Vehicle steering controller and method

Details Vehicle steering controller and method Vehicle steering controller and method

2006-11-17

2010-06-01

Morris, Lesley (Department: 3611)

Motor vehicles

Steering gear

With alternate emergency power means

C180S402000, C180S444000, C180S446000

Reexamination Certificate

active

07726437

ABSTRACT:
A vehicle steering device and control method for use in steer-by-wire steering systems. A steering instrument is operable to receive input from a driver and a turning device is operable to turn at least one wheel. A selectively engageable backup clutch is positioned between the steering instrument and the turning device. Engagement of the backup clutch results in a mechanical connection between the steering instrument and the turning device for assisting control of the at least one wheel, and release of the backup clutch results in a separation of the steering instrument and the turning device for steer-by-wire control of the at least one wheel. A controller is operable to switch from the steer-by-wire control to the assisting control when the backup clutch engages during operation of the steer-by-wire control.

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