How many types of car tire pressure monitoring are there?
2 Answers
There are 3 types of car tire pressure monitoring: Indirect WSB, Direct PSB, and Composite TPMS. The function of car tire pressure monitoring is to automatically monitor tire pressure in real-time during vehicle operation, and to alert for tire leaks and low pressure to ensure driving safety. The car tire pressure monitoring system is a set of initialization systems designed specifically for vehicle manufacturers, utilizing wireless RF technology to quickly activate, identify, and locate various TPMS sensors, and writing relevant information into the vehicle's ECU electronic control unit through the OBDII interface, ultimately achieving the initialization of the tire pressure monitoring system.
There are three common methods for automotive tire pressure monitoring. When driving my off-road vehicle on long trips, I most frequently use the direct tire pressure monitoring system (TPMS), where each tire has a sensor that transmits real-time data to the dashboard, allowing me to accurately see which tire is losing pressure. It automatically compensates for readings when encountering changes in road surface temperature. It's especially practical for highway driving as it allows setting tire pressure alarm thresholds. The second method is indirect monitoring, which relies on ABS wheel speed sensors to detect differences in tire rotation speeds. This type is common in regular sedans due to its low cost, but it reacts more slowly—I remember once driving two kilometers after a nail puncture before the alarm went off. The third method is the physical inspection approach often used by experienced drivers, involving regular manual checks with a tire pressure gauge. Though the most primitive, it's the most reliable. I make it a habit to check all four tires every time I refuel, combining it with electronic monitoring for double assurance and peace of mind.
