A control system and method for a powertrain unit of a pedal assisted electrical bicycle, the powertrain unit including an electrical motor, a DC/AC converter to supply the motor from a battery wherein the following steps are taken: starting the electrical machine in order to rotate the rotor; estimating a back electromotive force produced by the electrical machine; estimating the angular position of the rotor with respect to the stator winding starting from the estimation of the back electromotive force; controlling the DC/AC converter based on said estimated angular position in order to make it supply the stator winding so that said electrical machine delivers a torque.
Control method of a powertrain unit of an assisted pedal bicycle and related assisted pedal bicycle
2020-07-07
Patent
Elektronische Ressource
Englisch
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