The use of the vehicles showed that the optimisation of drive systems is only possible in actual scheduled service operation. Using measurement results it was possible to give recommendations for optimising the systems that could be practically implemented and to improve fuel efficiency, within the scope of the project.
The standardised operating cycles for hybrid buses and the adaptation of the vehicle models are intended to serve as a recommendation for evaluating such drive concepts. The project laid the foundations for a subsequently envisaged field trial using buses capable of quick charging:
- Gaining of experience from fleet use of serial hybrid buses on different lines with varying terrain and differing operating conditions
- Objective and independent accompanying analysis of the scheduled service deployment, focusing on fuel consumption
- Generation of standardised operating cycles for hybrid buses, which take comprehensive account of their characteristics
- Creation of vehicle simulation models for deriving deployment recommendations for other lines
- Utilisation of the vehicle simulation models for optimisation of the vehicles to be used
- Working up of principles for an »auto-learning« energy management system
- Deriving specifications for the later conversion of vehicles for recharging operation, including storage system sizing
- Planning the technology and infrastructure to be used for electricity supply points as preliminary work for the subsequently planned field trial
Funding Code
03KP572A-C