Apparatus and method of controlling heating of hybrid electric vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsDong Jun Shin, Dong Su Ha, Jea Mun Lee
Life of this patent
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Abstract
A method of controlling heating of a hybrid electric vehicle is provided. The method includes receiving a heating request from a driver; determining whether an entry condition of pre-FATC engine ON request (PFEOR) control is satisfied; checking whether the vehicle is capable of entering a HEV mode; determining whether the vehicle enters an idle mode for the PFEOR control; issuing a command for a target engine torque value and a target revolutions per minute 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.
Claims14
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.
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.
Dependencies are inferred from the claim text.