HEMIZERO – Design of high-voltage electric machines for heavy-duty electric vehicles
We have now gotten some solid financing to investigate the next steps in the electrification of road vehicles. When it comes to heavy-duty electric vehicles (like large trucks), the requirements are pretty high: absolutely minimal losses in the entire drivetrain, fast charging capabilities, high power ratings with high torque at low speeds and low torque at (cruising) high speeds. In addition to very simple demands like 10x more lifetime than a conventional passenger car, and reliability close to 100%.
For all the reasons above, we are observing a shift towards higher voltages in the heavy-duty vehicles. For a given power range, higher voltages reduce the currents, which reduces losses. It also potentially enable faster charging times. Regarding torque-speed and reliability, well: it is all to explore. That is why we are here.
We are soon starting this project under this years 2023. Tune in later this year for more information!