Title Page

Feasibility Analysis of Battery Electric Heavy-Duty

Trucks for Local Applications Based on Real

Usage Profiles Using the Example of a Catering

Lift Truck

vorgelegt von

genehmigte Dissertation

Promotionsausschuss:

Vorsitzender: Prof. Dr.-Ing. Henning Meyer

Gutachter: Prof. Dr.-Ing. Steffen Müller

Dr.-Ing. Müller, the head of the Chair for Automotive Engineering at the Technical University

of Berlin, under whom I worked as a research assistant. I am grateful for the opportunity to

delve into my dissertation topic within such a captivating field of research and for his willingness

to discuss the subject and provide valuable suggestions and advice throughout the process.

I extend my thanks to all the contributors involved in the research project, eLift, which forms

an integral part of my dissertation. In particular, I would like to acknowledge Mr. Schmälzle

from Doll Fahrzeugbau GmbH and Mr. Pitsch from LSG Sky Chefs for their invaluable

assistance in providing the necessary information and enabling the analyses conducted in this

study.

Furthermore, I am appreciative of the collaboration, professional interactions, and pleasant

continuous encouragement, which helped me overcome challenges along the way. Finally, I

want to convey my deepest appreciation to my husband, Mohammed, for his constant

presence, dedication, patience, and understanding over the years.

I extend my sincere gratitude to all of you!

Lamyaa Wdaah

V

reduced emissions in the realm of road vehicles. While electrification is gaining ground in the

passenger car and light-duty vehicle sectors, it exhibits a lower degree of maturity in the heavy-

duty truck domain. One of the key factors contributing to this situation is the substantial initial

investment costs resulting from higher energy consumption and more demanding applications,

leading to markedly different economic viability conditions for electric heavy-duty trucks.

Conversely, electric vehicles offer the advantage of significantly lower energy consumption

and reduced maintenance expenses. Consequently, the economic feasibility of employing

electric heavy-duty trucks hinges on whether the higher initial investment costs can be offset

by lower operating expenditures, necessitating a comprehensive analysis of operational

profiles and working conditions to ascertain the truck's realistic energy consumption for a given

application. This analysis enables the prediction of whether electrifying the specific heavy-duty

truck represents a viable option. Furthermore, it is crucial to underscore other favorable

aspects of electric trucks, such as emissions and noise reduction, as well as enhanced

efficiency.

evaluate the electrification potential of a special-purpose heavy-duty truck employed in a

lifting system, utilizing recorded operational data. Based on the simulation results, an efficiency

analysis is conducted for both the driving and lifting systems, as well as the overall vehicle.

This is followed by a total cost of ownership analysis, which considers all costs associated with

the acquisition, operation, and disposal of the trucks, aiming to determine the economic

potential and cost differentials throughout their service lifespan. The life cycle environmental

impact of the considered catering lift trucks is also evaluated, with a focus on the aspects that

distinguish the environmental balance between the two truck technologies. Additionally, noise

emissions from both trucks are measured and assessed during driving and lifting system

operation.

The findings of this study demonstrate that the electric truck exhibits significant advantages in