Browse Publications Technical Papers 2012-01-1523
2012-06-13

Electromagnetic and Structural Coupled Simulation to Investigate NVH Behavior of an Electrical Automotive Powertrain 2012-01-1523

RENAULT aims to become the first full-line manufacturer putting to market zero-emission affordable electrical vehicles and is therefore developing 100 % electric powertrains. NVH problems related to electric machine design have nothing in common with those of gasoline or diesel engines: electric whistling is a high frequency harmonic phenomenon, easily detectable due to the low background noise of a non-thermal vehicle and mainly perceived as very unpleasant by the customer.
Therefore we have developed a coupled numerical simulation between electromagnetic and structural models, making it possible to understand the influence of magnetic parts design on noise and vibration level. Impact of the spatial and time coherence between magnetic pressures and vibration modes of the motor will be explained. The novelty of our approach is to already take into account the whole powertrain structure radiation, including reducer and power supply boxes. Moreover we investigate the influence of the harmonic content of the supply current due to the regulation system, as well as the tangential forces effect on stator teeth.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
We also recommend:
TECHNICAL PAPER

The Study of Torque Control Characteristics for the Optimization of the NVH of an Electric Vehicle

2014-01-1757

View Details

TECHNICAL PAPER

NVH Aspects of Electric Drives-Integration of Electric Machine, Gearbox and Inverter

2018-01-1556

View Details

TECHNICAL PAPER

NVH Optimization of Driveline with Mathematical Optimization Methods

2013-26-0089

View Details

X