Experimental verification of traction control based on slip ratio estimation without vehicle speed detection for electric vehicle

摘要

In traction control system, it is necessary to detect vehicle speed in order to obtain the slip ratio. However, it is hard to detect vehicle speed directly for four-wheel-drive vehicle. In this paper, slip ratio estimator and controller without vehicle speed are proposed for electric vehicle. The experimental vehicle is LANCER Evolution MIEV which was developed by Mitsubishi Motor Corporation in 2005. The effectiveness of proposed method was examined on low μ road.