Abstract
A new active control method for the attitude angles of wheels is proposed to improve the maneuverability and stability of vehicles. It is expected that a system for controlling not only the steer angles of the front and rear wheels but also their camber angles will make it possible to provide enhanced vehicle dynamics mainly due to the effect of camber thrust force, particularly such as under cornering behavior with relatively large lateral acceleration. According to theoretical analysis and computer simulation, it can be confirmed that the attitude control system of tire-wheels which uses combined methods of feedforward and feedback controls corresponding to various running conditions can realize the intended vehicle response characteristics in wider maneuvering ranges of lateral acceleration than four-wheel-steering systems depending on steer angle control only.
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