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 -