Driving assistance for energy management in electric vehicle

Efficient energy management in battery operated electric vehicle (EV) is important because of limited range caused by low energy density and inadequate energy storage capacity, insufficient charging stations, long charging time, etc. One of the ways to save energy without incurring any additional cost is to follow an optimal driving strategy by a driver because driving harshness consumes lots of energy. In the present work an optimal driving strategy is determined by solving an associated multi-objective optimization problem based on the route and current vehicle driving information. When performing a trip, driver is assisted by providing the optimal driving strategy to efficiently manage the stored battery energy. Use of optimal driving based energy management system not only substantially reduces the EV operating cost by reducing the energy consumption; it increases the operating life of the EV components and driving safety. Effectiveness of the proposed driving assistance system for energy management is presented by implementing it in a simple trip planning on highway driving cycle. After analyzing the results with varied route characteristics, it was found that adopting the proposed system is extremely essential for EV trip planning.