Simulation Study of FPGA Based Energy Efficient BLDC Hub Motor Driven Fuzzy Controlled Foldable E-Bike

This paper presents the simulation study for designing a foldable electric bicycle using hub motor. In order to reduce the air pollution, traffic congestion and also to reduce drudgery of conventional bicycle users, the aim of this paper is to develop a cost efficient electric bicycle powered by Brushless DC hub motor which can be easily installed on the bicycle wheel. Nowadays Brushless DC motors find wide application in industries such as automation, traction, appliances, aerospace, instrumentation etc because of high efficiency, high torque, high speed and less maintenance. BLDC motors are non linear in nature and are greatly affected by non-linearities like load disturbances. A comparative study on the speed response of BLDC motor using PI and fuzzy controller is done to ascertain the suitability of speed controller. Regenerative method of braking of an electric bicycle helps in charging the battery using the power that is wasted during braking and thus helps in efficient utilization of battery power. Simulation is done using MATLAB/SIMULINK. Since FPGA has the ability to operate faster than the microprocessor chip, and the hardware is programmable according to the user applications, the whole system is planned to implement using FPGA to get better performance and efficiency.