Steering System
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United States of America Patent
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N/A
Issued Date -
Mar 25, 2010
app pub date -
Sep 19, 2008
filing date -
Sep 19, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Steerable vehicle wheels (12,14) are turned under the influence of force transmitted through a steering column (22). A closed loop assembly (32) is connected with the steering column (22). The closed loop assembly (22) includes a first motor (52) which is connected with a first gear unit (56). The first gear unit (56) is operated in response to the output from a first sensor (48). A feedback sensor (66) is connected with the steering column (22) adjacent to an output from the first gear unit (56). An open loop assembly (34) is connected with the steering column (22) and includes a second motor (88) which is connected with a second gear unit (92). The second motor (88) is operated in response to the output from a second sensor (82). A manual steering gear (20) is operated to turn the steerable vehicle wheels (12,14) under the influence of force transmitted from the steering wheel (18), first motor (52) and second motor (88) through the steering column (22).
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