Patent ID: 7235029
Filing Date: 2007-06-26
Classification: B60K,F16H,Y02T,Y10S

Abstract:
1. A two-mode compound split hybrid electro-mechanical transmission, comprising: first and second motor/generators; three planetary gear arrangements, each planetary gear arrangement utilizing first, second and third gear members; said first and second motor/generators being coaxially aligned with each other and with said three planetary gear arrangements; at least one of said gear members in said first or second planetary gear arrangement connected to said first motor/generator; at least one of said gear members in said third planetary gear arrangement being connected to said second motor/generator; a first torque-transmitting mechanism selectively connecting one of said gear members associated with each of said first, second and third planetary gear arrangements to each other and to an output member; a second torque-transmitting mechanism selectively connecting one of said gear members of said third planetary gear set with ground; a third torque-transmitting mechanism selectively connecting one of said gear members of said second planetary gear set with ground; a fourth torque-transmitting mechanism selectively connecting said first motor generator with one of said gear members, said fourth torque-transmitting mechanism being positioned radially inside said first motor/generator; a fifth torque-transmitting mechanism selectively connecting said second motor generator with one of said gear members, said fifth torque-transmitting mechanism being positioned radially inside said second motor/generator; a first interconnecting member continuously connecting one of said members of said first planetary gear set with one of said members of said second planetary gear set; and a second interconnecting member continuously connecting another one of said members of said first planetary gear set with another one of said members of said second planetary gear set.