When making a buying decision, one of the biggest influencing factors for customers is the driver experience. This offers significant opportunities for automotive manufacturers to differentiate their vehicle from competitors.
Layout, comfort, technology and audio experience all have a significant effect on customer perception. Sound and vibration, or NVH, is implicit in these factors, and is an integral component of the vehicle and brand DNA. It is for this reason that NVH is such a critical focus in the automotive industry that engineers strive to address at early stages of the design process.
Consciously or not, people make decisions based on sound and vibration. For example, noise and vibration have always been important issues closely related to reliability and quality. Noise control however is not just about making cars quieter for a more relaxing ride, but also about enhancing the entire vehicle experience, from a smooth or powerful powertrain sound, to the infotainment experience. Moreover, with increasing emphasis on in-car technology and connectivity, the pressure on aligning the whole in-car experience with these areas increases. And very often, clear NVH indications are available only when the first physical prototypes are are available, which strongly reduces the room for improvement without highly impacting deadlines and costs.
OUR NVH SOLUTION
The Brüel & Kjær NVH Simulator technology is the latest addition to the VI-grade suite of simulator and simulation tools.
Our NVH Simulators create an interactive driving experience of a vehicle’s interior noise, vibration and harshness (NVH), bringing your sound and vibration data into the real world, so it can be experienced by real people.
NVH virtual prototypes are created from measured vehicle data, measured component test-bench data, and many different types of CAE data to create full-spectrum sound and vibration driver-in-the-loop simulations.
Highly accurate vehicle sound is played through headphones or speakers, and calibrated, accurate, independent multi-degree-of-freedom vibration is applied at all driver touchpoints allowing the driver to experience the sound and vibration of a vehicle throughout all of the dynamic aspects of driving, like changing gears and accelerating, or changing from smooth to rough to bumpy road surfaces.
On-road NVH Simulator solutions place NVH Simulator virtual prototype sounds into existing vehicles, bringing the simulation to the real vehicle.
The Exterior Sound Simulator projects the NVH virtual prototype into a virtual environment where engineers can understand how the vehicle will impact and be perceived by those outside the vehicle.
This immersive context for sound evaluations helps people select appropriate sounds and compare alternative designs – whether they are engineers or non-experts. It further enables the NVH engineer and sound designer to design and deliver a sound and vibration experience tailored to each specific vehicle model, and vastly improves development efficiency over traditional NVH development methods.
The following image illustrates Driving Simulator configurations for NVH applications.
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