US Patent 11760161 Heat pump system for vehicle and control method thereof

A heat pump system for the vehicle includes a cooling apparatus, which includes a radiator and a water pump connected by a coolant line and circulating a coolant in the coolant line to cool at least one heating element provided on the coolant line. The heat pump system further includes a branched line including one end connected to a valve on the coolant line between the radiator and the heating element and the other end connected to the coolant line between the radiator and the water pump. The heat pump system further includes an air conditioner device circulating a refrigerant along the refrigerant line to adjust an indoor temperature of the vehicle.