CN112512277A - Water-cooling heat dissipation device and system for vehicle domain controller and use method of water-cooling heat dissipation system - Google Patents
Water-cooling heat dissipation device and system for vehicle domain controller and use method of water-cooling heat dissipation system Download PDFInfo
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- CN112512277A CN112512277A CN202011455132.5A CN202011455132A CN112512277A CN 112512277 A CN112512277 A CN 112512277A CN 202011455132 A CN202011455132 A CN 202011455132A CN 112512277 A CN112512277 A CN 112512277A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20872—Liquid coolant without phase change
Abstract
The embodiment of the application provides a water-cooling heat dissipation device and system for a vehicle domain controller and a using method of the water-cooling heat dissipation device, wherein the water-cooling heat dissipation device for the vehicle domain controller comprises an inlet switching device, an outlet switching device and a water-cooling heat sink, and the inlet switching device is connected to the domain controller through a water inlet and is used for controlling the inflow direction of cooling liquid before passing through the water inlet; the outlet switching device is connected to the domain controller through a water outlet and is used for controlling the outflow direction of the cooling liquid after passing through the water outlet; one end of the water-cooling radiator is connected with the switching device to cool the cooling liquid flowing out of the domain controller, and the other end of the water-cooling radiator is connected with the inlet switching device to convey the cooled cooling liquid to the domain controller. Through the processing scheme, the heat dissipation performance of the vehicle domain controller is improved, and the reliable and stable operation of the domain controller is guaranteed.
Description
Technical Field
The application relates to the technical field of vehicle domain controllers, in particular to a water-cooling heat dissipation device and system of a vehicle domain controller and a using method of the water-cooling heat dissipation device and system.
Background
The development of new energy automobiles is a necessary way for China to move from the automobile kingdom to the automobile forcing country, and is a strategic measure for coping with climate change and promoting green development. China's automobiles will insist on developing in the direction of electromotion, networking and intellectualization, and the electrical architecture of automobiles will gradually evolve from a distributed ECU architecture to a central domain controller architecture.
The automobile domain controller divides each part of the electronic functions of the automobile into a plurality of domains, such as a power transmission domain, an automobile body electronic domain, an auxiliary driving domain and the like, and then adopts a core processor to control most of the functions originally belonging to each ECU in the domain, so as to replace the traditional distributed architecture. The higher the computing power of the domain controller is, the higher the energy consumption is, and the higher the heat dissipation requirement of the main computing chip is put forward.
At present, most of domain controllers installed after a domain controller is generally cooled by a fan or passively cooled, the reliability of cooling by the fan is not high, and the fan is easy to damage; dust is easy to accumulate and is not easy to clean; but also causes the domain controller to have difficulty in satisfying a high protection level (waterproof and dustproof level).
The mass-production vehicle type front loading area controller is mostly water-cooled and shares a set of cooling system with the vehicle, such as Tesla, Xiaopeng automobiles and the like; however, for most of the automated driving test vehicles, especially most of the automated driving technology companies, there is a certain risk that the cooling pipeline of the domain controller is connected to the vehicle cooling system, which may affect the heat dissipation effect of other devices of the vehicle.
Disclosure of Invention
In view of the above, embodiments of the present application provide a water-cooled heat dissipation apparatus and system for a vehicle domain controller, and a method for using the same, which at least partially solve the problems in the prior art. In a first aspect, a water-cooling heat dissipation device for a vehicle domain controller is provided, which comprises an inlet switching device, an outlet switching device and a water-cooling heat sink, wherein the inlet switching device, the outlet switching device and the water-cooling heat sink are arranged in the vehicle domain controller
The inlet switching device is used for controlling the inflow direction of the cooling liquid before passing through the water inlet access domain controller;
the outlet switching device is connected to the domain controller through a water outlet and is used for controlling the outflow direction of the cooling liquid after passing through the water outlet;
one end of the water-cooling radiator is connected with the outlet switching device so as to cool the cooling liquid flowing out of the domain controller, and the other end of the water-cooling radiator is connected with the inlet switching device so as to convey the cooled cooling liquid to the domain controller.
According to a specific implementation manner of the embodiment of the application, the domain controller, the water-cooled radiator, the inlet switching device and the outlet switching device are connected through pipelines.
According to a specific implementation manner of the embodiment of the application, the water-cooled heat dissipation device for the vehicle domain controller further comprises a thermometer, wherein the thermometer is arranged between the inlet switching device and the water inlet and is used for measuring the temperature of the cooling liquid flowing into the domain controller.
According to a specific implementation manner of the embodiment of the application, the water-cooling heat dissipation device of the vehicle domain controller further comprises a pressure gauge, and the pressure gauge is arranged between the inlet switching device and the water inlet and used for measuring the pressure of a pipeline through which the cooling liquid flowing into the domain controller flows.
According to a specific implementation of the embodiments of the present disclosure, the cooling fluid is one or more of water, cooling oil, and a glycol-type cooling fluid.
According to a particular implementation of the embodiment of the application, the switching device is configured as a three-position, three-way solenoid valve.
In a second aspect, embodiments of the present application provide a vehicle domain controller system, comprising: a domain controller, a water-cooling heat sink of a vehicle domain controller, and a cooling system of a vehicle itself, wherein,
the water-cooling heat dissipation device of the vehicle domain controller comprises an inlet switching device, an outlet switching device and a water-cooling heat radiator,
the inlet switching device is used for controlling the inflow direction of the cooling liquid before passing through the water inlet access domain controller;
the outlet switching device is connected to the domain controller through a water outlet and is used for controlling the outflow direction of the cooling liquid after passing through the water outlet;
one end of the water-cooling radiator is connected with the outlet switching device to cool the cooling liquid flowing out of the domain controller, and the other end of the water-cooling radiator is connected with the inlet switching device to convey the cooled cooling liquid to the domain controller;
one end of the vehicle cooling system is connected with the water outlet of the domain controller through the outlet switching device to cool the cooling liquid flowing out of the domain controller, and the other end of the vehicle cooling system is connected with the water inlet of the domain controller through the inlet switching device to convey the cooled cooling liquid to the domain controller.
In a third aspect, embodiments of the present application provide a method for using a water-cooled heat dissipation system of a vehicle domain controller, where the domain controller detects the temperature and flow rate of coolant at a water inlet in real time, detects whether the temperature of the coolant is greater than or equal to T1,
if not, detecting whether the pressure of the cooling pipeline is less than or equal to P1;
if so, increasing the heat dissipation requirement of the cooling system of the vehicle; after a plurality of minutes, if the cooling temperature is greater than or equal to T2, and T2 is greater than T1, controlling the inlet switching device and the outlet switching device, and switching the cooling pipeline of the domain controller to the water-cooling heat dissipation device for heat dissipation treatment; if the cooling temperature is lower than T2, detecting whether the temperature of the cooling liquid is higher than or equal to T1, if so, performing the same heat dissipation process, and if not, detecting whether the pressure of the cooling pipeline is lower than or equal to P1;
if the pressure of the cooling pipeline is less than or equal to P1, increasing the heat dissipation requirement of the cooling system of the vehicle; after a plurality of minutes, if the pressure of the cooling pipeline is less than or equal to P2, and at the moment, P2 is less than P1, controlling the inlet switching device and the outlet switching device, and switching the cooling pipeline of the domain controller to a water-cooling heat dissipation device for heat dissipation treatment; if the cooling pipeline pressure is greater than P2, continuing to detect whether the cooling pipeline pressure is less than or equal to P1;
and if the pressure of the cooling pipeline is greater than P1, continuing to use the vehicle cooling system for cooling and radiating.
The heat dissipation device provided by the embodiment of the application comprises an inlet switching device, an outlet switching device and a water-cooling heat sink, wherein the inlet switching device is used for controlling the inflow direction of cooling liquid before passing through a water inlet access domain controller; the outlet switching device is connected to the domain controller through a water outlet and is used for controlling the outflow direction of the cooling liquid after passing through the water outlet; one end of the water-cooling radiator is connected with the outlet switching device so as to cool the cooling liquid flowing out of the domain controller, and the other end of the water-cooling radiator is connected with the inlet switching device so as to convey the cooled cooling liquid to the domain controller. Through the processing scheme, the heat dissipation performance of the vehicle domain controller is improved, and the reliable and stable operation of the domain controller is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of heat dissipation through a vehicle cooling system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural view of a heat dissipation structure using a water-cooling heat dissipation device according to an embodiment of the present disclosure;
fig. 3 is a flowchart of a method for using a water-cooling heat dissipation system of a vehicle domain controller according to an embodiment of the present application.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The cooling liquid used in the water-cooling heat dissipation device of the vehicle domain controller provided in the embodiment of the present application may be, but is not limited to, one or more of water, cooling oil, and glycol-type cooling liquid. In the following description, a water-cooled heat sink of a vehicle area controller is taken as an example, but it should be understood that other heat sinks using suitable cooling fluids may be used.
In the embodiment of the application, the external interface of the domain controller comprises a water inlet and a water outlet, for the domain controller, cooling liquid flows in from the water inlet, enters the domain controller, passes through a water channel in the domain controller and flows out from the water outlet, so that heat generated by a computing chip of the domain controller is taken away, and the purpose of cooling the domain controller is achieved.
In the embodiment of the application, an inlet switching device is connected to the water inlet of the domain controller and used for controlling the inflow direction of the cooling liquid, and an outlet switching device is connected to the water outlet of the domain controller and used for controlling the outflow direction of the cooling liquid; the first inflow interface of the inlet switching device is connected with one end of the water-cooled radiator, the first outflow interface of the outlet switching device is connected with the other end of the water-cooled radiator, and the water-cooled radiator cools the cooling liquid flowing out of the domain controller from the water outlet, and conveys the cooling liquid to the domain controller from the water inlet to cool the domain controller.
According to a specific implementation manner of the embodiment of the application, the domain controller, the water-cooled radiator, the inlet switching device and the outlet switching device are connected through pipelines, and the domain controller, the inlet switching device, the water-cooled radiator and the outlet switching device form a cooling loop.
According to a concrete implementation mode of the embodiment of the application, the vehicle domain controller water-cooling heat dissipation device further comprises a thermometer, the thermometer is arranged between the inlet switching device and the water inlet and used for measuring the temperature of the cooling liquid flowing into the domain controller, and the domain controller judges and identifies the fault of the cooling system of the vehicle by detecting the temperature of the cooling liquid at the water inlet when the temperature of the cooling liquid at the water inlet is higher than a certain value.
According to a concrete implementation mode of the embodiment of the application, the vehicle domain controller water-cooling heat dissipation device further comprises a flow meter, the flow meter is arranged between the inlet switching device and the water inlet and used for measuring the flow of the cooling liquid flowing into the domain controller, the domain controller judges and identifies the fault of a cooling system of the vehicle by detecting the flow of the cooling liquid at the water inlet when the flow of the cooling liquid at the water inlet is lower than a certain value.
According to a specific implementation of the embodiments of the present disclosure, the cooling fluid is one or more of water, cooling oil, and a glycol-type cooling fluid.
According to a particular implementation of the embodiment of the application, the switching device is configured as a three-position, three-way solenoid valve.
In addition, an embodiment of the present application further provides a vehicle domain controller system, where the vehicle domain controller system includes: the water-cooling heat dissipation device of the vehicle domain controller comprises an inlet switching device, an outlet switching device and a water-cooling heat radiator, wherein the inlet switching device is connected to the domain controller through a water inlet and is used for controlling the inflow direction of cooling liquid before passing through the water inlet; the outlet switching device is connected to the domain controller through a water outlet and is used for controlling the outflow direction of the cooling liquid after passing through the water outlet; one end of the water-cooled radiator is connected with the first outflow interface of the outlet switching device, and the other end of the water-cooled radiator is connected with the first inflow interface of the inlet switching device; one end of the vehicle cooling system is connected to the water inlet of the domain controller through the second inflow interface of the inlet switching device, and the other end of the vehicle cooling system is connected to the water outlet of the domain controller through the second outflow interface of the outlet switching device.
Next, a vehicle domain controller water-cooling heat dissipation device and a vehicle domain controller system according to an embodiment of the present application will be described in detail with reference to the accompanying drawings.
In this application embodiment, when vehicle and domain controller normally worked, adopt vehicle self cooling system to give domain controller heat dissipation cooling, as shown in fig. 1, coolant liquid in vehicle self cooling system passes through entry auto-change over device's second flows in the interface and gets into the water inlet of domain controller, through the inside water course of domain controller to the controller calculation chip cooling again, at this moment, coolant liquid takes away its self temperature rising with the heat of domain controller, and coolant liquid passes through delivery port and delivery port auto-change over device's second outflow interface and gets into vehicle self cooling system afterwards, and cool off.
In this embodiment of the present application, after a failure occurs in a vehicle cooling system, a water-cooled radiator is used to perform heat dissipation and cooling on a domain controller, as shown in fig. 2, the domain controller detects a temperature and a flow rate of a coolant at a water inlet, when the temperature of the coolant at the water inlet is higher than a certain value or the flow rate is lower than a certain value, after the failure of the vehicle cooling system is determined and recognized, an inlet switching device and an outlet switching device are controlled to disconnect the vehicle cooling system, a first inflow interface of the inlet switching device is connected to one end of the water-cooled radiator, and a first outflow interface of the outlet switching device is connected to the other end of the water-cooled radiator, so that a cooling pipeline of the domain controller can be communicated with the water-cooled radiator, and the domain controller is cooled by.
The embodiment of the application also provides a using method of the water-cooling heat dissipation system of the vehicle domain controller, the specific using method flow is shown in fig. 3, the domain controller is electrified before mass production vehicle models are installed, the domain controller detects the temperature and the flow of the cooling liquid at the water inlet in real time, detects whether the temperature of the cooling liquid is more than or equal to T1,
if not, detecting whether the pressure of the cooling pipeline is less than or equal to P1;
if so, increasing the heat dissipation requirement of the cooling system of the vehicle, and requesting to increase the rotating speed of a heat dissipation fan to cool and dissipate heat of the domain controller; after a plurality of minutes, if the cooling temperature is greater than or equal to T2, and T2 is greater than T1, controlling the inlet switching device and the outlet switching device, and switching the cooling pipeline of the domain controller to the water-cooling heat dissipation device for heat dissipation treatment; if the cooling temperature is lower than T2, detecting whether the temperature of the cooling liquid is higher than or equal to T1, if so, performing the same heat dissipation process, and if not, detecting whether the pressure of the cooling pipeline is lower than or equal to P1;
if the pressure of the cooling pipeline is less than or equal to P1, increasing the heat dissipation requirement of the cooling system of the vehicle, and requesting to increase the power of a heat dissipation water pump to cool and dissipate heat of the domain controller; after a plurality of minutes, if the pressure of the cooling pipeline is less than or equal to P2, and at the moment, P2 is less than P1, controlling the inlet switching device and the outlet switching device, and switching the cooling pipeline of the domain controller to a water-cooling heat dissipation device for heat dissipation treatment; if the cooling pipeline pressure is greater than P2, continuing to detect whether the cooling pipeline pressure is less than or equal to P1;
and if the pressure of the cooling pipeline is greater than P1, continuing to use the vehicle cooling system for cooling and radiating.
The embodiment provided by the application aims at the problem that the performance of a mass-production vehicle-type front-mounted domain controller is reduced when a vehicle refrigeration system fails, the invention provides the water-cooling heat dissipation device of the vehicle domain controller and the vehicle domain controller system, so that the domain controller can automatically switch a cooling system to the water-cooling heat dissipation device after the vehicle cooling system fails, the heat dissipation performance of the vehicle domain controller is improved, and the reliable and stable operation of the domain controller is ensured.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. The water-cooling heat dissipation device for the vehicle domain controller is characterized by comprising an inlet switching device, an outlet switching device and a water-cooling heat radiator, wherein the inlet switching device, the outlet switching device and the water-cooling heat radiator are arranged on the same side of the inlet switching device
The inlet switching device is used for controlling the inflow direction of the cooling liquid before passing through the water inlet access domain controller;
the outlet switching device is connected to the domain controller through a water outlet and is used for controlling the outflow direction of the cooling liquid after passing through the water outlet;
one end of the water-cooling radiator is connected with the outlet switching device so as to cool the cooling liquid flowing out of the domain controller, and the other end of the water-cooling radiator is connected with the inlet switching device so as to convey the cooled cooling liquid to the domain controller.
2. The water-cooled heat sink for vehicle domain controller according to claim 1, wherein said domain controller, water-cooled heat sink, inlet switching means and outlet switching means are connected by pipes.
3. The vehicular domain controller hydronic heat sink according to claim 1, further comprising a thermometer provided between the inlet switching device and the water inlet for measuring a temperature of the coolant flowing into the domain controller.
4. The water-cooled heat sink device for vehicle domain controller according to claim 1, further comprising a pressure gauge disposed between the inlet switching device and the water inlet for measuring a pressure of a pipe through which the coolant flowing into the domain controller flows.
5. The water-cooled heat sink for vehicle domain controllers as claimed in any one of claims 1 to 4, wherein said coolant is one or more of water, cooling oil and glycol type coolant.
6. The water-cooled heat sink for vehicle domain controller according to claim 1, wherein said switching means is configured as a three-position three-way solenoid valve.
7. A vehicle domain controller water-cooling heat dissipation system, comprising: a domain controller, a water-cooling heat sink of a vehicle domain controller, and a cooling system of a vehicle itself, wherein,
the water-cooling heat sink for vehicle area controller includes inlet switching unit, outlet switching unit and water-cooling heat sink,
the inlet switching device is used for controlling the inflow direction of the cooling liquid before passing through the water inlet access domain controller;
the outlet switching device is connected to the domain controller through a water outlet and is used for controlling the outflow direction of the cooling liquid after passing through the water outlet;
one end of the water-cooling radiator is connected with the outlet switching device to cool the cooling liquid flowing out of the domain controller, and the other end of the water-cooling radiator is connected with the inlet switching device to convey the cooled cooling liquid to the domain controller;
one end of the vehicle cooling system is connected with the water outlet of the domain controller through the outlet switching device to cool the cooling liquid flowing out of the domain controller, and the other end of the vehicle cooling system is connected with the water inlet of the domain controller through the inlet switching device to convey the cooled cooling liquid to the domain controller.
8. A use method of the water-cooled heat dissipation system of the vehicle domain controller according to claim 6, wherein the domain controller detects the temperature and flow rate of the cooling liquid at the water inlet in real time, detects whether the temperature of the cooling liquid is greater than or equal to T1,
if not, detecting whether the pressure of the cooling pipeline is less than or equal to P1;
if so, increasing the heat dissipation requirement of the cooling system of the vehicle; after a plurality of minutes, if the cooling temperature is greater than or equal to T2, and T2 is greater than T1, controlling the inlet switching device and the outlet switching device, and switching the cooling pipeline of the domain controller to the water-cooling heat dissipation device for heat dissipation treatment; if the cooling temperature is lower than T2, detecting whether the temperature of the cooling liquid is higher than or equal to T1, if so, performing the same heat dissipation process, and if not, detecting whether the pressure of the cooling pipeline is lower than or equal to P1;
if the pressure of the cooling pipeline is less than or equal to P1, increasing the heat dissipation requirement of the cooling system of the vehicle; after a plurality of minutes, if the pressure of the cooling pipeline is less than or equal to P2, and at the moment, P2 is less than P1, controlling the inlet switching device and the outlet switching device, and switching the cooling pipeline of the domain controller to a water-cooling heat dissipation device for heat dissipation treatment; if the cooling pipeline pressure is greater than P2, continuing to detect whether the cooling pipeline pressure is less than or equal to P1;
and if the pressure of the cooling pipeline is greater than P1, continuing to use the vehicle cooling system for cooling and radiating.
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| CN114423226A (en) * | 2021-12-22 | 2022-04-29 | 奇瑞汽车股份有限公司 | Cooling system and vehicle |
| CN115226371A (en) * | 2022-06-09 | 2022-10-21 | 广东省智能网联汽车创新中心有限公司 | Cooling method and system of domain controller |
| CN115434895A (en) * | 2022-09-01 | 2022-12-06 | 中车株洲电力机车有限公司 | Oil temperature control system and method for locomotive and compressor |
| WO2023028879A1 (en) * | 2021-08-31 | 2023-03-09 | 华为技术有限公司 | Device cooling system and thermal management system |
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