Heat pump system for vehicle and method of controlling the same

摘要

Disclosed therein are a heat pump system for a vehicle and a method of controlling the heat pump system, which variably controls only a compressor 100 if the number of revolutions of the compressor is less than the upper limit of the number of the maximum revolutions of the compressor and operates an electric heater 115 only when the number of revolutions of the compressor reaches the upper limit of the number of the maximum revolutions of the compressor in order to satisfy a target discharge temperature in a heat pump mode, thereby preventing that convergence of an air discharge temperature of the interior of the vehicle is deteriorated or becomes unstable when the compressor 100 and the electric heater 115 are variably controlled at the same time in order to satisfy the target discharge temperature.