ENGINE HAVING SUPERCHARGED INTAKE SYSTEM WITH CDA VALVE SYSTEM/ARRANGEMENT AND METHODS RELATED THERETO
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United States of America Patent
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Issued Date -
Jun 7, 2012
app pub date -
Dec 7, 2010
filing date -
Dec 7, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Featured is a method for controlling operation of an internal combustion engine having a supercharger, a bypass, a cylinder de-activation (CDA) system and a throttle body, where the supercharger is configured and arranged so as to be selectively operable. Such a method includes determining which of three operating modes is appropriate for a given set of operating conditions and controlling each of the supercharger, the bypass, the CDA system and the throttle body based on the determined operating mode. In the first and second operating modes, the supercharger is not operable and the bypass is opened. In the third mode, the supercharger is operable and the bypass is closed. In the first and third modes, the CDA system is configured so all cylinders are operational. In the second mode, the CDA system is configured so certain cylinders are in a deactivated state and so other cylinders remain operable.
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