US 12,408,298 B2
Vehicular coolant system and method of controlling the same
Jae Min Chae, Seoul (KR); Chang Gi Ryu, Seoul (KR); Soo II Lee, Hwaseong-si (KR); Dae Hyun Song, Seoul (KR); Seung Ryeol Lee, Hwaseong-si (KR); and Jong Dae Gwak, Anyang-si (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 Oct. 17, 2023, as Appl. No. 18/488,716.
Claims priority of application No. 10-2023-0092615 (KR), filed on Jul. 17, 2023.
Prior Publication US 2025/0031345 A1, Jan. 23, 2025
Int. Cl. H05K 7/20 (2006.01); B60H 1/00 (2006.01); B60L 58/26 (2019.01); H01M 10/48 (2006.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/635 (2014.01); H01M 10/6568 (2014.01); H01M 10/663 (2014.01)
CPC H05K 7/20281 (2013.01) [B60H 1/00278 (2013.01); B60L 58/26 (2019.02); H01M 10/486 (2013.01); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/635 (2015.04); H01M 10/6568 (2015.04); H01M 10/663 (2015.04); H05K 7/20263 (2013.01); H05K 7/20272 (2013.01); H05K 7/20927 (2013.01); B60H 2001/00307 (2013.01); B60H 1/00921 (2013.01); B60H 2001/00928 (2013.01); B60L 2240/545 (2013.01); H01M 2220/20 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A coolant system, comprising:
a battery coolant line fluidly connected to a battery;
a power electronics coolant line fluidly connected to a power electronic component;
a radiator coolant line fluidly connected to a radiator;
a control valve configured to allow the battery coolant line, the power electronics coolant line, and the radiator coolant line to be fluidly connected to or separated from one another;
a temperature sensor disposed at at least one of the battery coolant line, the power electronics coolant line, or the radiator coolant line; and
a controller configured to control the control valve to:
fluidly connect (i) a first coolant line that does not have the temperature sensor among the battery coolant line, the power electronics coolant line, and the radiator coolant line to (ii) a second coolant line that has the temperature sensor among the battery coolant line, the power electronics coolant line, and the radiator coolant line, and
determine a first temperature of a coolant passing through the first coolant line based on a second temperature sensed by the temperature sensor disposed at the second coolant line.