Patent application number | Description | Published |
20120329600 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A planetary gear train of an automatic may include an input shaft, an output shaft, a first planetary gear set having a first, second and third rotation elements, the first selectively connected to the input shaft, a second planetary gear set having a fourth, fifth and sixth rotation elements, the fourth directly connected to the second rotation element and the fifth directly connected to the input shaft, a compound planetary gear set having seventh, eighth, ninth and tenth rotation elements, the seventh selectively receiving the speed of the input shaft from the fifth, the eighth selectively receiving increased speed from the sixth, the ninth directly connected to the output shaft, and the tenth selectively connected to the input shaft, eight rotation members consisting of at least one of the rotation elements and six friction members. | 12-27-2012 |
20130029799 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A planetary gear train of an automatic transmission may include an input shaft, an output gear, a first planetary gear set always outputting a negative rotation speed from a rotation speed input from the input shaft, a second planetary gear outputting the negative rotation speed input from the first planetary gear set or converting negative rotation speed into a positive rotation speed and outputting the positive rotation speed, a compound planetary gear set formed by third and fourth planetary gear sets and changing the rotation speed selectively through two paths and into nine forward speeds and one reverse speed, eight rotational members including two rotation elements connected to each other or one rotation element among the rotation elements of the first and second planetary gear sets and the compound planetary gear set, and a six friction members, and a transmission housing. | 01-31-2013 |
20130040775 | GEAR TRAIN OF MULTI-STEP TRANSMISSION FOR VEHICLE - Disclosed herein is a gear train of a multi-step transmission for a vehicle, which can shift gears among nine forward speeds and one reverse speed. The gear train realizes a desired level of multi-step change gear ratios and has a reduced number of sets of planetary gears to reduce the volume and length of the transmission, thus realizing a compact structure, thereby facilitating the installation of the transmission in the vehicle. | 02-14-2013 |
20130150203 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A planetary gear train of an automatic transmission may include a first planetary gear set outputting a negative rotation speed by using a rotation speed selectively input from the input shaft, a second planetary gear set outputting a reduced rotation speed by using the rotation speed selectively input from the input shaft or to selectively become a direct-coupling state together with the first planetary gear set, a compound planetary gear set having four rotation elements by combining third and fourth planetary gear sets, seven rotational members including two rotation elements connected to each other or one rotation element among the rotation elements of the first and second planetary gear sets and the compound planetary gear set, and six friction members including clutches, and brakes. | 06-13-2013 |
20130150204 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A planetary gear train of an automatic transmission includes an input shaft, an output shaft, a first planetary gear set outputting a negative rotation speed by using a rotation speed input from the input shaft, a second planetary gear set converting the negative rotation speed into a positive rotation speed, a compound planetary gear set changing the rotation speed selectively input from the input shaft, the negative rotation speed and the positive rotation speed into nine forward speeds and one reverse speed, eight rotational members, and six friction members, and brakes interposed between a selected rotational member among the rotational members and a transmission housing. | 06-13-2013 |
20140128197 | MULTI-STAGE AUTOMATIC TRANSMISSION - A multi-stage automatic transmission in which planet gear mechanisms, external gears and friction elements are combined in order to realize nine forward gears and one rearward gear having excellent operating conditions for friction elements and superior shift range ratios, thereby achieving excellent power performance and fuel efficiency. | 05-08-2014 |
20140357444 | CONTINUOUSLY VARIABLE TRANSMISSION FOR VEHICLE - A continuously variable transmission apparatus for a vehicle, may include a main shaft configured to receive torque of an engine, a subshaft disposed in parallel with and spaced apart from the main shaft, a reverse speed gear set having a reverse speed gear selectively connected to the main shaft, a first speed gear set having a first speed gear selectively connected to the subshaft, a second speed gear set having a second speed gear selectively connected to the subshaft, a variable shift apparatus engaged with the main shaft and the subshaft and continuously changing a ratio between rotation speeds of the main shaft and the subshaft so as to transmit torque of the main shaft to the subshaft, and an output gear set transmitting torque transmitted from the first speed gear or the second speed gear to a differential through a final reduction gear. | 12-04-2014 |