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Method for judging service life of spark plug of engine

A determination method and spark plug technology, applied to spark plugs, electrical components, circuits, etc., can solve problems such as affecting the normal operation of spark plugs and increasing spark breakdown voltage, achieving accurate and timely updates, avoiding waste, and facilitating updates.

Active Publication Date: 2022-03-25
上海新动力汽车科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The spark plug gap refers to the gap distance between the spark plug center electrode and the ground electrode. If the gap distance is too large, the breakdown voltage required for spark generation Will increase, which will affect the normal work of the spark plug

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  • Method for judging service life of spark plug of engine
  • Method for judging service life of spark plug of engine
  • Method for judging service life of spark plug of engine

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0032] see figure 1 with figure 2 , this embodiment provides a method for determining the life of an engine spark plug, and the engine involved in this embodiment is an automobile engine.

[0033] see figure 2 , the method for judging the spark plug life of the present embodiment includes the following steps:

[0034] Step 1. After installing new spark plugs in the engine, set the preset spark plug gap increase data in the engine control module to zero.

[0035] The spark plug gap increase data is a variable data preset in the data storage area of ​​the engine control module, and the data is used to indicate the spark plug gap increase.

[0036] Step 2, during the running of the engine, each time the spark plug ignites, the engine control module calculates the single ignition gap increase of the spark plug caused by the ignition according to th...

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Abstract

The invention discloses a method for judging the service life of an engine spark plug. The spark plug service life judgment method comprises the steps that after a new spark plug is installed on an engine, preset spark plug gap increment data are set to be zero; in the operation process of the engine, the spark plug single-time ignition gap increment caused by ignition is calculated according to the real-time working condition of the engine every time the spark plug ignites; accumulating the spark plug single ignition gap increment obtained by each calculation into spark plug gap increment data; if the spark plug gap increment data exceeds a preset gap threshold value, judging that the service life of the spark plug is up; and when judging that the service life of the spark plug is up, sending out spark plug replacement prompt information. According to the spark plug service life judgment method, the spark plug single-time ignition gap increment is accurately calculated according to the engine working condition, accurate spark plug gap increment data is obtained through accumulation, the spark plug can be accurately and timely updated, normal operation of an engine is guaranteed, and waste is avoided.

Description

technical field [0001] The invention relates to a technology for judging the performance of an engine spark plug, in particular to a method for judging the life of an engine spark plug. Background technique [0002] The spark plug is an important component of the ignition system of gasoline engines and natural gas engines. It generates high-voltage electric sparks between the electrodes, thereby igniting the combustible mixture in the cylinder, and the combustible mixture in the cylinder detonates to generate power. The normal work of the spark plug is very important to ensure the stable operation of the engine. [0003] However, with the continuous increase of the spark plug service time, the spark plug gap will continue to increase. When the spark plug gap reaches a certain level, it will cause many adverse effects on the normal operation of the engine, such as difficulty in starting, idling vibration, etc., and even Can cause the engine to misfire. Therefore, when the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T13/60
CPCH01T13/60Y02T10/40
Inventor 李徐东陈林储利民陆静安包轶定吴宇波邓彪
Owner 上海新动力汽车科技股份有限公司
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