Patent ID: 6363305
Filing Date: 2002-03-26
Classification: B62D

Abstract:
A steer-by-wire control system comprising:a master control unit; at least one roadwheel unit electrically connected to said master control unit; at least one steering wheel unit electrically connected to said master control unit; a vehicle speed sensor for producing a vehicle speed signal, said vehicle speed sensor electrically connected to said master control unit; wherein said at least one roadwheel unit includes a roadwheel position sensor and a least one tie rod sensor to produce and transmit a tie rod force signal; wherein said at least one steering wheel unit includes a steering wheel position sensor to produce and transmit a steering wheel position signal; wherein said master control unit calculates at least one roadwheel command signal in response to said tie rod force signal and said steering wheel position signal; wherein said master control unit including a torque unit to calculate and produce a reaction torque signal in response to said tie-rod force signal and said vehicle speed signal; and wherein said torque unit uses said tie rod force signal as an index to a plurality of torque look-up tables and blending the outputs thereof to generate a blended value.