Method for managing the energy range of an assisted pedal electrical bicycle

Abstract

A management method for the energy range of a rechargeable battery pack of an assisted pedal electrical bicycle () including an electrical machine controllable for supplying a torque according to a pedal assistance factor, said torque being summed to the one generated by a cyclist through the pedaling, the management method including the following steps: a) selecting a route to be traveled by the electrical bicycle () starting from an initial position; b) obtaining data representative of the altitude profile of the selected route and dividing the route in a plurality of segments each being characterized by a respective altitude parameter; c) calculating a value correlated to the maximum percentage of battery pack () discharge on the selected route as a function of the altitude profile and of a limit pedal assistance factor K_limit, preferably calculating a value for each segment representative of the percentage of battery pack () discharge on the segment as a function of a limit assistance factor K_limit associated to each segment based on the altitude parameter associated to the segment; d) verifying whether the battery pack () has a residual positive charge or not at N the end of the route; wherein, if following that step d) of verifying it is determined that the battery pack () does not have a residual positive charge at the end of the route, then the management method iteratively repeats the steps c) and d) modifying the limit assistance factor K_limit based on one or more adjustment curves each allowing to obtain a new limit assistance factor for each segment as a function of the segment slope.