Air-cooling control method and apparatus for vehicle control unit, product, and storage medium

Abstract

The present invention relates to the technical field of vehicle control, and disclosed are an air-cooling control method and apparatus for a vehicle control unit, a product, and a storage medium. The method comprises: acquiring a current operating mode of a vehicle control unit, and acquiring operating temperatures of a plurality of components in the vehicle control unit in the current operating mode; on the basis of the operating temperatures, determining a first component and a second component from among the plurality of components, wherein the first component is a component, having the highest thermal risk degree, among the plurality of components, and the second component is a component, located at a temperature monitoring point, among the plurality of components; and on the basis of the first component and the second component, controlling a heat dissipation device in an air cooling system to dissipate heat of the vehicle control unit. The present invention solves the technical problem in the prior art of poor reliability of an air cooling system caused by performing, only on the basis of an operating temperature of a component at a monitoring point, air-cooling control on a control unit where the component is located.

Description

Air cooling control method, device, product and storage medium of vehicle controller TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle control, in particular to an air cooling control method, device, product and storage medium of a vehicle controller. BACKGROUND

[0002] With the improvement of vehicle intelligence, vehicle controllers are developing towards singleization, integration and miniaturization, and their power consumption and heat generation are gradually increasing. Since natural cooling cannot meet the cooling requirements of high-performance chips, liquid cooling relies on the vehicle liquid cooling circuit, which has certain requirements for vehicle thermal management and layout position, and is not suitable for iteration of individual controllers on the original vehicle platform. Air cooling has stronger cooling capacity than natural cooling, has no special requirements for layout position, and has been widely used in server cooling field.

[0003] At present, air cooling can realize energy saving and cooling by monitoring the working temperature of specific components and adjusting the fan in the air cooling system. However, since the air cooling system cannot monitor the working temperature of all components, it is easy to cause high thermal risk of the vehicle controller system due to the working temperature of the unmonitored components reaching the working temperature limit.

[0004] From the above analysis, it can be seen that there is no effective solution to the problem of poor reliability of the air cooling system caused by the air cooling control of the controller only according to the working temperature of the component at the monitoring point in the prior art. SUMMARY

[0005] The embodiments of the present application provide an air cooling control method, device, product and storage medium of a vehicle controller to at least solve the technical problem that the air cooling system has poor reliability caused by the air cooling control of the controller only according to the working temperature of the component at the monitoring point in the prior art.

[0006] According to an aspect of an embodiment of the present application, an air cooling control method of a vehicle controller is provided, comprising:

[0007] obtaining a current working mode of the vehicle controller, and obtaining working temperatures of a plurality of components in the vehicle controller under the current working mode; determining a first component and a second component from the plurality of components according to the working temperatures, wherein the first component is a component with the highest thermal risk degree in the plurality of components, and the second component is a component at a temperature monitoring point in the plurality of components; and controlling a cooling device in the air cooling system to cool the vehicle controller according to the first component and the second component.

[0008] Optionally, determining the first component from the plurality of components according to the working temperature comprises: calculating a ratio of the working temperature of each component in the plurality of components to a working temperature limit of each component to obtain a plurality of temperature ratios, wherein each temperature ratio is used to represent a degree of thermal risk of each component in the current working mode; comparing the plurality of temperature ratios to obtain a first comparison result; and determining the component corresponding to the maximum temperature ratio in the first comparison result as the first component.

[0009] Optionally, controlling the heat dissipation device in the air cooling system to dissipate heat from the vehicle controller according to the first component and the second component comprises: calculating a ratio of the working temperature of the second component to the working temperature limit of the second component to obtain a first temperature ratio, wherein the first temperature ratio is used to represent a degree of thermal risk of the second component in the current working mode; calculating a ratio of the first temperature ratio to a second temperature ratio to obtain a first numerical value, wherein the second temperature ratio is used to represent a degree of thermal risk of the first component in the current working mode, and the first numerical value is used to represent a relative degree of thermal risk of the first component and the second component in the current working mode; determining a second numerical value according to the second component; calculating a product of the first numerical value and the second numerical value to obtain a third numerical value; comparing the third numerical value with a preset upper limit of the numerical value and a preset lower limit of the numerical value to obtain a second comparison result; and adjusting a parameter of the heat dissipation device according to the second comparison result.

[0010] Optionally, in response to the heat dissipation device being a fan, the parameter comprises a wind force parameter, and adjusting the parameter of the heat dissipation device according to the second comparison result comprises: increasing the wind force parameter in response to the third numerical value being greater than or equal to the preset upper limit of the numerical value according to the second comparison result; keeping the wind force parameter unchanged in response to the third numerical value being less than or equal to the preset lower limit of the numerical value according to the second comparison result; and decreasing the wind force parameter in response to the third numerical value being greater than the preset lower limit of the numerical value and the third numerical value being less than the lower limit of the numerical value according to the second comparison result.

[0011] Optionally, the air cooling control method of the vehicle controller further comprises: constructing a simulation model of the vehicle controller; simulating thermal losses of the plurality of components in different working modes based on the simulation model to obtain simulation data; and analyzing the simulation data to obtain an analysis result, wherein the analysis result is used to determine the working temperature limit of each component in each working mode.

[0012] Optionally, the air cooling control method of the vehicle controller further comprises: adjusting the temperature monitoring point according to the current working mode and the analysis result.

[0013] According to another aspect of the embodiment of the present application, an air cooling control device of a vehicle controller is also provided, comprising:

[0014] The acquisition module is configured to acquire a current working mode of the vehicle controller and acquire working temperatures of the plurality of components in the current working mode; the determination module is configured to determine a first component and a second component from the plurality of components according to the working temperatures, wherein the first component is a component with the highest thermal risk degree in the plurality of components, and the second component is a component at a temperature monitoring point in the plurality of components; and the control module is configured to control the heat dissipation device in the air cooling system to dissipate heat for the vehicle controller according to the first component and the second component.

[0015] Optionally, the determination module is further configured to: calculate a ratio of the working temperature of each component in the plurality of components to a working temperature limit of each component to obtain a plurality of temperature ratios, wherein each temperature ratio is used to represent the thermal risk degree of each component in the current working mode; compare the plurality of temperature ratios to obtain a first comparison result; and determine the component corresponding to the maximum temperature ratio in the first comparison result as the first component.

[0016] Optionally, the control module is further configured to: calculate a ratio of the working temperature of the second component to a working temperature limit of the second component to obtain a first temperature ratio, wherein the first temperature ratio is used to represent the thermal risk degree of the second component in the current working mode; calculate a ratio of the first temperature ratio to a second temperature ratio to obtain a first numerical value, wherein the second temperature ratio is used to represent the thermal risk degree of the first component in the current working mode, and the first numerical value is used to represent the relative thermal risk degree of the first component and the second component in the current working mode; determine a second numerical value according to the second component; calculate a product of the first numerical value and the second numerical value to obtain a third numerical value; compare the third numerical value with a preset upper numerical limit and a preset lower numerical limit to obtain a second comparison result; and adjust the parameter of the heat dissipation device according to the second comparison result.

[0017] Optionally, in response to the heat dissipation device being a fan, the parameter includes a wind force parameter, and the control module is further configured to: increase the wind force parameter in response to the second comparison result determining that the third numerical value is greater than or equal to the preset upper numerical limit; keep the wind force parameter unchanged in response to the second comparison result determining that the third numerical value is less than or equal to the preset lower numerical limit; and decrease the wind force parameter in response to the second comparison result determining that the third numerical value is greater than the preset lower numerical limit and the third numerical value is less than the lower numerical limit.

[0018] Optionally, the air cooling control device of the vehicle controller further comprises: an emulation module configured to construct an emulation model of the vehicle controller, emulate thermal losses of the plurality of components in different working modes based on the emulation model to obtain emulation data, and analyze the emulation data to obtain an analysis result, wherein the analysis result is used to determine the working temperature limit of each component in each working mode in the plurality of components.

[0019] Optionally, the air cooling control device of the vehicle controller further comprises an adjusting module configured to adjust the temperature monitoring point according to the current working mode and the analysis result.

[0020] According to another aspect of the embodiments of the present application, a computer program product is provided, which comprises a computer program, and the computer program, when executed by a processor, implements the air cooling control method of the vehicle controller according to any one of the preceding embodiments.

[0021] According to another aspect of the embodiments of the present application, a computer readable storage medium is provided, which comprises a stored executable program, and when the executable program is executed, the computer readable storage medium controls the device where the computer readable storage medium is located to execute the air cooling control method of the vehicle controller according to any one of the preceding embodiments.

[0022] According to another aspect of the embodiments of the present application, a vehicle is provided, which comprises an on-board storage and an on-board processor, the on-board storage stores a computer program, and the on-board processor is configured to execute the computer program to execute the air cooling control method of the vehicle controller according to any one of the preceding embodiments.

[0023] In the embodiments of the present application, the current working mode of the vehicle controller is first acquired, and the working temperatures of the plurality of components in the vehicle controller under the current working mode are acquired, then, according to the working temperatures, the first component and the second component are determined from the plurality of components, wherein the first component is the component with the highest thermal risk degree in the plurality of components, and the second component is the component at the temperature monitoring point in the plurality of components, and finally, according to the first component and the second component, the heat dissipation device in the air cooling system is controlled to dissipate heat for the vehicle controller. By monitoring the working temperatures of all components in the vehicle controller, and then determining the first component with the highest thermal risk degree for each component through temperature calculation, and then comprehensively controlling the parameters of the heat dissipation device according to the first component and the second component at the temperature monitoring point under the current working mode of the vehicle controller, the real-time performance and reliability of the air cooling system are improved, and the accuracy of the air cooling system for dissipating heat for the vehicle controller is improved, thereby solving the technical problem in the prior art that the air cooling control for the controller where the component is located is only based on the working temperature of the component at the monitoring point, resulting in poor reliability of the air cooling system. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0025] FIG. 1 is a hardware structure block diagram of a vehicle terminal for an air cooling control method of a vehicle controller according to an embodiment of the present application;

[0026] Fig. 2 is a flow chart of a wind cooling control method of a vehicle controller according to an embodiment of the present application;

[0027] Fig. 3 is a structural schematic diagram of a wind cooling control system of a vehicle controller according to an embodiment of the present application;

[0028] Fig. 4 is a flow chart of a wind cooling control process of a vehicle controller according to an embodiment of the present application;

[0029] Fig. 5 is a schematic diagram of a component operating temperature according to an embodiment of the present application;

[0030] Fig. 6 is a structural block diagram of a wind cooling control device of a vehicle controller according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without making creative labor should belong to the scope of protection of the present application.

[0032] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] According to the embodiments of the present application, a method embodiment of a wind cooling control method of a vehicle controller is provided. It should be noted that the steps shown in the flow chart of the drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flow chart, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0034] Fig. 1 is a hardware structure block diagram of a vehicle terminal according to an optional air cooling control method for a vehicle controller according to an embodiment of the present application. As shown in Fig. 1, the vehicle terminal (or mobile device) can include one or more processors 102 (the processor 102 can include, but is not limited to, a processing device such as a microcontroller unit (MCU) or a field programmable gate array (FPGA)), a memory 104 configured to store data, and a transmission device 106 for communication functions. In addition, it can also include a display device 110, an input / output device 108 (i.e., an IO device), a universal serial bus (USB) port (which can be included as one of the ports of a computer bus, not shown in the figure), a network interface (not shown in the figure), a power supply (not shown in the figure), and / or a camera (not shown in the figure). Those skilled in the art can understand that the structure shown in Fig. 1 is only schematic, and does not limit the structure of the vehicle terminal described above. For example, the vehicle terminal can include more or fewer components than those shown in Fig. 1, or have a different configuration from that shown in Fig. 1.

[0035] It should be noted that the one or more processors 102 and / or other data processing circuits described above can be embodied in whole or in part as software, hardware, firmware, or any combination thereof. In addition, the data processing circuit can be a single independent processing module, or all or part of any one of the other elements incorporated into the vehicle terminal (or mobile device).

[0036] The memory 104 can be configured to store software programs and modules of application software, such as program instructions / data storage means corresponding to the air cooling control method for a vehicle controller according to an embodiment of the present application. The processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, i.e., implements the air cooling control method for a vehicle controller described above. The memory 104 can include a high-speed random access memory, and can 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 examples, the memory 104 can further include a memory remotely disposed with respect to the processor 102, which can be connected to the vehicle terminal through a network. Examples of the network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0037] The transmission device 106 is configured to receive or send data via a network. The network can include a wireless network provided by a communication provider of the vehicle terminal. In one example, the transmission device 106 includes a network interface controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module configured to communicate with the Internet wirelessly.

[0038] In the above operating environment, the embodiment of the present application provides a wind cooling control method of a vehicle controller as shown in FIG. 2, which is a flow chart of the wind cooling control method of the vehicle controller according to the embodiment of the present application. As shown in FIG. 2, the method includes the following implementation steps:

[0039] In step S201, the current working mode of the vehicle controller is obtained, and the working temperatures of the plurality of components in the current working mode of the vehicle controller are obtained.

[0040] In step S202, the first component and the second component are determined from the plurality of components according to the working temperatures, wherein the first component is the component with the highest thermal risk degree in the plurality of components, and the second component is the component located at the temperature monitoring point in the plurality of components.

[0041] In step S203, the heat dissipation device in the wind cooling system is controlled to dissipate heat from the vehicle controller according to the first component and the second component.

[0042] The above method is further described below in combination with FIG. 3.

[0043] FIG. 3 is a structural schematic diagram of a wind cooling control system of a vehicle controller according to the embodiment of the present application. As shown in FIG. 3, the wind cooling control system at least includes: an integrated printed circuit board (PCB) 301 and printed circuit board assembly (PCBA), a thermally conductive interface material 303 configured to conduct heat generated by a plurality of components 302 to the upper / lower shell 304 of the controller for heat dissipation, and a fan 307 configured to generate cooler air by using fins 306 and transmit the cold air through a wind cooling flow channel 305 to dissipate heat generated by the plurality of components 302.

[0044] It should be noted that the main body of the vehicle controller can include a fixing device (not shown in the figure) and a sealing device (not shown in the figure) in addition to the controller upper / lower shell 304, and the structures of the controller upper / lower shell 304, the fixing device and the sealing device can be arranged to fix and support the PCB board 301 inside the controller.

[0045] It should also be noted that different components integrated on the PCBA board (not shown in the figure) can assist in realizing different functions of the vehicle controller, for example, the sensor chip integrated on the PCBA board can be arranged to collect information such as the driving speed and acceleration of the vehicle.

[0046] In addition, the PCBA can at least integrate a thermistor, which can be arranged to monitor the working temperature of the PCB board and the working temperature of each component.

[0047] As an optional implementation, according to the load intensity of the vehicle controller during work, the working mode of the vehicle controller can be divided into: high-load working mode (such as vehicle rapid acceleration, climbing), medium-load working mode (such as vehicle driving on urban roads), and low-load working mode (such as vehicle low-speed driving, vehicle in idle speed control). It can be understood that in different working modes of the vehicle controller, the heat dissipation degree of the same component is different, for example, when the vehicle controller is in high-load working mode, the heat generated by the component is high, and when the vehicle controller is in low-load working mode, the heat generated by the component is low or even no heat is generated.

[0048] In order to improve the real-time performance and reliability of the air cooling control system for dissipating heat from the vehicle controller, the present application can determine the first component with the highest heat risk degree in the current working mode by monitoring the current working mode of the vehicle controller and the working temperature of each component in the current working mode, and by calculating the working temperature of each component. The temperature calculation of the first component and the second component at the temperature monitoring point is combined to accurately control the heat dissipation equipment in the air cooling system to dissipate heat from the vehicle controller by using the temperature result.

[0049] In the embodiment of the present application, the current working mode of the vehicle controller is first acquired, and the working temperatures of the plurality of components in the vehicle controller under the current working mode are acquired, then, according to the working temperatures, the first component and the second component are determined from the plurality of components, wherein the first component is the component with the highest thermal risk degree among the plurality of components, and the second component is the component at the temperature monitoring point among the plurality of components, finally, according to the first component and the second component, the heat dissipation device in the air cooling system is controlled to dissipate heat for the vehicle controller. By monitoring the working temperatures of all components in the vehicle controller, and then calculating the temperature of each component to determine the first component with the highest thermal risk degree, and then comprehensively controlling the parameters of the heat dissipation device according to the first component and the second component at the temperature monitoring point under the current working mode of the vehicle controller, the real-time and reliability of the air cooling system are improved, and the accuracy of the air cooling system for dissipating heat for the vehicle controller is improved, thereby solving the technical problem that the prior art only controls the air cooling of the controller according to the working temperature of the component at the monitoring point, resulting in poor reliability of the air cooling system.

[0050] The above method of the embodiment of the present application will be further introduced below.

[0051] In an optional embodiment, in step S202, determining the first component from the plurality of components according to the working temperatures comprises:

[0052] Step S221, calculating the ratio of the working temperature of each component in the plurality of components to the working temperature limit value of each component to obtain a plurality of temperature ratios, wherein each temperature ratio is used to represent the thermal risk degree of each component under the current working mode;

[0053] Step S222, comparing the plurality of temperature ratios to obtain a first comparison result;

[0054] Step S223, determining the component corresponding to the maximum temperature ratio in the first comparison result as the first component.

[0055] As an optional implementation, the working temperature curves of the plurality of components under different working modes obtained by monitoring can be as shown in FIG. 4, in FIG. 4, L1, L2 and L3 correspond to different working modes of the vehicle controller, the working temperature on each line represents the actually measured working temperature of the component (PCB board, U1 to U13 in FIG. 4), and the histogram represents the working temperature limit value of each component. By calculating the ratio of the working temperature of each component to the corresponding working temperature limit value under each working mode, the temperature ratio representing the thermal risk degree of each component under each working mode can be obtained, and then by comparing the temperature ratios of the plurality of components under the same working mode, the component with the highest thermal risk degree corresponding to the maximum temperature ratio can be determined.

[0056] In the optional embodiment described above, the component with the highest thermal risk in the L1 corresponding working mode is U12, the component with the highest thermal risk in the L2 corresponding working mode is U13, and the component with the highest thermal risk in the L3 corresponding working mode is U2.

[0057] In an optional embodiment, in step S203, according to the first component and the second component, the heat dissipation device in the air cooling system is controlled to dissipate heat from the vehicle controller, including:

[0058] In step S231, a first temperature ratio is obtained by ratio calculation of the working temperature of the second component and the working temperature limit value of the second component, wherein the first temperature ratio is used to represent the thermal risk degree of the second component in the current working mode;

[0059] In step S232, a first value is obtained by ratio calculation of the first temperature ratio and a second temperature ratio, wherein the second temperature ratio is used to represent the thermal risk degree of the first component in the current working mode, and the first value is used to represent the relative thermal risk degree of the first component and the second component in the current working mode;

[0060] In step S233, a second value is determined according to the second component;

[0061] In step S234, a third value is obtained by calculating the product of the first value and the second value;

[0062] In step S235, the third value is compared with a preset upper limit value and a preset lower limit value to obtain a second comparison result;

[0063] In step S236, the parameter of the heat dissipation device is adjusted according to the second comparison result.

[0064] As an optional embodiment, assuming that the component U5 is the second component at the temperature monitoring point, the component with the highest thermal risk in the current working mode (the first component) is U12, the working temperature of the second component U5 is denoted as T U5 , the working temperature limit value is denoted as TJ U5 , the working temperature of the first component U12 is denoted as T U12 , and the working temperature limit value is denoted as TJ U12 The first temperature ratio a obtained by ratio calculation of the working temperature of the second component and the working temperature limit value of the second component can be shown in the following formula (1):

[0065] The second temperature ratio b corresponding to the first component can be shown in the following formula (2):

[0066] The first temperature ratio a and the second temperature ratio b are calculated by ratio calculation to obtain a first value c, which can be shown in the following formula (3):

[0067] The second value (or junction temperature ratio) d is determined according to the second component, which can be shown in the following formula (4):

[0068] The product of the first value c and the second value d is calculated to obtain a third value (or mode ratio factor) e, which can be shown in the following formula (5):

[0069] The preset upper limit value can be used to represent the upper limit of the temperature in the allowed air cooling control system, and the preset lower limit value can be used to represent the lower limit of the temperature in the allowed air cooling control system.

[0070] In the present application, by comparing the calculated third value e with the preset upper limit value and the preset lower limit value, the adjustment direction of the parameter of the heat dissipation device can be determined.

[0071] In an optional embodiment, in step S236, in response to the heat dissipation device being a fan, the parameter includes a wind force parameter, and adjusting the parameter of the heat dissipation device according to the second comparison result includes:

[0072] In step S2361, in response to the second comparison result determining that the third value is greater than or equal to the preset upper limit value, the wind force parameter is increased;

[0073] In step S2362, in response to the second comparison result determining that the third value is less than or equal to the preset lower limit value, the wind force parameter is kept unchanged;

[0074] In step S2363, in response to the second comparison result determining that the third value is greater than the preset lower limit value and less than the upper limit value, the wind force parameter is decreased.

[0075] As an optional implementation, assuming that the preset upper limit value is 95% and the preset lower limit value is 80%, when the comparison determines that the third value is greater than or equal to the preset upper limit value, it is determined that the thermal risk degree of the component in the current working mode is high, at this time, the wind force parameter (such as wind speed and wind volume) of the heat dissipation device needs to be increased to speed up the heat dissipation process of the vehicle controller; when the comparison determines that the third value is less than or equal to the preset upper limit value, it is determined that the thermal risk degree of the component in the current working mode is low, at this time, the wind force parameter of the heat dissipation device can be reduced to slow down the heat dissipation process of the vehicle controller; when the comparison determines that the third value is greater than the preset lower limit value and less than the preset upper limit value, it is determined that the thermal risk degree of the component in the current working mode is general, at this time, the wind force parameter of the heat dissipation device can be kept unchanged to maintain the normal heat dissipation process of the vehicle controller.

[0076] In an alternative embodiment, the air cooling control method of the vehicle controller further comprises:

[0077] Step S241, constructing a simulation model of the vehicle controller;

[0078] Step S242, based on the simulation model, simulating the heat dissipation of the plurality of components in different working modes to obtain simulation data;

[0079] Step S243, analyzing the simulation data to obtain an analysis result, wherein the analysis result is used to determine the working temperature limit of each component in each working mode.

[0080] In the present application, in order to determine the working temperature limit of each component in the vehicle controller in different working modes, a corresponding simulation model can be constructed in advance according to the structure of the vehicle controller and the air cooling control system, and different working modes of the vehicle controller are simulated. After a large number of simulation tests, the working temperature of each component in a single working mode is counted, and the maximum working temperature of each component in each working mode is analyzed and determined, which is used as the working temperature limit of the component in the working mode.

[0081] In an alternative embodiment, the air cooling control method of the vehicle controller further comprises:

[0082] Step S244, adjusting the temperature monitoring point according to the current working mode and the analysis result.

[0083] It can be understood that the maximum working temperature of a single component in the working mode of the vehicle controller may be different. Therefore, in order to improve the flexibility of the air cooling control system of the vehicle controller, the temperature monitoring point in the system can be adjusted in real time according to the current working mode of the vehicle controller and the simulation analysis result, which can also improve the accuracy of the third value calculated in the current working mode, and thus the vehicle controller can be precisely and efficiently cooled by the air cooling system.

[0084] Fig. 5 is a schematic diagram of a component working temperature according to an embodiment of the present application. As shown in Fig. 5, the present application first acquires the current working mode of the vehicle controller and the working temperature of all components in the monitored vehicle controller, then determines the first component with the highest thermal risk degree by temperature calculation for each component, and further determines the product of the mode scaling factor and the junction temperature scaling of the second component at the temperature monitoring point under the current working mode by comprehensively considering the first component and the second component under the current working mode of the vehicle controller, and adjusts the wind power parameter (such as the air volume) of the heat dissipation device (such as the fan) according to the product value, thereby realizing the technical effects of improving the real-time performance and reliability of the air cooling system and improving the accuracy of the air cooling system for the vehicle controller, and further solving the technical problem in the prior art that the air cooling system has poor reliability due to the air cooling control of the controller according to the working temperature of the component at the monitoring point.

[0085] In the embodiment, a vehicle controller air cooling control device is also provided, which is configured to implement the above-mentioned embodiments and preferred embodiments, and will not be described herein again. As used below, a "module" refers to a combination of software and / or hardware that can implement a predetermined function. Although the device described in the following embodiments is preferably implemented in software, implementation in hardware or a combination of software and hardware is also possible and contemplated.

[0086] Fig. 6 is a structural block diagram of a vehicle controller air cooling control device according to an embodiment of the present application. As shown in Fig. 6, the device comprises:

[0087] The acquisition module 601 is configured to acquire the current working mode of the vehicle controller and the working temperature of a plurality of components in the vehicle controller under the current working mode;

[0088] The determination module 602 is configured to determine a first component and a second component from the plurality of components according to the working temperature, wherein the first component is the component with the highest thermal risk degree in the plurality of components, and the second component is the component at the temperature monitoring point in the plurality of components;

[0089] The control module 603 is configured to control the heat dissipation device in the air cooling system to dissipate heat for the vehicle controller according to the first component and the second component.

[0090] Optionally, the determination module 602 is further configured to: calculate the ratio of the working temperature of each component in the plurality of components to the working temperature limit value of each component to obtain a plurality of temperature ratios, wherein each temperature ratio is used to represent the thermal risk degree of each component under the current working mode; compare the plurality of temperature ratios to obtain a first comparison result; and determine the component corresponding to the maximum temperature ratio in the first comparison result as the first component.

[0091] Optionally, the control module 603 is further configured to: perform ratio calculation on the working temperature of the second component and the working temperature limit of the second component to obtain a first temperature ratio, wherein the first temperature ratio is used to represent the thermal risk degree of the second component under the current working mode; perform ratio calculation on the first temperature ratio and a second temperature ratio to obtain a first numerical value, wherein the second temperature ratio is used to represent the thermal risk degree of the first component under the current working mode, and the first numerical value is used to represent the relative thermal risk degree of the first component and the second component under the current working mode; determine a second numerical value according to the second component; calculate the product of the first numerical value and the second numerical value to obtain a third numerical value; compare the third numerical value with a preset upper numerical limit and a preset lower numerical limit to obtain a second comparison result; and adjust the parameter of the heat dissipation device according to the second comparison result.

[0092] Optionally, in response to the heat dissipation device being a fan, the parameter includes a wind force parameter, and the control module 603 is further configured to: increase the wind force parameter in response to the third numerical value being greater than or equal to the preset upper numerical limit according to the second comparison result; keep the wind force parameter unchanged in response to the third numerical value being less than or equal to the preset lower numerical limit according to the second comparison result; and decrease the wind force parameter in response to the third numerical value being greater than the preset lower numerical limit and the third numerical value being less than the lower numerical limit according to the second comparison result.

[0093] Optionally, the air cooling control device of the vehicle controller further includes: a simulation module 604 (not shown in the figure) configured to construct a simulation model of the vehicle controller, simulate the heat loss of the plurality of components under different working modes based on the simulation model to obtain simulation data, and analyze the simulation data to obtain an analysis result, wherein the analysis result is used to determine the working temperature limit of each component in each working mode.

[0094] Optionally, the air cooling control device of the vehicle controller further includes: an adjustment module 605 (not shown in the figure) configured to adjust the temperature monitoring point according to the current working mode and the analysis result.

[0095] It should be noted that each of the above modules can be implemented by software or hardware, and for the latter, the following implementation manners can be used, but are not limited thereto: all the modules are located in the same processor; or each of the modules is located in a different processor in any combination.

[0096] According to another aspect of the embodiments of the present application, a computer program product is also provided, which includes a computer program, and the computer program is executed by a processor to implement the air cooling control method of the vehicle controller in any of the preceding embodiments.

[0097] According to a further aspect of the embodiments of the present application, a computer readable storage medium is also provided, which includes a stored executable program, wherein the executable program, when executed, controls a device in which the computer readable storage medium is located to perform the air cooling control method of the vehicle controller in any one of the preceding embodiments.

[0098] Optionally, in the embodiment, the storage medium can be configured to store a computer program for performing the following steps:

[0099] Step S1, obtaining a current working mode of the vehicle controller, and obtaining working temperatures of a plurality of components in the vehicle controller under the current working mode;

[0100] Step S2, determining a first component and a second component from the plurality of components according to the working temperatures, wherein the first component is a component with the highest thermal risk degree among the plurality of components, and the second component is a component at a temperature monitoring point among the plurality of components;

[0101] Step S3, controlling a heat dissipation device in the air cooling system to dissipate heat from the vehicle controller according to the first component and the second component.

[0102] Optionally, in the embodiment, the storage medium can include, but is not limited to, a U disk, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and various storage media that can store computer programs.

[0103] According to a further aspect of the embodiments of the present application, a vehicle is also provided, which includes an on-board storage and an on-board processor, the on-board storage stores a computer program, and the on-board processor is configured to execute the computer program to perform the air cooling control method of the vehicle controller in any one of the preceding embodiments.

[0104] Optionally, in the embodiment, the on-board processor can be configured to perform the following steps through the computer program:

[0105] Step S1, obtaining a current working mode of the vehicle controller, and obtaining working temperatures of a plurality of components in the vehicle controller under the current working mode;

[0106] Step S2, determining a first component and a second component from the plurality of components according to the working temperatures, wherein the first component is a component with the highest thermal risk degree among the plurality of components, and the second component is a component at a temperature monitoring point among the plurality of components;

[0107] Step S3, according to the first component and the second component, controlling the heat dissipation device in the air cooling system to dissipate heat for the vehicle controller.

[0108] Optionally, in the specific examples in the embodiment, reference can be made to the examples described in the above embodiments and optional implementation manners thereof, and the embodiment is not described here again.

[0109] The above embodiment numbers of the application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0110] In the above embodiments of the application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0111] In the several embodiments of the present application, it should be understood that the disclosed technology can be implemented in other ways. Of course, the device embodiment described above is only schematic. For example, the division of units can be a logical function division, and there can be another division manner in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection between units can be indirect coupling or communication connection through some interface, unit or module, and can be electrical or other forms.

[0112] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0113] In addition, each functional unit in each embodiment of the application can be integrated into a processing unit, or each unit can exist physically, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0114] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application, essentially or in other words, the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a number of instructions to make a computer device (which can be a personal computer, a server or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and various media that can store program codes.

[0115] The above only describes the preferred embodiments of the present application. It should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A method for air cooling control of a vehicle controller, comprising: obtaining a current working mode of a vehicle controller, and obtaining working temperatures of a plurality of components in the vehicle controller under the current working mode; determining a first component and a second component from the plurality of components according to the working temperatures, wherein the first component is a component with the highest thermal risk degree among the plurality of components, and the second component is a component at a temperature monitoring point among the plurality of components; controlling a heat dissipation device in an air cooling system to dissipate heat from the vehicle controller according to the first component and the second component.

2. The air-cooling control method of a vehicle controller according to claim 1, wherein determining the first component from the plurality of components according to the working temperatures comprises: calculating a ratio of the working temperature of each component in the plurality of components to a working temperature limit of the each component to obtain a plurality of temperature ratios, wherein each temperature ratio is used to represent a thermal risk degree of the each component under the current working mode; comparing the plurality of temperature ratios to obtain a first comparison result; determining a component corresponding to a maximum temperature ratio in the first comparison result as the first component.

3. The air-cooling control method of a vehicle controller according to claim 1, wherein controlling the heat dissipation device in the air cooling system to dissipate heat from the vehicle controller according to the first component and the second component comprises: calculating a ratio of the working temperature of the second component to a working temperature limit of the second component to obtain a first temperature ratio, wherein the first temperature ratio is used to represent a thermal risk degree of the second component under the current working mode; calculating a ratio of the first temperature ratio to a second temperature ratio to obtain a first numerical value, wherein the second temperature ratio is used to represent a thermal risk degree of the first component under the current working mode, and the first numerical value is used to represent a relative thermal risk degree of the first component and the second component under the current working mode; determining a second numerical value according to the second component; calculating a product of the first numerical value and the second numerical value to obtain a third numerical value; comparing the third numerical value with a preset upper numerical limit and a preset lower numerical limit to obtain a second comparison result; adjusting a parameter of the heat dissipation device according to the second comparison result.

4. The air-cooling control method of a vehicle controller according to claim 3, wherein in response to the heat dissipation device being a fan, the parameter comprises a wind force parameter, and adjusting the parameter of the heat dissipation device according to the second comparison result comprises: in response to the second comparison result determining that the third numerical value is greater than or equal to the preset upper numerical limit, increasing the wind force parameter; in response to the second comparison result determining that the third numerical value is less than or equal to the preset lower numerical limit, keeping the wind force parameter unchanged; in response to the second comparison result determining that the third numerical value is greater than the preset lower numerical limit and less than the numerical lower limit, decreasing the wind force parameter.

5. The air-cooling control method of a vehicle controller according to claim 1, wherein The method for air cooling control of the vehicle controller further comprises: constructing a simulation model of the vehicle controller; based on the simulation model, simulating thermal losses of the plurality of components under different working modes to obtain simulation data; The simulation data is analyzed to obtain an analysis result, wherein the analysis result is used to determine a working temperature limit of each component in the plurality of components in each working mode.

6. The air-cooling control method of a vehicle controller according to claim 5, wherein The air cooling control method of the vehicle controller further comprises: Adjusting the temperature monitoring point according to the current working mode and the analysis result.

7. An air cooling control device of a vehicle controller, comprising: An obtaining module configured to obtain a current working mode of a vehicle controller, and obtain working temperatures of a plurality of components in the vehicle controller in the current working mode; A determining module configured to determine a first component and a second component from the plurality of components according to the working temperatures, wherein the first component is a component with the highest thermal risk degree in the plurality of components, and the second component is a component at a temperature monitoring point in the plurality of components; A control module configured to control a heat dissipation device in an air cooling system to dissipate heat from the vehicle controller according to the first component and the second component.

8. The air-cooled control device of a vehicle controller according to claim 7, wherein The determining module is further configured to: calculate a ratio of the working temperature of each component in the plurality of components to a working temperature limit of the each component to obtain a plurality of temperature ratios, wherein each temperature ratio is used to represent a thermal risk degree of the each component in the current working mode; compare the plurality of temperature ratios to obtain a first comparison result; and determine the component corresponding to the maximum temperature ratio in the first comparison result as the first component.

9. The air-cooled control device of a vehicle controller according to claim 7, wherein The control module is further configured to: calculate a ratio of the working temperature of the second component to a working temperature limit of the second component to obtain a first temperature ratio, wherein the first temperature ratio is used to represent a thermal risk degree of the second component in the current working mode; calculate a ratio of the first temperature ratio to a second temperature ratio to obtain a first numerical value, wherein the second temperature ratio is used to represent a thermal risk degree of the first component in the current working mode, and the first numerical value is used to represent a relative thermal risk degree of the first component and the second component in the current working mode; determine a second numerical value according to the second component; calculate a product of the first numerical value and the second numerical value to obtain a third numerical value; compare the third numerical value with a preset upper numerical limit and a preset lower numerical limit to obtain a second comparison result; and adjust a parameter of the heat dissipation device according to the second comparison result.

10. The air-cooled control device of a vehicle controller according to claim 9, wherein In response to the heat dissipation device being a fan, the parameter comprises a wind force parameter, and the control module is further configured to: increase the wind force parameter in response to the second comparison result determining that the third numerical value is greater than or equal to the preset upper numerical limit; In response to the second comparison result determining that the third numerical value is less than or equal to the preset lower numerical limit, keep the wind force parameter unchanged; In response to the second comparison result determining that the third numerical value is greater than the preset lower numerical limit and less than the numerical lower limit, decrease the wind force parameter.

11. The air-cooled control device of a vehicle controller according to claim 7, wherein The air cooling control device of the vehicle controller further comprises an emulation module configured to construct an emulation model of the vehicle controller, to emulate heat loss of the plurality of components in different working modes based on the emulation model, to obtain emulation data, and to analyze the emulation data to obtain an analysis result, wherein the analysis result is used to determine a working temperature limit of each component in each working mode.

12. The air-cooled control device of a vehicle controller according to claim 11, wherein The air cooling control device of the vehicle controller further comprises an adjustment module configured to adjust the temperature monitoring point according to the current working mode and the analysis result.

13. A computer program product comprising a computer program which, when executed by a processor, implements the air cooling control method of the vehicle controller according to any one of claims 1 to 6.

14. A computer readable storage medium comprising a stored executable program, wherein, The computer readable storage medium is controlled to execute the air cooling control method of the vehicle controller according to any one of claims 1 to 6 when the executable program is running.

15. A vehicle comprising an on-board storage and an on-board processor, the on-board storage storing a computer program, and the on-board processor being configured to run the computer program to execute the air cooling control method of the vehicle controller according to any one of claims 1 to 6.

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