The presentation explores the current challenges and advances in electric mobility, focusing on motor controller efficiency. It evaluates the role of silicon carbide (SiC) technology in optimizing motor controller performance, particularly in electric vehicles (EVs). The discussion includes benchmarks of EV efficiency, energy loss analysis and comparisons between SiC and IGBT-based inverters. NX Technologies introduces its proprietary VarioSwitch motor control software as a competitive alternative, achieving SiC-like efficiency improvements with IGBT inverters with no extra hardware cost for the vehicle.

• How efficient current electric vehicles are: powertrain driving cycle efficiency is around 80% and this efficiency can be improved both with HW and SW
• SiC improves powertrain efficiency but SiC modules are 30-60% more expensive than IGBT power modules
• SiC cost curve will not reach IGBT cost. Producing SiC requires three or four times more energy and is 60% more carbon or emission intense
• There are electric motor techniques that can unlock extra efficiency with no extra cost for the vehicle
• Deploying this technology in vehicle production can unlock massive savings in cost and emissions for OEMs