How to optimize powertrain efficiency with cost-competitive IGBT?
11 Jun 2025
Electrification, powertrains and alternative fuels
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
Become a Sponsor and unlock unique commercial opportunities. With a diverse audience of industry professionals, thought leaders, and innovators, this is the perfect platform to position your brand and gain unparalleled visibility, credibility, and access to a targeted network of decision-makers. We offer a variety of sponsorship packages to suit your needs, from exclusive title sponsorships to customisable options. Each package is designed to maximise your exposure and impact before, during, and after the event.