Cylinder bank work output balancing based on exhaust gas A/F...

Details Cylinder bank work output balancing based on exhaust gas A/F... Cylinder bank work output balancing based on exhaust gas A/F...

2005-01-04

2005-01-04

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

C123S090170, C123S687000, C123S692000

Reexamination Certificate

active

06837231

ABSTRACT:
A system for balancing first and second work outputs between first and second cylinder banks of an engine includes a first intake camshaft associated the first cylinder bank and a first fuel injector associated with the first cylinder bank. A controller trims a pulse-width of the first fuel injector until first and second A/F ratios of respective exhaust of the first and second cylinder banks are equivalent. The controller adjusts timing of the first intake camshaft to effect air flow into the first cylinder bank and trims the pulse-width to maintain equivalency of the first and second A/F ratios.

REFERENCES:
patent: 5140955 (1992-08-01), Sono et al.
patent: 5377654 (1995-01-01), LoRusso et al.
patent: 5469818 (1995-11-01), Yoshioka et al.
patent: 6397813 (2002-06-01), Han et al.
patent: 6408806 (2002-06-01), Sugiyama et al.
patent: 20020189602 (2002-12-01), Sugiyama et al.

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