Vehicle steering apparatus

Details Vehicle steering apparatus Vehicle steering apparatus

2011-02-08

2011-02-08

Morris, Lesley (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C280S442000, C280S443000, C280S445000, C701S041000

Reexamination Certificate

active

07882925

ABSTRACT:
A vehicle steering apparatus utilizing SBW capable of downsizing an expensive turning-power motor, in which a steering mechanism20provided with a steering wheel21maneuvered by a driver is mechanically separated from a turning mechanism30for turning road wheels35, 35. A turning-power motor45of the turning mechanism30turns the road wheels35, 35based on a turning angle-steering angle ratio determined by a control portion66of a controller61in accordance with a vehicle speed of the vehicle. The turning angle-steering angle ratio increases with increasing vehicle speed until the vehicle speed reaches a predetermined value from zero; while when the vehicle speed is higher than the predetermined value, the turning angle-steering angle ratio decreases with increasing vehicle speed.

REFERENCES:
patent: 2006/0086561 (2006-04-01), Hidaka
patent: 2006/0234537 (2006-10-01), Sugitani
patent: 2005-029015 (2005-02-01), None

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