MOTOR ASSEMBLY ALLOWING OUTPUT IN MULTIPLE DEGREES OF FREEDOM

Title:

MOTOR ASSEMBLY ALLOWING OUTPUT IN MULTIPLE DEGREES OF FREEDOM

Document Type and Number:

WIPO Patent Application WO2003025394

Kind Code:

A3

Abstract:

A motor allowing multiple degrees of output freedom includes a stator having first and second orthogonally positioned stator coils 16, 18 on the interior surface of a curved surface 12. A rotor 36 fixed to an output shaft 22 and movably supported adjacent the stator includes a plurality of magnets 38, 40, 42, 44 disposed thereon and is movable along the interior surface. Upon energization of the first stator coil, a first magnetic field is established to force at least a first or second one of the magnets and the rotor in a direction in the first or second degree of freedom. A method of providing force feedback to the joystick handle includes providing a motor consistent with the invention for driving the joystick sensing a position of the joystick and energizing at least one of the coils 16, 18 to establish the feedback force against one or more of the magnets 38, 40, 42, 44.

More Like This:

WO/1997/016736	A TWO AXES LINEAR POSITION SENSOR
JP3814154	NAVIGATION SYSTEM

Inventors:

CORCORAN CHRISTOPHER J (US)

Application Number:

PCT/US2002/013859

Publication Date:

May 08, 2003

Filing Date:

May 03, 2002

Export Citation:

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Assignee:

ENGINEERING MATTERS INC (US)
CORCORAN CHRISTOPHER J (US)

International Classes:

G05G9/047; H02K41/02; (IPC1-7): G05G9/047

Foreign References:

US5402049A	1995-03-28
US6259174B1	2001-07-10
US5719451A	1998-02-17
US6153951A	2000-11-28
US4607197A	1986-08-19
US4745367A	1988-05-17
US4080724A	1978-03-28

Other References: