The embodiment of the invention provides an electric drive double-axle, a differential control method and device between double-axle shafts of the electric drive double-axle and an automobile, and relates to the field of axles. The double-axle inter-axle differential control method can be used for electrically driving double axles, and the electrically driven double axles comprise an intermediate axle motor and a rear axle motor; the double-axle inter-axle differential control method comprises the following steps: acquiring a first rotating speed of an intermediate axle motor and a second rotating speed of a rear axle motor; according to the first rotating speed and the second rotating speed, calculating the rotating speed difference between the intermediate axle motor and the rear axle motor; and controlling torque distribution of the intermediate axle motor and the rear axle motor according to the rotating speed difference. According to the embodiment of the invention, the torque distribution of the middle-rear axle can be adjusted to achieve the purpose of slip limiting of axle difference.

    本发明实施例提供一种电驱动双桥及其双桥轴间差速控制方法、装置和汽车,涉及车桥领域。该双桥轴间差速控制方法可以用于电驱动双桥,电驱动双桥包括中桥电机和后桥电机;该双桥轴间差速控制方法包括:获取中桥电机的第一转速、以及后桥电机的第二转速;根据第一转速和第二转速,计算中桥电机和后桥电机的转速差异;根据转速差异,控制中桥电机和后桥电机的扭矩分配。本发明实施例可以调整中后桥的扭矩分配,达到轴差限滑的目的。


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    Title :

    Electric drive double-axle, differential control method and device between double-axle shafts of electric drive double-axle and automobile


    Additional title:

    电驱动双桥及其双桥轴间差速控制方法、装置和汽车


    Contributors:
    HU SHENGLI (author) / ZHENG MENGYAO (author) / SHI YAQING (author) / GAO DE'AN (author) / FU ZUFA (author)

    Publication date :

    2021-04-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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