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Estimation of Air Fuel Ratio of Individual Cylinders in SI Engines by Means of MISiC Sensor Signals in a Linear Regression Model
Technical Paper
2002-01-0847
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Metal insulator silicon carbide field-effect devices, MISiC sensors, with catalytic metal gates of TaSix + Pt have been evaluated as fast linear lambda detectors. Application areas are for example engine cold start and cylinder specific lambda transient detection. The sensor is placed in the exhaust manifold system, where the branches from the different cylinders are joined. By using a linear regression model the MISiC sensor could predict a lambda value, chosen randomly as one of six values between 0.93 and 1.03. Specially built laboratory equipment, Moving Gas Outlet (MGO), was used to estimate the sensor response time.
Authors
- Olle Larsson - Mecel AB
- Anders Göras - Mecel AB
- Jan Nytomt - Mecel AB
- Christian Carlsson - Mecel AB
- Anita Lloyd Spetz - S-SENCE and Div. of Applied Physics, Linköping Univ.
- Tom Artursson - S-SENCE and Div. of Applied Physics, Linköping Univ.
- Martin Holmberg - S-SENCE and Div. of Applied Physics, Linköping Univ.
- Ingemar Lundström - S-SENCE and Div. of Applied Physics, Linköping Univ.
- Lars-G. Ekedahl - S-SENCE and Div. of Applied Physics, Linköping Univ.
- Peter Tobias - Center for Sensor Materials, Michigan State Univ.
Citation
Larsson, O., Göras, A., Nytomt, J., Carlsson, C. et al., "Estimation of Air Fuel Ratio of Individual Cylinders in SI Engines by Means of MISiC Sensor Signals in a Linear Regression Model," SAE Technical Paper 2002-01-0847, 2002, https://doi.org/10.4271/2002-01-0847.Also In
Electronic Engine Controls 2002: Electronics and Information Gathering
Number: SP-1690; Published: 2002-03-04
Number: SP-1690; Published: 2002-03-04
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