METHOD FOR CAM-SHAFT PHASE SHIFTING CONTROL USING CAM REACTION FORCE
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United States of America Patent
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Issued Date -
Mar 31, 2011
app pub date -
Jul 28, 2010
filing date -
Sep 30, 2009
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Abandoned
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Abstract
A control method for an electro-mechanical camshaft phase shifting devices in general, and a control method for an electro-mechanic camshaft phase shifting device with a self-locking mechanism in particular. The control method takes advantage of a cam shaft reaction torque in conjunction with a frictional self-locking feature of an electro-mechanical camshaft phase shifting device to simplify the control structure and to reduce the actuating torque required for the associated electric machine, consequently reducing the size of electric machine.
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