Driver selectable steering ratios

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 an...

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Bibliographic Details
Main Authors TURNER MARCUS, HULME IAN
Format Patent
LanguageEnglish
Published 27.05.2008
Subjects
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
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Summary: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 controller 18 for 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 ).
Bibliography:Application Number: US20040853046