Ichikawa, S., Takeuchi, H., Fukuda, S., Kinomura, S. et al., "Development of New Plug-In Hybrid System for Compact-Class Vehicle," SAE Int. J. Alt. Power. 6(1):95-102, 2017, doi:10.4271/2017-01-1163.
A next-generation plug-in hybrid system has been developed for the new Prius Prime. The objective of this development was to maximize the performance of the Toyota Hybrid System II (THS II) developed for the new fourth generation Prius HV, while achieving even better dynamic performance in electric vehicle (EV) mode. These objectives were accomplished by the adoption of new components and systems, as well as refinements to existing hybrid vehicle (HV) components. This paper describes the development of this new plug-in hybrid system.