This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Optimized Start Strategy for Stop/Start Operation of a μ-Hybrid Vehicle
Technical Paper
2007-01-0298
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Siemens VDO has set up a demonstration vehicle with a direct injecting (DI) gasoline engine to evaluate different stop/start strategies to reach future CO2 targets. The vehicle is equipped with both a belt-alternator-starter (BAS) system and a conventional starter. Both starter-technologies are combined with a so-called start-optimization strategy, implemented in the engine control unit (ECU). The possible combinations between the applied starter technologies and the ECU start strategies are evaluated in view of stop/start requirements.
The start-optimization strategy is based on injection and ignition upon start request, prior to synchronization at the tooth gap of the crankshaft target wheel. The strategy is realized on a vehicle with a DI engine. To demonstrate the potential of that start strategy also for an engine with port injection (PI), the expected start time behavior is simulated.
To optimize the engine start the knowledge of the absolute engine stop-position is required by the ECU. For that purpose, Siemens VDO developed a new bidirectional crankshaft sensor, for tooth- and direction detection on toothed - or encoded target wheels.
Experimental results obtained on a DI engine show the benefits of this solution in terms of starting time, quality of start reproduction and fuel economy.
Recommended Content
| Technical Paper | An Engine Start/Stop System for Improved Fuel Economy |
| Technical Paper | Development of an Engine Stop/Start at Idle System |
| Technical Paper | Control of the Start/Stop of a Diesel Engine in a Parallel HEV with a Belted Starter/Alternator |
Authors
Citation
Beer, J. and Teulings, W., "Optimized Start Strategy for Stop/Start Operation of a μ-Hybrid Vehicle," SAE Technical Paper 2007-01-0298, 2007, https://doi.org/10.4271/2007-01-0298.Also In
References
- Heil B. Enderle Ch. Karl G. Lautenschütz P. Mürwald M. Der neue aufgeladene Mercedes-Benz 4-Zylinder-Ottomotor M271 mit Direkteinspritzung 23rd International Viennese Engine Symposium 2002
- Rampeltshammer M. Beer J. Renken F. Deiml M. Knorr R. Herfurth R. Benzin-Direkt-Einspritzer und Starter-Generator - Praktische Erfahrungen und Messergebnisse mit einem Versuchsfahrzeug Conference “Hybrid drive - the future of the automobile powertrain?” Berlin June 16-17th 2005
- Renken F. Karrer V. Skotzek P. The Starter-Generator - Systems, Functions und Components 30 th FISITA World Automotive Congress Barcelona May 2004
- Renken F. Karrer V. Leistungselektronik für den Integrierten Starter-Generator HDT Conference: 22 nd Conference on Electronics in the Motor Vehicle, E/E Architectures - Simulation - Diagnostic Stuttgart 2002 Documentation: Motor Vehicle Electronics, Conference No. E-H030-06-056-2
- Karrer V. Renken F. Power Electronics for the Integrated Starter-Generator HDT International ISG Conference Munich 2002 Expert-Verlag 3-8169-2977-2 Optimization of the Power Train in Vehicles by Using the Integrated Starter-Generator (ISG) 222 247
- Schäfer H. Starter-Generator for Cars, Based on an Induction Machine with Field-Oriented Control SAE TOPTEC European Switched Reluctance Motors and Brushless Technology Munich, Germany Sept. 1998