Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57, 235-242
Published online 2014-10-10

Analysis of city buses operation

Luboš Papírník

Ústav techniky a automobilové dopravy, Mendelova zemědělská a lesnická univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika

This paper deals with analysis of city buses operation. This analysis is focused on the energy balance of propulsion system of these buses. The energy balance gives an overview about necessary amount of energy for city buses in pure city operation. The operation of city buses is divided for this analysis into three basic modes: stop state, drive and deceleration. The fleet of the same 19 city buses was chosen for collection of all operation data. These city buses are located in one city. The buses were changing all bus routes and were driven by all bus drivers. These conditions are necessary for elimination of bus route topology and bus driver behaviour. The required operation data were saved into engines and transmissions control units. The saved data were uploaded from control units for data processing. The aim of the analysis is determination of the energy for each drive mode. The energy for individual mode gives an overview about possible energy savings when hybrid drive system is used for these buses. The energy balance is groundwork for correct design of hybrid drive system and for hybrid drive system control.


2 live references