NVH Vehicle Simulator

To replicate quality use of all your available NVH data, Brüel & Kjær’s simulator program accurately recreates the noise and vibration of a vehicle in a user-interactive environment. This ensures the R&D department’s best possible use of customer preferences and satisfaction profiles, specific differentiations towards competitors as well as a design unique profile for the concept and design development stages that provide much faster and more efficient way of working with future design of vehicle sound and vibration.     

The NVH Vehicle Simulator program is available as three systems: 

Desktop NVH Simulator

For use in the R&D office, this enables the development team to experience the sounds of the vehicle driving through free-driving scenarios that can be changed in a split second and show the resulting noise changes.

Full-vehicle NVH Simulator

This is a project-based solution where the R&D department or the NVH manager decides on the vehicle to be used, including the add-on vibration for various parts of the car such as the seat, the pedals and the steering wheel.

The test driver sits in the vehicle in front of a projection screen where a virtual scenario is projected and experiences the sounds and vibration of the vehicle being assessed while “driving through” the planned test program.

The Simulator responds to the driver’s input and reproduces the correct sound and vibration which is representative of the scenario. Just like in a real vehicle, the stimuli are affected by changes in the road surface, vehicle speed, driving behaviour and throttle position.

On-road Vehicle NVH Simulator

Allows the test driver to evaluate the harmonic sounds from any of the above simulator programs while driving the real vehicle in a pre-designed test program. 

Solution Added Values /Customer Benefits:

• Assessment of a virtual vehicle by free-driving allows decisions that cannot be achieved by traditional on-road or in-room methods to be made

• New vehicles can be 'driven' and assessed well in advance of first physical prototypes
• Drastically reduces the time taken to assess multiple driving conditions
• Simulator database ensures that a vehicle is always available to be driven, unaffected by the effect of modifications, weather, age, etc.
• Vehicle level model can be expanded to a full model by adding source or path contribution data
• NVH simulator model of a new vehicle becomes more complete and accurate as the programme moves from high-level target setting through target cascading and concept evaluation into the detailed design phase
• Increases confidence in the NVH decision-making process
• Highlights the importance of part-load conditions on the overall perception of powertrain sound quality.
• Change modelling makes CAE data much more useable, making it easy to create a new variant of a vehicle in the simulator
• Allows CAE analysts to appreciate the relative benefits of different designs