Patent ID: 7399246
Filing Date: 2008-07-15
Classification: B60K,F16H,Y02T

Abstract:
1. A hybrid powertrain including a hybrid transmission comprising: an internal combustion engine; a first electric motor/generator unit; a second electric motor/generator unit; a planetary gearset having five members rotating on substantially the same axis and capable of rotation at five different speeds, wherein the rotational speeds of two of said members are necessary and sufficient for determining the speeds of the other three of said members and wherein one of said members is connected with said internal combustion engine, a second of said members is connected with said first electric motor/generator unit, and a third member is connected with said second electric motor/generator unit; transmission output gearing means; and said second electric motor/generator unit being connectible with said transmission output gearing means through a first torque-transmitting mechanism, a fourth member of said planetary gearset being connectible with said transmission output gearing means through a second torque-transmitting mechanism, and a fifth member of said planetary gearset being connectible with said transmission output gearing means through a third torque-transmitting mechanism.