To estimate a blowout temperature with good accuracy without provision of a temperature sensor at an air outlet.SOLUTION: A heater core state is determined on the basis of an engine rotational frequency and an estimation blowout temperature. In the heater core state when an engine is warmed up, the blowout temperature is estimated by a water temperature base value on the basis of a cooling water temperature, an evaporator post temperature, a fan wind volume, and an air mix door opening. In the heater core state when the engine is cold-stopped, the blowout temperature is estimated on the basis of the evaporator post temperature. In the heater core transient state when the engine is stopped, the blowout temperature is estimated on the basis of a temperature such that the evaporator post temperature is smoothly changed. In the heater core transient state when the engine is started, the blowout temperature is estimated so as to follow change in the cooling water temperature.SELECTED DRAWING: Figure 3

    【課題】吹出口の温度センサを設けることなく、精度よく吹出温度を推定する。【解決手段】エンジンの回転数と推定吹出温度に基づいてヒータコア状態が判定される。エンジンが暖気運転しているときのヒータコア状態では、冷却水温度、エバポレータ後温度、ファン風量、エアミックスドア開度に基づく水温ベース値により、吹出温度が推定される。エンジンが冷機停止状態であるときのヒータコア状態では、エバポレータ後温度に基づいて吹出温度が推定される。エンジンが停止したときのヒータコア過渡状態では、エバポレータ後温度の変化を滑らかにした温度に基づいて吹出温度が推定される。エンジンが始動したときのヒータコア過渡状態では、冷却水温度の変化に追従するように吹出温度が推定される。【選択図】図3


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    Title :

    AIR-CONDITIONING CONTROLLER


    Additional title:

    空調制御装置


    Contributors:

    Publication date :

    2019-10-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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



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