Highly Redundant Safety Scheme and Its Experimental Validation for the Electronic-Controlled Pneumatic Braking System of Commercial Vehicle for Autonomous Driving

With the relentless progression in autonomous driving and chassis control technologies, the safety requirements for commercial vehicle braking systems have intensified. Ensuring the safety and reliability of these systems during operation has become crucial. This study focuses on the automatic pressure regulating in commercial vehicles. To meet the evolving demands and safety standards of autonomous driving and chassis control technologies, this study incorporates theoretical methodologies including relevant standards and fault tree analysis. The research systematically categorizes and assesses failure modes of the automatic regulating valve, proposing a concept and framework for ensuring high redundancy safety. Validating the correctness and feasibility of the high redundancy safety scheme for the automatic regulating valve was accomplished through fault injection methods. Results indicate that the high redundancy safety scheme effectively diagnoses and manages faults, thereby guaranteeing the valve's pressure regulation capability even under fault conditions. This approach provides invaluable insights into the safety and reliability design for commercial vehicles and their components, offering essential theoretical underpinnings for the progression of autonomous driving and chassis control technologies in commercial vehicles.