Control of a brushless motor
AssigneeDyson Technology Limited
InventorsAndrew Charlton CLOTHIER, Stephen Greetham, Tuncay Celik
Life of this patent
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Abstract
A method of controlling a brushless motor that includes exciting a winding of the motor in advance of predetermined rotor positions by an advance period. The length of the advance period is defined by a waveform that varies periodically with time. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
Claims23
A method of controlling a brushless motor, the method comprising exciting a winding of the motor in advance of predetermined rotor positions by an advance period, the advance period being defined by a waveform that varies periodically with time.
Dependencies are inferred from the claim text.