Honeywell International Inc.
Active human-machine user interface feedback system with spherical motor

Abstract:

An active human-machine interface feedback system includes a user interface, a pitch angle sensor, a roll angle sensor, a spherical motor, and a control circuit. The user interface adapted to receive user input and is configured, upon receipt of the user input, to move, about one or both of a pitch axis and a roll axis, to a user interface position. The pitch angle sensor is configured to sense the pitch angle component of the user interface position. The roll angle sensor is configured to sense the roll angle component of the user interface position. The spherical motor is coupled to the user interface and is symmetrically disposed about the origin. The control circuit determines a polar angle (.theta.) of the user interface relative to the origin, determine an azimuthal angle (.phi.) of the user interface relative to the origin, and supply current to the first, second, and third coils.