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Self-adaptive stop control method and device for electric air compressor

A technology of electric air compressor and control method, which is applied in the direction of pump control, machine/engine, mechanical equipment, etc., to achieve the effect of strong stability, high reliability and cost saving

Active Publication Date: 2016-12-14
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an adaptive shutdown control method for electric air compressors, which is used to solve the problem of precise shutdown of electric air compressors

Method used

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  • Self-adaptive stop control method and device for electric air compressor
  • Self-adaptive stop control method and device for electric air compressor

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Embodiment Construction

[0026] An adaptive shutdown control method for an electric air compressor of the present invention comprises the following steps:

[0027] S1. Detect air bag pressure;

[0028] S2. Compare the pressure value of the air bag with the set air pressure value. When the pressure of the main air bag reaches the air pressure value required by the vehicle brake, the working current of the air compressor is detected. When the working current of the air compressor reaches the unloading current, the air compressor Shut down; the unloading current is the stable current value reached by the air compressor after unloading.

[0029] This control method can accurately control the shutdown of the electric air compressor, and this control method has high reliability and strong adaptability. Specifically, such as figure 1 and figure 2 As shown, the steps to control the shutdown of the electric air compressor are:

[0030] 1. The main air bag pressure sensor transmits the air bag pressure sig...

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Abstract

The invention discloses a self-adaptive stop control method and device for an electric air compressor. The method comprises the following steps: first, detecting the pressures of air storing tanks; then, comparing the pressure values of the air storing tanks with set air pressure values; when the pressure of the main air storing tank reaches an air pressure value required by the braking of the whole vehicle, detecting the working current of the air compressor; and when the working current of the air compressor reaches unloading current, stopping the air compressor, wherein the unloading current is a stable current value that the air compressor reaches after unloading. The precise control of the electric air compressor is realized through the process.

Description

technical field [0001] The invention relates to the field of shutdown control of electric air compressors for vehicles, in particular to an adaptive shutdown control method and device for electric air compressors. Background technique [0002] At present, the air compressor of the internal combustion engine vehicle is driven by the internal combustion engine, and the electric air compressor is generally used in the pure electric vehicle. It is particularly important to control the start and stop of the electric air compressor. [0003] The start-up control method of the existing electric air compressor for vehicles is generally judged according to the existing air pressure of the brake air bag, and the shutdown condition is judged according to whether the dry valve is unloaded or not. The dry valve electric air compressor can dry the air circuit after it stops, thereby improving braking safety, and at the same time avoiding the damage of the air compressor caused by the ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06F04B35/04
CPCF04B35/04F04B49/06
Inventor 王炜斌刘振楠李嘉高建平苏常军
Owner ZHENGZHOU YUTONG BUS CO LTD
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