What Causes Abnormal Tire Pressure Monitoring Signal in BYD Vehicles?
1 Answers
Abnormal tire pressure monitoring signals in BYD vehicles are generally caused by the following three reasons: Abnormal Tire Pressure: The system typically triggers an alarm when the pressure is below 1.8 bar or exceeds 3.0 bar. In such cases, tire inspection and pressure adjustment are necessary. Unreset Tire Pressure Monitoring: After inflating the tires, if the tire pressure monitoring system is not reset promptly, it will continue to display the previously recorded data, causing the tire pressure warning light to illuminate. Simply performing a tire pressure reset will resolve this issue. Damaged Tire Pressure Sensor: The tire pressure sensor, which monitors tire pressure, is installed inside the tire and connected to the tire valve. If the sensor is damaged during driving (e.g., by impact), the tire pressure warning light will activate. In such cases, the only solution is to replace the sensor with a new one. There are three common methods of tire pressure monitoring: Direct Tire Pressure Monitoring: This system uses pressure sensors installed in each tire to directly measure tire pressure. The data is transmitted wirelessly from inside the tire to a central receiver module, which then displays the pressure readings for each tire. Indirect Tire Pressure Monitoring: When a tire's pressure drops, the vehicle's weight causes the rolling radius of that tire to decrease, making it rotate faster than the others. By comparing the rotational speed differences between tires, the system monitors tire pressure. Tire Pressure Monitoring System (TPMS) Overview: This system combines the advantages of both direct and indirect monitoring. It equips two diagonally opposite tires with direct sensors and uses a 4-wheel indirect system for the remaining tires. Compared to a fully direct system, this hybrid approach reduces costs and overcomes the indirect system's limitation of being unable to detect simultaneous low pressure in multiple tires.
