NVH-Development of Electric Powertrains - CAE-Methods and NVH-Criteria

Format:

Conference/Event

Author/Creator:

Meier, Meier, author.

Contributor:

Bikker, Stefan

Lieske, Dirk

Conference Name:

8th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference (2014-07-02 : Graz, Austria)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2014

Summary:

Electric cars are getting popular more and more and the expectations of the customers are very challenging. Concerning comfort, the situation is clear: customers want an electric car to be quiet and without any annoying noise from the powertrain.To develop an electric powertrain with a minimum noise level and minimized whining it is necessary to have an accurate CAE-simulation and precise criteria to assess whining noise. Based on the experience with electric powertrains in research cars the CAE-modelling was improved and a new whining intensity factor' was acquired for the development of Daimler's electric cars.The results are a very low noise level and a minimized whining noise, nearly not noticeable giving a comfortable sound to the customers of the smart electric drive and the B-Class Electric Drive

Notes:

Vendor supplied data

Publisher Number:

2014-01-2072

Access Restriction:

Restricted for use by site license