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Occupant detection and classification system using electric-field imaging technology for capacitive sensing; a double-layer flexible sensor assembly is installed in the seat cushion. It detects and classifies the front passenger in accordance with NHTSA’s FMVSS-208 requirements. It sends a signal to the airbag’s ECU to suppress or enable the passenger side front airbag based on passenger classification.
Safety Goal: To protect children and small adults from the deployment of front airbags.
Benefits:
- Suppresses airbags for small children and small stature adults in accordance with the National Highway Traffic and Safety Administration (NHTSA) occupant classification system
- Protects small children and small stature adults in the event of a frontal crash from the impact of a deployed airbag
- “E-field imaging” technology is mounted into the seat cushion (seat reconfiguration does not compromise the system)
- Senses the presence of a child regardless of the position, e.g. kneeling or sharing a seat
- Compatible with and integrates with seat heaters
- Integrates and communicates with other seat functions, including seat belt reminder systems (SBRS)
How it works: A flexible sensor assembly is mounted to the seat cushion. It setups a low-level electric field (EF), "e-field." It classifies the passenger in accordance with FMVSS-208, detecting presence, size and relative position. The information is transmitted to the ECU; the information is then transmitted to the front airbag s ECU for proper deployment or suppression. This system is currently in GM vehicles.
Meets Occupant Classification Requirements in FMVSS-208 |