Case Study
ASIL C Battery Management System (BMS)
Objective: Develop a safety-compliant Energy Management system for a high-performance electric motorcycle, targeting ASIL C classification under ISO 26262:2018.
Concept Phase: Authored the Item Definition and conducted the hazard analysis and risk assessment (HARA) to identify the safety goals, safe states and fault tolerant time intervals. Derived the Functional Safety Concept (FSC) to establish high-level functional safety requiremetns.
System design: Developed the Technical Safety Concept (TSC) and detailed the technical safety requirements (TSRs). Defined the Fault Handling Time Intervals (FTTI) for the safety relevant elements of the battery management system.
Safety Analysis: Moderated the FMEA-MSR, leading cross-functional teams to identify failure modes their effects. Proposed and integrated specific safety mechanisms, including redundant voltage sensing and independent hardware-cutoff paths.
Validation & Testing: Proposed the validation strategy for the safety goals, working in strong collaboration with the cell engineer. Validated the safety limits and the FTTIs for the proposed battery.
