Engine control method, device, system and storage medium

Abstract

The present application provides an engine control method, device, system and storage medium, the method comprising: determining the running state of the engine; if the running state of the engine is the starting state, obtaining the temperature state value of the engine, wherein the temperature state value of the engine is the smaller of the oil temperature and the water outlet temperature; judging the size of the temperature state value and the preset temperature limit; if the temperature state value is lower than the preset temperature limit, controlling the engine to enter the first rapid warm-up mode; continuously obtaining the temperature state value of the engine; when the temperature state value is higher than or equal to the preset temperature limit, controlling the engine to end the first rapid warm-up mode. The water content of the engine oil and the engine failure caused by the excessively high water content of the engine oil are reduced.

Description

Technical Field

[0001] The present application relates to the field of automobile manufacturing technology, and in particular to an engine control method, device, system and storage medium. Background Art

[0002] After the current engine emission standards are upgraded, equivalent combustion technology is used. The water concentration in the gas after combustion is high, which makes it easy for water vapor condensation to occur in the crankcase gas. The condensed water enters the engine oil, which will cause the water content of the engine oil to be high, leading to engine power shortage, abnormal noise and other faults.

[0003] Therefore, there is an urgent need for an engine control method that can quickly reduce the water content of engine oil in the engine. Summary of the invention

[0004] The present application provides an engine control method, device, system and storage medium to overcome the problem of engine failure caused by excessive water content in engine oil.

[0005] In a first aspect, the present application provides an engine control method, comprising: determining an operating state of an engine;

[0006] If the running state of the engine is the starting state, then obtaining the temperature state value of the engine, wherein the temperature state value of the engine is the smaller of the engine oil temperature and the outlet water temperature;

[0007] Determine the temperature status value and the preset temperature limit value;

[0008] If the temperature state value is lower than the preset temperature limit, the engine is controlled to enter the first rapid warm-up mode;

[0009] Continuously obtain the temperature status value of the engine;

[0010] When the temperature state value is higher than or equal to the preset temperature limit, the engine is controlled to end the first fast warm-up mode.

[0011] In a possible design, controlling the engine to enter the first rapid warm-up mode includes: increasing the engine idle speed; and increasing the engine torque.

[0012] In one possible design, increasing the torque of the engine includes turning on the engine fan.

[0013] In one possible design, after continuously acquiring the temperature status value of the engine, it also includes: after a first preset period of time, if the temperature status value of the engine is always lower than the preset temperature limit, controlling the engine from the first rapid hot-car mode to the second rapid hot-car mode; wherein the second rapid hot-car mode includes: increasing the engine idle speed; or, increasing the engine torque.

[0014] In a possible design, after controlling the engine from the first rapid warm-up mode to enter the second rapid warm-up mode, it also includes: after a second preset period of time, if the temperature state value of the engine is always lower than the preset temperature limit, controlling the engine to end the second rapid warm-up mode.

[0015] In a possible design, if the temperature state value is lower than a preset temperature limit, after controlling the engine to enter the first rapid warm-up mode, the method further includes: when a driving signal applied by a driver is received, controlling the engine to end the first rapid warm-up mode.

[0016] In a possible design, after obtaining the temperature state value of the engine, the method further includes: if the temperature state value of the engine is higher than or equal to a preset temperature limit, controlling the engine to maintain a normal mode.

[0017] In one possible design, the preset temperature limit is 75°C.

[0018] In a second aspect, the present application provides an engine control device, comprising:

[0019] A determination module, used for determining the operating state of the engine;

[0020] A first acquisition module is used to acquire a temperature state value of the engine if the running state of the engine is a starting state, wherein the temperature state value of the engine is the smaller of the engine oil temperature and the outlet water temperature;

[0021] A judgment module, used to judge the size of the temperature state value and the preset temperature limit value;

[0022] A first control module, configured to control the engine to enter a first rapid warm-up mode if the temperature state value is lower than a preset temperature limit;

[0023] A second acquisition module is used to continuously acquire the temperature state value of the engine;

[0024] The second control module is used to control the engine to end the first rapid warm-up mode when the temperature state value is higher than or equal to a preset temperature limit.

[0025] In a third aspect, the present application provides an engine control system, comprising:

[0026] Oil temperature sensor, used to collect the engine oil temperature;

[0027] Water temperature sensor, used to collect the outlet water temperature of the engine water tank;

[0028] An electronic control unit comprises at least one processor and a memory; the memory stores computer-executable instructions; at least one processor executes the computer-executable instructions stored in the memory, so that at least one processor executes the engine control method as described in the first aspect and various possible designs of the first aspect.

[0029] In a fourth aspect, the present application provides a computer storage medium storing computer execution instructions. When a processor executes the computer execution instructions, the engine control method as described in the first aspect and various possible designs of the first aspect are implemented.

[0030] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program. When the computer program is executed by a processor, it implements the engine control method as described in the first aspect and various possible designs of the first aspect.

[0031] The engine control method, device, system and storage medium provided in the present application obtain the operating state of the engine, and when the operating state of the engine is the starting state, obtain the temperature state value of the engine, and when the temperature state value of the engine is lower than the preset temperature limit, the engine is caused to enter the first rapid warm-up mode, and when the temperature state value of the engine is higher than the preset temperature limit, the engine is controlled to end the first rapid warm-up mode, so that the temperature state value of the engine is quickly increased in the starting stage, the condensation of water vapor is reduced, and the occurrence of engine failures caused by high water content in the engine oil is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 A schematic diagram of an application scenario of the engine control method provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of a flow chart of an engine control method provided by an embodiment of the present application;

[0035] Figure 3 A schematic diagram of the structure of an engine control device provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the hardware structure of the engine control system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] In view of the problem in the prior art that, due to the high concentration of water in the gas after combustion of the engine oil, the condensed water will enter the engine oil, causing the water content of the engine oil to be high, thereby causing engine failure. The disclosed embodiment proposes the following technical concept: by comparing the temperature state value of the engine in the starting state with the size of the preset temperature limit, it is determined whether the engine is in the warm-up mode to reduce the condensation of water in the gas after combustion, thereby reducing the engine failure problem caused by the high water content of the engine oil.

[0039] Figure 1 Schematic diagram of application scenarios of the engine control method provided in the embodiment of the present application. Figure 1 As shown, it includes an engine 101, an oil temperature sensor 102, a water temperature sensor 103 and an electronic control unit 104 arranged on the engine 101. The engine 101 sends the current running state to the electronic control unit 103, the oil temperature sensor 102 collects the oil temperature of the engine and sends it to the electronic control unit 104, the water temperature sensor collects the outlet water temperature of the engine water tank and sends it to the electronic control unit 104, and the electronic control unit 104 receives the running state of the engine, the oil temperature and the outlet water temperature of the water tank and controls the running of the engine 101.

[0040] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0041] Figure 2 This is a flow chart of the engine control method provided in the embodiment of the present application. The execution subject of this embodiment can be Figure 1 The electronic control unit in the embodiment shown may also be other forms of controllers, which are not particularly limited in this embodiment. Figure 2 As shown, the method includes:

[0042] S201: Determine the operating status of the engine.

[0043] The operating state of the engine includes the starting state and the driving state.

[0044] Specifically, the acceleration of the vehicle is obtained from an acceleration sensor on the vehicle. If the acceleration exceeds a preset threshold, the operating state of the engine is a starting state; if the acceleration is lower than the preset threshold, the operating state of the engine is a driving state.

[0045] S202: If the running state of the engine is the starting state, obtain the temperature state value of the engine, wherein the temperature state value of the engine is the smaller one of the engine oil temperature and the outlet water temperature.

[0046] Specifically, the engine oil temperature is obtained from the engine oil temperature sensor, and the engine water outlet temperature is obtained from the water temperature sensor, and the engine oil temperature and the water outlet temperature are compared to obtain the smaller one.

[0047] S203: Determine the size of the temperature state value and the preset temperature limit value. If the temperature state value is lower than the preset temperature limit value, execute S205; if the temperature state value of the engine is higher than or equal to the preset temperature limit value, execute S204.

[0048] In this embodiment, the preset temperature limit is 75°C.

[0049] S204: Control the engine to maintain normal mode.

[0050] S205: Control the engine to enter a first rapid warm-up mode.

[0051] Among them, controlling the engine to enter the first rapid warm-up mode includes: increasing the engine idle speed; and increasing the engine torque.

[0052] In this embodiment, the engine torque can be increased by turning on the engine fan.

[0053] Specifically, a signal for entering the first rapid warm-up mode is sent to the engine, the engine increases the air intake volume to raise the idle speed, and turns on the engine fan.

[0054] S206: Continuously obtain the temperature state value of the engine, and determine the magnitude of the temperature state value and the preset temperature limit value.

[0055] Specifically, the oil temperature measured by the oil temperature sensor and the water outlet temperature measured by the water temperature sensor are obtained, and the oil temperature and the water outlet temperature are compared at fixed time intervals to obtain a temperature state value.

[0056] S207: When the temperature state value is higher than or equal to the preset temperature limit, control the engine to end the first rapid warm-up mode.

[0057] Specifically, when the temperature state value is higher than or equal to the preset temperature limit, a signal for ending the first rapid warm-up mode is sent to the engine, so that the engine reduces the idle speed and turns off the engine fan.

[0058] In summary, the engine control method provided in this embodiment obtains the operating state of the engine, and when the operating state of the engine is the starting state, obtains the temperature state value of the engine, and when the temperature state value of the engine is lower than the preset temperature limit, the engine enters the first rapid warm-up mode, and when the temperature state value of the engine is higher than the preset temperature limit, the engine is controlled to end the first rapid warm-up mode, so that the temperature state value of the engine is quickly increased during the starting stage, the condensation of water vapor is reduced, and the occurrence of engine failures caused by high water content in the engine oil is reduced.

[0059] This embodiment Figure 2 Based on the embodiment, the processing process of preventing the engine from failing due to the engine maintaining a high idle speed and high torque for a long time after S207 is mainly introduced, and the process includes:

[0060] S208: After the first preset period of time, if the temperature state value of the engine is always lower than the preset temperature limit, control the engine to enter the second fast warm-up mode from the first fast warm-up mode.

[0061] The second rapid warm-up mode includes: increasing the engine idle speed; or increasing the engine torque.

[0062] Exemplarily, the first preset time period may be 10 minutes.

[0063] In summary, the engine control method provided in this embodiment controls the engine to enter the second rapid warm-up mode from the first rapid warm-up mode when the temperature state value of the engine does not reach the preset temperature limit after the first preset period of time, thereby reducing the problem of engine failure caused by the engine maintaining a high idle speed and high torque working state for a long time.

[0064] Based on the previous embodiment, this embodiment focuses on the processing process of preventing the engine from malfunctioning due to the engine maintaining a high idle speed or high torque for a long time after S208. The process includes:

[0065] S209: After the second preset period of time, if the temperature state value of the engine is always lower than the preset temperature limit, the engine is controlled to end the second rapid warm-up mode.

[0066] Exemplarily, the second preset time period may be 10 minutes.

[0067] In summary, the engine control method provided in this embodiment reduces the problem of engine failure caused by the engine maintaining a high idle speed or high torque working state for a long time by controlling the engine to end the second rapid warm-up mode after the second preset period.

[0068] This embodiment Figure 2 Based on the embodiment, the processing process of receiving the driving signal of the driver after S205 is mainly introduced, which specifically includes:

[0069] When a driving signal applied by the driver is received, the engine is controlled to end the first rapid warm-up mode.

[0070] Specifically, the driver applies a driving signal through a device such as an operating console, and a sensor arranged on the operating console sends the driving signal to the electronic control unit. After receiving the driving signal applied by the driver, the engine is controlled to reduce the idle speed and turn off the fan to end the first rapid warm-up mode.

[0071] In this embodiment, the driving signal may be a gear position signal applied by the driver, or may be a driving signal such as an accelerator pedal signal.

[0072] In summary, the engine control method provided in this embodiment controls the engine to end the rapid warm-up mode after receiving the driving signal applied by the driver, so as to avoid affecting the normal operation of the vehicle.

[0073] Figure 3 This is a schematic diagram of the structure of the engine control device provided in the embodiment of the present application. Figure 3 As shown, the engine control device includes: a determination module 301 , a first acquisition module 302 , a judgment module 303 , a first control module 304 , a second acquisition module 305 and a second control module 306 .

[0074] A determination module 301 is used to determine the operating state of the engine;

[0075] A first acquisition module 302 is used to acquire a temperature state value of the engine if the running state of the engine is a starting state, wherein the temperature state value of the engine is the smaller of the engine oil temperature and the outlet water temperature;

[0076] The judging module 303 is used to judge the temperature state value and the preset temperature limit value;

[0077] The first control module 304 is used to control the engine to enter a first rapid warm-up mode if the temperature state value is lower than a preset temperature limit;

[0078] The second acquisition module 305 is used to continuously acquire the temperature state value of the engine;

[0079] The second control module 306 is configured to control the engine to end the first rapid warm-up mode when the temperature state value is higher than or equal to a preset temperature limit.

[0080] In a possible implementation, the first control module 304 is specifically used to: increase the idle speed of the engine; and increase the torque of the engine.

[0081] In a possible design, the first control module 304 is further configured to: turn on the engine fan.

[0082] In one or more embodiments of the present application, continue to refer to Figure 3 The device also includes a third control module 307, which is specifically used to: after a first preset period of time, if the temperature state value of the engine is always lower than the preset temperature limit, control the engine to enter the second fast hot car mode from the first fast hot car mode; wherein the second fast hot car mode includes: increasing the engine idle speed; or, increasing the engine torque.

[0083] In one or more embodiments of the present application, continue to refer to Figure 3 The device also includes a fourth control module 308, which is specifically used to: after the second preset period of time, if the temperature state value of the engine is always lower than the preset temperature limit, control the engine to end the second rapid warm-up mode.

[0084] In one or more embodiments of the present application, continue to refer to Figure 3 The device also includes a fifth control module 309, which is specifically used to control the engine to end the first rapid warm-up mode when a driving signal applied by the driver is received.

[0085] In one or more embodiments of the present application, continue to refer to Figure 3 The device also includes a sixth control module 310, which is specifically used to control the engine to maintain a normal mode if the temperature state value of the engine is higher than or equal to a preset temperature limit.

[0086] In a possible implementation, the preset temperature limit is 75°C.

[0087] The device provided in this embodiment can be used to execute the technical solution of the above method embodiment. Its implementation principle and technical effect are similar, and this embodiment will not be repeated here.

[0088] Continue to refer Figure 1 , the engine control system of this embodiment includes: an oil temperature sensor 101, used to collect the oil temperature of the engine;

[0089] A water temperature sensor 102 is used to collect the outlet water temperature of the engine water tank;

[0090] The electronic control unit 103 includes Figure 4 The electronic control unit provided in the embodiment of the present application includes at least one processor 401 and a memory 402;

[0091] Memory 402, used to store computer-executable instructions;

[0092] The processor 401 is used to execute the computer-executable instructions stored in the memory to implement the various steps performed by the electronic control unit in the above embodiment. For details, please refer to the relevant description in the above method embodiment.

[0093] Optionally, the memory 402 may be independent or integrated with the processor 401 .

[0094] When the memory 402 is independently provided, the electronic control unit further includes a bus 403 for connecting the memory 402 and the processor 401 .

[0095] An embodiment of the present application also provides a computer storage medium, in which computer execution instructions are stored. When a processor executes the computer execution instructions, the above engine control method is implemented.

[0096] The embodiment of the present application also provides a computer program product, including a computer program, which implements the above engine control method when the computer program is executed by a processor. The embodiment of the present application also provides a computer program product, including a computer program, which implements the above engine control method when the computer program is executed by a processor.

[0097] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules is only a logical function division, and there may be other division methods in actual implementation, such as multiple modules can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms.

[0098] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to implement the solution of this embodiment.

[0099] In addition, each functional module in each embodiment of the present application can be integrated into one processing unit, or each module can exist physically separately, or two or more modules can be integrated into one unit. The above-mentioned module-composed unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

[0100] The above-mentioned integrated module implemented in the form of a software function module can be stored in a computer-readable storage medium. The above-mentioned software function module is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, electronic device, or network device, etc.) or a processor to perform some steps of the methods of various embodiments of the present application.

[0101] It should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the invention may be directly implemented as being executed by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor.

[0102] The memory may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory, and may also be a USB flash drive, a mobile hard disk, a read-only memory, a magnetic disk or an optical disk, etc.

[0103] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0104] The above storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The storage medium can be any available medium that can be accessed by a general or special purpose computer.

[0105] An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the storage medium can also exist as discrete components in an electronic device or a main control device.

[0106] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An engine control method, characterized in that: Applications in electronic control units, including: Determine the operating status of the engine; If the running state of the engine is the starting state, obtaining the temperature state value of the engine, wherein the temperature state value of the engine is the smaller one of the engine oil temperature and the outlet water temperature; Determine the temperature state value and the preset temperature limit value; If the temperature state value is lower than the preset temperature limit, controlling the engine to enter a first rapid warm-up mode; Continuously obtain the temperature status value of the engine; When the temperature state value is higher than or equal to the preset temperature limit, controlling the engine to end the first rapid warm-up mode; After continuously acquiring the temperature state value of the engine, the method further includes: After a first preset period of time, if the temperature state value of the engine is always lower than the preset temperature limit, the engine is controlled to enter the second fast warm-up mode from the first fast warm-up mode; The second rapid engine warm-up mode includes: increasing the engine idle speed; or increasing the engine torque; After the controlling the engine to enter the second fast warm-up mode from the first fast warm-up mode, the method further comprises: After a second preset period of time, if the temperature state value of the engine is always lower than the preset temperature limit, controlling the engine to end the second rapid warm-up mode; The controlling the engine to enter the first rapid warm-up mode comprises: Increase engine idle speed; Increase engine torque.

2. The method according to claim 1, characterized in that The step of increasing the torque of the engine comprises: Turn on the engine fan.

3. The method according to claim 1, characterized in that If the temperature state value is lower than the preset temperature limit, after controlling the engine to enter the first rapid warm-up mode, the method further includes: When a driving signal applied by the driver is received, the engine is controlled to end the first rapid warm-up mode.

4. The method according to claim 1, characterized in that: After obtaining the temperature state value of the engine, the method further includes: If the temperature state value of the engine is higher than or equal to the preset temperature limit, the engine is controlled to maintain the normal mode.

5. The method according to any one of claims 1 to 4, characterized in that: The preset temperature limit is 75°C.

6. An engine control device, characterized in that: Applications in electronic control units, including: A determination module, used for determining the operating state of the engine; A first acquisition module is used to acquire a temperature state value of the engine if the running state of the engine is a starting state, wherein the temperature state value of the engine is the smaller of the engine oil temperature and the outlet water temperature; A judgment module, used for judging the size of the temperature state value and the preset temperature limit value; A first control module, configured to control the engine to enter a first rapid warm-up mode if the temperature state value is lower than a preset temperature limit; A second acquisition module, used for continuously acquiring a temperature state value of the engine; A second control module, configured to control the engine to end the first rapid warm-up mode when the temperature state value is higher than or equal to a preset temperature limit; A third control module is specifically configured to control the engine to enter a second fast warm-up mode from the first fast warm-up mode after the engine temperature state value is continuously obtained and after a first preset period of time has passed, if the engine temperature state value is always lower than a preset temperature limit value; The second rapid engine warm-up mode includes: increasing the engine idle speed; or increasing the engine torque; a fourth control module, specifically configured to control the engine to end the second rapid warm-up mode after the engine is controlled to enter the second rapid warm-up mode from the first rapid warm-up mode and after a second preset period of time, if the temperature state value of the engine is always lower than a preset temperature limit; The first control module is specifically used to increase the engine idle speed and increase the engine torque.

7. An engine control system, characterized in that: include: Oil temperature sensor, used to collect the engine oil temperature; Water temperature sensor, used to collect the water outlet temperature of the engine water tank; an electronic control unit comprising at least one processor and a memory; The memory stores computer-executable instructions; the at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the engine control method according to any one of claims 1 to 5.

8. A computer storage medium, characterized in that: The computer storage medium stores computer executable instructions, and when the processor executes the computer executable instructions, the engine control method according to any one of claims 1 to 5 is implemented.

9. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the engine control method according to any one of claims 1 to 5 is implemented.

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