Electricity: motive power systems – Limitation of motor load – current – torque or force
Patent
1996-09-16
1998-09-01
Ip, Paul
Electricity: motive power systems
Limitation of motor load, current, torque or force
318432, 318293, 318294, 388811, H02P 714, B62D 504
Patent
active
058015043
ABSTRACT:
A control apparatus for an electric power steering system assures stability of the feedback control and control generation of noise from the control circuit when the steering wheel automatically returns to the neutral position by means of the self-aligning torque in order to improve the feeling of the steering operation. In the motor driving circuit connecting four semiconductor elements in the shape of H bridge, the semiconductors of the first arm are driven by the duty ratio D1 while the semiconductors of the second arm are driven by the duty radio D2 defined by the function of the duty ratio D1 (D2 is longer in time than D1).
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Unofficial English language Abstract of Item A12.
Endo Shuji
Itakura Yusuke
Kobayashi Hideyuki
Ip Paul
NSK Ltd.
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