Stop-start control systems for engines with fully flexible valve actuation system
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United States of America Patent
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Jan 19, 2016
Grant Date -
May 2, 2013
app pub date -
Nov 1, 2011
filing date -
Nov 1, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicle system includes a stop-start command module and a cylinder control module. The stop-start command module is configured to detect an autostop request and generate a mode signal based on the autostop request. The cylinder control module is configured to sequentially disable cylinders of an engine during an autostop mode based on the mode signal. The cylinders of the engine include respective intake valves and exhaust valves. The cylinder control module is configured to maintain the intake valves in a closed state and the exhaust valves in an open state during the autostop mode and during multiple cycles of a crankshaft of the engine.
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