The invention relates to a method for controlling the rotational speed (S) of an electric motor-driven air compressor (2) which supplies compressed air to a pneumatic operating system (5) of a vehicle (1), characterized by the following preliminary steps: a) determining the efficiency (e) of the air compressor (2) for different values (Si) of the rotational speed (S) of the air compressor (2); the efficiency (e) of the air compressor (2) corresponds to the ratio of the pneumatic power (P1) generated by the air compressor (2) to the power (P0) given to the air compressor (2); b) determining, among the different values (Si), one or more specific values (S2, S4) for which the efficiency (e) of the air compressor (2) is higher than a threshold (emin) and/or comparatively higher than those determined for those values (S1, S3) close to the specific values (S2, S4); the preliminary steps a) and b) are preferably carried out only once; and characterized by the following further repeating steps: c) determining the air consumption rate of the pneumatic operating system (5) receiving compressed air from the air compressor (2); d) determining a minimum rotational speed (Smin) of the air compressor (2) to obtain an air generation rate of the air compressor (2) equal to or substantially equal to the determined air consumption rate; e) determining whether the specific value or one of the specific values (S2, S4) is greater than the determined minimum rotational speed (Smin); f) if no specific value is greater than the determined minimum rotational speed (Smin), controlling the rotational speed (S) of the air compressor (2) on the basis of the minimum rotational speed (Smin); g) if only one specific value (S4) is greater than the determined minimum rotational speed (Smin), controlling the rotational speed (S) of the air compressor (2) on the basis of said only one specific value (S4); h) if the plurality of specific values (S2, S4) are greater than the determined minimum rotational speed (Smin), determining a specific value (S2) of the plurality of specific values (S2, S4) having the optimal efficiency, and controlling the rotational speed (S) of the air compressor (2) on the basis of the specific value (S2) having the optimal efficiency.

    一种用于控制电动马达驱动的空气压缩机(2)的转速(S)的方法,该空气压缩机向车辆(1)的气动操作系统(5)供应压缩空气,其特征在于如下初步步骤:a)为空气压缩机(2)的转速(S)的不同值(Si)确定空气压缩机(2)的效率(e),空气压缩机(2)的效率(e)对应于由空气压缩机(2)产生的气动功率(P1)与给予空气压缩机(2)的功率(P0)之比;b)在所述不同值(Si)中确定一个或若干个特定值(S2、S4),对于所述值,空气压缩机(2)的效率(e)高于阈值(emin)和/或相比较地高于为那些接近所述特定值(S2、S4)的值(S1、S3)所确定的那些效率;初步步骤a)和b)优选地仅实施一次;并且特征在于如下进一步的重复步骤:c)确定从空气压缩机(2)接收压缩空气的气动操作系统(5)的空气消耗速率;d)确定空气压缩机(2)的最小转速(Smin)以获得等于或基本等于所确定的空气消耗速率的空气压缩机(2)的空气产生速率;e)确定特定值或者特定值(S2、S4)之一是否大于所确定的最小转速(Smin);f)如果没有特定值大于所确定的最小转速(Smin),则基于所述最小转速(Smin)来控制空气压缩机(2)的转速(S);g)如果仅一个特定值(S4)大于所确定的最小转速(Smin),则基于所述仅一个特定值(S4)来控制空气压缩机(2)的转速(S);h)如果多个特定值(S2、S4)大于所确定的最小转速(Smin),则确定所述多个特定值(S2、S4)中具有最佳效率的特定值(S2),并基于具有最佳效率的所述特定值(S2)来控制空气压缩机(2)的转速(S)。


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    Titel :

    Method for controlling rotational speed of electric motor-driven compressor and control unit suitable for carrying out method


    Weitere Titelangaben:

    用于控制电动马达驱动的压缩机的转速的方法和适于执行该方法的控制单元


    Beteiligte:
    BEBON HUGO (Autor:in) / PRODOM NATHAN (Autor:in)

    Erscheinungsdatum :

    2022-04-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS






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