The BMW SBE2 Child Seat Detection System
- Cite this paper as:
- Eisenmann L., Marschner C., Lu Y., Sauer S., Howard H. (2000) The BMW SBE2 Child Seat Detection System. In: Krüger S., Gessner W. (eds) Advanced Microsystems for Automotive Applications 2000. VDI-Buch. Springer, Berlin, Heidelberg
Approximate weight of driver (occupant classification)
Drivers distance to airbag (out of position sensor)
Is the seat occupied at all? (seat occupation detection)
Is it occupied by a child seat? (child seat detection)
Child seat detection is especially important in two-seat vehicles like the Z3 roadster. This challenge is adressed by the upcoming BMW SBE2 system. Unlike some competitors strategies to install manual airbag deactivation switches or to develop a system that recognises only certain child seats equipped with electronic resonators, the BMW SBE2 system generally discriminates between adults and child restraints.
The sensor-principle is based on the measurement of two distinct physical properties, pressure profile and capacity. The employment of digital signal processing and pattern recognition algorithms enables a redundant, selfsupervising and fully-automatic detection system.
Keywordschild seat detection system capacitive-system occupant classification field detection system electric field smart airbag
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