Patent ID: 6090005
Filing Date: 2000-07-18
Classification: B60K,F16H,Y02T

Abstract:
A two-mode, compound-split, hybrid transmission comprising:an input member for receiving power from a prime mover power source;an output member for delivering power from the transmission;first, second, third and fourth compounded planetary gear sub sets;first and second supplemental power receiving/delivery units continuously connected to said compounded planetary gear sub sets;at least one component of said third and fourth planetary ear sub sets continuously connected to said output member;three torque transfer devices directly connected to at least one component of each of said four planetary gear sub sets;two of said three torque transfer devices selectively ground selected members of said third and fourth compounded planetary gear sub sets;the remaining one torque transfer device of said three torque transfer devices selectively connecting selected members of said first and second compounded planetary gear sub sets to said output member;one of said three torque transfer devices being solely engaged to effect a first mode of forward operation by said transmission;another of said torque transfer devices being solely engaged to effect a second mode of forward operation by said transmission; and,the third of said three torque transfer devices being solely engaged virtually to replicate the forward operation but in a reverse direction.