Determining sliding camshaft actuator pin position based on engine crankshaft angle
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United States of America Patent
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Jul 9, 2019
Grant Date -
Jan 3, 2019
app pub date -
Jun 29, 2017
filing date -
Jun 29, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A method of determining a sliding camshaft actuator pin position based on engine crankshaft angle includes commanding a sliding camshaft actuator to perform a valve step shift, and monitoring an actuator's pin position during the valve step shift command. At least one crank angle is measured when the actuator pin position reaches or exceeds at least one predetermined pin position threshold and at least one remedial action is performed when the actuator pin position does not correlate to the at least one measured crank angle.
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