Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 13, 2020 - September 16, 2020
This study proposes the brake control method using the road surface friction coefficient. The traditional ABS (Anti-lock Braking System) usually controls the brake hydraulic pressure to have the slip ratio be 0.2, at which the road surface friction coefficient is supposed to be maximum. However, the slip ratio at which the road surface friction coefficient is the maximum varies depending on road surface conditions. Furthermore, it is difficult to measure the slip ratio accurately because the vehicle speed cannot be measured easily. The authors have already proposed a method to measure the road surface friction coefficient from strains induced on a tire side face. Thus, this study proposes the brake control method by using the road surface friction coefficient and the wheel acceleration instead of the slip ratio.
