Reducing DMU fuel consumption by means of hybrid energy storage

Purpose This paper discusses a hybrid energy storage concept and its control strategy for hydro-mechanical DMUs. The hybrid energy storage consists of double layer capacitors and batteries. The new concept aims on reducing fuel consumption and avoiding unhealthy emissions during idling in station ar...

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Bibliographic Details
Published in:European transport research review 2011-11, Vol.3 (3), p.149-159
Main Authors: Dittus, Holger, Hülsebusch, Dirk, Ungethüm, Jörg
Format: Article
Language:English
Subjects:
Automotive Engineering
Civil Engineering
Computer simulation
Consumption
Control systems
Cost control
Diesel engines
Double layer
Energy consumption
Energy efficiency
Energy storage
Engineering
Fuel consumption
Load
Original Paper
Regional/Spatial Science
Stations
Storage batteries
Strategy
Transportation
Vehicles
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Summary:Purpose This paper discusses a hybrid energy storage concept and its control strategy for hydro-mechanical DMUs. The hybrid energy storage consists of double layer capacitors and batteries. The new concept aims on reducing fuel consumption and avoiding unhealthy emissions during idling in station area. Methods Development of a hybrid propulsion concept and control strategy requires adequate methods for modeling system behavior. The simulation environment Dymola is used to develop and evaluate the control strategy and for dimensioning the system components. Results Simulations indicated fuel savings of up to 13% depending on track characteristics. Measurements of a scaled storage system in a HiL-environment showed good accordance of the simulated and measured behavior of battery and double layer capacitor. Conclusions The newly developed storage system and its control strategy enable reduction of fuel consumption and unhealthy emissions in station areas.
ISSN:1867-0717
1866-8887
DOI:10.1007/s12544-011-0053-6