Battery monitoring and management system for battery-driven public transit using wireless communication

Battery-driven vehicle has prevailed recently. In the public transportation sector, prototype of battery-driven tram has been developed in Korea, Japan, and Europe. It is envisaged that battery-driven public transit will be adopted in many cities to make the city green and to suppress the emission of CO₂. Battery Life is restricted mainly by over-charge, discharge, and the number of rapid charge. Over-charge and discharge are prevented by the battery management system (BMS) in vehicle. Because rapid charge is preferred to reduce charge time, it makes dominant effect to battery life in real operation environment. In this paper, we propose battery monitoring and management system (BMMS) for battery-driven public transit. It enables the battery to be effectively managed by reducing the frequency of rapid charge, and the transit operation center to continuously monitor the state of charge of all the vehicles with the aid of information & communication technology.