New NVH simulator enhances electric vehicle modeling


Brüel & Kjær Sound & Vibration Measurement has released version 2019.1 of its NVH Simulator, which expands the ability to model electric and hybrid vehicles, and incorporates over 200 other improvements and enhancements.

Dave Bogema, product manager at Brüel & Kjær, explained, “One of the challenges associated with electric vehicle sound is the phenomena of non-zero-crossing and ‘negative’ orders. These arise from the operation of the power electronics controlling the motor. Typically, this manifests as tonal harmonics increasing and decreasing in frequency simultaneously, centered around a higher frequency tone. These harmonics have been difficult or impossible to extract from a measurement.”

With the 2019.1 release, not only can these tonal harmonics be extracted from a measurement, but they can also be resynthesized in real-time driver-in-the-loop simulations using the NVH Simulator software.


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Rachel's career in journalism began around five years ago when she started working for UKi Media & Events, having recently graduated from Coventry University where she studied the subject. Her favourite aspect of the job is interviewing industry experts, including researchers, scientists, engineers and technicians, and learning more about the groundbreaking technologies and innovations that are shaping the future of the automotive and tire industries.

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