Motor vehicles – Steering gear – With electric power assist
Reexamination Certificate
2004-05-25
2008-05-27
Morris, Lesley D. (Department: 3611)
Motor vehicles
Steering gear
With electric power assist
Reexamination Certificate
active
07377356
ABSTRACT:
A steering system (10) for a vehicle including a steerable wheel (12) defining a steering angle (20), a powered actuator (14) controlling the steering angle (20) and a steering wheel (16) providing a driver input control angle. A ratio of the driver input control angle to the steering angle (20) defines a steering ratio. The steering system (10) also includes a controller (18) selectively varying the steering ratio that directs the powered actuator (14) to change the steering angle (20) along one of at least two steering ratio graphs, and a control (60) manually selectable by a driver of the vehicle that communicates with the controller18for selecting one of the steering ratio graphs. A first one of the graphs (50) varies as a function of the driver input control angle in a manner that is different than that of a second one of the graphs (52).
REFERENCES:
patent: 4522279 (1985-06-01), Kanazawa
patent: 4573705 (1986-03-01), Kanai et al.
patent: 4574905 (1986-03-01), Asano et al.
patent: 4658927 (1987-04-01), Kanazawa
patent: 4705135 (1987-11-01), Kawamoto et al.
patent: 4768602 (1988-09-01), Inoue et al.
patent: 4914592 (1990-04-01), Callahan et al.
patent: 5084821 (1992-01-01), Ohsuga et al.
patent: 5265019 (1993-11-01), Harara et al.
patent: 5887675 (1999-03-01), Hackl et al.
patent: 6108599 (2000-08-01), Yamamoto et al.
patent: 0853029 (1998-07-01), None
patent: 1325857 (2003-07-01), None
patent: 03024764 (2003-03-01), None
patent: 2005028283 (2004-03-01), None
Hulme Ian
Turner Marcus
Arce-Diaz Marlon
Brown Gregory P.
Ford Global Technologies LLC
Morris Lesley D.
Price Heneveld Cooper DeWitt & Litton LLP
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