Patent ID: 8643320

Claim:
Control system for electric motor applied to cyclical loads, the control system comprising: an electric motor ( 10 ); at least an electronic control unit ( 20 ); at least an electronic power unit ( 30 ); the electric motor ( 10 ) being electrically driven by the electronic power unit ( 30 ); an electronic power unit ( 30 ) being electrically commanded by the electronic control unit ( 20 ), the control system further comprising an average speed controller implemented by the electronic control unit ( 20 ), the average speed controller being arranged to monitor an instantaneous speed (V i ) of the electric motor ( 10 ) and provide an average speed value RPM average of the motor ( 10 ), the electronic control unit ( 20 ) being arranged to calculate an average voltage (V m ) based on the average speed obtained, the electronic power unit ( 30 ) being arranged to electrically drive the electric motor ( 10 ) by an instantaneous voltage value (V ins ), this instantaneous voltage value (V ins ) being calculated by multiplying the average voltage (V m ) by the result of the division between the instantaneous speed (V i ) and the average speed RPM average .