Is it better to have a built-in or external tire pressure monitor?
1 Answers
From the perspective of usage environment, external sensors are installed on the outside of the tire, thus experiencing the same external conditions of sun and rain as the tire. In contrast, built-in sensors only expose the valve stem to the outside, so the usage environment for built-in sensors is better compared to external tire pressure monitoring systems. Below is a detailed introduction to tire pressure monitoring: 1. Working principle: The tire pressure monitoring system uses the sensing function of ABS to compare the rotation counts of the tires. Insufficient tire pressure shortens the tire's circumference, causing the rotation count to differ from other tires during driving. 2. Tire pressure alarm: The tire pressure monitoring system alerts based on speed sensor comparisons. Tire pressure display can be checked with a pressure gauge. While driving, the tire pressure loss display monitors the inflation pressure of the tires. If the inflation pressure in a tire is significantly lower than in others, the system will issue an alarm. When the internal pressure of the tire decreases, the working radius of the wheel changes accordingly, thus altering the wheel's rotation speed. 3. Initialization: To obtain accurate information about tire faults, the system requires the tires to have appropriate initial pressure. Initialization must be redone after each adjustment of tire inflation pressure, replacement of tires or wheels, and when towing a car or after towing in trailer driving mode.
