Control apparatus for electric power steering system

Electricity: motive power systems – Constant motor current – load and/or torque control

Reexamination Certificate

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Details

C318S430000, C318S434000, C318S700000, C180S065100, C180S065800, C701S041000, C701S044000

Reexamination Certificate

active

06943512

ABSTRACT:
The present invention is a control apparatus for controlling an electric power steering system having steering assist force control means for controlling a motor that gives a steering assist force to a steering mechanism relying upon a main torque input value obtained by subjecting a main torque signal from a torque sensor to the A/D conversion, upon a gain-multiplied torque input value obtained by multiplying said main torque signal by a first gain times followed by the A/D conversion and upon a sub-torque signal from said torque sensor, in order to carry out a failsafe function, characterized by the provision of a gain multiplier for multiplying said main torque input value by a second gain times,. and switching means for changing the output of said gain multiplier and said gain-multiplied torque input value over to each other to input it to said steering assist force control means.

REFERENCES:
patent: 4476954 (1984-10-01), Johnson et al.
patent: 4527653 (1985-07-01), Agarwal et al.
patent: 4926333 (1990-05-01), Hashiguchi et al.
patent: 5596252 (1997-01-01), Shimizu et al.
patent: 5648903 (1997-07-01), Liubakka
patent: 5740040 (1998-04-01), Kifuku et al.
patent: 5919241 (1999-07-01), Bolourchi et al.
patent: 6016042 (2000-01-01), Miura et al.
patent: 6134490 (2000-10-01), Ito et al.
patent: 6148948 (2000-11-01), Shimizu et al.
patent: 6308123 (2001-10-01), Ikegaya et al.
patent: 6407524 (2002-06-01), Endo et al.
patent: 6580988 (2003-06-01), Lin et al.
patent: 6687589 (2004-02-01), Kanda
patent: 1332944 (2004-02-01), None
patent: 10-329745 (1998-12-01), None
patent: 11-034902 (1999-02-01), None
patent: 2002-193130 (2002-07-01), None
patent: 2002-308136 (2002-10-01), None
patent: WO03/066415 (2003-08-01), None
patent: WO 03/066415 (2004-08-01), None

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