Hamilton Sundstrand Corporation

Adam Crandall

Michael C Harke

Darrell E Ankney

Victor Barger

Christian Miller

Erik Harrington

Adam M Finney

Timothy Michael Mayer

Yuniya S Bishop

Eugene W Dolfi

Artemio Pérez

A method for braking a motor in a high lift system of an aircraft, the high lift system comprising a central power drive unit for moving high lift surfaces arranged at a wing through providing rotational power by means of a transmission shaft to a plurality of drive stations operably coupled with the high lift surfaces; which power drive unit is operatively coupled to a controller and comprises at least one electric motor coupled therewith. The method includes determining a braking requirement for the at least one electric motor, measuring at least one of a current command to the motor and a current speed and direction of the at least one electric motor, based on the braking requirement, applying a braking command to the at least one electric motor, and reducing the braking command as the at least one electric motor comes to rest.

Flight control system regenerative braking

A method for synchronizing input sampling to desired phase angles of sinusoidal signals including determining a delay time period for converging a next sample point to a next desired phase angle based on a phase error value.

Method for synchronizing sampling to sinusoidal inputs

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Winnebago, IL, United States of America

Adam Crandall