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Approach for a Global Route-Based Energy Management System for Electric Vehicles with a Hybrid Energy Storage System

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  • Tuyen Nguyen

    (Institute of Energy Efficient Mobility, University of Applied Sciences Karlsruhe, 76133 Karlsruhe, Germany
    FEMTO-ST Institute, University Bourgogne Franche-Comté, CNRS, 90000 Belfort, France)

  • Yannick Rauch

    (Institute of Energy Efficient Mobility, University of Applied Sciences Karlsruhe, 76133 Karlsruhe, Germany)

  • Reiner Kriesten

    (Institute of Energy Efficient Mobility, University of Applied Sciences Karlsruhe, 76133 Karlsruhe, Germany)

  • Daniela Chrenko

    (FEMTO-ST Institute, University Bourgogne Franche-Comté, CNRS, 90000 Belfort, France)

Abstract

The usage of batteries and supercapacitors in the field of electric vehicles is becoming increasingly prominent in both research and development. Due to the complementary advantages of the two systems, high energy density, and high power density, a combined battery/supercapacitor system offers potential. To effectively utilise the potential of such a hybrid energy storage system (HESS), one requires an intelligent energy management system (EMS). The EMS is responsible for controlling the electrical power between the battery and the supercapacitor in such a way that the required power can be optimally distributed at all times (currently and in the future). For this purpose, the energy management system utilises information on the driving route and, based on this information, shall calculate a global strategy for the continuous power distribution. The controlled power distribution should take place in real time and be robust against discrepancies so that unpredictable or unreliably predictable events do not significantly influence the functionality. For the implementation of the concept, a rule-based power distribution is implemented in combination with a predictive energy management. Here, the energy management is combined with a rule-based strategy calculation based on data on the route to be driven with a global optimization for the calculation of a route-specific strategy. Depending on the selected objective, the increase in energy efficiency, or lifetime, the operation of the power control is optimised. Due to the functional separation, the continuous power control can operate in real time, while more computational time can be spent on the calculations of the power management strategy, which accordingly does not need to be executed in real time. The results show that by using the presented EMS, especially in combination with a route-specific parameterisation, a significant effect on the energy efficiency and/or battery lifetime can be achieved. The average battery energy consumption can be reduced by up to 9.14% on urban routes. Regarding battery lifetime, the average battery usage can be reduced up to 13.35% and the battery energy losses even up to 62.72%.

Suggested Citation

  • Tuyen Nguyen & Yannick Rauch & Reiner Kriesten & Daniela Chrenko, 2023. "Approach for a Global Route-Based Energy Management System for Electric Vehicles with a Hybrid Energy Storage System," Energies, MDPI, vol. 16(2), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:2:p:837-:d:1032255
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    References listed on IDEAS

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    1. Tengda Hu & Yunwu Li & Zhi Zhang & Ying Zhao & Dexiong Liu, 2021. "Energy Management Strategy of Hybrid Energy Storage System Based on Road Slope Information," Energies, MDPI, vol. 14(9), pages 1-18, April.
    2. Loïc Joud & Rui Da Silva & Daniela Chrenko & Alan Kéromnès & Luis Le Moyne, 2020. "Smart Energy Management for Series Hybrid Electric Vehicles Based on Driver Habits Recognition and Prediction," Energies, MDPI, vol. 13(11), pages 1-17, June.
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