Patent application number | Description | Published |
20110294617 | GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A gear train of an automatic transmission realizes at least ten forward speeds and one reverse speed by combining four simple planetary gear sets with four clutches and two brakes and three friction elements are operated at each shift-speed such that the gear train has advantages of simplifying structures of the automatic transmission and improving power delivery performance and fuel economy. | 12-01-2011 |
20120004066 | GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A gear train of an automatic transmission for vehicles which achieving at least ten forward speeds and one reverse speed, may include an input shaft receiving torque of an engine which may be driving source, an output gear outputting a changed torque, first, second, third, and fourth planetary gear sets respectively having first, second, third, and fourth sun gears, first, second, third, and fourth planet carriers, and first, second, third, and fourth ring gears as rotation elements thereof, eight rotation shafts formed by connecting one rotation element to other rotation element, the input shaft, or the output gear, or being the rotation element, and friction members provided with first, second, third, and fourth clutches disposed between selected rotation shafts and controls delivery of the torque therebetween and first and second brakes selectively connecting selected rotation shaft to a transmission housing. | 01-05-2012 |
20150105211 | PLANETARY GEAR TRAIN OF AN AUTOMATIC TRANSMISSION FOR A VEHICLE - A planetary gear train includes first, second, third and fourth planetary gear sets, first rotating body including first sun gear, second rotating body including first planet carrier, third rotating body including first ring gear and third and fourth sun gears, fourth rotating body including second sun gear, fifth rotating body including second planet carrier, sixth rotating body including second ring gear and third planet carrier, seventh rotating body including third ring gear and fourth planet carrier, an eighth rotating body including fourth ring gear, first clutch variably connecting the first and fourth rotating bodies, second clutch variably connecting the second and fourth rotating bodies, third clutch variably connecting the third and fifth rotating bodies, fourth clutch variably connecting the fifth and eighth rotating bodies, first brake variably connecting the first rotating body and the transmission housing, and second brake variably connecting the eighth rotating body and the transmission housing. | 04-16-2015 |
20150148177 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLE - A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque, an output shaft disposed in parallel with and apart from the input shaft, a first planetary gear set having at least three rotation elements, a second planetary gear set having at least three rotation elements, a first rotation shaft, a second rotation shaft, a third rotation shaft, and a fourth rotation shaft. | 05-28-2015 |
20150148178 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A planetary gear train may include an input shaft, an output shaft, first and second planetary gear sets each having three rotation elements, a first rotation shaft directly connected to one rotation element of the second planetary gear set and selectively connected to the input shaft, a second rotation shaft directly connected to one rotation element of the first planetary gear set and another rotation element of the second planetary gear set, and directly connected to the output shaft, a third rotation shaft directly connected to another rotation element of the first planetary gear set and the remaining rotation element of the second planetary gear set, and selectively connected to the input shaft and/or selectively connected to a transmission housing, and a fourth rotation shaft directly connected to the remaining rotation element of the first planetary gear set, and selectively connected to the input shaft through two paths and/or selectively connected to the transmission housing. | 05-28-2015 |
20150148179 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A planetary gear train may include an input shaft, an output shaft, first and second planetary gear sets each having three rotation elements, a first rotation shaft directly connected to one rotation element of the first planetary gear set and one rotation element of the second planetary gear set, and selectively connected to the input shaft, a second rotation shaft directly connected to another rotation element of the second planetary gear set and directly connected to the output shaft, a third rotation shaft directly connected to another rotation element of the first planetary gear set and the remaining rotation element of the second planetary gear set, and selectively connected to the input shaft and/or selectively connected to a transmission housing, and a fourth rotation shaft directly connected to the remaining rotation element of the first planetary gear set, and selectively connected to the input shaft through two paths and/or selectively connected to the transmission housing. | 05-28-2015 |
20150148181 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque, an output shaft disposed in parallel with and apart from the input shaft, a planetary gear set including a first sun gear, a second sun gear, a common planet, and a common ring gear engaged, a first rotation shaft directly connected to the first sun gear and selectively connected to the input shaft, a second rotation shaft directly connected to the common planet carrier and directly connected to the output shaft, a third rotation shaft directly connected to the common ring gear and selectively connected to the input shaft or to a transmission housing, and a fourth rotation shaft directly connected to the second sun gear and selectively connected to the input shaft through first and second paths or to the transmission housing. | 05-28-2015 |
20160091058 | MULTI-STAGE AUTO TRANSMISSION FOR VEHICLE - A multi-stage auto transmission for a vehicle may include first, second, third and fourth planetary gear sets each including first, second and third rotating elements, friction members including first, second and third clutches and first, second and third brakes, an input shaft to which rotation power is inputted, and an output shaft from which the rotation power is outputted. By selectively, or continuously connecting the rotating elements of the planetary gear sets to the input shaft, the output shaft or each other, the multi-stage auto transmission implements ten forward speeds and one reverse speed. | 03-31-2016 |
20160108995 | MULTI-STAGES AUTOMATIC TRANSMISSION FOR VEHICLE - A multi-stages automatic transmission for a vehicle includes a first, second, third and fourth planetary gear sets, each including a first, second and third rotation elements, respectively, and friction members including first, second, third and fourth clutches and first and second brakes. | 04-21-2016 |