Method and system for engine braking in an internal combustion engine with exhaust pressure regulation and turbocharger control
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United States of America Patent
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Jul 22, 2003
Grant Date -
Nov 28, 2002
app pub date -
Sep 24, 2001
filing date -
May 22, 2001
priority date (Note) -
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Abstract
The present invention is directed to a system and method for controlling an engine braking system having an engine with at least one intake and exhaust valve, intake and exhaust manifolds, a turbocharger connected to the intake and exhaust manifolds, and at least one pressure regulation valve. The method may comprise the steps of measuring a value of an engine parameter; adjusting the pressure of the exhaust manifold responsive to the measured engine parameter value; actuating the at least one exhaust valve; and adjusting a pressure gradient across the turbocharger.
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