according to the temperature requirement of the electric drive circuit, a first electric drive cooling branch 12 in the electric drive cooling circuit 1 is used as a first initial circuit, and an electric drive cooling main circuit 11 in the electric drive cooling circuit 1 is used as a second initial circuit; taking the power battery temperature control loop 2 as a third initial loop according to the temperature of the reduced electric drive circuit; according to the external communication relation between the first initial circuit and the second initial circuit and the six-way valve 3, generating a first internal connection instruction for communicating the first initial circuit and the second initial circuit, so that the first initial circuit and the second initial circuit are communicated through the six-way valve 3 to form a first target circuit; according to the third initial loop and the external communication relation of the six-way valve 3, a second internal connection instruction for communicating the third initial loop is generated, so that the third initial loop is communicated through the six-way valve 3 to form a second target loop, a plurality of initial loops can be communicated with each other through ports inside the six-way valve 3 to form the target loop, and the problems of complicated control and low control efficiency caused by the need of using a plurality of control valves are avoided.

In some examples, based on the first temperature adjustment requirement and the second temperature adjustment requirement, in the step of determining the temperature adjustment requirement, whether the cabin has the air conditioning heating requirement or not may be further determined, and the temperature adjustment requirement is determined together according to the first temperature adjustment requirement, the second temperature adjustment requirement and the air conditioning heating requirement, specifically, if the current temperature adjustment requirement is to reduce the temperature of the electric drive circuit and the air conditioning heating requirement, the internal connection instruction determined according to the current temperature adjustment requirement is "connect the fourth port with the first port in the interior of the six-way valve 3", the sixth port is connected with the fifth port, and the second port and the third port are blocked ", as shown in fig. 7, so that the second cooling branch, the electric drive cooling main circuit 11 and the first heat exchanger 21 form a target loop, in which the cooling liquid flows to the second cooling branch through the fifth port of the six-way valve 3, and flows to the electric drive cooling main circuit 11 through the second cooling branch, then flows to the first port of the six-way valve 3 through the electric drive cooling main circuit, and the second port and the third heat exchanger 21 flows to the sixth heat exchanger through the fourth port, and the fifth heat exchanger 21 flows to the sixth heat exchanger through the fifth port, and the fifth heat exchanger 461 flows to the heat exchanger through the fifth port, and the fifth heat exchanger 21.

Any combination of the above optional solutions may be adopted to form an optional embodiment of the present application, which is not described herein in detail.

The following are device embodiments of the present application, which may be used to perform method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

The present embodiment also provides a vehicle thermal management control device, as shown in fig. 8, including:

an obtaining module 801, configured to obtain a temperature of an electric drive circuit and a temperature of a power battery, and determine a current temperature adjustment requirement of the vehicle according to the temperature of the electric drive circuit and the temperature of the power battery;

the generating module 802 is configured to determine an initial loop according to a temperature adjustment requirement, an electric drive cooling loop, and a power battery temperature control loop, and generate an internal connection instruction according to the initial loop, where the internal connection instruction is used to control an internal communication mode of the six-way valve;

and the sending module 803 is configured to send an internal connection instruction to the six-way valve, and control the six-way valve to connect the internal ports according to the internal connection instruction, so that the initial loop is communicated to form a target loop.

The device is applied to a vehicle, a six-way valve, an electric drive circuit, a power battery, an electric drive cooling circuit and a power battery temperature control circuit are arranged on the vehicle, the electric drive cooling circuit is used for reducing the temperature of the electric drive cooling circuit, the power battery temperature control circuit is used for adjusting the temperature of the power battery, and at least one or more external ports of the six-way valve are communicated with the electric drive cooling circuit and the power battery temperature control circuit.

In some examples, the power cell temperature control loop is provided with a first heat exchanger for reducing the temperature of the coolant in the power cell temperature control loop and a second heat exchanger for increasing the temperature of the coolant in the power cell temperature control loop; the electrically driven cooling circuit includes: the electric drive cooling system comprises an electric drive cooling main circuit, a first electric drive cooling branch circuit and a second electric drive cooling branch circuit, wherein a radiator is arranged on the first electric drive cooling branch circuit and used for reducing the temperature of cooling liquid in the first electric drive cooling branch circuit, an output port of the first electric drive cooling branch circuit is connected with an input port of the electric drive cooling main circuit, and an output port of the second electric drive cooling branch circuit is connected with an input port of the electric drive cooling main circuit.

In some examples, the first heat exchanger and the second heat exchanger are connected in sequence, and an output port of the second heat exchanger is in communication with a first common port of the first heat exchanger; at least one or more external ports of the six-way valve are in communication with the electric drive cooling circuit and the power cell temperature control circuit, comprising: the first port of the six-way valve is communicated with the output port of the electric drive cooling main path; the second port of the six-way valve is communicated with the input port of the first electric drive cooling branch; the third port of the six-way valve is communicated with the input port of the power battery temperature control loop; the fourth port of the six-way valve is communicated with the second common port of the first heat exchanger; the fifth port of the six-way valve is communicated with the input port of the second electric drive cooling branch; the sixth port of the six-way valve communicates with the first common port of the first heat exchanger.

In some examples, the obtaining module 801 is further configured to compare a temperature of the power battery with a first preset temperature and a second preset temperature, and determine a first temperature adjustment requirement corresponding to the power battery, where the second preset temperature is higher than the first preset temperature; comparing the temperature of the electric drive circuit with a third preset temperature to determine a second temperature regulation requirement corresponding to the electric drive circuit; the temperature adjustment demand is determined based on the first temperature adjustment demand and the second temperature adjustment demand.

In some examples, if the temperature adjustment requirement includes reducing the temperature requirement of the power battery and the first heat exchanger is in a failure state, the generating module 802 is further configured to take a first electric drive cooling branch in the electric drive cooling circuit as a first initial circuit, take an electric drive cooling main in the electric drive cooling circuit as a second initial circuit, and take the power battery temperature control circuit as a third initial circuit according to the temperature requirement of the power battery; and generating internal connection instructions for connecting the first initial circuit, the second initial circuit and the third initial circuit according to the external communication relation between the first initial circuit, the second initial circuit and the third initial circuit and the six-way valve, so that the first initial circuit, the second initial circuit and the third initial circuit are communicated through the six-way valve to form a target circuit.

In some examples, if the temperature adjustment requirement includes a temperature requirement for increasing the temperature of the power battery and a temperature requirement for decreasing the temperature of the electric drive circuit, the generating module 802 is further configured to take the second electric drive cooling branch in the electric drive cooling circuit as a first initial circuit, take the electric drive cooling main in the electric drive cooling circuit as a second initial circuit, and take the power battery temperature control circuit as a third initial circuit according to the temperature requirement for decreasing the temperature requirement of the electric drive circuit and the temperature requirement for decreasing the electric drive circuit; and generating internal connection instructions for connecting the first initial circuit, the second initial circuit and the third initial circuit according to the external communication relation between the first initial circuit, the second initial circuit and the third initial circuit and the six-way valve, so that the first initial circuit, the second initial circuit and the third initial circuit are communicated through the six-way valve to form a target circuit.

In some examples, if the temperature adjustment requirement includes reducing the temperature of the power battery and reducing the temperature of the electric drive circuit, and the temperature of the electric drive circuit is higher than the temperature of the power battery, the generating module 802 is further configured to take the first electric drive cooling branch in the electric drive cooling circuit as a first initial circuit and take the electric drive cooling main in the electric drive cooling circuit as a second initial circuit according to the temperature requirement of the electric drive circuit; taking the power battery temperature control loop as a third initial loop according to the temperature of the reduced electric drive circuit; according to the external communication relation between the first initial loop and the second initial loop and the six-way valve, generating a first internal connection instruction for communicating the first initial loop and the second initial loop, so that the first initial loop and the second initial loop are communicated through the six-way valve to form a first target loop; and generating a second internal connection instruction communicated with the third initial circuit according to the external communication relation of the third initial circuit and the six-way valve, so that the third initial circuit is communicated through the six-way valve to form a second target circuit.

According to the technical scheme provided by the embodiment of the application, the determined initial loop can form the target loop meeting the temperature control requirement through different communication modes of the six-way valve, so that the functional requirements of the power battery and the electric drive circuit under different working conditions are realized.

Fig. 9 is a schematic diagram of an electronic device 9 provided in an embodiment of the present application. As shown in fig. 9, the electronic apparatus 9 of this embodiment includes: a processor 901, a memory 902 and a computer program 903 stored in the memory 902 and executable on the processor 901. The steps of the various method embodiments described above are implemented when the processor 901 executes the computer program 903. Alternatively, the processor 901 performs the functions of the modules/units in the above-described apparatus embodiments when executing the computer program 903.

The electronic device 9 may be a desktop computer, a notebook computer, a palm computer, a cloud server, or the like. The electronic device 9 may include, but is not limited to, a processor 901 and a memory 902. It will be appreciated by those skilled in the art that fig. 9 is merely an example of the electronic device 9 and is not limiting of the electronic device 9 and may include more or fewer components than shown, or different components.

The processor 901 may be a central processing unit (Central Processing Unit, CPU) or other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like.

The memory 902 may be an internal storage unit of the electronic device 9, for example, a hard disk or a memory of the electronic device 9. The memory 902 may also be an external storage device of the electronic device 9, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like, which are provided on the electronic device 9. The memory 902 may also include both internal and external memory units of the electronic device 9. The memory 902 is used to store computer programs and other programs and data required by the electronic device.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit.

The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application implements all or part of the flow in the methods of the above embodiments, or may be implemented by a computer program to instruct related hardware, and the computer program may be stored in a computer readable storage medium, where the computer program may implement the steps of the respective method embodiments described above when executed by a processor. The computer program may comprise computer program code, which may be in source code form, object code form, executable file or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the area and the patent practice, for example, in some areas, the computer readable medium does not include the electric carrier signal and the telecommunication signal according to the area requirements and the patent practice.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. The vehicle thermal management control method is characterized in that the vehicle thermal management control method is applied to a vehicle, a six-way valve, an electric drive circuit, a power battery, an electric drive cooling circuit and a power battery temperature control circuit are arranged on the vehicle, the electric drive cooling circuit is used for reducing the temperature of the electric drive circuit, the power battery temperature control circuit is used for adjusting the temperature of the power battery, and at least one or more external ports of the six-way valve are communicated with the electric drive cooling circuit and the power battery temperature control circuit; the method comprises the following steps:

acquiring the temperature of the electric drive circuit and the temperature of the power battery, and determining the temperature regulation requirement of the current vehicle according to the temperature of the electric drive circuit and the temperature of the power battery;

Determining an initial loop according to the temperature regulation requirement, the electric drive cooling loop and the power battery temperature control loop, and generating an internal connection instruction according to the initial loop, wherein the internal connection instruction is used for controlling the internal communication mode of the six-way valve;

and sending the internal connection instruction to the six-way valve, and controlling the six-way valve to connect an internal port according to the internal connection instruction so that the initial loop is communicated to form a target loop.

2. The method according to claim 1, characterized in that the power cell temperature control circuit is provided with a first heat exchanger for reducing the temperature of the cooling liquid in the power cell temperature control circuit and a second heat exchanger for increasing the temperature of the cooling liquid in the power cell temperature control circuit;

the electrically driven cooling circuit includes: the cooling system comprises an electric drive cooling main circuit, a first electric drive cooling branch circuit and a second electric drive cooling branch circuit, wherein a radiator is arranged on the first electric drive cooling branch circuit and used for reducing the temperature of cooling liquid in the first electric drive cooling branch circuit, an output port of the first electric drive cooling branch circuit is connected with an input port of the electric drive cooling main circuit, and an output port of the second electric drive cooling branch circuit is connected with an input port of the electric drive cooling main circuit.

3. The method of claim 2, wherein the first heat exchanger and the second heat exchanger are connected in sequence, and an output port of the second heat exchanger is in communication with a first common port of the first heat exchanger; at least one or more external ports of the six-way valve are in communication with the electrically driven cooling circuit and the power cell temperature control circuit, comprising:

the first port of the six-way valve is communicated with the output port of the electric drive cooling main circuit;

the second port of the six-way valve is communicated with the input port of the first electric drive cooling branch;

the third port of the six-way valve is communicated with the input port of the power battery temperature control loop;

the fourth port of the six-way valve is communicated with the second common port of the first heat exchanger;

the fifth port of the six-way valve is communicated with the input port of the second electric drive cooling branch;

the sixth port of the six-way valve communicates with the first common port of the first heat exchanger.

4. The method of claim 2, wherein determining the current vehicle temperature regulation demand based on the temperature of the electric drive circuit and the temperature of the power battery comprises:

Comparing the temperature of the power battery with a first preset temperature and a second preset temperature, and determining a first temperature regulation requirement corresponding to the power battery, wherein the second preset temperature is higher than the first preset temperature;

comparing the temperature of the electric drive circuit with a third preset temperature, and determining a second temperature regulation requirement corresponding to the electric drive circuit;

the temperature adjustment demand is determined based on the first temperature adjustment demand and the second temperature adjustment demand.

5. The method of claim 2, wherein if the temperature regulation demand includes reducing the temperature demand of the power battery and the first heat exchanger is in a fault state, determining an initial circuit based on the temperature regulation demand, the electric drive cooling circuit, and the power battery temperature control circuit, and generating an internal connection command based on the initial circuit, comprises:

according to the temperature requirement of the power battery, taking the first electric drive cooling branch in the electric drive cooling circuit as a first initial circuit, taking the electric drive cooling main circuit in the electric drive cooling circuit as a second initial circuit and taking the power battery temperature control circuit as a third initial circuit;

And generating the internal connection instruction for communicating the first initial circuit, the second initial circuit and the third initial circuit according to the external communication relation between the first initial circuit, the second initial circuit and the third initial circuit and the six-way valve, so that the first initial circuit, the second initial circuit and the third initial circuit are communicated through the six-way valve to form the target circuit.

6. The method of claim 2, wherein if the temperature regulation requirement includes increasing a temperature requirement of the power battery and decreasing a temperature requirement of the electric drive circuit, determining an initial circuit based on the temperature regulation requirement, the electric drive cooling circuit, and the power battery temperature control circuit, and generating an internal connection command based on the initial circuit, comprises:

according to the temperature requirement of the electric drive circuit and the temperature requirement of the electric drive circuit, taking the second electric drive cooling branch in the electric drive cooling circuit as a first initial circuit, taking the electric drive cooling main circuit in the electric drive cooling circuit as a second initial circuit and taking the power battery temperature control circuit as a third initial circuit;

7. The method of claim 2, wherein if the temperature regulation requirement includes reducing the temperature of the power battery and reducing the temperature of the electric drive circuit, and the temperature of the electric drive circuit is higher than the temperature of the power battery, determining an initial circuit based on the temperature regulation requirement, the electric drive cooling circuit, and a power battery temperature control circuit, and generating an internal connection command based on the initial circuit, comprises:

according to the temperature requirement of the electric drive circuit, taking the first electric drive cooling branch in the electric drive cooling circuit as a first initial circuit and taking the electric drive cooling main circuit in the electric drive cooling circuit as a second initial circuit;

Taking the power battery temperature control loop as a third initial loop according to the temperature of the electric drive circuit;

generating a first internal connection instruction for communicating the first initial circuit and the second initial circuit according to the external communication relation between the first initial circuit and the second initial circuit and the six-way valve, so that the first initial circuit and the second initial circuit are communicated through the six-way valve to form a first target circuit;

and generating a second internal connection instruction communicated with the third initial circuit according to the external communication relation between the third initial circuit and the six-way valve, so that the third initial circuit is communicated with the six-way valve to form a second target circuit.

8. A vehicle thermal management control device, which is characterized in that the device is applied to a vehicle, a six-way valve, an electric drive circuit, a power battery, an electric drive cooling circuit and a power battery temperature control circuit are arranged on the vehicle, the electric drive cooling circuit is used for reducing the temperature of the electric drive cooling circuit, the power battery temperature control circuit is used for adjusting the temperature of the power battery, and at least one or more external ports of the six-way valve are communicated with the electric drive cooling circuit and the power battery temperature control circuit; the device comprises:

The acquisition module is used for acquiring the temperature of the electric drive circuit and the temperature of the power battery and determining the temperature regulation requirement of the current vehicle according to the temperature of the electric drive circuit and the temperature of the power battery;

the generating module is used for determining an initial loop according to the temperature regulation requirement, the electric drive cooling loop and the power battery temperature control loop, and generating an internal connection instruction according to the initial loop, wherein the internal connection instruction is used for controlling the internal communication mode of the six-way valve;

and the sending module is used for sending the internal connection instruction to the six-way valve, and controlling the six-way valve to connect the internal port according to the internal connection instruction so that the initial loop is communicated to form a target loop.

9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 7 when the computer program is executed.

10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any one of claims 1 to 7.