# US 9,039,564 B2 · Multi-speed transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,564 B2 - Document ID: US9039564B2 - Status: Granted - Kind: B2 - Application number: 13/918,100 - Filed: 2013-06-14 - Published: 2013-12-26 - Granted: 2015-05-26 - Earliest claimed: 2012-06-22 - Assignees: GM Global Technology Operations LLC - Applicants: GM Global Technology Operations LLC - Inventors: Edward W. Mellet; James M. Hart - Web page: https://patentgrep.com/patent/US9039564B2 ## CPC - F16H 3/62: Gearings having three or more central gears (F16H3/68 - F16H3/78 take precedence) - F16H 3/66: composed of a number of gear trains without drive passing from one train to another - F16H 2200/0069: the gear ratios comprising ten forward speeds - F16H 2200/2012: with four sets of orbital gears - F16H 2200/2046: with six engaging means - F16H: GEARING ## Abstract A transmission is provided having an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio. ## Claims ### Claim 1 A transmission comprising: an input member; an output member; first, second, third and fourth planetary gear sets each having first, second and third members, and wherein the input member is continuously connected for common rotation with the second member of the second planetary gear set and the output member is continuously connected for common rotation with the second member of the fourth planetary gear set; three interconnecting members continuously interconnecting at least one member of the first, second, third and fourth planetary gear sets with at least another member of the first, second, third and fourth planetary gear sets; and six torque transmitting mechanisms wherein one of the six torque transmitting mechanisms is selectively engageable to interconnect at least one of the first, second and third members with at least one other of the first, second, third members, three of the six torque transmitting mechanisms are each selectively engageable to interconnect at least one of the first, second and third members with the third member of the fourth planetary gear set, and two of the six torque transmitting mechanisms are each selectively engageable to interconnect at least one of the first, second and third members with a stationary member, and wherein the six torque transmitting mechanisms are selectively engageable to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member. ### Claim 2 (depends on 1) The transmission of claim 1 wherein the three interconnecting members further comprises a first interconnecting member continuously interconnecting the first member of the first planetary gear set with the first member of the second planetary gear set, a second interconnecting member continuously interconnecting the second member of the first planetary gear set with the second member of the third planetary gear set and the first member of the fourth planetary gear set and a third interconnecting member continuously interconnecting the third member of the second planetary gear set with the third member of the third planetary gear set. ### Claim 3 (depends on 2) The transmission of claim 2 wherein a first of the six torque transmitting mechanisms is selectively engageable to interconnect the second member of the second planetary gear set and the input member with the third member of the fourth planetary gear set. ### Claim 4 (depends on 3) The transmission of claim 3 wherein a second of the six torque transmitting mechanisms is selectively engageable to interconnect the third member of the second planetary gear set and the third member of the third planetary gear set with the third member of the fourth planetary gear set. ### Claim 5 (depends on 4) The transmission of claim 4 wherein a third of the six torque transmitting mechanisms is selectively engageable to interconnect the first member of the third planetary gear set with the second member of the third planetary gear set, the second member of the first planetary gear set and the first member of the fourth planetary gear set. ### Claim 6 (depends on 4) The transmission of claim 4 wherein a third of the six torque transmitting mechanisms is selectively engageable to interconnect the first member of the third planetary gear set with the third member of the second planetary gear set and the third member of the third planetary gear set. ### Claim 7 (depends on 4) The transmission of claim 4 wherein a third of the six torque transmitting mechanisms is selectively engageable to interconnect the third member of the second planetary gear set and the third member of the third planetary gear set with the second member of the third planetary gear set, the second member of the first planetary gear set and the first member of the fourth planetary gear set. ### Claim 8 (depends on 5) The transmission of claim 5 wherein a fourth of the six torque transmitting mechanisms is selectively engageable to interconnect the first member of the third planetary gear set with the third member of the fourth planetary gear set. ### Claim 9 (depends on 6) The transmission of claim 6 wherein a fifth of the six torque transmitting mechanisms is selectively engageable to interconnect the third member of the first planetary gear set with the stationary member. ### Claim 10 (depends on 9) The transmission of claim 9 wherein a sixth of the six torque transmitting mechanisms is selectively engageable to interconnect the first member of the first planetary gear set and the first member of the second planetary gear set with the stationary member. ### Claim 11 (depends on 1) The transmission of claim 1 wherein the first member of the first planetary gear set, the first member of the second planetary gear set, the third member of the third planetary gear set and the third member of the fourth planetary gear set are sun gears, the second members of the first, second, third and fourth planetary gear sets are carrier members and the third member of the first planetary gear set, the third member of the second planetary gear set, the first member of the third planetary gear set and the first member of the fourth planetary gear set are ring gears. ### Claim 12 A transmission comprising: an input member; an output member; first, second, third and fourth planetary gear sets each having first, second and third members; a first interconnecting member continuously interconnecting the first member of the first planetary gear set with the first member of the second planetary gear set; a second interconnecting member continuously interconnecting the second member of the first planetary gear set with the second member of the third planetary gear set and the first member of the fourth planetary gear set; a third interconnecting member continuously interconnecting the third member of the second planetary gear set with the third member of the third planetary gear set; and six torque transmitting mechanisms each selectively engageable to interconnect at least one of the first, second, and third members with at least one other of the first, second, third members and a stationary member, and wherein the six torque transmitting mechanisms are selectively engageable to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member. ### Claim 13 (depends on 12) The transmission of claim 12 wherein a first of the six torque transmitting mechanisms is selectively engageable to interconnect the second member of the second planetary gear set and the input member with the third member of the fourth planetary gear set. ### Claim 14 (depends on 13) The transmission of claim 13 wherein a second of the six torque transmitting mechanisms is selectively engageable to interconnect the third member of the second planetary gear set and the third member of the third planetary gear set with the third member of the fourth planetary gear set. ### Claim 15 (depends on 14) The transmission of claim 14 wherein a third of the six torque transmitting mechanisms is selectively engageable to interconnect the first member of the third planetary gear set with the second member of the third planetary gear set, the second member of the first planetary gear set and the first member of the fourth planetary gear set. ### Claim 16 (depends on 14) The transmission of claim 14 wherein a third of the six torque transmitting mechanisms is selectively engageable to interconnect the first member of the third planetary gear set with the third member of the second planetary gear set and the third member of the third planetary gear set. ### Claim 17 (depends on 14) The transmission of claim 14 wherein a third of the six torque transmitting mechanisms is selectively engageable to interconnect the third member of the second planetary gear set and the third member of the third planetary gear set with the second member of the third planetary gear set, the second member of the first planetary gear set and the first member of the fourth planetary gear set. ### Claim 18 (depends on 15) The transmission of claim 15 a fourth of the six torque transmitting mechanisms is selectively engageable to interconnect the first member of the third planetary gear set with the third member of the fourth planetary gear set. ### Claim 19 (depends on 18) The transmission of claim 18 wherein a fifth of the six torque transmitting mechanisms is selectively engageable to interconnect the third member of the first planetary gear set with the stationary member. ### Claim 20 (depends on 19) The transmission of claim 19 wherein a sixth of the six torque transmitting mechanisms is selectively engageable to interconnect the first member of the first planetary gear set and the first member of the second planetary gear set with the stationary member. ### Claim 21 (depends on 12) The transmission of claim 12 wherein the input member is continuously connected for common rotation with the second member of the second planetary gear set. ### Claim 22 (depends on 12) The transmission of claim 12 wherein the output member is continuously connected for common rotation with the second member of the fourth planetary gear set. ### Claim 23 (depends on 12) The transmission of claim 12 wherein the first member of the first planetary gear set, the first member of the second planetary gear set, the third member of the third planetary gear set and the third member of the fourth planetary gear set are sun gears, the second members of the first, second, third and fourth planetary gear sets are carrier members and the third member of the first planetary gear set, the third member of the second planetary gear set, the first member of the third planetary gear set and the first member of the fourth planetary gear set are ring gears. ### Claim 24 A transmission comprising: an input member; an output member; first, second, third and fourth planetary gear sets each having a sun gear, a carrier member and a ring gear, wherein the input member is continuously connected for common rotation with the carrier member of the second planetary gear set, and wherein the output member is continuously connected for common rotation with the carrier member of the fourth planetary gear set; a first interconnecting member continuously interconnecting the sun gear of the first planetary gear set with the sun gear of the second planetary gear set; a second interconnecting member continuously interconnecting the carrier member of the first planetary gear set with the carrier member of the third planetary gear set and the ring gear of the fourth planetary gear set; a third interconnecting member continuously interconnecting the ring gear of the second planetary gear set with the sun gear of the third planetary gear set; a first torque transmitting mechanism selectively engageable to interconnect the carrier member of the second planetary gear set and the input member with the sun gear of the fourth planetary gear set; a second torque transmitting mechanism selectively engageable to interconnect the ring gear of the second planetary gear set and the sun gear of the third planetary gear set with the sun gear of the fourth planetary gear set; a third torque transmitting mechanism selectively engageable to interconnect the ring gear of the third planetary gear set with the carrier member of the third planetary gear set, the carrier member of the first planetary gear set and the ring gear of the fourth planetary gear set; a fourth torque transmitting mechanism selectively engageable to interconnect the ring gear of the third planetary gear set with the sun gear of the fourth planetary gear set; a fifth torque transmitting mechanism selectively engageable to interconnect the ring gear of the first planetary gear set with the stationary member; and a sixth torque transmitting mechanism selectively engageable to interconnect the sun gear of the first planetary gear set and the sun gear of the second planetary gear set with the stationary member, and wherein the torque transmitting mechanisms are selectively engageable to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member.