TY - JOUR A1 - Shirur, Naveen A1 - Birkner, Christian A1 - Henze, Roman A1 - Deserno, Thomas Martin T1 - Tactile Occupant Detection Sensor for Automotive Airbag JF - Energies N2 - 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. UR - https://doi.org/10.3390/en14175288 KW - automotive airbag KW - capacitive tactile sensor KW - occupant detection KW - passive safety KW - vehicle crash Y1 - 2021 UR - https://doi.org/10.3390/en14175288 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-9210 SN - 1996-1073 VL - 14 IS - 17 PB - MDPI CY - Basel ER - TY - CHAP A1 - Shirur, Naveen A1 - Birkner, Christian A1 - Henze, Roman A1 - Deserno, Thomas Martin A1 - Dudhat, Darshankumar T1 - Effect of airbag deployment phases on tactile occupant detection sensor T2 - 2020 XII International Science-Technical Conference AUTOMOTIVE SAFETY UR - https://doi.org/10.1109/AUTOMOTIVESAFETY47494.2020.9435283 KW - accidents KW - airbag deployment KW - capacitive tactile sensor KW - passive safety KW - restraint effect KW - vehicle crash testing Y1 - 2021 UR - https://doi.org/10.1109/AUTOMOTIVESAFETY47494.2020.9435283 SN - 978-1-7281-5812-9 PB - IEEE CY - Piscataway ER - TY - CHAP A1 - da Silva Junior, Amauri A1 - Birkner, Christian A1 - Shirur, Naveen T1 - Development of Lateral Control for Different Electric Vehicle Drive and Steering Systems T2 - FISITA Web Congress 2020 Y1 - 2020 UR - https://www.fisita.com/library/f2020-vdc-075 PB - FISITA CY - Bishops Stortford ER - TY - CHAP A1 - Shirur, Naveen A1 - Birkner, Christian A1 - Foster, Andreas A1 - Bleeck, Matthias T1 - Active control of airbag filling: sensor, valve, test bench, best-practice of industry-university-cooperation T2 - Fahrzeugsicherheit 2022: Auf dem Weg zur Fahrzeugsicherheit 2030 UR - https://doi.org/10.51202/9783181023877-35 KW - Kraftfahrzeug KW - Verkehrssicherheit KW - Technische Sicherheit KW - Passive Sicherheit KW - Fahrerassistenzsystem KW - Elektrofahrzeug Y1 - 2022 UR - https://doi.org/10.51202/9783181023877-35 SN - 978-3-18-092387-1 SN - 0083-5560 SP - 35 EP - 46 PB - VDI-Verlag GmbH CY - Düsseldorf ER - TY - JOUR A1 - Shirur, Naveen A1 - Birkner, Christian A1 - Bleeck, Matthias A1 - Forster, Andreas A1 - Deserno, Thomas Martin A1 - Henze, Roman T1 - 3D simulations and laboratory experiments to evaluate a dynamic airbag valve JF - International Journal of Crashworthiness N2 - Airbag pressure determines the restraint effect during a vehicle crash. The pressure required to restrain the occupant depends on pre-crash detection, collision parameters and the occupant’s mass and position. This work modulated airbag pressure for optimum safety using a novel airbag control valve for cold-gas inflators. This paper evaluates the valve’s stationary and dynamic performances for Helium by 3D flow simulations using a pressure-based solver in ANSYS Fluent® and SAE J2238 laboratory tank tests. The predicted and measured tank pressures for the fully open (stationary) valve were agreed by an average 93.73% with an excellent correlation (correlation coefficient, R = 0.9995). For the first dynamic operation with 10 ms switching time, the results agreed by 92.78% with R = 0.9975. In the second test with 30 ms switching, 83.67% agreement was observed with R = 0.9893. The research concluded that the valve modulates the bag pressure and is implementable in vehicles. UR - https://doi.org/10.1080/13588265.2023.2252214 KW - Automotive airbag KW - cold-gas inflator KW - airbag control valve KW - pressure modulation KW - restraint effect Y1 - 2023 UR - https://doi.org/10.1080/13588265.2023.2252214 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-39673 SN - 1754-2111 SN - 1358-8265 VL - 29 IS - 2 SP - 378 EP - 388 PB - Taylor & Francis CY - London ER - TY - CHAP A1 - Shirur, Naveen A1 - Birkner, Christian A1 - Forster, Andreas A1 - Deserno, Thomas Martin A1 - Henze, Roman T1 - Smart airbag: an innovative adaptive airbag considering out-of-position (OOP) for restraint effect optimization and injury mitigation T2 - 15th International Symposium and Exhibition on Sophisticated Car Safety Systems Y1 - 2022 UR - https://publica.fraunhofer.de/entities/publication/c890596b-4b7e-4406-a5f6-d2b5e588f2e7/details SN - 0722-4087 VL - 2022 PB - Fraunhofer ICT CY - Pfinztal ER -