Power and Torque Analysis in Electric Vehicle Prototype Design

Automotive developments led to increased demand for fuel. Vehicle need fossil fuels to move them, while the fossil energy in this world is decreasing over time because fossil energy cannot be renewed. This has triggered the development of the use of electrical energy in the transportation system as a substitute for fossil fuels whose energy source is from renewable energy such as biomass energy (such as methane), hydropower, geothermal power, wind energy, and solar energy. One method that can be done to reduce the use of fossil energy is by utilizing electrical energy as an energy source in cars. In this study, an electric car prototype was designed using a three-phase induction motor with 3 HP power as the main driving force. To find out the power consumption and torque produced, it is necessary to analyze the calculation of power and torque when loaded and without load. In this research, the electric car prototype uses load variants, 40 kg, 60 kg, and 100 kg. Where the maximum torque that can be generated by the motor when no load is 9.94 Nm and when it is loaded is a variation of the load of 100 kg of 11.80 N.m. Calculation of the maximum power that can be generated by the motor when no load is 1976.94 watts and when loaded is a variation of 100 kg of 1202.59 watts. The data from the calculation of torque is inversely proportional to power, where the greater the power, the smaller the torque produced.