Electric power steering apparatus

Details Electric power steering apparatus Electric power steering apparatus

1987-07-21

1989-01-17

Mitchell, David M.

Motor vehicles

Compensating devices

7386233, 180133, B62D 504

Patent

active

047982535

ABSTRACT:
An electric power steering apparatus comprising an axial conversion mechanism includes a slider for converting the relative rotation between an input shaft and an output shaft to an axial deviation. A first sensing unit senses axial deviation of the slider. It includes a lever with a torque sensing element fixed thereto with the lever fixed at one end and supported at the other end by the slider. A second sensing unit senses the direction of rotation, or the direction and torque of rotation, of a steering wheel. A controller compares the output signals from the first and second sensing units and controls the direction and torque of rotation of an electric motor which contributes to the steering force. The comparison value between the signals from the first and second sensing units is used to stop the motor when the comparison value is outside a predetermined range.

REFERENCES:
patent: 3910106 (1975-10-01), Brady
patent: 4724711 (1988-02-01), Sakakibara et al.

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