Air brake abnormal detection method and system

Abstract

The invention provides an air pressure brake anomaly detection method and system. The air pressure brake anomaly detection method and system comprises the following steps of an air pressure anomaly judging step of detecting a brake pedal travel, brake cylinder pressure and pneumatic supply pressure and transmitting a first anomaly signal after comparing and judging the anomaly; a film anomaly judging step of performing parking brake detection and transmitting a second anomaly signal after comparing a parking brake opening and closing state with the brake cylinder pressure to judge the anomaly; and a redundancy estimating step of automatically judging and estimating redundancy starting after judging the first anomaly signal, the second anomaly signal and a vehicle speed. Therefore, through adoption of the air pressure brake anomaly detection method, the brake anomaly can be definitely judged and the starting of a redundancy mechanism and the troubleshooting before an accident are carried out in advance.

Description

technical field [0001] The present invention relates to a brake detection system and detection method, in particular, to a method and system for abnormal detection of air pressure brakes that can be activated in advance for backup or troubleshooting. Background technique [0002] Today, the driver's response alone cannot cope with the increasingly complex driving environment, so the quality of the driver's personal response ability will greatly affect the driving safety. Among them, the vehicle brake system is one of the most important systems for driving safety, and the brake assist system for assisting the driver of the vehicle has been developed in large quantities so as to increase the driving safety. However, these brake assist systems are mostly used to provide a design for reminding the driver to cut off the power, use the parking brake or interrupt the power when the brakes fail. However, sufficient research and development has not been provided for the abnormal air...

AI Technical Summary

Problems solved by technology

However, for actual vehicle driving, the simple air pressure source and the brake pedal cannot accurately determine whether the front axle brake or the rear axle brake will fail, and it will also cause frequent errors in subsequent driving emergency braking actions, which will not only cause air pressure brakes The emergency brake of the car fails again or fails to respond in time, and it is also common to drive the wrong emergency brake method and cause a truck rollover accident

[0004] However, although there is a backup method in the aforementioned common use, the method of increasing the auxiliary air pressure source is very easy to fail under extreme conditions. If the difference is different, it will not be able to immediately respond to the braking position, resulting in the inability to immediately slow down the vehicle speed or activate the automatic braking of the vehicle, thus still causing a collision

[0005] In addition, the above-mentioned problems especially occur in the auxiliary brake system which can only simply warn the driver

In the case of insufficient information and unresponsiveness, the general driver cannot fully solve the situation of brake failure.

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