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An Event-Based Transient Fuel Compensator with Physically Based Parameters
Technical Paper
1999-01-0553
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
An event-based transient fuel compensator (TFC) algorithm was developed for production application on SPFI gasoline engines.
The independent parameters of the TFC were related to fundamental mass-transfer principles from the research of Gilliland and Sherwood [1] to simplify cold-driveability and emissions calibration activities. A compact intake valve temperature model was developed to further simplify calibration. Digital Control Theory was applied to the calibration structure of the algorithm to clarify the relationship between compensator stability and parameter settings.
In its final production algorithm form on a 2.4L DOHC engine application, the TFC met the required subjective cold-driveability requirements and emission standards with a significant reduction in transient fuel calibration complexity.
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Citation
Maloney, P., "An Event-Based Transient Fuel Compensator with Physically Based Parameters," SAE Technical Paper 1999-01-0553, 1999, https://doi.org/10.4271/1999-01-0553.Also In
Electronic Engine Controls 1999: Neural Networks, Diagnostic and Electronic Hardware, and Controls
Number: SP-1419; Published: 1999-03-01
Number: SP-1419; Published: 1999-03-01
References
- Gilliland, E.R. Sherwood T.K. “Diffusion of Vapors into Air Streams” Industrial and Engineering Chemistry 26 5 516 523 May 1934
- Aquino, C.F. “Transient A/F Control Characteristics of the 5 Liter Central Fuel Injection Engine” SAE 810494 1981
- Matsumura, T. Nanyoshi Y. “New Fuel Metering Technique for Compensating Wall Flow in a Transient Condition Using the Model-Matching Method” JSAE Review 10 3 1989
- Hendricks et. al “Nonlinear Transient Fuel Film Compensation (NTFC)” SAE 930767 1993
- Turin, R. “Automated Calibration Method for a Model-Based Fuel Compensator” General Motors Research Report No. EL-432 1995