Different Strategies for Transient Control of the Air-Fuel Ratio in a SI Engine

2000-01-2835

10/16/2000

Event
International Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
This paper compares several strategies for air-fuel ratio transient control. The strategies are: A factory standard look-up table based system (a SAAB Trionic 5), a feedback PI controller with and without feed-forward throttle correction, a linear feed-forward control algorithm, and two nonlinear feed-forward algorithms based on artificial neural networks. The control strategies have been implemented and evaluated in a SAAB 9000 car during a transient driving test, consisting of an acceleration in the second gear from an engine speed of 1500 rpm to 3000 rpm. The best strategies are found to be the neural network based ones, followed by the table based factory system. The two feedback PI controllers offer the poorest performance.
Meta TagsDetails
DOI
https://doi.org/10.4271/2000-01-2835
Pages
9
Citation
Blomqvist, D., Byttner, S., Holmberg, U., and Rögnvaldsson, T., "Different Strategies for Transient Control of the Air-Fuel Ratio in a SI Engine," SAE Technical Paper 2000-01-2835, 2000, https://doi.org/10.4271/2000-01-2835.
Additional Details
Publisher
Published
Oct 16, 2000
Product Code
2000-01-2835
Content Type
Technical Paper
Language
English