Optical sensors for automotive engine-research applications

Author

Berg, T. ; Voges, H. ; Thiele, O. ; Beushausen, V. ; Hentschel, W. ; Kallmeyer, F.

Author_Institution

LaVision GmbH, Goettingen

fYear

2005

fDate

Oct. 30 2005-Nov. 3 2005

Abstract

In this work, we present applications of optical sensors for crank angle resolved determination of air-fuel ratio (lambda-value) during stratified operation of internal combustion engines. Different types of sensors for measurement of the local lambda-value at the spark plug position and the mixture temperature with high temporal resolution are demonstrated. The sensors are based on mid-infrared (MIR) absorption, spontaneous Raman scattering (SRS) and tunable diode laser absorption spectroscopy (TDLAS). The sensors are incorporated into modified spark plugs in order to allow operation in production engines under realistic conditions

Keywords

Raman spectra; crankcases; infrared spectroscopy; internal combustion engines; optical sensors; MIR absorption; TDLAS; air-fuel ratio; automotive engine-research; crank angle resolved determination; high temporal resolution; internal combustion engines; optical sensors; spark plug position; spontaneous Raman scattering; tunable diode laser absorption spectroscopy; Absorption; Automotive engineering; Internal combustion engines; Optical sensors; Plugs; Position measurement; Raman scattering; Sparks; Spectroscopy; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2005 IEEE

Conference_Location

Irvine, CA

Print_ISBN

0-7803-9056-3

Type

conf

DOI

10.1109/ICSENS.2005.1597866

Filename

1597866