Apparatus and method for implementing lean-burn control of inter

Details Apparatus and method for implementing lean-burn control of inter Apparatus and method for implementing lean-burn control of inter

1996-05-20

1998-02-03

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

F02D 4100

Patent

active

057133395

ABSTRACT:
An apparatus for lean-burn control of an internal combustion engine, comprising: an exhaust pressure-sensor for measuring the exhaust pressure in the exhaust system of the internal combustion engine at least when the internal combustion engine is subjected to lean combustion; a decision means for determining whether misfiring occurs in the internal combustion engine, based on the measured exhaust pressure; and a control unit for controlling the fuel/air ratio of intake mixed gas introduced into the internal combustion engine, based on the determination of the occurrence of misfiring, thereby accurately and quickly detecting and preventing the occurrence of misfiring and achieving super-lean burn control.

REFERENCES:
patent: 4683857 (1987-08-01), Yasuoka
patent: 4971010 (1990-11-01), Iwata
patent: 5193513 (1993-03-01), Marko et al.
patent: 5216881 (1993-06-01), Anlauf et al.
patent: 5349936 (1994-09-01), Uchinami

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