TPMS system and control method thereof

Abstract

The present invention discloses a TPMS system, which comprises a tire pressure monitoring sensor, wherein an acceleration threshold, a high pressure threshold, a low pressure threshold, a gas leakage threshold, a temperature threshold and a voltage threshold are set, the tire pressure monitoring sensor cyclically detects the tire pressure, the temperature and the power supply voltage according to a first preset time when the measured speed is smaller than the acceleration threshold, the tire pressure monitoring sensor sends alarming information to a tire pressure monitoring controller if a preset alarming condition is met, the alarming information is sent to a vehicle-mounted instrument panel to perform acousto-optic alarming when the ignition switch of an engine is positioned at the ON file, the tire pressure monitoring sensor cyclically detects the tire pressure, the temperature and the power supply voltage according to a second preset time when the measured speed is larger than the acceleration threshold, the tire pressure monitoring sensor sends alarming information if the preset alarming condition is met, and the tire pressure monitoring controller sends the alarming information to the vehicle-mounted instrument panel to perform acousto-optic alarming. With the TPMS system and the control method of the present invention, the working condition monitoring can be performed on the tire and the alarming information can be sent when the vehicle is in the stationary state so as to avoid the security loophole.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a TPMS system for tire working condition monitoring. The invention also relates to a TPMS system control method. Background technique [0002] The tire pressure monitoring system (Tire Pressure Monitoring System, TPMS) is a wireless transmission technology that uses a high-sensitivity wireless sensor device fixed in the car tire to collect data such as car tire pressure and temperature while driving or stationary. And transmit the data to the host computer in the cab, display relevant data such as tire pressure and temperature in digital form in real time, and remind the driver to give an early warning in the form of buzzer or voice when the tire is abnormal (to prevent tire blowout) automotive active safety systems. Thereby ensuring that the pressure and temperature of the tires are maintained within the standard range, which can reduce the probability of tire blowout and damage, an...

AI Technical Summary

Problems solved by technology

[0004] 1. For direct TPMS, the accuracy of its alarm prompts (including whether there are false alarms or false alarms) and the pressure resistance of the sensor need to be improved urgently;

[0005] 2. Direct TPMS has high manufacturing cost and requires professionals for installation;

When the car is in a static state (for example, parked state) for a long time, if the tire has abnormal conditions such as low pressure and high pressure, the alarm cannot be issued in time, which will cause a safety loophole and cause danger.

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