E-motor NVH and Active Sound Design for EV

Ansys Solutions for acoustics provide a complete multiphysics workflow for e-motor noise, vibration and harshness (NVH), as well as active sound design for electric vehicles, enhancing driver and passenger safety and comfort.

Active Sound Design for Electric Vehicles (EV)

Electric vehicle (EV) and autonomous vehicle (AV) manufacturers create signature sounds for their cars (including engine noise) to enhance vehicle appeal and give listeners a feel for the speed and acceleration. Using cutting-edge sound enhancement techniques, automakers are introducing new, customized sounds for their vehicles. These techniques augment natural vehicle sounds by playing synthesized sounds synchronized with the vehicle's real-time data over the vehicle's speakers. Ansys delivers in-vehicle sound design and tuning that is designed to predict, test and validate the future soundscape of vehicles in real-world driving conditions, to ensure that EVs provide the optimal sound experience.

E-Motor Noise, Vibration and Harshness (NVH)

Simulating the noise, vibration and harshness (NVH) of an electric motor is important for proper electromagnetic (EM) and vibro-acoustic design of electric vehicles (EVs). Ansys’ solutions can characterize the NVH effects of an electric motor early and accurately in the design cycle to improve vehicle performance and safety. These solutions lower development costs and help support electric mobility (e-mobility) — an application resulting from electrifying transportation. Ansys' solutions enable EV carmakers or other e-motor integrators to optimize the sound perception and performance, improve customer satisfaction and gain competitive advantage in the transportation and industrial sectors.

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Reduce Noise, Vibration and Harshness (NVH)
Optimize Your Sound Quality
In-vehicle Sound Design and Tuning Solution for Quiet Vehicles

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Active Sound for Automotive

Ansys solutions enables you to finely tune the sounds of the Speed Acceleration Feedback (SAF), AVAS and Ambiance/HMI/ADAS Sound axes, to get the best acoustic experience in-vehicle.

Simulate Noise, Vibration and Harshness (NVH)

The Ansys suite of tools provides end-to-end solutions for understanding sound sources, paths and perception, offering a highly accurate and complete solution to help engineers succeed in diagnosing and optimizing acoustic signatures in electric machines.

Acoustic Simulation Transforms Design and Improves User Experience

Whether it's reducing vibrations in a household product or an electric vehicle, acoustic simulation improves the sound of our world. Sounds can be a product benefit or an annoyance, creating a strong emotion and reinforcing a product's brand identify. This is especially true with EVs. Ansys tools enable automakers to design the perfect acoustic experience for their vehicles.

How to Improve Product Sounds Using Acoustic Simulations

Products that contain vibrating parts, impacting components, fluid flows and electromagnetic fields can all produce sound by vibrating the air, or medium, around them.

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Amplifying the benefits of acoustic simuation

Amplifying the Benefits of Acoustic Simulation

The sound of a product directly affects the user experience, making acoustic engineering a hot topic ― especially for transportation and consumer goods companies.

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Active Sound Design for Electric Vehicles

This webinar introduces you to ASD for EV, a tool that enables you to test and finely tune active sound design candidates for electric or quiet ICE vehicles, in real driving conditions.

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Noise, Vibration and Harshness Analysis

Learn how Ansys Maxwell can be used as part of a multiphysics simulation protocol to reduce noise, vibration and harshness (NVH) caused by wind, powertrain and road noise in moving vehicles.

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Electric Motor Design & Simulation

Whether you're designing an electric motor for an electric vehicle that needs to be small, efficient and quiet, or for an industrial application where size and sound are not of major concern, it is critical to simulate electric motors early in the design process. Ansys offers a complete workflow that progresses from design sizing options to detailed electromagnetics and thermal and mechanical analyses of the motor. Coupled electromagnetic-thermal-stress and vibro-acoustics simulation of the motor using Ansys tools results in a high-fidelity, accurate and robust design that is optimized for performance, cost and efficiency.

Template-based design for motor sizing with rapid multiphysics analysis on the full operating range
2D finite element and 3D finite element electromagnetic analysis
Thermal management with system cooling optimization
Robust design with noise vibration reduction
System level simulation (HiL/SiL/MiL) using high fidelity electro-thermal motor modeling

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WEBINARS

Active Sound Design for Electric Vehicles

This webinar will introduce you to ASDforEV, a tool that enables you to test and finely tune active sound design candidates for electric or quiet ICE vehicles, in real driving conditions. This tool covers a wide range of sound functions, organized into five axes: SAF – Speed Acceleration Feedback; AVAS – Acoustic Vehicle Alerting System; Ambiance; ADAS – Advanced Driver Assistance System; and HMI – Human Machine Interaction.

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Electric Machine Webinar Series

This webinar series focuses on design and analysis of electric machines, and presents many of the technology capabilities offered by Ansys simulation tools including full-length presentations as well as short demonstrations. With many workflows available, users may start with concept design using Ansys Motor-CAD, then proceed to detailed magnetics analysis with Ansys Maxwell. Multiphysics problems may be further studied with Ansys CFD for advanced cooling and Ansys Mechanical for structural analysis as well as noise, vibration and harshness (NVH). Please see the full list of topics below and register for the webinars of interest.

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Featured Resources

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BROCHURES

Ansys VRXPERIENCE Sound ASDforEV

Electric vehicle (EV) and autonomous vehicle (AV) manufacturers create signature sounds for their cars, including engine noise, to enhance vehicle appeal and give listeners a feel for the speed and acceleration. Using cutting-edge sound enhancement techniques, automakers are introducing new, customized sounds for their vehicles. These techniques augment natural vehicle sounds by playing synthesized sounds synchronized with the vehicle's real-time data over the vehicle's speakers. VRXPERIENCE Sound ASDforEV delivers in-vehicle sound design and tuning that is designed to predict, test and validate the future soundscape of vehicles in real-world driving conditions to ensure that EVs provide the optimal sound experience.

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WHITE PAPERS

White Paper: Ansys

Ansys NVH Solutions for Electric Vehicles

This paper describes Ansys’ solutions to characterize the NVH effects of an electric motor early and accurately in the design cycle to improve vehicle performance and safety.

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