Patent ID: 8353801
Filing Date: 2013-01-15
Classification: F16H

Abstract:
1. A multiple speed automatic transmission comprising, in combination, a first planetary gear assembly, a second planetary gear assembly, a third planetary gear assembly and a fourth planetary gear assembly, each of said planetary gear assemblies having three members, an input member connected to one of said members of said second planetary gear assembly, an output member connected to one of said members of said third planetary gear assembly, a first member for connecting said one of said members of said first planetary gear assembly with said one of said members of said second planetary gear assembly, a second member for connecting another of said members of said first planetary gear assembly with another of said members of said second planetary gear assembly, a third member for connecting another of said members of said third planetary gear assembly with one of said members of said fourth planetary gear assembly, a fourth member for connecting said one of said members of said third planetary gear assembly with another of said members of said fourth planetary gear assembly, a fifth member for connecting yet another of said members of said second planetary gear assembly with yet another of said members of said third planetary gear assembly, and a plurality of torque transmitting devices selectively engageable to connect: yet another of said members of said first planetary gear assembly to ground, said another of said members of said first planetary gear assembly and said another of said members of said second planetary gear assembly to ground, said yet another of said members of said second planetary gear assembly to ground, yet another of said members of said fourth planetary gear assembly to ground, said input shaft to said one of said members of said fourth planetary gear assembly and said input shaft to said yet another of said members of said fourth planetary gear assembly.