CN116378822A

CN116378822A - Self-cleaning method of spark plug and electronic equipment

Info

Publication number: CN116378822A
Application number: CN202310587018.5A
Authority: CN
Inventors: 赵振兴
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-07-04

Abstract

The application is applicable to the technical field of engines and provides a self-cleaning method of a spark plug and electronic equipment. The self-cleaning method of the spark plug comprises the following steps: when the hybrid power equipment is in a target power mode, acquiring a current cooling circulation mode of an engine cooling system of the hybrid power equipment; the hybrid power equipment is provided with a hybrid system, the hybrid system comprises a fuel engine, a battery and a motor, the spark plug is used for igniting fuel in a cylinder of the fuel engine, and when the hybrid power equipment is in the target power mode, the fuel engine generates power to the battery and the motor is driven by the battery to work; and if the cooling circulation mode is a large circulation mode, performing cylinder breaking treatment on the cylinder to clean carbon deposition on the spark plug in the cylinder. The embodiment of the application can improve the reliability of carbon deposition cleaning of the spark plug.

Description

Self-cleaning method of spark plug and electronic equipment

Technical Field

The application belongs to the technical field of engines, and particularly relates to a self-cleaning method of a spark plug and electronic equipment.

Background

With the increasing severity of global environmental problems, emission reduction is an important task for the development of the automobile industry. The hybrid electric vehicle is used as a novel vehicle product, not only can achieve the effect of reducing oil consumption, but also has the effect of reducing emission, so that the hybrid electric vehicle is one of main development directions of the vehicle industry.

According to the performance characteristics of a hybrid system, the existing hybrid electric vehicle can select a section of section with smaller fuel consumption rate as an operation section of a fuel engine according to the rotating speed and the torque. If the fuel engine does not work in the operation interval, the torque is regulated by the power generation and the power assistance of the motor, so that the fuel engine works in the operation interval, and the aims of reducing emission and oil consumption are achieved.

The fuel engine of the hybrid system is also provided with a spark plug. Spark plugs are an important element of ignition of a fuel engine and can be used to ignite fuel in a cylinder to generate electricity. One failure condition of a spark plug is carbon build-up in the plug head. Carbon deposition can affect the quality of spark plug ignition. Therefore, cleaning the spark plug is a necessary step to ensure proper operation of the hybrid system.

In the related art, in the self-cleaning process of the spark plug, the temperature in the cylinder is not stable enough, carbon deposition on the spark plug is difficult to clean, and the self-cleaning reliability is low.

Disclosure of Invention

The embodiment of the application provides a self-cleaning method of a spark plug and electronic equipment, which can solve the problem of lower self-cleaning reliability of the spark plug in the related technology.

A first aspect of an embodiment of the present application provides a self-cleaning method for a spark plug, including: when the hybrid power equipment is in a target power mode, acquiring a current cooling circulation mode of an engine cooling system of the hybrid power equipment; the hybrid power equipment is provided with a hybrid system, the hybrid system comprises a fuel engine, a battery and a motor, the spark plug is used for igniting fuel in a cylinder of the fuel engine, and when the hybrid power equipment is in the target power mode, the fuel engine generates power to the battery and the motor is driven by the battery to work; and if the cooling circulation mode is a large circulation mode, performing cylinder breaking treatment on the cylinder to clean carbon deposition on the spark plug in the cylinder.

A second aspect of the embodiments of the present application provides a self-cleaning device for a spark plug, including: an acquisition unit for acquiring a current cooling cycle mode of an engine cooling system of a hybrid power device when the hybrid power device is in a target power mode; the hybrid power equipment is provided with a hybrid system, the hybrid system comprises a fuel engine, a battery and a motor, the spark plug is used for igniting fuel in a cylinder of the fuel engine, and when the hybrid power equipment is in the target power mode, the fuel engine generates power to the battery and the motor is driven by the battery to work; and the self-cleaning unit is used for performing cylinder breaking treatment on the cylinder if the cooling circulation mode is large circulation so as to clean carbon deposition on the spark plug in the cylinder.

A third aspect of the embodiments of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the self-cleaning method of a spark plug described above when the computer program is executed.

A fourth aspect of the present embodiments provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the above-described self-cleaning method of a spark plug.

A fifth aspect of the embodiments of the present application provides a computer program product for causing an electronic device to perform the above-described method of self-cleaning a spark plug when the computer program product is run on the electronic device.

In the embodiment of the application, when the hybrid power equipment is in the target power mode, the current cooling circulation mode of the engine cooling system is obtained, and when the cooling circulation mode is a large circulation mode, cylinder breaking treatment is carried out on the cylinder so as to clean carbon deposition on the spark plug in the cylinder, on one hand, when the hybrid power equipment is in the target power mode, the fuel engine generates electricity to the battery and is driven by the battery to work, and at the moment, if the motor does not need more power, the fuel engine can be used for charging the battery, the fuel engine is prevented from being stopped and burnt, and the temperature in the cylinder is further ensured not to be suddenly lowered due to the stop and burning; on the other hand, when the cooling circulation mode is large circulation, the temperature in the cylinder is relatively stable; therefore, when the cylinder is broken, the temperature in the cylinder can be stably kept above the temperature capable of cleaning carbon deposition, and the self-cleaning reliability is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of an implementation of a self-cleaning method for a spark plug according to an embodiment of the present disclosure;

FIG. 2 is a schematic flow chart of a self-cleaning method according to an embodiment of the present application;

fig. 3 is a schematic diagram of a specific implementation flow of self-cleaning of a hybrid electric vehicle according to an embodiment of the present application;

FIG. 4 is a schematic view of a self-cleaning apparatus for a spark plug according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be protected herein.

According to the performance characteristics of the hybrid system, the existing hybrid electric vehicle can select a section of section with smaller fuel consumption rate as an operation section of a fuel engine in the hybrid system according to the rotating speed and the torque. If the fuel engine does not work in the operation interval, the torque can be regulated through the power generation and the power assistance of the motor, so that the fuel engine works in the operation interval, and the aims of reducing emission and oil consumption are achieved.

The fuel engine of the hybrid system is also provided with a spark plug. Spark plugs are an important element of ignition of a fuel engine and can be used to ignite fuel in a cylinder to generate electricity. One failure condition of a spark plug is carbon build-up in the plug head. Carbon deposition can affect the ignition quality of the spark plug, so cleaning the spark plug is a necessary step for ensuring the normal operation of the hybrid system.

Hybrid power plants are typically configured with a plurality of power modes:

(1) in the pure electric driving mode, the fuel engine does not work at the moment and the battery drives the motor to work completely;

(2) the fuel engine drives a power generation mode, and at the moment, the fuel engine is used for generating power for a battery and the battery drives a motor to work;

(3) the fuel engine independent driving mode is that the battery and the motor do not work at the moment, and the fuel engine directly drives the transmission system to work;

(4) In the parallel mode, the fuel engine drives the transmission system, and the battery supplies power to the motor, namely the fuel engine and the battery and the generator work in parallel.

In the related art, the current power mode of the hybrid power equipment and the cooling circulation mode of the cooling system are not considered in the self-cleaning process of the spark plug, so that the temperature in the cylinder cannot be kept above the temperature capable of cleaning carbon deposit, the carbon deposit on the spark plug is difficult to clean, and the reliability of self-cleaning is low.

In view of the above, the application provides a self-cleaning method of a spark plug, which can perform self-cleaning of the spark plug when a hybrid power device is in a specific power mode and a specific cooling circulation mode, so that the stability of the temperature in a cylinder is improved, and the self-cleaning reliability of the spark plug is further improved.

It should be appreciated that the embodiments of the present application have been completed based on the above findings and analysis, which are not prior art, but are to be considered part of the contribution of the present application to the prior art.

In order to illustrate the technical solution of the present application, the following description is made by specific examples.

Fig. 1 shows a schematic implementation flow chart of a self-cleaning method of a spark plug according to an embodiment of the present application, where the method may be applied to an electronic device, and may be applied to a situation where the self-cleaning reliability of the spark plug needs to be improved.

The hybrid power equipment can be provided with a hybrid system and can complete specific work under the drive of the hybrid system. For example, the hybrid power plant may be a hybrid vehicle, a hybrid chemical production plant, or other plant that operates based on power provided by a hybrid system.

In embodiments of the present application, the hybrid system, i.e., the hybrid system, may include a fuel engine, a battery, and an electric motor. The battery can transmit electric energy to the motor, so that the motor drives the hybrid power device to work. The fuel engine can independently drive the hybrid power equipment to work and can also generate electricity for the battery, and the hybrid power equipment is driven by the motor to work. A spark plug may be provided within the fuel engine and may be used to ignite fuel in a cylinder of the fuel engine. The heat energy generated by combustion is converted into kinetic energy, and the hybrid power equipment can be driven to work.

Specifically, the self-cleaning method of the spark plug may include the following steps S101 to S102.

Step S101, when the hybrid power device is in the target power mode, a current cooling cycle mode of an engine cooling system of the hybrid power device is acquired.

In the embodiment of the application, the hybrid power device may acquire the target power mode set by the user, or the hybrid power device may enter a default power mode when powered on, and the default power mode is used as the target power mode, which is not limited in the application.

When the hybrid power plant is in the target power mode, the fuel engine may generate power to the battery and operate by the battery-driven motor. That is, the target power mode is the "fuel engine driven power generation mode" of the aforementioned four power modes.

In some embodiments, a user may set an "unlikely to suddenly stop ignition" operating strategy for the hybrid system when the hybrid device is in the target power mode. Specifically, when the hybrid power plant is in the target power mode, the fuel engine may be controlled to charge the battery if the required power of the hybrid power plant is below the power threshold. That is, when less power is required by the motor, the excess power of the fuel engine may be used to recharge the battery.

The power threshold may be set according to the actual situation.

For example, when the hybrid power vehicle brakes, stalls or decelerates in the target power mode, the required power of the hybrid power vehicle is reduced and is lower than the power threshold, and at this time, the fuel engine generates redundant power according to the original fuel consumption, so that the fuel engine can be controlled to charge the battery by utilizing the redundant power, compared with the prior art, the fuel consumption is directly reduced and even the fuel is directly stopped, the temperature in the cylinder is not easy to drop suddenly due to the stop, the working condition of the fuel engine is not easy to change greatly due to the running condition of the hybrid power vehicle, and the exhaust temperature of the fuel engine is not easy to have the problems of suddenly high and suddenly low.

At this time, the hybrid device may acquire the current cooling cycle pattern of the engine cooling system.

The engine cooling system is used for timely radiating out part of heat absorbed by the heated component (such as a cylinder), so that the mixed system is ensured to work at the most suitable temperature.

Specifically, the engine cooling system can be a water cooling system, the water cooling system can utilize a water pump to enable cooling liquid to circulate in the cooling system, and the cooling liquid can absorb heat when passing through the air cylinder, so that the air cylinder is prevented from being burnt out. The cooling cycle mode of the water cooling system can be divided into a small cycle and a large cycle. The small circulation is circulation flow without passing through the radiator when the temperature of the cooling liquid is low. The water temperature increases gradually in small cycles until a large cycle is started when the temperature threshold is reached. The large circulation is circulation flow through the radiator when the temperature of the coolant water is high, and the temperature of the coolant water can be reduced at this time. By small and large circulation, the temperature of the coolant can be maintained at a specific temperature, so that the mixing system is not overcooled or overheated.

The temperature threshold may be adjusted according to practical situations, and may be set to 80 ℃. Accordingly, by detecting whether the water temperature of the coolant reaches the temperature threshold, the current cooling cycle mode of the engine cooling system can be confirmed. When the water temperature is greater than the temperature threshold, the current cooling cycle mode may be confirmed to be a large cycle.

Of course, since there is a certain time rule in the operation of the large and small cycles, for example, after the small cycle is operated for N minutes, the current cooling cycle mode of the engine cooling system can be determined according to the operation time of the engine cooling system. Wherein N is greater than 0.

Specifically, the power-up time may be recorded after the hybrid device is powered up. The generator cooling system typically first performs a small cycle, and therefore, if the time difference (i.e., the accumulated duration) between the current time and the power-up time is greater than N, it may be determined that the current cooling cycle mode of the engine cooling system is a large cycle.

In some embodiments, if the cycle period of the large cycle is M minutes (M is greater than N), and the small cycle is performed for N minutes and then the large cycle is performed in each cycle period, if the time difference (i.e., the accumulated duration) between the current time and the power-on time is between am+n and (a+1) M, it may be determined that the current cooling cycle mode of the engine cooling system is the large cycle. Wherein a is a positive integer greater than or equal to 0, and represents the occurrence number of the cycle period.

It should be understood that the present application is not limited in the manner in which the current cooling cycle pattern is obtained.

In step S102, if the cooling cycle mode is the large cycle, the cylinder is cut off to clean carbon deposit on the spark plug in the cylinder.

In the embodiment of the application, if the current cooling cycle mode is a small cycle, the temperature in the cylinder may be lower, for example, the temperature in the cylinder may not reach the temperature required for removing carbon deposit after the cylinder breaking process when the temperature in the cylinder is just started to operate, especially when the temperature in the outside is lower.

The cylinder deactivation process may refer to, among other things, the fuel supply or ignition of the cylinders being deactivated.

In some embodiments, the cylinder breaking process may refer to controlling the cylinder to stop spraying fuel, when the cylinder stops spraying fuel, the fuel engine will compress air, and according to the principle of equal volume and equal pressure, the air will generate high heat after being compressed, so that the temperature is higher than the temperature at which carbon deposit on the spark plug is burnt, and further the cleaning of carbon deposit is realized. Wherein the temperature at which carbon deposits on the spark plug are burned off may be greater than or equal to 450 ℃.

In addition, as the fuel particles sprayed out of the fuel engine are adsorbed when carbon deposition is encountered when flowing in the combustion chamber, when the fuel is stopped to be sprayed by the cylinder, no fuel particles can be adsorbed by the carbon deposition of the spark plug, and the originally deposited carbon deposition can be dried and then oxidized and burnt. Therefore, the control cylinder stop injection fuel oil has better cleaning effect on carbon deposition of a dry soot type or carbon deposition of a wet soot type.

In other embodiments, the cylinder breaking process may also refer to breaking an ignition coil that provides ignition energy to the spark plug, where the fuel engine also compresses the intake air to generate high heat, so that the temperature is greater than the temperature at which carbon deposits on the spark plug are burned off, and further cleaning of the carbon deposits is achieved.

For further temperature stability, as shown in fig. 2, in some embodiments, the step S102 may specifically include the following steps S201 to S202.

In step S201, if the cooling cycle mode is the large cycle, the state of charge of the battery is detected.

Wherein State Of Charge (SOC) may be used to characterize the current remaining Charge Of the battery. The hybrid power device may acquire the state of charge of the battery through a battery management system (Battery Management System, BMS), and may estimate the state of charge of the battery through battery parameters such as battery temperature, battery charge-discharge voltage, battery charge-discharge current, and the like.

And step S202, if the difference value between the charge state and the charge state upper limit of the battery is larger than a difference value threshold value, cylinder breaking processing is carried out on the cylinder.

In the embodiment of the present application, the upper limit of the state of charge of the battery is an upper limit value that can be reached after the battery is charged, and may be set according to the model of the battery, the charge-discharge curve of the battery, and the like, for example, considering that the charging is performed after the state of charge is higher than 80%, the charging effect is relatively poor, and the upper limit of the state of charge may be set to 80%. When the state of charge of the battery reaches the upper state of charge limit, the battery will stop charging.

In the embodiments of the present application, the difference between the state of charge and the upper limit of the state of charge of the battery is the margin of charge. For example, when the current state of charge of the battery is 70% and the upper limit of the state of charge is 80%, the difference of 10% is the margin of charging, and the battery can be charged by 10%.

If the difference between the state of charge and the upper limit of the state of charge of the battery is low, the state of charge of the battery may reach the upper limit of the state of charge of the battery during self-cleaning, at which time the battery stops charging. As is apparent from the foregoing description of the target functional mode, if the power demand of the hybrid device is low and the battery does not need to be charged at this time, the fuel engine may be stopped, and the cylinder temperature may drop suddenly. To avoid this, the present application may set a difference threshold. If the difference between the state of charge and the upper limit of the state of charge of the battery is greater than a difference threshold, the self-cleaning duration is less than the charging duration required by the battery to reach the upper limit of the state of charge, and cylinder breaking treatment can be performed on the cylinder.

The specific value of the difference threshold may be set according to practical situations, for example, set to 2%. By way of example, assuming that the charge duration required to charge the battery by 2% is equal to the duration of self-cleaning, if the current state of charge is 79.5%, it is possible that the hybrid device has just entered self-cleaning mode and the fuel engine has been shut down because the battery has reached the upper state of charge limit. If the current state of charge is 77.5%, after the hybrid power equipment enters a self-cleaning mode, the fuel engine is not easy to flameout due to the fact that the battery reaches the upper limit of the state of charge before self-cleaning is completed.

By the mode shown in fig. 2, it is possible to ensure that the battery can be charged in the process of self-cleaning of the spark plug, and further, the stability of the temperature in the cylinder can be ensured.

Considering that the ignition plug generates carbon deposition for a plurality of reasons, such as poor quality of added fuel, frequent low-temperature start, no carbon deposition prevention measure of the ignition plug, and the like, the generation of carbon deposition needs a certain time, so that the hybrid power equipment can detect whether the hybrid power system meets the cleaning cycle condition before the cylinder is subjected to the cylinder breaking treatment.

It should be understood that the detection of whether the hybrid system satisfies the cleaning cycle condition may be performed before step S101, that is, after the hybrid system is detected to satisfy the cleaning cycle condition, steps S101 to 102 may be performed. The detection of whether the hybrid system satisfies the cleaning cycle condition may also be performed before the cylinder is ready to be subjected to the cylinder breaking process, that is, whether the hybrid system satisfies the cleaning cycle condition may be detected after the power mode, the cooling cycle mode, and the state of charge of the hybrid device are confirmed.

Specifically, in some embodiments, the hybrid power device may acquire the working data, and if the working data reaches the corresponding data threshold, confirm that the hybrid power system satisfies the cleaning cycle condition.

The operating data may be used to characterize an accumulated amount of soot on the spark plug, and may include at least one of device data for the hybrid device and engine data for the hybrid system, for example. The data threshold is a threshold value for determining whether the accumulated amount of carbon deposit on the spark plug is excessive. It should be understood that when the working data does not reach the corresponding data threshold, it indicates that the accumulated amount of carbon deposit on the spark plug is lower, and the influence of carbon deposit on ignition energy is smaller, at this time, the self-cleaning of the spark plug can be omitted, and the normal operation of the hybrid system is ensured, until the working data reaches the corresponding data threshold, it indicates that the accumulated amount of carbon deposit on the spark plug is higher, and the influence of carbon deposit on ignition energy is larger, at this time, the self-cleaning of the spark plug can be performed.

In some embodiments, the device data may be mileage of the hybrid device. If the mileage is greater than the mileage threshold, it may be confirmed that the hybrid system satisfies the cleaning cycle condition. The mileage threshold may be set according to practical situations, for example, may be set to 2 km, 6 km, etc. That is, the hybrid device may self-clean every 2 km or every 6 km of movement.

In other embodiments, the device data may be an operating duration of the hybrid device. The engine data may be an operating duration of the hybrid system. If the running time of the hybrid power equipment or the running time of the hybrid system is greater than the time threshold, the hybrid system can be confirmed to meet the cleaning cycle condition. The time period threshold may be set according to practical situations, for example, 7 days, 15 days, and the like. That is, the hybrid power plant or hybrid system may be self-cleaning once every 7 or 15 days of operation.

In other embodiments, the device data may also be the number of times the hybrid device is cold started. If the number of times is greater than the number of times threshold, it may be confirmed that the hybrid system satisfies the cleaning cycle condition. The frequency threshold may be set according to practical situations, for example, 10 times, 20 times, etc. That is, the hybrid device may perform self-cleaning once every 10 or 20 times of low-temperature start-up for operation.

In the embodiment of the application, whether the hybrid system meets the cleaning cycle condition is confirmed by acquiring the mileage, the operation time, the low-temperature starting times and other working data, and the additional sensor is not required to be arranged in the hybrid system to collect the accumulated amount of carbon deposition, so that the cost is reduced to a certain extent.

In other embodiments, the hybrid device may directly detect the accumulated amount of soot.

For example, the hybrid device may determine, through an image recognition algorithm, a region on the spark plug where soot is present, the more regions or areas where soot is present, the higher the cumulative amount of soot. This application is not limited thereto.

In general, a fuel engine may include a plurality of cylinders, and thus, the cylinder breaking process may include: and controlling each cylinder in the fuel engine to stop spraying fuel in sequence. The duration of each fuel stop may be set according to the actual situation, for example, 30 seconds, 90 seconds, etc.

Specifically, the hybrid power equipment can acquire the working sequence of each cylinder in the fuel engine, and control each cylinder in the fuel engine to stop spraying fuel in sequence according to the working sequence.

Taking a 4-cylinder machine as an example, fuel injection stopping for 30 seconds can be performed for each cylinder according to a working sequence (sequence of 1-3-4-2). After each cylinder is stopped to spray fuel oil, the self-cleaning is confirmed to be finished. The spark plugs of one cylinder are self-cleaned each time, so that the influence on the normal operation of the hybrid system can be reduced. Moreover, the fuel injection stopping mode is adopted in the target operation mode, so that the influence on the operation of the hybrid system is low, and the method is acceptable.

In some embodiments, after controlling each cylinder to stop spraying fuel oil in turn, if the target cylinder in the fuel engine stops spraying fuel oil and abnormally stops self-cleaning, the hybrid power equipment can record the cylinder information of the target cylinder, and when the next hybrid power equipment is in the target power mode and the cooling circulation mode is a large circulation, according to the cylinder information, each cylinder in the fuel engine is controlled to stop spraying fuel oil in turn from the target cylinder.

The abnormal stop self-cleaning may refer to a cylinder flameout (such as a hybrid vehicle flameout) or other situations where the self-cleaning of the spark plug is stopped. The target cylinder, i.e. the cylinder currently stopping injecting fuel, can be any cylinder in the fuel engine. The cylinder information may be the number, location, or other information that can identify the cylinder of the target cylinder.

That is, if the target cylinder in the fuel engine stops injecting fuel abnormally and stops self-cleaning, the hybrid power device can record the cylinder information of the target cylinder, and control each cylinder in the fuel engine to stop injecting fuel sequentially from the target cylinder when the next time the hybrid power system meets the cleaning cycle condition.

For example, the 4-cylinder machine can stop spraying fuel for 30 seconds every cylinder according to the sequence of 1-3-4-2, if the 1 cylinder and the 3 cylinder complete self-cleaning and suddenly flameout when the 4 cylinders are in a flameout state, the self-cleaning can be directly started from the 4 cylinders when the condition of self-cleaning is met next time.

In some embodiments, the hybrid device may also detect the cleanliness of the soot on the spark plug after the cylinder is deactivated.

In particular, in some embodiments, the hybrid device may detect the ignition energy of the spark plug as the soot affects the ignition energy of the spark plug, the lower the ignition energy, the lower the soot cleanliness. In other embodiments, the hybrid power device may also determine, through an image recognition algorithm, a region on the spark plug where carbon deposition exists, where the greater the region or the greater the area, the lower the degree of cleanliness of the carbon deposition.

When the cleaning degree does not reach the degree threshold, the carbon deposition self-cleaning is not completed, and the cylinder breaking treatment can be continued at the moment. When the cleaning degree reaches the degree threshold, the carbon deposition self-cleaning is finished, the cylinder breaking treatment can be stopped at the moment, whether the mixing system meets the cleaning period condition is detected again, and the periodic carbon deposition self-cleaning is further realized.

Referring to fig. 3, a hybrid power device is taken as an example of a hybrid power vehicle, and a self-cleaning method provided in the present application is described. When the hybrid electric vehicle enters the target power mode, the cooling circulation mode of the engine cooling system is a large circulation mode, and the hybrid electric vehicle can enter the self-cleaning mode. By detecting the charge state of the battery and the mileage of the hybrid electric vehicle, if the difference between the charge state and the upper limit of the charge state is more than 2%, and the mileage reaches 2 km, self-cleaning is started, fuel is stopped and sprayed in a plurality of cylinders in sequence during self-cleaning, each cylinder is stopped and sprayed with fuel for 30 seconds, and each cylinder is self-cleaned and then exits from the self-cleaning mode. If the self-cleaning is abnormally stopped, cylinder information of the target cylinder being self-cleaned when the self-cleaning is stopped may be recorded, and the self-cleaning may be directly started from the target cylinder when the self-cleaning mode is next entered.

It should be noted that, for the sake of simplicity of description, the foregoing method embodiments are all expressed as a series of combinations of actions, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order according to the present application.

Fig. 4 is a schematic structural diagram of a self-cleaning device 400 of a spark plug according to an embodiment of the present application, where the self-cleaning device 400 of a spark plug is configured on a hybrid power device.

Specifically, the self-cleaning apparatus 400 of the spark plug may include:

an acquisition unit 401, configured to acquire a current cooling cycle mode of an engine cooling system of a hybrid power device when the hybrid power device is in a target power mode; the hybrid power equipment is provided with a hybrid system, the hybrid system comprises a fuel engine, a battery and a motor, the spark plug is used for igniting fuel in a cylinder of the fuel engine, and when the hybrid power equipment is in the target power mode, the fuel engine generates power to the battery and the motor is driven by the battery to work;

And the self-cleaning unit 402 is used for performing cylinder breaking treatment on the cylinder to clean carbon deposition on the spark plug in the cylinder if the cooling circulation mode is a large circulation mode.

In some embodiments of the present application, the self-cleaning unit 402 described above may be used in particular: if the cooling circulation mode is a large circulation, detecting the charge state of the battery; and if the difference value between the state of charge and the upper limit of the state of charge of the battery is larger than a difference value threshold, performing cylinder breaking treatment on the cylinder.

In some embodiments of the present application, the self-cleaning device 400 of a spark plug may further comprise a detection unit, in particular for: detecting whether the hybrid system meets a cleaning cycle condition.

In some embodiments of the present application, the detection unit may be specifically configured to: acquiring working data, wherein the working data is used for representing the accumulated amount of carbon deposition on the spark plug; and if the working data meet the corresponding data threshold, confirming that the mixing system meets the cleaning cycle condition.

In some embodiments of the present application, the self-cleaning unit 402 described above may be used in particular: detecting the cleanliness of carbon deposit on the spark plug; and stopping cylinder breaking processing when the cleaning degree reaches a degree threshold value, and re-detecting whether the mixing system meets the cleaning cycle condition.

In some embodiments of the present application, when the hybrid power device is in the target power mode, if the required power of the hybrid power device is lower than the power threshold, the fuel engine is controlled to charge the battery.

In some embodiments of the present application, the above-described fuel engine may include a plurality of cylinders; the self-cleaning unit 402 described above may be used in particular: and controlling each cylinder in the fuel engine to stop spraying fuel in sequence.

In some embodiments of the present application, the self-cleaning unit 402 described above may be used in particular: if the target cylinder in the fuel engine stops spraying fuel, abnormally stopping self-cleaning, and recording cylinder information of the target cylinder; and when the hybrid power equipment is in the target power mode next time and the cooling circulation mode is the large circulation, controlling each cylinder in the fuel engine to stop spraying fuel in sequence according to the cylinder information from the target cylinder.

In some embodiments of the present application, the self-cleaning unit 402 described above may be used in particular: acquiring the acting sequence of each cylinder in the fuel engine; and controlling each cylinder in the fuel engine to stop spraying fuel in sequence according to the working sequence.

It should be noted that, for convenience and brevity, the specific operation of the self-cleaning apparatus 400 of the spark plug may refer to the corresponding process of the method described in fig. 1 to 3, and will not be described herein.

Fig. 5 is a schematic diagram of an electronic device according to an embodiment of the present application. Specifically, the electronic device 5 may include: a processor 50, a memory 51 and a computer program 52 stored in said memory 51 and executable on said processor 50, for example a self-cleaning program for a spark plug. The processor 50, when executing the computer program 52, implements the steps of the above-described self-cleaning method embodiment of each spark plug, such as steps S101 to S102 shown in fig. 1. Alternatively, the processor 50, when executing the computer program 52, performs the functions of the modules/units of the device embodiments described above, such as the functions of the acquisition unit 401 and the self-cleaning unit 402 shown in fig. 4.

The computer program may be divided into one or more modules/units which are stored in the memory 51 and executed by the processor 50 to complete the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing the specified functions, which instruction segments are used for describing the execution of the computer program in the electronic device.

For example, the computer program may be split into: an acquisition unit and a self-cleaning unit. The specific functions of each unit are as follows: an acquisition unit for acquiring a current cooling cycle mode of an engine cooling system of a hybrid power device when the hybrid power device is in a target power mode; the hybrid power equipment is provided with a hybrid system, the hybrid system comprises a fuel engine, a battery and a motor, the spark plug is used for igniting fuel in a cylinder of the fuel engine, and when the hybrid power equipment is in the target power mode, the fuel engine generates power to the battery and the motor is driven by the battery to work; and the self-cleaning unit is used for performing cylinder breaking treatment on the cylinder if the cooling circulation mode is large circulation so as to clean carbon deposition on the spark plug in the cylinder.

The electronic device may include, but is not limited to, a processor 50, a memory 51. It will be appreciated by those skilled in the art that fig. 5 is merely an example of an electronic device and is not meant to be limiting, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the electronic device may further include an input-output device, a network access device, a bus, etc.

The processor 50 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 51 may be an internal storage unit of the electronic device, such as a hard disk or a memory of the electronic device. The memory 51 may also be an external storage device of the electronic device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device. Further, the memory 51 may also include both an internal storage unit and an external storage device of the electronic device. The memory 51 is used for storing the computer program and other programs and data required by the electronic device. The memory 51 may also be used to temporarily store data that has been output or is to be output.

It should be noted that, for convenience and brevity of description, the structure of the electronic device may refer to a specific description of the structure in the method embodiment, which is not repeated herein.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/electronic device and method may be implemented in other manners. For example, the apparatus/electronic device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each method embodiment described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. A method of self-cleaning a spark plug, comprising:

when the hybrid power equipment is in a target power mode, acquiring a current cooling circulation mode of an engine cooling system of the hybrid power equipment; the hybrid power equipment is provided with a hybrid system, the hybrid system comprises a fuel engine, a battery and a motor, the spark plug is used for igniting fuel in a cylinder of the fuel engine, and when the hybrid power equipment is in the target power mode, the fuel engine generates power to the battery and the motor is driven by the battery to work;

And if the cooling circulation mode is a large circulation mode, performing cylinder breaking treatment on the cylinder to clean carbon deposition on the spark plug in the cylinder.

2. The method for self-cleaning a spark plug according to claim 1, wherein if the cooling cycle mode is a large cycle, the cylinder is subjected to a cylinder-breaking process, comprising:

if the cooling circulation mode is the large circulation, detecting the charge state of the battery;

and if the difference value between the state of charge and the upper limit of the state of charge of the battery is larger than a difference value threshold, performing cylinder breaking treatment on the cylinder.

3. The self-cleaning method of a spark plug according to claim 1, comprising, before said cylinder is subjected to a cylinder-breaking process:

detecting whether the hybrid system meets a cleaning cycle condition.

4. A method for self-cleaning a spark plug as claimed in claim 3, wherein said detecting whether said hybrid system satisfies a cleaning cycle condition comprises:

acquiring working data, wherein the working data is used for representing the accumulated amount of carbon deposition on the spark plug;

and if the working data reach the corresponding data threshold, confirming that the mixing system meets the cleaning cycle condition.

5. The method for self-cleaning a spark plug according to claim 3, further comprising, after said cylinder breaking process is performed on said cylinder:

detecting the cleanliness of carbon deposit on the spark plug;

and stopping cylinder breaking processing when the cleaning degree reaches a degree threshold value, and re-detecting whether the mixing system meets the cleaning cycle condition.

6. The self-cleaning method of a spark plug according to any one of claims 1 to 5, characterized in that when the hybrid device is in the target power mode, the fuel engine is controlled to charge the battery if the required power of the hybrid device is lower than a power threshold.

7. The self-cleaning method of a spark plug according to any one of claims 1 to 5, wherein said fuel engine includes a plurality of said cylinders;

the cylinder breaking treatment for the cylinder comprises the following steps:

and controlling each cylinder in the fuel engine to stop spraying fuel in sequence.

8. The method of self-cleaning a spark plug of claim 7, further comprising, after said controlling each of said cylinders in said fuel engine to sequentially stop fuel injection:

If the target cylinder in the fuel engine stops spraying fuel, abnormally stopping self-cleaning, and recording cylinder information of the target cylinder, wherein the target cylinder is any cylinder in the fuel engine;

and when the hybrid power equipment is in the target power mode next time and the cooling circulation mode is the large circulation, controlling each cylinder in the fuel engine to stop spraying fuel in sequence according to the cylinder information from the target cylinder.

9. The method of self-cleaning a spark plug of claim 7 wherein said controlling each of said cylinders in said fuel engine to sequentially stop injecting fuel includes:

acquiring the acting sequence of each cylinder in the fuel engine;

and controlling each cylinder in the fuel engine to stop spraying fuel in sequence according to the working sequence.

10. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the self-cleaning method of a spark plug according to any one of claims 1 to 9 when the computer program is executed.