SOTIF-Based Analysis and Design of Control Strategies for Controllable Suspension Systems of Automobiles

• The study applies STPA to systematically identify SOTIF-related hazards in ECS systems, providing a structured safety analysis framework. • A model predictive control (MPC) strategy with explicit dynamic constraints is developed, integrating actuator performance boundaries to enhance safety and performance. • Hardware-in-the-loop testing validates the proposed control strategy under diverse operating conditions, demonstrating significant improvements in suspension functionality and safety. • The research bridges the gap between SOTIF principles and practical control design for automotive suspension systems, offering a comprehensive approach for future autonomous vehicle chassis development.