0
Article

On-Line Adaptation of Grid-Based Look-up Tables Using a Fast Linear Regression Technique

[+] Author and Article Information
Michael Vogt

Darmstadt University of Technology, Institute of Automatic Control, Laboratory of Control Systems and Process Automation, Landgraf-Georg-Str. 4, D-64283 Darmstadt, Germanye-mail: mvogt@iat.tu-darmstadt.de

Norbert Müller

Robert Bosch GmbH Gasoline Systems, GS/ENS1, Systems Engineering, Gasoline Direct Injection, P.O. Box 30 02 40, D-70442 Stuttgart, Germany

Rolf Isermann

Darmstadt University of Technology, Institute of Automatic Control, Laboratory of Control Systems and Process Automation, Landgraf-Georg-Str., D-64283 Darmstadt, Germanye-mail: risermann@iat.tu-darmstadt.de

J. Dyn. Sys., Meas., Control 126(4), 732-739 (Mar 11, 2005) (8 pages) doi:10.1115/1.1849241 History: Received October 21, 2004; Revised December 21, 2004; Online March 11, 2005
Copyright © 2004 by ASME
Your Session has timed out. Please sign back in to continue.

References

Nelles, O., 2000, Nonlinear System Identification, Springer-Verlag, Berlin.
Brown, M., and Harris, C., 1994, Neurofuzzy Adaptive Modelling and Control. Prentice Hall, New York.
Isermann, R., 1992, Identifikation dynamischer Systeme, volume 1, Springer-Verlag, Berlin, 2nd ed.
Heiss,  M., 1996, “Error-Minimizing Dead-Zone for Basis Function Networks,” IEEE Trans. Neural Netw., 7(6), pp. 1503–1506.
Ljung, L., 1999, System Identification: Theory for the user. Prentice Hall Information and System Sciences Series, Prentice-Hall, Englewood Cliffs, NJ, 2nd ed.
Strejc,  V., 1980, “Least Squares Parameter Estimation,” Automatica, 16, pp. 535–550.
Golub, G. H., and van Loan, C. F., 1996, Matrix Computations, The Johns Hopkins University Press, Baltimore, 3rd ed.
Kaminski,  P. G., Bryson,  A. E., and Schmidt,  S. F., 1971, “Discrete Square Root Filtering. A Survey of Current Techniques,” IEEE Trans. Autom. Control, AC-16, pp. 727–735.
Anastasia, Ch. M., and Pestana, G. W., 1987, “A Cylinder Pressure Sensor for Closed Loop Engine Control (no. 870288),” in SAE Technical Paper Series.
Herden, W., and Küsell, M., 1994, “A New Combustion Pressure Sensor for Advanced Engine Management (no. 940379),” in SAE Technical Paper Series.
Inoue, T., Matsushita, S., Nakanishi, K., and Okano, H., 1993, “Toyota Lean Combustion System—the Third Generation System (no. 930873),” in SAE Technical Paper Series.
Bargende,  M., 1995, “Most Optimal Location of 50% Mass Fraction Burned and Automatic Knock Detection Components for Automatic Optimization of SI-Engine Calibrations,” MTZ Worldwide,56(10), pp. 632–638.
Matekunas, F. A., 1986, “Engine Combustion Control With Ignition Timing by Pressure Ratio Management,” U.S. Patent, 4,622,939.

Figures

Grahic Jump Location
General structure of a LFFC (learning feedforward controller) for the process P
Grahic Jump Location
Grid-based placement of the interpolation nodes of a two-dimensional look-up table
Grahic Jump Location
Areas for interpolation within a two-dimensional look-up table
Grahic Jump Location
Some exemplary basis functions Φk,l of a 5×5 look-up table with equidistant grid
Grahic Jump Location
Estimation of interpolation nodes’ heights from measurement data: arbitrarily positioned measurement data points (upper diagram) and estimated look-up table (lower diagram)
Grahic Jump Location
Flow chart of the modified RLS algorithm
Grahic Jump Location
Look-up table optimized by different algorithms
Grahic Jump Location
Sum-squared-errors for different values of np
Grahic Jump Location
Pressure volume diagram of an ideal constant-volume combustion cycle
Grahic Jump Location
Approximation of MFB in comparison to thermodynamic analysis. The location of 50% MFB is to be controlled by appropriate settings of the point of ignition.
Grahic Jump Location
Upper diagram: measured cylinder pressure signals and reconstructed polytrope. Lower diagram: calculated crank angle locations of 50% MFB at nmot=3000 rpm and 50% load.
Grahic Jump Location
Structure of the adaptive feedforward ignition control system (other inputs and outputs of engine control are not shown here)
Grahic Jump Location
Control performance of the ignition control system during three equivalent load changes. The adaptive look-up table is initialized with zero; after 50 s the adaptive feedforward control is activated.
Grahic Jump Location
Conventional ignition map (upper diagram) and adaptive offset map (lower diagram) of the second cylinder after a training sequence

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In