Patent ID: 7022038

Claim:
A compound-split electrically variable transmission comprising: a prime mover; a first electrical power unit; a second electrical power unit; a transmission output mechanism; a planetary gear arrangement comprising: a first planetary gearset having a first member, a second member, and a third member; a second planetary gearset having a first member, a second member, and a third member; a first selectively engageable torque-transmitting mechanism; and a second selectively engageable torque-transmitting mechanism; said prime mover being continuously connected with both said first member of said first and second planetary gearsets; said first electrical power unit being continuously connected with said second member of said first planetary gearset and to a member of a group consisting of said second member of said second planetary gearset and said second selectively engageable torque-transmitting mechanism; said second electrical power unit being continuously connected with said third member of said first planetary gearset and with said first selectively engageable torque-transmitting mechanism; said third member of said second planetary gearset being continuously connected with a member of a group consisting of said transmission output mechanism and said first selectively engageable torque-transmitting mechanism; and said first and second torque-transmitting mechanisms being selectively engageable to effect two continuously variable speed ranges between said prime mover and said transmission output mechanism.