VEHICULAR STEERING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a vehicular steering device capable of adding an operation reaction force according to a vehicle behavior to an operating member, and improving steering feeling. SOLUTION: A reaction force actuator 19 gives a steering wheel 1 reaction force torque Tm (operation reaction force). A reaction force setting portion 37 sets a target reaction force torque basic value Tobjaccording to an operation angleθ, a yaw rateγ, and yaw accelerationγ'. The target reaction force torque basic value Tobjis multiplied by a torque gain KT, and target reaction force torque Tm*is obtained. The reaction force actuator 19 is driven according to the target reaction force torque TM*. The target reaction force torque basic value Tobjincludes yaw rate reaction force components and yaw acceleration reaction force components. The gain of the yaw acceleration reaction force component is made to be zero at the time of return steering. COPYRIGHT: (C)2010,JPO&INPIT