Non-Contact Diagnosis of Internal Combustion Engine Faults Through Remote Sensing Government and Commerical Systems Div., RCA Corporation

Format:

Conference/Event

Author/Creator:

Hadden, S. C., author.

Conference Name:

1976 Automotive Engineering Congress and Exposition (1976-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1976

Summary:

A method has been developed for obtaining engine speed and diagnostic information for a diesel engine without mechanical or electrical connections to the engine. This non contact technique has the potential for making diesel engine power measurement and fault detection extremely simple and rapid. The method employs a single transducer held near the engine and special purpose circuitry which extracts the engine speed information from the signal and performs spectral analysis for diagnostic purposes. Circuit outputs are engine speed, a digital pulse train with repetition rate proportional to engine speed, and a harmonic ratio which sensitively indicates the degree of non-uniformity among engine cylinders.By this method diesel engines with minor compression losses or fuel injection faults can readily be identified without vehicle contact in less than one minute of testing. With additional signal processing, the power producing capability of the engine can also rapidly be evaluated

Notes:

Vendor supplied data

Publisher Number:

760146

Access Restriction:

Restricted for use by site license