Method and apparatus for executing a clutch-driven engine autostart operation
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United States of America Patent
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Feb 17, 2015
Grant Date -
Jan 30, 2014
app pub date -
Jul 25, 2012
filing date -
Jul 25, 2012
priority date (Note) -
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Abstract
A powertrain system includes an internal combustion engine, a multi-mode transmission and a driveline. A method for controlling the powertrain system in response to a command to execute an engine autostart operation during vehicle operation includes executing a clutch-driven engine autostart operation to start the engine upon determining that a present transmission output speed is greater than a minimum output speed for engine operation and upon determining that a selected clutch configured to effect a mechanical coupling between the engine and the driveline is activatable.
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