ROTATION-TYPE WORKING MACHINE
    8.
    发明公开
    ROTATION-TYPE WORKING MACHINE 审中-公开
    ROTIERENDE ARBEITSMASCHINE

    公开(公告)号:EP2672023A1

    公开(公告)日:2013-12-11

    申请号:EP11857828.5

    申请日:2011-12-28

    IPC分类号: E02F9/20 E02F9/22 H02J7/00

    摘要: A slewing-type working machine is capable of preventing a electric storage device from being overcharged while obtaining an appropriate slewing braking force by efficiently regenerating slewing energy during slewing braking. The slewing-type working machine includes: a electric storage device 16 capable of being charged with regenerative electric power for regenerating slewing energy of a upper slewing body while functioning as an electric power source for an electric slewing motor 18; a electric storage device 16 and electric storage device controller 22 detecting whether the electric storage device is under a normal condition with sufficient capacity to regenerate the slewing energy or under an abnormal condition without sufficient capacity; and control means 17 controlling a velocity of the electric slewing motor 18 based on a result of detection by the electric storage device 16 and electric storage device controller 22, wherein the control means 17 performs a velocity limiting control for limiting a maximum velocity of the electric slewing motor 18 when the electric storage device 16 is under the abnormal condition.

    摘要翻译: 回转式作业机械能够通过在回转制动期间有效地再生回转能量来获得适当的回转制动力,从而防止蓄电装置的过充电。 回转式作业机械包括:蓄电装置16,其能够充当用于再生上部回转体的回转能量的再生电力,同时用作电动回转电动机18的电源; 电力存储装置16和蓄电装置控制器22,检测蓄电装置是否处于正常状态,具有足够的容量来再生回转能量或在没有足够容量的异常状态下; 以及控制装置17,其基于由蓄电装置16和蓄电装置控制器22的检测结果来控制电动回转电动机18的速度,其中,控制装置17执行用于限制电动回转电动机18的最大速度的速度限制控制 当蓄电装置16处于异常状态时,回转马达18。