This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Model-Based Idle Speed Control for a High Performance Engine
Technical Paper
2003-01-0358
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A study, for future applications, of a model-based Idle Speed Control (ISC) system for the L535 Lamborghini 6.2L-48 valve V12 gasoline engine is presented in this paper.
Main features of the controller are:
- Real-time auto-adaptation;
- Synchronization of Throttle Angle (TA) opening with Spark Advance (SA) timing, through model-based Drive-by-Wire (DBW) control strategies;
- Auto-adaptive management of the absolute pressure levels in the two, completely separated, intake manifolds;
- Feed-forward compensation for known loads;
- Integrated Air-to-Fuel Ratio (AFR) control at idle.
Design targets are:
- Idle speed error from the nominal value imperceptible by the driver, considering that this study is for a high performance engine;
- Emissions reduction;
- Minimization of the engine speed undershoot (overshoot) when applying (removing) unknown loads.
The controller has been designed by first considering the issues associated with a Lamborghini engine running at idle (comfort in the driver's cabin, exhaust emissions, engine sound, fuel consumption) and by subsequently determining the parameters to meet the design targets. Secondly, a non linear model of the engine-vehicle system has been developed in Matlab-Simulink environment, based on experimental data acquired during both engine bench and on-board tests. Then, the ISC unknown parameters identification was carried out, and finally the controller was implemented in an experimental Electronic Control Unit (ECU) module, and tested in a prototype vehicle.
Recommended Content
Authors
Citation
Cavina, N., Minelli, G., Caggiano, M., Parenti, R. et al., "Model-Based Idle Speed Control for a High Performance Engine," SAE Technical Paper 2003-01-0358, 2003, https://doi.org/10.4271/2003-01-0358.Also In
References
- Mills John S. Multivariable Control of Engine Idle Speed SAE Technical Paper N. 970611
- Kajitani Mitsunobu Nonami Kenzo High Performance Idle Speed Control Applying the Sliding Mode Control with H Robust Hyperplane SAE Technical Paper N. 2001-01-0263
- Bromnick Paul Development of a Model Predictive Controller for Engine Idle Speed using C-power SAE Technical Paper N. 1999-01-1171
- Shah Minesh A Franchek Matthew A, Recent Advancements in I.C. Engine Robust Speed Controllers SAE Technical Paper N. 971568
- Yurkovich Stephen Simpson Melinda Crank-Angle Domain Modeling and Control for Idle Speed SAE Technical Paper N. 970027
- Heywood J.B. Internal Combustion Engine Fundamentals McGraw hill, Inc. 1988
- Levine W. Control System Application CRC Press 1999