The invention discloses a traction control device and method for a four-wheel drive electric vehicle. When the driving wheel rotates, the driving force is controlled to restrain the driving wheel from rotating and ensure the starting performance and the acceleration performance. The device includes: a first motor that supplies a driving torque to a main driving wheel of the four-wheel drive electric vehicle; a second motor that supplies drive torque to auxiliary drive wheels of the four-wheel drive electric vehicle; a separator provided on an axle of the auxiliary drive wheel, the separator selectively connecting the auxiliary drive wheel to the second motor to control power transmission between the auxiliary drive wheel and the second motor; and a traction controller that controls the first motor and the second motor, in which, in a state where the auxiliary drive wheel and the second motor are connected to each other through the separator, the traction controller reduces a drive torque of the main drive wheel when the main drive wheel turns during traveling of the four-wheel drive electric vehicle, and the drive torque of the auxiliary drive wheel is increased in proportion to the reduction amount of the drive torque of the main drive wheel.

    本申请公开一种四轮驱动电动车辆的牵引控制装置和方法。当驱动轮打转时,控制驱动力以遏制驱动轮打转并确保启动性能和加速性能。该装置包括:第一马达,将驱动扭矩供应到四轮驱动电动车辆的主驱动轮;第二马达,将驱动扭矩供应到四轮驱动电动车辆的辅助驱动轮;分离器,设置在辅助驱动轮的车轴上,分离器选择性地将辅助驱动轮连接到第二马达,以控制辅助驱动轮和第二马达之间的动力传递;以及牵引控制器,控制第一马达和第二马达,其中在辅助驱动轮和第二马达通过分离器彼此连接的状态下,当在四轮驱动电动车辆行驶期间主驱动轮打转时,牵引控制器减小主驱动轮的驱动扭矩,并且与主驱动轮的驱动扭矩的减小量成比例地增加辅助驱动轮的驱动扭矩。


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    Title :

    TRACTION CONTROL DEVICE AND METHOD FOR FOUR-WHEEL DRIVE ELECTRIC VEHICLE


    Additional title:

    四轮驱动电动车辆的牵引控制装置和方法


    Contributors:

    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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