Product: Engine Control Unit (ECU) – Hardware Functional Safety Analysis

Client Challenge:
The project focused on ensuring Functional Safety compliance of an Engine Control Unit (ECU) hardware platform in accordance with ISO 26262. The objective was to evaluate hardware reliability, identify potential failure mechanisms, and define effective diagnostic concepts and safety mechanisms to achieve the required safety metrics.

RSB Solution:

• Performed hardware Functional Safety analyses at electronic circuit level in accordance with ISO 26262 requirements.
• Conducted Fault Tree Analysis (FTA) and Failure Modes, Effects and Diagnostic Analysis (FMEDA) to evaluate hardware failure behavior and diagnostic coverage.
• Assessed hardware failure modes, failure effects, and their impact on Functional Safety objectives.
• Identified, evaluated, and allocated existing safety mechanisms to hardware elements.
• Defined and proposed additional diagnostic concepts and safety mechanisms to improve diagnostic coverage and achieve target safety metrics.
• Collaborated with hardware, system, and Functional Safety engineering teams to ensure consistency between hardware architecture and safety requirements.
• Supported safety architecture optimization and quantitative evaluation of hardware safety metrics.

Delivered Results:
The project delivered complete FMEDA and FTA work products for the ECU hardware platform, including quantitative hardware safety metrics, safety mechanism allocation, diagnostic coverage analysis, and recommendations for additional safety measures. The resulting Functional Safety documentation provided comprehensive support for ISO 26262 compliance.

Client Value:
The client gained a robust hardware Functional Safety assessment that improved diagnostic coverage, strengthened hardware safety architecture, identified potential safety gaps early in development, and provided objective evidence supporting ISO 26262 compliance for the ECU platform.