HYBRID TRANSMISSION WITH THREE PLANETARY GEAR SETS AND THREE INTERCONNECTING MEMBERS AND WITH SYNCHRONOUS SHIFT BETWEEN SERIES AND COMPOUND-SPLIT OPERATING MODES

摘要

A hybrid transmission is provided that has both a hybrid series operating mode and a compound-split operating mode. The transmission includes an input member operatively connected with the engine, an output member, and a plurality of selectively engageable torque-transmitting mechanisms. A gearing arrangement and first and second motor/generators operatively connected with the gearing arrangement are also provided. The gearing arrangement includes a first, a second, and a third planetary gear set, each having a first, a second, and a third member. A pair of interconnecting members connect two respective ones of the members of one of the planetary gear sets for common rotation with two respective ones of the members of another of the planetary gear sets. Another interconnecting member connects a third of the members of the one of the planetary gear sets for common rotation with one of the members of still another of the planetary gear sets.