The invention provides a tyre pressure false alarm judging method and device for a TPMS (Tyre Pressure Monitoring System). The method comprises the following steps: setting the tyre high-pressure alarming threshold value, the under-pressure alarming threshold value and the air leakage alarming threshold difference value; setting the high-pressure alarming transition value, the under-pressure alarming transition value and the air leakage alarming transition value; detecting the pressure value of the tyre every the set interval time; when the detected tyre pressure value is greater than the high-pressure alarming transition value or less than the under-pressure alarming transition value, respectively judging the state as the high-pressure alarming state or the under-pressure alarming state; when the condition that the difference value of the two pressures measured before and after is greater than the air leakage alarming threshold difference value is detected, determining the current state as the air leakage pre-alarming state, and then judging whether the state is the air leakage alarming state or not; when the state is judged as the high-pressure alarming state, under-pressure alarming state or the air leakage alarming state, sending a high-pressure alarming signal, an under-pressure alarming signal or an air leakage alarming signal. According to the method and the device, the conditions of high-pressure false alarm, under-pressure false alarm and the slow air leakage false alarm can be avoided, the alarming is relatively accurate, the trust degree of a driver to the TPMS alarming is improved, and the safety of driving is improved.
Tyre pressure false alarm judging method and device for TPMS
2016-02-03
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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