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Control method and system of automobile electric air compressor

A technology of electric air compressor and control method, applied in brake safety system, pump control, machine/engine, etc., can solve the problems of low control accuracy, high energy consumption, lack of overheat detection, etc.

Active Publication Date: 2018-07-24
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a control method and system of an electric air compressor for automobiles, which solves the problems of low control accuracy, large energy consumption and lack of overheating detection in the existing control mode of the air compressor for automobiles, and can improve the service life and intelligence of the air compressor

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  • Control method and system of automobile electric air compressor
  • Control method and system of automobile electric air compressor
  • Control method and system of automobile electric air compressor

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Embodiment Construction

[0040] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and implementation manners.

[0041] In view of the current new energy vehicles using electric air compressors to provide high-pressure gas to the braking system, relays and pressure switches are often used for control, and there are problems of low control accuracy and lack of fault detection. The invention provides a control method and system for an automobile electric air compressor, which solves the problems of low control accuracy, high energy consumption and lack of overheat detection in the existing automobile air compressor control method, and can improve the service life and intelligence of the air compressor .

[0042] Such as figure 1 As shown, it is a schematic diagram of a control method for an automobile electric a...

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Abstract

The invention provides a control method and system of an automobile electric air compressor. The control method comprises the following steps that an automobile power supply is electrically connectedwith the electric air compressor through a DCAC inverter, and the DCAC inverter is connected with a vehicle control unit through a CAN bus; when an ignition lock is on the ON gear, the DCAC inverter is turned on for hardware detection, if detection results of the DCAC inverter are normal, the direct current output from an automobile power supply is converted into alternating current by the DCAC inverter to supply power to the electric air compressor, so that the electric air compressor enters into a heat engine mode; a gas pressure value in a gas storage cylinder is detected, a pressurizationmessage is sent by the vehicle control unit when the gas pressure value is less than a set threshold value, and the electric air compressor is activated after the DCAC inverter receives the pressurization message. The service life and intelligence of the air compressor are prolonged and improved by the method.

Description

Technical field [0001] The invention relates to automobile brake control technology, in particular to a control method and system of an automobile electric air compressor. Background technique [0002] At present, there are more and more vehicles using pneumatic braking in the market. New energy vehicles often use electric air compressors to provide high-pressure gas to the braking system. Electric air compressors must ensure the safety of the braking system on the entire vehicle. It also requires energy saving and consumption reduction. The current air compressor control mostly uses relays and air pressure switches to control operation, but this control method is prone to the disadvantages of large energy consumption and reduced service life when the air compressor is frequently stopped and started. At the same time, it is directly controlled by the pressure switch. The start and stop of the air compressor have low control accuracy. Moreover, the lack of fault detection when t...

Claims

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Application Information

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IPC IPC(8): B60T13/26B60T13/66B60T17/22F04B49/06
CPCB60T13/26B60T13/662B60T17/22B60T2270/40F04B49/06
Inventor 陈伟常庆军谢飞
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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