Automobile air filter monitoring method and electronic device

A technology of air filter and air filter element, which is applied in the direction of fuel air filter, mechanical equipment, combustion air/combustion-air treatment, etc., which can solve the problems of poor engine combustion performance and achieve precise control effects

Active Publication Date: 2019-11-01
SAIC GENERAL MOTORS +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

If the air flow sensor is polluted, there will be a deviation between the read intake air flow signal value and the real value, resulting in poor combustion performance of the engine

Method used

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  • Automobile air filter monitoring method and electronic device
  • Automobile air filter monitoring method and electronic device
  • Automobile air filter monitoring method and electronic device

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Embodiment Construction

[0045] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0046] Such as figure 1 Shown is a work flow chart of a kind of automobile air cleaner monitoring method of the present invention, comprises:

[0047] Step S101, obtaining real-time engine speed, real-time fuel injection volume, real-time intake air flow, and real-time sensor reading values ​​of the air flow sensor monitoring the air filter in real time;

[0048] Step S102, obtaining the basic sensor signal value corresponding to the real-time engine speed, real-time fuel injection quantity, and real-time intake air flow as the real-time basic sensor signal value;

[0049] Step S103, calculating the deviation value between the real-time sensor reading value and the real-time basic sensor signal value as the real-time calculated deviation value;

[0050] Step S104, obtaining the maximum real-time deviation value corresponding to the ...

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Abstract

The invention discloses an automobile air filter monitoring method and an automobile air filter monitoring electronic device. The automobile air filter monitoring method includes: obtaining real-timerotation speed, real-time fuel injection amount and real-time air intake flow of an engine and real-time sensor read-out values of an air flow sensor which monitors an air filter; obtaining basic sensor signal values corresponding to the real-time rotation speed, the real-time fuel injection amount and the real-time air intake flow of the engine and using the basic sensor signal values as real-time basic sensor signal values; calculating a deviation value between each real-time sensor read-out value and each real-time basic sensor signal value, and using the deviation values as real-time calculation deviation values; obtaining the maximum real-time deviation value corresponding to the real-time air intake flow; and confirming status of the air filter according to a relationship between thereal-time calculation deviation values and the maximum real-time deviation value. The automobile air filter monitoring method is accurate in control, and monitors states of the air flow sensor and anair filter core by reading the signal values of the flow of air entering the engine in real time.

Description

technical field [0001] The invention relates to the technical field related to automobiles, in particular to an automobile air filter monitoring method and electronic equipment. Background technique [0002] Usually, the engine needs to inhale a large amount of air during normal driving of a car. The air filter is an important part to ensure that the engine can inhale a sufficient amount of clean air. It can filter out dust and fine particles in the environment through the air filter element, thereby Improve engine combustion efficiency. At the same time, the intake air flow sensor on the air filter is also one of the important sensors of the engine. It reads the intake air volume signal behind the filter element and feeds it back to the engine electronic control unit to adjust the engine's reasonable combustion in real time. If the air flow sensor is polluted, there will be a deviation between the read intake air flow signal value and the real value, resulting in poor comb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/09F02M35/16G01M99/00G01F25/00
CPCF02M35/09F02M35/16G01M99/008G01F25/15
Inventor 李艳龙齐钢张颖邱群麟
Owner SAIC GENERAL MOTORS
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