Fault-tolerant electro-mechanical actuator having a torque sensing control system

摘要

An electromechanical actuator (EMA) (10) is provided. The EMA includes a threaded output ram (12) connectable to a mechanical component and at least one motor module (24,30,34) engageable with the output ram (12) for controllably translating the output ram along a linear axis of the output ram. The actuator (10) further includes a torque sensing adaptive control (TSAC) system (36) for monitoring torque within the motor module. The TSAC (36) generates a disengagement command signal when the TSAC system determines torque within the motor module (24,30,34) is outside an allowable motor module torque range. The disengagement command signal initiates disengagement of the motor module (24, 30, 34) from the output ram (12).