Virtual Seat SolutionDeliver a safe, lightweight and comfortable seat

at first try-out using virtual prototypes

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Seat

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All PAM- and SYS- product names as well as other products belonging to ESI’s portfolio are tradenames or trademarks of ESI Group, unless specifically mentioned. All other trademarks are the property of their respective owners - Specifications are subject to change without notice.

Images courtesy of BMW, GM, Grupo Antolin, Ford, Hyundai Motor Company, Renault

A u T o m o T I V E

Virtual seat safety tests are reliable thanks to both the accurate seat modeling taking into consideration component manufacturing processes, and seating of the dummies.

Standard protocols like EuroNCAP, JapanNCAP and IIHS are captured in End-to-End virtual processes, making the virtual certification of each design iteration easier and affordable.

new seat design: Ensure the right occupant posture by predicting virtually the H-Point

Certification of the physical seat prototype at first try-out with accurate virtual tests

Whiplash Test

H-POINT MACHINE SEATING B i oRID SEATING B i oRID SLED TEST

• Import HPM1/HRMD• Set-up HPM1/HRMD

seating• Simulation• H-Point results

analysis

• Import BioRID• Set-up BioRID

seating• Simulation• Posture results

analysis

• Set-up BioRID sled test

• Simulation• Sled test results

analysis

H-Point prediction for seat design 1

H-Point prediction for seat design 2

H-Point prediction for seat design 3

Prediction of H-Point for each new iteration of seat design

Results of Whiplash Test.

optimize virtually your seat design using ESI’s Virtual Seat Solution based on a single core model

K E Y B E N E F I T S• Reduced cost and time-to-market by limiting the number of physical

prototypes through an integrated End-to-End solution

• Improved product quality and occupant safety, while innovating by anticipating potential manufacturing and performance issues

• Improved synergies within teams and early management of conflicting seat design requirements

ESI’s Virtual Seat Solution enables a complete chaining from seat manufacturing to seat performance. The manufacturing process leads to occupant seating accuracy taking into account local strains and stresses. The complete chaining provides accurate virtual seat performance tests. The seat single core model simplifies and accelerates design iterations.

“using PAM-COMFORt, within a short

period of time, and with few resources,

we were able to deliver a new seat

design meeting our objectives.”

Jérôme makala, Head of Comfort and Safety Research department, at Renault Group

Guarantee just-in-time delivery by anticipating manufacturing issues

Predict the comfort of your innovative seat

Several anthropometries

Define the right foam overbuildto reach the target shape

Define the cover flattened patterns

Perform the manufacturing of steel, aluminum or composite frames

Perform foam injection taking into account mold shape, injection heads trajectories, material to be injected

Remove cover wrinklesby simulating sewing assembly

Posture measurements

5th, 50th and 95th percentile human models with updated anthropometry (v2009) developed in partnership with Hyundai Motor Company.

Pressure mapping with customized analysis

Occupied seat vibration transmissibility

Temperature and humidity evacuation

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S E L E C T E D C U STO M E R R E F E R E N C E SF.S. Fehrer, Ford, Fuji Seat, GM, Grupo Antolin, Honda, Hyundai Motor Company, Ipeco, Johnson Controls Inc., Lear, Mazda, NHK Spring, Renault, Seat, Tachi-S, Toyota Boshoku, TS Tech, Volkswagen.

“Since seats contain lots of components, it’s very difficult to find the factors that influence the dynamic comfort of seat. We tried to figure this out using PAM-COMFORT and reached our goal. This new way of working will help us save money and time effectively.” Han, Ji Won, Body & Trim development team at Hyundai Motor Company

“The simulation process is predictive enough to consider a virtual seat design process for occupied seat vibration transmissibility.” Reference: BMW Publication SAE 2008

THERmAl ComfoRT “We upgraded the seat model to include thermal properties. We obtained a seat model able to predict human pressure distribution and human thermal comfort.” Reference: Ford Publication IQPC 2012

Skin temperature distribution at 22°C ambient.

Courtesy of Ford.

Heating pads with wires are added to the model.

Courtesy of Ford.

“Overall, PAM-COMFORT was able to replicate experimental results to within normal test variation.” Reference: GM Publication SAE 2012

Stress of 3D foam at 200N Load Pt 1 (0,0) - With Trim.Courtesy of GM.

H-PoInT And PoSTuRAl ComfoRT “The numerical results (H-Point, thigh, torso and back angles) approach the experimental responses well and allow realistic predictions.”

“PAM-COMFORT simulation technique is sensitive to the detailed seat characteristics. It is predictive enough to consider a virtual seat design process.”Reference: Renault Publication IQPC 2007

Simulation of the dummy positioning on the complete trimmed seat (cut view, compression stresses: blue=low, red=high).Courtesy of Renault.

“Thanks to the new enhancements for task automations, accurate safety tools corresponding to our needs and easy-to-use data export and automation in the post-treatment, we saved about 50% time for each simulation loop.” franck Chantegret, Simulation manager, Grupo Antolin Seats Business unit

Sled test with a Hybrid III 50e percentile on a driver seat (AMS 50km).Courtesy of Grupo Antolin.

SEAT SAfETy

Seat and Dummy model (M95,E2). Courtesy of Hyundai Motor Company.

SEATING CHAINING vIBRATIoN

dynAmIC ComfoRT

IndEnTATIon, HARdnESS TEST

Manufacturing pre-stress. Occupant position. Occupied seat stress. Vibration transfer function. Courtesy of BMW.

Air flow distribution in the chamber.

Courtesy of Ford.

Virtual Seat SolutionDeliver a safe, lightweight and comfortable seat

at first try-out using virtual prototypes

w w w . e s i - g r o u p . c o m

All PAM- and SYS- product names as well as other products belonging to ESI’s portfolio are tradenames or trademarks of ESI Group, unless specifically mentioned. All other trademarks are the property of their respective owners - Specifications are subject to change without notice.

Images courtesy of BMW, GM, Grupo Antolin, Ford, Hyundai Motor Company, Renault

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A b O u t E S I G RO u PESI is a pioneer and world-leading provider in Virtual Prototyping that takes into account the physics of materials. ESI

boasts a unique know-how in Virtual Product Engineering, based on an integrated suite of coherent, industry-oriented

applications. Addressing manufacturing industries, Virtual Product Engineering aims to replace physical prototypes

by realistically simulating a product’s behavior during testing, to fine-tune fabrication and assembly processes in

accordance with desired product performance, and to evaluate the impact of product use under normal or accidental

conditions. ESI’s solutions fit into a single collaborative and open environment for End-to-End Virtual Prototyping.

These solutions are delivered using the latest technologies, including immersive Virtual Reality, to bring products

to life in 3D; helping customers make the right decisions throughout product development. The company employs

about 950 high-level specialists worldwide covering more than 30 countries. ESI Group is listed in compartment C of

NYSE Euronext Paris.

info@esi-group.com

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