Vehicular steering apparatus with capability of providing...

Motor vehicles – Steering gear – With electric power assist

Reexamination Certificate

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C180S443000, C701S041000

Reexamination Certificate

active

07913803

ABSTRACT:
A vehicular steering apparatus according to the invention includes a steering angle correction mechanism, a steering power assist mechanism, and a controller. The steering angle correction mechanism works to provide a correction steering angle to a steerable road wheel of a vehicle. The steering power assist mechanism is configured to provide the steerable road wheel of the vehicle with a base assist power and a correction assist power in a first operation mode and the base assist power and a limited correction assist power in a second operation mode. The controller works to control the steering angle correction mechanism to provide the correction steering angle to the steerable road wheel. The controller also works to control the steering power assist mechanism to operate in the first operation mode if the absolute value of the correction steering angle is greater than a predetermined value and in the second operation mode otherwise.

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Search Report from European Patent Office issued on May 4, 2006 for the corresponding European patent application No. 05023326.1-2425 (a copy thereof).
Office Action dated Jul. 6, 2009 issued from the Japan Patent Office for counterpart application No. 2004-309687 (English translation enclosed).

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