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In recent years, the demand for safer vehicles has increased. According to traffic accident reports prepared by the Metropolitan Police Department in Japan, almost all traffic accidents are caused by human errors such as driver negligence or operational mistakes. Therefore, future technologies need to precisely detect driver's mistakes and adopt active control in order to increase vehicle safety....
Active front steering (AFS) is an effective technique to stabilize motion control such as direct yaw control (DYC) for vehicle. However, if AFS intervenes excessively during the steering process, it becomes difficult to resolve the interference between driver steering and automatic steering by AFS. As a result, vehicles are at present rarely equipped with AFS. We propose a reactive torque control...
A stabilizing observer-based control algorithm for an in-wheel-motored vehicle is proposed, which generates direct yaw moment to compensate for the state deviations. The control scheme is based on a fuzzy rule-based body slip angle (beta) observer. In the design strategy of the fuzzy observer, the vehicle dynamics is represented by Takagi-Sugeno-like fuzzy models. Initially, local equivalent vehicle...
This paper is concerned with integrated yaw stability control strategy for 4WD EV driven by in-wheel motors. The strategy consists of double control loops. One is the upper control loop, which uses 2-DOF control method to specify control effectors which are required for keeping EV yaw stability. The other is the lower control loop, which is used to determine control inputs for four driving motors...
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