Steering apparatus for vehicle

Details Steering apparatus for vehicle Steering apparatus for vehicle

2007-05-15

2010-06-15

Morris, Lesley (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C180S441000, C180S443000

Reexamination Certificate

active

07735597

ABSTRACT:
A steering apparatus for vehicle comprises a steering shaft including a first portion connected to a steering member and a second portion connected to steerable wheels; a transmission ratio variable mechanism capable of varying a transmission ratio as a ratio of a steered angle of the steerable wheels to a steering angle of the steering member; and a reaction-force compensation motor for compensating a steering reaction force of the steering member caused by the operation of the transmission ratio variable mechanism. The transmission ratio variable mechanism includes a differential mechanism for differentially rotatably interconnecting the first and second portions; and a differential-mechanism motor for driving the differential mechanism. Both an axis of a rotary shaft of the differential-mechanism motor and an axis of a rotary shaft of the reaction-force compensation motor are aligned with an axis of the steering shaft.

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