Commercial vehicle thermal management system and method

Abstract

The invention discloses a commercial vehicle thermal management system and method.The system comprises an independent liquid cooling heat dissipation system, the independent liquid cooling heat dissipation system comprises a cooling liquid circulation loop which is connected with a computing power module and a first radiator to form closed circulation, and a liquid cooling circulation pump drives cooling liquid to flow in the cooling liquid circulation loop; the first radiator dissipates heat through air cooling or the second radiator; the thermal management control system comprises a temperature sensor, a control unit and an execution mechanism, the temperature sensor is used for monitoring temperature data of the computing power module and transmitting the temperature data to the control unit, and the control unit generates a control instruction according to the temperature data and preset heat dissipation strategy data and sends the control instruction to the execution mechanism; and the execution mechanism adjusts the working states of the liquid cooling circulating pump and the second radiator according to the control instruction. The heat dissipation device aims at conducting efficient heat dissipation on the computing power module in the commercial vehicle, so that the computing power module can operate efficiently, and the technical problems that in the prior art, a computing power unit lacks an effective heat dissipation scheme, and computing power is reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle thermal management, and in particular to a whole vehicle thermal management system and method for a commercial vehicle. Background Art

[0002] With the rapid development of artificial intelligence technology, driverless technology, as an important branch of it, has made significant progress. Driverless technology needs to process massive amounts of data and perform complex computing tasks, which puts higher requirements on the performance of computing units and also brings more severe thermal management challenges. Especially in the field of commercial vehicles, since vehicles need to run for a long time and the road conditions are complex and changeable, the thermal management problem is more prominent.

[0003] Traditional commercial vehicle thermal management systems mainly focus on the heat dissipation of battery packs and motors. By optimizing the heat dissipation structure and using advanced heat dissipation materials, certain results have been achieved. However, for autonomous driving high-computing computing units, since their heat dissipation requirements are significantly different from traditional components, traditional thermal management systems often cannot meet their needs. Therefore, the development of a dedicated thermal management system for autonomous driving high-computing computing units has become an urgent need in the industry.

[0004] At present, some implementation solutions have been proposed and applied to the heat dissipation problem of high-computing power computing units in autonomous driving. The most common one is the air-cooling solution, which uses the wind generated during the vehicle's driving to dissipate the heat of the high-computing power computing units. However, when the high-computing power computing units calculate complex data, their temperature rises rapidly. Relying solely on natural wind for heat dissipation cannot achieve efficient heat dissipation, thereby reducing the computing efficiency of the high-computing power computing units. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a commercial vehicle thermal management system and method, which aims to efficiently dissipate heat from the computing power module in the commercial vehicle, so that the computing power module can operate efficiently, so as to solve the technical problem of the computing power unit lacking an effective heat dissipation solution in the prior art and reducing the computing power.

[0006] A first aspect of the present invention is to provide a commercial vehicle thermal management system, the system comprising:

[0007] An independent liquid cooling and heat dissipation system, comprising a cooling liquid circulation loop, wherein the cooling liquid circulation loop is respectively connected to the computing power module and the first radiator to form a closed loop, a liquid cooling circulation pump connected to the cooling liquid circulation loop drives the cooling liquid to flow in the cooling liquid circulation loop, and the first radiator dissipates heat through air cooling or a preset second radiator;

[0008] A thermal management control system includes a temperature sensor, a control unit and an actuator. The temperature sensor is used to monitor the temperature data of the computing power module in real time and transmit the temperature data to the control unit. The control unit generates a control instruction based on the temperature data and preset heat dissipation strategy data and sends it to the actuator. The actuator adjusts the working status of the liquid cooling circulation pump and the second radiator according to the control instruction.

[0009] According to one aspect of the above technical solution, the coolant circulation loop is composed of a delivery pipe, both ends of which are respectively connected to the inlet end and the outlet end of the first radiator, and the delivery pipe between the inlet end and the outlet end is connected to the computing power module for heat exchange.

[0010] According to one aspect of the above technical solution, the preset heat dissipation strategy data includes first strategy data, second strategy data, third strategy data and fourth strategy data. When the temperature data detected by the temperature sensor increases, the control instructions are generated in accordance with the heat dissipation strategies in the first strategy data, the second strategy data, the third strategy data and the fourth strategy data.

[0011] According to one aspect of the above technical solution, the first strategy in the first strategy data is:

[0012] When the temperature data of the computing power module is 30° C.-50° C., the liquid cooling circulation pump is controlled to operate at a first circulation power, and the second radiator is controlled to be closed.

[0013] According to one aspect of the above technical solution, the second strategy in the second strategy data is:

[0014] When the temperature data of the computing power module is 51° C.-70° C., controlling the liquid cooling circulation pump to operate at a second circulation power, and controlling the second radiator to move at a first rotation power;

[0015] Wherein, the second cycle power is higher than the first cycle power.

[0016] According to one aspect of the above technical solution, the third strategy in the third strategy data is:

[0017] When the temperature data of the computing power module is 71° C.-90° C., controlling the liquid cooling circulation pump to operate at a third circulation power, and controlling the second radiator to operate at a second rotation power;

[0018] Among them, the third circulation power is higher than the second circulation power, and the second rotation power is higher than the first rotation power.

[0019] According to one aspect of the above technical solution, the fourth strategy in the fourth strategy data is:

[0020] When the temperature data of the computing power module is above 91° C., controlling the liquid cooling circulation pump to operate at a fourth circulation power, and controlling the second radiator to operate at a third rotation power;

[0021] Among them, the fourth circulation power is higher than the third circulation power, and the third rotation power is higher than the second rotation power.

[0022] According to one aspect of the above technical solution, the computing power module includes a shell and a computing power unit arranged in the shell, the shell is connected to the coolant circulation loop, and the temperature sensor is arranged inside the shell to monitor the temperature data of the computing power unit.

[0023] According to one aspect of the above technical solution, the computing unit is used to perform condition judgment and strategy calculation for autonomous driving and / or assisted driving.

[0024] A second aspect of the present invention is to provide a commercial vehicle thermal management method, which is applied to the system described in the above technical solution, and the method comprises:

[0025] Acquiring temperature data of the computing power module through the temperature sensor;

[0026] Transmitting the temperature data to the control unit, so that the control unit generates a control instruction according to the temperature data and preset heat dissipation strategy data;

[0027] The control instruction is transmitted to the actuator, so that the actuator adjusts the working states of the liquid cooling circulation pump and the second radiator according to the control instruction.

[0028] Compared with the prior art, the commercial vehicle thermal management system and method shown in the present invention have the following beneficial effects:

[0029] By setting the hardware of an independent liquid cooling and heat dissipation system and the software of a thermal management control system, the independent liquid cooling and heat dissipation system includes a coolant circulation loop, the coolant circulation loop is respectively connected to the computing power module and the first radiator to form a closed loop, the liquid cooling circulation pump connected to the coolant circulation loop drives the coolant to flow in the coolant circulation loop, and the first radiator dissipates heat through air cooling or a preset second radiator; and the thermal management control system includes a temperature sensor, a control unit and an actuator, the temperature sensor is used to monitor the temperature data of the computing power module in real time, and transmit the temperature data to the control unit, the control unit generates a control instruction based on the temperature data and the preset heat dissipation strategy data and sends it to the actuator, and the actuator adjusts the working state of the liquid cooling circulation pump and the second radiator according to the control instruction. Then the method shown in this embodiment can match the corresponding heat dissipation strategy by monitoring the temperature of the computing power module, realize efficient heat dissipation of the computing power module, and ensure that the computing power module can operate efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 This is a schematic diagram of the structure of a thermal management system for a commercial vehicle shown in one embodiment of the present invention;

[0032] Figure 2 It is a flowchart of a thermal management method for a commercial vehicle shown in one embodiment of the present invention;

[0033] Component symbol description:

[0034] The delivery pipeline 10 , the computing power module 20 , the first radiator 30 , the liquid cooling circulation pump 40 , the temperature sensor 50 , the control unit 60 , the actuator 70 , and the second radiator 80 . DETAILED DESCRIPTION

[0035] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Several embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] Embodiment 1

[0038] See also Figure 1 The first embodiment of the present invention provides a thermal management system for a commercial vehicle, the system comprising: an independent liquid cooling system and a thermal management control system.

[0039] In this embodiment, the independent liquid cooling system includes a coolant circulation loop, which is respectively connected to the computing power module 20 and the first radiator 30 to form a closed loop. The liquid cooling circulation pump 40 connected to the coolant circulation loop drives the coolant to flow in the coolant circulation loop. The first radiator 30 dissipates heat through air cooling or a preset second radiator 80.

[0040] Among them, the coolant circulation loop is composed of a delivery pipe 10, both ends of the delivery pipe 10 are respectively connected to the inlet end and the outlet end of the first radiator 30, and the delivery pipe 10 between the inlet end and the outlet end is connected to the computing power module 20 for heat exchange.

[0041] Specifically, the coolant circulation loop is composed of a delivery pipe 10 connected between the inlet and outlet ends of the first radiator 30, and the circulating liquid in the delivery pipe 10 forms a loop by circulating. Since the coolant circulation loop is mainly used to dissipate heat for the computing power module 20, the delivery pipe 10 is also connected to the computing power unit. Through heat exchange with the computing power unit, the heat dissipation of the computing power module 20 is achieved, thereby ensuring that the computing power unit can calculate more data, such as autonomous driving data and\or assisted driving data.

[0042] It should be noted that the first radiator 30 is a cooling water tank and its fan, etc., which are preset in the front bumper of the commercial vehicle and are used to dissipate heat for components such as the engine. In this embodiment, it is connected to the computing power module 20 through the delivery pipeline 10, so that it can dissipate heat for the computing power module 20 at the same time. When the temperature of the first radiator 30 is high, the first radiator 30 can be additionally cooled by the preset second radiator 80, and of course, it can also be cooled by air cooling, which mainly depends on the temperature of the first radiator 30.

[0043] For example, when the weather temperature is high or the computing power module 20 performs complex calculations, the computing power module 20 will generate high temperature. In this embodiment, the coolant circulating in the coolant circulation loop exchanges heat with the computing power module 20, which can take away the heat generated by the computing power module 20, thereby reducing the temperature of the computing power module 20 and ensuring the efficient operation of the computing power module 20. When the coolant temperature rises and the first radiator 30 cannot quickly dissipate heat, the second radiator 80 dissipates heat for the first radiator 30, thereby reducing the temperature of the coolant in the coolant circulation loop, ensuring that the temperature of the coolant is appropriate, and ultimately achieving heat dissipation of the computing power module 20.

[0044] In this embodiment, the thermal management control system includes a temperature sensor 50, a control unit 60 and an actuator 70. The temperature sensor 50 is used to monitor the temperature data of the computing power module 20 in real time and transmit the temperature data to the control unit 60. The control unit 60 generates a control instruction based on the temperature data and preset heat dissipation strategy data and sends it to the actuator 70. The actuator 70 adjusts the working status of the liquid cooling circulation pump 40 and the second radiator 80 according to the control instruction.

[0045] Among them, the preset heat dissipation strategy data includes first strategy data, second strategy data, third strategy data and fourth strategy data. When the temperature data detected by the temperature sensor 50 increases, the control instructions are generated in accordance with the heat dissipation strategies in the first strategy data, the second strategy data, the third strategy data and the fourth strategy data.

[0046] Specifically, the first strategy in the first strategy data is:

[0047] When the temperature data of the computing power module 20 is 30° C.-50° C., the liquid cooling circulation pump 40 is controlled to operate at the first circulation power, and the second radiator 80 is controlled to be closed.

[0048] The second strategy in the second strategy data is:

[0049] When the temperature data of the computing power module 20 is 51° C.-70° C., the liquid cooling circulation pump 40 is controlled to operate at the second circulation power, and the second radiator 80 is controlled to move at the first rotation power;

[0050] Wherein, the second cycle power is higher than the first cycle power.

[0051] The third strategy in the third strategy data is:

[0052] When the temperature data of the computing power module 20 is 71° C.-90° C., the liquid cooling circulation pump 40 is controlled to operate at the third circulation power, and the second radiator 80 is controlled to operate at the second rotation power;

[0053] Among them, the third circulation power is higher than the second circulation power, and the second rotation power is higher than the first rotation power.

[0054] The fourth strategy in the fourth strategy data is:

[0055] When the temperature data of the computing power module 20 is above 91° C., the liquid cooling circulation pump 40 is controlled to operate at the fourth circulation power, and the second radiator 80 is controlled to operate at the third rotation power;

[0056] Among them, the fourth circulation power is higher than the third circulation power, and the third rotation power is higher than the second rotation power.

[0057] In the present embodiment, the independent liquid cooling system is controlled based on a thermal management control system to achieve heat dissipation of the computing power module 20. The thermal management control system includes a temperature sensor 50, a control unit 60 and an actuator 70. The temperature sensor 50 is used to detect the temperature data of the computing power module 20 and quantify the heat generation of the computing power module 20. The control unit 60 is used to receive the temperature data transmitted by the temperature sensor 50, and then select a specific heat dissipation strategy from the preset heat dissipation strategy data. A control instruction is generated based on the specific heat dissipation strategy to the actuator 70, thereby controlling the first radiator 30, the second radiator 80, etc. through the actuator 70.

[0058] Specifically, the preset heat dissipation strategy data includes multiple heat dissipation strategies, including the first strategy, the second strategy, the third strategy and the fourth strategy respectively recorded in the first strategy data, the second strategy data, the third strategy data and the fourth strategy data. The specific selection of the above-mentioned first strategy, the second strategy, the third strategy and the fourth strategy is determined based on the temperature data of the computing power module 20.

[0059] For example, when the temperature data of the computing power module 20 is detected to be 80°C, it means that the computing power module 20 has a high temperature due to external factors and / or internal factors. In order to dissipate the heat of the computing power module 20, the third strategy is adopted to dissipate the heat of the computing power module 20. Specifically, the liquid cooling circulation pump 40 is controlled to operate at the third circulation power, so that the liquid cooling circulation pump 40 moves quickly to allow the coolant to flow quickly, which is conducive to the rapid heat dissipation of the coolant, and the second radiator 80 is controlled to operate at the second rotational power, and the first radiator 30 is cooled by the second radiator 80.

[0060] In this embodiment, the higher the working power of the liquid cooling circulation pump 40, the faster the coolant flows, which is conducive to the rapid cooling of the coolant; similarly, the higher the rotation power of the second radiator 80, the better the heat dissipation effect, thereby being able to quickly reduce the temperature of the first radiator 30.

[0061] Among them, since the second radiator 80 does not participate in the circulating heat dissipation of components such as the engine in the vehicle, the second radiator 80 will not overheat. Using it to dissipate heat for the first radiator 30 can quickly reduce the operating temperature of the first radiator 30.

[0062] In this embodiment, the computing power module 20 includes a shell and a computing power unit disposed in the shell. The shell is connected to the coolant circulation loop, and the temperature sensor 50 is disposed inside the shell to monitor the temperature data of the computing power unit.

[0063] Among them, the computing power unit is used to perform condition judgment and strategy calculation for autonomous driving and / or assisted driving.

[0064] Compared with the prior art, the commercial vehicle thermal management system shown in this embodiment has the following beneficial effects:

[0065] By setting the hardware of an independent liquid cooling and heat dissipation system and the software of a thermal management control system, the independent liquid cooling and heat dissipation system includes a cooling liquid circulation loop, the cooling liquid circulation loop is respectively connected to the computing power module and the first radiator to form a closed loop, the liquid cooling circulation pump connected to the cooling liquid circulation loop drives the cooling liquid to flow in the cooling liquid circulation loop, and the first radiator dissipates heat through air cooling or a preset second radiator; and the thermal management control system includes a temperature sensor, a control unit and an actuator, the temperature sensor is used to monitor the temperature data of the computing power module in real time, and transmit the temperature data to the control unit, the control unit generates a control instruction based on the temperature data and the preset heat dissipation strategy data and sends it to the actuator, and the actuator adjusts the working state of the liquid cooling circulation pump and the second radiator according to the control instruction. Then the system shown in this embodiment can match the corresponding heat dissipation strategy by monitoring the temperature of the computing power module, realize efficient heat dissipation of the computing power module, and ensure that the computing power module can operate efficiently.

[0066] Embodiment 2

[0067] See also Figure 2 The second embodiment of the present invention provides a commercial vehicle thermal management method, which is applied to the system described in the above embodiment. The method includes steps S10 to S30:

[0068] Step S10, obtaining temperature data of the computing power module through the temperature sensor;

[0069] Step S20, transmitting the temperature data to the control unit, so that the control unit generates a control instruction according to the temperature data and preset heat dissipation strategy data;

[0070] Step S30, transmitting the control instruction to the actuator, so that the actuator adjusts the working state of the liquid cooling circulation pump and the second radiator according to the control instruction.

[0071] Compared with the prior art, the commercial vehicle thermal management method shown in this embodiment has the following beneficial effects:

[0072] By setting the hardware of an independent liquid cooling and heat dissipation system and the software of a thermal management control system, the independent liquid cooling and heat dissipation system includes a coolant circulation loop, the coolant circulation loop is respectively connected to the computing power module and the first radiator to form a closed loop, the liquid cooling circulation pump connected to the coolant circulation loop drives the coolant to flow in the coolant circulation loop, and the first radiator dissipates heat through air cooling or a preset second radiator; and the thermal management control system includes a temperature sensor, a control unit and an actuator, the temperature sensor is used to monitor the temperature data of the computing power module in real time, and transmit the temperature data to the control unit, the control unit generates a control instruction based on the temperature data and the preset heat dissipation strategy data and sends it to the actuator, and the actuator adjusts the working state of the liquid cooling circulation pump and the second radiator according to the control instruction. Then the method shown in this embodiment can match the corresponding heat dissipation strategy by monitoring the temperature of the computing power module, realize efficient heat dissipation of the computing power module, and ensure that the computing power module can operate efficiently.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0074] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A commercial vehicle thermal management system, characterized in that: The system comprises: An independent liquid cooling and heat dissipation system, comprising a cooling liquid circulation loop, wherein the cooling liquid circulation loop is respectively connected to the computing power module and the first radiator to form a closed loop, a liquid cooling circulation pump connected to the cooling liquid circulation loop drives the cooling liquid to flow in the cooling liquid circulation loop, and the first radiator dissipates heat through air cooling or a preset second radiator; A thermal management control system includes a temperature sensor, a control unit and an actuator. The temperature sensor is used to monitor the temperature data of the computing power module in real time and transmit the temperature data to the control unit. The control unit generates a control instruction based on the temperature data and preset heat dissipation strategy data and sends it to the actuator. The actuator adjusts the working status of the liquid cooling circulation pump and the second radiator according to the control instruction.

2. The commercial vehicle thermal management system according to claim 1, characterized in that: The coolant circulation loop is composed of a delivery pipe, both ends of which are respectively connected to the inlet end and the outlet end of the first radiator, and the delivery pipe between the inlet end and the outlet end is connected to the computing power module for heat exchange.

3. The commercial vehicle thermal management system according to claim 1, characterized in that: The preset heat dissipation strategy data includes first strategy data, second strategy data, third strategy data and fourth strategy data. When the temperature data detected by the temperature sensor increases, the control instruction is generated in accordance with the heat dissipation strategies in the first strategy data, the second strategy data, the third strategy data and the fourth strategy data.

4. The commercial vehicle thermal management system according to claim 3, characterized in that: The first strategy in the first strategy data is: When the temperature data of the computing power module is 30° C.-50° C., the liquid cooling circulation pump is controlled to operate at a first circulation power, and the second radiator is controlled to be closed.

5. The commercial vehicle thermal management system according to claim 4, characterized in that: The second strategy in the second strategy data is: When the temperature data of the computing power module is 51° C.-70° C., controlling the liquid cooling circulation pump to operate at a second circulation power, and controlling the second radiator to move at a first rotation power; Wherein, the second cycle power is higher than the first cycle power.

6. The commercial vehicle thermal management system according to claim 5, characterized in that: The third strategy in the third strategy data is: When the temperature data of the computing power module is 71° C.-90° C., controlling the liquid cooling circulation pump to operate at a third circulation power, and controlling the second radiator to operate at a second rotation power; Among them, the third circulation power is higher than the second circulation power, and the second rotation power is higher than the first rotation power.

7. The commercial vehicle thermal management system according to claim 6, characterized in that: The fourth strategy in the fourth strategy data is: When the temperature data of the computing power module is above 91° C., controlling the liquid cooling circulation pump to operate at a fourth circulation power, and controlling the second radiator to operate at a third rotation power; Among them, the fourth circulation power is higher than the third circulation power, and the third rotation power is higher than the second rotation power.

8. The commercial vehicle thermal management system according to any one of claims 1 to 7, characterized in that: The computing power module includes a shell and a computing power unit arranged in the shell. The shell is connected to the cooling liquid circulation loop. The temperature sensor is arranged inside the shell to monitor the temperature data of the computing power unit.

9. The commercial vehicle thermal management system according to claim 8, characterized in that: The computing unit is used to perform condition judgment and strategy calculation for autonomous driving and / or assisted driving.

10. A commercial vehicle thermal management method, characterized in that: Applied to the system according to any one of claims 1 to 9, the method comprises: Acquiring temperature data of the computing power module through the temperature sensor; Transmitting the temperature data to the control unit, so that the control unit generates a control instruction according to the temperature data and preset heat dissipation strategy data; The control instruction is transmitted to the actuator, so that the actuator adjusts the working states of the liquid cooling circulation pump and the second radiator according to the control instruction.

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