Internal-combustion engines – Engine speed regulator – Idle speed control
Patent
1996-04-26
1997-12-30
Nelli, Raymond A.
Internal-combustion engines
Engine speed regulator
Idle speed control
F02M 300
Patent
active
057018650
ABSTRACT:
A method of adjusting idle spark for an individual cylinder of an internal combustion engine in an automotive vehicle including the steps of determining a crankshaft acceleration for an individual cylinder of the internal combustion engine and determining an average acceleration error for the individual cylinder based on the determined crankshaft acceleration. The method also includes the steps of determining an adaptive spark advance for the individual cylinder based on the determined average acceleration error and determining a new spark advance for the individual cylinder based on the determined adaptive spark advance and a nominal spark advance. The method further includes the steps of adjusting idle spark for the individual cylinder based on the new spark advance for the individual cylinder.
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Jinil Park, Kyoung Seok Park, Jong Hwa Lee, and Sangken Kauh, Adaptive Control of Individual Cylinder Ignition Timing for Improvement of Idle Stability.
Ehlers Jeffery C.
McCombie Jay C.
Soltis Dennis A.
Thomas Christopher P.
Weber Gregory T.
Calcaterra Mark P.
Chrysler Corporation
Nelli Raymond A.
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