Different Approaches to Improve Energy Consumption of Battery Electric Buses

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu



  • Ecole Polytechnique Federale de Lausanne


Transportation electrification is increasing and recently more focus has been directed on heavy vehicles and especially on city buses. Battery electric buses are inherently more energy efficient than diesel buses and the efficiency can be further increased by different methods. This paper evaluates the key factors that influence on the energy consumption of battery electric buses. A simulation model of a generic electric bus was developed in the Autonomie software. Simulations were carried out in different conditions including typical driving cycles and different climate conditions. Specific focus was given for minimizing the energy consumption by predictive driving. The simulation results were thoroughly analyzed in order to understand better the most efficient methods to improve energy consumption. According to the simulation results, the high level of auxiliary power (cold and hot climate conditions) increases the energy consumption significantly. There is a substantial variation of consumption between different driving cycles. This variation is mainly caused by the auxiliary power, transmission losses and mechanical braking. It was also observed that there is a strong linear correlation between driving aggressiveness and energy consumption.


Otsikko2018 IEEE Vehicle Power and Propulsion Conference, VPPC 2018 - Proceedings
TilaJulkaistu - 7 tammikuuta 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaIEEE Vehicle Power and Propulsion Conference - Chicago, Yhdysvallat
Kesto: 27 elokuuta 201830 elokuuta 2018
Konferenssinumero: 15


NimiIEEE Vehicle Power and Propulsion Conference
ISSN (painettu)1938-8756


ConferenceIEEE Vehicle Power and Propulsion Conference

ID: 31176196