Control apparatus for internal combustion engines

Details Control apparatus for internal combustion engines Control apparatus for internal combustion engines

1991-12-17

1993-04-27

Wolfe, Willis R.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

123435, 73116, 73 35, F02P 510, G01L 2322, G01M 1500

Patent

active

RE0342343

ABSTRACT:
An internal combustion engine control apparatus has a digital arithmetic unit to which signals are inputted from a plurality of detectors such as detectors for detecting an operational state of the engine and air fuel ratio detector and controls a fuel air ratio and ignition timing according to output signals from the arithmetic unit. The apparatus comprises by a misfire detector for detecting a misfiring state of the engine, NOx concentration detector and a controller for controlling the fuel air ratio and the ignition timing so as to fall within a tolerable stable combustion range defined by a detected misfire boundary and a detected NOx limit. The misfiring state and/or NOx concentration can be detected through detection of temperature change in the combustion chamber by a detector. The detector comprises a black body disposed in the combustion chamber and a fused silica cable mounting the black body.

REFERENCES:
patent: 3067610 (1962-12-01), Bockemuehl et al.
patent: 4437334 (1984-03-01), Laurenz
patent: 4446723 (1984-05-01), Boning et al.
patent: 4779455 (1988-10-01), Kuroiwa et al.

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