Determination of engine misfiring using magnetoelastic torque sensor

Author

Nishibe, Yuji ; Nonomura, Yutaka ; Tsukada, Koji ; Takeuchi, Masaharu ; Miyashita, Masanori ; Ito, Koji

Author_Institution

Toyota Central Res. & Dev. Labs. Inc., Aichi, Japan

Volume

47

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

760

Lastpage

765

Abstract

A method for the determination of engine misfiring has been achieved with a magnetic-head-type torque sensor based on the magnetoelastic effect. Sensor signal treatment using fast Fourier transformation (FFT) is introduced into this method to detect the misfiring cylinders. It has been confirmed that the determination of the misfiring cylinders is successful experimentally in a multicylinder engine such as the four-cycle engine having eight cylinders. In addition, this method is superior in accuracy to the conventional method with rotation speed detection, as well as ease of sensor installation

Keywords

automotive electronics; fast Fourier transforms; internal combustion engines; magnetic sensors; magnetoelastic effects; magnetostrictive devices; torque measurement; automotive multicylinder engine; fast Fourier transformation; magnetic head; magnetoelastic torque sensor; misfiring; signal treatment; Automotive engineering; Coils; Engine cylinders; Fluctuations; Indium tin oxide; Magnetic sensors; Magnetostriction; Sensor phenomena and characterization; Shafts; Torque;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.744343

Filename

744343