Online Cylinder Fault Diagnostics for Internal Combustion Engines

Document Type

Article

Publication Date

6-1990

Publication Title

IEEE Transactions on Industrial Electronics

Volume

37

Issue

3

First page number:

221

Last page number:

226

Abstract

The ability to continuously monitor internal combustion engines for the existence and location of faults can improve engine reliability and reduce operating costs. The diagnostics method is based on recording the engine speed fluctuations at the flywheel and at the front end of the engine over one combustion cycle. From the speed fluctuations, the cylinder-to-cylinder variations of the net engine torque are computed. The performance deterioration of an individual cylinder is detected as a drop of computed torque. The diagnostic hardware consists of a digital engine speed data acquisition system and an embedded controller and is suited for in-vehicle installation. The method, suited for any multicylinder engine, detects the location and severity of faults during normal engine operation. Adjustments for individual engines of the same class are not required

Keywords

Fault location (Engineering); Internal combustion engines—Cylinders; Internal combustion engines – Maintenance and repair

Disciplines

Engineering | Heat Transfer, Combustion | Mechanical Engineering

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

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