Online Fault Protection Method and Its Implementation Based on Control Bus for Electromechanical Composite Transmission Bench Test System

At present, the faults of the electromechanical composite transmission bench test system are presented in a complex and diverse manner, and the fault handling is mostly manual; its safety performance is reduced, and it is easy to cause delay and secondary failure. This paper aims at the safety of the system, guarantees that the fault can be handled in the shortest time after the fault occurs, proposes an online fault protection method for the electromechanical composite drive system based on control bus, and applies the method to the test bench. The method is oriented to the fault diagnosis of the electromechanical composite transmission bench test system and can provide a dynamic real-time protection mechanism for the system, and when a system-level alarm or fault occurs during the system operation, the system performs the protection program according to the preset protection logic. In order to ensure system safety and fault coordination, it can provide an information-based means of “reliability prediction” for fault diagnosis and health management of an electromechanical composite transmission.