Electric power steering device

Details Electric power steering device Electric power steering device

1998-04-08

2000-10-10

Boehler, Anne Marie

Motor vehicles

Steering gear

With electric power assist

74388PS, 74397, B62D 504

Patent

active

061291714

ABSTRACT:
In an electric power steering device, a rotating member is screwed onto a rack, which meshes with a pinion rotated by steering manipulation, via a screw mechanism. The rotation of a motor for generating steering assistance force is transmitted to the rotating member via a gear mechanism. The vehicle is turned by longitudinal movement of the rack caused by rotation of the pinion. The steering assistance force is applied in the longitudinal direction of the rack by driving the rotating member by means of the motor. The gear ratio of the gear mechanism is set such that the speed of rotation of the rotating member is equal to or greater than the speed of rotation of the motor.

REFERENCES:
patent: 2235176 (1941-03-01), Tangen
patent: 4380991 (1983-04-01), Richter et al.
patent: 4522278 (1985-06-01), Kitagawa et al.
patent: 4593780 (1986-06-01), Saito
patent: 4825972 (1989-05-01), Shimizu
patent: 5711396 (1998-01-01), Joerg et al.
patent: 5738181 (1998-04-01), Kato

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