Electric jack stroke limit detection method and device
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United States of America Patent
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Apr 3, 2007
Grant Date -
Apr 20, 2006
app pub date -
Sep 9, 2005
filing date -
Oct 18, 2004
priority date (Note) -
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Abstract
A method and device for detecting the stroke limit of an electric motor-driven jack while the jack is being used to adjust the attitude of a mobile platform. A controller is programmed to detect when an electric jack motor has driven a jack to a jack stroke limit by monitoring one or more jack motor power draw characteristics and comparing those values to known values associated with the driving of a jack at or near the end of a jack stroke.
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