Guest editorial: special section on advanced vehicle power propulsion systems

The papers in this special section focus on advanced vehicle power propulsion systems. Electrification f vehicles is one of the major trends in current research and development. In coming years, answers regarding more electric-based propulsion systems for a smooth and decided transition into more efficient and environmentally sensitive propulsion systems are required. Researches and developments should respond to these challenges by investigating more advanced energy storage, power propulsion and energy conversion systems in order to ensure better energy performance, reduced operating cost, and higher lifetime of the next generation of electric vehicles.