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Epicyclic Power Split Transmissions for Hybrid Electric Vehicles: Fuel Consumption, Vehicle Performance and Driving Aggressiveness

As part of extensive studies to investigate the impact of continuously variable transmission (CVT) that can be adapted for hybrid and electric vehicles, this paper focused on the improvement of fuel consumption, vehicle performance, and driving aggressiveness for hybrid electric vehicles. A local company, AVID Vehicles Ltd have demonstrated the potential of this work in the conversion of a Nissan Note supplied by Nissan Motors UK Ltd into an electric powered car. An electric motor has been applied to the Note’s existing transmission, the efficiencies in each gear measured, and gear ratios established to achieve maximum efficiency from the driveline. This, and related, work on hybrid vehicles has gained international recognition and has been used as the basis for further developments, including novel gearbox control systems for electric vehicles.