Where is the tire pressure sensor installed in the tire?
1 Answers
Tire pressure monitoring sensors can be divided into internal and external types based on their installation positions. Internal sensors are installed inside the tire, which is relatively more stable and provides more accurate temperature monitoring data. External tire pressure monitoring sensors are installed on the tire, usually at the valve stem position. There are three commonly used tire pressure monitoring methods: Direct tire pressure monitoring: Direct tire pressure monitoring devices use pressure sensors installed in each tire to directly measure the tire pressure. The pressure information is transmitted wirelessly from inside the tire to a central receiver module, which then displays the tire pressure data. The system automatically alerts when the tire pressure is too low or there is a leak. Indirect tire pressure monitoring: When the pressure in a tire decreases, the vehicle's weight causes the rolling radius of that wheel to become smaller, making it rotate faster than the other wheels. By comparing the rotational speed differences between tires, the system monitors the tire pressure. Indirect tire pressure alert systems essentially rely on calculating the tire's rolling radius to monitor pressure. Introduction to the Tire Pressure Monitoring System (TPMS): It combines the advantages of both systems mentioned above. Direct sensors are installed in two diagonally opposite tires, along with a 4-wheel indirect system. Compared to using only a direct system, this hybrid system reduces costs and overcomes the limitation of indirect systems in detecting simultaneous low pressure in multiple tires. However, it still cannot provide real-time pressure data for all four tires like a direct system.
