Browse Publications Technical Papers 2011-01-1745

The Power Unit with Strong Hybrid System for Motorcycles 2011-01-1745

A strong hybrid system is one of the best solutions to reduce the exhaust of carbon dioxide from vehicles[1]. However it could be believed as being too big and complicated for a motorcycle. Yamaha has developed a unique power unit which consists of an engine, two motors, and a planetary gear drive train in a simple one-room construction with highly stiffened casing. The power unit has been installed onto a proto-type motorcycle called “HV-X”. The HV-X attains 40% or less exhaust of carbon dioxide with no degradation of drive performances, but better acceleration.


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