Measurement Performance Quantification of Lateral Tire Force Sensor and Application to Yaw-rate Control of Electric Vehicle

Abstract

To improve the active safety of a vehicle, advanced vehicle dynamics control is required. A lateral tire force sensor (LTFS) can directly measure the lateral force that is acting upon a tire. In this study, the measure performance of the LTFS was quantified on the basis of the measurement period, time delay, and resolution changes due to quantization error and jitter. The effectiveness of the acceleration error correction method is verified by simulation and experiment. A novel yaw-rate control method using an LTFS and yaw moment observer is proposed, the method is verified by simulation and by actual implementation on an experimental electric vehicle.