Patent ID: 7204776
Filing Date: 2007-04-17
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S

Abstract:
1. A hybrid transmission, comprising: a two-degree of freedom differential unit constituted by a single pinion planetary gear set and a double pinion planetary gear set holding a carrier in common to the single planetary gear set and having five rotary members from among which, when revolution states of two rotary members are determined, those of the other rotary members are determined; an input end of the hybrid transmission from a prime mover coupled to a ring gear of the double pinion planetary gear set; an output end of the hybrid transmission to a drive system coupled to a ring gear of the single pinion planetary gear set; a first motor/generator coupled to a sun gear of the double pinion planetary gear set; a second motor/generator coupled to a sun gear of the single pinion planetary gear set; and a brake configured to brake the common carrier.