Electric motor clamping system
AssigneeMoog Inc.
InventorsMichael H. Shriver, John W. Stevens
Life of this patent
Estimating the term…
Abstract
An electric motor system having a power supply, an electric motor connected to the power supply, an object driven by the motor having a range of motion and a substantially neutral position within the range of motion, a power sensor configured to sense power from the power supply, a position sensor configured to sense position of the object in at least a portion of the range of motion, an energy storage, a controller connected to the power supply and the energy storage, wherein the controller is configured to brake the motor as a function of the position sensor, the neutral position and the power sensor.
Claims63
An electric motor system comprising:
- a power supply;
- an electric motor connected to said power supply;
- an object driven by said motor having a range of motion and a substantially neutral position within said range of motion;
- a power sensor configured to sense power from said power supply;
- a position sensor configured to sense position of said object in at least a portion of said range of motion;
- an energy storage;
- a controller connected to said power supply and said energy storage;
- said controller configured and arranged to brake said motor as a function of said position sensor, said neutral position, and said power sensor.
A method of driving an electric motor interface comprising the steps of:
- providing an external power supply input;
- providing a position sensor signal input;
- providing a switching network having switch gates;
- providing an electric motor interface for connecting to an electric motor;
- providing a controller;
- providing an energy storage interface;
- monitoring said external power supply input;
- and
- operating said switch gates to absorb power from said electric motor interface as a function of said position sensor input and said external power supply input.
A driver for an electric motor comprising:
- an external power supply input;
- a power sensor having an output and configured to monitor said external power supply input;
- a position sensor having an output;
- an AC to DC power rectifier;
- a switching network having switch gates;
- an electric motor interface for connecting to an electric motor;
- a control configured to monitor said power sensor output and said position sensor output and configured to operate said switch gates;
- a local energy storage interface for temporarily supplying power;
- wherein said control is configured to operate said switch gates such that a recovered power is drawn from said electric motor interface as a function of said power sensor output and said position sensor output.
Dependencies are inferred from the claim text.