Research on functional safety of electric steering system for passenger vehicle

Based on the methodology of the national standard GB/T 34590-2017 "Road vehicles functional safety", the hazard analysis and risk assessment of failure modes under typical operation scenarios are carried out aiming at the function of steering power system, and the safety goals and quantitative indicators of controllability are proposed. Vehicle level safety validation test in typical scenarios to evaluate the correctness and integrity of safety goals at vehicle level are carried out. It provides guideline for the development of functional safety for electric steering system.