Internal combustion engine having electrohydraulic valve control and method for operating said internal combustion engine
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United States of America Patent
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Dec 15, 2015
Grant Date -
Sep 27, 2012
app pub date -
Nov 25, 2010
filing date -
Dec 8, 2009
priority date (Note) -
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Abstract
An internal combustion engine (4) having an electrohydraulic valve control (1) for the variable lift drive of a gas exchange valve (3) is provided. The hydraulic valve (15) is actuated by an electronic control module (16) such that a gas exchange valve stroke (19) required for a charge change is adjusted during the cold start phase of the internal combustion engine (4) within a minimum stroke height (h-min) and a maximum closing time (α-max). A method for operating the internal combustion engine (4) is also provided.
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