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Voi Technology career site

Master thesis: Sensor fusion in real world micromobility application

Explore the energy efficiency of electric motors and controllers in micromobility vehicles

  • In this thesis project you will get a chance to look into real-world electric motor and controller systems powering hundreds of thousands of vehicles across Europe. Designing and building a full-scale test rig from scratch, including custom instrumentation and load simulation. Make a lasting impact: your work will help shape the efficiency standards of our fleet and contribute to more sustainable urban transport

    Sven Åkersten

    Embedded Hardware Engineer

The thesis

Micromobility vehicles, such as e-scooters and e-bikes, are shaping the future of urban transport. Their success depends not only on user adoption but also on how efficiently they use energy. Understanding and improving the energy efficiency of these vehicles is key to building sustainable, reliable, and cost-effective fleets.

YOUR MISSION

This thesis explores the energy efficiency of electric motors and controllers in micromobility vehicles. You will work hands-on to evaluate and optimise how power flows through our scooters and e-bikes — from battery to motor output.  The results will provide a detailed understanding of how different operating conditions impact energy losses and overall efficiency. The project combines theory with real-world application: 

  • You will design experiments, build testing equipment, and analyse performance data to generate actionable insights. 
  • You will design and build a custom test rig to measure electrical power and simulate mechanical load across the full powertrain. 


STUDENT PROFILE

    We are looking for an electrical engineering student with an interest in:

    • Electric motors and motor controllers.
    • Power efficiency and relevant measurement techniques (mechanical and electric power).
    • Real world application of measurement equipment. 
    • Hands-on skills and curiosity for hardware are highly valued, as this project blends lab work, prototyping, and analysis.


    About Voi Technology

    Since 2018, Voi has been on a mission to create safe, sustainable and reliable micromobility for everyone. Today we are the leading shared micromobility operator in Europe, with HQ in Stockholm (Sweden), operating 150,000+ vehicles in 110+ towns and cities across 12 countries, serving 8+ million riders with over 400+ MILLION rides to date, and we have no intention of stopping here! We believe that micromobility will play a central role in changing how people move in our towns and cities in the future and want to ensure that the micromobility transformation happens the right way - through real innovative technology, partnership and transparent dialogue with towns, cities and governments, and by adapting our products to the local needs. In addition to improving quality of life in cities around the world, we are contributing to the solution for climate change by making sustainable transportation options more widely available and promoting renewable energy use and circularity along our supply chain.

    Diversity Matters

    As a Voiager, we offer you a friendly, collaborative and fast-paced workplace where you can bring your whole self to work, regardless of gender, age, ethnicity, religion, disability or sexual orientation - and welcome applications from whoever you are, including veterans, those actively serving as a Reservist and their partners. What is most important to us is how you treat others and what skills and value you bring to our team. We believe that having a wide diversity of people with different backgrounds and perspectives within Voi is essential to our success in delivering the best user experience to our equally diverse user base. With employees from over 50 nationalities working within Voi, we believe we have made good progress but know we can still do more - therefore we discourage any photos, personal letters, or disclosure of any information that concerns other information than your professional experience.

    Already working at Voi Technology?

    Let’s recruit together and find your next colleague.

    @voiapp.io
    Career site by Teamtailor