DEvelopment of Tire Pressure warning System

摘要

We have developed the system of detecting underinflated tires of a vehicle using the signal of wheel speed sensor. By estimating the variation in the tire spring constant with the disturbance observer, it will be possible to detect the decrease of the tire pressure. This system is able to detect not only a puncture but also natural leaks. It is realized at low cost by adding only the function to the ABS(Anti-lick Brake System)