Measuring and testing – Internal combustion engine or related engine system or... – Irregular combustion
Reexamination Certificate
2007-04-26
2009-02-03
McCall, Eric S (Department: 2855)
Measuring and testing
Internal combustion engine or related engine system or...
Irregular combustion
C073S035090
Reexamination Certificate
active
07484405
ABSTRACT:
A method for calibrating an engine is provided. The engine includes a cylinder for combustion of a fuel. The method includes setting combustion parameters of the engine, detecting a combustion noise during combustion proximate to the cylinder, detecting an engine sound radiated from the engine during combustion, adjusting the combustion parameters and repeating the steps of detecting a combustion noise and detecting an engine sound. The method further includes generating a relationship between the combustion noises and the engine sounds, determining a combustion noise level that correlates to a predefined engine sound threshold from the relationship, adjusting a speed of the engine and a load on the engine and repeating the previous steps to determine a combustion noise level for each engine speed and engine load setting, and calibrating the engine using the combustion noise levels.
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Hazelton Gary J.
Redon Fabien G.
Stojkovic Boris D.
Tahry Sherif H.
Tanin Konstantin V.
GM Global Technology Operations Inc.
McCall Eric S
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