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    CONTROL DEVICE FOR WORK MACHINE ON CONSTRUCTION VEHICLE AND CONTROL METHOD
    1.
    发明公开
    CONTROL DEVICE FOR WORK MACHINE ON CONSTRUCTION VEHICLE AND CONTROL METHOD 有权
    控制装置的工程机械在施工车辆及其控制方法

    公开(公告)号：EP2505722A1

    公开(公告)日：2012-10-03

    申请号：EP11756160.5

    申请日：2011-03-10

    Applicant: Komatsu, Ltd.

    Inventor： NUMAZAKI Masatsugu ,  SATOH Isamu ,  KOHSUGE Satoshi ,  SAWADA Kyouhei ,  SAITO Yoshiaki ,  KAWAYANAGI Jun ,  WADA Minoru

    IPC: E02F3/43 ,  F15B9/08 ,  F15B11/02

    CPC classification number: E02F9/2207 ,  E02F3/431 ,  E02F9/2012 ,  F15B11/048 ,  F15B2211/20546 ,  F15B2211/6309 ,  F15B2211/6336 ,  F15B2211/6346 ,  F15B2211/6656 ,  F15B2211/6657 ,  F15B2211/755 ,  F15B2211/7656 ,  F15B2211/853 ,  F15B2211/8606

    Abstract: Disclosed is a control device for a work machine on a construction vehicle such that a bucket cylinder is stopped at a target position, with high accuracy achieved in a bucket cylinder length, and with shock held down to a low level. A bucket cylinder length detection section (101) references a cylinder length detection table (102) on the basis of a boom angle and a bell crank angle, thereby detecting a bucket cylinder length. A bucket attitude control section (103) controls the bucket cylinder length so that a target position will be reached. Feedback control is performed until a set value which is set short of a target value is reached. After the bucket cylinder length reaches the set value, open loop control is performed until the target value is reached.

    Abstract translation: 本发明公开了一种用于作业机械上的工程车辆搜索的控制装置没有铲斗缸停止在目标位置上，高精度地在一铲斗缸长度来实现，并与冲击保持下降到较低的水平。 铲斗缸长度检测部（101）的动臂角度的基础和钟形曲柄角上引用的圆筒长度检测表（102），从而检测铲斗缸长度。 水桶姿态控制部（103）控制所述铲斗缸长度所以没有目标位置将达到。 执行反馈控制，直到达到设定值全部被设定短期目标价值。 铲斗缸长度达到设定值后，开环控制进行，直至达到目标值。

    WHEEL LOADER AND WHEEL LOADER ENGINE CONTROL METHOD
    4.
    发明公开
    WHEEL LOADER AND WHEEL LOADER ENGINE CONTROL METHOD 有权
    Loader和发动机控制方法，装载机

    公开(公告)号：EP2868901A1

    公开(公告)日：2015-05-06

    申请号：EP13822128.8

    申请日：2013-05-29

    Applicant: Komatsu Ltd.

    Inventor： IMAIZUMI Masaaki ,  WADA Minoru

    IPC: F02D29/00 ,  E02F9/20 ,  F02D29/04

    CPC classification number: E02F9/2246 ,  E02F3/283 ,  E02F9/2066 ,  F02D29/02 ,  F02D29/04 ,  F02D41/0085 ,  F02D2200/10 ,  F02D2700/07

    Abstract: A wheel loader includes detectors (46 to 50) and a controller (10). The detectors (46 to 50) include at least an accelerator pedal angle detector (46) that detects an accelerator displacement. The controller (10) includes: a state judging unit (110) that judges from a detection result provided by the detectors whether or not the wheel loader is in an excavation operation; and a torque-curve selector (120). The torque-curve selector (120) selects one excavation torque curve (136) when the wheel loader is judged to be in the excavation operation by the state judging unit (110), and selects one of two or more non-excavation torque curves (137 to 139) depending on the accelerator displacement when the wheel loader is judged not to be in the excavation operation.

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