Heat pump system control method for vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsJae Yeon Kim, Wan Je Cho
Life of this patent
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Abstract
A control method of a heat pump system for a vehicle includes a first cooling apparatus having a first radiator, a first water pump, an electrical component, a valve, and a branch line, which are connected by a first coolant line and circulate a first coolant by the first water pump to the electrical component; a second cooling apparatus including a second radiator and a second water pump connected by a second coolant line; and an air conditioning apparatus including a compressor, a heater, an expansion valve, and a heat exchanger which are connected by a refrigerant line circulated with a refrigerant.
Claims9
A control method of a heat pump system for a vehicle to be used for heating the vehicle by selectively recovering thermal energy generated from an electrical component and an external heat source when the vehicle is running, wherein the heat pump system includes a first cooling apparatus including a first radiator, a first water pump, the electrical component, a valve, and a branch line, which are connected by a first coolant line, wherein a first coolant is circulated by the first water pump to the electrical component;
- a second cooling apparatus including a second radiator and a second water pump connected by a second coolant line;
- and an air conditioning apparatus including a compressor, a heater, an expansion valve, and a heat exchanger which are connected by a refrigerant line circulated with a refrigerant, wherein the heat exchanger is connected to the first and second coolant lines respectively, and the heat pump system is controlled by a controller, the control method comprising:
- performing heating of a vehicle interior when the vehicle is running and operating the first cooling apparatus;
- detecting a temperature of the first coolant circulated in the first cooling apparatus and a temperature of the second coolant in the second cooling apparatus and determining when a difference value of the temperature of the first coolant and the temperature of the second coolant is higher than a predetermined temperature;
- and
- controlling operation of the second water pump and finishing the control by comparing the difference value of the temperature of the first coolant and the temperature of the second coolant with the predetermined temperature.
Dependencies are inferred from the claim text.