Abstract: A dual-clutch transmission may include: a first input shaft and a second input shaft mounted concentrically to the first input shaft; a first clutch mounted to the first input shaft to selectively transmit power to the first input shaft; a second clutch mounted to the second input shaft to selectively transmit power to the second input shaft; a first output shaft and a second output shaft mounted in parallel with the first input shaft and the second input shaft; an input shaft connection device provided to switch a power transmitting and a blocking state between the first input shaft and the second input shaft by use of a selection output shaft; a plurality of drive gears mounted on the first input shaft and the second input shaft; and a plurality of driven gears mounted on the first output shaft and the second output shaft engaged with the plurality of drive gears to form each shifting stage.

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.

Abstract: A dual clutch transmission may include a first input shaft having a plurality of odd stage driving gears; a second input shaft disposed to have a concentric shaft with the first input shaft and including a plurality of even stage driving gears; an output shaft; a counter shaft disposed parallel to the first input shaft, the second input shaft, and the output shaft to continuously transfer power to the output shaft and including odd stage driven gears engaged with the odd stage driving gears and even stage driven gears engaged with the even stage driving gears; a plurality of synchronous devices; a plurality of shift forks coupled to the plurality of synchronous devices; and one shift rail provided to commonly guide a linear sliding of the plurality of shift forks.

Abstract: A powertrain for a vehicle may include a first planetary gear set configured such that a first rotation element of three rotation elements thereof is connected to an input shaft; and a first clutch device and a second clutch device provided in series between a second rotation element and a third rotation element of the first planetary gear set to directly connect the second rotation element and the third rotation element, wherein the second clutch device is configured to selectively lock the third rotation element; and the second rotation element of the first planetary gear set functions as an output element of the first planetary gear set.

Abstract: A transmission for an electric vehicle, may include a concentric deceleration device for receiving power from a motor shaft and for decelerating; an output shaft disposed in parallel with the input shaft; a hollow shaft rotatably provided on the input shaft; a clutch device provided to switch the transmission state of power from the input shaft to the hollow shaft; a first synchronizer having a hub fixed to the input shaft; a second synchronizer having a hub fixed to the hollow shaft; a plurality of driving gears having different sizes and provided on the input shaft and the hollow shaft to be engaged with at least one of the first synchronizer and the second synchronizer; and a plurality of driven gears provided on the output shaft to be engaged with the plurality of driving gears to form different shift ratios, respectively.

Abstract: A powertrain for a vehicle may include a compound planetary gear set configured such that, of four rotation elements, a first rotation element is connected to an input shaft and a second rotation element is connected to an output element; a brake provided to connect a rotating body to a transmission housing to be locked thereto; a first clutch device provided to switch a connection state of the rotating body between a third rotation element and a fourth rotation element of the compound planetary gear set; and a second clutch device provided to switch a connection state of the second rotation element of the compound planetary gear set to the input shaft.

Abstract: A transmission includes: a pre-engaging mechanism including a plurality of pre-engaging gear pairs engaged with a second input shaft, a first countershaft, and a second countershaft so that the pre-engaging gear pairs are appropriately selected by a clutch unit; a synchro-engaging mechanism including a plurality of synchro-engaging gear pairs engaged with a third input shaft, the first countershaft, and the second countershaft so that the synchro-engaging gear pairs are appropriately selected by a clutch unit; a one-way clutch positioned on a corresponding power transmission path so that power transmitted through the first input shaft from the engine is transmitted only to the third input shaft; and a main shifting mechanism including a plurality of main gear pairs engaged with the first countershaft, the second countershaft, and an output shaft so that the main gear pairs are appropriately selected by a clutch.

Abstract: An automated manual transmission may include an input shaft selectively provided with torque from an engine through a clutch; an output shaft disposed in parallel with the input shaft; a shifting device including a plurality of gear pairs, which have different gear ratios and are engaged with each other on the input shaft and the output shaft, and selecting at least a gear pair out of the plurality of gear pairs, by using a coupling member; wherein the at least a gear pair corresponds to a speed of a vehicle a motor shaft connected to a motor and provided with torque from the motor; and clutch devices disposed between the motor shaft and the input shaft to transmit torque in a first direction thereof and between the motor shaft and the output shaft to transmit torque in a second direction thereof.

Abstract: A dual clutch transmission for a vehicle may include a first input shaft to which a first clutch is connected; a second input shaft connected to a second clutch and disposed coaxially with the first input shaft; a first output shaft, a second output shaft and a third output shaft disposed in parallel with the first input shaft and the second input shaft; and a combined gear group including two pairs of external gears configured to be connected in series to each other or disconnected from each other so that power of the first input shaft is decelerated in two steps using the first output shaft to enable the second input shaft to be driven in a direction in which the first input shaft is driven.

Abstract: An automotive transmission may include a first planetary gear set having first to third rotation elements, an input shaft engaged with the first rotation element of the first planetary gear set, an output shaft engaged with the second rotation element of the first planetary gear set, and a sleeve section sliding linearly along an axial direction of the first planetary gear set to selectively switch to a first state in which the third rotation element is secured to a transmission housing, a second state in which the third rotation element is engaged with a further rotation element, or a neutral state in which the third rotation element is not secured to or engaged with the transmission housing or the further rotation element.

Abstract: A powertrain for a vehicle may include a compound planetary gear set configured such that, of four rotation elements, a first rotation element is connected to an input shaft and a second rotation element is connected to an output element; a brake provided to connect a rotating body to a transmission housing to be locked thereto; a first clutch device provided to switch a connection state of the rotating body between a third rotation element and a fourth rotation element of the compound planetary gear set; and a second clutch device provided to switch a connection state of the second rotation element of the compound planetary gear set to the input shaft.

Abstract: A powertrain for a vehicle may include a first planetary gear set configured such that a first rotation element of three rotation elements thereof is connected to an input shaft; and a first clutch device and a second clutch device provided in series between a second rotation element and a third rotation element of the first planetary gear set to directly connect the second rotation element and the third rotation element, wherein the second clutch device is configured to selectively lock the third rotation element; and the second rotation element of the first planetary gear set functions as an output element of the first planetary gear set.

Abstract: A transmission for a vehicle is provided to reduce a full length and a weight of the transmission. The transmission includes: first and second input shafts, output and transfer shafts disposed in parallel with the first and second input shafts; a transfer idler shaft to reduce rotational power transmitted to the transfer shaft and transfer the reduced rotational power to the output shaft via a gear structure; and a shaft gear apparatus. The shift gear apparatus selects a gear pair suitable for a traveling speed by a synchronizer by meshing gear pairs with: the first input shaft and the output shaft, the second input shaft and the output shaft, and the first input shaft and the transfer shaft. In particular, the gear pairs include a gear pair to form a lowermost stage, a gear pair forming an upper most stage, and a gear pair for forming a reverse stage.

Abstract: A transmission for electric vehicle may include first input shaft connected to motor, first planetary gear set including first rotation element selectively connectable to the first input shaft and third rotation element which is fixed, second planetary gear set including first rotation element directly connected to the first input shaft and third rotation element directly connected to second rotation element of the first planetary gear set, first clutch selectively connecting the first input shaft and second rotation element of the second planetary gear set, output shaft, driving gear rotating with the second rotation element of the second planetary gear set, driven gear engaged with the driving gear, second clutch selectively connecting the first rotation element of the first planetary gear set to the first input shaft, and third clutch disposed to fix or engage the third rotation element of the second planetary gear set with the driving gear.

Abstract: A powertrain for a vehicle, may include a first planetary gear set having three rotation elements, with an input shaft connected to a first rotation element of the three rotation elements; an output shaft connected to a second rotation element of the first planetary gear set; a differential connected to the output shaft; a brake configured to lock or release a third rotation element of the first planetary gear set; a hub connected to the second rotation element through a clutch; and a sleeve unit restricted in rotation with respect to the hub and configured to be linearly slidable along an axial direction of the first planetary gear set to change a restriction state of relative rotation between a selected driveshaft of two driveshafts receiving power from the differential, the second rotation element, the third rotation element, and the hub by linear sliding.

Abstract: A transmission for an electric vehicle may include an input shaft connect with a motor; a planetary gear set having a first rotation element directly connected to the input shaft, a second rotation element and a third rotation element; an output shaft having an output gear; a first drive gear provided in the third rotation element of the planetary gear set; a first driven gear disposed at the output shaft to be rotatable to engage with the first drive gear; a second drive gear connected to or disconnected from the input shaft; a second driven gear engaged with the second drive gear and directly connected to the first driven gear; a third drive gear directly connected to the second rotation element of the planetary gear set; and a third driven gear engaged with the third drive gear and directly connected to the output shaft.

Abstract: A powertrain for a vehicle may include a main shaft; a transmission unit provided to selectively supply power of a motor to the main shaft with different gear ratios; a differential connected to the main shaft; two driveshafts provided to output power in opposed directions from the differential; a rotating ring rotatably mounted on the main shaft through a first clutch; and a second clutch provided to select either a state where the rotating ring is connected to the transmission unit or a state where the rotating ring is connected to a selected driveshaft of the two driveshafts.

Abstract: A transmission for electric vehicles may include a first input shaft receiving a rotational force from a first motor; a second input shaft receiving a rotational force from a second motor; a one-way clutch mounted between the first and second input shafts, transferring only a forward rotation of the first input shaft to the second input shaft, and transferring only a reverse rotation of the second input shaft to the first input shaft; an output shaft disposed in parallel to the first and second shafts; a gear shifting device coupled to the first input shaft and the output shaft and coupled to the second input shaft and the output shaft, wherein the gear pairs have different shift ratios, and a gear pair corresponding to a driving speed is selected by a clutch device; and an idler gear coupled between gears coupled to the second input shaft and the output shaft.

Abstract: A powertrain for a vehicle, may include a first planetary gear set having three rotation elements, with an input shaft connected to a first rotation element of the three rotation elements; an output shaft connected to a second rotation element of the first planetary gear set; a differential connected to the output shaft; a brake configured to lock or release a third rotation element of the first planetary gear set; a hub connected to the second rotation element through a clutch; and a sleeve unit restricted in rotation with respect to the hub and configured to be linearly slidable along an axial direction of the first planetary gear set to change a restriction state of relative rotation between a selected driveshaft of two driveshafts receiving power from the differential, the second rotation element, the third rotation element, and the hub by linear sliding.

Abstract: A transmission for electric vehicle may include first input shaft connected to motor, first planetary gear set including first rotation element selectively connectable to the first input shaft and third rotation element which is fixed, second planetary gear set including first rotation element directly connected to the first input shaft and third rotation element directly connected to second rotation element of the first planetary gear set, first clutch selectively connecting the first input shaft and second rotation element of the second planetary gear set, output shaft, driving gear rotating with the second rotation element of the second planetary gear set, driven gear engaged with the driving gear, second clutch selectively connecting the first rotation element of the first planetary gear set to the first input shaft, and third clutch disposed to fix or engage the third rotation element of the second planetary gear set with the driving gear.