Motorola Corporation

Moog Gmbh

Moog Wolverhampton Limited

Robert P Gerbetz

Richard Fosdick

Paul D Whitehouse

Graham K Towers

Neil A Venables

An electric motor assembly comprising a rotor, a stator, first and second electromagnetic winding in first and second separate slot sets of a plurality of stator slots operatively configured to be selectively energized to exert a torque on the rotor, the first windings comprising first and second coils in first and second pairs of slots in the first slot set, the first coil comprising a first number of turns and the second coil comprising a second number of turns that is greater than the first number of turns, the second windings comprising third and fourth coils in third and fourth pairs of slots in the second slot set, the third coil comprising a third number of turns and the fourth coil comprising a fourth number of turns that is greater than the third number of turns.

Fault tolerant redundant electric motor

An aircraft moveable element monitoring system is provided. An exemplary aircraft moveable element monitoring system includes a signal generator (), a signal transmitter coil () electrically connected to the signal generator (); a signal detector (); a signal receiver coil () electrically connected to the signal detector (); and one or more moveable element signal transmission units (-). An exemplary moveable element signal transmission unit () includes a first signal transmission unit coil and a second signal transmission unit coil, the first signal transmission unit coil being electrically connected to the second signal transmission unit coil. Each moveable element signal transmission unit is configured to be installed on a respective moveable element of an aircraft. The signal transmitter coil, the one or more moveable element signal transmission units and the signal receiver coil form an inductively coupled transmission line. The signal generator is configured to provide an electrical signal to the signal transmitter coil and the signal detector is configured to detect the electrical signal via the signal receiver coil. The signal detector is further configured to determine a condition of the one or more moveable elements by comparing the detected electrical signal to a predetermined signal characteristic.

Aircraft control surface element monitoring system

A claw-pole motor having a rotor assembly orientated about a longitudinal axis, a stator assembly having a first plurality of stator teeth and a second plurality of stator teeth orientated radially about the longitudinal axis and extending axially in opposite directions to each other and alternating about the longitudinal axis, a first gap in the stator assembly orientated about the longitudinal axis, a second gap orientated about the longitudinal axis and extending both axially and radially between the first plurality of stator teeth and the second plurality of stator teeth, first electromagnetic windings disposed in the first gap and second electromagnetic windings disposed in the second gap, the first and second windings configured to be selectively energized to exert a torque on the rotor assembly.

Claw pole motor with a ring coil and a meandering coil

A method for closing a motor-driven window is disclosed, including the steps of raising the window after the window has been stopped; evaluating the torque after initially raising the window; and stopping the window if the pinch force exceeds a predetermined limit. Torque is preferably estimated according to the present invention using the sum of dynamic torque, electromagnetic torque, and core loss compensation. Consistent values of torque are estimated during window starts and stops, which is beneficial in providing accurate pinch force measurements and avoiding false pinch indications.

Method for closing a motor driven window

A method of compensating for abrupt load changes in an anti-pinch window control system ( ) includes measuring an instantaneous torque value ( ) of a window lift mechanism ( ) and calculating a pinch factor ( ) based on the instantaneous torque value ( ) and a stored torque value ( ). A pinch threshold ( ) is then adjusted based on the pinch factor ( ) to define a modified pinch threshold ( ). Stored torque value ( ) includes stored torque values from sections of travel ( ) of window ( ), stored downstroke torque values ( ) and stored upstroke torque values ( ).

Method of compensating for abrupt load changes in an anti-pinch window control system

A method ( ) for closing a motor-driven window comprises the steps of determining ( ) a window gap, and raising ( ) the window at a speed dependent upon the window gap. The speed is selected based on the window gap and is reduced as the window gap approaches a pinch region such that the pinch-force is limited to a safe value. A vehicle power-window system ( ) comprises a window assembly ( ), a battery ( ), an electric motor ( ), a mechanical assembly ( ), and a control circuit ( ). Control circuit ( ) monitors the window gap and supplies drive voltage to the electric motor in dependence on the window gap, so as to control the speed of the window in accordance with the disclosed method ( ). Preferably, control circuit ( ) includes a regulator circuit ( ) and a processor ( ), and the drive voltage is substantially unaffected by at least some changes in the battery voltage.

Growing community of inventors

Waukegan, IL, United States of America

Robert P Gerbetz