US 12,168,386 B2
Vehicle thermal management system
Tae Han Kim, Seoul (KR); and Jae Hyun Song, Seoul (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Jul. 20, 2022, as Appl. No. 17/869,123.
Claims priority of application No. 10-2021-0174903 (KR), filed on Dec. 8, 2021.
Prior Publication US 2023/0173871 A1, Jun. 8, 2023
Int. Cl. B60H 1/00 (2006.01)
CPC B60H 1/00278 (2013.01) [B60H 1/00342 (2013.01); B60H 1/00392 (2013.01); B60H 2001/00307 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vehicle thermal management system comprising:
a first refrigeration cycle including a first refrigerant loop in which a first refrigerant is circulated;
a battery cooling subsystem including a battery coolant loop in which a battery-side coolant is circulated, wherein the battery coolant loop is fluidly connected to a battery;
a second refrigeration cycle including a second refrigerant loop in which a second refrigerant is circulated, the second refrigeration cycle comprising a condenser thermally connected to the battery cooling subsystem;
a refrigerant chiller thermally connecting the first refrigeration cycle and the second refrigeration cycle; and
a battery chiller thermally connecting the second refrigeration cycle and the battery cooling subsystem, wherein the condenser is located on a downstream side of the battery chiller in the second refrigerant loop;
wherein the second refrigeration cycle comprises:
a chiller-side bypass conduit configured to allow the second refrigerant to bypass the battery chiller; and
a chiller-side three-way valve configured to control a flow of the second refrigerant between the chiller-side bypass conduit and the second refrigerant loop.