Electric power steering device and method for controlling...

Electricity: motive power systems – Positional servo systems – With compensating features

Reexamination Certificate

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Details

C318S432000, C318S433000, C701S041000, C701S042000

Reexamination Certificate

active

07009358

ABSTRACT:
The present invention provides an electric power steering device enabled to compensate for the influence of the inertia of a steering-assisting-force generating motor on steering with accurate timing even when a steering direction is reversed at high speed. Based on steering torque and a rotation angular speed of a steering-assisting-force generating motor, a steering angular acceleration correspondence value is obtained. The device has means for regulating a gain, which is multiplied to a change acceleration of the steering torque. The motor is controlled so that the steering assisting force is corrected according to a motor output correction value obtained on the basis of the relation between the motor output correction value and the steering angular acceleration correspondence value, which is preliminarily determined and stored in such a way as to compensate for the influence of the inertia on steering, and the obtained steering angular acceleration correspondence value.

REFERENCES:
patent: 4666013 (1987-05-01), Shibahata et al.
patent: 4972320 (1990-11-01), Sugiura et al.
patent: 5076381 (1991-12-01), Daido et al.
patent: 5469357 (1995-11-01), Nishimoto
patent: 5740040 (1998-04-01), Kifuku et al.
patent: 6360151 (2002-03-01), Suzuki et al.
patent: 6389342 (2002-05-01), Kanda
patent: 6490514 (2002-12-01), Kurishige et al.
patent: 6594568 (2003-07-01), Matsuoka
patent: 6597136 (2003-07-01), Burton et al.
patent: 6768283 (2004-07-01), Tanaka et al.
patent: 6854559 (2005-02-01), Kurishige et al.
patent: 2002/0125845 (2002-09-01), Burton et al.
patent: 2003/0052639 (2003-03-01), Tanaka et al.
patent: 0 718 174 (1996-06-01), None
patent: 2694213 (1997-09-01), None
European Search Report dated Feb. 24, 2004.

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