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Thesis Work - Analysis of E-machine losses due to manufacturing processes

Thesis Worker at Volvo Cars

Welcome to explore the world of Volvo Cars by writing your thesis with us! As a thesis worker in our organization you are supported by a supervisor who follows you during your project. All thesis projects are arranged in business critical areas and therefore you will be able to contribute to our company purpose – providing freedom to move in a safe, sustainable and personal way – from day one! 



Measurement and modeling of E-machine losses due to manufacturing processes on steel sheets


The Electric Drive department 97700 at Volvo Cars is proud of being responsible for designing and delivering system solution and functionality for the inverters, electric machine, and transmission, in our electrified vehicles. Our vision is to become “Leading in electrification” and we are aiming to contribute to world class energy efficiency, E-machine functionality, sustainability, customer satisfaction and best performance and drivability, to all our future products.


Increasing demand for electric vehicles has put a significant stress on designing highly efficient E-machines. It is known that manufacturing methods to shape steel sheets deteriorates electromagnetic properties of their material and results in higher iron losses. Usually, these manufacturing impacts are not considered in the designing of E-machines (EM).  


Consequently, to reach more confident EM calculations, quantifications of the mentioned losses and predicting them in early designs of EM, is crucial. 
The main objective of the thesis work is to carry out measurements (with use of equipment like Epstein frames, Single Sheet testers) on the steel sheets used in manufacturing of E-Machines and use these measurements in modeling losses in FEM-based software.


Activities we foresee, that should be done during this thesis work, are: 
•    Literature study of previous work done in this field. 
•    Doing measurements on different steel sheets with various manufacturing methods.
•    Derive simulation models based on the measurements.
•    Final report which describes the measurement methods, modeling methods and limitations. 


We believe you are studying Master's in Electrical engineering, Electric power engineering or similar, including E-machine courses. You have experience in using Matlab and FEM-based applications, like Comsol or Maxwell, for electromagnetic analysis and modeling. 


•  The duration of the thesis work is approx. 4-5 months onsite VCC.
•  It starts in spring 2022, exact date to be discussed.
•  30 ECTS (academic credits) in agreement with your University.
•  Number of students: 1 or 2, working in pair.    
•  Computer and software will be arranged by the University and Volvo Cars. 


How to Learn More and Apply 
Selection will be ongoing during the application period, so do not hesitate to send in your application. Attach your resume and cover letter and copies of grades. You can provide a reference if you would like. Please note that due to GDPR, applications by email will not be accepted. If you have any additional questions regarding the position, you are welcome to contact: thesis supervisor: Sima Soltanipour,  sima.soltanipour@volvocars.com, 
or hiring manager: Anders Thulin, Anders.Thulin@volvocars.com

We would appreciate your application at the latest by 2021-11-07


Who are we?

Everything we do starts with people. Our purpose is to provide freedom to move, in a personal, sustainable and safe way. We are committed to simplifying our customers’ lives by offering better technology solutions that improve their impact on the world and bringing the most advanced mobility innovations to protect them, their loved ones and the people around them. 

Volvo Cars’ continued success is the result of a collaborative, diverse, and inclusive working environment. The people of Volvo Cars are committed to making a difference in our world. Today, we are one of the most well-known and respected car brands, with over 40,000 employees across the globe. We believe in bringing out the best in each other and harnessing the true power of people. At Volvo Cars your career is designed around your talents and aspirations so you can reach your full potential. Join us on a journey of a lifetime as we create safety, autonomous driving and electrification technologies of tomorrow.

Gothenburg, Sweden

Job requisition ID:  54647

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