Dual-circuit steer-by-wire steering system comprising a common cradle
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United States of America Patent
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Feb 19, 2008
Grant Date -
May 19, 2005
app pub date -
Dec 4, 2002
filing date -
Dec 11, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a steer-by-wire steering system comprising a hydraulic control unit that acts on the steerable wheels (1, 20), the control unit having at least one cradle (4, 23), which is displaceably mounted on at least one guide rod (5, 24) that passes through the respective cradle (4, 23). The respective cradle (4, 23) and the corresponding guide rod(s) (5, 24) form working chambers (A.sub.11, A.sub.12, A.sub.21, A.sub.22) of a piston-cylinder system, whereby each respective guide rod (5, 24) has at least one channel (KA.sub.11, KA.sub.12, KA.sub.21, KA.sub.22), each terminating in the vicinity of a working chamber (A.sub.11, A.sub.12, A.sub.21, A.sub.22). The cradle or cradles (4, 23) adjust the steerable wheels (1, 20) directly or by means of steering tie rods (2, 21).
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