Four wheel steering apparatus

Details Four wheel steering apparatus Four wheel steering apparatus

1995-06-07

1996-04-16

Teska, Kevin J.

Boots, shoes, and leggings

280 91, 180 791, 180142, B60K 1734

Patent

active

055089216

ABSTRACT:
A four-wheel steering apparatus comprises a front wheel steering angle sensor for detecting the steering angles given to the front wheels, a vehicle speed sensor for detecting vehicle speeds, a rear wheel output shaft for giving steering angles to the rear wheels by being displaced it in the axial direction, a centering spring having the resiliency enabling the rear wheel output shaft to be returned to the neutral position, an electric motor for causing the rear wheel output shaft to be displaced in the axial direction against the resiliency of the centering spring, and a controller for controlling the energizing of the electric motor on the basis of the signals from the front wheel steering sensor and vehicle speed sensor, the controller adjusting the output torque of the electric motor on the basis of the signals from the front wheel steering sensor and vehicle speed sensor to control the rear wheel output shaft to be displaced for a desired amount by open loop control.

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Patent Abstracts of Japan, vol. 14, No. 251 (M-979) 29 May 1990.

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