Emotors Adopts Siemens’ Simcenter NVH Solutions

Siemens Digital Industries Software reports that Emotors, an independent e-drive manufacturer, is using test solutions from the Siemens Xcelerator portfolio of industry software to aid in the development and improvement of its e-drive systems for hybrids, plug-ins and full electric vehicles (EVs), SIemens reports.

Headquartered in Carrières-sous-Poissy, France ,and formed in 2018 as a joint venture between Stellantis and Nidec Leroy-Somer, Emotors is an independent e-drive manufacturer. Emotors has created a series of next-generation electric drive (e-drives) units for Stellantis brands like Peugeot, Opel, DS Automobile and Jeep.

“A key part of our knowledge is not just about good development—being able to design and prototype next-generation e-drives for our EV customers, but also manufacturing them en masse. This is where platform development, a very well-known strategy in automotive, helps us be competitive,” says Cédric Plasse, chief technology officer, Emotors. “We design many things digitally but cannot do everything with just our digital models. To be quick to market and accurate, we need to calibrate our models with test measurement data.”

One of Emotors’ challenges is meeting customer specifications—especially in noise vibration harshness (NVH) acoustic—when tailoring a new range of sounds for EVs, electric drivetrains and e-drives. These include customized interior and exterior soundscapes, enhanced “silent” driving experiences and pedestrian warning systems (PWS) or acoustic vehicle alerting systems (AVAS).

To meet these challenges, Emotors is using solutions from Siemens, including Simcenter Testlab software for test-based engineering, combining high-speed data acquisition with integrated testing, analytics and modeling tools, Simcenter SCADAS hardware, which provides test data acquisition solutions for multiphysics measurement for acoustic, vibration, and durability engineering.

Emotors is also using a suite of sound and vibration excitation systems designed to measure driving points and structural and vibroacoustic frequency response functions.

“To meet our customers’ NVH requirements, we perform classic experimental modal analysis in Simcenter Testlab. We extract modal parameters, like frequency, modal shape, and damping. And provide this information to the simulation team to confidently predict the NVH behavior of our Emotors’ products. The Simcenter testing solution easily takes us through the main tasks, step-by-step, from the channel setup to final measurement analysis,” explains Bonaventure Ndong Gumedzoe, NVH testing manager, Emotors.

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Sources: Press materials received from the company and additional information gleaned from the company’s website.