Adaptive compensation of fuel dynamics in an SI engine using a switching EGO sensor
- 19 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 661-666
- https://doi.org/10.1109/cdc.1995.478988
Abstract
Current engine controllers employ a feedforward compensator to eliminate the effects of fuel dynamics (“wall-wetting”) on the air-fuel ratio trace. Uncompensated or improperly compensated fuel dynamics may cause significant A/F excursions during transient operations, accompanied by increased emissions levels. This paper describes the development of an adaptive algorithm for transient fuel compensation using only a switching exhaust gas oxygen (EGO) sensor, in order to ensure proper compensation of fuel dynamics in spite of initial miscalibrations, vehicle-to-vehicle variability, changing dynamics due to aging (intake valve deposits build up), or changing dynamics due to changing fuel properties. Experimental results demonstrate the effectiveness of the proposed algorithm Author(s) Moraal, P.E. Ford Res. Labs., Dearborn, MI, USAKeywords
This publication has 1 reference indexed in Scilit:
- A bit of information on identification with a zirconia sensorPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005