Fuel consumption and emission reduction of a mild hybrid vehicle

This paper presents a control strategy for a mild hybrid vehicle equipped with integrated starter alternator (ISA). The ISA provides the torque augmentation and regenerative braking as well as the start/stop capability for the vehicle. continuously variable transmission (CVT) is utilized to achieve the full benefits of the mild hybrid drive train. The validity of the proposed CVT control unit, start/stop system, and the optimal torque distribution between the ISA and internal combustion engine (ICE) are verified through the simulations. Finally, the emissions and fuel consumption reduction advantages of the proposed vehicle controller for the mild hybrid vehicle with lead-acid battery are extracted from the simulation results.