To provide a drive torque estimation device for a compressor capable of estimating a drive torque of the compressor with high accuracy without requiring a number of sensors and even without preparing a map in a system having a refrigeration cycle using an externally controlled variable capacity type compressor which is driven by a drive source mounted on a vehicle.SOLUTION: A drive torque of a compressor with a refrigeration cycle is calculated by one polynomial with a high-pressure-side refrigerant pressure from the compressor to an expansion device, a temperature of an evaporator, a speed of rotation of the compressor and a control current value to be supplied for adjusting discharge capacitance defined as parameters. In the calculation of the drive torque, the need of selection from condition discriminants or map data is eliminated, and a quadratic expression of the high-pressure-side refrigerant pressure, the temperature of the evaporator, the speed of rotation of the compressor and the control current value is used for the polynomial for calculating the drive torque.SELECTED DRAWING: Figure 4

    【課題】車両に搭載された駆動源により駆動される外部制御式の可変容量型圧縮機を用いた冷凍サイクルを有するシステムにおいて、多くのセンサを必要とせず、また、マップを用意しなくても高い精度で圧縮機の駆動トルクを推定することが可能な圧縮機の駆動トルク推定装置を提供する。【解決手段】冷凍サイクルの圧縮機から膨張装置までの高圧側冷媒圧力と、蒸発器の温度と、圧縮機の回転数と、吐出容量を調整するために供給される制御電流値とを変数とした1つの多項式により圧縮機の駆動トルクを演算する。駆動トルクの演算において、条件判別式やマップデータからの選択を不要とし、駆動トルクを演算する多項式は、高圧側冷媒圧力、蒸発器の温度、圧縮機の回転数、制御電流値の2次式を用いる。【選択図】 図4


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    Titel :

    DRIVE TORQUE ESTIMATION DEVICE FOR COMPRESSOR


    Weitere Titelangaben:

    圧縮機の駆動トルク推定装置


    Beteiligte:

    Erscheinungsdatum :

    08.10.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / 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 / F16K VALVES , Ventile



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