Automotive power steering gear

Details Automotive power steering gear Automotive power steering gear

1991-12-16

1993-07-13

Hill, Mitchell J.

Motor vehicles

Compensating devices

74388PS, B62D 504

Patent

active

052264980

ABSTRACT:
An automotive power steering gear has a pair of permanent magnet driving discs supported on a housing of the steering gear and continuously rotated in opposite directions corresponding to right and left turn rotation of an output shaft of the steering gear. A soft, magnetically permeable driving disc is supported on the housing between the driving discs for rotation and for bodily shiftable movement toward and away from respective ones of the driving discs. The driven disc is drivingly connected to the output shaft of the steering gear. When steering effort is applied at a steering wheel connected to an input shaft of the steering gear, a cam and follower apparatus bodily shifts the driven disc toward the one of the driving discs rotating in the direction corresponding to the direction of the applied effort. The rotating magnetic flux field of the driving disc intercepts the driven disc and induces thereon a magnetic steering assist torque in the direction of the applied effort.

REFERENCES:
patent: 4437531 (1984-03-01), Urabe
patent: 4771846 (1988-09-01), Venable et al.
patent: 4886137 (1989-12-01), Pawlak et al.
patent: 4886138 (1989-12-01), Graber et al.

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