Estimation of Air Fuel Ratio of Individual Cylinders in SI Engines by Means of MISiC Sensor Signals in a Linear Regression Model 2002-01-0847
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.
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. Download Citation
Olle Larsson, Anders Göras, Jan Nytomt, Christian Carlsson, Anita Lloyd Spetz, Tom Artursson, Martin Holmberg, Ingemar Lundström, Lars-G. Ekedahl, Peter Tobias
Mecel AB, S-SENCE and Div. of Applied Physics, Linköping Univ., Center for Sensor Materials, Michigan State Univ.
SAE 2002 World Congress & Exhibition
Electronic Engine Control Technologies-PT-73, Electronic Engine Controls 2002: Electronics and Information Gathering-SP-1690, SAE 2002 Transactions Journal of Engines-V111-3