Method for operating reference speed in anti-lock braking control and anti-lock braking system
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United States of America Patent
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Feb 3, 2004
Grant Date -
Jul 3, 2003
app pub date -
Aug 29, 2002
filing date -
Dec 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
When a method for operating a reference speed judges that an ABS control is being executed, the method judges whether the ABS control is being executed to a front wheel or not. When the method judges that the ABS control is not executed to the front wheel, the method considers that the lifting of a rear wheel does not occur, and makes the reference speed follow the fastest wheel speed V.sub.R H. When the method judges that the ABS control is being executed to the front wheel, and further judges that a reference body deceleration is a predetermined value or more, the method considers that the lifting of the rear wheel has occurred, and makes the reference speed follow a speed V.sub.R M. The speed V.sub.R M is a wheel speed calculated in accordance with the following formula: V.sub.R M=.alpha.V.sub.R L+(1-.alpha.)V.sub.R H (0<.alpha.<1), where .alpha. character V.sub.R L indicates the slowest wheel speed, and a character .alpha. indicates a default.
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