Abstract

The control system is the core of an electric bicycles. Properties of the controller are among the most important factors determining the performance of the Electric bicycles. In this paper, we design a new energy regenerating brake controller based on the driving and regenerating circuit topology for permanent brushless DC motor (BLDCM). A Fuzzy-Sliding Mode Control (Fuzzy-SMC) algorithm is applied to the inner loop (current loop) of the closed speed-current double loop system to improve the stability and reliability. Experiments and simulations show that the Fuzzy-Sliding Mode controller is superior to the traditional PID controller on many performance measurements including perturbation resistancesteady-state errorresponse speed and the extended driving distance per battery charge.

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