Numerical analyses of a hydraulic hybrid powertrain system for a transit bus

A dynamic programming optimization algorithm has been applied on a transit bus model in MATLAB in order to assess the fuel economy improvement potential by implementing a hydraulic hybrid powertrain system. The numerical model parameters have been calibrated using experimental data obtained on a Bel...

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Bibliographic Details
Published in:Thermal science 2020, Vol.24 (1 Part A), p.159-170
Main Authors: Kitanovic, Marko, Popovic, Slobodan, Miljic, Nenad, Mrdja, Predrag
Format: Article
Language:English
Subjects:
Accumulators
Algorithms
Alternative fuels
Buses (vehicles)
Computer simulation
Dynamic programming
Energy efficiency
Fuel consumption
Fuel economy
Hybrid systems
Hydraulics
Mathematical models
Numerical models
Optimization
Parameters
Powertrain
Public transportation
R&D
Research & development
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Summary:A dynamic programming optimization algorithm has been applied on a transit bus model in MATLAB in order to assess the fuel economy improvement potential by implementing a hydraulic hybrid powertrain system. The numerical model parameters have been calibrated using experimental data obtained on a Belgrade?s public transport bus. This experiment also provided the representative driving cycle on which to conduct simulation analyses. Various functional parameters of a hydraulic hybrid system have been evaluated for obtaining the best possible fuel economy. Dynamic programming optimization runs have been completed for various hydraulic accumulator sizes, preload values and accumulator foam quantities. It has been shown that a fuel economy improvement of 28% can be achieved by implementing such a system.
ISSN:0354-9836
2334-7163
DOI:10.2298/TSCI190308172K