Automobile braking control method

A control method and automobile braking technology, which is applied in the direction of brakes, etc., can solve the problems of inaccurate braking judgment and inability to avoid braking instability, and achieve the effect of avoiding braking instability

Inactive Publication Date: 2018-01-09
成都安程通科技有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides an automobile braking control method to solve the problems that the existing braking control methods cannot avoid braking instability and the braking judgment is not accurate enough

Method used

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  • Automobile braking control method

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the application clearer, the application will be further described in detail in conjunction with the accompanying drawings and specific embodiments below. The schematic embodiments of the application and their descriptions are used to explain the application and do not constitute Undue limitation of this application.

[0025] Such as figure 1 Shown, a kind of automobile braking control method comprises:

[0026] Step 1. Calculate the front axle load mass, rear axle load mass and center of mass height of the car according to the vehicle body height.

[0027] Step 2. During the driving process of the vehicle, read the cornering stiffness of the front axle and the cornering stiffness of the rear axle of the current vehicle.

[0028] Step 3: Calculate the deceleration limit of the current vehicle during emergency braking according to the height of the center of mass, the mass of the front axle load, the m...

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Abstract

The invention discloses an automobile braking control method. The automobile braking control method comprises the steps that a front axle payload mass, a rear axle payload mass and the mass center heights of an automobile are calculated according to the height of an automobile body; the front axle lateral deviation rigidity and the rear axle lateral deviation rigidity of the current automobile areread; the deceleration limiting value in the emergency braking process of the current automobile is calculated according to the mass center heights, the front axle payload mass, the rear axle payloadmass, the front axle lateral deviation rigidity and the rear axle lateral deviation rigidity; the maximal safety braking deceleration is calculated according to the automobile running speed and the road surface peak value attachment coefficient; and the brake warning distance and the safety braking distance are calculated according to the deceleration limiting value and the maximal safety brakingdeceleration, the brake warning distance and the safety braking distance are compared, and the automobile is controlled to conduct braking according to the comparative result. According to the automobile braking control method, the automobile braking accuracy can be improved, and accidents caused by automobile instability in automobile emergency braking and too-late emergency barking are avoided.

Description

technical field [0001] The invention belongs to the technical field of vehicle brake control, in particular to a vehicle brake control method. Background technique [0002] In recent years, the road traffic safety situation has become more and more severe. According to statistics, among numerous traffic accidents, accidents caused by rear-end collisions account for the majority, especially rear-end collisions on expressways. However, rear-end collision accidents are mostly due to the fact that when the vehicle in front brakes urgently, the vehicle behind cannot quickly know and judge and deal with it in a timely manner. Ensure vehicle safety. [0003] At present, the braking control of the vehicle is generally performed according to the road surface with a high adhesion coefficient. The braking deceleration when the speed reaches the high-adhesion road surface. If the brake is still performed according to the corresponding warning distance and safety distance threshold of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/172
Inventor 蒋涛杨旭东黄万强
Owner 成都安程通科技有限公司
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