Patent ID: 6736234
Filing Date: 2004-05-18
Classification: B62D

Abstract:
A system for controlling a steering wheel in a steer-by-wire system for simulated steering feel of a vehicle, the system comprising:a steering wheel having a steering shaft; a sensor disposed to the shaft, the sensor capable of sensing actual torsion on the steering shaft and sensing actual angular velocity of the steering wheel; a controller in electrical communication with the sensor, wherein the controller is configured to compare the actual angular velocity of the steering wheel to a threshold angular velocity and to compare the actual torsion to a threshold torque value; and an actuator disposed on the steering shaft and configured to generate a simulated steering feel torque on the steering wheel and to return the steering wheel to a center position at a specified angular velocity based on the comparison of the actual torsion to the threshold torque value and the comparison of the actual angular velocity to the threshold angular velocity.