Electric vehicle systems and methods for driving vehicles

An electric vehicle, comprising:

• a frame;
• at least one front wheel coupled to the frame;
• at least one rear wheel coupled to the frame;
• one or more pedals coupled to the frame and configured for a user's engagement with the electric vehicle via pedaling;
• a controller configured to output one or more driving signals according to a pedaling command signal associated with a back EMF (electromotive force) signal in response to a pedaling motion of the one or more pedals;
• a first power supply unit coupled to the controller, the first power supply unit comprising:
• a power generator coupled to the one or more pedals and configured to generate the back EMF signal;
• and
• a rectifying circuit coupled to the power generator and configured to receive the back EMF signal from the power generator and output the pedaling command signal associated with the back EMF signal to the controller, and further configured to rectify a charging current generated in response to the back EMF signal being induced by the pedaling motion and provide the rectified charging current to the controller for charging a first power storage device of the first power supply unit;
• a first motor coupled to one of the at least one front wheel or the at least one rear wheel and configured to drive the one of the at least one front wheel or the at least one rear wheel;
• and
• a first driver coupled with the first motor and configured to adjust the first driver's power output to the first motor in response to the one or more driving signals.