Abstract
For improving vehicle control and safety, intelligent tires which is equipped with sensors and monitoring tire/road contact condition is demanded. To identify the coefficient of friction of tire/road surfaces during driving including cornering, we constructed an identification scheme of the coefficient of friction through estimating the slip angle and applied force by attaching single lightweight triaxial acceleration meter on the inner tire surface. To validate the proposed scheme, we conducted tire-rolling tests using accelerometer-equipped tire with various slip angles on various types of road surfaces including dry and wet conditions. As a result, it was confirmed that the estimated slip angle and applied force are reasonable, and the coefficient of friction is identified with high accuracy compared with that measured by standardized tests of the coefficient of friction.
