Dual redundant linear EMA with hard stop compliant driveline

摘要

An apparatus has a first motor for moving an actuator, a first brake for selectively braking the motor, a second brake that is engaged, the second brake dissipating torque spikes in the system, and a gear attaching the first motor to the actuator to cause the actuator to move and to the second brake whereby the torque spikes overcome stiction in the engaged brake so that the torque spike is dissipated in the engaged brake.

主权项

1. An electro-mechanical actuation system comprising;
a first motor and a second motor, wherein the first and second motor are controlled such that when said first motor is operating said second motor is not operating; a linear actuation component connected to said first motor via a gear system and connected to said second motor via said gear system;
a brake associated with the second motor and connected to the gear system via a brake gear; and wherein said brake is operable to dissipate a torque spike in excess of a corresponding maximum static torque rating when said brake is in an engaged position and said first motor is operating.