What is the switching frequency of main EV/HEV e-powertrains?


The switching frequency and switching strategy determine the characteristic voltage and current supply spectra of AC electrical machines. They are chosen to maximize the converter output power, minimize electric powertrain losses, and minimize acoustic noise due to magnetic forces.

Application to e-NVH

Using sound and vibration measurements or scientific publications, EOMYS is updating on this webpage a list of some electrical powertrain switching frequencies used in commercial EV/HEV automotive applications. If you know about some more numbers to be added in this table, please send us the information using the contact page.

Asynchronous switching means that switching frequency does not change with e-motor speed.

Main PWM strategies in EV HEV
BrandModelPWM frequencyPWM strategy
BMWi38 kHzAsynchronous
HyundaiIonic8 kHzVariable (partly synchronous)
NissanLeaf5 kHzAsynchronous
OpelAmpera10 kHzAsynchronous
RenaultTwizy8 kHzAsynchronous
RenaultZoe10 kHzAsynchronous
SmartForTwo10 kHzAsynchronous
ToyotaPrius 20042.5 kHzAsynchronous
ToyotaPrius 20105 kHzAsynchronous SVPWM
VWe-up9 kHzAsynchronous
TeslaS9.95 kHzAsynchronous
TeslaX9.95 kHzAsynchronous
TeslaY9.95 kHzAsynchronous
Audie-Tron10 kHzAsynchronous
Jaguari-Pace10 kHzAsynchronous
PorscheTaycan8 kHzAsynchronous
Mercedes BenzEQC?Asynchronous
Volvo CarsXC4010 kHzAsynchronous
Volvo CarsPolestar 210 kHzAsynchronous

See also