Dual clutch transmission for vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsSoon Ki Eo, Woo Churl Son, Il Han Yoo, Min Ho Chae
Life of this patent
Estimating the term…
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.
Claims17
A dual clutch transmission for a vehicle, the dual clutch transmission comprising:
- a first input shaft to which a first clutch is connected;
- a second input shaft to which a second clutch is connected, the second input shaft being mounted coaxially with the first input shaft;
- a first output shaft, a second output shaft and a third output shaft mounted in parallel with the first input shaft and the second input shaft;
- and
- a combined gear group including first and second pairs of external gears configured to be connected in series to each other or disconnected from each other so that an output of the first input shaft is decelerated in at least 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,
- wherein the combined gear group includes:
- the first pair of external gears having a third-stage driving gear mounted on the first input shaft and a third-stage driven gear mounted on the first output shaft to implement a third-gear shifting stage among a series of gear shifting stages;
- the second pair of external gears having a sixth-stage driven gear mounted on the first output shaft and a sixth-stage driving gear mounted on the second input shaft to implement a sixth-gear shifting stage among the series of gear shifting stages;
- and
- a series synchronizer configured to selectively connect the third-stage driven gear and the sixth-stage driven gear.
A dual clutch transmission for a vehicle, the dual clutch transmission comprising:
- a first input shaft to which a first clutch is connected;
- a second input shaft to which a second clutch is connected, the second input shaft being mounted coaxially with the first input shaft;
- a first output shaft, a second output shaft and a third output shaft mounted in parallel with the first input shaft and the second input shaft;
- and
- a combined gear group including first and second pairs of external gears configured to be connected in series to each other or disconnected from each other so that an output of the first input shaft is decelerated in at least 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,
- wherein the combined gear group includes:
- a first pair of external gears including a fifth-stage driving gear mounted on the first input shaft and a fifth-stage driven gear mounted on the first output shaft for facilitating a fifth-gear shifting stage among a series of gear shifting stages to be implemented;
- a second pair of external gears including a sixth-stage driven gear mounted on the first output shaft and a sixth-stage driving gear mounted on the second input shaft for implementing a sixth-gear shifting stage among the series of gear shifting stages;
- and
- a series synchronizer configured to selectively connect the fifth-stage driven gear and the sixth-stage driven gear to each other.
Dependencies are inferred from the claim text.