Design Of Dual Coil Redundancy Safety Scheme Of The Automatic Pressure Regulating Valve in the Electronically Controlled Pneumatic Brake Systems in Commercial Vehicles

In view of the fault types of the automatic pressure regulating valve in commercial vehicles,the redundancy safety requirements for key control components of automatic pressure regulating valves are combined with the structure and functions of automatic pressure regulating valves, and their failure types are analyzed and summarized,and then a redundancy safety scheme for dual coils of automatic pressure regulating valves is proposed.The simulation model of the control components of the automatic pressure regulating valve is established by using ANSYS MaxWell software,and the simulation analysis platform of the redundant safety scheme is built by co-simulation with AMESim software and Simulink software,and the feasibility of the redundant safety scheme is verified by building a redundant safety test system.Finally,the emergency braking effect of the dual-coil redundant safety scheme for the automatic pressure regulating valve is verified under multiple operating conditions by means of fault injection.The results show that the dual-coil redundancy safety scheme of the automatic pressure regulating valve is reasonably designed and feasible.