Temperature control method and device for automatic driving computing chip, equipment and medium

Abstract

The invention discloses a temperature control method, device and equipment for an automatic driving calculation chip and a medium, and relates to the technical field of vehicles, in the method, a controller obtains the first temperature of the environment and the first temperature of cooling liquid, and on the premise that the first temperature of the environment is within a temperature interval corresponding to the automatic driving calculation chip, the first temperature of the cooling liquid is controlled to be within the temperature interval corresponding to the automatic driving calculation chip; if the first temperature of the cooling liquid is not larger than the first temperature of the environment, the heater is controlled to be turned on and the cooler is controlled to be turned off, and if the first temperature of the cooling liquid is larger than the first temperature of the environment and smaller than the maximum value of the temperature interval corresponding to the automatic driving calculation chip, the heater and the cooler are controlled to be turned off; the first temperature of the cooling liquid is larger than the first temperature of the environment and is not smaller than the maximum value of the temperature interval corresponding to the automatic driving calculation chip, and the heater is controlled to be turned off and the cooler is controlled to be turned on. According to the method, heat dissipation processing can be accurately carried out on the automatic driving computing chip, and energy waste is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a temperature control method, device, equipment and medium for an autonomous driving computing chip. Background Art

[0002] Autonomous driving is an intelligent vehicle technology that uses advanced communication, computer, network and control technologies to enable vehicles to achieve automatic control of driving in different scenarios.

[0003] With the development of vehicle technology, autonomous driving technology is becoming more and more mature. Autonomous driving technology needs to rely on the powerful computing power of autonomous driving computing chips. During the operation of the autonomous driving computing chip, a large amount of heat will be generated. Therefore, the autonomous driving computing chip needs to be cooled.

[0004] The current heat dissipation strategy is to start cooling as long as the autonomous driving computing chip is working, so as to ensure that the autonomous driving computing chip will not fail due to overheating. However, this heat dissipation strategy has some disadvantages. In some cases, the autonomous driving computing chip does not actually need heat dissipation. In this case, cooling the autonomous driving computing chip will lead to energy waste. Summary of the invention

[0005] The present application provides a temperature control method, device, equipment and medium for an autonomous driving computing chip, which can accurately dissipate heat for the autonomous driving computing chip and reduce energy waste.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions: In a first aspect, the present application provides a temperature control method for an autonomous driving computing chip, comprising: The autonomous driving computing chip is located in a cooling circuit, and the cooling circuit also includes a water pump, a heater, and a cooler. The water pump is in a normally open state. The method includes: Acquire a first temperature of the environment and a first temperature of the coolant; Determine whether the first temperature of the environment is within a temperature range corresponding to the autonomous driving computing chip, and obtain a first determination result; If the first judgment result indicates that the first temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, then determining whether the first temperature of the coolant is greater than the first temperature of the environment to obtain a second judgment result; If the second judgment result indicates that the first temperature of the coolant is not greater than the first temperature of the environment, controlling the heater to turn on and the cooler to turn off; If the second judgment result indicates that the first temperature of the cooling is greater than the first temperature of the environment, then determining whether the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the automatic driving computing chip to obtain a third judgment result; If the third judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the automatic driving computing chip, controlling the heater to be turned off and the cooler to be turned off; If the third judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, the heater is controlled to be turned off and the cooler is controlled to be turned on.

[0007] Optionally, if the third judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, after controlling the heater to be turned off and the cooler to be turned off, the method further includes: Acquire a second temperature of the environment and a second temperature of the coolant, wherein the second temperature of the environment is the temperature of the environment after the heater is turned off and a first preset time has passed, and the second temperature of the coolant is the temperature of the coolant after the heater is turned off and a first preset time has passed; If the second temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the second temperature of the coolant is less than or equal to the difference between the second temperature of the environment and the first preset return temperature, the heater is controlled to turn on; or, If the second temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the second temperature of the coolant is less than or equal to the minimum value of the temperature range corresponding to the autonomous driving computing chip, the heater is controlled to turn on.

[0008] Optionally, if the third judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, after controlling the heater to be turned off and the cooler to be turned on, the method further includes: Acquire a third temperature of the environment and a third temperature of the coolant, wherein the third temperature of the environment is the temperature of the environment after the cooler is turned on and a first preset time has passed, and the third temperature of the coolant is the temperature of the coolant after the cooler is turned on and a first preset time has passed; If the third temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the third temperature of the coolant is less than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature, the cooler is controlled to be turned off.

[0009] Optionally, if the second judgment result indicates that the first temperature of the coolant is not greater than the first temperature of the environment, after controlling the heater to turn on and the cooler to turn off, the method further includes: Acquire a fourth temperature of the environment and a fourth temperature of the coolant, wherein the fourth temperature of the environment is the temperature of the environment after the heater is turned on and a first preset time has passed, and the fourth temperature of the coolant is the temperature of the coolant after the heater is turned on and a first preset time has passed; If the fourth temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the fourth temperature of the coolant is greater than or equal to the fourth temperature of the environment, then the heater is controlled to be turned off; or, If the fourth temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the fourth temperature of the coolant is greater than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature, the heater is controlled to be turned off.

[0010] Optionally, the method further includes: If the first judgment result indicates that the first temperature of the environment is not within the temperature range corresponding to the autonomous driving computing chip, then determining whether the first temperature of the coolant is greater than a minimum value of the temperature range corresponding to the autonomous driving computing chip to obtain a fourth judgment result; If the fourth judgment result indicates that the first temperature of the coolant is not greater than the minimum value of the temperature range corresponding to the automatic driving computing chip, then controlling the heater to turn on and the cooler to turn off; If the fourth judgment result indicates that the first temperature of the coolant is greater than the minimum value of the temperature interval corresponding to the autonomous driving computing chip, then determining whether the first temperature of the coolant is less than the maximum value of the temperature interval corresponding to the autonomous driving computing chip to obtain a fifth judgment result; If the fifth judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the automatic driving computing chip, the heater is controlled to be turned off and the cooler is controlled to be turned off; If the fifth judgment result indicates that the first temperature of the coolant is greater than the maximum value of the temperature range corresponding to the automatic driving computing chip, the heater is controlled to be turned off and the cooler is controlled to be turned on.

[0011] Optionally, if the fourth judgment result indicates that the first temperature of the coolant is not greater than the minimum value of the temperature range corresponding to the autonomous driving computing chip, after controlling the heater to turn on and the cooler to turn off, the method further includes: Acquiring a fifth temperature of the coolant, where the fifth temperature of the coolant is the temperature of the coolant after the heater is turned on and a second preset time has passed; If the fifth temperature of the coolant is greater than or equal to the sum of the minimum value of the temperature range corresponding to the autonomous driving computing chip and the third preset return temperature, the heater is controlled to be turned off.

[0012] Optionally, if the fifth judgment result indicates that the first temperature of the coolant is greater than the maximum value of the temperature range corresponding to the autonomous driving computing chip, after controlling the heater to be turned off and the cooler to be turned on, the method further includes: Acquiring a sixth temperature of the coolant, where the sixth temperature of the coolant is the temperature of the coolant after the cooler is turned on and a second preset time has passed; If the sixth temperature of the coolant is less than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature, the cooler is controlled to be turned off.

[0013] In a second aspect, the present application provides a temperature control device for an autonomous driving computing chip, the device comprising: An acquisition module, used for acquiring a first temperature of the environment and a first temperature of the coolant; A first judgment module, used to judge whether the first temperature of the environment is within the temperature range corresponding to the automatic driving computing chip, and obtain a first judgment result; a second judgment module, configured to judge whether the first temperature of the coolant is greater than the first temperature of the environment if the first judgment result indicates that the first temperature of the environment is within the temperature range corresponding to the automatic driving computing chip, to obtain a second judgment result; a control module, configured to control the heater to be turned on and the cooler to be turned off if the second judgment result indicates that the first temperature of the coolant is not greater than the first temperature of the environment; a third judgment module, configured to judge whether the first temperature of the coolant is less than a maximum value of a temperature range corresponding to the automatic driving computing chip, if the second judgment result indicates that the first cooling temperature is greater than the first temperature of the environment, to obtain a third judgment result; The control module is further used to control the heater to be turned off and the cooler to be turned off if the third judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip; and to control the heater to be turned off and the cooler to be turned on if the third judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip.

[0014] In a third aspect, the present application provides a computing device, including a memory and a processor; One or more computer programs are stored in the memory, and the one or more computer programs include instructions; when the instructions are executed by the processor, the computing device executes the method as described in any one of the first aspects.

[0015] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium is used to store a computer program, and the computer program is used to execute the method as described in any one of the first aspects.

[0016] It can be seen from the above technical solution that the present application has at least the following beneficial effects: The present application provides a temperature control method for an autonomous driving computing chip. The method can be executed by a controller. The autonomous driving computing chip is located in a cooling circuit. The cooling circuit also includes a water pump, a heater and a cooler. The water pump is normally open. In the method, the controller obtains a first temperature of the environment and a first temperature of the coolant. Under the premise that the first temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, the first temperature of the coolant is not greater than the first temperature of the environment. Then the heater is controlled to be turned on and the cooler is turned off. When the first temperature of the coolant is greater than the first temperature of the environment and the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, the heater is controlled to be turned off and the cooler is controlled to be turned off. When the first temperature of the coolant is greater than the first temperature of the environment and the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, the heater is controlled to be turned off and the cooler is turned on. In the method, not only the heat dissipation situation is considered, but also the situation where low temperature needs to be heated. In addition, combined with the influence of the ambient temperature, the temperature of the coolant is made as close to the ambient temperature as possible while meeting the heat dissipation requirements of the autonomous driving computing chip, so as to reduce the condensation of water vapor in the environment on the autonomous driving computing chip and then form water droplets. It can be seen that the method can not only reduce energy waste, but also control the temperature of the autonomous driving computing chip more reasonably.

[0017] It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages can be realized in any single embodiment. On the contrary, it is understood that the description of features or beneficial effects means that specific technical features, technical solutions or beneficial effects are included in at least one embodiment. Therefore, the description of technical features, technical solutions or beneficial effects in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in the present embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that the embodiment can be realized without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in a specific embodiment that does not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a cooling circuit of an autonomous driving computing chip provided in an embodiment of the present application; Figure 2 A flow chart of a temperature control method for an autonomous driving computing chip provided in an embodiment of the present application; Figure 3 A schematic diagram of a temperature condition provided in an embodiment of the present application; Figure 4 A schematic diagram of another temperature condition provided in an embodiment of the present application; Figure 5 A schematic diagram of another temperature condition provided in an embodiment of the present application; Figure 6 A schematic diagram of a temperature control device for an autonomous driving computing chip provided in an embodiment of the present application; Figure 7 A schematic diagram of a computing device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] The terms "first", "second", "third", etc. in the specification of this application and the accompanying drawings are used to distinguish different objects rather than to limit a specific order.

[0020] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0021] In the solution of cooling the autonomous driving computing chip, the traditional cooling solution has a certain amount of energy waste and does not take into account the impact of ambient temperature.

[0022] In view of this, the embodiment of the present application provides a temperature control method for an autonomous driving computing chip, which can be executed by a controller. In this method, not only the heat dissipation situation is taken into account, but also the situation where low temperature needs to be heated. In addition, the influence of the ambient temperature is combined. While meeting the heat dissipation requirements of the autonomous driving computing chip, the temperature of the coolant is made as close to the ambient temperature as possible, thereby reducing the condensation of water vapor in the environment on the autonomous driving computing chip and then forming water droplets. It can be seen that this method can not only reduce energy waste, but also control the temperature of the autonomous driving computing chip more reasonably.

[0023] In order to make the technical solution of the present application clearer and easier to understand, the technical solution of the present application is introduced below in conjunction with the accompanying drawings.

[0024] like Figure 1 As shown, this figure is a schematic diagram of a cooling circuit of an autonomous driving computing chip provided in an embodiment of the present application, and the cooling circuit includes: a water pump 110, a heater 120, a cooler 130 and an expansion pot 140. The autonomous driving computing chip 150 is located in the above cooling circuit. Figure 1 The connection relationship shown and the position of the autonomous driving computing chip in the cooling circuit are merely schematic, and the controller is not shown in the figure.

[0025] like Figure 2 As shown, this figure is a flow chart of a temperature control method for an autonomous driving computing chip provided in an embodiment of the present application, the method comprising: S201. A controller obtains a first temperature of an environment and a first temperature of a coolant.

[0026] The first temperature of the environment may refer to the initial temperature of the environment when the autonomous driving computing chip starts working, and the first temperature of the coolant may refer to the initial temperature of the coolant when the autonomous driving computing chip starts working.

[0027] The controller may obtain the first temperature of the environment and the first temperature of the coolant through the sensor.

[0028] S202. The controller determines whether the first temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip.

[0029] The temperature range corresponding to the autonomous driving computing chip refers to the temperature range in which the autonomous driving computing chip can work normally or efficiently. Whether the ambient temperature is within this temperature range determines the heating and cooling logic.

[0030] The controller determines whether the first temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and obtains a first judgment result. If the first judgment result indicates that the first temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, S203 is executed; if the first judgment result indicates that the first temperature of the environment is not within the temperature range corresponding to the autonomous driving computing chip, S208 is executed.

[0031] S203: The controller determines whether the first temperature of the coolant is greater than the first temperature of the environment.

[0032] like Figure 3 As shown, this figure is a schematic diagram of a temperature condition provided in an embodiment of the present application. As can be seen from the figure, the first temperature of the environment is in the temperature range corresponding to the autonomous driving computing chip. In this case, the controller needs to further compare the first temperature of the coolant with the first temperature of the environment. The controller determines whether the first temperature of the coolant is greater than the first temperature of the environment, and obtains a second judgment result. If the second judgment result indicates that the first temperature of the coolant is greater than the first temperature of the environment, S204 is executed. If the second judgment result indicates that the first temperature of the coolant is not greater than the first temperature of the environment, S207 is executed.

[0033] S204. The controller determines whether the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the automatic driving computing chip.

[0034] The controller determines whether the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip to obtain a third judgment result. If the third judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, S205 is executed. If the third judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, S206 is executed.

[0035] S205 , the controller controls the heater to turn off and the cooler to turn off.

[0036] When the third judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, that is, the first temperature of the environment < the first temperature of the coolant < the maximum value of the temperature range corresponding to the autonomous driving computing chip, the controller controls the heater to turn off and the cooler to turn off. In this case, neither heating nor cooling is required.

[0037] In some embodiments, the controller can also obtain a second temperature of the environment and a second temperature of the coolant, where the second temperature of the environment is the temperature of the environment after the heater is turned off and a first preset time has passed, and the second temperature of the coolant is the temperature of the coolant after the heater is turned off and a first preset time has passed.

[0038] After the heater is turned off, the temperature of the environment and the coolant will change. Among them, the second temperature of the environment is still in the temperature range corresponding to the autonomous driving computing chip. The following is an introduction to two situations.

[0039] The first is that the change between the second temperature of the environment and the first temperature of the environment is less than the first temperature threshold, that is, the second temperature of the environment is close to the first temperature of the environment. At this time, when the controller determines that the second temperature of the coolant is less than or equal to the difference between the second temperature of the environment and the first preset return temperature, it controls the heater to turn on. In other words, when the second temperature of the coolant is lower than the second temperature of the environment, the heating is not started immediately, but it is started only when it is lower than a certain degree (the first preset return temperature). The purpose of the controller controlling the heater to start is to make the temperature of the coolant close to the temperature of the environment, so as to reduce the condensation of water on the surface of the autonomous driving computing chip after the water vapor in the environment encounters the low-temperature autonomous driving computing chip, thereby further ensuring the normal operation of the autonomous driving computing chip.

[0040] In some embodiments, the controller can also obtain the humidity in the environment in real time, for example, by obtaining the humidity of the environment surrounding the autonomous driving computing chip through a humidity sensor. If the humidity of the environment surrounding the autonomous driving computing chip is greater than or equal to the preset humidity, the controller starts heating when it determines that the second temperature of the coolant is lower than the second temperature of the environment, without waiting for it to be lower than a certain degree before starting heating. This can further ensure the normal operation of the autonomous driving computing chip. If the humidity of the environment surrounding the autonomous driving computing chip is lower than the preset humidity, the controller determines that the second temperature of the coolant is lower than the second temperature of the environment by a certain degree (the first preset return temperature), and then starts heating.

[0041] The second type is that the difference between the second temperature of the environment and the minimum value of the temperature interval corresponding to the autonomous driving computing chip is less than the first temperature threshold, that is, the second temperature of the environment is close to the minimum value of the temperature interval corresponding to the autonomous driving computing chip, wherein the first temperature threshold may be the same as the first preset reset temperature. At this time, when the controller determines that the second temperature of the coolant is less than or equal to the minimum value of the temperature interval corresponding to the autonomous driving computing chip, it directly controls the heater to turn on, thereby starting heating to prevent the temperature of the coolant from being lower than the temperature interval corresponding to the autonomous driving computing chip.

[0042] S206 , the controller controls the heater to be turned off and the cooler to be turned on.

[0043] The third judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, that is, the maximum value of the temperature range corresponding to the autonomous driving computing chip is ≤ the first temperature of the coolant. The controller controls the heater to turn off and the cooler to turn on. In this case, the autonomous driving computing chip needs to be cooled.

[0044] In some embodiments, the controller can also obtain a third temperature of the environment and a third temperature of the coolant, where the third temperature of the environment is the temperature of the environment after the cooler is turned on and a first preset time has passed, and the third temperature of the coolant is the temperature of the coolant after the cooler is turned on and a first preset time has passed.

[0045] After the cooler is turned on, the temperatures of the environment and the coolant will change. The third temperature of the environment is still in the temperature range corresponding to the autonomous driving computing chip. The controller determines that the third temperature of the coolant is less than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature, indicating that the temperature of the autonomous driving computing chip has returned to the normal working temperature range. The cooler is then controlled to be turned off, wherein the second preset return temperature may be the same as or different from the first preset return temperature, which is not specifically limited in the embodiments of the present application.

[0046] It should be noted that when there is a conflict between the effects of temperature and humidity, the influence of temperature is given priority, that is, the temperature of the autonomous driving computing chip is controlled within the normal operating temperature range, and then the impact of humidity on the autonomous driving computing chip is considered.

[0047] S207: The controller controls the heater to turn on and the cooler to turn off.

[0048] If the second judgment result indicates that the first temperature of the coolant is not greater than the first temperature of the environment, that is, the first temperature of the coolant ≤ the first temperature of the environment < the maximum value of the temperature range corresponding to the autonomous driving computing chip, the controller controls the heater to turn on and the cooler to turn off. In this case, heating is required.

[0049] In some embodiments, the controller can obtain a fourth temperature of the environment and a fourth temperature of the coolant, where the fourth temperature of the environment is the temperature of the environment after the heater is turned on and a first preset time has passed, and the fourth temperature of the coolant is the temperature of the coolant after the heater is turned on and the first preset time has passed.

[0050] After the heater is turned on, the temperature of the environment and the coolant will change. Among them, the fourth temperature of the environment is still in the temperature range corresponding to the autonomous driving computing chip. The following is an introduction to two situations.

[0051] The first is that the change between the fourth temperature of the environment and the first temperature of the environment is less than the second temperature threshold, that is, the fourth temperature of the environment is close to the first temperature of the environment. At this time, when the controller determines that the fourth temperature of the coolant is greater than or equal to the fourth temperature of the environment, it controls the heater to turn off, that is, when the fourth temperature of the coolant is higher than the fourth temperature of the environment, the heating is stopped. The purpose of the controller controlling the heater to start is to make the temperature of the coolant close to the temperature of the environment, which can reduce the condensation of water on the surface of the autonomous driving computing chip after the water vapor in the environment encounters the low-temperature autonomous driving computing chip, thereby further ensuring the normal operation of the autonomous driving computing chip.

[0052] The second type is that the difference between the fourth temperature of the environment and the maximum value of the temperature interval corresponding to the autonomous driving computing chip is less than the second temperature threshold, that is, the fourth temperature of the environment is close to the maximum value of the temperature interval corresponding to the autonomous driving computing chip, wherein the second temperature threshold may be the same as the second preset return temperature. At this time, when the controller determines that the fourth temperature of the coolant is greater than or equal to the difference between the maximum value of the temperature interval corresponding to the autonomous driving computing chip and the second preset return temperature, it directly controls the heater to turn off, thereby stopping heating, and preventing the temperature of the coolant from being higher than the temperature interval corresponding to the autonomous driving computing chip.

[0053] The S208 controller determines whether the first temperature of the coolant is greater than the minimum value of the temperature range corresponding to the autonomous driving computing chip.

[0054] like Figure 4 As shown in FIG. 1 , this figure is a schematic diagram of another temperature condition provided by an embodiment of the present application. It can be seen from the figure that the first temperature of the environment is not in the temperature range corresponding to the autonomous driving computing chip, and the first temperature of the environment is lower than the minimum value of the temperature range corresponding to the autonomous driving computing chip. Figure 5 As shown in the figure, this figure is a schematic diagram of another temperature condition provided in an embodiment of the present application. It can be seen from the figure that the first temperature of the environment is not in the temperature interval corresponding to the autonomous driving computing chip, and the first temperature of the environment is higher than the maximum value of the temperature interval corresponding to the autonomous driving computing chip. In this case, the controller needs to further compare the first temperature of the coolant with the first temperature of the environment. The controller determines whether the first temperature of the coolant is greater than the minimum value of the temperature interval corresponding to the autonomous driving computing chip, and obtains a fourth judgment result. If the fourth judgment result indicates that the first temperature of the coolant is greater than the minimum value of the temperature interval corresponding to the autonomous driving computing chip, S209 is executed. If the fourth judgment result indicates that the first temperature of the coolant is not greater than the minimum value of the temperature interval corresponding to the autonomous driving computing chip, S212 is executed.

[0055] S209. The controller determines whether the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip.

[0056] The controller determines whether the first temperature of the coolant is less than the maximum value of the temperature interval corresponding to the autonomous driving computing chip, and obtains a fifth judgment result. If the fifth judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature interval corresponding to the autonomous driving computing chip, S210 is executed; if the fifth judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature interval corresponding to the autonomous driving computing chip, S211 is executed.

[0057] S210: The controller controls the heater to be turned off and the cooler to be turned off.

[0058] When the fifth judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, that is, the first temperature of the coolant < the maximum value of the temperature range corresponding to the autonomous driving computing chip, the controller controls the heater to turn off and the cooler to turn off. In this case, neither heating nor cooling is required.

[0059] S211, the controller controls the heater to turn off and the cooler to turn on.

[0060] When the fifth judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, that is, the maximum value of the temperature range corresponding to the autonomous driving computing chip is ≤ the first temperature of the coolant, the controller controls the heater to turn off and the cooler to turn on. In this case, the autonomous driving computing chip needs to be cooled.

[0061] In some embodiments, the controller can also obtain a sixth temperature of the coolant, which is the temperature of the coolant after the cooler is turned on and a second preset time has passed; wherein the second preset time may be the same as or different from the first preset time.

[0062] After the cooler is turned on, the temperatures of the environment and the coolant will change. The temperature of the environment is still not in the temperature range corresponding to the autonomous driving computing chip. The controller determines that the sixth temperature of the coolant is less than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature, and then controls the cooler to turn off.

[0063] S212: The controller controls the heater to turn on and the cooler to turn off.

[0064] When the fourth judgment result indicates that the first temperature of the coolant is not greater than the minimum value of the temperature range corresponding to the autonomous driving computing chip, that is, the first temperature of the coolant ≤ the minimum value of the temperature range corresponding to the autonomous driving computing chip, the controller controls the heater to turn on and the cooler to turn off. In this case, heating is required.

[0065] In some embodiments, the controller may obtain a fifth temperature of the coolant, where the fifth temperature of the coolant is the temperature of the coolant after the heater is turned on and a second preset time has passed.

[0066] After the heater is turned on, the temperature of the environment and the coolant will change, wherein the temperature of the environment is still not in the temperature range corresponding to the autonomous driving computing chip. When the controller determines that the fifth temperature of the coolant is greater than or equal to the sum of the minimum value of the temperature range corresponding to the autonomous driving computing chip and the third preset reset temperature, it controls the heater to be turned off, wherein the third preset reset temperature may be the same as or different from the first preset reset temperature, so that the temperature of the autonomous driving computing chip is in the normal working temperature range.

[0067] Based on the above description, the present application provides a temperature control method for an autonomous driving computing chip. The method can be executed by a controller. The autonomous driving computing chip is located in a cooling circuit. The cooling circuit also includes a water pump, a heater and a cooler. The water pump is normally open. In the method, the controller obtains a first temperature of the environment and a first temperature of the coolant. Under the premise that the first temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, the first temperature of the coolant is not greater than the first temperature of the environment. Then the heater is controlled to be turned on and the cooler is turned off. When the first temperature of the coolant is greater than the first temperature of the environment and the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, the heater is controlled to be turned off and the cooler is controlled to be turned off. When the first temperature of the coolant is greater than the first temperature of the environment and the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, the heater is controlled to be turned off and the cooler is turned on. In the method, not only the heat dissipation situation is considered, but also the situation where low temperature needs to be heated. In addition, combined with the influence of the ambient temperature, the temperature of the coolant is made as close to the ambient temperature as possible while meeting the heat dissipation requirements of the autonomous driving computing chip, thereby reducing the condensation of water vapor in the environment on the autonomous driving computing chip and forming water droplets. It can be seen that this method can not only reduce energy waste, but also control the temperature of the autonomous driving computing chip more reasonably.

[0068] Combination of the above Figures 1 to 5 The temperature control method of the autonomous driving computing chip provided in the embodiment of the present application is introduced in detail. The devices and equipment provided in the embodiment of the present application will be introduced in conjunction with the accompanying drawings.

[0069] like Figure 6 As shown, this figure is a schematic diagram of a temperature control device for an autonomous driving computing chip provided in an embodiment of the present application, the device comprising: An acquisition module 601 is used to acquire a first temperature of the environment and a first temperature of the coolant; A first judgment module 602 is used to judge whether the first temperature of the environment is within the temperature range corresponding to the automatic driving computing chip, and obtain a first judgment result; A second judgment module 603 is configured to judge whether the first temperature of the coolant is greater than the first temperature of the environment if the first judgment result indicates that the first temperature of the environment is within the temperature range corresponding to the automatic driving computing chip, so as to obtain a second judgment result; A control module 604, configured to control the heater to be turned on and the cooler to be turned off if the second judgment result indicates that the first temperature of the coolant is not greater than the first temperature of the environment; A third judgment module 605 is configured to judge whether the first temperature of the coolant is less than a maximum value of a temperature range corresponding to the automatic driving computing chip if the second judgment result indicates that the first temperature of the cooling is greater than the first temperature of the environment, to obtain a third judgment result; The control module 604 is further configured to control the heater to be turned off and the cooler to be turned off if the third judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip; and control the heater to be turned off and the cooler to be turned on if the third judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip.

[0070] Optionally, the acquisition module 601 is further used to acquire a second temperature of the environment and a second temperature of the coolant, wherein the second temperature of the environment is the temperature of the environment after the heater is turned off and a first preset time has passed, and the second temperature of the coolant is the temperature of the coolant after the heater is turned off and a first preset time has passed; The control module 604 is further used to control the heater to turn on if the second temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip and the second temperature of the coolant is less than or equal to the difference between the second temperature of the environment and the first preset return temperature; or to control the heater to turn on if the second temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip and the second temperature of the coolant is less than or equal to the minimum value of the temperature range corresponding to the autonomous driving computing chip.

[0071] Optionally, the acquisition module 601 is further used to acquire a third temperature of the environment and a third temperature of the coolant, wherein the third temperature of the environment is the temperature of the environment after the cooler is turned on and a first preset time has passed, and the third temperature of the coolant is the temperature of the coolant after the cooler is turned on and a first preset time has passed; The control module 604 is also used to control the cooler to be turned off if the third temperature of the environment is in the temperature range corresponding to the autonomous driving computing chip, and the third temperature of the coolant is less than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature.

[0072] Optionally, the acquisition module 601 is further used to acquire a fourth temperature of the environment and a fourth temperature of the coolant, wherein the fourth temperature of the environment is the temperature of the environment after the heater is turned on and a first preset time has passed, and the fourth temperature of the coolant is the temperature of the coolant after the heater is turned on and a first preset time has passed; The control module 604 is further configured to control the heater to be turned off if the fourth temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip and the fourth temperature of the coolant is greater than or equal to the fourth temperature of the environment; or to control the heater to be turned off if the fourth temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip and the fourth temperature of the coolant is greater than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature.

[0073] Optionally, the device further includes a fourth judgment module and a fifth judgment module, the fourth judgment module being configured to judge whether the first temperature of the coolant is greater than a minimum value of the temperature interval corresponding to the autonomous driving computing chip if the first judgment result indicates that the first temperature of the environment is not within the temperature interval corresponding to the autonomous driving computing chip, to obtain a fourth judgment result; The control module 604 is further configured to control the heater to be turned on and the cooler to be turned off if the fourth judgment result indicates that the first temperature of the coolant is not greater than a minimum value of the temperature range corresponding to the automatic driving computing chip; a fifth judgment module, configured to judge whether the first temperature of the coolant is less than a maximum value of the temperature interval corresponding to the autonomous driving computing chip if the fourth judgment result indicates that the first temperature of the coolant is greater than a minimum value of the temperature interval corresponding to the autonomous driving computing chip, to obtain a fifth judgment result; The control module 604 is further configured to control the heater to be turned off and the cooler to be turned off if the fifth judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip; and control the heater to be turned off and the cooler to be turned on if the fifth judgment result indicates that the first temperature of the coolant is greater than the maximum value of the temperature range corresponding to the autonomous driving computing chip.

[0074] Optionally, the acquisition module 601 is further used to acquire a fifth temperature of the coolant, where the fifth temperature of the coolant is the temperature of the coolant after the heater is turned on and a second preset time has passed; The control module 604 is also used to control the heater to turn off if the fifth temperature of the coolant is greater than or equal to the sum of the minimum value of the temperature range corresponding to the autonomous driving computing chip and the third preset return temperature.

[0075] Optionally, the acquisition module 601 is further used to acquire a sixth temperature of the coolant, where the sixth temperature of the coolant is the temperature of the coolant after the cooler is turned on and a second preset time has passed; The control module 604 is also used to control the cooler to be turned off if the sixth temperature of the coolant is less than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature.

[0076] The temperature control device of the autonomous driving computing chip according to the embodiment of the present application may correspond to the method described in the embodiment of the present application, and the above-mentioned other operations and / or functions of each module / unit of the temperature control device of the autonomous driving computing chip are respectively to realize Figure 2 For the sake of brevity, the corresponding processes of each method in the illustrated embodiment are not described in detail here.

[0077] The embodiment of the present application also provides a computing device, which may be a controller on a vehicle.

[0078] like Figure 7 As shown, this figure is a schematic diagram of a computing device provided in an embodiment of the present application, and the computing device 700 includes a bus 701, a processor 702, a communication interface 703 and a memory 704. The processor 702, the memory 704 and the communication interface 703 communicate through the bus 701.

[0079] The bus 701 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0080] The processor 702 may be any one or more of a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor (MP), or a digital signal processor (DSP).

[0081] The communication interface 703 is used for communicating with the outside.

[0082] The memory 704 may include a volatile memory, such as a random access memory (RAM). The memory 704 may also include a non-volatile memory, such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD), or a solid state drive (SSD).

[0083] The memory 704 stores executable code, and the processor 702 executes the executable code to execute the temperature control method of the aforementioned autonomous driving computing chip.

[0084] Specifically, in implementing Figure 6 In the case of the embodiment shown, and Figure 6 When each module or unit of the temperature control device of the autonomous driving computing chip described in the embodiment is implemented by software, the execution Figure 6 The software or program code required for the functions of each module / unit in the system may be partially or completely stored in the memory 704. The processor 702 executes the program code corresponding to each unit stored in the memory 704 to execute the temperature control method of the aforementioned autonomous driving computing chip.

[0085] The embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium can be any available medium that can be stored by the computing device or a data storage device such as a data center containing one or more available media. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid-state hard disk). The computer-readable storage medium includes instructions that instruct the computing device to execute the temperature control method of the above-mentioned autonomous driving computing chip.

[0086] The embodiment of the present application further provides a computer program product, which includes one or more computer instructions. When the computer instructions are loaded and executed on a computing device, the process or function described in the embodiment of the present application is generated in whole or in part.

[0087] The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer or data center to another website, computer or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means.

[0088] When the computer program product is executed by a computer, the computer executes any of the aforementioned temperature control methods for the autonomous driving computing chip. The computer program product may be a software installation package, and when any of the aforementioned temperature control methods for the autonomous driving computing chip is required, the computer program product may be downloaded and executed on a computer.

[0089] The descriptions of the processes or structures corresponding to the above-mentioned figures have different emphases. For parts that are not described in detail in a certain process or structure, please refer to the relevant descriptions of other processes or structures.

[0090] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application.

Claims

1. A temperature control method for an autonomous driving computing chip, characterized in that: The autonomous driving computing chip is located in a cooling circuit, and the cooling circuit also includes a water pump, a heater, and a cooler. The water pump is in a normally open state. The method includes: Acquire a first temperature of the environment and a first temperature of the coolant; Determine whether the first temperature of the environment is within a temperature range corresponding to the autonomous driving computing chip, and obtain a first determination result; If the first judgment result indicates that the first temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, then determining whether the first temperature of the coolant is greater than the first temperature of the environment to obtain a second judgment result; If the second judgment result indicates that the first temperature of the coolant is not greater than the first temperature of the environment, controlling the heater to turn on and the cooler to turn off; If the second judgment result indicates that the first temperature of the cooling is greater than the first temperature of the environment, then determining whether the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the automatic driving computing chip to obtain a third judgment result; If the third judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the automatic driving computing chip, controlling the heater to be turned off and the cooler to be turned off; If the third judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip, the heater is controlled to be turned off and the cooler is controlled to be turned on.

2. The method according to claim 1, characterized in that If the third judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the automatic driving computing chip, after controlling the heater to be turned off and the cooler to be turned off, the method further includes: Acquire a second temperature of the environment and a second temperature of the coolant, wherein the second temperature of the environment is the temperature of the environment after the heater is turned off and a first preset time has passed, and the second temperature of the coolant is the temperature of the coolant after the heater is turned off and a first preset time has passed; If the second temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the second temperature of the coolant is less than or equal to the difference between the second temperature of the environment and the first preset return temperature, the heater is controlled to turn on; or, If the second temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the second temperature of the coolant is less than or equal to the minimum value of the temperature range corresponding to the autonomous driving computing chip, the heater is controlled to turn on.

3. The method according to claim 1, characterized in that If the third judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the automatic driving computing chip, after controlling the heater to be turned off and the cooler to be turned on, the method further includes: Acquire a third temperature of the environment and a third temperature of the coolant, wherein the third temperature of the environment is the temperature of the environment after the cooler is turned on and a first preset time has passed, and the third temperature of the coolant is the temperature of the coolant after the cooler is turned on and a first preset time has passed; If the third temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the third temperature of the coolant is less than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature, the cooler is controlled to be turned off.

4. The method according to claim 1, characterized in that: After controlling the heater to turn on and the cooler to turn off if the second judgment result indicates that the first temperature of the coolant is not greater than the first temperature of the environment, the method further includes: Acquire a fourth temperature of the environment and a fourth temperature of the coolant, wherein the fourth temperature of the environment is the temperature of the environment after the heater is turned on and a first preset time has passed, and the fourth temperature of the coolant is the temperature of the coolant after the heater is turned on and a first preset time has passed; If the fourth temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the fourth temperature of the coolant is greater than or equal to the fourth temperature of the environment, then the heater is controlled to be turned off; or, If the fourth temperature of the environment is within the temperature range corresponding to the autonomous driving computing chip, and the fourth temperature of the coolant is greater than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature, the heater is controlled to be turned off.

5. The method according to claim 1, characterized in that The method further comprises: If the first judgment result indicates that the first temperature of the environment is not within the temperature range corresponding to the autonomous driving computing chip, then determining whether the first temperature of the coolant is greater than a minimum value of the temperature range corresponding to the autonomous driving computing chip to obtain a fourth judgment result; If the fourth judgment result indicates that the first temperature of the coolant is not greater than the minimum value of the temperature range corresponding to the automatic driving computing chip, then controlling the heater to turn on and the cooler to turn off; If the fourth judgment result indicates that the first temperature of the coolant is greater than the minimum value of the temperature interval corresponding to the autonomous driving computing chip, then determining whether the first temperature of the coolant is less than the maximum value of the temperature interval corresponding to the autonomous driving computing chip to obtain a fifth judgment result; If the fifth judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the automatic driving computing chip, the heater is controlled to be turned off and the cooler is controlled to be turned off; If the fifth judgment result indicates that the first temperature of the coolant is greater than the maximum value of the temperature range corresponding to the automatic driving computing chip, the heater is controlled to be turned off and the cooler is controlled to be turned on.

6. The method according to claim 5, characterized in that If the fourth judgment result indicates that the first temperature of the coolant is not greater than the minimum value of the temperature range corresponding to the automatic driving computing chip, after controlling the heater to turn on and the cooler to turn off, the method further includes: Acquiring a fifth temperature of the coolant, where the fifth temperature of the coolant is the temperature of the coolant after the heater is turned on and a second preset time has passed; If the fifth temperature of the coolant is greater than or equal to the sum of the minimum value of the temperature range corresponding to the autonomous driving computing chip and the third preset return temperature, the heater is controlled to be turned off.

7. The method according to claim 5, characterized in that If the fifth judgment result indicates that the first temperature of the coolant is greater than the maximum value of the temperature range corresponding to the automatic driving computing chip, after controlling the heater to be turned off and the cooler to be turned on, the method further includes: Acquiring a sixth temperature of the coolant, where the sixth temperature of the coolant is the temperature of the coolant after the cooler is turned on and a second preset time has passed; If the sixth temperature of the coolant is less than or equal to the difference between the maximum value of the temperature range corresponding to the autonomous driving computing chip and the second preset return temperature, the cooler is controlled to be turned off.

8. A temperature control device for an autonomous driving computing chip, characterized in that: The device comprises: An acquisition module, used for acquiring a first temperature of the environment and a first temperature of the coolant; A first judgment module, used to judge whether the first temperature of the environment is within the temperature range corresponding to the automatic driving computing chip, and obtain a first judgment result; a second judgment module, configured to judge whether the first temperature of the coolant is greater than the first temperature of the environment if the first judgment result indicates that the first temperature of the environment is within the temperature range corresponding to the automatic driving computing chip, to obtain a second judgment result; a control module, configured to control the heater to turn on and the cooler to turn off if the second judgment result indicates that the first temperature of the coolant is not greater than the first temperature of the environment; a third judgment module, configured to judge whether the first temperature of the coolant is less than a maximum value of a temperature range corresponding to the automatic driving computing chip, if the second judgment result indicates that the first cooling temperature is greater than the first temperature of the environment, to obtain a third judgment result; The control module is further used to control the heater to be turned off and the cooler to be turned off if the third judgment result indicates that the first temperature of the coolant is less than the maximum value of the temperature range corresponding to the autonomous driving computing chip; and to control the heater to be turned off and the cooler to be turned on if the third judgment result indicates that the first temperature of the coolant is not less than the maximum value of the temperature range corresponding to the autonomous driving computing chip.

9. A computing device, characterized in that including memory and processor; One or more computer programs are stored in the memory, and the one or more computer programs include instructions; when the instructions are executed by the processor, the computing device executes the method as claimed in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store a computer program, and the computer program is used to execute the method according to any one of claims 1 to 7.

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