Patent ID: 11951802
Assignee: KIA MOTORS CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. An apparatus for controlling heating of a hybrid electric vehicle (HEV), the apparatus comprising:
a full automatic temperature control (FATC) configured to:
receive a heating request from a driver;
when the heating request is received from the driver, determine whether an entry condition of FATC engine ON request (FEOR) control is satisfied;
when the entry condition of the FEOR control is not satisfied, determine 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, check whether the vehicle is capable of entering a HEV mode; and
when it is checked that the vehicle is not capable of entering the HEV mode, determine whether the vehicle enters an idle mode for the PFEOR control;

a hybrid control unit (HCU) configured to, when it is determined that the vehicle enters the idle mode for the PFEOR control, issue 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) using a pre-engine ON request bit signal of the FATC; and
the ECU configured to perform engine idle speed control along with engine ON based on the command,
wherein when a target coolant temperature+α is greater than a current coolant temperature or a target discharge port temperature+α is greater than a current discharge port temperature, the FATC determines that the entry condition of the PFEOR control is satisfied.