Method and system for detecting gas leakage of automobile tire

Abstract

The invention discloses a method and system for detecting the gas leakage of automobile tire. The method comprises the following steps: when automobile tires are in a normal state, collecting and storing the original tire pressures of four tires by a tire pressure sensor; and during the driving process, at intervals of predetermined time, comparing the realtime tire pressures with the corresponding original tire pressures. When the tire pressure difference between the realtime tire pressure and corresponding original tire pressure of a tire is larger than that of other tires and the tire pressure difference exceeds a preset threshold value, the tire has the phenomenon of gas leakage. The provided method determines slow gas leakage through tire pressure error. The values are compared for three times and finally checked for one time, at the same time, an accuracy error mode is combined, the alarm of slow gas leakage becomes more accurate, and the potential safety hazard is reduced.

Description

technical field [0001] The invention relates to the technical field of tire pressure detection in the field of automobile electronics, in particular to a method and system for detecting air leakage of automobile tires. Background technique [0002] Among the traffic accidents involving casualties, 46% of them are caused by tires, and 70% of them are caused by lack of air type puncture accidents. Insufficient air pressure of automobile tires is mainly caused by insufficient inflation or air leakage, which has a great impact on automobile driving safety and will cause economic waste. When the air pressure is insufficient, in addition to being vulnerable to trauma, the tire may also experience cord breakage, crown peeling, cord peeling, wear on both sides, and even tire blowout accidents. Insufficient air pressure causes the tire to produce a standing wave phenomenon, that is, when the vehicle is running with insufficient tire pressure, the bending part has no time to return t...

AI Technical Summary

Problems solved by technology

[0008] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method and system for detecting air leakage of automobile tires, aiming at solving the problem that the TPMS monitoring system in the prior art cannot accurately monitor slow air leakage and can only reach a certain pressure. The display shows the change of the pressure, and if it exceeds the lower limit of the pressure, it will be reminded; if the small nails are inserted, the valve is aging, etc., the resulting air leakage cannot timely remind the owner that the tire has a slow air leakage defect

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