A vehicle steering apparatus is comprised of an assist motor, a steering
torque sensor, a steering angle sensor, and a controller. The controller
has a torque producing section for estimating a virtual steering model
input torque from a torque sensor detection value and a steering angle
detection value, a virtual steering model of representing a desired
steering characteristic which receives the virtual steering model input
torque and outputs a target steering angle of a steering column shaft,
and a steering angle servo for controlling an output of the assist motor
so that the steering angle detection angle follows the target steering
angle.