A Data-Based Review of Battery Electric Vehicle and Traction Inverter Trends
By: Christoph Sachs, Martin Neuburger
Potential Business Impact:
Makes electric cars go farther using less power.
Battery electric vehicles (BEVs) have advanced significantly during the past decade, yet drivetrain energy losses continue to restrict practical range and elevate cost. A dataset comprising more than 1000 European-market BEVs (model years 2010-2025) is combined with detailed inverter-motor co-simulation to chart technology progress for and quantify the efficiency and cost-saving potential of partial-load optimised multi-level inverter (MLI) for 2030. Average drive-cycle range has climbed from 135 km to 455 km, while fleet-average energy consumption has remained virtually constant. Three inverter topologies are assessed to evaluate future efficiency and cost enhancements: a conventional two-level (2L) six halfbridge (B6) inverter with silicon (Si) and silicon carbide (SiC) devices, and two three-level (3L) T-type neutral point clamped (TNPC) and active neutral point clamped (ANPC) inverters tailored for partial-load operation. The 3L-TNPC inverter, realised with only 30% additional SiC chip area, lowers drive-cycle drivetrain losses by 0.67 kWh/100 km relative to a SiC 2L-B6 baseline. These results identify partial-load optimised MLIs as a cost-effective route to further reduce BEV energy consumption and total system cost.
Similar Papers
Konzepte zur Effizienzsteigerung von Traktionsmotoren in batterieelektrischen Fahrzeugen durch den Einsatz neuartiger teillastoptimierbarer Motor- und Invertertopologien
Systems and Control
Makes electric cars go farther or cost less.
Analyzing BEV Suitability and Charging Strategies Using Italian Driving Data
Information Retrieval
Many car trips can use electric cars.
On the modular platoon-based vehicle-to-vehicle electric charging problem
Computers and Society
Saves car energy, time, and money on long trips.