A fusion safety and security analysis framework for intelligent and connected vehicles

Area of Science:

• Automotive Engineering
• Intelligent and Connected Vehicles (ICVs)
• Systems Safety Engineering

Background:

• The automotive industry is rapidly advancing towards Intelligent and Connected Vehicles (ICVs), characterized by complex electronic systems and extensive data exchange.
• Traditional safety measures are insufficient, necessitating consideration of functional safety, safety of the intended functionality (SOTIF), and cybersecurity.
• Existing safety analysis methods often address these critical domains in isolation, leading to potential gaps and incomplete risk assessments.

Purpose of the Study:

• To introduce a novel fusion safety analysis method for the collective evaluation of functional safety, SOTIF, and cybersecurity in ICVs.
• To address the limitations of current siloed approaches by providing an integrated safety assessment framework.
• To enhance the overall safety and reliability of intelligent and connected vehicles through a holistic safety analysis.

Main Methods:

• Development of a fusion safety analysis method that integrates functional safety, SOTIF, and cybersecurity assessments.
• Identification of key safety attributes relevant to ICVs across the three domains.
• Mapping of unsafe behaviors to specific hazardous scenarios for quantitative risk assessment.

Main Results:

• The proposed fusion safety analysis method effectively evaluates integrated safety risks across multiple domains.
• A case study on Adaptive Cruise Control (ACC) demonstrated the method's practical applicability and effectiveness.
• Quantitative assessment of integrated safety risks was achieved by linking safety attributes to hazardous scenarios.

Conclusions:

• Addressing functional safety, SOTIF, and cybersecurity collectively is crucial for ensuring the safety of ICVs.
• The fusion safety analysis method provides a comprehensive approach to identifying and mitigating multi-dimensional safety risks.
• Implementing integrated safety assessments is vital for advancing the safety and security of intelligent and connected vehicle technologies.