A front wheel steering control device improves the handling and stability
of a vehicle with respect to the steering wheel angles. The front wheel
steering control device includes an input device for obtaining the
steering wheel angle and the vehicle velocity, a first computing device
for computing a yaw-rate for the vehicle which maintains the vehicle
gravity center point sideslip angle at zero based on the steering wheel
angle and the vehicle velocity that are obtained by the input device, a
second computing device for computing a target front wheel actual
steering angle for realizing the yaw-rate calculated by the first
computing device, a control device for performing a steering control of
the vehicle based on the target front wheel actual steering angle
calculated by the second computing device. The ideal determination of the
vehicle steering gear ratio and the derivative steering gain are
relatively easy.