Controlling apparatus for power steering

Details Controlling apparatus for power steering Controlling apparatus for power steering

1995-01-04

1995-11-21

Chin, Gary

Boots, shoes, and leggings

180 791, 180142, B62D 504

Patent

active

054693578

ABSTRACT:
A controlling apparatus for a power steering system including a differentiation unit in which a signal selecting element judges whether a first torque detecting signal having a high gain is in a saturated range or not, a first differential current signal obtained by differentiating the first torque detecting signal in the case where the first torque detecting signal is not in the saturated range, and outputs a second differential current signal obtained by differentiating a second torque detecting signal having a low gain in the case where the first torque detecting signal is in the saturated range to generate the differential current signal for adjusting a control value of a driving current for a steering assisting motor to obtain the effect of differential control for a wide range of steering torque without producing an inharmonious steering feeling.

REFERENCES:
patent: 4972320 (1990-11-01), Sugiura et al.
patent: 4979114 (1990-12-01), Oshita et al.
patent: 5040629 (1991-08-01), Matsuoka et al.
patent: 5182711 (1993-01-01), Takahashi et al.
patent: 5201818 (1993-04-01), Nishimoto
patent: 5253725 (1993-10-01), Nishimoto

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