Rack and pinion steering gear with electric power assistance

Details Rack and pinion steering gear with electric power assistance Rack and pinion steering gear with electric power assistance

1987-07-08

1988-11-22

Love, John J.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

180 791, 180148, B62D 504

Patent

active

047859016

ABSTRACT:
A rack-pinion type electrically powered steering apparatus is provided with an electronic control circuit adapted to control a motor driving current which is applied to a motor for power assistance, in response to a steering load characteristic and/or a vehicle speed characteristic. The steering apparatus is also provided with a rack end proximity sensor adapted to detect a position adjacent the both ends of the rack during a steering operation, and a device for providing the motor driving current with an attenuation characteristic in response to the detected signal from said rack end proximity sensor.

REFERENCES:
patent: 4558759 (1985-12-01), Baatrup
patent: 4593780 (1986-06-01), Saito

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