On-line and real-time information of the longitudinal velocity is the essential factor for the Advanced Vehicle Control Systems such as ABS (Anti-lock Brake System), TCS (Traction Control System), ESC(Electronic Stability Control) etc. In these system...
On-line and real-time information of the longitudinal velocity is the essential factor for the Advanced Vehicle Control Systems such as ABS (Anti-lock Brake System), TCS (Traction Control System), ESC(Electronic Stability Control) etc. In these systems, the information of the longitudinal velocity is the key factor. A estimation method of the longitudinal velocity is developed based on the measurements of the vehicle longitudinal/lateral accelerations, steering angle and yaw rate. The Kalman filter is designed based on the 3 degree of freedom vehicle model. In order to calibrate the acceleration sensor, the inclined angle of the sensor is estimated. The performance of the proposed estimation method is evaluated in simulations using CarSim and Matlab/simulink. Also, its performance is tested on an instrumented test car in various driving conditions.