Apparatus and method for controlling variable valve in internal combustion engine
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United States of America Patent
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-
Mar 16, 2004
Grant Date -
May 30, 2002
app pub date -
Nov 21, 2001
filing date -
Nov 27, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An engine temperature and an engine start are detected, and if a lower temperature engine start of a predetermined temperature or lower is detected, while controlling the closing timing of an intake valve to the vicinity of the intake bottom dead center with respect to a reference valve operation characteristics to be normally set, valve overlapped amount is controlled to be equal to or less than a valve overlap amount in said reference valve operation characteristics.
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