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    • 2. 发明申请
    • METHOD AND APPARATUS FOR CONTROLLING AN ELECTRIC ASSIST STEERING SYSTEM USING AN ADAPTIVE BLENDING TORQUE FILTER AND ROAD FEEL FILTER
    • 用于控制电动辅助转向系统的方法和装置,使用自适应混合扭矩过滤器和道路感应过滤器
    • WO2006099483A1
    • 2006-09-21
    • PCT/US2006/009313
    • 2006-03-14
    • TRW AUTOMOTIVE U.S. LLCMCLAUGHLIN, Kevin M.
    • MCLAUGHLIN, Kevin M.
    • B62D6/00B62D5/04
    • B62D5/0463B62D6/008
    • An apparatus is provided for controlling a steering assist system that includes a torque sensing system operatively connected to a vehicle hand wheel for providing a torque signal indicative of an applied steering torque. A blending filter connected to the torque sensing system provides a blended torque signal. An adaptive torque filter filters the blended torque signal for maintaining stability at all vehicle speeds. A road feel filter connected to the adaptive torque filter removes a lag-lead induced by an interaction of the adaptive torque filter and the blending filter at substantially zero gain. A steering assist device provides steering assist in response to a control signal. A controller provides the control signal to the steering assist device in response to a modified adaptive torque signal. The road feel filter filters the lag-lead from the adaptive torque signal for allowing road feel to be transmitted through the hand wheel at substantially zero gain.
    • 提供了一种用于控制转向辅助系统的装置,其包括可操作地连接到车辆手轮的扭矩感测系统,用于提供指示施加的转向扭矩的扭矩信号。 连接到转矩传感系统的混合滤波器提供混合转矩信号。 自适应扭矩滤波器对混合扭矩信号进行滤波,以保持所有车辆速度下的稳定性。 连接到自适应扭矩滤波器的道路感应滤波器消除由基本上零增益的自适应扭矩滤波器和混合滤波器的相互作用引起的滞后引线。 转向辅助装置响应于控制信号提供转向辅助。 控制器响应于修改的自适应扭矩信号向控制辅助装置提供控制信号。 道路感应过滤器从自适应扭矩信号中滤除滞后引线,以允许路面感觉以基本上零增益通过手轮传递。