Vehicle thermal management system, control method and device thereof, electronic equipment and vehicle

Abstract

The invention discloses a vehicle thermal management system, a control method and device thereof, electronic equipment and a vehicle. The system comprises a first switch valve, a first water pump, a kettle, a second water pump and a preset loop of a second switch valve which are sequentially connected end to end, and a first fluid monitoring device is arranged on a flow path between the first switch valve and the first water pump; a second fluid monitoring device is arranged on a flow path between the second switch valve and the second water pump; one end of the third switch valve is connected with one end, far away from the first water pump, of the first switch valve, and the other end of the third switch valve is communicated with the atmosphere; the system further comprises a controller in control connection with the first switch valve, the second switch valve and the target device, and after the controller obtains a vehicle collision signal, the controller conducts down-flow control on the first switch valve, the second switch valve and the target device according to the vehicle collision signal and monitoring data of the fluid monitoring device. The target device comprises at least one of a third switch valve, a first water pump and a second water pump.

Description

Technical Field

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

[0002] When a vehicle is involved in a collision, the components of the thermal management system may be damaged and cause fluid leakage. Once these leaked fluids, whether coolant or other media, come into contact with damaged key components such as batteries, motors or integrated modules, they may cause physical corrosion or complex chemical reactions, leading to secondary accidents or increasing the difficulty and cost of secondary repairs. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the purpose of the present invention is to provide a vehicle thermal management system and a control method, device, electronic equipment, and vehicle thereof. The system can reduce the damage and leakage of thermal management system parts in vehicle collision accidents and improve vehicle safety.

[0004] To achieve the above-mentioned purpose, a first embodiment of the present invention proposes a vehicle thermal management system, including: a preset loop and a preset flow path; the preset loop includes a first switch valve, a first water pump, a kettle, a second water pump and a second switch valve connected in sequence end to end, a first fluid monitoring device is provided on the flow path between the first switch valve and the first water pump, and a second fluid monitoring device is provided on the flow path between the second switch valve and the second water pump; the preset flow path includes a third switch valve, one end of the third switch valve is connected to an end of the first switch valve away from the first water pump, and the other end of the third switch valve is connected to the atmosphere; wherein the vehicle thermal management system also includes a controller, the controller is controlled and connected to the first switch valve, the second switch valve and a target device, and after obtaining a vehicle collision signal, the controller can perform flow reduction control on the first switch valve, the second switch valve and the target device according to the vehicle collision signal and the monitoring data of the first fluid monitoring device and the second fluid monitoring device, and the target device includes at least one of the third switch valve, the first water pump and the second water pump.

[0005] In addition, the vehicle thermal management system of the above embodiment of the present invention may also have the following additional technical features:

[0006] According to one embodiment of the present invention, the preset loop also includes: a fourth switch valve; one end of the fourth switch valve is connected to an end of the first water pump away from the kettle, and the other end of the fourth switch valve is connected to an end of the second water pump away from the kettle; wherein the fourth switch valve is used to establish a bypass of the preset loop to perform thermal management of the vehicle through the bypass.

[0007] To achieve the above-mentioned purpose, a second aspect of the present invention provides a control method, which is used for a controller in a vehicle thermal management system. The vehicle thermal management system includes a preset loop and a preset flow path. The preset loop includes a first switch valve, a first water pump, a kettle, a second water pump and a second switch valve connected in sequence end to end. The preset flow path includes a third switch valve, one end of the third switch valve is connected to an end of the first switch valve away from the first water pump, and the other end of the third switch valve is connected to the atmosphere. The controller is controlled and connected to the first switch valve, the second switch valve and a target device. The method includes: after obtaining a vehicle collision signal, obtaining first monitoring data of the flow path between the first switch valve and the first water pump, and obtaining second monitoring data of the flow path between the second switch valve and the second water pump; determining a target device and a target control strategy according to the vehicle collision signal, the first monitoring data and the second monitoring data, and performing flow reduction control on the first switch valve, the second switch valve and the target device according to the target control strategy to reduce leakage when there is a pipeline damage in the preset loop; wherein the target device includes at least one of the third switch valve, the first water pump and the second water pump.

[0008] In addition, the control method of the above embodiment of the present invention may also have the following additional technical features:

[0009] According to one embodiment of the present invention, the third switch valve is normally closed, the first monitoring data includes first liquid monitoring data and first pressure monitoring data, and the second monitoring data includes second liquid monitoring data and second pressure monitoring data; the target device and the target control strategy are determined according to the vehicle collision signal, the first monitoring data and the second monitoring data, and the target device is controlled to reduce the flow according to the target control strategy, including: if the type of the vehicle collision signal is a vehicle collision prediction signal, the first water pump and the second water pump are controlled to pump the liquid in the flow path into the kettle, and the third switch valve is controlled to open; when the first liquid monitoring data and the second liquid monitoring data meet the first preset condition, the first switch valve and the second switch valve are controlled to close, and the first water pump and the second water pump are controlled to stop working; if the first pressure monitoring data and the second pressure monitoring data do not meet the second preset condition, it is determined that there is pipeline damage in the preset loop, and the current states of the first switch valve, the second switch valve, the third switch valve, the first water pump and the second water pump are maintained.

[0010] According to one embodiment of the present invention, the first monitoring data includes first liquid monitoring data and first pressure monitoring data, and the second monitoring data includes second liquid monitoring data and second pressure monitoring data; the target device and the target control strategy are determined according to the vehicle collision signal, the first monitoring data and the second monitoring data, and the target device is controlled to reduce the flow according to the target control strategy, including: if the type of the vehicle collision signal is the vehicle collision end signal, the first pressure monitoring data and the second pressure monitoring data are compared respectively before and after receiving the vehicle collision signal; if the comparison result meets the third preset condition, it is determined that there is pipeline damage in the preset loop, and the first water pump and the second water pump are controlled to pump the liquid in the flow path into the kettle; when the first liquid monitoring data and the second liquid monitoring data meet the first preset condition, the first switch valve and the second switch valve are controlled to be closed, and the first water pump and the second water pump are controlled to stop working.

[0011] According to one embodiment of the present invention, the preset loop also includes a fourth switch valve, one end of the fourth switch valve is connected to an end of the first water pump away from the kettle, the other end of the fourth switch valve is connected to an end of the second water pump away from the kettle, and the fourth switch valve is normally closed; the method also includes: after determining that there is pipeline damage in the preset loop, and controlling the first switch valve and the second switch valve to close, and controlling the first water pump and the second water pump to stop working, controlling the fourth switch valve to open, and controlling the first water pump and the second water pump to return to the state when the vehicle collision signal is received.

[0012] According to one embodiment of the present invention, the vehicle collision signal includes a vehicle collision prediction signal and a vehicle collision end signal; the vehicle collision prediction signal is obtained through the vehicle controller or acceleration sensor of the vehicle; the vehicle collision end signal is obtained by delaying a preset time after the vehicle controller or the vehicle collision.

[0013] To achieve the above-mentioned purpose, a third aspect of the present invention provides a non-temporary computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the above-mentioned method when executed by a processor.

[0014] To achieve the above objectives, a fourth aspect of the present invention proposes a vehicle thermal management system control device, including a memory, a processor, and a computer program stored in the memory, and when the processor executes the computer program, the above method is implemented.

[0015] In order to achieve the above-mentioned purpose, a fifth aspect of the present invention proposes a vehicle, characterized in that it includes: the above-mentioned vehicle thermal management system; and the above-mentioned vehicle thermal management system control device.

[0016] The vehicle thermal management system and its control method, device, electronic equipment, and vehicle of the embodiments of the present invention achieve safety control according to the vehicle collision signal by adding a switch valve, a fluid monitoring device, and a pressure sensor, thereby reducing the damage and leakage of thermal management system parts in vehicle collision accidents and improving vehicle safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural block diagram of a vehicle thermal management system according to an embodiment of the present invention;

[0018] Figure 2 is a component structure diagram of a vehicle thermal management system according to an embodiment of the present invention;

[0019] Figure 3 is a component structure diagram of a vehicle thermal management system according to another embodiment of the present invention;

[0020] Figure 4 is a flow chart of a vehicle thermal management system control method according to a first embodiment of the present invention;

[0021] Figure 5 is a flow chart of a vehicle thermal management system control method according to a second embodiment of the present invention;

[0022] Figure 6 is a flow chart of a vehicle thermal management system control method according to a third embodiment of the present invention;

[0023] Figure 7is a structural block diagram of a vehicle thermal management system control device according to an embodiment of the present invention;

[0024] Figure 8 1 is a structural block diagram of a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] The following describes a vehicle thermal management system and a control method and device thereof, as well as an electronic device and a vehicle according to embodiments of the present invention with reference to the accompanying drawings.

[0027] Figure 1 1 is a block diagram of a vehicle thermal management system according to an embodiment of the present invention.

[0028] like Figure 1 As shown, the vehicle thermal management system 100 includes: a preset loop 101 and a preset flow path 102; the preset loop 101 includes a first switch valve 1011, a first water pump 1012, a kettle 1013, a second water pump 1014 and a second switch valve 1015 connected in sequence end to end, a first fluid monitoring device 1017 is provided on the flow path between the first switch valve 1011 and the first water pump 1012, and a second fluid monitoring device 1018 is provided on the flow path between the second switch valve 1015 and the second water pump 1014; the preset flow path 102 includes a third switch valve 1021, a first switch valve 1021 and a second switch valve 1021. The end is connected to one end of the first switch valve 1011 away from the first water pump 1012, and the other end of the third switch valve 1021 is connected to the atmosphere; wherein, the vehicle thermal management system also includes a controller, which is controlled and connected to the first switch valve 1011, the second switch valve 1015 and the target device. After obtaining the vehicle collision signal, the controller can perform flow reduction control on the target device according to the vehicle collision signal and the monitoring data of the first fluid monitoring device 1017 and the second fluid monitoring device 1018. The target device includes at least one of the third switch valve 1021, the first water pump 1012 and the second water pump 1014.

[0029] Specifically, the vehicle thermal management system 100 includes a preset loop 101 and a preset flow path 102, wherein the preset loop 101 includes a first switch valve 1011, a first water pump 1012, a kettle 1013, a second water pump 1014, and a second switch valve 1015 connected end to end. By setting the preset loop 101, when the controller obtains a vehicle collision signal, it can control the flow reduction of the target device according to the vehicle collision signal and the monitoring data of the first fluid monitoring device 1017 and the second fluid monitoring device 1018.

[0030] The flow reduction control includes controlling the first switch valve 1011, the second switch valve 1015 and the target device to reduce the amount of liquid in the flow path of the vehicle thermal management system 101, and the flow path includes the flow path of other parts of the vehicle thermal management system 100 connected to the kettle 1013 through the first switch valve 1011 and the second switch valve 1015. That is, the first switch valve 1011 and the second switch valve 1015 are connected to the kettle 1013 at one end, and the other end is connected to other parts of the vehicle thermal management system 100 (not shown in the figure), and the other parts of the vehicle thermal management system 100 can be all parts of the vehicle thermal management system 100 that support connection to the kettle 1013 through the first switch valve 1011 and the second switch valve 1015. Through the flow reduction control, the liquid originally existing in the flow path of the vehicle thermal management system 100 is removed from the flow path of the preset loop 101, for example, the liquid is transferred to the kettle 1013.

[0031] Specifically, the first switch valve 1011 and the second switch valve 1015 are in the open state by default. When it is detected that the vehicle has collided or is about to collide, at least one of the first water pump 1012 and the second water pump 1014 is driven to pump the liquid in the vehicle thermal management system 100 into the kettle 1013 through at least one of the first switch valve 1011 and the second switch valve 1015, and then the first switch valve 1011 and the second switch valve 1015 are closed, thereby locking the liquid in the vehicle thermal management system 100 in the kettle 1013.

[0032] The third switch valve 1021 may also be disposed at other locations, for example, at an end of the second switch valve 1015 away from the second water pump 1014 .

[0033] Therefore, by expelling the liquid from the flow path when the vehicle collides or is about to collide, it is possible to prevent the leaked liquid from coming into contact with damaged key components such as batteries, motors or integrated modules, thereby improving vehicle safety.

[0034] However, since the capacity of the kettle 1013 is limited and the speed of transferring the liquid to the kettle 1013 may not meet the requirements, a preset flow path 102 is also set. The preset flow path 102 includes a third switch valve 1021. One end of the third switch valve 1021 is respectively connected to an end of the first switch valve 1011 away from the first water pump 1012 and an end of the second switch valve 1015 away from the second water pump 1014, and the other end of the third switch valve 1021 is connected to the atmosphere.

[0035] By setting the third switch valve 1021, when the kettle 1013 cannot meet the demand, the third switch valve 1021 can be opened, so that the flow path of the vehicle thermal management system 100 is connected to the atmosphere, and the liquid in the vehicle thermal management system 100 can be discharged into the surrounding environment through the third switch valve 1021. At this time, it is only necessary to set the discharge port away from key components such as batteries, motors or integrated modules to further improve the safety of the vehicle.

[0036] It can be seen that the vehicle thermal management system 100 of the embodiment of the present invention realizes safety control according to the vehicle collision signal by adding a switch valve and a fluid monitoring device, reduces the damage and leakage of thermal management system parts in vehicle collision accidents, and improves vehicle safety.

[0037] See below Figure 2 The specific embodiment shown is described below.

[0038] Specifically, in Figure 2 In the specific embodiment shown, the first fluid monitoring device 1017 includes a first fluid sensor 103 and a first pressure sensor 104, and the second fluid monitoring device 1018 includes a second fluid sensor 105 and a second pressure sensor 106. Other parts of the vehicle thermal management system 100 may be arranged in Figure 2 That is, in the vehicle thermal management system 100, a first liquid sensor 103, a first pressure sensor 104, a second liquid sensor 105, and a second pressure sensor 106 are provided, the first liquid monitoring data is obtained through the first liquid sensor 103, the second liquid monitoring data is obtained through the second liquid sensor 105, the first pressure monitoring data is obtained through the first pressure sensor, and the second pressure monitoring data is obtained through the second pressure sensor.

[0039] When it is monitored that the vehicle has collided or is about to collide, liquid monitoring data in the preset loop 101 is obtained based on the first liquid sensor 103 and the second liquid sensor 105, and pressure monitoring data in the preset loop 101 is obtained based on the first pressure sensor 104 and the second pressure sensor 106.

[0040] After obtaining the liquid monitoring data and the pressure monitoring data, at least one of the first water pump 1012, the second water pump 1014, and the third switch valve 1021 can be controlled according to the liquid monitoring data and the pressure monitoring data to discharge the liquid in the first flow path 101 into the kettle 1013, or discharge the liquid in the first flow path 101 into the environment, or discharge the liquid in the first flow path 101 into the kettle 1013 and the environment.

[0041] Specifically, whether there is liquid in the flow path of the preset loop 101 can be determined by at least one of the first liquid sensor 103 and the second liquid sensor 105, and the pressure of the liquid in the flow path of the preset loop 101 can be determined by at least one of the first pressure sensor 104 and the second pressure sensor 106.

[0042] For example, if it is detected that the vehicle is about to collide, at least one of the first water pump 1012 and the second water pump 1014 can be driven in advance to pump the liquid in the vehicle thermal management system 100 into the kettle 1013 before the collision occurs, and the first switch valve 1011 and the second switch valve 1015 can be closed. At the same time, the third switch valve 1021 can also be opened.

[0043] It should be noted that if it is detected that the vehicle has collided, opening the third switch valve 1021 may cause secondary damage. For example, if the pressure in the vehicle thermal management system 100 is too high due to the collision, opening the third switch valve 1021 may cause secondary damage due to high-speed liquid spraying. Therefore, when it is detected that the vehicle has collided, the third switch valve 1021 is not opened. At this time, for safety reasons, the first water pump 1012 and the second water pump 1014 can be set to work at full speed.

[0044] In some embodiments, see Figure 3 In the specific embodiment shown, the preset loop 101 further includes: a fourth switch valve 1016; one end of the fourth switch valve 1016 is connected to an end of the first water pump 1012 away from the kettle 1013, and the other end of the fourth switch valve is connected to an end of the second water pump away from the kettle 1013. The fourth switch valve is used to establish a bypass 101 of the preset loop to perform thermal management on the vehicle through the bypass.

[0045] Specifically, the other parts of the vehicle thermal management system 100 can be connected to the kettle 1013 not only through the first switch valve 1011 and the second switch valve 1015, but also through the fourth switch valve 1016. For example, the other parts of the vehicle thermal management system 100 can also be connected to the kettle 1013. Figure 3In area 2 or area 3. With this arrangement, the vehicle thermal management system 100 can operate even if both the first switching valve 1011 and the second switching valve 1015 are closed.

[0046] It should be noted that in Figure 3 In the figure, the connection between the fourth switch valve 1016 and other parts is only drawn for the convenience of description. In actual application, taking the other parts of the above-mentioned vehicle thermal management system 100 being arranged in area 2 as an example, the connection between the fourth switch valve 1016 and other parts should be able to achieve at least partial overlap between area 1 and area 1.

[0047] Optionally, the vehicle thermal management system 100 may include a plurality of fourth switch valves 1015, and the other parts of the vehicle thermal management system 100 may be divided into a plurality of modules, each module corresponds to a fourth switch valve 1015, and each module is connected to the kettle 1013 through the corresponding fourth switch valve 1015. At this time, if the vehicle collides, the undamaged modules among the plurality of modules may be known, and the corresponding fourth switch valve 1015 may be controlled to open so that the module can continue to work.

[0048] Therefore, by setting the fourth switch valve 1016, when the vehicle collides and the vehicle thermal management system 100 is damaged, the passage can be re-established through the fourth switch valve 1016, so that the vehicle thermal management system 100 can still be put into use when a collision occurs.

[0049] The third switch valve 1021 and the fourth switch valve 1016 are both set to be normally closed.

[0050] In some embodiments, after obtaining a vehicle collision signal, first monitoring data of the flow path between the first switch valve 1011 and the first water pump 1012 is obtained, and second monitoring data of the flow path between the second switch valve 1015 and the second water pump 1014 is obtained; based on the vehicle collision signal, the first monitoring data and the second monitoring data, the target device and the target control strategy are determined, and the first switch valve 1011, the second switch valve 1015 and the target device are subjected to flow reduction control according to the target control strategy to reduce leakage when there is pipeline damage in the preset loop; wherein, the target device includes at least one of the third switch valve 1021, the first water pump 1012 and the second water pump 1014.

[0051] In some embodiments, the third switch valve 1021 is normally closed, the first monitoring data includes first liquid monitoring data and first pressure monitoring data, and the second monitoring data includes second liquid monitoring data and second pressure monitoring data; according to the vehicle collision signal, the first monitoring data and the second monitoring data, the target device and the target control strategy are determined, and the target device is subjected to flow reduction control according to the target control strategy, including: if the type of the vehicle collision signal is a vehicle collision prediction signal, that is, the vehicle is about to collide, then the first water pump 1012 and the second water pump 1014 are controlled to pump the liquid in the flow path into the kettle 10 13, and control the third switch valve 1021 to open. When the first liquid monitoring data and the second liquid monitoring data meet the first preset condition, control the first switch valve 1011 and the second switch valve 1015 to close, and control the first water pump 1012 and the second water pump 1014 to stop working. If the first pressure monitoring data and the second pressure monitoring data do not meet the second preset condition, it is determined that there is a pipeline damage in the preset loop 101, and the current states of the first switch valve 1011, the second switch valve 1015, the third switch valve 1021, the first water pump 1012 and the second water pump 1014 are maintained.

[0052] Thus, when the vehicle is about to collide, the liquid in the flow path of the vehicle thermal management system 100 can be pumped into the kettle 1013, thereby improving the safety of the vehicle.

[0053] In some embodiments, the first monitoring data includes first liquid monitoring data and first pressure monitoring data, and the second monitoring data includes second liquid monitoring data and second pressure monitoring data; according to the vehicle collision signal, the first monitoring data and the second monitoring data, the target device and the target control strategy are determined, and the target device is controlled to reduce the flow according to the target control strategy, including: if the type of the vehicle collision signal is a vehicle collision end signal, the first pressure monitoring data and the second pressure monitoring data are compared before and after receiving the vehicle collision signal; if the comparison result meets the third preset condition, it is determined that there is a pipeline damage in the preset loop 101, and the first water pump 1012 and the second water pump 1014 are controlled to pump the liquid in the flow path into the kettle; when the first liquid monitoring data and the second liquid monitoring data meet the first preset condition, the first switch valve 1011 and the second switch valve 1015 are controlled to close, and the first water pump 1012 and the second water pump 1014 are controlled to stop working.

[0054] Thus, when a collision occurs in the vehicle, the liquid in the flow path of the vehicle thermal management system 100 can be pumped into the kettle 1013, thereby improving the safety of the vehicle.

[0055] In some embodiments, the preset loop 101 also includes a fourth switch valve 1016, one end of the fourth switch valve 1016 is connected to the end of the first water pump 1012 away from the kettle 1013, the other end of the fourth switch valve 1016 is connected to the end of the second water pump 1014 away from the kettle 1013, and the fourth switch valve 1016 is normally closed; after determining that there is a pipeline damage in the preset loop 101, and controlling the first switch valve 1011 and the second switch valve 1015 to close, and controlling the first water pump 1012 and the second water pump 1014 to stop working, the fourth switch valve 1016 is controlled to open, and the first water pump 1012 and the second water pump 1014 are controlled to restore to the state when the vehicle collision signal is received.

[0056] Therefore, it can be achieved that when the vehicle collides, the vehicle thermal management system 100 can still be put into use.

[0057] In some embodiments, the vehicle collision signal includes a vehicle collision prediction signal and a vehicle collision end signal; wherein, the vehicle collision prediction signal is obtained through the vehicle controller or acceleration sensor of the vehicle; the vehicle collision end signal is obtained through the vehicle controller or a preset delay time after the vehicle collision.

[0058] The working mode of the above-mentioned vehicle thermal management system 100 is explained below with reference to specific examples.

[0059] Under normal circumstances, the vehicle thermal management system 100 operates normally, and the third switch valve 1021 is normally closed. Moreover, under normal circumstances, in the preset loop 101, when the first water pump 1012 and the second water pump 1014 both rotate forward, the liquid flows from the kettle 1013 to the first switch valve 1011, then from the first switch valve 1011 to other parts of the vehicle thermal management system 100, then from other parts of the vehicle thermal management system 100 to the second switch valve 1015, and then from the second switch valve 1015 to the kettle 1013.

[0060] When the vehicle collision prediction signal is received, it indicates that the vehicle is about to collide. At this time, the vehicle thermal management system 100 starts the active control method, that is, the vehicle thermal management system 100 can work in the following manner:

[0061] Specifically, first, the first water pump 1012 rotates in reverse and the second water pump 1014 rotates in forward direction, so that the liquid in the flow path of the vehicle thermal management system 100 flows to the water pump through the first switch valve 1011 and the second switch valve 1015 at the same time.

[0062] After the water pump rotates as above, the third switch valve 1021 is opened to communicate with the atmosphere, and controls the rotation speed of the first water pump 1012 and the second water pump 1014 to continuously increase. When the first liquid sensor 103 and the second liquid sensor 105 both detect that there is no liquid, the first switch valve 1011, the second switch valve 1015, the first water pump 1012, and the second water pump 1014 are closed.

[0063] After the collision, the first pressure sensor 104 and the second pressure sensor 106 monitor the pressure. When the monitored pressure is not equal to the ambient pressure, it indicates that the flow path of the vehicle thermal management system 100 is not damaged. The system is reset, exhaust is performed, and power is turned on again.

[0064] When the monitored pressure is equal to the ambient pressure, it indicates that the flow path of the vehicle thermal management system 100 is damaged.

[0065] When the vehicle collision end signal is received, it indicates that the vehicle has collided. At this time, the vehicle thermal management system 100 starts the passive control method, that is, the vehicle thermal management system 100 can work in the following manner:

[0066] The first pressure sensor 104 and the second pressure sensor 106 continuously compare the collected data with the data at the previous moment.

[0067] When at a certain moment, the data collected at the current moment is inconsistent with the data collected at the previous moment, it is determined that the pipeline (i.e., the flow path of the above-mentioned vehicle thermal management system 100) is damaged. At this time, the first water pump 1012 reverses and the second water pump 1014 rotates forward, and the speed is continuously increased until the first liquid sensor 103 and the second liquid sensor 105 both detect that there is no liquid in the flow path. At this time, the first switch valve 1011, the second switch valve 1015, the first water pump 1012, and the second water pump 1014 are closed.

[0068] Optionally, the vehicle thermal management system 100 can also be configured to continuously execute the above-mentioned active control method and passive control method. That is, after receiving a vehicle collision prediction signal and executing the above-mentioned active control method, the above-mentioned passive control method can be automatically executed at preset time intervals to further avoid the vehicle thermal management system 100 from causing secondary damage to the vehicle and the user after a collision.

[0069] That is to say, in the above specific example, the first preset condition is that it is monitored that there is no liquid in the flow path of the vehicle thermal management system 100, the second preset condition is that the pressure in the flow path is equal to the ambient pressure, and the third preset condition is that the pressure at the latter moment is less than the pressure at the previous moment.

[0070] In summary, the vehicle thermal management system of the embodiment of the present invention achieves safety control according to the vehicle collision signal by adding a switching valve and a fluid monitoring device, thereby reducing the damage and leakage of thermal management system parts in a vehicle collision accident, and avoiding physical or chemical reactions caused by leakage, which may cause secondary accidents or secondary repairs (such as a large amount of coolant entering a damaged battery); by establishing a bypass, the vehicle can use the vehicle thermal management system in an emergency.

[0071] Figure 4 The present invention is a flow chart of a vehicle thermal management system control method according to an embodiment of the present invention.

[0072] The vehicle thermal management system control method is used for a controller in a vehicle thermal management system, the vehicle thermal management system includes a preset loop and a preset flow path, the preset loop includes a first switch valve, a first water pump, a kettle, a second water pump and a second switch valve connected in sequence end to end, the preset flow path includes a third switch valve, one end of the third switch valve is connected to an end of the first switch valve away from the first water pump, and the other end of the third switch valve is connected to the atmosphere, the controller is controlled and connected with the first switch valve, the second switch valve and the target device, such as Figure 4 As shown, the method includes:

[0073] S41, after obtaining the vehicle collision signal, obtaining first monitoring data of the flow path between the first switch valve and the first water pump, and obtaining second monitoring data of the flow path between the second switch valve and the second water pump.

[0074] S42, determining a target device and a target control strategy according to a vehicle collision signal, the first monitoring data and the second monitoring data, and performing flow reduction control on the first switch valve, the second switch valve and the target device according to the target control strategy to reduce leakage when there is pipeline damage in a preset loop.

[0075] The target device includes at least one of a third switch valve, a first water pump and a second water pump.

[0076] In some embodiments, the third switch valve is normally closed, the first monitoring data includes first liquid monitoring data and first pressure monitoring data, and the second monitoring data includes second liquid monitoring data and second pressure monitoring data; according to the vehicle collision signal, the first monitoring data and the second monitoring data, the target device and the target control strategy are determined, and the target device is controlled to reduce the flow according to the target control strategy, including: if the type of the vehicle collision signal is a vehicle collision prediction signal, then the first water pump and the second water pump are controlled to pump the liquid in the flow path into the kettle, and the third switch valve is controlled to open; when the first liquid monitoring data and the second liquid monitoring data meet the first preset condition, the first switch valve and the second switch valve are controlled to close, and the first water pump and the second water pump are controlled to stop working; if the first pressure monitoring data and the second pressure monitoring data do not meet the second preset condition, it is determined that there is pipeline damage in the preset loop, and the current status of the first switch valve, the second switch valve, the third switch valve, the first water pump and the second water pump are maintained.

[0077] In some embodiments, the first monitoring data includes first liquid monitoring data and first pressure monitoring data, and the second monitoring data includes second liquid monitoring data and second pressure monitoring data; according to the vehicle collision signal, the first monitoring data and the second monitoring data, the target device and the target control strategy are determined, and the target device is controlled to reduce the flow according to the target control strategy, including: if the type of the vehicle collision signal is a vehicle collision end signal, the first pressure monitoring data and the second pressure monitoring data are compared before and after receiving the vehicle collision signal; if the comparison result meets the third preset condition, it is determined that there is pipeline damage in the preset loop, and the first water pump and the second water pump are controlled to pump the liquid in the flow path into the kettle; when the first liquid monitoring data and the second liquid monitoring data meet the first preset condition, the first switch valve and the second switch valve are controlled to close, and the first water pump and the second water pump are controlled to stop working.

[0078] In some embodiments, the preset loop also includes a fourth switch valve, one end of the fourth switch valve is connected to the end of the first water pump away from the kettle, the other end of the fourth switch valve is connected to the end of the second water pump away from the kettle, and the fourth switch valve is normally closed; the method also includes: after determining that there is a pipeline damage in the preset loop, and controlling the first switch valve and the second switch valve to close, controlling the first water pump and the second water pump to stop working, controlling the fourth switch valve to open, and controlling the first water pump and the second water pump to return to the state when the vehicle collision signal is received.

[0079] In some embodiments, the vehicle collision signal includes a vehicle collision prediction signal and a vehicle collision end signal; wherein, the vehicle collision prediction signal is obtained through the vehicle controller or acceleration sensor of the vehicle; the vehicle collision end signal is obtained through the vehicle controller or a preset delay time after the vehicle collision.

[0080] It should be noted that the vehicle thermal management system to which the above vehicle thermal management system control method is applied may be the vehicle thermal management system 100 in the above embodiment. In this case, the first switch valve, the first water pump, the kettle, the second water pump, the second switch valve, and the third switch valve in the vehicle thermal management system to which the method is applied are the first switch valve 1011, the first water pump 1012, the kettle 1013, the second water pump 1014, the second switch valve 1015, and the third switch valve 1021 in the above vehicle thermal management system 100. Of course, the above vehicle thermal management system control method may also be applied in other vehicle thermal management systems, as long as the specific structure of the system can support the above vehicle thermal management system control method.

[0081] For other specific implementations of the above-mentioned vehicle thermal management system control method, reference may be made to the vehicle thermal management system 100 in the above-mentioned embodiment.

[0082] The vehicle thermal management system control method described above is described below in conjunction with the vehicle thermal management system 100 in the above embodiment.

[0083] Specifically, see Figure 5 and Figure 6 Under normal circumstances, the vehicle thermal management system 100 works normally, and the third switch valve 1021 is normally closed. Moreover, under normal circumstances, in the preset loop 101, the liquid flows from the kettle 1013 to the first switch valve 1011, then from the first switch valve 1011 to other parts of the vehicle thermal management system 100, then from other parts of the vehicle thermal management system 100 to the second switch valve 1015, and then from the second switch valve 1015 to the kettle 1013.

[0084] When the vehicle collision prediction signal is received, it indicates that the vehicle is about to collide. At this time, the vehicle thermal management system 100 starts the active control method, that is, the vehicle thermal management system 100 can work in the following manner:

[0085] Specifically, first, the first water pump 1012 rotates in reverse and the second water pump 1014 rotates in forward direction, so that the liquid in the flow path of the vehicle thermal management system 100 flows to the water pump through the first switch valve 1011 and the second switch valve 1015 at the same time.

[0086] After the water pump rotates as above, the third switch valve 1021 is opened to communicate with the atmosphere, and controls the rotation speed of the first water pump 1012 and the second water pump 1014 to continuously increase. When the first liquid sensor 103 and the second liquid sensor 105 both detect that there is no liquid, the first switch valve 1011, the second switch valve 1015, the first water pump 1012, and the second water pump 1014 are closed.

[0087] After the collision, the first pressure sensor 104 and the second pressure sensor 106 monitor the pressure. When the monitored pressure is not equal to the ambient pressure, it indicates that the flow path of the vehicle thermal management system 100 is not damaged. The system is reset, exhaust is performed, and power is turned on again.

[0088] When the monitored pressure is equal to the ambient pressure, it indicates that the flow path of the vehicle thermal management system 100 is damaged.

[0089] When the vehicle collision end signal is received, it indicates that the vehicle has collided. At this time, the vehicle thermal management system 100 starts the passive control method, that is, the vehicle thermal management system 100 can work in the following manner:

[0090] The first pressure sensor 104 and the second pressure sensor 106 continuously compare the collected data with the data at the previous moment.

[0091] When at a certain moment, the data collected at the current moment is inconsistent with the data collected at the previous moment, it is determined that the pipeline (i.e., the flow path of the above-mentioned vehicle thermal management system 100) is damaged. At this time, the first water pump 1012 reverses and the second water pump 1014 rotates forward, and the speed is continuously increased until the first liquid sensor 103 and the second liquid sensor 105 both detect that there is no liquid in the flow path. At this time, the first switch valve 1011, the second switch valve 1015, the first water pump 1012, and the second water pump 1014 are closed.

[0092] Optionally, the vehicle thermal management system 100 can also be configured to continuously execute the above-mentioned active control method and passive control method. That is, after receiving a vehicle collision prediction signal and executing the above-mentioned active control method, the above-mentioned passive control method can be automatically executed at preset time intervals to further avoid the vehicle thermal management system 100 from causing secondary damage to the vehicle and the user after a collision.

[0093] That is to say, in the above specific example, the first preset condition is that it is monitored that there is no liquid in the flow path of the vehicle thermal management system 100, the second preset condition is that the pressure in the flow path is equal to the ambient pressure, and the third preset condition is that the pressure at the latter moment is less than the pressure at the previous moment.

[0094] To summarize, the vehicle thermal management system control method of the embodiment of the present invention, through the above-mentioned vehicle thermal management system, adds a switch valve and a fluid monitoring device, realizes safety control according to the vehicle collision signal, reduces the damage and leakage of thermal management system parts in vehicle collision accidents, and avoids physical or chemical reactions caused by leakage, causing secondary accidents or secondary repairs (such as a large amount of coolant entering a damaged battery); by establishing a bypass, the vehicle can use the vehicle thermal management system in an emergency.

[0095] Based on the control method of the above embodiment, the present invention also proposes a non-transitory computer-readable storage medium.

[0096] In this embodiment, a computer program is stored on a non-transitory computer-readable storage medium, and when the computer program is executed by a processor, the above-mentioned control method is implemented.

[0097] Figure 7 It is a structural block diagram of a vehicle thermal management system control device according to an embodiment of the present invention.

[0098] like Figure 7 As shown, the vehicle thermal management system control device 900 includes: a processor 901 and a memory 903. The processor 901 and the memory 903 are connected, such as through a bus 902. Optionally, the vehicle thermal management system control device 900 may also include a transceiver 904. It should be noted that in actual applications, the transceiver 904 is not limited to one, and the structure of the vehicle thermal management system control device 900 does not constitute a limitation on the embodiments of the present invention.

[0099] The processor 901 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor 901 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0100] The bus 902 may include a path to transmit information between the above components. The bus 502 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 902 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0101] The memory 903 is used to store a computer program corresponding to the control method of the above embodiment of the present invention, and the computer program is controlled and executed by the processor 901. The processor 901 is used to execute the computer program stored in the memory 503 to implement the content shown in the above method embodiment.

[0102] Among them, the vehicle thermal management system control device 900 includes but is not limited to: mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 7 The vehicle thermal management system control device 900 shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0103] Figure 8 1 is a structural block diagram of a vehicle according to an embodiment of the present invention.

[0104] like Figure 8 As shown, the vehicle 1000 includes: the above-mentioned vehicle thermal management system 100; and the above-mentioned vehicle thermal management system control device 900.

[0105] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0106] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0108] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0109] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0110] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0111] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0112] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A vehicle thermal management system, characterized in that: include: Preset loops and preset flow paths; The preset loop includes a first switch valve, a first water pump, a kettle, a second water pump and a second switch valve connected in sequence end to end, a first fluid monitoring device is provided on the flow path between the first switch valve and the first water pump, and a second fluid monitoring device is provided on the flow path between the second switch valve and the second water pump; The preset flow path includes a third switch valve, one end of the third switch valve is connected to an end of the first switch valve away from the first water pump, and the other end of the third switch valve is connected to the atmosphere; Among them, the vehicle thermal management system also includes a controller, which is controlled and connected to the first switch valve, the second switch valve and the target device. After obtaining the vehicle collision signal, the controller can perform flow reduction control on the first switch valve, the second switch valve and the target device according to the vehicle collision signal and the monitoring data of the first fluid monitoring device and the second fluid monitoring device. The target device includes at least one of the third switch valve, the first water pump and the second water pump.

2. The vehicle thermal management system according to claim 1, characterized in that: The preset loop further includes: a fourth switch valve; one end of the fourth switch valve is connected to an end of the first water pump away from the kettle, and the other end of the fourth switch valve is connected to an end of the second water pump away from the kettle; The fourth switch valve is used to establish a bypass of the preset loop so as to perform thermal management on the vehicle through the bypass.

3. A vehicle thermal management system control method, characterized in that: The method is used for a controller in a vehicle thermal management system, the vehicle thermal management system includes a preset loop and a preset flow path, the preset loop includes a first switch valve, a first water pump, a kettle, a second water pump, and a second switch valve connected in sequence end to end, the preset flow path includes a third switch valve, one end of the third switch valve is connected to an end of the first switch valve away from the first water pump, and the other end of the third switch valve is connected to the atmosphere, the controller is control-connected to the first switch valve, the second switch valve, and the target device, and the method includes: After the vehicle collision signal is acquired, first monitoring data of the flow path between the first switch valve and the first water pump is acquired, and second monitoring data of the flow path between the second switch valve and the second water pump is acquired; Determine a target device and a target control strategy according to the vehicle collision signal, the first monitoring data, and the second monitoring data, and perform flow reduction control on the first switch valve, the second switch valve, and the target device according to the target control strategy to reduce leakage when there is a pipeline damage in the preset loop; Wherein, the target device includes at least one of the third switch valve, the first water pump and the second water pump.

4. The vehicle thermal management system control method according to claim 3, characterized in that: The third switch valve is normally closed, the first monitoring data includes first liquid monitoring data and first pressure monitoring data, and the second monitoring data includes second liquid monitoring data and second pressure monitoring data; the target device and the target control strategy are determined according to the vehicle collision signal, the first monitoring data and the second monitoring data, and the target device is subjected to flow reduction control according to the target control strategy, including: If the type of the vehicle collision signal is a vehicle collision prediction signal, controlling the first water pump and the second water pump to pump the liquid in the flow path into the kettle, and controlling the third switch valve to open; When the first liquid monitoring data and the second liquid monitoring data meet a first preset condition, the first switch valve and the second switch valve are controlled to be closed, and the first water pump and the second water pump are controlled to stop working; If the first pressure monitoring data and the second pressure monitoring data do not meet the second preset condition, it is determined that there is pipeline damage in the preset loop, and the current states of the first switch valve, the second switch valve, the third switch valve, the first water pump and the second water pump are maintained.

5. The vehicle thermal management system control method according to claim 3, characterized in that: The first monitoring data includes first liquid monitoring data and first pressure monitoring data, and the second monitoring data includes second liquid monitoring data and second pressure monitoring data; determining a target device and a target control strategy according to the vehicle collision signal, the first monitoring data, and the second monitoring data, and performing flow reduction control on the target device according to the target control strategy, including: If the type of the vehicle collision signal is the vehicle collision end signal, the first pressure monitoring data and the second pressure monitoring data are respectively compared before and after receiving the vehicle collision signal; If the comparison result meets the third preset condition, it is determined that there is a pipeline damage in the preset loop, and the first water pump and the second water pump are controlled to pump the liquid in the flow path into the kettle; When the first liquid monitoring data and the second liquid monitoring data meet a first preset condition, the first switch valve and the second switch valve are controlled to be closed, and the first water pump and the second water pump are controlled to stop working.

6. The vehicle thermal management system control method according to claim 4 or 5, characterized in that: The preset loop further includes a fourth switch valve, one end of the fourth switch valve is connected to an end of the first water pump away from the kettle, the other end of the fourth switch valve is connected to an end of the second water pump away from the kettle, and the fourth switch valve is normally closed; the method further includes: After determining that there is pipeline damage in the preset loop, and controlling the first switch valve and the second switch valve to close, and controlling the first water pump and the second water pump to stop working, the fourth switch valve is controlled to open, and the first water pump and the second water pump are controlled to return to the state when the vehicle collision signal is received.

7. The vehicle thermal management system control method according to claim 3, characterized in that: The vehicle collision signal includes a vehicle collision prediction signal and a vehicle collision end signal; Among them, the vehicle collision prediction signal is obtained through the vehicle controller or acceleration sensor of the vehicle; the vehicle collision end signal is obtained through the vehicle controller or the vehicle after a preset delay time after the collision.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 3 to 7 is implemented.

9. A vehicle thermal management system control device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory, wherein when the processor executes the computer program, the method according to any one of claims 3 to 7 is implemented.

10. A vehicle, characterized in that: include: The vehicle thermal management system according to claim 1 or 2; The vehicle thermal management system control device according to claim 9.

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