DocumentCode :
3613837
Title :
Delta air-charge anticipation for mass air flow and electronic throttle control based systems
Author :
S. Magner;M. Jankovic
Author_Institution :
Res Lab., Ford Motor Co., Dearborn, MI, USA
Volume :
2
fYear :
2002
fDate :
6/24/1905 12:00:00 AM
Firstpage :
1407
Abstract :
Cylinder air charge estimators, that account for the air flow dynamics of the engine, are an essential feature to engine emission control systems. These estimators must be further augmented to anticipate the air charge several cylinder events beyond the current estimate due to practical fuel injector limitations. The delay between the commanded and measured throttle position of an electronic throttle controller (ETC) can be used to improve the air charge anticipation algorithms. We develop an air charge algorithm that exploits a one cylinder event ahead prediction of the throttle position to determine air charge one or two cylinder events in the future. We explore a practical method of obtaining the prediction of throttle using an ETC as well as more sophisticated methods to determine the extent of throttle prediction accuracy that is possible over a range of prediction times.
Keywords :
"Weight control","Control systems","Engine cylinders","Fuels","Manifolds","Valves","Delay estimation","Extrapolation","Steady-state","Laboratories"
Publisher :
ieee
Conference_Titel :
American Control Conference, 2002. Proceedings of the 2002
ISSN :
0743-1619
Print_ISBN :
0-7803-7298-0
Type :
conf
DOI :
10.1109/ACC.2002.1023218
Filename :
1023218
Link To Document :
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