A control device for a vehicle is equipped with a vehicle model motion
determining device for determining a motion of a vehicle (a vehicle model
motion) on a vehicle model expressing the dynamic characteristics of a
vehicle on the basis of drive manipulated variables, such as an angle of
steering by a driver, and a state amount error reaction control device
for determining control inputs to an actuator control device of the
actual vehicle and the vehicle model motion determining device according
to a feedback law on the basis of a difference between a state amount of
a vehicle model motion (model state amounts, such as a position or a
posture of a vehicle) and a state amount of a motion of the actual
vehicle 1 (a state amount error). Based on a state amount error, not only
a motion of an actual vehicle but also a vehicle model motion is
manipulated, thereby enhancing robustness against disturbance factors or
their changes while conducting actuator operation control that is suited
to a behavior of the actual vehicle as much as possible.