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专利名称：Method and apparatus for controlling an
electric assist steering system using anadaptive torque filter
发明人：Kevin M. McLaughlin,Stuart W.
Parker,Hristos K. Mantjios
申请号：US08/241053申请日：19940511公开号：US05473231A公开日：19951205
摘要：A steering assist system (10) providing assist in response to a steering controlsignal includes a vehicle speed sensor (56) for sensing vehicle speed and for providing aspeed signal having a value indicative of the sensed vehicle speed and a torque sensor(44) operatively connected to a vehicle hand wheel (12) for providing a torque signalindicative of applied steering torque. A controller is connected to the vehicle speedsensor (56) and to the torque sensor (44). The controller includes an adaptive torquefilter (80) that maintains a selectable system bandwidth independent of gain changes andvehicle speed changes. The adaptive filter (80) recovers any gain reduction by increasingthe frequency of a filter pole.
申请人：TRW INC.
代理机构：Tarolli, Sundheim & Covell
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