Electrically operated power steering apparatus

Details Electrically operated power steering apparatus Electrically operated power steering apparatus

1994-03-08

1995-08-01

Focarino, Margaret A.

Motor vehicles

Compensating devices

B62D 504

Patent

active

054373492

ABSTRACT:
An electrically operated power steering apparatus for use in a motor vehicle includes a steering shaft axially movable in response to a manual steering force applied from a steering wheel, the steering shaft having a ball screw, a nut screw threaded over the ball screw with a plurality of balls interposed therebetween, a brushless motor for assisting in axially moving the steering shaft, the brushless motor having a rotor coupled to the nut screw and rotatably disposed around the steering shaft, and a stator spaced from the rotor by a first gap, an outer casing having a first inner circumferential surface which supports the nut screw through a bearing, a second circumferential surface which supports the stator, and an adjacent portion disposed adjacent to the brushless motor remote from the nut screw, the steering shaft being housed in the outer casing, and a power device disposed in the adjacent portion closely to the stator and electrically connected to the stator.

REFERENCES:
patent: 4415054 (1983-11-01), Drutchas
patent: 4834202 (1989-05-01), Shimizu
patent: 4868477 (1989-09-01), Anderson et al.
patent: 4934472 (1990-06-01), Bloor et al.
patent: 5092417 (1992-03-01), Oslapas
patent: 5096011 (1992-03-01), Oslapas
patent: 5257828 (1994-12-01), Miller et al.

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