@article{ShirurBirknerHenzeetal.2021, author = {Shirur, Naveen and Birkner, Christian and Henze, Roman and Deserno, Thomas Martin}, title = {Tactile Occupant Detection Sensor for Automotive Airbag}, volume = {14}, pages = {5288}, journal = {Energies}, number = {17}, publisher = {MDPI}, address = {Basel}, issn = {1996-1073}, doi = {https://doi.org/10.3390/en14175288}, year = {2021}, abstract = {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.}, language = {en} } @inproceedings{ShirurBirknerHenzeetal.2021, author = {Shirur, Naveen and Birkner, Christian and Henze, Roman and Deserno, Thomas Martin and Dudhat, Darshankumar}, title = {Effect of airbag deployment phases on tactile occupant detection sensor}, booktitle = {2020 XII International Science-Technical Conference AUTOMOTIVE SAFETY}, publisher = {IEEE}, address = {Piscataway}, isbn = {978-1-7281-5812-9}, doi = {https://doi.org/10.1109/AUTOMOTIVESAFETY47494.2020.9435283}, year = {2021}, language = {en} } @inproceedings{daSilvaJuniorBirknerShirur2020, author = {da Silva Junior, Amauri and Birkner, Christian and Shirur, Naveen}, title = {Development of Lateral Control for Different Electric Vehicle Drive and Steering Systems}, booktitle = {FISITA Web Congress 2020}, publisher = {FISITA}, address = {Bishops Stortford}, url = {https://www.fisita.com/library/f2020-vdc-075}, year = {2020}, language = {en} } @inproceedings{ShirurBirknerFosteretal.2022, author = {Shirur, Naveen and Birkner, Christian and Foster, Andreas and Bleeck, Matthias}, title = {Active control of airbag filling: sensor, valve, test bench, best-practice of industry-university-cooperation}, booktitle = {Fahrzeugsicherheit 2022: Auf dem Weg zur Fahrzeugsicherheit 2030}, publisher = {VDI-Verlag GmbH}, address = {D{\"u}sseldorf}, isbn = {978-3-18-092387-1}, issn = {0083-5560}, doi = {https://doi.org/10.51202/9783181023877-35}, pages = {35 -- 46}, year = {2022}, language = {en} } @article{ShirurBirknerBleecketal.2023, author = {Shirur, Naveen and Birkner, Christian and Bleeck, Matthias and Forster, Andreas and Deserno, Thomas Martin and Henze, Roman}, title = {3D simulations and laboratory experiments to evaluate a dynamic airbag valve}, volume = {29}, journal = {International Journal of Crashworthiness}, number = {2}, publisher = {Taylor \& Francis}, address = {London}, issn = {1754-2111}, doi = {https://doi.org/10.1080/13588265.2023.2252214}, pages = {378 -- 388}, year = {2023}, abstract = {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.}, language = {en} } @inproceedings{ShirurBirknerForsteretal.2022, author = {Shirur, Naveen and Birkner, Christian and Forster, Andreas and Deserno, Thomas Martin and Henze, Roman}, title = {Smart airbag: an innovative adaptive airbag considering out-of-position (OOP) for restraint effect optimization and injury mitigation}, volume = {2022}, booktitle = {15th International Symposium and Exhibition on Sophisticated Car Safety Systems}, publisher = {Fraunhofer ICT}, address = {Pfinztal}, issn = {0722-4087}, url = {https://publica.fraunhofer.de/entities/publication/c890596b-4b7e-4406-a5f6-d2b5e588f2e7/details}, year = {2022}, language = {en} }