A failure prediction and processing method of a vehicle braking system

A braking system and vehicle braking technology, applied in braking safety systems, brakes, vehicle components, etc., can solve problems such as difficulty in finding abnormalities in time, and achieve the goal of fewer detection parameters, improved safety, and reduced braking system compliance. Effect

Active Publication Date: 2021-04-16
苏州艾普乐思新能源动力系统科技有限公司
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Problems solved by technology

[0003] Aiming at the defects of the above-mentioned prior art, the present invention provides a method for predicting the failure of the vehicle braking system, which solves the problem that it is difficult to detect abnormalities in time due to the judgment method of the vehicle braking state relying on manual detection of brake fluid

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  • A failure prediction and processing method of a vehicle braking system
  • A failure prediction and processing method of a vehicle braking system
  • A failure prediction and processing method of a vehicle braking system

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with embodiment, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art can modify various equivalent forms of the present invention All fall within the scope defined by the appended claims of this application.

[0016] Please combine figure 1 As shown, the vehicle brake system failure prediction method of the present invention includes the following steps: Step 1. Statistics of the corresponding relationship between the brake pedal opening α and the brake system pipeline pressure P under the normal state of vehicle braking, such as image 3 As shown, the pressure of the brake system pipeline is measured by the pressure sensor, etc., and the normal pressure value of the brake system pipeline under several brake pedal openings is calib...

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Abstract

The invention discloses a method for predicting the failure of a vehicle braking system, which includes counting the corresponding relationship between the brake pedal opening and the brake system pipeline pressure under the normal state of vehicle braking, and calibrating the braking system under several brake pedal openings. The normal pressure value of the pipeline; calculate the actual pressure value of the brake system pipeline under a certain calibrated brake pedal opening during vehicle running, and calculate the average value of the brake system pipeline pressure; compare and judge the brake pedal opening The average value of the pipeline pressure of the dynamic system and the normal pressure value of the brake system pipeline. When the average pressure of the brake system pipeline is less than the normal pressure value of the brake system pipeline, it is judged that the vehicle brake system has failed, otherwise it is judged that the vehicle brake system is normal. . The invention discloses a vehicle brake system failure treatment method, which reduces the allowable output maximum power of the vehicle power source and increases the calibrated maximum brake torque of the brake system. The method of the invention can judge the state of the braking system of the vehicle in real time to ensure safety.

Description

technical field [0001] The invention relates to a vehicle braking control processing method, in particular to a vehicle braking system failure prediction and processing method. Background technique [0002] Car braking mainly depends on the driver stepping on the brake pedal, and the brake fluid pressure is transmitted to the front and rear brake circuits through the brake master cylinder, acting on the brakes to generate braking force. During the long-term operation of the vehicle, water or air bubbles may enter the brake pipeline. When the user depresses the same pedal opening, the pressure in the pipeline will decrease due to problems such as water and air bubbles in the oil. The reduction of pressure easily leads to insufficient braking force, which seriously affects driving safety. In the daily maintenance of the vehicle, the braking status can be judged by detecting the brake fluid, and the brake fluid can be replaced in time to solve the problem of brake failure caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/22B60T13/12
CPCB60T13/12B60T17/22
Inventor 李亚辉
Owner 苏州艾普乐思新能源动力系统科技有限公司
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