The working principle of the automobile tire driving life tester is mainly based on monitoring and analyzing various parameters during the use of the tire to evaluate the wear condition and service life of the tire. Specifically, these parameters include tire pressure, temperature, wear degree, etc. The following are some key working principles and methods:
1.Monitoring based on tread depth:
The tread depth of the tire is an important indicator for evaluating the wear condition of the tire. As the mileage increases, the tread will gradually become shallower, affecting the grip performance of the tire, especially the safety factor in rainy days.
Tesla can monitor the tread depth of the tire in real time through OTA software upgrades, read the precise rotation speed of the wheel through the wheel speed sensor, and compare it with the rotation speed when the tire is in the new state, so as to determine the degree of wear of the tire.
2.Monitoring based on wear degree:
By setting sensors in the tire grooves, data on the degree of tire wear is collected and sent to the ECU (electronic control unit) for analysis.
The sensor can monitor the degree of wear of the tire. When the degree of wear exceeds the preset alarm value, the ECU will display a prompt message on the on-board screen to remind the driver to change the tire.
3.Monitoring based on mileage:
Generate tire service life reminder information by obtaining tire production time information and mileage planning information. Set the alarm threshold related to tire service life in the vehicle's ECU. When the preset alarm threshold is reached, the reminder information for changing tires is displayed.