Cylinder to cylinder variation control

Details Cylinder to cylinder variation control Cylinder to cylinder variation control

2006-12-18

2008-11-04

Vo, Hieu T (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S104000, C701S108000, C123S568210

Reexamination Certificate

active

07447587

ABSTRACT:
Method and system for controlling cylinder to cylinder variations of undesirable emissions in exhaust gas of engines with exhaust gas recirculation. An engine model is used to predict the intake composition of the next cylinder firing based on the composition of the exhaust, as a function of time and applicable engine conditions. At least one engine parameter is adjusted to compensate for the predicted intake composition in order to minimize cylinder to cylinder variations.

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patent: 0 105 828 (1984-04-01), None
patent: 2002-364398 (2002-12-01), None
PCT International Search Report and Written Opinion for corresponding international application No. PCT/US 06/48386, Dec. 3, 2007.

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