Abstract
For the better understanding of the pleasant handling vehicle, this paper evaluates the instantaneous static margin by using equivalent cornering stiffness which deals with the effect of non-linear tire characteristics. The yaw angular acceleration caused by the driver's sudden steering action makes steering characteristics even worse (under-steer during turn-in, and over-steer during turn-out period). By using the vertical load dependencies and longitudinal force effect, the longitudinal acceleration control and new braking /traction force distribution control between front and rear by using vehicle’s lateral jerk information are proposed for the compensation of deteriorated handling characteristics.