# US 10,865,865 B2 · Powertrain for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,865 B2 - Document ID: US10865865B2 - Status: Granted - Kind: B2 - Application number: 16/436,042 - Filed: 2019-06-10 - Published: 2020-08-20 - Granted: 2020-12-15 - Earliest claimed: 2019-02-15 - Assignees: Hyundai Motor Company; Kia Motors Corporation - Applicants: Hyundai Motor Company; Kia Motors Corporation - Inventors: Min Ho Chae; Yong Uk Shin; Soon Ki Eo; Sun Sung Kwon; Chon Ok Kim - Web page: https://patentgrep.com/patent/US10865865B2 ## CPC - F16D 21/06: at least two driving shafts or two driven shafts being concentric - F16H 48/24: using positive clutches or brakes - F16H 3/089: all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved - F16H 37/0813: {with only one input shaft} - F16H 48/38: Constructional details (the outer casing comprising the differential and supporting input and output shafts F16H57/037) - F16D 11/10: with clutching members movable only axially - F16D 13/04: with means for actuating or keeping engaged by a force derived at least partially from one of the shafts to be connected (automatic clutches F16D43/00) - F16D 13/38: with flat clutching surfaces, e.g. discs - F16D 13/76: specially adapted to incorporate with other transmission parts, i.e. at least one of the clutch parts also having another function, e.g. being the disc of a pulley - F16H 48/10: with orbital spur gears - F16H 48/22: using friction clutches or brakes - F16H 2048/106: {characterised by two sun gears} - F16H 2200/0034: the gear ratios comprising two forward speeds - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - F16H: GEARING ## Abstract A powertrain may include drive gears provided in an input shaft; an output shaft configured such that a differential is connected thereto; a first driven gear and a second driven gear rotatably provided in the output shaft to be engaged with the drive gears to form respective gear stages; a first clutch and a second clutch; two driveshafts provided to output power in opposed directions from the differential; and a third clutch configured to change a connection relationship among a selected driveshaft of the two driveshafts, the second driven gear, and the output shaft by sliding along an axial direction of the input shaft while being connected to the output shaft via the second clutch. ## Claims ### Claim 1 A powertrain apparatus for a vehicle, the powertrain apparatus comprising: an input shaft receiving power; first and second drive gears provided on the input shaft; an output shaft mounted parallel to the input shaft, and configured such that a differential is connected thereto; a first driven gear and a second driven gear rotatably provided in the output shaft to be engaged with the first and second drive gears, respectively, to form respective gear stages; a first clutch configured to selectively connect the first driven gear to the output shaft; a second clutch configured to selectively connect the second driven gear to the output shaft; first and second driveshafts engaged to the differential and provided to output power in opposed directions from the differential; and a third clutch configured to change a connection relationship among a selected driveshaft of the first and second driveshafts, the second driven gear, and the output shaft by sliding along an axial direction of the input shaft while being connected to the output shaft via the second clutch, wherein the third clutch includes: a main sleeve splined to a hub connected to the output shaft via the second clutch; and a sub-sleeve provided to be rotatable with respect to the main sleeve while sliding in the axial direction is constrained. ### Claim 2 (depends on 1) The powertrain apparatus of claim 1, wherein the main sleeve is provided with a first spline configured to be selectively engageable with the selected driveshaft, and a second spline configured to be selectively engageable with the second driven gear, and wherein the sub-sleeve is provided with a third spline configured to be selectively engageable with the output shaft, and a fourth spline configured to be selectively engageable with the second driven gear. ### Claim 3 (depends on 2) The powertrain apparatus of claim 2, wherein the main sleeve is configured to be slidable to five discrete positions sequentially provided along the axial direction, and wherein the five positions are positions of 1lsd, 1, N, 2, and 2lsd in order, and wherein when the main sleeve is located at the 1lsd position, the first spline is engaged with the selected driveshaft; when the main sleeve is located at the 1 position, the first spline is not engaged with the selected driveshaft, the second spline is not engaged with the second driven gear, the third spline is not engaged with the output shaft, and the fourth spline is not engaged with the second driven gear; when the main sleeve is located at the N position, the second spline is engaged with the second driven gear; when the main sleeve is located at the 2 position, the third spline is engaged with the output shaft, and the fourth spline is engaged with the second driven gear, to directly connect the second driven gear to the output shaft; and when the main sleeve is located at the 2lsd position, the third spline is engaged with the output shaft, the fourth spline is engaged with the second driven gear, and the first spline is engaged with the selected driveshaft. ### Claim 4 (depends on 3) The powertrain apparatus of claim 3, wherein the selected driveshaft is provided with a first coupling portion to be engaged with the first spline when the main sleeve is at the 1lsd position, and wherein the selected driveshaft is provided with a second coupling portion to be engaged with the first spline when the main sleeve is at the 2lsd position, wherein the first coupling portion and the second coupling portion are spaced from each other along the axial direction. ### Claim 5 (depends on 3) The powertrain apparatus of claim 3, wherein the second driven gear is provided with a third coupling portion to be engaged with the second spline when the main sleeve is at the N position, and wherein the second driven gear is provided with a fourth coupling portion to be engaged with the fourth spline when the main sleeve is at the 2 position and the 2lsd position, wherein the third coupling portion and the fourth coupling portion are spaced from each other in a radial direction thereof. ### Claim 6 (depends on 1) The powertrain apparatus of claim 1, wherein a gear ratio formed by the first drive gear and the first driven gear is greater than a gear ratio formed by the second drive gear and the second driven gear. ### Claim 7 (depends on 1) The powertrain apparatus of claim 1, wherein each of the first clutch and the second clutch is a friction clutch.