Advanced Engine Misfire Detection for SI-Engines

970855

02/24/1997

Event
International Congress & Exposition
Authors Abstract
Content
This paper presents a system concept for detecting combustion misfire. The relevant research grew out of the more stringent requirements for On-Board Diagnostic systems (OBDII) mandated by the California Air Resources Board (CARB), effective as of model year 1997 onward. The system concept is based on evaluation of variations in crankshaft speed. Processes using engine roughness are applied in non-critical operating areas and/or on engines with a small number of cylinders. The modulation process is used in more critical areas. Research was done using a 12-cylinder engine and indicated the potential to comply with the California Air Resources Board's regulations for the model year (MY) 1997 and later.
Meta TagsDetails
DOI
https://doi.org/10.4271/970855
Pages
9
Citation
Förster, J., Lohmann, A., Mezger, M., and Ries-Müller, K., "Advanced Engine Misfire Detection for SI-Engines," SAE Technical Paper 970855, 1997, https://doi.org/10.4271/970855.
Additional Details
Publisher
Published
Feb 24, 1997
Product Code
970855
Content Type
Technical Paper
Language
English