Fault isolation and analysis for IC engine onboard diagnostics

Author

Rizzoni, Giorgio ; Pipe, James G. ; Riggins, Robert N. ; VanOyen, Mark P.

Author_Institution

Vehicular Electron. Lab., Michigan Univ., Ann Arbor, MI, USA

fYear

1988

fDate

15-17 Jun 1988

Firstpage

237

Lastpage

244

Abstract

The development of diagnostic algorithms for the detection of misfiring cylinders in an internal combustion engine is described. The algorithms are applied to a measurement of engine angular velocity obtained by means of an inexpensive noncontacting sensor, and they are applicable to many classes of internal combustion engines, including spark and compression ignition engines. The computational efficiency of the algorithms is such that the onboard implementation of these diagnostic procedures is feasible with currently used microprocessors. Experimental work conducted on production vehicles has confirmed that it is possible to apply very robust algorithms with minimal hardware and computational overhead

Keywords

angular velocity measurement; computerised instrumentation; data analysis; fault location; internal combustion engines; IC engine onboard diagnostics; angular velocity; data acquisition; diagnostic algorithms; internal combustion engine; microprocessors; misfiring cylinders; noncontacting sensor; spark and compression; Angular velocity; Computational efficiency; Engine cylinders; Ignition; Internal combustion engines; Microprocessors; Production; Sparks; Vehicles; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1988, IEEE 38th

Conference_Location

Philadelphia, PA

ISSN

1090-3038

Type

conf

DOI

10.1109/VETEC.1988.195366

Filename

195366