Patent ID: 6546322
Filing Date: 2003-04-08
Classification: B62D

Abstract:
A method for controlling a steering apparatus of a vehicle, the method comprising the steps of:(i) providing at least one signal indicative of a condition of the vehicle during a steering maneuver to a controller; (ii) analyzing the at least one vehicle condition signal to determine a desired operator torque to be applied to a hand wheel of the vehicle; (iii) determining inertia of the hand wheel of the vehicle; (iv) determining rotational acceleration of the hand wheel; (v) calculating a hand wheel torque by multiplying the inertia of the hand wheel with the rotational acceleration of the hand wheel; (vi) determining a column torque across a torsion bar; (vii) producing an error signal by subtracting the hand wheel torque and the column torque from the desired operator torque; and (viii) controlling the steering apparatus with the error signal.