CN-117027996-B - Control method and device for engine oil cooler, vehicle, medium and program product

CN117027996BCN 117027996 BCN117027996 BCN 117027996BCN-117027996-B

Abstract

The invention discloses a control method, a device, a vehicle, a medium and a program product of an oil cooler. And judging the fault state of the engine oil cooler by combining the temperature information, the humidity information and the pressure information. And controlling the state of the corresponding electromagnetic valve and the running state of the engine according to the fault state of the engine oil cooler. The technical scheme provided by the invention can solve the problems that the prior art cannot judge the failure of the engine oil cooler in real time and react to the failure, realizes the real-time and accurate judgment of the failure state of the engine oil cooler, adopts corresponding control means to remove the failure, is beneficial to guaranteeing the lubrication requirement of the engine and improves the safety of vehicles.

Inventors

ZHANG JIE
SONG BAIDA
Sun Jialv
WEI HONGLIANG
ZHAO YANWEI
LI YUEXING
Ma Huaiyang
Cui shizhu
SUN BO
FENG HAITAO

Assignees

中国第一汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20230907

Claims (8)

1. A control method of an engine oil cooler, characterized by comprising: Acquiring temperature information, humidity information and pressure information of oil inlet and oil discharge of the oil cooler; judging the fault state of the engine oil cooler by combining the temperature information, the humidity information and the pressure information; controlling the state of a corresponding electromagnetic valve and the running state of an engine according to the fault state of the oil cooler; the method for judging the fault state of the engine oil cooler by combining the temperature information, the humidity information and the pressure information comprises the following steps of: the first judging branch comprises a step of sequentially judging whether the temperature information, the humidity information and the pressure information exceed the limit or not; a second judging branch circuit, which comprises judging whether the humidity information, the temperature information and the pressure information exceed the limit or not in sequence; a third judging branch circuit, which comprises judging whether the pressure information exceeds the limit; before the fault state of the oil cooler is judged by combining the temperature information, the humidity information and the pressure information, the method further comprises the following steps: Setting a first temperature threshold t1, a second temperature threshold t2, a third temperature threshold t3, a first humidity threshold PH1, a second humidity threshold PH2, a third humidity threshold PH3, a first pressure threshold P1 and a second pressure threshold P2, wherein t2< t1< t3, PH2< PH1< PH3, and P1< P2; Acquiring the ambient temperature, the ambient humidity and the ambient pressure; The first judging branch circuit includes: If the temperature information is greater than the first temperature threshold t1, the ambient temperature is less than the first temperature threshold t1, the humidity information is less than the first humidity threshold PH1, the ambient humidity is less than the first humidity threshold PH1, the pressure information is greater than the first pressure threshold P1, and the ambient pressure is less than the first pressure threshold P1, a first electromagnetic valve is opened, wherein the first electromagnetic valve is used for controlling cooling flow; If the first electromagnetic valve is opened and the temperature information is smaller than the second temperature threshold t2, closing the first electromagnetic valve; If the temperature information is greater than the first temperature threshold t1, the ambient temperature is less than the first temperature threshold t1, the humidity information is less than the first humidity threshold PH1, the ambient humidity is less than the first humidity threshold PH1, the pressure information is less than the first pressure threshold P1, and the ambient pressure is greater than the first pressure threshold P1, then engine normal start operation is performed; if the temperature information is greater than the first temperature threshold t1, the ambient temperature is less than the first temperature threshold t1, the humidity information is less than the first humidity threshold PH1, and the ambient humidity is greater than the first humidity threshold PH1, the engine is started to operate normally; If the temperature information is greater than the first temperature threshold t1, the ambient temperature is less than the first temperature threshold t1, the humidity information is greater than the first humidity threshold PH1, the ambient humidity is greater than the first humidity threshold PH1, and the humidity information is less than the ambient humidity, a second electromagnetic valve is opened, a step of judging whether the humidity information is less than the first humidity threshold PH1 is returned to be executed, and a fault operation mode is executed, wherein the second electromagnetic valve is used for controlling the water discharge; If the temperature information is greater than the first temperature threshold t1, the ambient temperature is less than the first temperature threshold t1, the humidity information is greater than the first humidity threshold PH1, and the ambient humidity is less than the first humidity threshold PH1, the engine is started to operate normally; If the temperature information is smaller than the first temperature threshold t1 and the temperature sensor has a numerical value, executing the second judging branch; if the temperature information is greater than the first temperature threshold t1 and the ambient temperature is greater than the first temperature threshold t1, the engine is started to operate normally; the second judging branch circuit includes: If the humidity information is greater than the first humidity threshold PH1, the ambient humidity is less than the first humidity threshold PH1, the temperature information is less than the second temperature threshold t2 and the pressure information is greater than the first pressure threshold, a second electromagnetic valve is opened, wherein the second electromagnetic valve is used for controlling the water discharge; If the second electromagnetic valve is opened and the humidity information is smaller than the second humidity threshold PH2, closing the second electromagnetic valve; If the humidity information is greater than the first humidity threshold PH1, the ambient humidity is less than the first humidity threshold PH1, the temperature information is less than the second temperature threshold t2, the pressure information is greater than the first pressure threshold and the ambient pressure is greater than the first pressure threshold, the engine is started to operate normally; if the humidity information is greater than the first humidity threshold PH1, the ambient humidity is less than the first humidity threshold PH1, and the temperature information is greater than the second temperature threshold t2, executing the first judgment branch; if the humidity information is greater than the first humidity threshold PH1, the ambient humidity is greater than the first humidity threshold PH1, and the humidity information is less than the ambient humidity, the engine is started to operate normally; if the humidity information is greater than the first humidity threshold PH1, the ambient humidity is greater than the first humidity threshold PH1, the humidity information is greater than the ambient humidity, the temperature information is less than the second temperature threshold t2, and the pressure information is greater than the first pressure threshold, opening the second electromagnetic valve; If the humidity information is smaller than the first humidity threshold PH1 and the temperature sensor has a value, executing the third judging branch; the third judging branch circuit includes: If the pressure information is smaller than the first pressure threshold, the pressure sensor has a numerical value, and the ambient pressure is larger than or equal to the first pressure threshold, stopping the operation of the supercharger and executing a fault operation mode; If the pressure information is smaller than the first pressure threshold, the pressure sensor has a numerical value, the ambient pressure is smaller than the first pressure threshold and the ambient pressure is larger than the pressure information, stopping the operation of the supercharger and executing a fault operation mode; If the pressure information is smaller than the first pressure threshold, the pressure sensor has a numerical value, the ambient pressure is smaller than the first pressure threshold, and the ambient pressure is smaller than the pressure information, the engine is started to operate normally.
2. The control method of an oil cooler according to claim 1, further comprising, after the obtaining of the temperature information, the humidity information, and the pressure information of the oil inlet and the oil outlet of the oil cooler: Generating display information according to the temperature information, the humidity information and the pressure information so as to display on a dashboard; the display information comprises at least one of a temperature value, a humidity value, a pressure value and fault prompting information.
3. The control method of an oil cooler according to claim 1, wherein the failure operation mode includes: Reducing the speed and load of the engine.
4. The method for controlling an oil cooler according to claim 1, further comprising recording related information in a memory while executing the first judging branch, the second judging branch, and the third judging branch.
5. A control device of an oil cooler for performing the control method of an oil cooler according to any one of claims 1 to 4, comprising: The information acquisition module is used for acquiring temperature information, humidity information and pressure information of oil inlet and oil discharge of the oil cooler; The fault judging module is used for judging the fault state of the engine oil cooler by combining the temperature information, the humidity information and the pressure information; and the execution module is used for controlling the state of the corresponding electromagnetic valve and controlling the running state of the engine according to the fault state of the oil cooler.
6. A vehicle, characterized in that the vehicle comprises: At least one processor, and A memory communicatively coupled to the at least one processor, wherein, The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the control method of the oil cooler of any one of claims 1-4.
7. A computer-readable storage medium storing computer instructions for causing a processor to execute the control method of the oil cooler according to any one of claims 1 to 4.
8. A computer program product, characterized in that the computer program product comprises a computer program which, when being executed by a processor, implements the method of controlling an oil cooler according to any one of claims 1-4.

Description

Control method and device for engine oil cooler, vehicle, medium and program product Technical Field The present invention relates to the field of vehicle technologies, and in particular, to a method and apparatus for controlling an engine oil cooler, a vehicle, a medium, and a program product. Background The engine oil cooler is one of important parts in the automobile, and has the functions of cooling lubricating oil, keeping the oil temperature within a normal working range, keeping the certain viscosity of the lubricating oil and prolonging the service life of the lubricating oil. If the engine oil cooler fails, the cooling capacity is insufficient, so that the lubricating capacity of the lubricating oil is reduced, the engine is poor in lubrication, and friction accessories are seriously worn, so that the engine is damaged. The prior art has the problem that the failure of the engine oil cooler cannot be judged in real time. Disclosure of Invention The invention provides a control method, a device, a vehicle, a medium and a program product of an oil cooler, which are used for accurately judging the fault state of the oil cooler in real time and improving the safety of the vehicle. According to an aspect of the present invention, there is provided a control method of an oil cooler, including: Acquiring temperature information, humidity information and pressure information of oil inlet and oil discharge of an oil cooler; judging the fault state of the engine oil cooler by combining the temperature information, the humidity information and the pressure information; and controlling the state of the corresponding electromagnetic valve and the running state of the engine according to the fault state of the engine oil cooler. According to another aspect of the present invention, there is provided a control apparatus including: The information acquisition module is used for acquiring temperature information, humidity information and pressure information of oil inlet and oil discharge of the oil cooler; the fault judging module is used for judging the fault state of the engine oil cooler by combining the temperature information, the humidity information and the pressure information; And the execution module is used for controlling the state of the corresponding electromagnetic valve and the running state of the engine according to the fault state of the engine oil cooler. According to another aspect of the present invention, there is provided a vehicle including: At least one processor, and A memory communicatively coupled to the at least one processor, wherein, The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the method of controlling an oil cooler according to any one of the embodiments of the present invention. According to another aspect of the present invention, there is provided a computer-readable storage medium storing computer instructions for causing a processor to execute a control method of an oil cooler according to any one of the embodiments of the present invention. According to another aspect of the invention, a computer program product is provided, the computer program product comprising a computer program which, when executed by a processor, implements a method of controlling an oil cooler according to any one of the embodiments of the invention. According to the technical scheme, the fault state of the oil cooler is judged by acquiring the temperature information, the humidity information and the pressure information of oil inlet and oil discharge of the oil cooler and combining the temperature information, the humidity information and the pressure information. And controlling the state of the corresponding solenoid valve and the running state of the engine according to the fault state of the engine oil cooler. According to the technical scheme provided by the embodiment of the invention, the temperature information, the humidity information and the pressure information are integrated, so that the basis of fault judgment is more comprehensive, and the judgment result is more accurate. Therefore, the technical scheme of the embodiment of the invention can solve the problems that the prior art cannot judge the failure of the engine oil cooler in real time and react to the failure, realize the real-time and accurate judgment of the failure state of the engine oil cooler, adopt corresponding control means to remove the failure, be favorable for guaranteeing the lubrication requirement of the engine and improve the safety of the vehicle. It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the presen