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Advanced Crash Discrimination using Crash Impact Sound Sensing (CISS)
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 03, 2006 by SAE International in United States
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Current crash sensing technology is mainly based on the measurement of acceleration, aside from the pressure sensing technology for side impact sensing introduced Siemens VDO in 1997. The airbag control unit mounted in the passenger compartment captures vehicle acceleration and calculates the crash detection algorithms. In most of today's systems, the discrimination algorithms are supported by acceleration or air pressure data measured at the crash zone of the vehicle.
Conventional sensor setups have difficulties detecting specific crash situations (e.g. low speed wall versus high speed deformable barrier or angular situations) in a timely manner and with good robustness.
The measurement of “Crash Impact Sound” in the vehicle structure improves the discrimination of today's sensing systems significantly. “Crash impact sound sensing” leads to higher discrimination robustness. Very fast activation times of passive restraints like belt pretensioners and airbags can be achieved and give occupants maximum protection. In addition, the number of sensors in the safety system can be reduced due to fast signal transmission. As an example, two early crash sensors can be reduced to one. The integration of “Crash Impact Sound” sensing into the central control module allows single point sensing for most frontal impacts.
|Technical Paper||Advancements in Crash Sensing|
|Technical Paper||Side-Impact Restraint Activation System Combining Acceleration and Dynamic-Pressure Sensing|
|Technical Paper||Challenges in Crash Simulation Due to Emerging Safety Standards|
CitationFeser, M., McConnell, D., Brandmeier, T., and Lauerer, C., "Advanced Crash Discrimination using Crash Impact Sound Sensing (CISS)," SAE Technical Paper 2006-01-1590, 2006, https://doi.org/10.4271/2006-01-1590.
- Feser Michael, Wieand Christian, Schmidt Claus, Brandmeier Thomas; “Crash impact sound sensing (CISS) - higher crash discrimination performance at lower cost”; (2004) Airbag 2004
- Dornfeld D.A., Kannatey-Asibu E.; “Acoustic Emission During orthogonal Metal Cutting” (1980) Int. J. Mech.Sci. Vol. 22, pp285-296 Pergamon Press Ltd.
- Cremer Lothar, Heckl Manfred; “Körperschall Physikalische Grundlagen und technische Anwendungen” (1996) Springer Verlag Berlin, Heidelberg, New York
- Stierle Th., Winkler G., Pfau L.; “Fast Pressure-Based Sensing System for Side Impact Restraint Systems” (1999) SAE 1999-01-3184
- Winkler Gerd, Stierle Thomas, Malbouef Thomas; “Combining Acceleration and Dynamic-Pressure Sensing For Side-Impact Restraint Activation”; (2002) Airbag 2002
- Fricke Heiko; “Untersuchung des bei der Verformung von Metallträgern entstehenden Körperschalls” (1994) Siemens Document
- Trauth Markus; “Untersuchung von Sensoren zur Körperschallanalyse” (1997) Siemens Document
- Leistner Manfred Prof. Dr., „Schallemissionsanalyse”, http://www.mleistner.de/
- Skal's'kyi V. R., Andreikiv O.E., Serhienko O.M.; “Investigation of the Plastic Deformation of Materials by the Acoustic Emission Method” (2003) Mat. Sci. Vol. 39 No.1, pp86-107