Electric power steering apparatus
AssigneeShowa Corporation
InventorTadayoshi Iwase
Life of this patent
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Abstract
An electric power steering apparatus includes: a detector that detects a value corresponding to a steering torque of a steering wheel; a correcting unit that corrects a detection value detected by the detector by taking into account a hysteresis between an actual steering torque and the detection value detected by the detector; and a target current calculating unit that calculates a target current which is supplied to an electric motor on the basis of a corrected detection value corrected by the correcting unit. The correcting unit makes a correction by using a correction value corresponding to the detection value detected by the detector so as to make the hysteresis small in a case where the steering torque is small and large in a case where the steering torque is large.
Claims6
An electric power steering apparatus comprising:
- a detector that detects a value corresponding to a steering torque of a steering wheel;
- a correcting unit that corrects a detection value detected by the detector by taking into account a hysteresis between an actual steering torque and the detection value detected by the detector;
- and
- a target current calculating unit that calculates a target current which is supplied to an electric motor on the basis of a corrected detection value corrected by the correcting unit, wherein
- the correcting unit makes a correction by using a correction value corresponding to the detection value detected by the detector so as to make the hysteresis small in a case where the steering torque is small and large in a case where the steering torque is large.
Dependencies are inferred from the claim text.