Control method of vacuum pump and computer readable storage medium

Abstract

The invention provides a control method of a vacuum pump and a computer readable storage medium, which relate to the technical field of electric vehicle brake control. The current vacuum degree of thevacuum pump is collected, the vacuum degree and the initial opening threshold value are judged through determining the initial opening threshold value and the initial closing threshold value of the vacuum pump; if the vacuum degree is judged to be larger than or equal to the initial opening threshold value, the process is finished, or otherwise the vacuum pump is enabled to be opened; when the vacuum degree in the vacuum pump is increased after the vacuum pump works, and the increased vacuum degree is smaller than or equal to the initial closing threshold value, the vacuum pump continues to work, or otherwise, the vacuum pump is closed; and when the vacuum pump continues to work and the change rate of the increased vacuum degree is smaller than a preset value and lasts for a certain period of time, the vacuum pump enters a saturation self-learning mode. The problems of heat accumulation in the vacuum pump due to overload work of the vacuum pump and burnout of the vacuum pump due to over-high temperature are solved, and the service life of the vacuum pump is prolonged.

Description

technical field [0001] The invention relates to the technical field of electric vehicle braking control, in particular to a vacuum pump control method and a computer storage medium. Background technique [0002] The vacuum boosting effect of the braking system of electric vehicles is related to the driving safety of the car. In the braking boosting system of the vehicle, because the vacuum booster cannot obtain vacuum or the vacuum obtained is insufficient, the boosting effect of the braking system will deteriorate. As a booster of the braking system of electric vehicles, the vacuum pump amplifies the force of the input rod during braking and then acts on the brake master cylinder through the output rod, thereby increasing the braking force and reducing the fatigue of the driver. Since a pure electric vehicle does not have an intake manifold, it cannot use intake air to generate pressure to achieve power assistance. The electronic vacuum pump creates a vacuum in the chamber...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a control method of a vacuum pump and a computer storage medium, which are used to solve the technical problems of overloading of the vacuum pump, causing heat accumulation in the vacuum pump, and excessive temperature causing the vacuum pump to burn out

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