NVH Challenges in Electrified Powertrains: An Integrated Approach with GT-SUITE

The recent automotive industry trend towards electrification has created new challenges for NVH engineers. These challenges stem from new powertrain architectures and their complex interactions, the governing control strategies which aim to optimize energy management, which unmask new sources of excitation. NVH problems are often the result of mechanisms that originate through complex interactions between different physical domains and the assembly of individual components into a complete system. E-motors, gear drives, engine dynamics and their interaction altogether can produce different noise and vibrations that might become challenging to isolate from the passenger compartment.

This Seminar demonstrates how within the GT-SUITE multi-physics integrated simulation platform, the NVH analysis of electric and hybrid drivetrains can be performed by integrating gas-dynamics, electromagnetic, and multibody dynamics system simulations together with different control strategies. The session will address some of the GT-SUITE capabilities to handle different NVH error states covering different ranges of frequencies, including non-linear transients such as EV-HEV operational mode switches or start-stop. It will also include different studies and benchmarked cases.