余度机电作动器(EMA)系统BIT设计分析

The BIT Design Analysis of an EMA System with a Redundance Structure

讨论了一种由稀土永磁无刷电机构成的具有余度结构的机电作动器（EMA）系统的BYF设计问题。首先分析了该系统的测试性，然后根据BIT功能要求提出了故障检测方法。

The bulit-in test (BIT) design problem about a electromechanical actuation (EMA) system with a redundance structure,which is based on a rare-earth permanent-magnet brushless motor is described. First testability of the EMA system is analyzed, then according to the reopirement off the BIT function, several fault detection methods are discussed.