# US 10,308,107 B2 · Multi-mode hybrid powertrain > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,308,107 B2 - Document ID: US10308107B2 - Status: Granted - Kind: B2 - Application number: 15/789,308 - Filed: 2017-10-20 - Published: 2019-04-25 - Granted: 2019-06-04 - Earliest claimed: 2017-10-20 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Xiaowu Zhang; David Gon Oh; David Allen Janson; Mark John Jennings; Gregory Daniel Goleski - Web page: https://patentgrep.com/patent/US10308107B2 ## CPC - B60K 6/543: the transmission being a continuously variable transmission - B60K 6/365: with the gears having orbital motion - B60K 6/387: Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means - B60K 6/445: Differential gearing distribution type - B60K 6/547: the transmission being a stepped gearing - F16H 3/728: {with means to change ratio in the mechanical gearing} - B60K 2006/381: {characterized by driveline brakes} - B60Y 2200/92: Hybrid vehicles - B60Y 2400/42: Clutches or brakes - B60Y 2400/73: Planetary gearings - F16H 2200/0043: the gear ratios comprising four forward speeds - F16H 2200/201: with three sets of orbital gears - F16H 2200/2043: with five engaging means - Y02T 10/62: Hybrid vehicles - Y10S 903/911: with two or more gear sets - Y10S 903/914: Actuated, e.g. engaged or disengaged by electrical, hydraulic or mechanical means - Y10S 903/918: Continuously variable - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - F16H: GEARING - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A transmission includes first, second, and third planetary gear sets (PGS). A first electric machine is fixedly coupled to a sun gear of the first PGS. A second electric machine is fixedly coupled to a carrier of the first PGS. A brake is selectively holding a ring gear of the first PGS against rotation. First and second clutches selectively couple the first and second electric machines, respectively, to a portion of the second and third PGS, respectively. ## Claims ### Claim 1 A transmission for a hybrid vehicle, comprising: an input; an output; a first electric machine; a second electric machine a first planetary gear set having a first sun gear fixedly coupled to the first electric machine, a first carrier fixedly coupled to the second electric machine, and a first ring gear fixedly coupled to the input; a second planetary gear set having a second carrier, a second ring gear, and a second sun gear fixedly coupled to the first carrier; and a third planetary gear set having a third sun gear, a third carrier, and a third ring gear fixedly coupled to the output. ### Claim 2 (depends on 1) The transmission of claim 1, further comprising a brake configured to selectively hold the first ring gear against rotation. ### Claim 3 (depends on 1) The transmission of claim 1, further comprising a clutch configured to selectively couple the first electric machine to the second ring gear. ### Claim 4 (depends on 3) The transmission of claim 3, further comprising a brake configured to selectively hold the second ring gear against rotation. ### Claim 5 (depends on 1) The transmission of claim 1, wherein the second carrier is fixedly coupled to the third sun gear. ### Claim 6 (depends on 1) The transmission of claim 1, further comprising a clutch configured to selectively couple the first electric machine to second carrier. ### Claim 7 (depends on 6) The transmission of claim 6, further comprising a brake configured to selectively hold the second carrier against rotation. ### Claim 8 (depends on 1) The transmission of claim 1, wherein the second ring gear is fixedly coupled to the third sun gear. ### Claim 9 (depends on 1) The transmission of claim 1, further comprising a brake configured to selectively hold the third carrier against rotation. ### Claim 10 (depends on 1) The transmission of claim 1, further comprising a clutch configured to selectively couple the first carrier to the third carrier. ### Claim 11 A transmission comprising: an input; an output; first and second electric machines (EMs); a first planetary gear set having a ring gear fixedly coupled to the input, and a carrier fixedly coupled to the second EM; a second planetary gear set selectively coupled to the first EM and a sun gear fixedly coupled to the carrier; and a third planetary gear set having a ring gear fixedly coupled to the output. ### Claim 12 (depends on 11) The transmission of claim 11, further comprising a clutch configured to selectively couple the first EM to a ring gear of the second planetary gear set, and a brake configured to selectively hold the ring gear of the second planetary gear set against rotation. ### Claim 13 (depends on 12) The transmission of claim 12, wherein the second planetary gear set includes a carrier that is fixedly coupled to a sun gear of the third planetary gear set. ### Claim 14 (depends on 11) The transmission of claim 11, further comprising a clutch configured to selectively couple the first EM to a carrier of the second planetary gear set, and a brake configured to selectively hold the carrier of the second planetary gear set against rotation. ### Claim 15 (depends on 14) The transmission of claim 14, wherein the second planetary gear set includes a ring gear fixedly coupled to a sun gear of the third planetary gear set. ### Claim 16 (depends on 11) The transmission of claim 11, wherein the first planetary gear set includes a sun gear fixedly coupled to the first EM. ### Claim 17 (depends on 11) The transmission of claim 11, further comprising a brake configured to selectively hold the ring gear of the first planetary gear set against rotation. ### Claim 18 (depends on 11) The transmission of claim 11, further comprising a brake configured to selectively hold a carrier of the third planetary gear set against rotation. ### Claim 19 (depends on 11) The transmission of claim 11, further comprising a clutch configured to selectively couple the carrier of the first planetary gear set and the sun gear of the second planetary gear set to a carrier of the third planetary gear set. ### Claim 20 A transmission comprising: first, second, and third planetary gear sets (PGS); a first electric machine fixedly coupled to a sun gear of the first PGS; a second electric machine fixedly coupled to a carrier of the first PGS; a brake selectively holding a ring gear of the first PGS against rotation; and first and second clutches selectively coupling the first and second electric machines, respectively, to a portion of the second and third PGS, respectively.