Heat dissipation system of domain controller, heat dissipation control method of domain controller and vehicle

Abstract

The invention provides a domain controller cooling system, a domain controller cooling control method and a vehicle. The domain controller cooling system comprises a power supply module, a cooling module, a temperature sensor and a domain controller. The temperature sensor detects the current temperature of the domain controller and sends a detection signal to the domain controller; the domain controller receives the detection signal and obtains the current residual electric quantity of the power supply module when the current temperature is greater than a preset temperature; the domain controller is further used for comparing the remaining electric quantity with the power consumption of the charging station closest to the position where the current vehicle is located, and when the remaining electric quantity is smaller than the power consumption, a nearby safe area parking instruction is sent to the vehicle, and the heat dissipation module does not work; and when the residual electric quantity is greater than or equal to the sum of the power consumption and the redundant electric quantity, controlling the heat dissipation module to work so as to dissipate heat. The domain controller cooling system can cool the domain controller based on different detection information, so that the cooling reliability of the domain controller and the use reliability of the vehicle are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle control, and more specifically, to a domain controller heat dissipation system, a heat dissipation control method for a domain controller, and a vehicle. Background Art

[0002] Currently, many vehicles (such as driverless vehicles, unmanned logistics vehicles, etc.) have adopted autonomous driving technology to replace manual driving, thereby saving manpower. Autonomous driving is mainly controlled by an internal domain controller. With the upgrade of autonomous driving technology, more chips need to be integrated in the domain controller. As a result, the power of the domain controller increases, and it generates a lot of heat, which causes the domain controller to freeze and affects the operation of the vehicle. In severe cases, it may even cause the domain controller to burn out, posing a certain safety hazard.

[0003] In related technologies, the vehicle is usually powered off for heat dissipation. When the temperature of the domain controller drops to a temperature at which it can work normally, the vehicle is powered on again. In this way, the heat dissipation efficiency is low, and when the vehicle temperature is too high, the vehicle cannot be used normally due to power off, thus affecting the actual use effect of the vehicle. Summary of the Invention

[0004] To solve the above problems, the present application provides a domain controller heat dissipation system, a heat dissipation control method for a domain controller, and a vehicle. The domain controller heat dissipation system can dissipate heat from the domain controller based on different detection information, ensuring the heat dissipation reliability of the domain controller and the use reliability of the vehicle.

[0005] In a first aspect, the present application provides a domain controller heat dissipation system, including: a power supply module, a heat dissipation module, a temperature sensor, and a domain controller; the power supply module is used to supply power to the heat dissipation module, the temperature sensor, and the domain controller; the temperature sensor is used to detect the current temperature of the domain controller and send a detection signal to the domain controller; the domain controller is used to receive the detection signal and, when the detection signal indicates that the current temperature is greater than a first preset temperature, obtain the remaining power information of the current power supply module; the domain controller is further used to compare the remaining power with the power consumption of the charging station closest to the current location of the vehicle, and when the remaining power is less than the power consumption, send a parking instruction to the vehicle to park in the nearest safe area, and the heat dissipation module does not work; and when the remaining power is greater than or equal to the sum of the power consumption and the redundant power, control the heat dissipation module to work for heat dissipation; where the safe area is an area outside the charging station, and the redundant power includes at least the power required for the heat dissipation module and the temperature sensor during the vehicle's travel to the charging station.

[0006] The domain controller cooling system provided by the embodiments of the present application enables the domain controller to achieve heat dissipation under different conditions. For example, when the remaining power of the power supply module in the vehicle is less than or equal to the power consumption of the nearest charging station, to ensure the driving safety of the vehicle, the vehicle can drive to a safe area and enter the sleep state for heat dissipation. When the remaining power of the power supply module is greater than or equal to the sum of the power consumption of the nearest charging station and the redundant power, to ensure the heat dissipation effect, the domain controller can control the cooling module to turn on for heat dissipation. In this way, the domain controller in the vehicle can achieve heat dissipation under different vehicle conditions, ensuring the reliability of heat dissipation for the domain controller, and further ensuring the reliability of use of the vehicle applying the domain controller.

[0007] In a possible design, the domain controller is further configured to send a sleep request instruction and the current vehicle location information to the cloud after the vehicle is in a safe area, and enter the sleep state after receiving the control sleep instruction sent by the cloud.

[0008] Based on the above optional method, to avoid the problem that the vehicle entering the sleep state when located in the driving lane or intersection may affect traffic and pose certain potential safety hazards, when the domain controller detects that the remaining power of the power supply module is less than the power consumption, it will first send a parking instruction to the vehicle to stop at the nearest safe area. Here, the safe area refers to the area outside the charging station, such as a parking lot, a roadside parking space, etc. To enable the back-end operator to understand the location information of the vehicle and control the vehicle, after the vehicle drives to the safe area, the domain controller will send the current vehicle location information to the cloud to remind the back-end operator that the vehicle has arrived at the safe area. At the same time, the domain controller will also send a sleep request instruction to the cloud. The back-end operator can judge whether the domain controller needs to enter the sleep state for heat dissipation according to the actual situation. If necessary, the back-end operator can press a sleep button or confirm to turn on the sleep mode in the background to send a control sleep instruction to the domain controller. When the domain controller receives the sleep instruction, it enters the sleep state for heat dissipation, thus achieving the heat dissipation effect.

[0009] In a possible design, after the domain controller controls the cooling module to dissipate heat, when receiving a detection signal indicating that the current temperature is less than the second preset temperature, the domain controller is further configured to control the cooling module to stop dissipating heat, where the second preset temperature is less than the first preset temperature.

[0010] Based on the above optional method, when the current temperature is less than the second preset temperature, the domain controller is further configured to control the cooling module to stop dissipating heat to avoid excessive energy consumption caused by the continuous operation of the cooling module, thus causing a certain energy loss problem.

[0011] In a possible design, the heat dissipation module includes a relay and a heat dissipation unit; the relay, the heat dissipation unit, and the power supply module are connected in series. When the remaining power is greater than or equal to the sum of the power consumption and the redundant power, the relay is turned on, and the heat dissipation unit starts to dissipate heat; when the current temperature is less than the second preset temperature, the relay is turned off, and the heat dissipation unit stops dissipating heat.

[0012] Based on the above optional method, the domain controller can control the on / off of the relay based on the detection signal, so that the heat dissipation unit starts or stops dissipating heat, with a simple structure and easy to control.

[0013] In a possible design, the heat dissipation unit includes a thermoelectric cooler, a heat insulation pad, a heat dissipation aluminum plate, and a fan; the heat insulation pad is fixed on one side of the heat dissipation aluminum plate, the fan is fixed on the other side of the heat dissipation aluminum plate, a through groove is provided on the heat insulation pad, the thermoelectric cooler is located in the through groove, the thermoelectric cooler includes a cooling surface and a heating surface, the cooling surface is in contact with the outer shell of the domain controller, and the heating surface is in contact with the heat dissipation aluminum plate.

[0014] Based on the above optional method, the present application can achieve heat dissipation of the domain controller through the thermoelectric cooler, with a simple structure, small occupied area, and high heat dissipation reliability. And through the heat insulation pad and the heat dissipation aluminum plate, the heat released by the heating surface can be blocked, avoiding the problem that the heat flows back to the cooling surface and affecting the cooling effect of the thermoelectric cooler. Then, through the fan, the heat released by the heating surface of the thermoelectric cooler can be discharged from the vehicle, ensuring the reliability of the thermoelectric cooler for refrigeration.

[0015] In a possible design, the domain controller heat dissipation system further includes a reminder module; the reminder module is connected in series with the heat dissipation module, and the reminder module is used to send a reminder message outward when the heat dissipation module is running. The redundant power also includes the power required by the reminder module during the process of the vehicle traveling to the charging station.

[0016] Based on the above optional method, the present application can give a reminder to nearby people through the reminder module, ensuring the heat dissipation safety of the vehicle.

[0017] In a second aspect, the present application provides a heat dissipation control method for a domain controller, including: receiving a detection signal, and when the detection signal indicates that the current temperature is greater than the first preset temperature, obtaining the remaining power information of the current power supply module; comparing the remaining power with the power consumption of the charging station closest to the current vehicle location; when the remaining power is less than the power consumption, sending a parking instruction to the vehicle in the nearest safe area, and the heat dissipation module does not work; when the remaining power is greater than or equal to the sum of the power consumption and the redundant power, controlling the heat dissipation module to work for heat dissipation.

[0018] The heat dissipation control method of the domain controller provided by the embodiments of the present application enables the domain controller to achieve heat dissipation under different conditions. For example, when the remaining power of the power supply module in the vehicle is less than or equal to the power consumption of the nearest charging station, in order to ensure the driving safety of the vehicle, the vehicle can travel to a safe area and enter the sleep state for heat dissipation. When the remaining power of the power supply module is greater than or equal to the sum of the power consumption of the nearest charging station and the redundant power, in order to ensure the heat dissipation effect, the domain controller can control the heat dissipation module to turn on for heat dissipation. In this way, the domain controller in the vehicle can achieve heat dissipation under different vehicle conditions, ensuring the reliability of heat dissipation of the domain controller, and further ensuring the reliability of use of the vehicle applying the domain controller.

[0019] In a possible design, when the remaining power is less than the power consumption, sending a parking instruction to the vehicle to the nearest safe area includes: after the vehicle reaches the safe area, sending a sleep request instruction and the current location information of the vehicle to the cloud, and entering the sleep state after receiving the control sleep instruction sent by the cloud.

[0020] Based on the above optional method, in order to avoid the problem that the vehicle being in the driving lane or intersection when sleeping will affect traffic and pose a certain safety hazard, when the domain controller detects that the remaining power of the power supply module is less than the power consumption, it will first send a parking instruction to the vehicle to the nearest safe area. In order to enable the background operator to understand the location information of the vehicle and control the vehicle, after the vehicle travels to the safe area, the domain controller will send the current location information of the vehicle to the cloud to remind the background operator that the vehicle has arrived at the safe area. At the same time, the domain controller will also send a sleep request instruction to the cloud. The background operator can judge whether the domain controller needs to sleep for heat dissipation according to the actual situation. If necessary, the background operator can press a sleep button or confirm to turn on the sleep mode in the background to send a control sleep instruction to the domain controller. When the domain controller receives the sleep instruction, it enters the sleep state for heat dissipation, thus achieving the heat dissipation effect.

[0021] In a possible design, when the remaining power is greater than or equal to the sum of the power consumption and the redundant power, controlling the heat dissipation module to dissipate heat includes: after controlling the heat dissipation module to dissipate heat, when receiving a detection signal indicating that the current temperature is less than the second preset temperature, it is also used to control the heat dissipation module to stop dissipating heat.

[0022] Based on the above optional method, when the current temperature is less than the second preset temperature, the domain controller is also used to control the heat dissipation module to stop dissipating heat to avoid the problem that the continuous operation of the heat dissipation module consumes more energy, resulting in a certain amount of energy loss.

[0023] In a third aspect, the present application provides a vehicle, which includes the domain controller cooling system described in any optional manner of the first aspect or includes a domain controller. The domain controller includes a memory and a processor; the memory is used for storing executable program codes; the processor is used for calling and running the executable program codes from the memory, so that the vehicle executes the cooling control method of the domain controller described in any optional manner of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. 6 is a schematic diagram of the frame structure of a domain controller cooling system provided by an embodiment of the present application;

[0025] Figure 2 FIG. 10 is a schematic diagram of the frame structure of another domain controller cooling system provided by an embodiment of the present application;

[0026] Figure 3 FIG. 14 is a schematic diagram of the frame structure of yet another domain controller cooling system provided by an embodiment of the present application;

[0027] Figure 4 FIG. 18 is a schematic diagram of the exploded structure of a cooling unit provided by an embodiment of the present application;

[0028] Figure 5 FIG. 22 is a schematic diagram of the frame structure of another domain controller cooling system provided by an embodiment of the present application;

[0029] Figure 6 FIG. 26 is a schematic diagram of the flowchart of the cooling control method of the domain controller provided by an embodiment of the present application.

[0030] Among them, each reference numeral in the figure:

[0031] 1, domain controller cooling system; 11, power supply module; 12, cooling module; 121, relay; 1211, coil; 1212, armature switch; 122, cooling unit; 1221, thermoelectric cooler; 1222, heat insulation pad; 1222A, through groove; 1223, heat dissipation aluminum plate; 1224, fan; 13, temperature sensor; 14, domain controller; 15, reminder module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, and circuits are omitted to avoid unnecessary details from interfering with the description of the present application.

[0033] With the continuous development of autonomous driving technology, more and more places have begun to adopt vehicles with autonomous driving functions, such as driverless cars, unmanned logistics vehicles, etc., to replace manual driving, thereby saving a certain amount of labor. Currently, the autonomous driving function is mainly controlled by the domain controller inside the vehicle. However, with the upgrade of autonomous driving technology, more chips need to be integrated into the domain controller so that the domain controller can execute more steps. As a result, the power of the domain controller increases, and it generates a lot of heat, which causes the domain controller to freeze and affects the operation of the vehicle. In severe cases, it may even cause the domain controller to burn out, posing a certain safety hazard.

[0034] Currently, when the problem of severe heat generation in the domain controller occurs during the operation of the vehicle, the related technology usually powers off the vehicle for heat dissipation. When the temperature of the domain controller automatically drops to a temperature at which it can work normally, the vehicle is powered on again. In this way, the heat dissipation efficiency is low, and when the vehicle is powered off due to excessive temperature, the vehicle cannot operate normally, thus affecting the actual use effect of the vehicle. The related technology also uses a water-cooling heat dissipation method to dissipate heat from the domain controller. However, the cost of the water-cooling device is high, and its volume and occupied area are large. In this way, the overall volume of the vehicle is increased, and during the heat dissipation process, there may be a risk of water leakage in the water-cooling device, posing a certain safety hazard.

[0035] Therefore, this application provides a domain controller heat dissipation system, a heat dissipation control method for the domain controller, and a vehicle. The domain controller heat dissipation system can dissipate heat from the domain controller based on different detection information, ensuring the heat dissipation reliability of the domain controller and the use reliability of the vehicle.

[0036] The following will provide an exemplary introduction to the domain controller heat dissipation system, the heat dissipation control method for the domain controller, and the vehicle provided by this application with reference to the accompanying drawings.

[0037] Here, it is worth noting that the domain controller heat dissipation system provided by the embodiments of this application can be applied to vehicles or other devices. This application does not make specific limitations in this regard. The following will provide an exemplary description with the domain controller heat dissipation system provided by the embodiments of this application applied to a vehicle.

[0038] As Figure 1As shown, the domain controller cooling system 1 provided by the embodiment of the present application includes a power supply module 11, a cooling module 12, a temperature sensor 13, and a domain controller 14. When the vehicle is powered on, the power supply module 11 is used to supply power to the cooling module 12, the temperature sensor 13, and the domain controller 14. Here, it can be understood that the number of power supply modules 11 can be set according to actual needs. For example, assuming that it is desired to reduce the connection lines between various systems in the vehicle to reduce the energy loss problem in the lines, multiple power supply modules 11 can be set to supply power to the modules in different systems in the vehicle (such as the cooling system, the driving system, etc.) respectively, reducing the connection lines between the systems. Another example is that assuming that it is desired for the vehicle to develop towards miniaturization and lightweight, only one power supply module 11 can be set. In this regard, the present application does not make specific limitations.

[0039] Optionally, the power supply module 11 can be a storage battery.

[0040] After the vehicle is powered on, the domain controller 14 and the temperature sensor 13 start to operate. Among them, the temperature sensor 13 is used to detect the current temperature of the domain controller 14 and generate a corresponding detection signal based on the detected current temperature to the domain controller 14, so that the domain controller 14 can make a corresponding response based on the detection signal.

[0041] Optionally, a comparison data can be preset in the domain controller 14, that is, a first preset temperature can be set in the domain controller 14. The temperature sensor 13 detects the real-time temperature of the domain controller 14 and sends the detection signal representing the current temperature to the domain controller 14. The domain controller 14 compares the current temperature with the first preset temperature. When the current temperature is less than the first preset temperature, the domain controller 14 does not need to dissipate heat; when the current temperature is greater than or equal to the first preset temperature, that is, the domain controller 14 is overheated and needs to dissipate heat.

[0042] When a first preset temperature is preset in the domain controller 14, the domain controller 14 also needs to compare the current temperature with the first preset temperature. In this way, the execution steps of the domain controller 14 are increased, resulting in an increase in the power of the domain controller 14, which may further cause the domain controller 14 to generate more heat. Therefore, optionally, the first preset temperature can be preset in the chip of the temperature sensor 13. When the temperature sensor 13 detects that the current temperature is less than the first preset temperature, the temperature sensor 13 may not send a detection signal to the domain controller 14. When the temperature sensor 13 detects that the current temperature is greater than or equal to the first preset temperature, the temperature sensor 13 sends a detection signal to the domain controller 14, enabling the domain controller 14 to make a corresponding response based on the detection signal. At this time, the detection signal is the signal when the current temperature is greater than or equal to the first preset temperature. Exemplarily, the first preset temperature can be 20 °C (degrees Celsius). When the temperature sensor 13 detects that the current temperature of the domain controller 14 is 15 °C, it does not send a signal to the domain controller 14 and continues to perform real-time detection of the current temperature. When the temperature sensor 13 detects that the current temperature of the domain controller 14 is 20 °C, it sends a low-current signal (i.e., the detection signal) to the domain controller 14 and continues to perform real-time detection of the current temperature. At this time, the low-current signal indicates that the current temperature of the domain controller 14 has exceeded the normal temperature, and thus heat dissipation for the domain controller 14 is required. In this way, the temperature sensor 13 compares the current temperature with the first preset temperature, eliminating the need to add an additional comparison process in the domain controller 14, reducing the design cost of the domain controller 14, and avoiding the problem of the domain controller 14 generating excessive power and further heating up.

[0043] When the detection signal received by the domain controller 14 indicates that the current temperature is less than the first preset temperature, it means that the current temperature of the domain controller 14 is normal and no heat dissipation is required. When the detection signal received by the domain controller 14 indicates that the current temperature is greater than or equal to the first preset temperature, it means that the current temperature of the domain controller 14 is abnormal and heat dissipation is required. At this time, the domain controller 14 needs to determine the heat dissipation mode corresponding to the current vehicle information in combination with the current vehicle information to ensure the heat dissipation reliability of the domain controller 14.

[0044] In one example, the vehicle information may include the remaining power information of the power supply module 11, the power consumption information of the distance from the current vehicle location to the nearest charging station, and the redundant power information. Here, it is worth noting that the heat dissipation module 12 is usually in a non-operating state and only works when the temperature of the domain controller 14 is abnormal. Therefore, the power consumption at this time may refer to the power required for the normal operation of other systems (such as the positioning system, communication system, etc.) except the heat dissipation module 12 during the whole process of the vehicle traveling to the nearest charging station. The redundant power provided in the embodiments of the present application may refer to the power required for the operation of the heat dissipation module 12 during the whole process of the vehicle traveling to the nearest charging station. The domain controller 14 may determine the heat dissipation mode applicable to the current vehicle based on this vehicle information.

[0045] Exemplarily, when the domain controller 14 detects that the remaining power of the power supply module 11 in the vehicle is less than the power consumption, it means that the remaining power of the vehicle cannot meet the power required during the whole process of the vehicle driving to the nearest charging station. At this time, the vehicle cannot drive to the nearest charging station for charging, that is, the remaining power of the power supply module 11 cannot meet the normal operation requirements of the vehicle. At the same time, because the remaining power is lower than the power consumption, the vehicle's power is too low to be dissipated by the heat dissipation module 12. Here, it can be understood that when the remaining power of the power supply module 11 is too low (i.e., lower than the power consumption), if the heat dissipation module 12 is started to dissipate heat from the domain controller 14, more power will be consumed during the heat dissipation process. In this way, it may lead to the problem that the system in the vehicle cannot work properly and fails after the remaining power of the power supply module 11 is exhausted. At the same time, it may also cause the vehicle to be unable to continue driving. Therefore, when the domain controller 14 detects that the remaining power of the power supply module 11 in the vehicle is less than the power consumption, at this time, the domain controller 14 can be set to the sleep mode so that the domain controller 14 can stop generating heat and dissipate heat in the sleep mode. At this time, the heat dissipation module 12 does not work. In order to avoid the problem that the vehicle being in the sleep mode when located in the driving lane or intersection will affect the traffic and there are certain safety hazards, when the domain controller 14 detects that the remaining power of the power supply module 11 is less than the power consumption, it will first send a parking instruction to the vehicle to stop at the nearest safe area. Here, it is worth noting that the safe area refers to the area outside the charging station, for example, a parking lot, a roadside parking space, etc. In order to enable the background operator to know the location information of the vehicle and control the vehicle, after the vehicle drives to the safe area, the domain controller 14 will send the current location information of the vehicle to the cloud to remind the background operator that the vehicle has arrived at the safe area. At the same time, the domain controller 14 will also send a sleep request instruction to the cloud. The background operator can judge whether the domain controller 14 needs to sleep for heat dissipation according to the actual situation. If necessary, a sleep button can be pressed in the background or the sleep mode can be confirmed to be turned on to send a control sleep instruction to the domain controller 14. When the domain controller 14 receives the sleep instruction, it enters the sleep state for heat dissipation, so as to achieve the effect of heat dissipation. At this time, in order to avoid additional power consumption, the heat dissipation module 12 remains in the non-working state.

[0046] Compared with the technical means of powering off the vehicle for heat dissipation in the related art, the present application can control the vehicle to travel to a safe area when the domain controller 14 detects that the remaining power of the power supply module 11 in the vehicle is less than the power consumption, and the backstage operator controls the vehicle to be in sleep mode, so that the domain controller 14 can stop generating heat and dissipate heat in sleep mode. In this way, there is no need for the operator to go near the vehicle to power off the vehicle, the operation is simple, and a certain amount of manpower is saved. In the related art, after the vehicle is powered off for heat dissipation, if the vehicle is restarted, a large amount of electricity is consumed, while the domain controller 14 in the present application heats up by sleeping, and the power consumed by releasing the sleep mode is low, thus reducing a certain amount of power consumption. In addition, in order to avoid the problem that starting the heat dissipation module 12 to dissipate heat for the domain controller 14 will consume a lot of electricity, resulting in the problem that the system in the vehicle cannot work normally after the remaining power of the power supply module 11 is exhausted, at this time, the heat dissipation module 12 is controlled to remain in an inoperative state, and the domain controller 14 is controlled to sleep for heat dissipation, so as to avoid the problem of additional power consumption affecting the use of the vehicle, and ensure the reliability of the vehicle.

[0047] Here, it is worth noting that when the domain controller 14 is dormant, the temperature sensor 13 is still in working state, that is, the temperature sensor 13 still detects the current temperature of the domain controller 14 in the dormant state in real time. In order to ensure the reliability of the operation of the domain controller 14 after cooling, a second preset temperature can be preset in the chip in the temperature sensor 13, and the second preset temperature is lower than the first preset temperature. In this way, when the temperature sensor 13 detects that the current temperature of the domain controller 14 in the dormant state is lower than the second preset temperature, the domain controller 14 is released from dormancy to ensure that there is a certain temperature difference between the current temperature and the first preset temperature. Even if the vehicle continues to operate at this time, it can ensure that the temperature of the domain controller 14 is lower than the first preset temperature, so that the domain controller 14 can work normally.

[0048] In this example, the operator can control the vehicle according to actual needs. For example, taking an unmanned logistics vehicle as an example, assuming that it is required for the unmanned logistics vehicle to continue logistics transportation, the staff member closest to it can be dispatched to replace the power supply module 11 so that the unmanned logistics vehicle can continue logistics transportation after the heat dissipation is completed. Assuming that it is not required for the unmanned logistics vehicle to continue working, since the remaining power at this time is less than the power required for the unmanned logistics vehicle to travel to the nearest charging station, in order to avoid the problem that the traffic will be affected when the remaining power is exhausted during the driving of the unmanned logistics vehicle and it stops on the driving lane or at the intersection, the unmanned logistics vehicle can be made to drive towards a safe area near the nearest charging station. At this time, the safe area can refer to the nearest safe area that the remaining power can support the unmanned logistics vehicle to reach the nearest charging station. Here, it can be understood that when the unmanned logistics vehicle is driving towards the nearest safe area to the nearest charging station, the temperature sensor 13 still detects the current temperature of the domain controller 14 in real time. When the temperature sensor 13 detects that the current temperature of the domain controller 14 during the driving of the unmanned logistics vehicle is greater than the first preset temperature again, the above steps are repeated, that is, the domain controller 14 is controlled to sleep in the safe area for heat dissipation until the current temperature is less than the second preset temperature, and then the domain controller 14 works to make the unmanned logistics vehicle drive again. In order to avoid the problem that the unmanned logistics vehicle drives towards other nearby safe areas after restarting, resulting in low driving efficiency of the unmanned logistics vehicle, the nearest safe area to the nearest charging station set last time can be set as a fixed point position, so that the restarted unmanned logistics vehicle still drives towards this fixed point position, avoiding the problem that the unmanned logistics vehicle travels back and forth, affecting the driving efficiency of the unmanned logistics vehicle. When the vehicle is located in the nearest safe area that it can reach to the nearest charging station, the unmanned logistics vehicle can be towed to the charging station with equipment such as a trailer. For this, the present application does not make specific restrictions.

[0049] In order to further avoid the problem that the driving vehicle will affect the traffic when it stops on the driving lane or at the intersection after the remaining power is exhausted, a minimum power reminder module can also be provided in the vehicle provided by the embodiment of the present application. The minimum power reminder module can be electrically connected to the domain controller 14, and the minimum power information is set in the minimum power reminder module. The domain controller 14 can send the remaining power information of the power supply module 11 to the minimum power reminder module in real time. When the remaining power received by the minimum power reminder module is lower than the minimum power, the minimum power reminder module will send a warning message to the cloud. This warning message indicates that the remaining power of the power supply module 11 in the vehicle is too low at present, and it is recommended to stop at the nearest safe area in time, so that the background operator can park the vehicle at a safe position based on this warning message. In this way, the problem that the traffic will be affected when the vehicle stops on the driving lane or at the intersection after the remaining power is exhausted can be avoided.

[0050] It can be understood that a main controller is provided in the vehicle, and a Global Positioning System (GPS), a communication system, etc. are provided on the main controller to obtain the position information and other information of the vehicle. For this, no specific limitations are imposed in this application.

[0051] In this way, when the remaining power of the power supply module 11 in the vehicle is less than the power consumption of the nearest charging station, the vehicle can be made to be in a safe area, and the domain controller 14 is controlled to enter the sleep state, so that the domain controller 14 stops working. In this way, the heat is automatically reduced, and the operation is simple.

[0052] When the domain controller 14 detects that the remaining power of the power supply module 11 in the vehicle is greater than or equal to the sum of the power consumption of the nearest charging station and the redundant power, at this time, the vehicle can drive to the charging station for charging, that is, the remaining power of the power supply module 11 can meet the normal demand and the heat dissipation demand of the vehicle. Therefore, the domain controller 14 can start the heat dissipation module 12 to make the heat dissipation module 12 enter the working mode to dissipate the heat generated by the domain controller 14. In order to avoid the problem that the continuous operation of the heat dissipation module 12 consumes more energy and causes a certain amount of energy loss, after the heat dissipation module 12 is started, the temperature sensor 13 is still in the working state, that is, the temperature sensor 13 still detects the current temperature of the domain controller 14 in the heat dissipation state in real time and sends the detection signal to the domain controller 14. At this time, a second preset temperature can be set in the domain controller 14 or the temperature sensor 13. When the current temperature is less than the second preset temperature, the domain controller 14 is further configured to control the heat dissipation module 12 to stop dissipating heat, so as to avoid the problem that the continuous operation of the heat dissipation module 12 consumes more energy and causes a certain amount of energy loss.

[0053] In summary, the domain controller heat dissipation system provided by the embodiments of the present application enables the domain controller 14 to dissipate heat in different situations. For example, when the remaining power of the power supply module 11 in the vehicle is less than or equal to the power consumption of the nearest charging station, in order to ensure the driving safety of the vehicle, the vehicle can drive to a safe area and enter the sleep state for heat dissipation. At this time, the heat dissipation module 12 does not work. When the remaining power of the power supply module 11 is greater than or equal to the sum of the power consumption of the nearest charging station and the redundant power, in order to ensure the heat dissipation effect, the domain controller 14 can control the heat dissipation module 12 to work for heat dissipation. In this way, the domain controller 14 in the vehicle can dissipate heat under different vehicle conditions, ensuring the heat dissipation reliability of the domain controller 14, and further ensuring the use reliability of the vehicle applying the domain controller 14.

[0054] In one example, such as Figure 2As shown, the heat dissipation module 12 may include a relay 121 and a heat dissipation unit 122. The relay 121, the heat dissipation unit 122, and the power supply module 11 are connected in series. When the remaining power of the power supply module 11 is greater than or equal to the sum of the power consumption and the redundant power, the domain controller 14 controls the relay 121 to conduct, and the heat dissipation unit 12 is connected to the power supply to start heat dissipation until the detection signal received by the domain controller 14 indicates that the current temperature is less than the second preset temperature. Then, the domain controller 14 controls the relay 121 to disconnect, and the heat dissipation unit 122 stops heat dissipation. In this way, the domain controller 14 can control the on / off of the relay 121 based on the detection signal, so that the heat dissipation unit 122 starts or stops heat dissipation. The structure is simple and easy to control.

[0055] Optionally, as Figure 3 shown, the relay 121 may be an electromagnetic relay. The electromagnetic relay may include a coil 1211 and an armature switch 1212. One end of the armature switch 1212 is connected to the power supply module 11, and the other end of the armature switch 1212 is connected to the heat dissipation unit 122. The coil 1211 is arranged corresponding to the armature switch 1212. One end of the coil 1211 is connected to the domain controller 14, and the other end of the coil 1211 is grounded. The domain controller 14 can control the charging state of the coil 1211 to control the closing or opening of the armature switch 1212, so as to control the on / off between the armature switch 1212 connected thereto and the power supply module 11. The structure is simple, and the electromagnetic relay can control a larger current and a higher voltage with a smaller current and a lower voltage, which is convenient to operate and has high flexibility. Here, it is worth noting that the relay 121 may also be other switching devices, and the present application does not make specific limitations thereto.

[0056] In one example, as Figure 4 shown, the heat dissipation unit 122 may include: a thermoelectric cooler 1221, a heat insulation pad 1222, a heat dissipation aluminum plate 1223, and a fan 1224. The heat insulation pad 1222 is fixed on one surface of the heat dissipation aluminum plate 1223, and the fan 1224 is fixed on the other surface of the heat dissipation aluminum plate 1223. Among them, a through groove is provided on the heat insulation pad 1222 (as Figure 4As shown in Figure 1222A), the through slot 1222A is used to accommodate the thermoelectric cooler 1221 to fix the thermoelectric cooler 1221 on the heat insulation pad 1222. At this time, the heat insulation pad 1222 can separate the two surfaces of the thermoelectric cooler 1221. Here, it is worth noting that the thermoelectric cooler 1221 usually includes a cooling surface and a heating surface. The thermoelectric cooler 1221 can be used as a medium for heat transfer, that is, the cooling surface of the thermoelectric cooler 1221 is in contact with the housing of the domain controller 14, and the heating surface of the thermoelectric cooler 1221 is in contact with the heat dissipation aluminum plate 1223. The heat generated by the domain controller 14 is absorbed by the cooling surface and released by the heating surface to achieve the purpose of cooling the domain controller 14. At this time, the cooling surface and the heating surface of the thermoelectric cooler 1221 are separated by the heat insulation pad 1222 to block the heat released by the heating surface and prevent the heat released by the heating surface from flowing back to the cooling surface, thereby affecting the cooling effect of the thermoelectric cooler 1221. In this way, the heat dissipation of the domain controller 14 can be achieved through the thermoelectric cooler 1221, with a simple structure and high heat dissipation reliability.

[0057] Optionally, the thermoelectric cooler 1221 can be a thermoelectric cooler (TEC).

[0058] To avoid the problem that the heat of the heating surface of the thermoelectric cooler 1221 cannot be completely discharged and the heat released by the heating surface of the thermoelectric cooler 1221 flows back to the cooling surface, thereby affecting the heat dissipation effect of the thermoelectric cooler 1221 on the domain controller 14, the heat dissipation unit 122 provided in the embodiment of the present application is provided with a heat dissipation aluminum plate 1223 and a fan 1224. The heating surface is in contact with one side of the heat dissipation aluminum plate 1223, and the fan 1224 is fixed on the other side of the heat dissipation aluminum plate 1223. The heat dissipation aluminum plate 1223 can absorb the heat released by the heating surface, and the fan 1224 can further release the heat released by the heating surface of the thermoelectric cooler 1221 to the outside of the vehicle to ensure the cooling effect of the thermoelectric cooler 1221.

[0059] The heat dissipation module 12 provided in the embodiment of the present application has a simple structure and occupies a small area. The heat released by the heating surface can be blocked by the heat insulation pad 1222 and the heat dissipation aluminum plate 1223 to avoid the problem that the heat flows back to the cooling surface and affects the cooling effect of the thermoelectric cooler 1221. Then, the heat released by the heating surface of the thermoelectric cooler 1221 can be discharged from the vehicle through the fan 1224, ensuring the reliability of the cooling of the thermoelectric cooler 1221.

[0060] In one example, as Figure 5As shown, the domain controller cooling system may further include a reminder module 15. The reminder module 15 is connected in series with the cooling module 12. The reminder module 15 can send out a reminder message when the cooling module 12 is operating, that is, at this time, the vehicle is in a cooling state and will release a large amount of heat, so as to warn the nearby personnel to stay away and avoid being scalded by the heat. In this way, the reminder module 15 can prompt the nearby personnel, ensuring the safety of the vehicle's heat dissipation. Here, it can be understood that the redundant power at this time also includes the power required by the reminder module 15 during the process of the vehicle traveling to the charging station.

[0061] Based on the domain controller cooling system provided by the embodiments of the present application, the embodiments of the present application also provide a method for controlling the heat dissipation of a domain controller, as Figure 6 shown, the method includes:

[0062] S1: Receive a detection signal, and when the detection signal indicates that the current temperature is greater than the first preset temperature, obtain the remaining power information of the current power supply module.

[0063] Here, it can be understood that the detection signal is generated by the temperature sensor 13 detecting the current temperature of the domain controller 14. For this, reference can be made to the above domain controller cooling system, and details will not be elaborated here.

[0064] S2: Compare the remaining power with the power consumption of the charging station closest to the current vehicle location.

[0065] When the detection signal received by the domain controller 14 indicates that the current temperature is less than the first preset temperature, it means that the current temperature of the domain controller 14 is normal and no heat dissipation is required. When the detection signal received by the domain controller 14 indicates that the current temperature is greater than or equal to the first preset temperature, it means that the current temperature of the domain controller 14 is abnormal and heat dissipation is required. At this time, the domain controller 14 needs to determine the corresponding heat dissipation mode according to the current vehicle information to ensure the reliability of the heat dissipation of the domain controller 14.

[0066] Exemplarily, the current vehicle information may include the remaining power information of the power supply module 11, the power consumption information of the charging station closest to the current vehicle location, and the redundant power information.

[0067] S3: When the remaining power is less than the power consumption, send a parking instruction to the vehicle to the nearest safe area; when the remaining power is greater than or equal to the sum of the power consumption and the redundant power, control the cooling module to dissipate heat.

[0068] When the domain controller 14 detects that the remaining power of the power supply module 11 in the vehicle is less than the power consumption, at this time the vehicle cannot drive to the charging station for charging, that is, the remaining power of the power supply module 11 cannot meet the normal needs of the vehicle. The domain controller 14 can be set to the sleep mode so that the domain controller 14 can stop generating heat and dissipate heat in the sleep mode. At this time, the heat dissipation module 12 does not work. In order to avoid the problem that the vehicle being in the sleep mode when located in the driving lane or intersection will affect the traffic and there are certain potential safety hazards, when the domain controller 14 detects that the remaining power of the power supply module 11 is less than the power consumption, it will first send a parking instruction to the vehicle to stop at the nearest safe area. After the vehicle reaches the safe area, the domain controller 14 will send a sleep request instruction and the current vehicle location information to the cloud, and enter the sleep state after receiving the control sleep instruction sent by the cloud, so as to achieve the effect of heat dissipation.

[0069] When the domain controller 14 is in the sleep state, the temperature sensor 13 still detects the current temperature of the domain controller 14 in the sleep state in real time. In order to ensure the reliability of the operation of the domain controller 14 after cooling, a second preset temperature can be preset in the chip of the temperature sensor 13, and the second preset temperature is less than the first preset temperature. In this way, when the temperature sensor 13 detects that the current temperature of the domain controller 14 in the sleep state is less than the second preset temperature, the domain controller 14 wakes up from the sleep state to ensure that there is a certain temperature difference between the current temperature and the first preset temperature. Even if the vehicle continues to operate at this time, it can ensure that the temperature of the domain controller 14 is lower than the first preset temperature, so that the domain controller 14 can work or drive normally.

[0070] In this way, when the remaining power of the power supply module 11 in the vehicle is less than the power consumption of the nearest charging station, the vehicle can be in the safe area, and the domain controller 14 can be controlled to enter the sleep mode, so that the domain controller 14 stops working, and the heat is automatically reduced, and the operation is simple.

[0071] When the domain controller 14 detects that the remaining power of the power supply module 11 in the vehicle is greater than or equal to the sum of the power consumption of the nearest charging station and the redundant power, at this time, the vehicle can drive to the charging station for charging, that is, the remaining power of the power supply module 11 can meet the normal needs and heat dissipation needs of the vehicle. Therefore, the domain controller 14 can control the heat dissipation module 12 to turn on for heat dissipation. To avoid the problem that the continuous operation of the heat dissipation module 12 consumes a large amount of energy, resulting in a certain amount of energy loss, after the heat dissipation module 12 is started, the temperature sensor 13 is still in a working state, that is, the temperature sensor 13 still detects the current temperature of the domain controller 14 in the heat dissipation state in real time and sends the detection signal to the domain controller 14. At this time, a second preset temperature can be set in the domain controller 14 or the temperature sensor 13. When the current temperature is less than the second preset temperature, the domain controller 14 is further configured to control the heat dissipation module 12 to stop heat dissipation, so as to avoid the problem that the continuous operation of the heat dissipation module 12 consumes a large amount of energy, resulting in a certain amount of energy loss.

[0072] In this way, the heat dissipation control method of the domain controller provided by the embodiment of the present application can enable the domain controller 14 to achieve heat dissipation in different situations. For example, when the remaining power of the power supply module 11 in the vehicle is less than or equal to the power consumption of the nearest charging station, in order to ensure the driving safety of the vehicle, the vehicle can drive to a safe area and enter the sleep state for heat dissipation. When the remaining power of the power supply module 11 is greater than or equal to the sum of the power consumption of the nearest charging station and the redundant power, in order to ensure the heat dissipation effect, the domain controller 14 can control the heat dissipation module 12 to turn on for heat dissipation. In this way, the domain controller 14 in the vehicle can achieve heat dissipation under different vehicle conditions, ensuring the heat dissipation reliability of the domain controller 14, and further ensuring the use reliability of the vehicle applying the domain controller 14.

[0073] Based on the domain controller heat dissipation system provided by the embodiment of the present application, the embodiment of the present application further provides a vehicle, which may include a domain controller 14. The domain controller 14 may include a memory and a processor. Among them, the memory stores executable program code, and the processor is configured to call and run the executable program code from the memory, so that the vehicle executes the heat dissipation control method of the domain controller provided by the embodiment of the present application.

[0074] It should be understood that when used in the specification and the appended claims of the present application, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0075] It should also be understood that the term "and / or" used in the description of the present application specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0076] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0077] The reference to "one embodiment" or "some embodiments" etc. described in the present application specification means that a specific feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other some embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0078] The above-described embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application and should all be included within the protection scope of the present application.

Claims

1. A domain controller heat dissipation system, characterized in that, applied to a vehicle, comprising: a power supply module, a heat dissipation module, a temperature sensor and a domain controller; The power supply module is used to supply power to the heat dissipation module, the temperature sensor and the domain controller. The temperature sensor is used to detect the current temperature of the domain controller and send a detection signal to the domain controller; The domain controller is used to receive the detection signal and, when the detection signal indicates that the current temperature is greater than a first preset temperature, obtain the remaining power information of the current power supply module; The domain controller is further used to compare the remaining power with the power consumption of the charging station closest to the current location of the vehicle, and when the remaining power is less than the power consumption, send a parking instruction to the vehicle in the nearest safe area, and the heat dissipation module does not work; and when the remaining power is greater than or equal to the sum of the power consumption and the redundant power, control the heat dissipation module to work for heat dissipation; wherein, the safe area is an area outside the charging station, and the redundant power at least includes the power consumption of the heat dissipation module and the temperature sensor during the vehicle's travel to the charging station.

2. The domain controller heat dissipation system according to claim 1, characterized in that, The domain controller is further used to send a sleep request instruction and the current location information of the vehicle to the cloud after the vehicle is in the safe area, and enter the sleep state after receiving the control sleep instruction sent by the cloud.

3. The domain controller heat dissipation system according to claim 1, characterized in that, After the domain controller controls the heat dissipation module to dissipate heat, when the detection signal indicates that the current temperature is less than the second preset temperature, the domain controller is further used to control the heat dissipation module to stop dissipating heat, wherein the second preset temperature is less than the first preset temperature.

4. The domain controller heat dissipation system according to claim 3, characterized in that, The heat dissipation module includes: a relay and a heat dissipation unit; The relay, the heat dissipation unit and the power supply module are connected in series. When the remaining power is greater than or equal to the sum of the power consumption and the redundant power, the relay is turned on and the heat dissipation unit starts to dissipate heat; When the current temperature is less than the second preset temperature, the relay is turned off and the heat dissipation unit stops dissipating heat.

5. The domain controller heat dissipation system according to claim 4, characterized in that, The heat dissipation unit includes: a thermoelectric cooler, a heat insulation pad, a heat dissipation aluminum plate and a fan; The heat insulation pad is fixed on one side of the heat dissipation aluminum plate, the fan is fixed on the other side of the heat dissipation aluminum plate, a through groove is provided on the heat insulation pad, the thermoelectric cooler is located in the through groove, the thermoelectric cooler includes a cooling surface and a heating surface, the cooling surface is in contact with the outer shell of the domain controller, and the heating surface is in contact with the heat dissipation aluminum plate.

6. The domain controller heat dissipation system according to any one of claims 1-5, characterized in that, The domain controller heat dissipation system further includes a reminder module; The reminder module is connected in series with the heat dissipation module. The reminder module is used to emit a prompt message when the heat dissipation module is running. The redundant power also includes the power required by the reminder module during the process of the vehicle traveling to the charging station.

7. A heat dissipation control method for a domain controller, applied to a vehicle, characterized in that, the method includes: Receiving a detection signal, and when the detection signal indicates that the current temperature is greater than a first preset temperature, obtaining the remaining power information of the current power supply module; Comparing the remaining power with the power consumption of the charging station closest to the current location of the vehicle; When the remaining power is less than the power consumption, sending a parking instruction to the vehicle in the nearest safe area, and the heat dissipation module does not work; when the remaining power is greater than or equal to the sum of the power consumption and the redundant power, controlling the heat dissipation module to work for heat dissipation.

8. According to the heat dissipation control method of the domain controller described in claim 7, characterized in that, the step of sending a parking instruction to the vehicle in the nearest safe area when the remaining power is less than the power consumption includes: After the vehicle reaches the safe area, sending a sleep request instruction and the current location information of the vehicle to the cloud, and entering a sleep state after receiving the control sleep instruction sent by the cloud.

9. According to the heat dissipation control method of the domain controller described in claim 7, characterized in that, the step of controlling the heat dissipation module to dissipate heat when the remaining power is greater than or equal to the sum of the power consumption and the redundant power includes: After controlling the heat dissipation module to dissipate heat, when the detection signal indicates that the current temperature is less than the second preset temperature, it is also used to control the heat dissipation module to stop dissipating heat.

10. A vehicle, characterized in that, including the domain controller heat dissipation system described in any one of claims 1-6 or including a domain controller, the domain controller includes a memory and a processor; A memory for storing executable program code; A processor for calling and running the executable program code from the memory, so that the vehicle executes the heat dissipation control method of the domain controller described in any one of claims 7-9.

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