Vehicle temperature control method, device, computer equipment and storage medium

Abstract

The present application relates to a vehicle temperature control method, device, computer equipment and storage medium, wherein the method includes: obtaining temperature information collected in real time by a target thermistor; the target thermistor is set on a target sensitive device of a cabin host; according to the temperature information and a preset junction temperature threshold, a valve opening signal is determined, and the valve is controlled to open based on the opening signal so that the cooling medium in the cooling water circuit flows to the cabin host; according to the temperature information and the ambient temperature in the cabin host, a valve closing signal is determined, and the valve is controlled to close based on the closing signal so that the cooling medium in the cooling water circuit stops flowing to the cabin host. Through the present application, the problems of high cost, easy generation of condensed water in the cabin host, and risk of damage to the cabin host are solved, and low cost is achieved, and the risk of damage to the cabin host due to the generation of condensed water can be avoided.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicle technology, and in particular to a vehicle temperature control method, device, computer equipment and storage medium. Background Art

[0002] In order to ensure the normal operation and service life of each component in the vehicle, the vehicle's temperature control system is indispensable. The power battery and cockpit host in existing vehicles use two separate temperature control systems; among them, the cockpit host uses an aluminum sheet metal heat dissipation temperature control system; the power battery uses a liquid cooling temperature control system. However, with the increasing intelligence of new energy vehicles, the power consumption of the cockpit host is increasing, resulting in the original aluminum sheet metal heat dissipation temperature control system of the cockpit host being unable to meet the heat dissipation requirements. The current solution is to set up a separate liquid cooling temperature control method for the cockpit host. However, this method is costly and easily causes condensation water to form in the cockpit host, which poses a risk of damage.

[0003] The independent liquid cooling temperature control system used in the cockpit host in the related technology is costly and easily causes condensation in the cockpit host, posing a risk of damage to the cockpit host. No effective solution has been proposed so far. Summary of the invention

[0004] In this embodiment, a vehicle temperature control method, device, computer equipment and storage medium are provided to solve the problems in the related art that the cost is high, condensation water is easily generated in the cabin host, and there is a risk of damage to the cabin host.

[0005] In a first aspect, a vehicle temperature control method is provided in this embodiment, which is applicable to a vehicle temperature control system, wherein the temperature control system includes a cooling water circuit of a power battery, a valve, and a cabin host; the valve is arranged on the cooling water circuit; the method includes:

[0006] Acquire temperature information collected in real time by a target thermistor; the target thermistor is arranged on a target sensitive device of the cockpit host;

[0007] Determining an opening signal of the valve according to the temperature information and a preset junction temperature threshold, and controlling the valve to open based on the opening signal so that the cooling medium in the cooling water circuit flows to the cabin main engine;

[0008] A closing signal of the valve is determined according to the temperature information and the ambient temperature in the cockpit main engine, and the valve is controlled to close based on the closing signal so that the cooling medium in the cooling water circuit stops flowing to the cockpit main engine.

[0009] In some embodiments, the method further comprises:

[0010] Before obtaining the temperature information collected by the target thermistor in real time, a thermistor is arranged on each sensitive device of the cockpit host;

[0011] The temperature information corresponding to each thermistor in the cockpit host is obtained, and a target sensitive device and a corresponding target thermistor are determined according to the temperature information.

[0012] In some embodiments, obtaining temperature information collected by the thermistor in real time includes:

[0013] A temperature signal collected in real time by the target thermistor is obtained, and the temperature signal is converted into corresponding temperature information.

[0014] In some embodiments, determining the valve opening signal according to the temperature information and a preset junction temperature threshold comprises:

[0015] Determining the junction temperature information of the target sensitive device according to the junction temperature formula and the temperature information;

[0016] When the junction temperature information exceeds a preset junction temperature threshold, a valve opening signal is generated.

[0017] In some embodiments, the junction temperature formula is expressed as:

[0018] Tj=Rjc*P+Tc;

[0019] In the formula, Tj is the junction temperature information of the target sensitive device; Rjc is the thermal resistance from the junction temperature to the case temperature; P is the power consumption of the target sensitive device; and Tc is the temperature information of the target sensitive device.

[0020] In some embodiments, determining the closing signal of the valve according to the temperature information and the ambient temperature in the cabin host includes:

[0021] Determining the opening time of the valve according to the temperature information of the valve opening and the ambient temperature in the cabin host;

[0022] After the valve opening time reaches the opening time, a closing signal of the valve is generated.

[0023] In some embodiments, determining the closing signal of the valve according to the temperature information and the ambient temperature in the cabin host includes:

[0024] The real-time temperature information is compared with the ambient temperature in the cockpit main unit, and when the real-time temperature information is the same as the ambient temperature in the cockpit main unit, a closing signal of the valve is generated.

[0025] In a second aspect, a temperature control device for a vehicle is provided in this embodiment, which is applicable to a temperature control system of a vehicle, wherein the temperature control system includes a cooling water circuit of a power battery, a valve, and a cabin host; the valve is arranged on the cooling water circuit; the device includes: an acquisition module, an opening control module, and a closing control module;

[0026] The acquisition module is used to acquire temperature information collected in real time by a target thermistor; the target thermistor is arranged on a target sensitive device of the cockpit host;

[0027] The opening control module is used to determine the opening signal of the valve according to the temperature information and a preset junction temperature threshold, and control the valve to open based on the opening signal so that the cooling medium in the cooling water circuit flows to the cabin main engine;

[0028] The closing control module is used to determine a closing signal of the valve according to the temperature information and the ambient temperature in the cockpit main engine, and control the valve to close based on the closing signal so that the cooling medium in the cooling water circuit stops flowing to the cockpit main engine.

[0029] In a third aspect, a computer device is provided in this embodiment, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the vehicle temperature control method described in the first aspect when executing the computer program.

[0030] In a fourth aspect, in this embodiment, a storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the vehicle temperature control method described in the first aspect is implemented.

[0031] Compared with the related art, the vehicle temperature control method, device, computer equipment and storage medium provided in this embodiment obtain temperature information collected in real time by a target thermistor; the target thermistor is set on a target sensitive device of the cockpit main unit; according to the temperature information and a preset junction temperature threshold, an opening signal of the valve is determined, and the valve is controlled to open based on the opening signal so that the cooling medium in the cooling water circuit flows to the cockpit main unit; according to the temperature information and the ambient temperature in the cockpit main unit, a closing signal of the valve is determined, and the valve is controlled to close based on the closing signal so that the cooling medium in the cooling water circuit stops flowing to the cockpit main unit, thereby solving the problems of high cost, easy generation of condensed water in the cockpit main unit, and risk of damage to the cockpit main unit, and achieving low cost and avoiding the risk of damage to the cockpit main unit due to the generation of condensed water.

[0032] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0034] Figure 1 is a structural block diagram of a temperature control system for a vehicle provided in one embodiment of the present application;

[0035] Figure 2 is a flow chart of a vehicle temperature control method provided by an embodiment of the present application;

[0036] Figure 3 This is a schematic diagram of temperature calibration of a sensitive device provided in an embodiment of the present application;

[0037] Figure 4 It is a flow chart of a vehicle temperature control method provided by a preferred embodiment of the present application;

[0038] Figure 5 It is a structural block diagram of a temperature control device for a vehicle provided in one embodiment of the present application.

[0039] In the figure: 10, cooling water circuit; 20, valve; 30, cockpit host; 40, power battery; 50, processor; 210, acquisition module; 220, opening control module; 230, closing control module. DETAILED DESCRIPTION

[0040] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0041] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the general meaning understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the", "these" and the like in this application do not represent quantitative restrictions, and they can be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether directly or indirectly. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. Usually, the character " / " indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0042] The method embodiment provided in this embodiment can be applied to the temperature control system of a vehicle, such as Figure 1 As shown, the temperature control system includes a cooling water circuit 10 of a power battery 40 , a valve 20 , and a cabin main engine 30 ; the valve 20 is arranged on the cooling water circuit 10 .

[0043] Among them, the cooling water circuit 10 of the power battery 40 includes a closed cooling water circuit 10 formed by pipes, valves 20 and water pumps and other devices; on the basis of the original cooling water circuit 10 of the power battery 40, a cooling water circuit 10 for cooling the cockpit host 30 is led out. The opening and closing of the valve 20 is controlled by the method embodiment provided in the present application, and then the cooling medium in the cooling water circuit 10 is controlled to cool the cockpit host 30. There is no restriction on the control of cooling the power battery 40. Therefore, a set of cooling water circuits 10 can be used to achieve temperature control for the power battery 40 and the cockpit host 30 at the same time, so as to reduce production costs. Of course, the cooling water circuit 10 of the power battery 40 can be controlled separately, and there is no restriction or explanation on this.

[0044] The temperature control system further includes a processor 50 and a memory for storing data, wherein the processor 50 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA. In this embodiment, the processor 50 may include a CPU processing unit and an algorithm processing unit; the CPU processing unit is used to obtain the temperature signal collected by the target thermistor in real time, convert the temperature signal into corresponding temperature information, and transmit the temperature information to the algorithm processing unit; the algorithm processing unit is used to determine the opening signal and the closing signal according to the temperature information. The above system may also include a transmission device and an input and output device for communication functions. The memory can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the temperature control method of the vehicle in this embodiment. The processor 50 executes various functional applications and data processing by running the computer program stored in the memory, that is, realizing the above method. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include a memory remotely arranged relative to the processor 50, and these remote memories may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network and combinations thereof.

[0045] The transmission device is used to receive or send data via a network. The above network includes a wireless network provided by a communication provider of the terminal. In one example, the transmission device includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.

[0046] In this embodiment, a vehicle temperature control method is provided. Figure 2 is a flow chart of the vehicle temperature control method of this embodiment, such as Figure 2 As shown, the process includes the following steps:

[0047] Step S210, obtaining temperature information collected in real time by a target thermistor; the target thermistor is set on a target sensitive device of the cockpit host;

[0048] Step S220, determining a valve opening signal according to the temperature information and a preset junction temperature threshold, and controlling the valve to open based on the opening signal so that the cooling medium in the cooling water path flows to the cabin main engine;

[0049] Step S230, determining a closing signal of the valve according to the temperature information and the ambient temperature in the cockpit main engine, and controlling the valve to close based on the closing signal, so that the cooling medium in the cooling water circuit stops flowing to the cockpit main engine.

[0050] Specifically, there are various devices in the cockpit host, among which sensitive devices refer to those that have an important impact on the basic functions of the temperature control system, have high power consumption and serious heat generation (excessive heat generation exceeding the chip junction temperature has an attenuation effect on the device life), or both. For example: 1: Crystal device. Although the crystal does not generate serious heat, the temperature has a great impact on the frequency deviation of the crystal. The crystal is a device that provides the key clock signal of the temperature control system and is a sensitive device. 2: Soc device. As the control center of the entire temperature control system, the Soc device is the basis for realizing all functions. It has high computing power accompanied by high power consumption and is a sensitive device. 3: Memory devices such as EMMC and DDR affect the operation of the temperature control system and the storage of core codes and are sensitive devices. 4: Audio amplifier devices. New energy vehicles now have more than 12 speakers. The amplifier chip needs to output hundreds of watts of power to the speakers. The power dissipated in the amplifier chip is very large, and the amplifier chip with serious heat generation is a sensitive device. The target sensitive device is the sensitive device with the smallest maximum junction temperature after being tested under uniform conditions among all sensitive devices; and the target thermistor is the thermistor arranged on the target sensitive device.

[0051] Junction temperature is the actual operating temperature of semiconductors in electronic devices. The junction temperature threshold is pre-set, and each sensitive device has a corresponding junction temperature threshold, which is the maximum junction temperature of the sensitive device. If the junction temperature of the sensitive device is greater than or equal to the junction temperature threshold, it will affect the normal operation of the sensitive device. Therefore, when the junction temperature information converted from the temperature information is greater than or equal to the junction temperature threshold, the valve opening signal is determined. The valve is then controlled to open based on the opening signal so that the cooling medium in the cooling water circuit flows to the cockpit host to cool down the sensitive devices in the cockpit host. The conversion here can be calculated using the junction temperature formula, or it can be screened by the relationship curve between the temperature information and the junction temperature information measured experimentally, and there is no restriction on this.

[0052] The ambient temperature in the cockpit host can be measured by a temperature sensor arranged in the cockpit host; when the temperature information is equal to or slightly greater than the ambient temperature in the cockpit host, a valve closing signal is generated; of course, the closing time can also be determined after the valve is opened to generate a valve closing signal; finally, the valve is controlled to close based on the closing signal to stop the cooling medium in the cooling water circuit from flowing to the cockpit host, so that the sensitive devices in the cockpit host stop cooling down.

[0053] Through the above steps, the temperature information collected by the target thermistor in real time is obtained; the target thermistor is set on the target sensitive device of the cockpit host; according to the temperature information and the preset junction temperature threshold, the valve opening signal is determined, and the valve is controlled to open based on the opening signal, so that the cooling medium in the cooling water circuit flows to the cockpit host; by controlling the temperature of the target sensitive device, the junction temperature of all sensitive devices in the cockpit host is controlled not to reach the maximum junction temperature. According to the temperature information and the ambient temperature in the cockpit host, the valve closing signal is determined, and the valve is controlled to close based on the closing signal, so that the cooling medium in the cooling water circuit stops flowing to the cockpit host, ensuring that condensation water will not be generated on the sensitive devices in the cockpit host; the problem of high cost, easy generation of condensation water in the cockpit host, and risk of damage to the cockpit host is solved, and low cost is achieved, and the risk of damage to the cockpit host due to the generation of condensation water can be avoided.

[0054] In some of the embodiments, the vehicle temperature control method further includes the following steps:

[0055] Before obtaining the temperature information collected by the target thermistor in real time, the thermistor is set on each sensitive device of the cockpit host;

[0056] The temperature information corresponding to each thermistor in the cockpit host is obtained, and the target sensitive device and the corresponding target thermistor are determined according to the temperature information.

[0057] Specifically, in order to reduce the amount of calculation and improve the calculation efficiency, the target sensitive device and the corresponding target thermistor can be found through calibration. Thermistors are set on all sensitive devices in the cockpit host, and the host is run for a period of time to obtain the temperature information corresponding to each thermistor in the cockpit host. The sensitive device whose temperature information first reaches the corresponding maximum junction temperature is selected as the target sensitive device. Figure 3 As shown: During temperature calibration, the cockpit host is placed in the test oven, and a thermistor (PTC resistor) is placed on each sensitive device. The test oven temperature is controlled to be Xk, and the temperature information of each PTC resistor is obtained at this time, and converted into the junction temperature Tmax, so as to obtain the relationship between the test oven temperature and the junction temperature Tmax of each sensitive device. Device 2 in the figure is the target sensitive device.

[0058] The target thermistor is the thermistor set on the target sensitive device. You can run the main unit for a while, measure the position with the highest temperature on the target sensor, and set the thermistor at that position. It can be considered that when the target sensitive device reaches its maximum junction temperature, other sensitive devices have not yet reached their maximum junction temperature. Therefore, you can only set the target thermistor on the target sensitive device to reduce costs.

[0059] In some embodiments, obtaining temperature information collected by the thermistor in real time in step S210 includes the following steps:

[0060] Obtain the temperature signal collected by the target thermistor in real time and convert the temperature signal into corresponding temperature information.

[0061] Specifically, the temperature signal collected in real time by the target thermistor is an analog signal, so it needs to be converted into analog-to-digital conversion to convert the temperature signal into corresponding temperature information, which can be directly used in subsequent steps.

[0062] In some embodiments, determining the valve opening signal according to the temperature information and the preset junction temperature threshold in step S220 includes the following steps:

[0063] Step S221, determining the junction temperature information of the target sensitive device according to the junction temperature formula and the temperature information;

[0064] Step S222: When the junction temperature information exceeds a preset junction temperature threshold, a valve opening signal is generated.

[0065] Specifically, the junction temperature formula is:

[0066] Tj=Rjc*P+Tc;

[0067] Wherein, Tj is the junction temperature information of the target sensitive device; Rjc is the thermal resistance from the junction temperature to the case temperature; P is the power consumption of the target sensitive device; and Tc is the temperature information of the target sensitive device.

[0068] Among them, Rjc and P can be preset, for example, obtained from the device manual. Then, the temperature information Tc is substituted into the junction temperature formula to determine the junction temperature information of the target sensitive device; the junction temperature information is compared with the preset corresponding junction temperature threshold, and when the junction temperature information exceeds the preset junction temperature threshold, a valve opening signal is generated. In this embodiment, the valve opening signal can be generated quickly and accurately, so that each sensitive device can work normally.

[0069] There are several ways to determine the closing signal of the valve:

[0070] The first method is:

[0071] In some embodiments, determining the valve closing signal according to the temperature information and the ambient temperature in the cabin host in step S230 includes:

[0072] Determine the valve opening time according to the valve opening temperature information and the ambient temperature in the cockpit host;

[0073] After the valve opening time reaches the opening time, a valve closing signal is generated.

[0074] Specifically, the valve opening time Yk is determined based on the temperature information of the valve opening and the ambient temperature in the cockpit host. The longer the opening time, the more the temperature of the cockpit host decreases. If the temperature of the sensitive device in the cockpit host is lower than the ambient temperature, the possibility of condensation water will increase. Therefore, the heat dissipation risk and the condensation water risk are weighed to determine the valve opening time. The opening time Yk ensures that the junction temperature of the sensitive device drops to a reasonable temperature below the maximum junction temperature Tmax and does not generate condensation water.

[0075] The relationship between the opening time, device junction temperature, and the presence of condensed water (related to the ambient temperature) can be obtained through calibration. The calibration conditions are (humidity is 95% RH, alternating damp heat test). The relationship between the opening time, device junction temperature, and the presence of condensed water (related to the ambient temperature) is shown in Table 1 after calibration. You can choose Yp in Table 1 or a time slightly less than Yp as the valve opening time Yk. Then, after the valve opening time reaches the opening time, a valve closing signal is generated.

[0076] In this embodiment, the above process can be set before leaving the factory, so there is no need to set a temperature sensor in the cockpit host to detect the ambient temperature after leaving the factory, thereby reducing costs.

[0077] Table 1

[0078]

[0079] The second method is:

[0080] In some embodiments, determining the valve closing signal according to the temperature information and the ambient temperature in the cabin host in step S230 includes:

[0081] The real-time temperature information is compared with the ambient temperature in the cockpit host, and when the real-time temperature information is the same as the ambient temperature in the cockpit host, a valve closing signal is generated.

[0082] Specifically, the ambient temperature in the cockpit host can be measured by a temperature sensor or thermistor arranged in the cockpit host; the real-time temperature information is compared with the ambient temperature in the cockpit host, and when the temperature information is equal to or slightly greater than the ambient temperature in the cockpit host, a valve closing signal is generated.

[0083] The present embodiment is described and illustrated below through preferred embodiments.

[0084] Figure 4 It is a flow chart of the temperature control method for a vehicle according to the preferred embodiment.

[0085] S41, obtaining a temperature signal collected in real time by a target thermistor;

[0086] S42, converting the temperature signal into temperature information;

[0087] S43, determining the junction temperature information of the target sensitive device according to the junction temperature formula and the temperature information, and when the junction temperature information is greater than or equal to the junction temperature threshold Tmax, controlling the valve relay to open based on the generated opening signal;

[0088] S44, after the opening time of the valve reaches the opening time Yk, the relay of the valve is controlled to close based on the generated closing signal.

[0089] In this embodiment, the maximum junction temperature of the target sensitive device is calibrated by the invention opening time, and the valve is used to control whether the cooling medium flows through the cabin main engine and the flow time to prevent the cabin from generating condensed water due to the low temperature of the main engine, with high reliability and low cost.

[0090] It should be noted that the steps shown in the above process or the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0091] In this embodiment, a temperature control device for a vehicle is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. The terms "module", "unit", "subunit", etc. used below can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0092] Figure 5 is a structural block diagram of the temperature control device of the vehicle of this embodiment, such as Figure 5 As shown, the device includes: an acquisition module 210, an opening control module 220 and a closing control module 230;

[0093] The acquisition module 210 is used to acquire temperature information collected in real time by a target thermistor; the target thermistor is set on a target sensitive device of the cockpit host;

[0094] The opening control module 220 is used to determine the opening signal of the valve according to the temperature information and the preset junction temperature threshold, and control the valve to open based on the opening signal so that the cooling medium in the cooling water circuit flows to the cabin main engine;

[0095] The closing control module 230 is used to determine a closing signal of the valve according to the temperature information and the ambient temperature in the cockpit main engine, and control the valve to close based on the closing signal so that the cooling medium in the cooling water circuit stops flowing to the cockpit main engine.

[0096] The above device solves the problems of high cost, easy generation of condensation water in the cockpit main engine and risk of damage to the cockpit main engine, and achieves low cost and avoids the risk of damage to the cockpit main engine due to condensation water.

[0097] In some of the embodiments, the temperature control device of the vehicle further includes a determination module:

[0098] A determination module, used to set thermistors on various sensitive devices of the cockpit host before obtaining temperature information collected in real time by the target thermistor;

[0099] The temperature information corresponding to each thermistor in the cockpit host is obtained, and the target sensitive device and the corresponding target thermistor are determined according to the temperature information.

[0100] In some of the embodiments, the acquisition module 210 is further used to acquire a temperature signal collected in real time by the target thermistor, and convert the temperature signal into corresponding temperature information.

[0101] In some of the embodiments, the start control module 220 is further used to determine the junction temperature information of the target sensitive device according to the junction temperature formula and the temperature information;

[0102] When the junction temperature information exceeds a preset junction temperature threshold, a valve opening signal is generated.

[0103] In some of the embodiments, the junction temperature formula is expressed as:

[0104] Tj=Rjc*P+Tc;

[0105] Wherein, Tj is the junction temperature information of the target sensitive device; Rjc is the thermal resistance from the junction temperature to the case temperature; P is the power consumption of the target sensitive device; and Tc is the temperature information of the target sensitive device.

[0106] In some of the embodiments, the closing control module 230 is further used to determine the opening time of the valve according to the temperature information of the valve opening and the ambient temperature in the cabin host;

[0107] After the valve opening time reaches the opening time, a valve closing signal is generated.

[0108] In some of the embodiments, the closing control module 230 is further used to compare the real-time temperature information with the ambient temperature in the cabin host, and generate a valve closing signal when the real-time temperature information is the same as the ambient temperature in the cabin host.

[0109] It should be noted that the above modules can be functional modules or program modules, and can be implemented by software or hardware. For modules implemented by hardware, the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0110] In this embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0111] Optionally, the computer device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0112] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0113] S1, obtaining temperature information collected in real time by a target thermistor; the target thermistor is set on a target sensitive device of the cockpit host;

[0114] S2, determining an opening signal of the valve according to the temperature information and a preset junction temperature threshold, and controlling the valve to open based on the opening signal so that the cooling medium in the cooling water circuit flows to the cabin main engine;

[0115] S3, determining a closing signal of the valve according to the temperature information and the ambient temperature in the cockpit main engine, and controlling the valve to close based on the closing signal, so that the cooling medium in the cooling water circuit stops flowing to the cockpit main engine.

[0116] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation modes, and will not be repeated in this embodiment.

[0117] In addition, in combination with the vehicle temperature control method provided in the above embodiments, a storage medium may be provided in this embodiment to implement the vehicle temperature control method. The storage medium stores a computer program, and when the computer program is executed by a processor, any vehicle temperature control method in the above embodiments is implemented.

[0118] It should be understood that the specific embodiments described herein are only used to explain the application, rather than to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this application.

[0119] Obviously, the drawings are only some examples or embodiments of the present application. For ordinary technicians in the field, the present application can also be applied to other similar situations based on these drawings without creative work. In addition, it is understandable that although the work done in this development process may be complicated and lengthy, for ordinary technicians in the field, certain changes in design, manufacturing or generation based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient content disclosed in this application.

[0120] The term "embodiment" in this application refers to a specific feature, structure or characteristic described in conjunction with the embodiment that can be included in at least one embodiment of the present application. The appearance of this phrase in various locations in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. It is clearly or implicitly understood by those of ordinary skill in the art that the embodiments described in this application can be combined with other embodiments without conflict.

[0121] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of patent protection. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the attached claims.

Claims

1. A vehicle temperature control method, characterized in that: A temperature control system for a vehicle, the temperature control system comprising a cooling water circuit of a power battery, a valve and a cabin host; the valve is arranged on the cooling water circuit; the method comprises: Acquire temperature information collected in real time by a target thermistor; the target thermistor is arranged on a target sensitive device of the cockpit host; Determining an opening signal of the valve according to the temperature information and a preset junction temperature threshold, and controlling the valve to open based on the opening signal so that the cooling medium in the cooling water circuit flows to the cabin main engine; Determining a closing signal of the valve according to the temperature information and the ambient temperature in the cockpit main engine, and controlling the valve to close based on the closing signal so that the cooling medium in the cooling water circuit stops flowing to the cockpit main engine; Before obtaining the temperature information collected by the target thermistor in real time, a thermistor is arranged on each sensitive device of the cockpit host; Acquire temperature information corresponding to each thermistor in the cockpit host, and determine a target sensitive device and a corresponding target thermistor according to the temperature information; Wherein, determining the closing signal of the valve according to the temperature information and the ambient temperature in the cabin host includes: Based on the calibration under the calibration conditions, determining a table of the relationship between the opening time of the valve, the junction temperature of the device, and the presence of condensed water, and selecting the opening time of the valve from the table; After the valve opening time reaches the opening time, a closing signal of the valve is generated.

2. The vehicle temperature control method according to claim 1, characterized in that: The step of obtaining temperature information collected by the thermistor in real time includes: A temperature signal collected in real time by the target thermistor is obtained, and the temperature signal is converted into corresponding temperature information.

3. The vehicle temperature control method according to claim 1, characterized in that: Determining the valve opening signal according to the temperature information and a preset junction temperature threshold comprises: Determining the junction temperature information of the target sensitive device according to the junction temperature formula and the temperature information; When the junction temperature information exceeds a preset junction temperature threshold, a valve opening signal is generated.

4. The vehicle temperature control method according to claim 3, characterized in that: The junction temperature formula is expressed as: Tj=Rjc*P+Tc; In the formula, Tj is the junction temperature information of the target sensitive device; Rjc is the thermal resistance from the junction temperature to the case temperature; P is the power consumption of the target sensitive device; and Tc is the temperature information of the target sensitive device.

5. The vehicle temperature control method according to claim 1, characterized in that: Determining the closing signal of the valve according to the temperature information and the ambient temperature in the cabin host includes: Determining the opening time of the valve according to the temperature information of the valve opening and the ambient temperature in the cabin host; After the valve opening time reaches the opening time, a closing signal of the valve is generated.

6. The vehicle temperature control method according to claim 1, characterized in that: Determining the closing signal of the valve according to the temperature information and the ambient temperature in the cabin host includes: The real-time temperature information is compared with the ambient temperature in the cockpit main unit, and when the real-time temperature information is the same as the ambient temperature in the cockpit main unit, a closing signal of the valve is generated.

7. A temperature control device for a vehicle, characterized in that: A temperature control system for a vehicle, the temperature control system comprising a cooling water circuit of a power battery, a valve and a cabin host; the valve is arranged on the cooling water circuit; the device comprises: a determination module, an acquisition module, an opening control module and a closing control module; The determination module is used to set thermistors on various sensitive devices of the cockpit host before obtaining the temperature information collected by the target thermistor in real time; Obtaining temperature information corresponding to each thermistor in the cockpit host, and determining a target sensitive device and a corresponding target thermistor according to the temperature information; The acquisition module is used to acquire temperature information collected in real time by a target thermistor; the target thermistor is arranged on a target sensitive device of the cockpit host; The opening control module is used to determine the opening signal of the valve according to the temperature information and a preset junction temperature threshold, and control the valve to open based on the opening signal so that the cooling medium in the cooling water circuit flows to the cabin main engine; The closing control module is used to determine a closing signal of the valve according to the temperature information and the ambient temperature in the cockpit main engine, and control the valve to close based on the closing signal so that the cooling medium in the cooling water circuit stops flowing to the cockpit main engine; The closing control module is further used to determine a table of relationships among the opening time of the valve, the junction temperature of the device, and the presence of condensed water based on the calibration under the calibration conditions, and select the opening time of the valve from the table; After the valve opening time reaches the opening time, generating a closing signal of the valve; The closing control module is further used to determine a table of relationships among the opening time of the valve, the junction temperature of the device, and the presence of condensed water based on the calibration under the calibration conditions, and select the opening time of the valve from the table; After the valve opening time reaches the opening time, a closing signal of the valve is generated.

8. A computer device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps of the vehicle temperature control method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the vehicle temperature control method according to any one of claims 1 to 6 are implemented.

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