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Real Time Engine Control Using STR in Feedback System
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English
Abstract
This research project involved work into the application of a Self Tuning Regulator (STR), one type of adaptive control technique used in the real-time control of internal combustion engines in order to enhance the air/fuel controllability. We concentrated on the target air/fuel and output air/fuel values, and applied adaptive control to the feedback system. With this structure, equivalence transformation of a conventional PID feedback controller to STR can be performed. Through simulation, it was confirmed the effectiveness of the controllability and disturbance robustness, and controllability verification tests were performed using real-time engine control on an actual vehicle in the FTP75 LA-4 mode. This resulted in a dramatic improvement in air/fuel controllability.
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Citation
Maki, H., Akazaki, S., Hasegawa, Y., Komoriya, I. et al., "Real Time Engine Control Using STR in Feedback System," SAE Technical Paper 950007, 1995, https://doi.org/10.4271/950007.Also In
References
- Terao M. Kanai K. “Robust Adaptive Control” Ohm Sep. 1989
- Fujii S. “Digital Adaptive Control” 28 Corona July 1989
- Landau I.D. “Adaptive Control-The Model Reference Approach” Marcel Dekker 1979
- Matsumoto M. Saitoh M. Matsumura R. Yukawa F. “Improvement of Lambda Control Based on an Exhaust Emission Simulation Model that Takes into Account Fuel Transportation in the Intake Manifold” SAE 900612
- Hasegawa Y. Akazaki S. Komoriya I. Nishimura Y. Maki H. Hirota T. “Individual Cylinder Air-Fuel Ratio Feedback Control Using an Observer” SAE 940376