A vehicle air-conditioning apparatus includes a refrigerant circuit including a heat exchanger, a fan which sends air to the heat exchanger, and a controller which controls the refrigerant circuit and the fan. The vehicle air-conditioning apparatus is mounted on a vehicle. The controller determines if a position of the vehicle or a speed of the vehicle satisfies a predetermined condition. The controller acquires a physical quantity, the physical quantity having already been correlated with a clogging amount of the heat exchanger and the correlation being dependent on whether the predetermined condition is satisfied. The controller determines whether or not clogging occurs in the heat exchanger based on the physical quantity.
Vehicle air-conditioning apparatus and clogging detection system for vehicle air-conditioning apparatus
2021-05-04
Patent
Electronic Resource
English
IPC: | F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS |
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