Implementation of Air-Fuel Ratio Feed-Forward Controller Considering Heat Transfer at Intake System to SI Engine 2015-01-1982
For further development of the thermal efficiency of SI engines, the robust control of the air-fuel ratio (A/F) fluctuation is one of the most important technologies, because the A/F is maintained at the theoretical constant value, which causes the increase of the catalytic conversion efficiency and the reduction of pollutant emission. We developed the robust controller of the A/F, which is the method to change the fuel injection rate by using the feed-forward (FF) controller considering the heat transfer at the intake system. The FF controller was verified under transient driving conditions for a single cylinder, and the A/F fluctuations were reduced at approximately 84%.
Citation: Ichiyanagi, M. and Suzuki, T., "Implementation of Air-Fuel Ratio Feed-Forward Controller Considering Heat Transfer at Intake System to SI Engine," SAE Technical Paper 2015-01-1982, 2015, https://doi.org/10.4271/2015-01-1982. Download Citation
Author(s):
Mitsuhisa Ichiyanagi, Takashi Suzuki
Affiliated:
Sophia Univ.
Pages: 11
Event:
JSAE/SAE 2015 International Powertrains, Fuels & Lubricants Meeting
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Air / fuel ratio
Heat transfer
Fuel injection
Engine cylinders
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