This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Dynamical Drag Torque Adaptation for Combustion Engines Using High Gain Observer
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 11, 2005 by SAE International in United States
Annotation ability available
Drag torque compensation is a part of the control units of modern gasoline and diesel engines. To achieve it, a characteristic drag torque curve as a function of the engine speed is usually saved in the ECU. Since the drag torque will not be constant during an engine's lifetime, this curve must be adapted. This paper proposes an approach to adapt the drag torque curve. The goal is achieved using a high gain observer known as a Kalman filter. The proposed method combines detection of drag torque curve errors and adaptation of the drag torque curve in one step. The effects of variable geometry turbochargers are included in the overall curve by an extension of the basic algorithm. The performance of the method is shown using data and measurements on a BMW M47D engine. As the measurements confirm, the proposed method works consistently and correctly.
CitationGrünbacher,, E., Alberer, D., del Re, L., Schinnerl, M. et al., "Dynamical Drag Torque Adaptation for Combustion Engines Using High Gain Observer," SAE Technical Paper 2005-01-0065, 2005, https://doi.org/10.4271/2005-01-0065.
- Taraza D. and Henein N. A., Friction losses in multi-cylinder diesel engines, Wayne State Univ., SAE Paper 2000-01-0921
- Stanley R., Taraza D. and Henein N., A simplified friction model of the piston ring assembly, Wayne State University, US Army TACOM, SAE Paper 1999-01-0974
- Reipert P., Voigt M., Simulation of the piston and cylinder behaviour for diesel engines, KS Kolbenschmidt GmbH, SAE Paper 2001-01-0563
- Wakuri Y., Studies on friction characteristics of reciprocating engine, Fukuoka Univ., SAE Paper 952471, 1995
- Shayler P. J. and Christian S. J., A model for the investigation of temperature, heat flow and friction characteristics during engine warm-up, University of Nottingham, SAE Paper 931153, 1993
- Kouremenos D. A., Rakopoulos C. D., Hountalas D. T. and Zannis T. K., Development of a detailed friction model to predict mechanical losses at elevated maximum combustion pressures, Mech. Eng. Dept., National Technical University of Athens SAE Paper 2001-01-0333
- Thring R. H., Engine friction modelling, Southwest Research Institute, SAE Paper 92048, 1992
- Taraza D. and Henein N. A., Experimental determination of the instantaneous frictional torque, Wayne State Univ., SAE Paper 962006, 1996
- Harari R., and Sher E., Measurement of engine friction power by using inertia tests, Ben-Gurion University of the Negev, SAE Paper 950028, 1995
- Koch F., Geiger U., and Hermsen F. G., PIFFO - piston friction force measurements during engine operation, FEV Motorentechnik SAE Paper 960306, 1996
- Scillieri J.J., Freudenberg J. S., Grizzle J. W., From Stoichiometry to Ultra Lean Burn in a Direct Injection Spark Ignition Engine Model, Proceedings of the American Control Conference, pp 3123 - 3128, 2002
- Scillieri J. J., Buckland J., Freudenberg J. S., Use of Feedforward in Idle Speed Control for a Direct Injection Spark Ignition Engine During Lean Burn, Proceedings of the American Control Conference, pp. 1419 - 1424, 2002
- Guzella L., Amstutz A., Control of Diesel Engines, IEEE Control Systems Magazine, Vol. 18, pp. 53 - 71, Oct 1998
- Pettersson M., Nielsen L., Gear Shifting by Engine Control, IEEE Control Systems Technology, Vol. 08, pp. 495 - 507, May 2000
- Siouris George M.; “An engineering approach to optimal control and estimation theory”, John Wiley & Sons, ISBN 0-471-12126-6, 1996