US 12,257,904 B2
Hybrid driving module
Jung-Woo Kim, Daegu (KR)
Assigned to VALEO KAPEC CO., LTD., Daegu (KR)
Appl. No. 18/259,478
Filed by VALEO KAPEC CO., LTD., Daegu (KR)
PCT Filed Dec. 30, 2021, PCT No. PCT/KR2021/020243
§ 371(c)(1), (2) Date Jun. 27, 2023,
PCT Pub. No. WO2022/146065, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 10-2020-0189835 (KR), filed on Dec. 31, 2020; and application No. 10-2021-0167615 (KR), filed on Nov. 29, 2021.
Prior Publication US 2024/0066972 A1, Feb. 29, 2024
Int. Cl. B60K 6/387 (2007.10); B60K 6/26 (2007.10); B60K 6/405 (2007.10); F16D 13/72 (2006.01); F16D 25/0638 (2006.01); H02K 7/00 (2006.01); H02K 7/10 (2006.01)
CPC B60K 6/387 (2013.01) [B60K 6/26 (2013.01); B60K 6/405 (2013.01); F16D 13/72 (2013.01); F16D 25/0638 (2013.01); H02K 7/006 (2013.01); H02K 7/10 (2013.01); B60Y 2200/92 (2013.01); B60Y 2400/424 (2013.01); B60Y 2400/426 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A hybrid drive module, which is disposed between an engine and a transmission of a power system and includes a motor configured to provide power to the transmission, the hybrid drive module comprising:
a rotor hub on which a rotor of the motor is installed, the rotor hub dividing an internal space of the hybrid drive module into a first accommodation space and a second accommodation space in an axial direction;
a fluid clutch and a first clutch pack connected to the rotor hub respectfully and accommodated in the first accommodation space, the first accommodation space configured to allow a first fluid for operating the fluid clutch and cooling the first clutch pack to flow and fill the first accommodation space;
a first piston plate installed in the first accommodation space and configured to press or release the first clutch pack;
a first operation chamber installed in the first accommodation space and filled with a second fluid that generates pressure for moving the first piston plate toward the first clutch pack; and
a first compensation chamber installed in the first accommodation space and filled with a third fluid in the second accommodation space with pressure lower than pressure of the first fluid in the first accommodation space through the rotor hub,
wherein the first piston plate has a first surface directed toward the first clutch pack in the axial direction and facing the first compensation chamber, and a second surface opposite to the first surface in the axial direction and facing the first operation chamber,
wherein the first piston plate is disposed between the rotor hub and the first operation chamber in the axial direction, and
wherein the first operation chamber is defined by the second surface and a support cylinder disposed to face the second surface in the axial direction and connected to the rotor hub.