Sensors 2010, 10(4), 3759-3770; doi:10.3390/s100403759
Communication

Development of an Emergency Locking Unit for a Belt-In-Seat (BIS) System Using a MEMS Acceleration Sensor

Department of Mechanical and Mechatronics Engineering, Kangwon National University, 192-1, Hyoja2-dong, Chuncheon, Kangwon-do, 200-701, Korea
* Author to whom correspondence should be addressed.
Received: 1 February 2010; in revised form: 7 April 2010 / Accepted: 8 April 2010 / Published: 14 April 2010
(This article belongs to the Section Physical Sensors)
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Abstract: This paper proposes an emergency locking unit (ELU) for a seat belt retractor which is mounted on the back frame of a vehicle seat. The proposed unit uses a recliner sensor based on a MEMS acceleration sensor and solenoid mechanism. The seat has an upper frame supported to tilt on a lower frame. The retractor in belt in seat (BIS) system is supported by the upper frame. The proposed recliner sensor based on a MEMS acceleration sensor comprises orientation means for maintaining a predetermined orientation of emergency relative to the lower frame independently of the force of gravity when the upper frame tilts on the lower frame. Experimental results show that the developed recliner sensor unit operates effectively with respect to rollover angles. Thus, the developed unit will have a considerable potential to offer a new design concept in BIS system.
Keywords: belt in seat; retractor; emergency locking mechanism; MEMS acceleration sensor

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MDPI and ACS Style

Baek, C.H.; Lee, J.W.; Kim, S.H.; Paek, I. Development of an Emergency Locking Unit for a Belt-In-Seat (BIS) System Using a MEMS Acceleration Sensor. Sensors 2010, 10, 3759-3770.

AMA Style

Baek CH, Lee JW, Kim SH, Paek I. Development of an Emergency Locking Unit for a Belt-In-Seat (BIS) System Using a MEMS Acceleration Sensor. Sensors. 2010; 10(4):3759-3770.

Chicago/Turabian Style

Baek, Chang Hyun; Lee, Jeong Wan; Kim, Seock Hyun; Paek, Insu. 2010. "Development of an Emergency Locking Unit for a Belt-In-Seat (BIS) System Using a MEMS Acceleration Sensor." Sensors 10, no. 4: 3759-3770.

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