Control system and method for a valve actuator
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United States of America Patent
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-
Jun 12, 2007
Grant Date -
Mar 30, 2006
app pub date -
Nov 15, 2005
filing date -
Jul 15, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of controlling an engine having a valve actuation system is provided. The engine is started. A first parameter indicative of a first temperature of the engine is sensed. A second parameter indicative of a second temperature of the engine is sensed. The valve actuation system is disabled to prevent the implementation of a variation on conventional engine valve actuation timing in response to each of the first and second temperatures being below a predetermined value.
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