NDLI: Predictive fuel dynamic control during engine start and crank-to-run transition for port fuel injected gasoline engines

Content Provider	IEEE Xplore Digital Library
Author	Qi Ma Yurkovich, S. Dudek, K.P.
Copyright Year	2008
Description	Author affiliation: Gen. Motors Powertrain Adv. Eng., Portland, MI (Qi Ma)
Abstract	Automotive emission regulations have sharply increased the calibration effort required to tune conventional fuel control algorithms for engine start and crank-to-run transition. This paper presents a model-based control approach with predictive fuel dynamics control that mitigates some of the calibration effort. Instead of using a static equivalence ratio blending approach to compute the fuel command during start and crank-to-run transition, the method suggests using scheduled in-cylinder fresh air charge prediction, individual cylinder fuel dynamics compensation (via direct inversion of a fuel dynamics model), and lost fuel correction. Misfire and poor starts are detected and mitigated using intelligent mode scheduling of the in-cylinder fresh air charge predictor, which includes special modes for misfire and poor start. The result is fault tolerant predictive fuel control, even in the face of misfire or poor starts. The scheme has been validated on production L4 and V8 engines over a wide range of operating conditions, and the paper presents selected results from that validation study.
Starting Page	994
Ending Page	1001
File Size	294715
Page Count	8
File Format	PDF
ISBN	9781424420780
ISSN	07431619
DOI	10.1109/ACC.2008.4586621
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Fuels Petroleum Vehicle dynamics Calibration Predictive models Processor scheduling Automotive engineering Dynamic scheduling Engine cylinders Fault tolerance
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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