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    EMERGENCY ENGINE RPM CONTROL APPARATUS FOR HEAVY CONSTRUCTION EQUIPMENT
    1.
    发明公开
    EMERGENCY ENGINE RPM CONTROL APPARATUS FOR HEAVY CONSTRUCTION EQUIPMENT 有权
    不锈钢宝石

    公开(公告)号：EP2390425A2

    公开(公告)日：2011-11-30

    申请号：EP09835260.2

    申请日：2009-12-22

    申请人： Doosan Infracore Co., Ltd.

    发明人： PARK, Duck Woo ,  YUN, Hong Cheol

    IPC分类号： E02F9/20 ,  E02F9/24

    CPC分类号： E02F9/24 ,  E02F9/2062 ,  E02F9/2246

    摘要： The present invention relates to an apparatus for contingency controlling an engine rotational speed of a heavy construction equipment, which is capable of contingency controlling the speed of an engine when a controller of the heavy construction equipment such as an excavator does not operate normally. The apparatus for contingency controlling an engine rotational speed including a machine control unit generating a driving signal to control an operation of the engine by transferring a control value received from a control dial to an engine control unit may include: an instrument panel electrically connected with the engine control unit and allowing an operator to select and control a desired engine rotational speed because a control algorithm for the engine rotational speed is made into a database; and a connection switch electrically connecting the instrument panel and the engine control unit when the control dial or the machine control unit does not operate normally.

    摘要翻译： 本发明涉及一种用于应急控制重型施工设备的发动机转速的装置，当重型施工设备如挖掘机的控制器不能正常工作时，能够随时控制发动机的转速。 包括通过将从控制转盘接收到的控制值传送到发动机控制单元而产生驱动信号以控制发动机的运转的机器控制单元的发动机转速的意外控制装置可以包括：仪表板，其与 发动机控制单元，并且允许操作者选择和控制期望的发动机转速，因为用于发动机转速的控制算法被制成数据库; 以及当控制盘或机器控制单元不能正常工作时，将仪表板与发动机控制单元电连接的连接开关。

    CONSTRUCTION MACHINE SAFETY APPARATUS AND CONTROLLING METHOD
    4.
    发明公开
    CONSTRUCTION MACHINE SAFETY APPARATUS AND CONTROLLING METHOD 审中-公开

    公开(公告)号：EP3578721A1

    公开(公告)日：2019-12-11

    申请号：EP18750672.0

    申请日：2018-02-12

    申请人： Doosan Infracore Co., Ltd.

    发明人： LIM, Young Sup ,  PARK, Duck Woo ,  PARK, Jun Hong

    IPC分类号： E02F9/20 ,  E02F9/22 ,  E02F9/24

    摘要： The present invention is directed to a method of controlling a safety apparatus of a construction machine that includes a key switch, a parking switch, an FNR switch, a pilot cutoff solenoid valve, a pilot cutoff switch and a vehicle controller, the method including: applying a power to the construction machine when a key switch operation of a worker is input; receiving operation signals of the parking switch, the FNR switch, and the pilot cutoff switch; determining whether operation states of the parking switch, the FNR switch, and the pilot cutoff switch satisfy predetermined conditions; and controlling the construction machine to be available for the start-up when the predetermined conditions are satisfied. The predetermined conditions are that the parking switch is operated to be on so that a parking brake is operated, the FNR switch is operated to select a neutral so that a traveling direction of the construction machine is in a neutral state, and the pilot cutoff switch is operated to be on so that the construction machine is in a pilot cutoff state. According to the safety apparatus of the construction machine and a controlling method thereof, safety accidents that may occur during the start-up of an engine or during the operation of the construction machine can be effectively prevented.

    POWER CONTROL APPARATUS AND POWER CONTROL METHOD FOR CONSTRUCTION MACHINERY
    6.
    发明公开
    POWER CONTROL APPARATUS AND POWER CONTROL METHOD FOR CONSTRUCTION MACHINERY 审中-公开
    LEISTUNGSREGLER UND LEI​​STUNGSREGELUNGSVERFAHRENFÜREINE BAUMASCHINE

    公开(公告)号：EP2518222A2

    公开(公告)日：2012-10-31

    申请号：EP10839775.3

    申请日：2010-12-22

    申请人： Doosan Infracore Co., Ltd.

    发明人： SOHN, Won Sun ,  PARK, Duck Woo ,  BANG, Jae Seok

    IPC分类号： E02F9/22 ,  F02D29/04 ,  F15B11/028

    CPC分类号： E02F9/2235 ,  E02F9/2066 ,  E02F9/2246 ,  E02F9/2296 ,  F02D29/04 ,  F15B2211/20523 ,  F15B2211/26 ,  F15B2211/6309 ,  F15B2211/633

    摘要： An aspect of the present invention provides a power control apparatus of a construction machine, including: an engine (10) connected to a hydraulic pump (20) to drive the hydraulic pump (20); and a controller (60) for calculating an engine load ratio defined as a ratio of a load torque of the engine for an engine maximum torque calculated from an input engine target RPM, and calculating an engine RPM command value according to the engine load ratio such that the engine is driven at the target RPM to output the calculated engine load ratio and engine RPM command value to the engine.
    Another aspect of the present invention provides a power control apparatus of a construction machine for controlling a hydraulic pump (20) driven by an engine (10), including: a horse power regulating unit (30) for varying a swash plate angle of the hydraulic pump (20) to vary a required horse power of the hydraulic pump (20); a pressure sensor (50) for detecting a load pressure (Pd) of a working fluid discharged from the hydraulic pump (20); and a controller (60) for calculating a target pump requiring horse power from the load pressure (Pd) detected by the pressure sensor (50), and controlling a horse power regulating unit (30) such that a required horse power of the hydraulic pump (20) gradually approaches the target pump requiring horse power for a preset time (Δt).

    摘要翻译： 本发明的一个方面提供一种施工机械的动力控制装置，包括：连接到液压泵（20）以驱动液压泵（20）的发动机（10）; 以及控制器（60），用于计算根据从输入的发动机目标RPM计算的用于发动机最大扭矩的发动机的负载转矩的比率的发动机负载比，并且根据发动机的负载比计算发动机RPM指令值， 发动机在目标RPM下被驱动以将计算出的发动机负载率和发动机RPM命令值输出到发动机。 本发明的另一方面提供一种用于控制由发动机（10）驱动的液压泵（20）的施工机械的动力控制装置，包括：马力调节单元（30），用于改变液压的斜盘角度 泵（20）以改变所述液压泵（20）的所需马力; 用于检测从液压泵（20）排出的工作流体的负载压力（Pd）的压力传感器（50）。 以及控制器（60），用于从由所述压力传感器（50）检测到的负载压力（Pd）计算需要马力的目标泵，并且控制马力调节单元（30），使得所述液压泵 （20）逐渐接近需要马力的目标泵预设时间（t）。