| Abstract | Toyota has been evolving a hybrid system since introduction of the first mass-production hybrid vehicle in 1997 as a countermeasure of the automobile's issues, CO2 emission, energy security, and urban air pollution.
This paper describes a newly developed hybrid system design and its performance. This system was developed to improve fuel consumption, especially for better real world fuel consumption as a main purpose. At the same time, the hybrid system achieved improved power performance, weight reduction and downsizing. |