US 11,988,278 B2
Dual clutch transmission for a motor vehicle, in particular for an automobile, method for operating a dual clutch transmission of this type and motor vehicle
Enrico Szeppat, Göritzhain (DE); and Lutz Gundlach, Ingolstadt (DE)
Assigned to AUDI AG, Ingolstadt (DE)
Appl. No. 17/771,922
Filed by AUDI AG, Ingolstadt (DE)
PCT Filed May 26, 2020, PCT No. PCT/EP2020/064487
§ 371(c)(1), (2) Date Apr. 26, 2022,
PCT Pub. No. WO2021/094001, PCT Pub. Date May 20, 2021.
Claims priority of application No. 102019130483.0 (DE), filed on Nov. 12, 2019.
Prior Publication US 2022/0373077 A1, Nov. 24, 2022
Int. Cl. F16H 61/00 (2006.01)
CPC F16H 61/0059 (2013.01) 18 Claims
OG exemplary drawing
 
1. A dual clutch transmission for a motor vehicle, comprising:
a first sub-transmission associated with a first clutch;
a second sub-transmission associated with a second clutch, wherein the dual clutch transmission is configured to be shifted into a parking lock state, in which two gears of the first sub-transmission are simultaneously engaged,
a first gear wheel, configured as a loose wheel and rotatably arranged on a first shaft of the dual clutch transmission;
a first switching element, configured to connect the first gear wheel in a torque-proof manner to the first shaft;
a second gear wheel configured as a loose wheel and rotatably arranged on a second shaft of the dual clutch transmission; and
a second switching element configured to connect the second gear wheel in a torque-proof manner to the second shaft and to end the parking lock state by introducing a torque to a locked sub-transmission so that exactly one gear of the non-locked sub-transmission is engaged and then introducing the torque via a clutch associated with the non-locked sub-transmission to the locked sub-transmission.