自動車の機能安全と部品安全 - jeita.or.jp

1 ISO 26262 ( ) 2015/10/21 2 (ECU) 3 2015/10/21 4 2015/10/21 IEC61508 ISO10218 ISO26262 IEC62304 IEC62278 IEC62061 JAR 1309 IEC61800 IEC61513 IEC61508 2011 ISO 26262 ECU 5 2015/10/21 ECU: Electric Control Unit ISO 26262 6 2015/10/21 / /PE V.

2 2-5 2-6 2-7 3-5 3-6 3-7 3-8 4-5 4-6 4-7 4-11 4-10 4-9 4-8 . ISO26262 . ASIL 9-5 ASIL 9-6 9-7 9-8 . 7-5 7-6 . 5-5 5-6 5-7 5-8 5-9 5-10 . 8-5 8-6 8-7 . 6-5 6-6 6-7 6-8 6-9 6-10 6-11 8-8 8-9 8-10 8-11 8-12 8-13 8-14 V V V V V V ISO 26262:2011 ISO 26262 E/E / E/E E/E - ISO 26262 7 2015/10/21 ISO 26262.

3 2011 Hazard ( ) 100V Hazardous event Risk 100V 8 2015/10/21 ( ) ECU ( ) ( ) 9 2015/10/21 (Severity) E/E (Exposure) Controllability) ASIL=Automotive Safety Integrity Level ASIL D ASIL C ASIL B ASIL A QM =ASIL ALARP) As Low As Reasonably Practicable ( ) QM (S) (C) (E) 10 2015/10/21 < > ISO26262 11 2015/10/21 12 2015/10/21 ISO26262 13 2015/10/21 How What PDCA ISO26262 TS16949 Automotive SPICE CMMI Dev QMS SW ISO9001 QMS 14 Failure (ECU)

4 Error Fault 15 2015/10/21 Error ECU ISO 26262:2011 ISO 26262 16 2015/10/21 17 2015/10/21 ( ) ( ) 18 2015/10/21 19 2015/10/21 / SM) IF 20 2015/10/21 ISO26262 21 2015/10/21 --- --- H&R --- TS-16949 ISO 26262 TS16949 AutomotiveSPICE ( )

5 22 2015/10/21 / 23 24 2015/10/21 OEM Tier A B C DIA DIA: / ( ) IEC62380 FIDES SN29500 ( ) SPFM and LFM PMHF or 2 25 2015/10/21 26 2015/10/21 IEC/TR 62380 27 2015/10/21 SPF RF DPF Latent Perceived & Detected Safe Fault (Single Point Fault) (Residual Fault) (Dual Point Fault) SM SPF IF+SM) N>2 (Perceived) (Detected) 28 2015/10/21 SPFM Single Point Fault Metric) = 1- / % SPF RF DPF Latent Perceived & Detected Safe Fault LFM Latent Fault Metric) = 1- /( - )

6 % ASIL B ASIL C ASIL D 90% 97% 99% ASIL B ASIL C ASIL D 60% 80% 90% PMHF Probabilistic Metric for random Hardware Failures) = + fit ASIL B ASIL C ASIL D < 100fit < 100fit < 10fit 29 2015/10/21 (ASIL) DIA( ) ISO26262 ASIC (ASIL) DIA( ) ISO26262 ( ) TS16949 TS16949: ISO 9001 A: B: ASIL C: 30 2015/10/21 A B C ISO 26262 Q&A 31 2015/10/21