Combustion Diagnostics in Methane-Fueled SI Engines Using the Spark Plug as an Ionization Probe The Ohio State Univ

Format:

Conference/Event

Author/Creator:

An, Fei, author.

Conference Name:

SAE International Congress & Exposition (1997-02-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

The process of incorporating the spark plug as a combustion probe, to perform misfire and knock detection, air to fuel ratio and spark timing control has been the subject of research for some time now. [3], [4]. The feasibility of the approach however depends on being able to correlate some characteristic of the ion current signal to the in cylinder combustion process. Shimaski and others [3] and Miyata and others [4] suggest such a relationship.The objective of this research has been to extract combustion information from the measured ion current flowing between spark plug electrodes by using various advanced signal processing methods, and to develop a methodology that will permit combustion diagnostics and possibly control based on these measurements. Tests were carried out on a single-cylinder, methane-fueled CFR engine. Results indicate that a nonlinear correlation exists between ion current and combustion pressure and that the developed signal processing methods permit extraction of useful combustion information from the measured ion current signals

Notes:

Vendor supplied data

Publisher Number:

970033

Access Restriction:

Restricted for use by site license