The calculation of electric motor and Lithium battery capacity on Cikal Cakrawala ITB electric car

This research was done with Brushless DC motor and Lithium-Polymer battery as main propulsion and energy storage for Cikal Cakrawala ITB electric car. Energy calculation to go through the Sepang International Circuit, Malaysia, was used to determine the brushless DC motor and Lithium-Polymer battery rating. Laboratory test was conducted to cover constant load, constant speed, and constant torque characteristic of Brushless DC motor. Charge and discharge characteristic of Lithium-Polymer battery was logged by DL-NAFF data logger. Lap testing with similar condition like Sepang international circuit in ITB area was needed to know the Cikal Cakrawala ITB electric car performance. DL-NAFF data logger was used to count energy consumption of Cikal Cakrawala ITB electric car in testing lap. With this calculation of electric motor and battery capacity, hopefully Cikal Cakrawala ITB electric car could perform 100 km/kWh in energy consumption when join the Shell Eco Marathon Asia 2012 competition in Sepang International circuit, Malaysia, on 4-7th July, 2012.