According to the provisions and requirements of the international GBT2978-2008 standard, the tire pressure for BYD F3 is generally between 2.0~2.5 BAR. Tire pressure monitoring is the real-time automatic monitoring of tire pressure during vehicle operation, with alarms for tire leaks and low pressure to ensure driving safety. 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 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 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 tire to become smaller, resulting in a faster rotation speed compared to other wheels. By comparing the differences in rotation speeds between tires, the system monitors tire pressure. Indirect tire pressure monitoring systems essentially rely on calculating the rolling radius of tires to monitor pressure. Introduction to Tire Pressure Monitoring System (TPMS): It combines the advantages of the above two systems, equipping direct sensors in two diagonally opposite tires and an indirect system for all four wheels. Compared to using only direct systems, this hybrid system can reduce costs and overcome the limitation of indirect systems, which cannot detect simultaneous low pressure in multiple tires. However, it still cannot provide real-time data of actual pressure in all four tires like direct systems.
