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HEADEbertstraße 30a52134 HerzogenrathTel.: +49 2407 577-0Fax: +49 2407 577-99 E-Mail: info@head-acoustics.comWeb: www.head-acoustics.com

Data Sheet

PreSense (7600ff)Interactive simulator for NVH assess-ment of virtual prototypes and virtual test drives

OverviewPreSense facilitates analyses of NVH performance during early stages of development and prototyping. It is an invaluable tool to speed up develop-ment, reduce costs, save prototypes and real testing time. Vehicle and component noise and vibration like-wise can extensively be validated in early development stages, not having to physically assemble components or make a prototype or a test vehicle available.

The interactive vehicle simulation lets you experience sound and vibration and gives you a greater insight than charts and numbers. The simulation uses sound data measured under real-life conditions as well as data generated by binaural transfer path analyses. Additionally, simulation data (CAE) can be integrated and made perceptible.

The simulated vehicle responds to interactions such as gear selection, acceleration and braking in real time. Operating state variables such as vehicle speed, engine speed and load are calculated based on a driving model and the NVH simulator auraliz-es corresponding sounds accordingly.

During simulation, you can quickly replace, add and modify sound sourc-es like engines, tires or other com-ponents, and easily switch between them. Such changes are audible and perceptible immediately, enabling the driver of the virtual vehicle to make valid acoustic assessments and a quick decision without in-depth specialist knowledge.

Feature overview y Scalable, modular driving sound simulator: configurations from desktop to mobile

y Interactive true-to-life re-synthesis in real-time of powertrain, tire/road, and wind noise using advanced algorithms

y Additional audio sources: Order Generator, HDF Player, ImPulser

y Interactive level adjustment, mute and solo function for Audio Sources

y Basic driving dynamic model to calculate RPM, load and speed from acceleration and brake pedal

y Interface to IPG CarMaker® for complex dynamic driving models of e.g. hybrid and electric vehicles

y Operating state values from multiple sources for different applications or system configurations: USB pedals, CAN bus, HDF file, network interface, manual mode

y Multichannel playback, e.g., sound at driver’s ears, seat vibration, and steer-ing wheel vibration simultaneously

y Configurable IIR and FIR online filter

y Seamless TPA data import from Progno[i]se for path contributions of Powertrain or Tire/Road noise

y Road-visualization to enhance speed perception

y Drive-to-file: Integrated recorder saves re-synthesized audio and operating states into a file for later analysis with ArtemiS suite

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Simplify decision-making during development

y Make what-if analyses audible by switching between components, for example different tires, engines, exhaust systems, and immediately experience the changes in sound and vibration.

y Hear and feel the difference. Personal experience is more convincing than numbers and charts.

y Assess weaknesses and problems by evaluating counter-measures without the need of a costly prototype or NVH knowledge.

y Let colleagues and decision-makers experience the effects of different measures and find convincing solutions.

Troubleshooting and target sound setting

y Involve customers, colleagues and decision-makers to assess various measures or sound manipulations.

Make TPA results easily perceptible

y Identify the problem by determining transfer paths of sound phenomena to find the source of a complaint.

y Attain deeper insight by listening to sounds individually and trace them back to their originating components.

y Work on a solution and derive corrective measures and optimization potential.

y Simplify in-situ assessment for decision-makers by provid-ing perceptible and comprehensible solutions.

Applications

Acoustic assessment of control strategies for hybrid vehicles

y Evaluate energy management and corresponding control strategies early in the development process.

y Find the best compromise between energy consumption, driveability, and acoustic performance through an interdis-ciplinary approach.

y Coordinate your work with other departments by using the same 3D vehicle model from 3rd party software, like CarMaker®.

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Global collaboration

y Experience NVH performance anywhere. Perform Transfer Path Analyses somewhere in the world and let your colleagues in another part experience the simulation.

Virtual NVH Prototype

y Perform a Transfer Path Analysis with Progno[i]se based on test bench data to drive a newly developed engine on a test rig.

y Hear the acoustic performance of the new engine and experience its effect during a virtual test drive.

y Use TPA software and PreSense to build a virtual NVH prototype by combining CAE data with test data that uses Frequency Response Functions (FRF) or source strength from CAE.

Sophisticated Tools for office work

y Virtual test drive at the desk, in your lab or using a host vehicle to evaluate NVH performance.

y Replay a real driving scenario from a test track in the NVH Simulator.

y Listen and analyze data at a defined operating state with the Manual Mode.

y Use the integrated Recorder to save audio data and oper-ating states of any virtual test drive to a file for later analy-sis, e.g. in ArtemiS suite.

y Apply different sounds or filters to a virtual test drive based on recorded operating states.

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ConfigurationsThe NVH simulator PreSense as a scalable solution for many different applications is available in various configurations and configuration levels.

Desktop simulator

The desktop simulator offers calibrated and aurally accurate sound reproduction via a binaural headset. The driving situation is simulated by a steering wheel, pedals, and a monitor.

SoundSeat

Combined with SoundSeat (Code 7040) from HEAD acoustics, PreSense can be operated similar to a real vehicle. The user accelerates, changes gears and brakes while the simulator adapts sound and vibration according to the current driving situation in real time. Shakers provide for an even more realistic driving feeling through vibration of the steering wheel and the seat while a large screen offers a visual impression of the driving situation.

SoundCar

Integrated into a real vehicle converted for the purpose, the NVH simulator PreSense facilitates playback in a real vehicle environment. Both the acoustic and vibration-specific aspects of sound perception are considered. The system reproduces sound scenarios recorded in the vehicle by simultaneous generation of airborne sound and vibration stimulus, e.g. from the steering column and the driver’s seat.

Complete vehicle simulator

PreSense can be integrated as a subsystem of a full-fledged vehicle simulator with movable platform. The NVH simulator PreSense receives operating state variables such as engine speed, vehicle speed and load from the simulator via a software interface and adapts the sound accordingly.

Mobile NVH simulator

As a mobile version with ANC headphones, PreSense can be used in a vehicle without having to invest in a costly conver-sion. In such a real driving situation, PreSense receives all required operating state variables via the vehicle’s CAN bus and calculates the sounds correspondingly. The virtual vehicle sounds are played back to the headphones.

Overview of software modules for typical configurations

PSM 00 PSM 10 PSM 20 PSM 21 PSM 22 PSM 30 PSM 31

Desktop Simulator • • • • • •SoundSeat • • • • • •SoundCar • • • • • •Subsystem for Complete Vehicle Simulator • • • • • •Mobile NVH simulator • • • • •

• mandatory / • advanced configuration

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Features per software module

PSM 00 (code 7600) PreSense Basic Framework

y Scalable and modular configurations (see table above)

y Define vehicles and scenarios within your workspace. Each scenario is a combination of audio sources.

y Audio Sources: HDF Player, ImPulser, and Order Generator

y Change the audio source level, mute or solo channels or audio sources

y Import and export your workspace to transfer data and/or settings between systems

y Flexible configuration of operating states (RPMs, loads, speeds, acceleration pedal, brake pedal, …)

y Operating states values from various sources for different applications or system configurations: - USB pedals, gear shifters, or UI pedals - In a mobile simulator, connect to the car via CAN bus to receive pedal positions, speed, load(s) and rpm(s) - Use operating states from an HDF file or constant values to replay a recorded NVH Simulator drive or even

a test track session - Calculate speed, RPM and load from an included basic driving model based on accelerator, brake pedal,

and gear. - Use sliders in Manual Mode to freely set any operating state to a desired value

y Basic Driving Dynamic Model for powertrains with one RPM. Parametrization for various vehicle classes included, import of user-defined parametrization based on Excel file.

y Save re-synthesized audio and operating states data to HDF file using the integrated Recorder

y Road visualization

y Flexible configuration of tachometers and sliders for operating states

y Performance Mode with low latency

y ASIO support

y Support of two audio output channels

PSM 10 (code 7610) PreSense Audio Sources Automotive Standard

y Audio Sources like powertrain, wind, tire/road, wind/tires

y Data preparation algorithms

y Authentic, realistic, artefact-free re-synthesizing algorithms

y Reusable acoustic maps for Audio Sources

y Data presentation as heatmaps, e.g. load vs. RPM vs. order level

y Requirements: PSM 00

PSM 20 (code 7620) PreSense Online Filter

y Individual filter configuration for each Audio Source

y Serial or parallel IIR filters (low-pass, high-pass, parametric low-pass / high-pass, parametric bandpass, bandstop)

y Enable / disable filters while driving

y Adjust filter parameters while driving

y FIR filter including Filter Editor

y Requirements: PSM 00

PSM 21 (Code 7621) PreSense TPA Support

y Make path contributions from TPA audible for Powertrain and Tire/Road noise

y Level adjustment of path contributions

y Mute/soloing of paths contributions

y Seamless TPA data import from Progno[i]se

y Import of path contributions from other software possible (via ATFX-to-HDF conversion in ASM 00)

y Requirements: PSM 00, PSM 10

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Software ModulesThe software PreSense 1.0 (Code 7600ff) contains:

y PSM 00 (Code 7600) PreSense Basic Framework

y PSM 10 (Code 7610) PreSense Audio Sources Automotive Standard

y PSM 20 (Code 7620) PreSense Online Filter

y PSM 21 (Code 7621) PreSense TPA Support

y PSM 22 (Code 7622) PreSense Multichannel Playback

y PSM 30 (Code 7630) PreSense Driving Dynamic Model Interface

y PSM 31 (Code 7631) PreSense Vehicle Simulator Interface

System requirements y Windows 10 (x64):

- Pro, Enterprise, Education; Version 1809 - Branch SAC - Languages: US/Western Europe

y Processor: - Minimum: Core™2 Duo with 2 GHz - Recommended: Core™2 Quad with

3 GHz

y RAM - Minimum: 16 GB - Recommended:

64 GB (Laptop), 128 GB (Desktop PC)

y Solid State Drive (SSD) for the data

y Graphics card - Minimum: NVIDIA card with 640 CUDA®

cores and 2 GB of dedicated RAM, e.g. Quadro® K2200

- Recommended: NVIDIA card with 1024 CUDA® cores (or more) and 4 GB dedicated RAM (or more), e.g. Quadro® P2000, P2200, P3200, P5000

y Display with WXGA resolution (1366x768), Full HD with 1920x1080 recommended

y .NET framework 4.8

y Internet Explorer 11

y HASP dongle driver

y Optional HEAD USB driver

Compatible playback hardware y Recommended: HXB PreSense (coming soon)

y RME Audio Interface with optical output connected to labP2/labO2 via labADAT

y labP2 (higher latency compared to HXB PreSense or RME Audio Interface)

y Integrated sound card (uncalibrated playback and higher latency)

PSM 22 (code 7622) PreSense Multichannel Playback

y Support of more than two audio output channels

y For example, additional shaker playback or driver’s ears and passenger’s ears at the same time.

y Requirements: PSM 00

PSM 30 (code 7630) PreSense Driving Dynamic Model Interface

y Interface to CarMaker® to read/write Operating State values

y Use Complex Dynamic Driving Models from CarMaker® to simulate hybrid and electric vehicles.

y Support for CVT transmission.

y Requirements: PSM 00

PSM 31 (code 7631) PreSense Vehicle Simulator Interface

y Socket Network Interface to receive Operating state values from a 3rd party vehicle simulator

Microsoft and Windows are registered trademarks of Microsoft CorporationCarMaker® is a registered trademark of IPG Automotive GmbHCore™2 Duo and Core™2 Quad are trademarks of Intel Corp.CUDA® and Quadro® are registered trademarks of NVIDIA Corp.ASIO is a trademark of Steinberg Media Technologies GmbH

Related software y Progno[i]se (Code 4914) Binaural Transfer Path Synthesis