# US 11,994,195 B2 · Transmission, powertrain, and vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,994,195 B2 - Document ID: US11994195B2 - Status: Granted - Kind: B2 - Application number: 17/606,239 - Filed: 2020-03-04 - Published: 2022-06-30 - Granted: 2024-05-28 - Earliest claimed: 2019-04-23 - Assignees: ZF Friedrichshafen AG - Applicants: ZF Friedrichshafen AG - Inventors: Stefan Beck; Matthias Reisch; Eckhardt Lübke; Timo Wehlen - Web page: https://patentgrep.com/patent/US11994195B2 ## CPC - F16H 37/082: {and additional planetary reduction gears} - F16H 48/10: with orbital spur gears - B60K 1/00: Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00) - B60K 5/02: with the engine main axis, e.g. crankshaft axis, substantially in or parallel to the longitudinal centre line of the vehicle - B60K 17/165: {provided between independent half axles (B60K17/18, B60K17/20 take precedence)} - B60K 17/356: having fluid or electric motor, for driving one or more wheels - B60K 2001/001: {one motor mounted on a propulsion axle for rotating right and left wheels of this axle} - B60Y 2400/73: Planetary gearings - F16H 3/54: one of the central gears being internally toothed and the other externally toothed - F16H 2048/104: {characterised by two ring gears} - F16H 2048/106: {characterised by two sun gears} - F16H 2200/0034: the gear ratios comprising two forward speeds - F16H 2200/2005: with one sets of orbital gears - F16H 2200/201: with three sets of orbital gears - F16H 2200/2035: with two engaging means - F16H 2200/2094: using positive clutches, e.g. dog clutches - F16H: GEARING - 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 - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract A transmission has an input shaft, first and second output shafts, and first and second planetary gear-set, connected together. The first output shaft is rotationally fixed to a first planetary gear-set second element, the second output shaft is rotationally fixed to a second planetary gear-set third element, a first planetary gear-set third element is rotationally fixed to a second planetary gear-set first element via a shaft, and a second planetary gear-set second element is secured to a rotationally fixed component. A first shift element blocks the third planetary gear-set by connecting third planetary gear-set elements in a rotationally fixed manner, a second shift element secures a third planetary gear-set first element to the rotationally fixed component, a third planetary gear-set second element is rotationally fixed to the first planetary gear-set first element via an intermediate shaft, and a third planetary gear-set third element is rotationally fixed to the input shaft. ## Claims ### Claim 1 A transmission, comprising an input shaft, a first output shaft, a second output shaft, a first planetary gear set and a second planetary gear set connected to the first planetary gear set, wherein the first and second planetary gear sets-each comprise a plurality of elements, wherein the first output shaft is connected to a second element of the first planetary gear set in a rotationally fixed manner, the second output shaft is connected to a third element of the second planetary gear set-in a rotationally fixed manner, a third element of the first planetary gear set is connected to a first element of the second planetary gear set via a shaft, and a second element of the second planetary gear set is fixed on a rotationally fixed component, the transmission further comprising a third planetary gear set comprising three elements and two shift elements, wherein a first shift element is designed to block the third planetary gear set by rotationally fixed connection of two of its elements, a second shift element is designed to fix a first element of the third planetary gear set on the rotationally fixed component, a second element of the third planetary gear set is connected to a first element of the first planetary gear set in a rotationally fixed manner via an intermediate shaft, a third element of the third planetary gear set is connected to the input shaft in a rotationally fixed manner; and wherein the third planetary gear set is a minus planetary gear set, wherein the first element of the third planetary gear set is a sun gear, the second element of the third planetary gear set is a planet carrier, and the third element of the third planetary gear set is a ring gear. ### Claim 2 (depends on 1) The transmission as claimed in claim 1, wherein the first shift element is a clutch. ### Claim 3 (depends on 1) The transmission as claimed in claim 1, wherein the second shift element is a brake. ### Claim 4 (depends on 1) The transmission as claimed in claim 1, wherein the first shift element is designed to connect the first element to the third element of the third planetary gear set. ### Claim 5 (depends on 1) The transmission as claimed in claim 1, wherein the first shift element is designed to connect the first element to the second element of the third planetary gear set. ### Claim 6 (depends on 1) The transmission as claimed in claim 1, wherein the first shift element is designed to connect the second element to the third element of the third planetary gear set. ### Claim 7 (depends on 1) The transmission as claimed in claim 1, wherein at least one of the shift elements is configured as a power shift element. ### Claim 8 (depends on 1) The transmission as claimed in claim 1, wherein at least one of the shift elements is configured as a positively locking element. ### Claim 9 (depends on 1) The transmission as claimed in claim 1, wherein one of the two shift elements is configured as a power shift element and the other of the two shift elements is configured as a positively locking element. ### Claim 10 (depends on 1) The transmission as claimed in claim 1, wherein the two shift elements are configured as a double shift element. ### Claim 11 (depends on 1) The transmission as claimed in claim 1, wherein the first output shaft is guided through the third planetary gear set. ### Claim 12 (depends on 1) The transmission as claimed in claim 1, wherein the shift elements are arranged radially over one another. ### Claim 13 (depends on 1) The transmission as claimed in claim 1, wherein the number of planets of the second planetary gear set is greater than the number of planets of the first planetary gear set. ### Claim 14 (depends on 1) The transmission as claimed in claim 1, wherein toothings of the two interconnected elements of the first and second planetary gear set are formed on the same component. ### Claim 15 (depends on 1) The transmission as claimed in claim 1, wherein a pitch of the toothing on the third element of the first planetary gear set and on the first element- of the second planetary gear set is identical. ### Claim 16 (depends on 1) The transmission as claimed in claim 1, wherein a stationary transmission ratio of the second planetary gear set is calculated at least approximately from a reciprocal of the stationary transmission ratio of the first planetary gear set minus 1, i.e. i02=1/i01−1. ### Claim 17 (depends on 16) The transmission as claimed in claim 16, wherein an amount of the stationary ratio of the third planetary gear set is less than the amount of the stationary ratio of the first planetary gear set. ### Claim 18 (depends on 1) The transmission as claimed in claim 1, wherein the intermediate shaft is guided through the first element of the third planetary gear set. ### Claim 19 (depends on 1) The transmission as claimed in claim 1, wherein the intermediate shaft is at least partially guided radially between the third planetary gear set-and the first output shaft. ### Claim 20 (depends on 1) The transmission as claimed in claim 1, wherein a connecting element connecting the first element of the third planetary gear set and the second shift element is at least partially arranged axially between the first planetary gear set and the third planetary gear set. ### Claim 21 (depends on 1) The transmission as claimed in claim 1, wherein the toothing diameter of the first element of the third planetary gear set is greater than the toothing diameter of the first element of the first planetary gear set. ### Claim 22 A transmission, comprising an input shaft, a first output shaft, a second output shaft, a first planetary gear set and a second planetary gear set connected to the first planetary gear set, wherein the first and second planetary gear sets—each comprise a plurality of elements, wherein the first output shaft is connected to a second element of the first planetary gear set in a rotationally fixed manner, the second output shaft is connected to a third element of the second planetary gear set-in a rotationally fixed manner, a third element of the first planetary gear set is connected to a first element of the second planetary gear set via a shaft, and a second element of the second planetary gear set is fixed on a rotationally fixed component, the transmission further comprising a third planetary gear set comprising three elements and two shift elements, wherein a first shift element is designed to block the third planetary gear set by rotationally fixed connection of two of its elements, a second shift element is designed to fix a first element of the third planetary gear set on the rotationally fixed component, a second element of the third planetary gear set is connected to a first element of the first planetary gear set in a rotationally fixed manner via an intermediate shaft, a third element of the third planetary gear set is connected to the input shaft in a rotationally fixed manner; and wherein the third planetary gear set is a minus planetary gear set, wherein the first element of the third planetary gear set is a ring gear, the second element of the third planetary gear set is a planet carrier, and the third element of the third planetary gear set is a sun gear.