CN117027996A

CN117027996A - Control method and device for engine oil cooler, vehicle, medium and program product

Info

Publication number: CN117027996A
Application number: CN202311153093.7A
Authority: CN
Inventors: 张�杰; 孙佳侣; 魏宏亮; 赵严伟; 李越星; 马怀阳; 崔石柱; 孙博; 冯海涛; 宋佰达
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2023-11-10

Abstract

The invention discloses a control method, a device, a vehicle, a medium and a program product of an engine oil cooler, wherein the control method comprises the following steps: and acquiring temperature information, humidity information and pressure information of oil inlet and oil discharge of the 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.

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 present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flow chart of a control method of an engine oil cooler provided by an embodiment of the invention;

FIG. 2 is a flowchart of another control method of an engine oil cooler according to an embodiment of the present invention;

FIG. 3 is a flowchart of a control method of an engine oil cooler according to another embodiment of the present invention;

fig. 4 is a flowchart of a first judging branch according to an embodiment of the present invention;

fig. 5 is a flowchart of a second judging branch according to an embodiment of the present invention;

fig. 6 is a flowchart of a third judging branch according to an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a control device for an engine oil cooler according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a flowchart of a control method of an oil cooler according to an embodiment of the present invention, where the method may be performed by a control device of the oil cooler, where the control device of the oil cooler may be implemented in hardware and/or software, and the control device of the oil cooler may be configured in a vehicle. Referring to fig. 1, the control method may include the steps of:

s110, acquiring temperature information, humidity information and pressure information of oil inlet and oil discharge of the oil cooler.

The temperature information may include temperature information of an oil inlet and an oil outlet of the oil cooler, and may be collected by respectively setting temperature detection elements (e.g., temperature sensors) at the oil inlet and the oil outlet of the oil cooler. The humidity information includes humidity information inside the oil cooler, and may be collected by providing a humidity detection element (e.g., a humidity sensor) inside the oil cooler. The pressure information includes pressure information inside the oil cooler, and may be collected by providing a pressure detecting element (e.g., a pressure sensor) inside the oil cooler.

And S120, judging the fault state of the engine oil cooler by combining the temperature information, the humidity information and the pressure information.

The inventor researches show that when the engine oil cooler works, the working efficiency is influenced by not only the inlet and discharge oil temperature, but also the inlet and discharge oil humidity and the inlet and discharge oil pressure. For example, if the temperature information of the oil drain port of the oil cooler is too high, the oil cooler or the temperature detecting element may malfunction; and if the temperature information of the oil drain port of the oil cooler is normal, the humidity in the oil cooler is too high, and the oil cooler or the humidity detection element may malfunction. For example, table 1 is a table of temperature, humidity and pressure values of an oil drain port of an oil cooler provided in the embodiment of the present invention, and as shown in table 1, when the oil cooler works normally, the temperature value of the oil drain port of the oil cooler ranges from 30 ℃ to 60 ℃, the humidity value of the oil cooler ranges from 5% to 80%, and the pressure value of the oil cooler ranges from 100KPa to 250KPa.

TABLE 1

	Maximum value	Minimum value
			Pressure value	250KPa	100KPa
Temperature value	60℃	30℃
			Humidity value	80％	5％

S130, controlling the state of the corresponding electromagnetic valve according to the fault state of the engine oil cooler and controlling the running state of the engine.

Wherein, some faults of the engine oil cooler can be eliminated by controlling the corresponding electromagnetic valve to be opened or closed. When the temperature of the oil discharged from the oil cooler is higher than the normal temperature, the opening of the first solenoid valve is controlled to be increased, the coolant flow rate is increased, and the temperature of the oil discharged from the oil cooler is reduced until the temperature is consistent with the normal temperature, and the opening of the first solenoid valve is controlled to be reduced or closed. When the humidity of the oil cooler is higher than the normal humidity, the second electromagnetic valve is controlled to be opened, and the oil cooler is drained, so that the oil discharging humidity of the oil cooler is reduced until the humidity is consistent with the normal humidity, and the second electromagnetic valve is controlled to be closed. When the engine oil cooler fails, the engine needs to be controlled to run in a failure state, and if the running state of the engine is not controlled, the running safety is endangered.

According to the technical scheme, the temperature information, the humidity information and the pressure information of oil inlet and oil discharge of the oil cooler are obtained, and the fault state of the oil cooler is judged by 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, temperature information, humidity information and pressure information are integrated, so that the basis of fault judgment is more comprehensive, and the judgment result is more accurate. Therefore, the embodiment solves the problem that the engine oil cooler cannot judge faults in real time and react to the faults, realizes the real-time and accurate judgment of the fault state of the engine oil cooler, adopts corresponding control means to remove the faults, is beneficial to guaranteeing the lubrication requirement of the engine and improves the safety of the vehicle.

Fig. 2 is a flowchart of another control method of an engine oil cooler according to an embodiment of the present invention, referring to fig. 2, and on the basis of the foregoing embodiments, optionally, the embodiment of the present invention may further display corresponding information on an instrument panel. Specifically, the control method may include the steps of:

s210, acquiring temperature information, humidity information and pressure information of oil inlet and oil discharge of the oil cooler.

And S220, generating display information according to the temperature information, the humidity information and the pressure information so as to display on a dashboard.

Wherein the display information includes at least one of: temperature value, humidity value, pressure value and fault prompting information.

By way of example, the form of the display information may include numerals, bar charts, or the like, and the color of the display information may include red, yellow, green, or the like. Wherein the temperature values may include oil inlet and outlet temperature values of the oil cooler. The fault prompting information can comprise normal and fault prompting characters. For example, when the acquired temperature information, humidity information and pressure information are all normal, a graph or a number representing the temperature information, the humidity information and the pressure information on the instrument panel is displayed as green, and the fault prompting information is displayed as normal, which indicates that the engine oil cooler is operating normally. When the acquired temperature information is abnormal, a graph or a number representing the temperature information on the instrument panel is displayed in red, and at the moment, fault prompt information is displayed as a fault to represent that the oil cooler breaks down. When the acquired temperature information and pressure information are normal and the humidity information is abnormal, a graph or a number representing the humidity information on the instrument panel is displayed in red, and at the moment, fault prompt information is displayed as a fault to indicate that the oil cooler breaks down. When the acquired temperature information and humidity information are normal and the pressure information is abnormal, a graph or a number representing the temperature information on the instrument panel is displayed in red, and at the moment, fault prompt information is displayed as a fault to represent that the oil cooler breaks down.

S230, judging the fault state of the engine oil cooler by combining the temperature information, the humidity information and the pressure information.

S240, controlling the state of the corresponding electromagnetic valve according to the fault state of the engine oil cooler and controlling the running state of the engine.

The technical scheme of the embodiment realizes real-time display of the temperature information, the humidity information and the pressure information of the engine oil cooler so as to prompt a user, and improves the safety of drivers and passengers.

Fig. 3 is a flowchart of a control method of an engine oil cooler according to another embodiment of the present invention, and referring to fig. 3, on the basis of the foregoing embodiments, the embodiment of the present invention further defines a step of "generating display information according to temperature information, humidity information, and pressure information to display on an instrument panel". Specifically, the control method may include the steps of:

s310, acquiring temperature information, humidity information and pressure information of oil inlet and oil discharge of the oil cooler.

And S320, generating display information according to the temperature information, the humidity information and the pressure information so as to display on a dashboard.

S330, powering up the whole vehicle.

S340, the engine control unit performs self-learning.

S350, judging whether the temperature information, the humidity information and the pressure information of the engine oil cooler are normal or not. If yes, executing S360; if not, then S370 is performed.

S360, the engine is started to run normally.

And S370, executing a fault operation mode.

And S380, manually confirming the fault reason, overhauling the engine oil cooler, and returning to the step S330 after overhauling.

S390, determining the demand level of the engine oil cooler.

S3100, confirming that the memory has no corresponding data record.

S3110, the vehicle controller detects the running state of the vehicle.

After the whole vehicle is electrified, the engine control unit firstly carries out self-learning, and if abnormal temperature information, humidity information and pressure information of the engine oil cooler are detected in the self-learning process, the engine is required to be controlled to operate in a fault state, and the engine oil cooler is manually overhauled. The abnormal information condition includes temperature information, humidity information or pressure information overrun, or the condition that the information has no numerical value. And if the temperature information, the humidity information and the pressure information of the oil cooler are detected to be normal in the self-learning process, controlling the engine to normally operate. And determining the demand level of the oil cooler according to the operation condition of the engine. For example, the engine oil cooler is required to have a first order demand level at 3500 r/min. The memory does not record data at this time. During the operation of the vehicle, temperature information, humidity information, pressure information of the oil cooler, and an operation state of the engine are detected in real time, and S3120, S3130, and S3140 are performed.

S3120, a first judging branch circuit comprises sequentially judging whether temperature information, humidity information and pressure information exceed the limit.

The first judging branch circuit judges the temperature information first, then further judges the humidity information according to the judging result, and finally judges the pressure information.

S3130, a second judging branch circuit comprises the step of sequentially judging whether the humidity information, the temperature information and the pressure information exceed the limit.

The second judging branch circuit judges the humidity information first, then further judges the temperature information according to the judging result, and finally judges the pressure information.

S3140, a third judging branch circuit comprises judging whether the pressure information exceeds the limit.

Specifically, when the pressure information exceeds the limit, the state of the electromagnetic valve cannot be controlled to remove the fault, and at the moment, whether the temperature information and the humidity information exceed the limit or not is not needed to be judged, so that judging steps can be reduced, and the flow is simplified.

S3150, controlling the state of the corresponding electromagnetic valve according to the fault state of the engine oil cooler and controlling the running state of the engine.

According to the technical scheme, the acquired information is judged from multiple dimensions, multiple fault conditions are comprehensively considered, the state of the corresponding electromagnetic valve is controlled according to the fault state of the engine oil cooler, the running state of the engine is controlled, the judging result is more accurate, and the safety of the vehicle is further improved.

On the basis of the above embodiments, optionally, before the determining the fault state of the oil cooler by combining the temperature information, the humidity information and the pressure information, the method further includes:

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 are set. Wherein t2 is more than t1 and less than t3, PH2 is more than PH1 and less than PH3, and P1 is more than P2.

And acquiring the ambient temperature, the ambient humidity and the ambient pressure.

For example, the temperature threshold, the humidity threshold, and the pressure threshold may be indicative of a fault condition of the oil cooler. When the temperature value of the oil discharged by the oil cooler is smaller than the second temperature threshold t2, the temperature of the oil cooler is normal. When the temperature value of the oil discharged by the engine oil cooler exceeds the first temperature threshold t1 and does not exceed the third temperature threshold t3, the flow rate of the cooling liquid can be improved by controlling the corresponding electromagnetic valve to be opened, so that faults are eliminated. When the temperature value of the oil discharged by the engine oil cooler exceeds the third temperature threshold t3, the temperature of the engine oil cooler is too high or the temperature detection element is damaged, the fault cannot be removed by adjusting the opening of the corresponding electromagnetic valve, at the moment, the engine is required to be controlled to operate in a fault state, and the engine oil cooler is manually overhauled. And when the humidity value in the oil cooler is smaller than the second humidity threshold PH2, indicating that the humidity of the oil cooler is normal. When the humidity value in the oil cooler exceeds the first humidity threshold PH1 and does not exceed the third humidity threshold PH3, the corresponding electromagnetic valve can be controlled to be opened, and water in the oil cooler is discharged, so that faults are eliminated. When the humidity value in the engine oil cooler exceeds the third humidity threshold PH3, the condition that the humidity of the engine oil cooler is too high or the humidity detection element is damaged is indicated, the fault cannot be removed by adjusting the opening of the corresponding electromagnetic valve, at the moment, the engine is required to be controlled to operate in a fault state, and the engine oil cooler is manually overhauled. When the pressure value in the engine oil cooler is smaller than the first pressure threshold value P1 or larger than the second pressure threshold value P2, the condition that the pressure of the engine oil cooler is over-limit or the pressure detection element is damaged is indicated, and the engine is required to be controlled to operate in a fault state at the moment, and the engine oil cooler is overhauled manually.

Since the ambient temperature, the ambient humidity and the ambient pressure affect the judgment of the fault state of the oil cooler, it is necessary to acquire the above-mentioned respective environmental information and compare it with the respective preset threshold values. And the fault state of the engine oil cooler is judged by combining the temperature information, the humidity information and the pressure information which are acquired in real time at present, so that the accuracy of fault judgment is further improved.

In this embodiment, by setting the threshold values related to the temperature information, the humidity information and the pressure information, and comparing the information obtained in real time with the corresponding preset threshold values, the fault state of the oil cooler can be determined.

On the basis of the above embodiments, optionally, when executing the first judgment branch, the second judgment branch, and the third judgment branch, the method further includes: the relevant information is recorded into a memory.

Specifically, when the first judging branch, the second judging branch and the third judging branch are executed, the detected temperature information, humidity information, pressure information, ambient temperature, ambient humidity and ambient pressure are recorded in the memory, so that the fault cause can be confirmed conveniently.

In this embodiment, by recording the related information in the memory while executing the first judging branch, the second judging branch, and the third judging branch, the fault cause is facilitated to be confirmed later, and the accuracy of the fault judgment is further improved.

The first judging branch circuit is arranged in a plurality of ways based on the above embodiments, and is described in detail below. Optionally, the first judging branch 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, the first solenoid valve is opened. Wherein the first solenoid valve is used for controlling the cooling flow.

And 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, 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 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, then the second solenoid valve is opened, and the steps of judging whether the humidity information is less than the first humidity threshold PH1 and executing the fault operation mode are returned to be 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.

And if the temperature information is smaller than the first temperature threshold t1 and the temperature sensor has a numerical value, executing a 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.

Specifically, fig. 4 is a flowchart of a first judging branch provided in the embodiment of the present invention, referring to fig. 4, where y represents "yes" and N represents "no". In one embodiment, optionally, the step of executing the S3120, first judgment branch is as follows:

S4100, judging whether the temperature information of the engine oil cooler is larger than a first temperature threshold t1. If yes, then execute S4110; if not, and the temperature sensor has a value, S3130 is performed.

S4110, judging whether the ambient temperature is less than a first temperature threshold t1. If yes, then execute S4120; if not, S360 is performed.

S4120, judging whether the humidity information of the oil cooler is smaller than a first humidity threshold PH1. If yes, then execute S4130; if not, then S4200 is performed.

S4130, judging whether the ambient humidity is less than the first humidity threshold PH1. If yes, then execute S4140; if not, S360 is performed.

S4140, judging whether the pressure information of the oil cooler is larger than a first pressure threshold value P1. If yes, then execute S4150; if not, S4230 is performed.

S4150, judging whether the ambient pressure is less than or equal to a first pressure threshold P1. If yes, then execute S4160; if not, S360 is performed.

S4160, the memory records the related data of the current engine oil cooler.

S4170, opening the first electromagnetic valve.

S4180, judging whether the temperature information of the engine oil cooler is smaller than a second temperature threshold t2. If yes, S4190 is performed.

S4190, closing the first electromagnetic valve. S360 is performed after the closing.

S4200, judging whether the ambient humidity is greater than the first humidity threshold PH1. If yes, executing S360; if not, S4210 is performed, and S370 is performed.

S4210, judging whether the humidity information of the engine oil cooler is less than or equal to the ambient humidity. If yes, S4220 is executed.

S4220, opening the second electromagnetic valve. After the start, the process returns to S4120.

S4230, judging whether the ambient pressure is greater than a first pressure threshold P1. If not, S360 is performed.

According to the technical scheme, through the first judging branch, temperature information of the engine oil cooler, ambient temperature and each temperature threshold value are compared in pairs. And on the basis of overrun temperature, the humidity information of the engine oil cooler, the ambient humidity and the first humidity threshold PH1 are compared in pairs. And comparing the oil cooler pressure information and the ambient pressure with a first pressure threshold P1 respectively on the basis of the temperature overrun and the normal humidity. And comprehensively considering various conditions, and judging the fault state of the oil cooler.

The second judging branch circuit is arranged in various ways based on the above embodiments, and the following description will be made. Optionally, the second judging branch 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, the second electromagnetic valve is opened. Wherein the second electromagnetic valve is used for controlling the water discharge.

And 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 less 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 less 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, the second electromagnetic valve is opened.

And if the humidity information is smaller than the first humidity threshold PH1 and the temperature sensor has a value, executing a third judging branch.

Specifically, fig. 5 is a flowchart of a second judging branch provided in the embodiment of the present invention, referring to fig. 5, where y represents "yes" and N represents "no". In one embodiment, optionally, the step of executing the second determining branch in S3130 is as follows:

s5100, judging whether the humidity information of the oil cooler is greater than a first humidity threshold PH1. If yes, then execute S5110; if not, and the humidity sensor has a value, S3140 is performed.

S5110, judging whether the ambient humidity is smaller than a first humidity threshold PH1. If yes, S5120 is executed, and S5130 is executed.

S5120, judging whether the humidity information of the engine oil cooler is smaller than or equal to the ambient humidity. If yes, executing S360; if not, S5130 is performed.

S5130, judging whether the temperature information of the engine oil cooler is smaller than a second temperature threshold t2. If yes, then execute S5140; if not, S3120 is performed.

S5140, judging whether the pressure information of the oil cooler is larger than a first pressure threshold value P1. If yes, then execute S5160; if not, S5150 is performed.

S5150, judging whether the ambient pressure is greater than a first pressure threshold P1. If not, the process returns to S360.

S5160, the memory records the related data of the current engine oil cooler.

S5170, opening the second electromagnetic valve.

S5180, judging whether the humidity information of the oil cooler is smaller than a second humidity threshold PH2. If yes, S5190 is executed.

S5190, closing the second electromagnetic valve. After closing, the process returns to S360.

According to the technical scheme, through the second judging branch, the humidity information of the engine oil cooler, the ambient humidity and the first humidity threshold PH1 are compared in pairs. And on the basis of the humidity overrun, comparing the temperature information of the engine oil cooler with a second temperature threshold t 2. And comparing the oil cooler pressure information and the ambient pressure with a first pressure threshold P1 respectively on the basis of overrun of humidity and normal temperature. And comprehensively considering various conditions, and judging the fault state of the oil cooler.

The third judging branch circuit is arranged in various ways based on the above embodiments, and will be described in detail below. Optionally, the third judging branch includes:

if the pressure information is smaller than the first pressure threshold value P1, the pressure sensor has a value, and the ambient pressure is larger than the first pressure threshold value P1, the supercharger stops running and executes a fault running mode.

If the pressure information is smaller than the first pressure threshold value P1, the pressure sensor has a numerical value, the ambient pressure is smaller than the first pressure threshold value P1, and the ambient pressure is larger than the pressure information, the operation of the supercharger is stopped, and a fault operation mode is executed.

If the pressure information is smaller than the first pressure threshold value P1, the pressure sensor has a numerical value, the ambient pressure is smaller than the first pressure threshold value P1, and the ambient pressure is smaller than the pressure information, the engine is started to operate normally.

Specifically, fig. 6 is a flowchart of a third judging branch provided in the embodiment of the present invention, referring to fig. 6, where y represents "yes" and N represents "no". In one embodiment, optionally, the steps of executing the S3140 and the third judging branch are as follows:

s6100, judging whether the pressure information of the oil cooler is smaller than a first pressure threshold P1. If yes, executing S6110; if not, S360 is performed.

S6110, judging whether the pressure sensor has a numerical value. If yes, executing S6120; if not, then S370 is performed.

S6120, judging whether the ambient pressure is larger than or equal to a first pressure threshold value P1. If yes, executing S6140; if not, S6130 is performed.

S6130, judging whether the ambient pressure is smaller than the pressure information of the engine oil cooler. If yes, executing S360; if not, S6140 is performed.

S6140, stopping the operation of the supercharger.

And S6150, the memory records the related data of the current engine oil cooler. After the data recording is completed, S370 is performed.

According to the technical scheme, through the third judging branch, the oil cooler pressure information and the ambient pressure are compared with the first pressure threshold P1 respectively, and the fault state of the oil cooler is judged. According to the technical scheme of the embodiment, the fault state of the engine oil cooler is further judged according to the pressure information of the engine oil cooler and the ambient pressure, and the safety of a vehicle is further improved.

In the above embodiments, the principle of controlling the oil cooler based on the temperature threshold value is as follows:

when the temperature is abnormal, a first temperature threshold t1, a second temperature threshold t2 and a third temperature threshold t3 are defined. When the temperature of the engine oil cooler is greater than a first temperature threshold t1, the first electromagnetic valve is controlled to be opened, and the flow of the cooling liquid is increased. When the temperature of the standby oil cooler is reduced to a second temperature threshold t2, the first electromagnetic valve is controlled to be closed, and the engine is normally operated. If the temperature of the engine oil cooler is greater than the third temperature threshold t3, the engine control unit controls the engine to reduce the rotating speed and the load of the engine, and the engine returns to normal after waiting for maintenance.

In the above embodiments, the principle of controlling the oil cooler based on the humidity threshold is as follows:

when the humidity is abnormal, a first humidity threshold PH1, a second humidity threshold PH2 and a third humidity threshold PH3 are defined, and when the humidity of the engine oil cooler is greater than the first humidity threshold PH1, the second electromagnetic valve is controlled to be opened for draining. When the humidity of the standby oil cooler is reduced to the second humidity threshold PH2, the second electromagnetic valve is controlled to be closed, and the engine is normally operated. If the humidity of the engine oil cooler is greater than the third humidity threshold PH3, the engine control unit controls the engine to reduce the rotating speed and the load of the engine, and the engine is recovered to be normal after waiting for maintenance.

In the above embodiments, the principle of controlling the oil cooler based on the pressure threshold value is as follows:

when the pressure is abnormal, a first pressure threshold value P1 and a second pressure threshold value P2 are defined, when the pressure of the engine oil cooler is smaller than P1 or larger than P2, the supercharger stops working, the engine control unit controls the engine to reduce the rotating speed and the load, and the engine is restored to normal after waiting for maintenance.

On the basis of the above embodiments, optionally, the failure operation mode includes:

reducing the speed and load of the engine.

Specifically, when the oil cooler fails, the cooling capacity of the oil cooler is insufficient, so that the lubricating degree of engine oil on the engine is affected, and the normal operation of the engine is further affected. In this case, the speed and load of the engine are reduced, and the influence of the failure of the oil cooler on the engine can be reduced.

In the embodiment, the speed and the load of the engine are reduced, the cooling requirement of engine oil is reduced, the influence of faults of the engine oil cooler on the engine is reduced, the service life of the engine is prolonged, and the driving safety is further improved.

Fig. 7 is a schematic structural diagram of a control device for an engine oil cooler according to an embodiment of the present invention, referring to fig. 7, the control device includes:

the information acquisition module 110 is configured to acquire temperature information, humidity information and pressure information of oil inlet and oil outlet of the oil cooler.

The fault judging module 120 is configured to judge a fault state of the oil cooler by combining the temperature information, the humidity information and the pressure information.

The execution module 130 is configured to control a state of a corresponding solenoid valve and an operation state of the engine according to a fault state of the oil cooler.

Optionally, the control device further includes:

and the display module is used for generating display information according to the temperature information, the humidity information and the pressure information so as to display on the instrument panel.

Optionally, the fault determination module 120 includes:

And the first judging unit is used for judging whether the temperature information, the humidity information and the pressure information exceed the limit or not in sequence.

And the second judging unit is used for judging whether the humidity information, the temperature information and the pressure information exceed the limit or not in sequence.

And the third judging unit is used for judging whether the pressure information exceeds the limit.

Optionally, the control device further includes:

the threshold setting module is configured to set 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 is more than t1 and less than t3, PH2 is more than PH1 and less than PH3, and P1 is more than P2.

Optionally, the information acquisition module 110 further includes:

and the environment information acquisition unit is used for acquiring the environment temperature, the environment humidity and the environment pressure.

Optionally, the first judging unit is specifically configured to:

Optionally, the second judging unit is specifically configured to:

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 P1, the second electromagnetic valve is opened. Wherein the second electromagnetic valve is used for controlling the water discharge.

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 less than the first pressure threshold P1, and the ambient pressure is greater than the first pressure threshold P1, 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 P1, the second electromagnetic valve is opened.

Optionally, the third judging unit is specifically configured to:

Optionally, the execution module 130 includes:

and the fault operation unit is used for reducing the speed and the load of the engine.

Optionally, the control device further includes:

and a recording unit for recording the related information in the memory.

The control device of the engine oil cooler provided by the embodiment of the invention can execute the control method of the engine oil cooler provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

The embodiment of the invention also provides a vehicle, which comprises: at least one processor. And a memory communicatively coupled to the at least one processor. The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor, so that the at least one processor can execute the control method of the engine oil cooler provided by any embodiment of the invention. The vehicle provided by the embodiment of the invention has the beneficial effects of the control method of the engine oil cooler provided by any embodiment of the invention, and the technical principle and the generated beneficial effects are similar and are not repeated.

The embodiment of the invention also provides a computer readable storage medium, and the computer readable storage medium stores computer instructions, wherein the computer instructions are used for realizing the control method of the engine oil cooler provided by any embodiment of the invention when being executed by a processor.

The embodiment of the invention also provides a computer program product, the computer program product comprises a computer program, and the computer program realizes the control method of the engine oil cooler according to any embodiment of the invention when being executed by a processor.

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.

The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

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;

and controlling the state of the corresponding electromagnetic valve and the running state of the engine according to the fault state of the oil cooler.

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;

3. The method for controlling an oil cooler according to claim 1, wherein the method for judging a fault state of the oil cooler by combining the temperature information, the humidity information, and the pressure information comprises the 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;

and a third judging branch circuit for judging whether the pressure information exceeds the limit.

4. The control method of an oil cooler according to claim 3, further comprising, before said determining a failure state of said oil cooler by combining said temperature information, said humidity information, and said pressure information:

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 is more than t1 and less than t3, PH2 is more than PH1 and less than PH3, and P1 is more than P2.

5. The control method of an engine oil cooler according to claim 4, wherein the first judging branch 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, opening a first electromagnetic valve; 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, opening a second solenoid valve, returning to execute the step of determining whether the humidity information is less than the first humidity threshold PH1, and executing a fault operation mode; 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;

6. The control method of an engine oil cooler according to claim 4, wherein the second judging branch 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;

and if the humidity information is smaller than the first humidity threshold PH1 and the temperature sensor has a value, executing the third judging branch.

7. The control method of an engine oil cooler according to claim 4, wherein the third judging branch 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.

8. The control method of an oil cooler according to claim 5 or 7, characterized in that the failure operation mode includes:

reducing the speed and load of the engine.

9. The control method of an engine oil cooler according to any one of claims 4 to 7, characterized by further comprising, when executing the first, second, and third judgment branches: the relevant information is recorded into a memory.

10. A control device for an engine oil cooler, comprising:

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.

11. 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 1-9.

12. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions for causing a processor to execute the control method of the oil cooler according to any one of claims 1-9.

13. 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 1-9.