US 11,951,802 B2
Apparatus and method of controlling heating of hybrid electric vehicle
Dong Jun Shin, Hwaseong-si (KR); Dong Su Ha, Hwaseong-si (KR); and Jea Mun Lee, Seoul (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA MOTORS CORPORATION, Seoul (KR)
Filed on Mar. 30, 2021, as Appl. No. 17/217,753.
Claims priority of application No. 10-2020-0133101 (KR), filed on Oct. 15, 2020.
Prior Publication US 2022/0118821 A1, Apr. 21, 2022
Int. Cl. B60H 1/00 (2006.01); B60K 6/24 (2007.10); B60W 20/20 (2016.01)
CPC B60H 1/00764 (2013.01) [B60W 20/20 (2013.01); B60K 6/24 (2013.01); B60W 2540/215 (2020.02); B60W 2710/065 (2013.01); B60W 2710/0688 (2013.01); B60W 2710/30 (2013.01); B60Y 2200/92 (2013.01); B60Y 2300/182 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of controlling heating of a hybrid electric vehicle (HEV), the method comprising:
receiving a heating request from a driver;
when the heating request is received from the driver, determining whether an entry condition of full automatic temperature control (FATC) engine ON request (FEOR) control is satisfied;
when the entry condition of the FEOR control is not satisfied, determining whether an entry condition of pre-FATC engine ON request (PFEOR) control is satisfied;
when the entry condition of the PFEOR control is determined to be satisfied, checking whether the vehicle is capable of entering a HEV mode;
when checking that the vehicle is not capable of entering the HEV mode, determining whether the vehicle enters an idle mode for the PFEOR control;
when determining that the vehicle enters the idle mode for the PFEOR control, issuing a command for a target engine torque value and a target revolutions per minute (RPM) for the idle mode to an engine control unit (ECU) from a hybrid control unit (HCU); and
performing an engine idle speed control along with engine ON based on the command,
when the target coolant temperature+α is greater than the current coolant temperature or the target discharge port temperature+α is greater than the current discharge port temperature, determining that the entry condition of the PFEOR control is satisfied.