Power steering apparatus
AssigneeKoyo Seiko Co., Ltd.
InventorKoji Kanda
Life of this patent
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Abstract
A power steering apparatus for assisting steering by conferring a steering assisting force according to a steering manipulation to a steering mechanism. The apparatus includes an electric motor being driven under control according to the steering manipulation, and a deteriorated condition judging factor storage portion for storing a factor used for judging a deteriorated condition of the electric motor. The factor used for judging the deteriorated condition of the electric motor includes, for example, an accumulated value of load exerted on the electric motor.
Claims10
A power steering apparatus for assisting steering by conferring a steering assisting force according to a steering manipulation to a steering mechanism, the apparatus comprising:
- an electric motor being driven under control according to the steering manipulation;
- and
- a deteriorated condition judging factor storage portion for storing a factor used for judging a deteriorated condition of the electric motor.
A power steering apparatus for assisting steering by conferring a steering assisting force according to a steering manipulation to a steering mechanism, the apparatus comprising:
- an electronic control unit for controlling the steering assisting force to be conferred to the steering mechanism;
- and
- a deteriorated condition judging factor storage portion for storing a factor used for judging a deteriorated condition of the electronic control unit.
Dependencies are inferred from the claim text.