USER INTERFACE ACTUATOR FOR A PILOT-BY-WIRE SYSTEM

摘要

A user interface actuator for a pilot-by-wire system comprises a rotary electric motor having an output shaft suitable to be connected to a rotating user interface, a first absolute angular sensor for detecting in direct drive the number of revolutions of the shaft and a second absolute angular sensor redundant with respect to the first absolute angular sensor.

主权项

1. A user interface actuator for a pilot-by-wire system comprising:
a rotary electric motor having an output shaft suitable to be connected to a rotating user interface; a first angular sensor for detecting in direct drive the number of revolutions of the output shaft; and a second angular sensor, which is redundant with respect to the first angular sensor, wherein the first angular sensor and second angular sensor are absolute angular sensors; by comprising a transmission having a non-unitary gear ratio and connected to the electric motor; in that the first angular sensor and the second angular sensor are connected to each other by the transmission and coupled according to the non-unitary gear ratio, the transmission being suitable to connect the electric motor to the rotating user interface in a rotational manner; in that the transmission comprises an endless flexible member; and an electronic control unit programmed to detect a deviation from the non-unitary gear ratio of first and second absolute angular sensor and generate a signal when the deviation is above a threshold.