VALVETRAIN CONTROL SYSTEMS FOR INTERNAL COMBUSTION ENGINES WITH DIFFERENT INTAKE AND EXHAUST LEADING MODES
A valve control system for an internal combustion engine includes a valve actuation system. The valve actuation system actuates at least one of an intake valve and an exhaust valve between N open lift modes via lift control valves. The control module enables transitioning of at least one of the inta...
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Main Author | |
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Format | Patent |
Language | English |
Published |
12.03.2009
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Subjects | |
Online Access | Get full text |
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Summary: | A valve control system for an internal combustion engine includes a valve actuation system. The valve actuation system actuates at least one of an intake valve and an exhaust valve between N open lift modes via lift control valves. The control module enables transitioning of at least one of the intake valve and the exhaust valve between the N open lift modes. The control module defines M valve leading modes that indicate whether the intake valve transitions between the N open lift modes before, during the same time period, or after the exhaust valve. The control module selectively transitions the intake valve and the exhaust valve based on a current one of the M valve leading modes. N and M are integers greater than one. |
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Bibliography: | Application Number: US20080062920 |