Using CAE to assess whining noise of electric powertrains

Engine sound is a characteristic feature of passenger cars, and the well-balanced adaption to vehicle design and driving dynamics is a must for premium cars. The noise and sound of passenger cars have been dominated by the acoustic characteristics of the combustion engine for a long time. But now there is a change: modern cars with electric powertrains.

There is a wide range of activities to implement an electric motor in a car's powertrain: from additional e-motors in hybrids and complete battery electric driving up to fuel-cell systems. The research and development department at Daimler is working on tomorrow's powertrains for electrical powertrains, and many basics have been investigated in the past and presented in research cars.