METHOD FOR MONITORING ROTORCRAFT PILOT CONTROL TRIM AND DETECTING A TRIM FAILURE

摘要

A rotorcraft according to the invention comprises a pilot control (413) having a sensor (215) that generates pilot control position data, a flight control that controls a flight characteristic of the rotorcraft, a trim system connected to the pilot control and configured to move the pilot control, and a flight control computer (FCC) (205) configured to receive the pilot control position data from the sensor.The FCC executes a first flight control process and generates, according to the first flight control commands, a trim signal indicating a target position for the pilot control and to send the trim signal to the trim system.The trim system attempts to move the pilot control to the target position to reflect a position of the flight control, and to monitor a working state of the trim system and execute a retrim process in response to determining that the trim system has failed.