ABSTRACT

ABSTRACT: This research focuses on an integration of body tilting controller and rear wheel steering controller to improve vehicle performances in terms of safety, steering sensitivity, and road holding capability, lateral stability and ride comfort. An active body tilting controller not only improve ride comfort and road holding capability, but also has a great potential to enhance steering sensitivity and lateral safety in cornering maneuvers. In order to get additional improvement of the lateral stability and safety, an active steering controller is used which controls the rear wheels to follow desired yaw rate and reduces sideslip angle of vehicle as much as possible. By using the combination, the proposed integrated system will enhance cornering maneuvers more, especially lateral safety. A 14 degree-of-freedom (DOF) nonlinear full car model is used to evaluate performances of the integrated control system.