Engine cleaning method and device, electronic equipment and storage medium

Abstract

The invention relates to the technical field of vehicles, in particular to an engine cleaning method and device, electronic equipment and a storage medium, and the method comprises the steps that whether an engine cleaning instruction is received or not is judged; when an engine cleaning instruction is received and the vehicle is in a shutdown state, an air inlet pipe and an air outlet pipe of the engine are blocked, an air inlet valve and a blow-down valve are opened, and a cleaning agent is sprayed into the air inlet valve through a compression pump for cleaning; and the concentration sensor is used for obtaining the oxygen concentration of an outlet of an engine cylinder, and if the oxygen concentration is lower than a preset concentration threshold value, it is judged that cleaning is completed, and cleaning is stopped. Therefore, the problems that the heat efficiency of the engine is reduced and the reliability and economy of the engine are affected due to carbon deposition in the combustion chamber of the engine are solved, the carbon deposition can be cleaned without disassembling the engine, the engine loss caused by disassembling the engine is avoided, and the efficient carbon deposition cleaning effect is achieved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an engine cleaning method, device, electronic equipment and storage medium. Background Art

[0002] Carbon deposits in engines are the result of incomplete combustion of fuel and oxidation of engine oil. These carbon deposits will adhere to the combustion chamber, intake valve, fuel injector and other parts of the engine. As the carbon deposits increase, the thermal efficiency of the engine will gradually decrease, because the carbon deposits will absorb some heat and reduce the heat used for work. In addition, carbon deposits may become hot spots, causing pre-ignition or detonation, which not only affects the power output of the engine, but may also cause damage to engine components, thereby affecting the reliability and economy of the engine.

[0003] In order to reduce the negative impact of carbon deposits on engine performance in the related art, the engine needs to be disassembled and the carbon deposits need to be cleaned. However, disassembling the engine may cause damage to the engine and affect the user's use, causing inconvenience to the user. Summary of the invention

[0004] The present application provides an engine cleaning method, device, electronic device and storage medium to solve the problem of carbon deposits in the engine combustion chamber, which leads to reduced engine thermal efficiency and affects the reliability and economy of the engine. Carbon deposits can be cleaned without disassembling the engine, avoiding engine losses caused by disassembly, and has a highly efficient carbon deposit cleaning effect.

[0005] The first aspect of the present application provides an engine cleaning method, wherein the engine is provided with an engine cleaning device, wherein the engine cleaning device comprises a compressor, a flow meter, an intake valve, a cylinder, a drain valve, a drain pump, a concentration sensor and a drain pipe, wherein the intake valve is connected to the cylinder inlet, the drain valve is connected to the cylinder outlet, the drain valve is connected to one end of the drain pipe, and the other end of the drain pipe is connected to the outside of the vehicle, wherein the method comprises:

[0006] Determine whether to receive an engine cleaning instruction;

[0007] When receiving an engine cleaning instruction and the vehicle is in a stopped state, the air inlet pipe and the air outlet pipe of the engine are blocked, the air inlet valve and the sewage valve are opened, and the cleaning agent is sprayed into the air inlet valve by using the compression pump for cleaning;

[0008] The concentration sensor is used to obtain the oxygen concentration at the cylinder outlet of the engine. If the oxygen concentration is lower than a preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped.

[0009] Optionally, in some embodiments, when the cleaning agent is sprayed into the engine cylinder by the compression pump for cleaning, the method further includes:

[0010] The flow meter is used to obtain the flow rate of the cleaning agent, and the flow rate of the cleaning agent is obtained according to the inlet valve area and the flow rate, and the pressure of the compression pump is determined according to the flow rate of the cleaning agent.

[0011] Optionally, in some embodiments, after the oxygen concentration is lower than a preset concentration threshold, the method further comprises:

[0012] The sewage pump is used to discharge the cleaned detergent from the sewage valve port.

[0013] Optionally, in some embodiments, when the oxygen concentration is lower than a preset concentration threshold, the method further comprises:

[0014] A cleaning completion reminder instruction is generated, and a reminder is given based on the cleaning completion reminder instruction.

[0015] The second aspect of the present application provides an engine cleaning device, wherein the engine is provided with the engine cleaning device, wherein the engine cleaning device comprises a compressor, a flow meter, an intake valve, a cylinder, a drain valve, a drain pump, a concentration sensor and a drain pipe, wherein the intake valve is connected to the cylinder inlet, the drain valve is connected to the cylinder outlet, the drain valve is connected to one end of the drain pipe, and the other end of the drain pipe is connected to the outside of the vehicle, wherein the engine cleaning device comprises:

[0016] A judgment module, used to judge whether an engine cleaning instruction is received;

[0017] A cleaning module, used for blocking the air inlet pipe and the air outlet pipe of the engine, opening the air inlet valve and the drain valve, and using the compression pump to spray the cleaning agent into the air inlet valve for cleaning when receiving the engine cleaning instruction and the vehicle is in a stopped state;

[0018] The determination module is used to obtain the oxygen concentration at the cylinder outlet of the engine by using the concentration sensor. If the oxygen concentration is lower than a preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped.

[0019] Optionally, in some embodiments, when the cleaning agent is sprayed into the engine cylinder by the compression pump for cleaning, the cleaning module further includes:

[0020] The determination unit is used to obtain the flow rate of the detergent using the flow meter, obtain the flow rate of the detergent according to the inlet valve area and the flow rate, and determine the pressure of the compression pump according to the flow rate of the detergent.

[0021] Optionally, in some embodiments, after the oxygen concentration is lower than a preset concentration threshold, the determination module further includes:

[0022] The sewage discharge unit is used to discharge the cleaned detergent from the sewage discharge valve port by using the sewage discharge pump.

[0023] Optionally, in some embodiments, when the oxygen concentration is lower than a preset concentration threshold, the determination module further includes:

[0024] The reminder unit is used to generate a cleaning completion reminder instruction and to make a reminder based on the cleaning completion reminder instruction.

[0025] A third aspect of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the engine cleaning method as described in the above embodiment.

[0026] A fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the engine cleaning method as described in the above embodiment.

[0027] Thus, by judging whether the engine cleaning instruction is received; when the engine cleaning instruction is received and the vehicle is in a stopped state, the intake pipe and the exhaust pipe of the engine are blocked, and the intake valve and the sewage valve are opened, and the cleaning agent is sprayed into the intake valve for cleaning by using a compression pump; the oxygen concentration at the outlet of the engine cylinder is obtained by using a concentration sensor, and if the oxygen concentration is lower than the preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped. Thus, the problem of carbon deposits in the engine combustion chamber, which leads to reduced engine thermal efficiency and affects the reliability and economy of the engine, is solved, and carbon deposits can be cleaned without disassembling the engine, avoiding engine losses caused by disassembly, and having an efficient carbon deposit cleaning effect.

[0028] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0030] Figure 1 A schematic diagram of an engine cleaning device provided according to an embodiment of the present application;

[0031] Figure 2 A flow chart of an engine cleaning method provided according to an embodiment of the present application;

[0032] Figure 3 A block diagram of an engine cleaning device provided according to an embodiment of the present application;

[0033] Figure 4 It is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0035] The following describes the cleaning method, device, electronic device and storage medium of the engine of the embodiment of the present application with reference to the accompanying drawings. In view of the carbon deposits in the combustion chamber of the engine mentioned in the above background technology, which leads to the reduction of the thermal efficiency of the engine and affects the reliability and economy of the engine, the present application provides a cleaning method for the engine, in which it is judged whether the engine cleaning instruction is received; when the engine cleaning instruction is received and the vehicle is in a shutdown state, the intake pipe and the exhaust pipe of the engine are blocked, and the intake valve and the drain valve are opened, and the cleaning agent is sprayed into the intake valve for cleaning by a compression pump; the oxygen concentration at the outlet of the engine cylinder is obtained by a concentration sensor. If the oxygen concentration is lower than the preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped. In this way, the carbon deposits in the combustion chamber of the engine, which leads to the reduction of the thermal efficiency of the engine and affects the reliability and economy of the engine, can be cleaned without disassembling the machine, avoiding the engine loss caused by disassembling the machine, and having an efficient carbon deposit cleaning effect.

[0036] Before explaining the engine cleaning method provided in the embodiment of the present application, the engine involved in the embodiment of the present application is first explained. The engine in the embodiment of the present application is provided with an engine cleaning device, such as Figure 1 As shown, the engine cleaning device includes a compressor 1, a flow meter 2, an intake valve 3, a cylinder 4, a drain valve 5, a drain pump 6, a concentration sensor 7 and a drain pipe 8. The intake valve 5 is connected to the cylinder inlet 4.1, the drain valve 5 is connected to the cylinder outlet 4.2, the drain valve 5 is connected to one end of the drain pipe 8, and the other end of the drain pipe 8 is connected to the outside of the vehicle. The engine cleaning device of the embodiment of the present application may also include a control module 9, which is communicatively connected to the vehicle EUC module to control the compressor 1, the flow meter 2, the intake valve 3, the cylinder 4, the drain valve 5, the drain pump 6, the concentration sensor 7 and the drain pipe 8.

[0037] Among them, the compression component is an intake pump or a hydraulic pump.

[0038] Specifically, a cylinder inlet 4.1 and a cylinder outlet 4.2 connected to the interior of the cylinder body are provided on the cylinder 4. Correspondingly, an intake valve 3 is installed on the cylinder inlet 4.1, and a drain valve 5 is provided on the cylinder outlet 4.2, and the drain valve 5 is connected to a drain pipe 8, and the outlet of the drain pipe 8 is connected to the outside of the vehicle; the intake valve 3 is connected to the compressor 1 via a pipeline, and a drain pump 6 is provided on the drain pipeline; a flow meter 2 is installed on the pipeline connected between the inlet valve 3 and the compressor 1; a concentration sensor 7 is installed on the drain pipe 8; the inlet valve 3, the drain valve 5, the compressor 1, the drain pump 6, the flow meter 2 and the concentration sensor 8 are respectively connected to the control module 9 for communication; and the control module 9 is connected to the EUC module of the vehicle for communication.

[0039] It should be noted that the embodiment of the present application can eliminate the intake valve 3 and the drain valve 5, and use the injector mounting hole as the intake inlet and the spark plug mounting hole as the drain outlet, or use the spark plug mounting hole as the intake inlet and the injector mounting hole as the drain outlet.

[0040] Specifically, Figure 2 A schematic flow chart of an engine cleaning method provided in an embodiment of the present application.

[0041] like Figure 2 As shown, the cleaning method of the engine comprises the following steps:

[0042] In step S101 , it is determined whether an engine cleaning instruction is received.

[0043] Specifically, the embodiment of the present application can determine whether an engine cleaning instruction is received based on the user's request instruction. For example, when the user issues an engine cleaning instruction, the embodiment of the present application can determine that the engine cleaning instruction is received.

[0044] In step S102, when an engine cleaning instruction is received and the vehicle is in a stopped state, the intake pipe and the exhaust pipe of the engine are blocked, and the intake valve and the sewage valve are opened, and the cleaning agent is sprayed into the intake valve for cleaning using a compression pump.

[0045] Specifically, after receiving the engine cleaning instruction, the embodiment of the present application can obtain information through the EUC module of the car whether the engine is in a shutdown state. When it is determined that the engine is in a shutdown state, the engine intake pipe and exhaust pipe are blocked and the inlet valve 3 and the drain valve 5 are opened. The compressor 1 is used to spray gas or volatile organic solvents and other cleaning agents from the inlet valve 3 into the combustion chamber to clean the combustion chamber, that is, enter the cleaning mode.

[0046] In step S103, the oxygen concentration at the outlet of the engine cylinder is obtained by using a concentration sensor. If the oxygen concentration is lower than a preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped.

[0047] The preset concentration threshold is pre-set by the user, and may be obtained through a limited number of experiments or a limited number of computer simulations, and is not specifically limited here.

[0048] Specifically, in the cleaning mode, the oxygen concentration sensor 8 is used to detect the oxygen concentration of the exhaust gas. When the concentration is higher than the preset concentration threshold, it means that the exhaust gas contains more oxygen and the cleaning may not be sufficient. When the concentration is lower than the preset concentration threshold, it means that the cylinder cleaning is relatively sufficient. At this time, it can be determined that the cleaning is completed and the cleaning is stopped.

[0049] Optionally, in some embodiments, when using a compression pump to spray a cleaning agent into the engine cylinder for cleaning, it also includes: using a flow meter to obtain the flow of the cleaning agent, and obtaining the flow rate of the cleaning agent based on the inlet valve area and the flow rate, and determining the pressure of the compression pump based on the flow rate of the cleaning agent.

[0050] Specifically, in the embodiment of the present application, a flow meter 2 is installed in the pipeline after the compression element 1. The flow rate measured by the flow meter 2 and the inlet valve area can be used to calculate the flow rate of the gas or liquid when it is sprayed into the cylinder to evaluate the scouring force of the gas or liquid on the combustion chamber, and the scouring force of the combustion chamber can be adjusted by controlling the compression element 1.

[0051] In some embodiments, the embodiments of the present application can obtain a comparison table of flow rate and pressure of the compression pump through pre-testing to determine the pressure of the compression pump according to the flow rate of the cleaning agent.

[0052] Optionally, in some embodiments, after the oxygen concentration is lower than a preset concentration threshold, the method further includes: using a sewage pump to discharge the cleaned detergent from a sewage valve port.

[0053] Specifically, during the cleaning process, the gas is automatically discharged from the drain valve 5, and the unvolatile liquid will remain at the low point of the cylinder 4. When the liquid in the cylinder 4 gradually increases, the liquid covers the combustion chamber, and the cleaning effect is reduced or completely ineffective. At this time, an air pump is needed to blow air into the cylinder to help the liquid vaporize and be discharged from the drain valve. After the cleaning mode is completed, start the drain pump to quickly discharge the cleaned gas or solvent.

[0054] Optionally, in some embodiments, when the oxygen concentration is lower than a preset concentration threshold, the method further includes: generating a cleaning completion reminder instruction, and providing a reminder based on the cleaning completion reminder instruction.

[0055] Specifically, when the oxygen concentration is lower than a preset concentration threshold, the embodiment of the present application can determine that the cylinder cleaning is relatively sufficient, stop cleaning, and generate a cleaning completion reminder instruction, for example, generate an "engine cleaning completed" reminder instruction, and remind through the vehicle speaker, or control the vehicle LED lights to flash, to remind the user that the cleaning is complete, thereby improving the user experience.

[0056] In order to enable relevant technical personnel in the field to further understand the engine cleaning method of the embodiment of the present application, it is explained below in conjunction with specific embodiments.

[0057] Judgment steps: First, the EUC module of the vehicle determines whether the engine is in a shutdown state.

[0058] Preparation steps: After making sure that the engine is in the shutdown state, first seal the engine intake and exhaust pipes, and then open the inlet valve and drain valve.

[0059] Cleaning steps: Turn on the air intake pump or hydraulic pump to spray clean gas or volatile organic solvent from the outside into the combustion chamber to clean the combustion chamber. At this time, the cleaning mode is entered.

[0060] During the cleaning process, the gas is automatically discharged from the cleaning outlet, and the unvolatile liquid will remain at the low point of the cylinder. As the liquid in the cylinder gradually increases, the liquid gradually covers the surface of the combustion chamber, and the cleaning effect decreases or has no effect at all. At this time, an air pump is needed to blow air into the cylinder to help the liquid vaporize and be discharged from the drain valve.

[0061] During the cleaning process, the oxygen concentration of the exhaust gas is detected using an oxygen concentration sensor. When the concentration is higher than the preset concentration threshold, it means that the exhaust gas contains more oxygen and the cleaning may not be sufficient. When the concentration is lower than the preset concentration threshold, it means that the cylinder cleaning is relatively sufficient.

[0062] During the cleaning process, the flow rate measured by the flow meter and the area of ​​the cleaning inlet set in advance can be used to calculate the flow rate of the gas or liquid when it is sprayed into the cylinder to evaluate the flushing force on the combustion chamber. The flushing force of the combustion chamber can be adjusted by controlling the intake pump or hydraulic pump through the control module.

[0063] Drainage step: When the cleaning step is completed, the drainage pump is started through the control module to quickly discharge the cleaned gas or solvent.

[0064] According to the engine cleaning method proposed in the embodiment of the present application, it is determined whether the engine cleaning instruction is received; when the engine cleaning instruction is received and the vehicle is in a shutdown state, the engine's air intake and air outlet pipes are blocked, and the air intake valve and the sewage valve are opened, and the cleaning agent is sprayed into the air intake valve for cleaning by a compression pump; the oxygen concentration at the outlet of the engine cylinder is obtained by a concentration sensor, and if the oxygen concentration is lower than the preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped. In this way, the problem of carbon deposits in the engine combustion chamber, which leads to reduced engine thermal efficiency and affects the reliability and economy of the engine, is solved, and carbon deposits can be cleaned without disassembling the engine, avoiding engine losses caused by disassembling the engine, and having an efficient carbon deposit cleaning effect.

[0065] Next, the engine cleaning device proposed according to the embodiment of the present application is described with reference to the accompanying drawings.

[0066] Figure 3 It is a block diagram of a cleaning device for an engine according to an embodiment of the present application.

[0067] The engine is provided with an engine cleaning device, which includes a compressor, a flow meter, an intake valve, a cylinder, a drain valve, a drain pump, a concentration sensor and a drain pipe. The intake valve is connected to the cylinder inlet, the drain valve is connected to the cylinder outlet, the drain valve is connected to one end of the drain pipe, and the other end of the drain pipe is connected to the outside of the vehicle. Figure 3 As shown, the cleaning device 10 of the engine includes: a judgment module 100, a cleaning module 200 and a determination module 300.

[0068] The determination module 100 is used to determine whether an engine cleaning instruction is received.

[0069] The cleaning module 200 is used to block the engine's air intake and air outlet pipes, open the air intake valve and the sewage valve, and use a compression pump to spray a cleaning agent into the air intake valve for cleaning when receiving an engine cleaning instruction and the vehicle is in a stopped state.

[0070] The determination module 300 is used to obtain the oxygen concentration at the outlet of the engine cylinder by using a concentration sensor. If the oxygen concentration is lower than a preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped.

[0071] Optionally, in some embodiments, when a cleaning agent is sprayed into the engine cylinder for cleaning using a compression pump, the cleaning module 200 further includes: a determination unit.

[0072] The determination unit is used to obtain the flow rate of the detergent using a flow meter, obtain the flow rate of the detergent according to the inlet valve area and the flow rate, and determine the pressure of the compression pump according to the flow rate of the detergent.

[0073] Optionally, in some embodiments, after the oxygen concentration is lower than a preset concentration threshold, the determination module 300 further includes: a sewage discharge unit.

[0074] The sewage discharge unit is used to discharge the cleaned detergent from the sewage discharge valve port by means of a sewage discharge pump.

[0075] Optionally, in some embodiments, when the oxygen concentration is lower than a preset concentration threshold, the determination module 300 further includes: a reminder unit.

[0076] The reminder unit is used to generate a cleaning completion reminder instruction and to make a reminder based on the cleaning completion reminder instruction.

[0077] It should be noted that the above explanation of the engine cleaning method embodiment is also applicable to the engine cleaning device of this embodiment, which will not be repeated here.

[0078] According to the engine cleaning device proposed in the embodiment of the present application, it is determined whether the engine cleaning instruction is received; when the engine cleaning instruction is received and the vehicle is in a shutdown state, the engine's air intake pipe and air outlet pipe are blocked, and the air intake valve and the sewage valve are opened, and the cleaning agent is sprayed into the air intake valve for cleaning by a compression pump; the oxygen concentration at the outlet of the engine cylinder is obtained by a concentration sensor, and if the oxygen concentration is lower than the preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped. In this way, the problem of carbon deposits in the engine combustion chamber, which leads to reduced engine thermal efficiency and affects the reliability and economy of the engine, is solved, and carbon deposits can be cleaned without disassembling the engine, avoiding engine losses caused by disassembly, and having an efficient carbon deposit cleaning effect.

[0079] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device may include:

[0080] Memory 401 , processor 402 , and a computer program stored in the memory 401 and executable on the processor 402 .

[0081] When the processor 402 executes the program, the engine cleaning method provided in the above embodiment is implemented.

[0082] Furthermore, the electronic device further comprises:

[0083] The communication interface 403 is used for communication between the memory 401 and the processor 402 .

[0084] The memory 401 is used to store computer programs that can be executed on the processor 402 .

[0085] The memory 401 may include a high-speed RAM (Random Access Memory) memory, and may also include a non-volatile memory, such as at least one disk memory.

[0086] If the memory 401, the processor 402 and the communication interface 403 are implemented independently, the communication interface 403, the memory 401 and the processor 402 can be connected to each other through a bus and communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0087] Optionally, in a specific implementation, if the memory 401, the processor 402 and the communication interface 403 are integrated on a chip, the memory 401, the processor 402 and the communication interface 403 can communicate with each other through an internal interface.

[0088] The processor 402 may be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

[0089] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, which implements the above engine cleaning method when executed by a processor.

[0090] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0091] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0092] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0093] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array, a field programmable gate array, etc.

[0094] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0095] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for cleaning an engine, characterized in that: The engine is provided with an engine cleaning device, which includes a compressor, a flow meter, an intake valve, a cylinder, a drain valve, a drain pump, a concentration sensor and a drain pipe, wherein the intake valve is connected to the cylinder inlet, the drain valve is connected to the cylinder outlet, the drain valve is connected to one end of the drain pipe, and the other end of the drain pipe is connected to the outside of the vehicle, wherein the method includes: Determine whether to receive an engine cleaning instruction; When receiving an engine cleaning instruction and the vehicle is in a stopped state, the air inlet pipe and the air outlet pipe of the engine are blocked, the air inlet valve and the sewage valve are opened, and the cleaning agent is sprayed into the air inlet valve by using the compression pump for cleaning; The concentration sensor is used to obtain the oxygen concentration at the cylinder outlet of the engine. If the oxygen concentration is lower than a preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped.

2. The method according to claim 1, characterized in that When the cleaning agent is sprayed into the engine cylinder by the compression pump for cleaning, the method further comprises: The flow meter is used to obtain the flow rate of the cleaning agent, and the flow rate of the cleaning agent is obtained according to the inlet valve area and the flow rate, and the pressure of the compression pump is determined according to the flow rate of the cleaning agent.

3. The method according to claim 1, characterized in that After the oxygen concentration is lower than a preset concentration threshold, the method further includes: The sewage pump is used to discharge the cleaned detergent from the sewage valve port.

4. The method according to claim 1, characterized in that: When the oxygen concentration is lower than a preset concentration threshold, the method further includes: A cleaning completion reminder instruction is generated, and a reminder is given based on the cleaning completion reminder instruction.

5. An engine cleaning device, characterized in that: The engine is provided with an engine cleaning device, which includes a compressor, a flow meter, an intake valve, a cylinder, a drain valve, a drain pump, a concentration sensor and a drain pipe, wherein the intake valve is connected to the cylinder inlet, the drain valve is connected to the cylinder outlet, the drain valve is connected to one end of the drain pipe, and the other end of the drain pipe is connected to the outside of the vehicle, wherein the engine cleaning device includes: A judgment module, used to judge whether an engine cleaning instruction is received; A cleaning module, used for blocking the air inlet pipe and the air outlet pipe of the engine, opening the air inlet valve and the drain valve, and using the compression pump to spray the cleaning agent into the air inlet valve for cleaning when receiving the engine cleaning instruction and the vehicle is in a stopped state; The determination module is used to obtain the oxygen concentration at the cylinder outlet of the engine by using the concentration sensor. If the oxygen concentration is lower than a preset concentration threshold, it is determined that the cleaning is completed and the cleaning is stopped.

6. The device according to claim 5, characterized in that When the cleaning agent is sprayed into the engine cylinder by the compression pump for cleaning, the cleaning module further includes: The determination unit is used to obtain the flow rate of the detergent using the flow meter, obtain the flow rate of the detergent according to the inlet valve area and the flow rate, and determine the pressure of the compression pump according to the flow rate of the detergent.

7. The device according to claim 5, characterized in that After the oxygen concentration is lower than a preset concentration threshold, the determination module further includes: The sewage discharge unit is used to discharge the cleaned detergent from the sewage discharge valve port by using the sewage discharge pump.

8. The device according to claim 5, characterized in that When the oxygen concentration is lower than a preset concentration threshold, the determination module further includes: The reminder unit is used to generate a cleaning completion reminder instruction and to make a reminder based on the cleaning completion reminder instruction.

9. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the engine cleaning method according to any one of claims 1 to 4.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the engine cleaning method as described in any one of claims 1 to 4.

Images