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    • 2. 发明公开
    • 팬회전수 제어방법
    • 风扇转速控制方法
    • KR1020060025986A
    • 2006-03-22
    • KR1020047018272
    • 2004-03-18
    • 캬타피라 재팬 가부시키가이샤
    • 후루타히데토오카모토가즈시게아다치노리유키
    • F01P7/04E02F9/00F04B49/06F04D27/00
    • F04D27/004E02F9/2095E02F9/226E02F9/24F01P7/044
    • The temperature of a cooling subject fluid is detected and when the flow rate of the cooling subject fluid passing through a cooling means (30) as in the case of the lever in an operative position is high, the fan rpm of the cooling fan (17) of the cooling means (30) is controlled to a fan target rpm (Ntf) so that the detected temperature of the cooling subject fluid is equal to a preset target temperature. In the AEC state or one touch low idle state with the lever in the neutral position, since the flow rate of the cooling subject fluid passing through the cooling means (30) decreases, the fan rpm of the cooling fan (17) is controlled to a new fan target rpm (Ntfnew) lower than the fan target rpm (Ntf). At this time, the new fan target rpm (Ntfnew) with the lever in the neutral position is calculated by multiplying the ratio of the engine rpm (Nhie) with the lever in an operative position to the engine rpm (Ncoe) with the lever in the neutral position by the fan target rpm (Ntf) at that time. Thermal strains produced in the cooling means (30) having the cooling fan (17) are reduced to improve the durability of the cooling means (30).
    • 检测冷却对象流体的温度,并且当在操作位置的杆的情况下通过冷却装置(30)的冷却对象流体的流量高时,冷却风扇(17)的风扇转速 )被控制为风扇目标转速(Ntf),使得冷却对象流体的检测温度等于预设目标温度。 在杠杆处于中立位置的AEC状态或一触式低怠速状态下,由于通过冷却装置(30)的冷却对象流体的流量降低,所以将冷却风扇(17)的风扇转速控制为 新的风扇目标转速(Ntfnew)低于风扇目标转速(Ntf)。 此时,通过将杠杆处于中立位置的新风扇目标转速(Ntfnew)通过将操作位置的发动机转速(Nhie)与杠杆的比率乘以发动机转速(Ncoe)来计算,杠杆为 当时的风扇目标转速(Ntf)的中立位置。 在具有冷却风扇(17)的冷却装置(30)中产生的热应变被减小以提高冷却装置(30)的耐久性。
    • 3. 发明授权
    • 작업 기계의 록크 방법 및 그 록크 장치
    • 작업기계의록크방법및그록크장치
    • KR100448537B1
    • 2004-09-13
    • KR1020007002031
    • 1999-05-10
    • 캬타피라 재팬 가부시키가이샤
    • 후루타히데토모리야나오유키
    • E02F9/24
    • E02F9/226E02F9/2285E02F9/24
    • Detectors (52) through (58), which are adapted to detect operation signals from operating devices for inputting actuation commands to a work machine, and a hydraulic system locking switch (47), which is adapted to command locking so as to halt the work machine or unlocking to enable the work machine to resume working, are connected to a logic circuit (51) adapted to compute the method of locking the work machine based on signals input from these components. A hydraulic system locking electromagnetic selector valve (41) adapted to maintain or release the work machine at or from the locked state is connected to the logic circuit (51). In case an unlocking command is sent in the situation where there is an outstanding operation signal input to the work machine, the logic circuit (51) maintains the work machine at the locked state until a safety check is performed. By commanding unlocking of the work machine after commanding its locking in the state where there is no outstanding operation signal input to the work machine, the work machine is released from the locked state.
    • 检测器52至58适于检测来自用于向作业机器输入致动命令的操作装置的操作信号,以及液压系统锁定开关47,其适于命令锁定以停止工作 机器或解锁以使工作机器能够恢复工作,连接到适于基于从这些部件输入的信号来计算锁定作业机器的方法的逻辑电路(51)。 在逻辑电路(51)上连接有用于将作业机械维持在锁定状态或从锁定状态解除的液压系统锁定电磁切换阀(41)。 在输入了作业机械的优异的操作信号的情况下,在发出解锁指令的情况下,逻辑电路(51)将作业机械维持在锁定状态,直到进行安全检查为止。 通过在没有输入到作业机械的未输入的操作信号的状态下指示锁定而指示作业机械的解锁,从而使作业机械从锁定状态解除。 <图像>
    • 4. 发明授权
    • 작업기의 제어방법 및 그 제어장치
    • 작업기의제어방법및그제어장치
    • KR100397516B1
    • 2003-09-13
    • KR1020007001391
    • 1999-05-10
    • 캬타피라 재팬 가부시키가이샤
    • 모리야나오유키후루타히데토마토바나부아키
    • F15B21/02
    • E02F9/2228F15B11/163F15B19/002F15B21/087F15B2211/20546F15B2211/20553F15B2211/30535F15B2211/3054F15B2211/3111F15B2211/327F15B2211/50536F15B2211/5157F15B2211/6054F15B2211/6309F15B2211/6313F15B2211/6653F15B2211/6656F15B2211/71
    • An electrohydraulic conversion valve (3a) such as a cylinder controlling control valve (3) is connected to the output side of a controller (23) for performing a control computing based on an operation electric signal from an electric joystick (12a) or the like. A control valve return pressure (PT) and a load sensing pressure (PL) are detected by first and second pressure detectors (18), (19) and the start of a hydraulic cylinder (7) is detected by a rise of the pressure difference ( DELTA P) between these pressures. The controller (23) is provided with a function generator (14a) having a standard function (F) for setting the relation between an operation electric signal and an instruction value to the electrohydraulic conversion valve (3a) and the like and with a calibration computing unit (20) for modifying the standard function (F). The calibration computing unit (20) computes a deviation ( DELTA S) between an instruction value set by the standard function (F) at the start of the cylinder and an instruction value stored at the actual start of the cylinder and adds the deviation to the standard function (F).
    • 在控制器(23)的输出侧连接有液压缸控制用控制阀(3)等电动液压转换阀(3a),根据来自电动操纵手柄(12a)等的操作电信号进行控制运算 。 通过第一和第二压力检测器(18),(19)检测控制阀返回压力(PT)和负荷检测压力(PL),并且通过压力差的升高检测液压缸(7) (DELTA P)在这些压力之间。 控制器(23)设有具有用于设定电动液压转换阀(3a)等的操作电信号和指令值之间的关系的标准函数(F)的函数发生器(14a),并且具有校准计算 单元(20)用于修改标准函数(F)。 校准计算单元(20)计算在气缸开始时由标准函数(F)设定的指令值与气缸实际开始时存储的指令值之间的偏差(ΔS),并将该偏差加到 标准功能(F)。 <图像>
    • 5. 发明授权
    • 건설기계 도난방지장치
    • 건설기계도난방지장치
    • KR100381599B1
    • 2003-05-12
    • KR1020007002632
    • 1999-06-22
    • 캬타피라 재팬 가부시키가이샤
    • 모리야나오유키푸루타히데토
    • B60R25/042B60R25/04
    • B60R25/042B60R25/00Y10T70/5889Y10T70/5925Y10T70/5934
    • A theftproofing device of construction machinery capable of securely preventing an engine from being started and also a hydraulic control device from being operated even if an engine start circuit is modified in the construction machinery equipped with the engine (2), the hydraulic control device (4), and a frame controller (6), wherein the initial state of the frame controller is set so that a fuel injection by a fuel injection device (2b) of the engine is stopped and the operation of the control devices of the hydraulic control device (4) is stopped, and a theftproofing control device (8) is installed so as to reset the initial state of the frame controller (6) with reset signals from the theftproofing control device (8).
    • 本发明提供一种能够可靠地防止发动机起动的液压控制装置,即使在具有发动机(2)的工程机械中改变发动机起动回路,也能够使液压控制装置动作, )和框架控制器(6),其中框架控制器的初始状态被设定为使得由发动机的燃料喷射装置(2b)的燃料喷射停止并且液压控制装置的控制装置的操作 (4)停止,并且安装防盗控制装置(8),以利用来自防盗控制装置(8)的复位信号来复位框架控制器(6)的初始状态。 <图像>
    • 6. 发明公开
    • 유체압 회로
    • 유체압회로
    • KR1020030010730A
    • 2003-02-05
    • KR1020027017158
    • 2002-02-12
    • 캬타피라 재팬 가부시키가이샤
    • 시마다요시유키
    • F15B21/14
    • E02F9/2217E02F9/2228E02F9/2242E02F9/2285E02F9/2292F15B11/024F15B11/17F15B21/14F15B2211/20576F15B2211/30525F15B2211/3056F15B2211/3058F15B2211/3116F15B2211/31582F15B2211/327F15B2211/6346F15B2211/6654F15B2211/78
    • 붐 실린더(6)를 외부하중(W)에 의해 작동하는 붐 하강과, 아암 실린더(26) 또는 버킷 실린더(27)를 공중연동조작할 때, 붐용 제 1 전환밸브(2)를 중립위치로 제어함과 동시에, 붐 재생밸브(13)를 개통위치로 제어한다. 이에 따라, 붐 실린더 (6)의 작동유 되돌아오는 쪽의 라인(9)으로부터 붐 재생밸브(13)를 거쳐 작동유 공급쪽의 라인(5)으로 작동유를 재생하기 때문에, 유압원(4)으로부터의 작동유를 붐 실린더(6)에 공급할 필요가 없는 만큼, 유압원(4)으로부터 아암용 제 2 전환밸브 (24) 또는 버킷용 전환밸브(25)를 거쳐 아암 실린더(26) 또는 버킷 실린더(27)로 보다 다량의 작동유를 공급할 수 있다. 아암 실린더(26) 또는 버킷 실린더(27)의 작동속도를 고속화할 수 있고, 유압 셔블의 연동조작시의 작업효율을 향상할 수 있다.
    • 为了在铲斗脱离地面的状态下同时操作斗杆液压缸(26)或铲斗液压缸(27)而通过外部负载(W)操作动臂液压缸(6)来进行动臂下降操作, (2)和再生动臂阀(13)分别被控制到中立位置和打开位置,使得液压油从位于悬臂油缸的回油侧的管路(9)再生 6)通过再生动臂阀(13)到位于供油侧的管路(5)。 因此,能够从压力油源(4)经由第二斗杆方向控制阀(24)或铲斗方向控制阀(24)向斗杆液压缸(26)或铲斗液压缸(27)供给的液压油的容积 (25)增加与未从加压油源(4)向动臂油缸(6)供给的油量相当的量。 由于根据本发明的回路能够使悬臂油缸(26)或铲斗油缸(27)更快地工作,当其液压致动器同时操作时,其提高了液压挖掘机的工作效率。 <图像>