Real Time Engine Control Using STR in Feedback System

Paper #:
  • 950007

Published:
  • 1995-02-01
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.
Pages:
9
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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