This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A New Approach to Functional and Software Structure for Engine Management Systems - BOSCH ME7
Annotation ability available
Sector:
Language:
English
Abstract
This paper describes the new Engine Management System (EMS) ME7.
Torque and A/F demands for modern EMS result from both, internal functions (i.e. engine start, idle speed control, catalyst heating) and external systems (i.e. driver's request, transmission or vehicle dynamic control). With ME7 these demands are processed to the optimized actions of the actuators by a centrally coordinated torque and A/F management. The design of the functions is physically based to provide optimum portability and minimum calibration time. Examples are given for the physical manifold pressure model and the cylinder charge control of ME7 with electronic throttle control.
The real time operating system „ERCOS” and a layer based software architecture enable the implementation of these functions in a flexible family of products for current and future systems.
Topics, such as warm-up strategies for catalysts in conventional port injection systems, gasoline direct injection systems (with their switch-over strategies between stoichiometric and stratified operation), NOx catalyst control, and the requirements of future integrated drive train management systems, all require maximum flexibility and expandability.
The introduction of the ME7 is an important step towards this future. The design represents a good basis for development sharing with customers and is also an important prerequisite for the vehicle management system CARTRONIC®.
Recommended Content
Authors
Citation
Gerhardt, J., Hönninger, H., and Bischof, H., "A New Approach to Functional and Software Structure for Engine Management Systems - BOSCH ME7," SAE Technical Paper 980801, 1998, https://doi.org/10.4271/980801.Also In
References
- Glöckler, O. Benninger, N.F. „Beitrag der Motorsteuerung für Ottomotoren zur Senkung des Kraftstoffverbrauchs” Stuttgarter Symposium 1995
- Glöckler, O. Bischof, H. „Motorsteuerungssysteme der Zukunft” 1995
- Streib, H.M. Bischof, H. „ETC: A cost Effective System for Improved Emissions,Fuel Economy and Driveability” SAE Technical Paper Series 960338
- Gerhardt, J. Benninger, N. Heß, W. „Drehmomentorientierte Funktionsstruktur der EMS als neue Basis für Triebstrangsysteme” 1997
- Gill, P.E. Murray, W. „Quasi-Newton Methods for Unconstrained Optimization.” Journal of the Institute of Mathematics and it's Applications
- Hendricks, E. Chevalier, A. Jensen, M. Sorensen, S.C. „Modelling of the Intake Manifold Filling Dynamics” SAE Technical Paper Series 96 0037 1996
- Streib, H.M. Wild, E. „Modellbasierte Füllungserfassung und -steuerung zur Verbindung von hoher dynamischer Aktualität” Berlin 1996
- Tanenbaum. A.S. „Modern Operating Systems” Prentice-Hall 1992
- Meyer. B. „Object-Oriented Software Construction” Prentice Hall Book Co., Inc. 1988
- NN „OSEK (Open Systems and the Corresponding Interfaces for Automotive Electronics)” Operating System 1995
- Hatley D. J. Pirbhai, I. A. „Strategies for Real-Time System Specification” Dorset House Publishing 1987
- Goldsmith Sylvia „A Practical Guide to Real-Time Systems” Development Prentice Hall
- Poledna Mocken Schiemann Beck „ERCOS: An Operating System for Automotive Applications” SAE International Congress Michigan 1996
- Stutzenberger, H Preussner, C. Gerhardt, J. „Benzin-Direkteinspritzung für Ottomotoren - Entwicklungsstand und Ausblick” 1997
- Moser, W. Mentgen, D. Rembold, H. „Benzin-Direkteinspritzung - eine neue Herausforderung für zukünftige Motorsteuerungssysteme” 58 1997 9 10
- Streib, H.M. Blank, H. Wimmer, W. „Eine optimierte Antriebstrangsteuerung mit der Funktion Mastershift” 1099 111 124 1993