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Tactile Occupant Detection Sensor for Automotive Airbag

  • Automotive airbags protect occupants from crash forces during severe vehicle collisions. They absorb energy and restrain the occupants by providing a soft cushion effect known as the restraint effect. Modern airbags offer partial restraint effect control by controlling the bag’s vent holes and providing multi-stage deployment. Full restraint effect control is still a challenge because the closed-loop restraint control system needs airbag–occupant contact and interaction feedback. In this work, we have developed novel single and matrix capacitive tactile sensors to measure the occupant’s contact data. They can be integrated with the airbag surface and folded to follow the dynamic airbag shape during the deployment. The sensors are tested under a low-velocity pendulum impact and benchmarked with high-speed test videos. The results reveal that the single sensor can successfully measure occupant–airbag contact time and estimate the area, while the contact position is additionally identified from the matrix sensor.

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Metadaten
Author:Naveen ShirurORCiD, Christian BirknerORCiD, Roman Henze, Thomas M. DesernoORCiD
Language:English
Document Type:Article
Year of first Publication:2021
published in (English):Energies
Publisher:MDPI
Place of publication:Basel
ISSN:1996-1073
Volume:14
Issue:17
Pages:16
Article Number:5288
Review:peer-review
Open Access:ja
Version:published
Tag:automotive airbag; capacitive tactile sensor; occupant detection; passive safety; vehicle crash
URN:urn:nbn:de:bvb:573-9210
Related Identifier:https://doi.org/10.3390/en14175288
Faculties / Institutes / Organizations:Fakultät Elektro- und Informationstechnik
CARISSMA Institute of Safety in Future Mobility (C-ISAFE)
Licence (German):License Logo Creative Commons BY 4.0
Release Date:2021/10/11