Patent ID: 7529605
Filing Date: 2009-05-05
Classification: B62D

Abstract:
1. A steering system for a vehicle, comprising: a control operated by a driver of the vehicle; an input operation measuring device for measuring a quantity of operation of the control by the driver; steered wheels which are mechanically independent of the control; a steering section including a steering actuator for steering the steered wheels; a target steering angle setting section for setting a target steering angle in accordance with the quantity of operation measured by the input operation measuring device; a reaction actuator for applying a steering reactive force to the control; a virtual steering angle setting section for setting a virtual steering angle based on a virtual model which represents predetermined dynamic characteristics of the steering section; and a reaction control section for setting a target reactive force in accordance with a difference between the target steering angle set by the target steering angle setting section and the virtual steering angle set by the virtual steering angle setting section, and controlling the reaction actuator based on the target reactive force.