Abstract
ISO-26262, as the primary functional safety standard for automotive systems, covers the management of functional safety, safety lifecycle and safety assessment according to the Automotive Safety Integrity Level (ASIL). The ASIL of an automotive system in ISO-26262 is determined by the Hazard Analysis and Risk Assessment (HARA). In this paper, we based on the ISO-26262 functional safety concept to conduct an Intelligent Brake-By-Wire System (IBBWS) design and analysis process. The main contribution of this paper is to demonstrate how to apply the functional safety concept of ISO-26262 to a real safety-critical system. The demonstrations include how to analyze the functional safety for an automotive system, determine the ASIL to be achieved according to the safety analysis results and perform the safety design for IBBWS to meet the demanded ASIL with FTA (Fault Tree Analysis) and FMEA (Failure Mode and Effect Analysis).
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