Vehicle steering apparatus

Details Vehicle steering apparatus Vehicle steering apparatus

2005-10-17

2009-06-16

Hurley, Kevin (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C701S042000

Reexamination Certificate

active

07546896

ABSTRACT:
A vehicle steering apparatus is comprised of an assist motor, a steering torque sensor, a steering angle sensor, and a controller. The controller has a torque producing section for estimating a virtual steering model input torque from a torque sensor detection value and a steering angle detection value, a virtual steering model of representing a desired steering characteristic which receives the virtual steering model input torque and outputs a target steering angle of a steering column shaft, and a steering angle servo for controlling an output of the assist motor so that the steering angle detection angle follows the target steering angle.

REFERENCES:
patent: 6308122 (2001-10-01), Nishizaki et al.
patent: 6415212 (2002-07-01), Nishizaki et al.
patent: 6705424 (2004-03-01), Ogawa et al.
patent: 6823245 (2004-11-01), Sugitani et al.
patent: 6854558 (2005-02-01), Pauly et al.
patent: 7031813 (2006-04-01), Sugiyama et al.
patent: 9-142330 (1997-06-01), None
patent: 2002-46638 (2002-02-01), None
patent: 2003-81119 (2003-03-01), None
Masato Abe, “Steering System and Vehicle Motion”, Vehicle Dynamics and Control, 1992, Chapter 5, Sankaidoo, Tokyo, Japan.

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