PSI - Issue 47

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Bartłomiej Walczak et al. / Procedia Structural Integrity 47 (2023) 723 – 731 Bart ł omiej Walczak et al./ Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 2. Solaris Urbino 15 LE electric.

Table 1. Main parameters of tested bus Parameter

Value 14,89 2,55 3,4 26000

Unit [m] [m] [m] [kg]

Length

Width Height Gross Vehicle Weight

Traction motor power Energy stored (assumed 7 battery packs) Total number of passengers Number of seats

300 >620 >100 up to 65

[kW] [kWh]

[-] [-]

The configuration of the powertrain components on this bus differs significantly from that of traditional diesel buses, particularly with regard to the elements mounted on the roof, as illustrated in Fig.3. While a standard diesel bus only features an air conditioning (AC) unit in this area, the electric bus has a total mass of roof-mounted elements that reaches almost 3 000 kg, including three traction batteries equipped with a cooling system, traction electronics, a pantograph, and a braking resistor. Furthermore, four additional traction batteries with a weight of 2 400 kg are located in the lower part of the bus, along with a traction motor weighing only 260 kg. The total mass of these powertrain elements amounts to over 5 100 kg.