Doseg baterijskega električnega avtomobila

diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo - Projektno aplikativni program

Jernej Vesel (Author), Jernej Klemenc (Mentor)

Abstract

Na baterijski električni avtomobil poleg standardnih voznih uporov delujejo določeni vplivi, ki zaradi drugačne zasnove niso prisotni pri avtomobilih z vgrajenimi konvencionalnimi pogoni z motorji na notranje zgorevanje. Ena izmed poglavitnih stvari, ki vpliva na krajši doseg baterijskega električnega avtomobila ob nižanju temperatur okoliškega zraka, je upočasnjevanje kemijskih procesov v polnilni bateriji. Ob upoštevanju voznih uporov in zunanje temperature smo naredili izračun možnega dosega in prevoženega števila voznih ciklov WLTC. Ta je namreč del trenutno veljavnega standardiziranega voznega postopka WLTP za merjenje porabe goriva, izpustov in dosega vozil. Ob tem smo si postavili robne pogoje, vezane na različne naklone strmin, simulacijo vožnje pri različnih temperaturah okoliškega zraka in izvajanje regenerativnega zaviranja. Na podlagi izračunov dobljeni končni rezultati kažejo, da na doseg in prevoženo število voznih ciklov WLTC baterijskega električnega avtomobila v dokaj veliki meri vplivata tako nižanje temperatur okoliškega zraka kot večanje naklona strmin.

Keywords

diplomske naloge;baterijski električni avtomobil;doseg električnega vozila;vozni postopek WLTP;vozni cikel WLTC;vozni upori;

Data

Language:	Slovenian
Year of publishing:	2025
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[J. Vesel]
UDC:	629.01:629.331-837(043.2)
COBISS:	244564995
Views:	79
Downloads:	12
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Range of battery electric car
Secondary abstract:	In addition to the standard driving resistances, a battery electric vehicle is subject to certain influences that are, due to its different design, not present in vehicles with conventional internal combustion engine drivetrains. One of the main factors affecting the reduced range of a battery electric vehicle, is the slowing of chemical processes in the rechargeable battery, due to the lower ambient temperature. Taking into account driving resistances and ambient temperature, the potential range and number of completed WLTC driving cycles were calculated. This test cycle is part of the currently valid standardized WLTP procedure for measuring fuel consumption, emissions, and vehicle range. In our analysis, boundary conditions were established that are related to various road gradients, simulated driving at different ambient air temperatures, and compliance with regenerative braking. Based on the calculations, the final results show that both the decrease in ambient air temperature and the increase in road gradient significantly affect the range and number of WLTC driving cycles completed by the battery electric vehicle.
Secondary keywords:	thesis;battery electric car;range of electric vehicle;WLTP driving procedure;WLTC driving cycle;driving resistance;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XX, 46 str.
ID:	26712194