An electric or hybrid endothermic traction system comprising an electric machine (2), an inverter (5), a battery pack (Batt) and a switching device (4) connected to the electric machine (2) and configured to switch the stator between a low speed configuration in which the stator winding (3) assumes a first electrical configuration and a high speed configuration in which the stator winding (3) assumes a second electrical configuration, a first electrical configuration of the stator winding (3) determines a voltage (BEMF1) caused by the rotation of the rotor, which voltage exceeds a supply voltage (Vbatt) of the battery when a predetermined threshold value ([omega] th) of the angular velocity of the rotor (2b) is reached, and a second electrical configuration of the stator winding (3) determines a voltage (BEMF2) caused by the rotation of the rotor, which voltage exceeds the supply voltage (Vbatt) of the battery when a predetermined threshold value ([omega] th) of the angular velocity of the rotor (2b) is reached, this voltage is lower than the voltage (Vbatt) of the battery pack for any angular velocity within the field of use of the electric machine (2). The switching device (4) is configured to provide switching to the stator (2a) from a low-speed configuration to a high-speed configuration when the rotor (2b) reaches a switching speed lower than or equal to a threshold value ([omega] th).

    一种电动或混动吸热牵引系统,包括电动机器(2)、逆变器(5)、电池组(Batt)和切换装置(4),该切换装置连接到电动机器(2)并且被配置成在其中定子绕组(3)采取第一电配置的低速配置与其中定子绕组(3)采取第二电配置的高速配置之间切换定子,其中,定子绕组(3)的第一电配置确定由转子的旋转所引起的电压(BEMF1),在达到转子(2b)的角速度的预定阈值(ω_th)时该电压超过电池组的供电电压(V_batt),而定子绕组(3)的第二电配置确定由转子的旋转所引起的电压(BEMF2),对于电动机器(2)的使用领域内的任何角速度而言该电压都低于电池组的电压(V_batt)。切换装置(4)被配置成当转子(2b)达到低于或等于阈值(ω_th)的切换速度时,向定子(2a)提供从低速配置到高速配置的切换。


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    Title :

    Electric or hybrid endothermic traction system and method for reconfiguring electric machine


    Additional title:

    电动或混动吸热牵引系统及用于重新配置电动机器的方法


    Contributors:

    Publication date :

    2024-11-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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