Predicting the Port Air Mass Flow of SI Engines in Air/Fuel Ratio Control Applications 2000-01-0260
With the tightening of exhaust emission standards, wide bandwidth control of the air/fuel ratio (AFR) of spark ignition engines has attracted increased interest recently. Unfortunately, time delays associated with engine operation (mainly injection delays and transport delays from intake to exhaust) impose serious limitations to the achievable control bandwidth. With a proper choice of sensors and actuators, these limitations can be minimized provided the port air mass flow can be accurately predicted ahead in time.
While the main objective of this work is to propose a complete AFR controller, the main focus is on the problems associated with port air mass flow prediction.
Citation: Chevalier, A., Vigild, C., and Hendricks, E., "Predicting the Port Air Mass Flow of SI Engines in Air/Fuel Ratio Control Applications," SAE Technical Paper 2000-01-0260, 2000, https://doi.org/10.4271/2000-01-0260. Download Citation
Author(s):
Alain Chevalier, Christian Winge Vigild, Elbert Hendricks
Affiliated:
Ford Motor Co., Technical University of Denmark
Pages: 30
Event:
SAE 2000 World Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Electronic Engine Controls 2000: Controls-SP-1500, SAE 2000 Transactions Journal of Engines-V109-3
Related Topics:
Spark ignition engines
Exhaust emissions
Environmental regulations and standards
Air / fuel ratio
Sensors and actuators
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