Mr.Chokdee Patna Study of Electrical Energy Consumption of Brushless DC motors modified electric bicycle batteries -

Abstract

            The research investigates the electrical energy consumption of a brushless DC motor in    a modified electric bicycle. The objectives are: 1) to convert a conventional bicycle to be powered by a brushless DC motor, 2) to study the energy consumption rate of the motor at various speeds, and 3) to reduce the cost of purchasing an electric bicycle. The design includes the installation of electrical components and measuring instruments on the electric bicycle. Experiments were conducted with loads of 40, 30, and 20 kilograms at speeds of 10, 15, and 20 kilometres per hour. Two types of tests were performed: measuring the electric current used and determining the motor's power consumption.

          The experimental results showed that the motor consumed the highest current at a load of 40 kilograms (1.44 Ampere), followed by 30 kilograms (1.38 Ampere) and 20 kilograms (1.22 Ampere). Regarding power consumption, the motor used the highest power at a load of 40 kilograms (29.37 Watt), followed by 30 kilograms (28.15 Watt) and 20 kilograms (24.88 Watt).