Method of controlling a brushless DC motor
AssigneeMessier-Bugatti-Dowty
InventorsAnas Farid, Etienne Annee
Life of this patent
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Abstract
The invention relates to a method of powering at least one brushless DC electric motor having a plurality of phases for powering, the method including the steps of associating a static contactor with the motor for taking input voltage pulses and delivering polyphase voltage pulses to the motor in a manner that is servo-controlled to the angular position of the rotor of the motor, and for generating from a DC voltage source voltage pulses of frequency that is fixed and at a duty ratio that is controllable, thereby forming the input voltage pulses to the static contactor.
Claims4
An integrated electromechanical brake actuator comprising:
- a brushless DC electric motor having a rotor;
- a linearly-movable pusher mechanically connected to the motor to move in response to rotation of the motor;
- a static contactor for delivering a polyphase voltage to the motor by interrupting and sequencing input voltage pulses as a function of information relating to an angular position of the rotor of the motor;
- and
- an angle position sensor for sensing the angular position of the rotor and delivering angular position information.
Dependencies are inferred from the claim text.