发明名称 |
Method and apparatus for controlling a magneto-rheological power steering coupling |
摘要 |
A method of controlling a magneto-rheological power steering coupling is provided. The method is to be employed by a controller and is initiated upon engine start-up. The method includes initializing calibration parameters and reading a plurality of input values. Subsequently, a hand wheel angle rate value is calculated from one of said plurality of input values. A pump speed command value is calculated as a function of at least the hand wheel angle rate value. A pump speed error value is then calculated, and a proportional-integral-derivative calculation is performed acting on the pump speed error value to determine a pulse width modulation duty cycle value. The duty cycle value is then output to a power driver to provide a control signal to the magneto-rheological power steering coupling. Also provided is control system and apparatus operable to perform the functions described hereinabove.
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申请公布号 |
US7571040(B2) |
申请公布日期 |
2009.08.04 |
申请号 |
US20060352578 |
申请日期 |
2006.02.10 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
MURTY BALARAMA V.;NAMUDURI CHANDRA S.;SHOEMAKER KENNETH J. |
分类号 |
A01B69/00;B62D5/04 |
主分类号 |
A01B69/00 |
代理机构 |
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代理人 |
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地址 |
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