Comparative fuel economy, cost and emissions analysis of a novel mild hybrid and conventional vehicles

Mohamed Awadallah, Peter Tawadros, Paul Walker, Nong Zhang
2017 Proceedings of the Institution of mechanical engineers. Part D, journal of automobile engineering  
Mild hybrid vehicles have been explored as a potential pathway to reduce vehicle emissions cost-effectively. The use of manual transmissions to develop novel hybrid vehicles provides an alternate route to producing low cost electrified powertrains. In this paper, a comparative analysis examining a conventional vehicle and a Mild HEV is presented. The analysis considers fuel economy, capital and ongoing costs, and environmental emissions, and includes developmental analysis and simulation using
more » ... athematical models. Vehicle emissions (nitrogen oxides, carbon monoxide and hydrocarbons) and fuel economy are computed, analysed, and compared using a number of alternative driving cycles and their weighted combination. Different driver styles are also evaluated. Studying the relationship between the fuel economy and driveability, where driveability is addressed using fueleconomical gear shift strategies. Our simulation suggests the hybrid concept presented can deliver fuel economy gains of between 5 and 10 percent, as compared to the conventional powertrain.
doi:10.1177/0954407017736116 fatcat:iett6mnrzzhn3cu6sf6fbq3vsm