A Soft Starting Application with Fuzzy Type II for Hub Motors

This paper proposes an intelligent soft starting method for hub motors in applications to electric vehicles. This method proves a good linearity to rising current of hub motor at the starting point. So, the negative effects of the current peaks could be prevented. At the same time, a smooth rise has been ensured in the motor speed. Current of hub motor and motor speed have been used as feedback data to the microcontroller. The used microcontroller is an ARM based 32 bit microcontroller that is necessary to handle complex mathematical processes of fuzzy type II method. The proposed system has been tested in various load and speed conditions. Also, PID, fuzzy logic and fuzzy type II methods tested in the same conditions to show which one of them gives the best result. The results of the experiments have been taken to the Matlab environment to visualize and analyze them.

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