Automatic TPMS (Tire Pressure Monitor System) tire positioning method and system

Abstract

The invention discloses an automatic TPMS (Tire Pressure Monitor System) tire positioning method. The automatic TPMS tire positioning method comprises the following steps: a tire state information receiving step, namely receiving tire state information from a sensor component; a vehicle driving direction judgment step: detecting whether a vehicle travels forwards, if yes, executing a left and right tire recognition step; if no, executing the tire state information receiving step; the left and right tire recognition step: setting the tire state information including a positive acceleration value as detection information of a left front tire and a left rear tire, and setting the tire state information comprising a negative acceleration value as detection information of a right front tire and a right rear tire; and a front and rear tire recognition step: comparing temperature values of the tire state information of the left front tire and the left rear tire so as to obtain the detection information of the left front tire and the left rear tire respectively; and comparing the temperature values of the tire state information of the right front tire and the right rear tire so as to obtain detection information of the right front tire and the right rear tire respectively. According to the invention, a tire is automatically positioned accurately and reliably. The invention also relates to an automatic TPMS tire positioning system.

Description

[0001] technical field [0002] The invention relates to a TPMS tire position automatic positioning method and system. [0003] Background technique [0004] TPMS (tire pressure monitoring system, tire pressure monitoring system) is used to monitor the main parameters such as the pressure and temperature of vehicle tires in real time, so as to ensure that the pressure and temperature of tires are maintained within the standard range, and to reduce tire blowouts, The probability of tire damage can reduce fuel consumption and the damage rate of vehicle components. TPMS includes multiple high-sensitivity tire pressure sensor modules installed on each tire, real-time monitoring of tire pressure, temperature and other data in the driving state, and transmits wirelessly to the central monitor included in TPMS, through the The central monitor displays the current tire pressure and temperature, compares them with the set standard pressure value and safe temperature, and sends out ...

AI Technical Summary

Problems solved by technology

[0005] At present, TPMS generally identifies the tire position based on the identification code (ID) of the tire pressure sensor module. Therefore, when installing each tire, the identity of the tire pressure sensor module corresponding to the tire must be manually identified after the tire is installed. Enter the code into the central monitor. If you accidentally enter the wrong code, it will cause a detection error

In addition, it is very inconvenient to re-enter the identification code of the tire pressure sensor module when the tire is replaced or the position of the tire is changed in the subsequent maintenance.

Therefore, in the prior art, the controller at the bottom of the vehicle receives the radio frequency signals from the antennas of each wheel, and judges the position of the tires automatically according to the strength of the radio frequency signals. Although this method does not require manual input of identification codes, it is easy to use. Misjudgments are caused by interference, and the error rate is much higher than that of manual input of identification codes, which is unreliable and requires the installation of a controller at the bottom of the vehicle, which is costly

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