US 12,115,969 B2
Method for controlling powertrain of hybrid vehicle
Sung Mu Choi, Gyeonggi-do (KR); and Ji Ho Cho, Gyeonggi-do (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 Apr. 25, 2022, as Appl. No. 17/728,397.
Claims priority of application No. 10-2021-0102193 (KR), filed on Aug. 3, 2021.
Prior Publication US 2023/0041675 A1, Feb. 9, 2023
Int. Cl. B60W 20/20 (2016.01); B60W 20/40 (2016.01)
CPC B60W 20/20 (2013.01) [B60W 20/40 (2013.01); B60W 2510/0614 (2013.01); B60W 2510/0676 (2013.01); B60W 2510/068 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for controlling a powertrain of a hybrid vehicle including an internal combustion engine and a motor, the method comprising:
determining, by a hybrid controller, whether an ambient air temperature is lower than a predetermined temperature;
driving, by the hybrid controller, the motor when the ambient air temperature is lower than the predetermined temperature;
operating, by the hybrid controller, a heating disc of an electrically heated catalytic converter of an internal combustion engine;
supplying, by the hybrid controller, ambient air to the heating disc at a first flow rate while operating the heating disc;
determining, by the hybrid controller, whether a temperature of the heating disc exceeds a limit temperature; and
when the temperature of the heating disc exceeds the limit temperature, supplying, by the hybrid controller, the ambient air to the heating disc at a second flow rate higher than the first flow rate to lower the temperature of the heating disc.