Direct drive controller with haptic feedback

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7394173
APP PUB NO 20040027332A1
SERIAL NO

10635318

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A reliable and cost-efficient direct drive force feedback motor is suitable for joystick applications, allowing multiple degrees of output freedom, requiring no coil commutation, and permitting compact packaging. A multiple degree-of-freedom motor consistent with the invention comprises an output shaft, a stator, and a rotor. The stator comprises first and second lamination stacks, each lamination stack having an interior curved surface and a coil wound thereon, the lamination stacks being disposed adjacent the output shaft. The rotor is fixed to the output shaft and movably supported adjacent the stator with an air gap disposed between the rotor and the stator, the rotor including at least one magnet disposed thereon and being movable along the interior curved surface of the lamination stacks in directions defining at least first and second degrees of freedom. Energization of the coil of the first lamination stack establishes a first magnetic field to urge the output shaft to rotate in a first plane, and energization of the coil of the second lamination stack establishes a second magnetic field to urge the output shaft to rotate in a second plane substantially orthogonal to the first plane.

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Patent Owner(s)

Patent OwnerAddress
ROCKWELL COLLINS INC400 COLLINS ROAD NE MAIL STOP 124-323 CEDAR RAPIDS IA 52498

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cope, David Medfield, MA 14 65
Tischler, Neil Acton, MA 3 13
Wright, Andrew Boston, MA 142 847

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