EP-4742847-A2 - LIQUID COOLING SYSTEM, CONTROL METHOD AND CONTROL APPARATUS APPLIED IN LIQUID COOLING SYSTEM, AND VEHICLE

EP4742847A2EP 4742847 A2EP4742847 A2EP 4742847A2EP-4742847-A2

Abstract

This application provides a liquid cooling system, a control method applied to the liquid cooling system, and a vehicle, and relates to the field of artificial intelligence, autonomous driving, or intelligent driving, and may be applied to an intelligent vehicle, a networked vehicle, and an autonomous driving vehicle. The liquid cooling system includes a pump, a heat exchanger, a vehicle-mounted control module, and a plurality of vehicle-mounted components, where the plurality of vehicle-mounted components include an intelligent driving control component. The pump is configured to deliver liquid to the plurality of vehicle-mounted components, to dissipate heat for the plurality of vehicle-mounted components. The vehicle-mounted control module is configured to determine a rotation speed of the pump based on pump rotation speed requirements of the plurality of vehicle-mounted components. The liquid cooling system provided in this application can meet both a heat dissipation requirement of the intelligent driving control component and an energy saving requirement of an entire vehicle.

Inventors

JIA, Hui
XU, Xiaobing

Assignees

Shenzhen Yinwang Intelligent Technologies Co., Ltd.

Dates

Publication Date: 20260513
Application Date: 20210621

Claims (15)

A liquid cooling system, wherein the liquid cooling system comprises a pump, a heat exchanger, a vehicle-mounted control module, and a plurality of vehicle-mounted components, wherein the plurality of vehicle-mounted components comprise an intelligent driving control component; the pump is configured to deliver liquid to the plurality of vehicle-mounted components, to dissipate heat for the plurality of vehicle-mounted components; the vehicle-mounted control module is configured to determine a rotation speed of the pump based on heat dissipation requirements of the plurality of vehicle-mounted components, wherein the heat dissipation requirements comprise pump rotation speed requirements or flow requirements; the intelligent driving control component is configured to provide a pump rotation speed requirement of the intelligent driving control component, or a flow requirement of the intelligent driving control component.
The liquid cooling system according to claim 1, wherein the vehicle-mounted control module is further configured to determine the rotation speed of the pump based on a largest value of the heat dissipation requirements of the plurality of vehicle-mounted components.
The liquid cooling system according to claim 1 or 2, wherein a pump rotation speed requirement of each of the plurality of vehicle-mounted components is determined based on an inlet water temperature and a flow requirement of each vehicle-mounted component.
The liquid cooling system according to claim 3, wherein the plurality of vehicle-mounted components are respectively connected to a plurality of pipelines, the plurality of pipelines are connected in parallel, the plurality of pipelines are respectively connected to the pump and the heat exchanger to form a circulation loop, and the vehicle-mounted control module is separately connected to the pump and the plurality of vehicle-mounted components through lines.
The liquid cooling system according to claim 3 or 4, wherein the liquid cooling system further comprises a temperature sensor, the temperature sensor is located at a liquid cooling inlet of the plurality of vehicle-mounted components, and the temperature sensor is configured to measure the inlet water temperature.
The liquid cooling system according to any one of claims 1 to 5, wherein the pump rotation speed requirement of the intelligent driving control component or the flow requirement of the intelligent driving control component is determined based on temperature differences at a plurality of locations on the intelligent driving control component, or based on temperature differences and heating rates at a plurality of locations on the intelligent driving control component and the temperature difference is a difference between a temperature specification and an actual temperature.
The liquid cooling system according to any one of claims 1 to 6, wherein the pump rotation speed requirement of the intelligent driving control component or the flow requirement of the intelligent driving control component is determined based on the inlet water temperature, or based on a temperature range in which the inlet water temperature falls.
The liquid cooling system according to any one of claims 1 to 7, wherein the pump rotation speed requirement of the intelligent driving control component or the flow requirement of the intelligent driving control component is determined based on a junction temperature of a core chip on the intelligent driving control component, or based on a temperature range in which the junction temperature of the core chip on the intelligent driving control component falls.
A control method applied to a liquid cooling system, wherein the liquid cooling system comprises a pump, a heat exchanger, and a plurality of vehicle-mounted components, the plurality of vehicle-mounted components comprise an intelligent driving control component, and the pump is configured to deliver liquid to the plurality of vehicle-mounted components, to dissipate heat for the plurality of vehicle-mounted components; and the control method comprises: obtaining heat dissipation requirements of the plurality of vehicle-mounted components; determining a rotation speed of the pump based on the heat dissipation requirements of the plurality of vehicle-mounted components, wherein the heat dissipation requirements comprise pump rotation speed requirements or flow requirements; and wherein, a pump rotation speed requirement of the intelligent driving control component, or a flow requirement of the intelligent driving control component is provided by the intelligent driving control component.
The control method according to claim 9, wherein the determining a rotation speed of the pump based on the heat dissipation requirements of the plurality of vehicle-mounted components comprises: determining the rotation speed of the pump based on a largest value of the heat dissipation requirements of the plurality of vehicle-mounted components.
The control method according to claim 9 or 10, wherein the control method further comprises: determining the pump rotation speed requirements of the plurality of vehicle-mounted components based on an inlet water temperature and a flow requirement of each of the plurality of vehicle-mounted components.
The control method according to any one of claims 9 to 11, wherein the control method further comprises: determining the pump rotation speed requirement of the intelligent driving control component or the flow requirement of the intelligent driving control component based on temperature differences at a plurality of locations on the intelligent driving control component or based on temperature differences and heating rates at a plurality of locations on the intelligent driving control component, wherein the temperature difference is a difference between a temperature specification and an actual temperature.
The control method according to any one of claims 9 to 12, wherein the control method further comprises: determining the pump rotation speed requirement of the intelligent driving control component or the flow requirement of the intelligent driving control component based on the inlet water temperature, or based on the temperature range in which the inlet water temperature falls.
The control method according to any one of claims 9 to 13, wherein the control method further comprises: determining the pump rotation speed requirement of the intelligent driving control component or the flow requirement of the intelligent driving control component based on a junction temperature of a core chip on the intelligent driving control component, or a temperature range in which the junction temperature of the core chip on the intelligent driving control component falls.
A vehicle, comprising the system according to any one of claims 1 to 8.

Description

This application claims priority to Chinese Patent Application No. 202011376695.5, filed on November 30, 2020 and entitled "LIQUID COOLING SYSTEM, CONTROL METHOD AND CONTROL APPARATUS APPLIED IN LIQUID COOLING SYSTEM, AND VEHICLE", which is incorporated herein by reference in its entirety. TECHNICAL FIELD This application relates to the field of heat dissipation, and more specifically, to a liquid cooling system, a control method and control apparatus applied to the liquid cooling system, and a vehicle. BACKGROUND Intelligent driving is a mainstream application in the field of artificial intelligence (artificial intelligence, Al). An intelligent driving technology relies on collaborative cooperation between computer vision, a radar, a monitoring apparatus, a global positioning system, and the like, so that a motor vehicle can implement intelligent driving without manual operations. One of key components in intelligent driving vehicles is an intelligent driving control component (for example, an advanced driving assistance system (advanced driving assistance system, ADAS) or a mobile data center (mobile data center, MDC)). The intelligent driving control component generates a large amount of heat in a working process thereof. To ensure that working performance is not affected, heat from the intelligent driving control component needs to be dissipated. Common heat dissipation modes include air cooling heat dissipation and liquid cooling heat dissipation. As a computing power requirement of the intelligent driving control component increases, a power of the intelligent driving control component becomes higher, and a heat dissipation problem of the intelligent driving control component cannot be further resolved through air cooling. Therefore, liquid cooling is required for heat dissipation. Because there is a liquid cooling system in the vehicle, how to use the existing liquid cooling system to dissipate heat for the intelligent driving control component and meet an energy saving requirement of the entire vehicle becomes a new problem. SUMMARY This application provides a liquid cooling system, a control method and control apparatus applied to the liquid cooling system, and a vehicle. The liquid cooling system can meet both a heat dissipation requirement of an intelligent driving control component and an energy saving requirement of an entire vehicle. According to a first aspect, a liquid cooling system is provided, where the liquid cooling system includes a pump, a heat exchanger, a vehicle-mounted control module, and a plurality of vehicle-mounted components, where the plurality of vehicle-mounted components include an intelligent driving control component; the pump is configured to deliver liquid to the plurality of vehicle-mounted components, to dissipate heat for the plurality of vehicle-mounted components; and the vehicle-mounted control module is configured to determine a rotation speed of the pump based on pump rotation speed requirements of the plurality of vehicle-mounted components. The liquid cooling system in this embodiment of this application includes the pump, the heat exchanger, the vehicle-mounted control module, and the plurality of vehicle-mounted components. The plurality of vehicle-mounted components include the intelligent driving control component. The pump is configured to deliver liquid to the plurality of vehicle-mounted components, to dissipate heat for the plurality of vehicle-mounted components. Therefore, the liquid cooling system can implement heat dissipation for the intelligent driving control component. In addition, the vehicle-mounted control module may determine the rotation speed of the pump based on the pump rotation speed requirements of the plurality of vehicle-mounted components. In this way, the intelligent driving control component may participate in rotation speed control of the pump in the liquid cooling system, to meet both a heat dissipation requirement of the intelligent driving control component and an energy saving requirement of the entire vehicle. With reference to the first aspect, in some implementations of the first aspect, the vehicle-mounted control module is further configured to determine the rotation speed of the pump based on a largest value of the pump rotation speed requirements of the plurality of vehicle-mounted components. In this embodiment of this application, the rotation speed of the pump in the liquid cooling system may be determined based on the largest value of the pump rotation speed requirements of the plurality of vehicle-mounted components, so that the determined rotation speed of the pump can simultaneously meet heat dissipation requirements of the plurality of vehicle-mounted components. With reference to the first aspect, in some implementations of the first aspect, a pump rotation speed requirement of each of the plurality of vehicle-mounted components is determined based on an inlet water temperature and a flow requirement of eac