The HIL test verification of vehicle brake control strategy of electronic pneumatic braking system of commercial vehicle based on automatic pressure regulating valve

With the rapid advancements in autonomous driving and intelligent braking technologies, there has been a corresponding evolution in the pneumatic braking systems of commercial vehicles. This evolution is pivotal for enabling the integration of more active safety strategies into Commercial Vehicle Electronic Controlled Pneumatic Braking Systems (ECPBS). This paper introduces an innovative ECPBS design for commercial vehicles, centered around an automatic pressure regulating valve. It delves into a comprehensive analysis of the working principles and braking control strategies, incorporating an integrated approach of hardware and software design, simulation modeling, and experimental validation. A sophisticated Hardware-in-the-Loop (HIL) validation system has been developed for the entire vehicle’s braking control strategy in the commercial vehicle ECPBS. Utilizing specific application scenarios, this system underwent HIL testing experiments to validate the ECPBS, based on the automatic pressure regulating valve. The results from these validation tests affirm that the ECPBS possesses both fundamental braking capabilities and the aptitude for implementing advanced braking control strategies. This study provides crucial technical support for the development and broader implementation of autonomous driving and intelligent braking technologies in commercial vehicles, particularly in the context of new system architectures.