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US 9,164,497 B2Granted
Reluctance motor system
AssigneeThe Boeing Company
InventorsDouglas C. Cameron, Christopher Pete Benson
Life of this patent
Estimating the term…
Abstract
A method and apparatus for controlling operation of an electric motor. A controller is configured to identify a position of a disc relative to a plate with coils physically associated with the plate. The controller is further configured to control a current sent to the coils based on the position of a disc. The disc is configured to move such that a closest point between the disc and the plate changes along a periphery of the disc.
Claims26
An apparatus comprising:
- a controller configured to identify a position of a disc relative to a plate with coils physically associated with the plate, and control a current sent to the coils based on the position of the disc, wherein the disc is configured to move such that a closest point between the disc and the plate changes along a periphery of the disc, wherein the controller comprises a normal vector calculator configured to identify a disc normal vector for the disc from inductance information and coil position information for the coils.
An electric motor system comprising:
- an electric motor having a plate with coils physically associated with the plate and a disc configured to move such that a closest point between the disc and the plate changes along a periphery of the disc;
- and
- a controller configured to identify a position of the disc relative to the plate based on inductance measured for the coils and control a current sent to the coils based on the position of the disc, wherein the controller comprises a normal vector calculator configured to identify a disc normal vector for the disc from inductance information and coil position information for the coils.
A method for controlling operation of an electric motor, the method comprising:
- identifying a position of a disc relative to a plate with coils physically associated with the plate, wherein the identifying step comprises identifying a first normal vector for the disc based on inductance measured for the coils;
- and
- controlling a current sent to the coils based on the position of the disc, wherein the disc is configured to move such that a closest point between the disc and the plate changes along a periphery of the disc.
A system comprising:
- a hydraulic motor system;
- a reluctance motor system, wherein the reluctance motor system operates as a booster for the hydraulic motor system;
- and
- a controller associated with the electric motor, the controller configured to identify a position of a disc relative to a plate with coils physically associated with the plate and control a current sent to the coils based on the position of the disc, wherein the controller comprises a normal vector calculator configured to identify a disc normal vector for the disc from inductance information and coil position information for the coils.
1 more element
An electric motor system comprising:
- a first controller associated with a first electric motor, the first controller configured to identify a position of a first disc relative to a first plate with first coils physically associated with the first plate and control a current sent to the first coils based on the position of the first disc, wherein the identifying step comprises identifying a first normal vector for the disc based on inductance measured for the coils;
- and
- a second controller associated with a second electric motor, the second controller configured to identify a position of a second disc relative to a second plate with second coils physically associated with the second plate and control a current sent to the second coils based on the position of the second disc, wherein the first controller and the second controller are configured to operate in parallel.
An electric motor system comprising:
- a controller configured to identify a position of a disc relative to a plate with coils physically associated with the plate and control a current sent to the coils based on the position of the disc, wherein the controller comprises a normal vector calculator configured to identify a disc normal vector for the disc from inductance information and coil position information for the coils;
- and
- an electric motor associated with the controller, wherein the controller is further configured to receive a commanded rotor arm position, identify a current rotor arm position, and generate a rate command for the disc.
Dependencies are inferred from the claim text.