This tutorial demonstrates the use of Manatee e-NVH CAE collaborative platform by Control Engineers involved in the development of electric drive systems. In this example, the association of a Permanent Magnet Synchronous Machine with a three-phase inverter is responsible for the electromagnetic excitations of the electric vehicle powertrain. Electromagnetic forces induced by slotting and switching effects produce dynamic vibrations of the e-powertrain housing and driveline. This results in so-called electromagnetic Noise, Vibration, and Harshness (e-NVH) which can radiate as air-borne or structure-borne noise.

Control Engineers can assess and reduce magnetic noise and vibrations. They can explore the impact of current angles vs Maximum Torque Per Amp (MTPA) strategy, they can study the feasibility of Harmonic Current Injection at operating points where NVH problems have been identified. They also can assess the impact of different Pulse Width Modulation frequencies or strategies on magnetic noise and vibrations.