| 제목 |
안전띠 착용 유뮤에 근거한 두 단계의 충돌 가혹도 수준을 갖는 충돌 판별 알고리즘 |
| 분야 |
차체 및 구조 안전 |
| 언어 |
Korean |
| 저자 |
박서욱(한국과학기술원), 이재협(현대오토넷) |
| Key Words |
NCAP(New Car Assessment Program; 신차 평가 제도), Airbag-induced injury(에어백으로 이한 상해), Depowered airbag(저압형 에어백), Multi-stage inflator(다단계 가스 발생기), Crasf severity level(충돌 가혹도 수준), Required |
| 초록 |
Many car manufacturers have frequently adopted an aggressive inflator and a lower threshold speed for airbag deployment in order to meet an injury requirement for unbelted occupant at high speed crash test. Consequently, today's occupant safety restraint system has a weakness due to an airbag induced injury at low speed crash event. This paper proposes a new crash algorithm to improve the weakness by suppressing airbag deployment at low speed crash event in case of belted condition. The proposed algorithm consists of two major blocks - crash severity algorithm and deployment logic block. The first block decides crash severity with two levels by means of velocity and crash energy calculation from acceleration signal. The second block implemented by simple AND/OR logic combines the crash severity level and seat belt status information to generate firing commands for airbag and belt pretensioner. Furthermore, it can be extended to adopt additional sensor information from passenger presence detection sensor and sating sensor. A simulation using real crash data for a 1,800cc passenger vehicle has been conducted to verify the performance of proposed algorithm. {{br}} |
| 원문(PDF) |
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