| Title |
Design and Verification of the Hardware Architecture for the Active Seat Belt Control System Compliant to ISO 26262 |
| Authors |
이준혁(Lee, Jun Hyok) ; 곽현철(Koag, Hyun Chul) ; 이경중(Lee, Kyung-Jung) ; 안현식(Ahn, Hyun-Sik) |
| DOI |
https://doi.org/10.5370/KIEE.2016.65.12.2030 |
| Keywords |
ISO26262 ; Functional safety ; HARA(Hazard Analysis and Risk Assessment) ; ASIL(Automotive Safety Integrity Level) ; ASB(Active Seat Belt) ; DC motors |
| Abstract |
This paper presents a hardware development procedure of the ASB(Active Seat Belt) control system to comply with ISO 26262. The ASIL(Automotive Safety Integrity Level) of an ASB system is determined through the HARA(Hazard Analysis and Risk Assessment) and the safety mechanism is applied to meet the reqired ASIL. The hardware architecture of the controller consists of a microcontroller, H-bridge circuits, passive components, and current sensors which are used for the input comparison. The required ASIL for the control systems is shown to be satisfied with the safety mechanism by calculation of the SPFM(Single Point Fault Metric) and the LFM(Latent Fault Metric) for the design circuits. |