A new-generation hybrid electric vehicle and its supporting power semiconductor devices

Basic Operations of THS ll A newgeneration Toyota Hybrid System called THS 11 has been developed for a passenger car, the Prius. THS I1 is based on the concept of Wybrid Synergy Drive." It has achieved high levels of compatibility Ween envionmental performance and power. It has adopted a variable-voltage system in which a boost converter raises the voltage of a battery to higher voltages in a con!mlled manner. The motor power has increased to 1.5-times higher output This paper describes the basic operations of THS 11, its power eleckonics systems and components, and its suppxting paver semimductor devim.