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1. 发明公开

EP2022899A4 DOUBLE-ARM WORKING MACHINE 失效
标题翻译：双臂作业机械
公开(公告)号：EP2022899A4
公开(公告)日：2015-12-02
申请号：EP07706600
申请日：2007-01-11
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： ISHII AKINORI , FUJISHIMA KAZUO , TOMITA KUNITSUGU
IPC分类号： E02F3/36 , B25J9/00 , B25J19/06 , E02F3/38 , E02F3/96 , E02F9/16 , E02F9/20 , E02F9/24
CPC分类号： E02F3/384 , B25J9/0087 , E02F9/2004 , E02F9/2033 , E02F9/24 , G05B2219/39083 , G05B2219/43202 , G05B2219/45012

2. 发明公开

EP1541772A4 EXCAVATION TEACHING APPARATUS FOR CONSTRUCTION MACHINE 有权
标题翻译：考古训练设备建筑机械
公开(公告)号：EP1541772A4
公开(公告)日：2011-01-05
申请号：EP03797561
申请日：2003-09-09
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： FUJISHIMA KAZUO , ISHIBASHI HIDETO
IPC分类号： E02F9/20 , E02F9/26 , G05D1/02
CPC分类号： E02F9/205 , E02F9/2045 , E02F9/262 , E02F9/265

3. 发明公开

EP0979901A4 DEVICE FOR CONTROLLING LIMITED-AREA EXCAVATION WITH CONSTRUCTION MACHINE 失效
标题翻译： VORRICHTUNG ZUR REGULATION DER AUSHEBETIEFE EINER BAUNMASCHINE
公开(公告)号：EP0979901A4
公开(公告)日：2000-06-14
申请号：EP98928541
申请日：1998-06-18
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： WATANABE HIROSHI , FUJISHIMA KAZUO , HAGA MASAKAZU
IPC分类号： E02F3/43 , E02F9/22
CPC分类号： E02F9/2296 , E02F3/437 , E02F9/2203 , E02F9/2285
摘要： A device for controlling limited-area excavation, wherein an area where a front device (1A) can move is set in advance; a control unit (9) calculates the position and attitude of the front device (1A) based upon signals from angle sensors (8a to 8c); a limit value (a) of the speed of the fore end of a bucket is calculated so as to limit the moving speed of the front device in a direction perpendicular to the boundary of the area, when the front device is close to the boundary of the preset area where the front device is; the limit value (a) is corrected by the load pressure of an arm cylinder (3b) sensed by a pressure sensor (41a); a limit value of the component, normal to the boundary of the preset area, of the speed of the fore end of the bucket moved by a boom is found from the limit value (a); and an operation signal of the boom is so corrected that the speed of the fore end of the bucket moved by the boom does not exceed the limit value. This makes it possible to excavate the preset area up to the boundary without being affected by the hardness of the soil to be excavated by using a simple program.
摘要翻译：预先设置前置装置1A可移动的区域。控制单元9基于来自角度传感器8a-8c等的信号来计算前部装置1A的位置和姿势。当前部装置位于其边界附近的设定区域内时，控制单元9计算限制值a 铲斗前端速度使得前部装置沿与设定区域的边界垂直的方向的移动速度受到限制，然后根据由压力传感器41a检测到的手臂缸3b的负载压力来修正极限值a 。另外，从极限值a进一步计算与起动区域的边界垂直的起重臂相关铲斗前端速度的分量的极限值，然后修改动臂运行信号，使得动臂依赖铲斗前端速度将不超过上限值。因此，地面可以挖掘到设定区域的边界，而不受待挖掘的地面的硬度的影响，同时重新获得简单的程序。

4. 发明公开

EP2672127A4 POWER REGENERATION DEVICE FOR WORK MACHINE 审中-公开
标题翻译：能量回收装置的作业机械
公开(公告)号：EP2672127A4
公开(公告)日：2016-06-08
申请号：EP12741503
申请日：2012-01-20
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： FUJISHIMA KAZUO , SONODA MITSUO , HIJIKATA SEIJI
IPC分类号： F15B21/14 , E02F9/20 , E02F9/22 , F15B11/08
CPC分类号： H02K7/1853 , E02F9/2075 , E02F9/2091 , E02F9/2217 , E02F9/2285 , F15B21/14 , F15B2211/353 , F15B2211/6654 , F15B2211/761

5. 发明公开

EP2868815A4 HYDRAULIC OPERATING MACHINE 有权
标题翻译：液压操作的机器
公开(公告)号：EP2868815A4
公开(公告)日：2016-05-25
申请号：EP13809757
申请日：2013-05-10
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： HOSHINO MASATOSHI , ISHIHARA SHINJI , FUJISHIMA KAZUO
IPC分类号： E02F9/20 , B60K6/485 , B60W10/06 , B60W10/08 , B60W10/30 , E02F9/22 , F02D29/00 , F02D29/02 , F02D29/04
CPC分类号： E02F9/2075 , B60K6/485 , B60W10/06 , B60W10/08 , B60W10/30 , B60W20/00 , B60W2300/17 , E02F9/2246 , E02F9/2296 , F02D29/02 , F02D29/04 , Y02T10/6226 , Y02T10/6286
摘要： This invention is a hydraulic work machine having an electric assist motor coupled to an engine and a hydraulic pump, in the hydraulic work machine of which, a rotational speed and torque of the engine are controlled so that an operating point of the engine moves along a predetermined route for yielding a combustion state of the engine under a transient state that the engine changes in speed and torque. A target speed and torque of the engine 7 are set so that the rotational speed and torque of the engine 7 will change along a predetermined route F in a running region of the engine, respective rates of change of the target rotational speed and torque of the engine 7 are limited, and the engine 7 is controlled to yield the target engine speed. In addition, torque of the assist motor 10 is controlled to yield the target torque of the engine.

6. 发明公开

EP2716822A4 HYDRAULIC MACHINE 有权
标题翻译：液压机
公开(公告)号：EP2716822A4
公开(公告)日：2015-04-22
申请号：EP12789808
申请日：2012-05-24
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： FUJISHIMA KAZUO , KAJITA YUSUKE , SONODA MITSUO , HOSHINO MASATOSHI , NAKAYAMA AKIRA , YAMAMOTO JUNJI , BAO HE , ISHIDA SEIJI , YAMAOKA SHIRO , OKADA TAKASHI
IPC分类号： E02F9/20 , B60K6/46 , B60K17/28 , B60W10/06 , B60W10/08 , B60W20/00 , B60W30/188 , E02F9/22 , F02D31/00 , F02D41/14 , F15B11/00 , F15B21/14
CPC分类号： E02F9/2025 , B60K6/46 , B60K17/28 , B60W10/06 , B60W10/08 , B60W20/00 , B60W20/11 , B60W20/15 , B60W20/16 , B60W30/1888 , B60W2300/17 , B60W2710/0644 , B60Y2200/412 , E02F9/20 , E02F9/2075 , E02F9/2296 , F02D31/001 , F02D41/1406 , F02D2250/18 , F02D2250/36 , F02D2250/38 , F15B21/14 , F15B2211/20515 , F15B2211/20523 , F15B2211/20546 , F15B2211/6316 , F15B2211/633 , F15B2211/88 , Y02T10/6217 , Y02T10/6286
摘要： A hydraulic working machine is provided which has an assist electric motor connected to an engine and a hydraulic pump, the hydraulic working machine being structured in such a manner that the emissions of air pollutants in the exhaust gas from the engine are minimized regardless of fluctuations in the load torque of the hydraulic pump, that the increasing cost of installing an exhaust gas after-treatment device is lowered, and that the reliability of the engine is enhanced. A specific revolution speed suitable for reducing the emissions of air pollutants is stored, and an engine (7) is controlled using the specific revolution speed as a target revolution speed for the engine. The absorption torque of a hydraulic pump (6) is subjected to a high-pass filtering process whereby a high-frequency component devoid of a trend component is obtained. Target assist torque is computed from the high-frequency component, and an assist electric motor (10) is subjected to power running/generation control accordingly. A specific output torque range suitable for reducing the emissions of air pollutants is stored, and the target assist torque is corrected so that the trend component does not exceed the specific output torque range.

7. 发明公开

EP0787862A4 REGION LIMITED EXCAVATION CONTROL APPARATUS FOR CONSTRUCTION MACHINES 失效
标题翻译：控制装置用于限制疏浚区，建设
公开(公告)号：EP0787862A4
公开(公告)日：1999-09-22
申请号：EP96926606
申请日：1996-08-08
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： NAKAGAWA TAKASHI , WATANABE HIROSHI , HAGA MASAKAZU , FUJISHIMA KAZUO , EGAWA EIJI
IPC分类号： E02F3/43 , E02F9/20
CPC分类号： E02F3/437
摘要： A region in which a front unit (1A) can be moved is set in advance. When a mode switch (20) is on with the front unit within and in the vicinity of a boundary of the set region, a target speed vector for the front unit is corrected so as to reduce therefrom the components thereof in the direction approaching the boundary of the set region on the basis of a signal from which an operating signal for operating levers (4a-4c) is reduced, and, when the mode switch (20) is off, such correction is made by using the operating signal as it is. When the front unit is out of the set region, the target speed vector is corrected so that the front unit returns to the set region. This enables the region limited excavation to be carried out efficiently and smoothly, and an operator to choose of his will between an accuracy priority working mode and a speed priority working mode.

8. 发明公开

EP2722530A4 POWER REGENERATION DEVICE FOR WORK MACHINE 失效转让
标题翻译：能量回收装置的作业机械
公开(公告)号：EP2722530A4
公开(公告)日：2015-06-17
申请号：EP12800776
申请日：2012-06-13
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： HIJIKATA SEIJI , FUJISHIMA KAZUO
IPC分类号： F15B21/14 , E02F9/20 , E02F9/22
CPC分类号： E02F9/2217 , B60L11/18 , B60L2200/40 , E02F9/2091 , E02F9/2095 , E02F9/2221 , E02F9/2285 , E02F9/2292 , E02F9/2296 , E02F9/24 , E02F9/268 , F15B21/14 , Y02T10/7005

9. 发明公开

EP1126087A4 HYDRAULIC CIRCUIT CONTROL DEVICE OF CONSTRUCTION MACHINERY 有权
标题翻译： STEUERVORRICHTUNG EINES HYDRAULISCHEN KREISLAUFS EINER BAUMASCHINE
公开(公告)号：EP1126087A4
公开(公告)日：2003-04-23
申请号：EP00948253
申请日：2000-07-27
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： WATANABE HIROSHI , OHIRA SHUJI , FUJISHIMA KAZUO , OGURA HIROSHI , HAGA MASAKAZU , TOMITA SADAHISA
IPC分类号： E02F9/22 , F15B11/08 , F15B21/08 , E02F9/20
CPC分类号： E02F9/2296 , E02F9/2203 , E02F9/2228 , F15B21/087
摘要： Whether or not a valve command value Y-1 computed previously is in a neural region ±α is judged, and, if YES, a neutral dead zone valve command value computation is performed, or, if NO, a drive region valve command value computation is performed. In the latter case, a lever command value X and the preceding valve command value Y-1 are used to judge an operation status, whether at accelerating, decelerating, halting or lever reversing, maximum set speeds at accelerating, decelerating, halting and lever reversing are respectively computed from a function, ΔY=fmax1 (X), or the like, a control signal for controlling a change speed of an operation signal to below its maximum change speed is computed, and a flow rate control valve (3) is controlled by the control signal. A hydraulic drive device which controls, based on the above sequences, a flow rate control valve by an electric operation signal to control the operation of an actuator, wherein the flow rate control valve can be controlled at an optimal maximum change speed in any one of the operation statuses, accelerating, decelerating, halting and lever reversing.
摘要翻译：先前计算的阀门指令值Y-1是否在中性区域+/-α内。如果确定结果为“是”，则执行计算中断死区的阀命令值的处理。如果确定结果为“否”，则执行用于计算驾驶区的阀命令值的处理。在后一种情况下，通过使用阀指令值X和先前计算的阀指令值Y-1，确定加速度，减速/停止和杠杆反转状态中的哪一个是运行状态，最大设定根据相应的函数DELTA Y = fmax1（X）等计算加速度，减速/停止和杠杆反转状态之一的速率。然后，在抑制操作信号的变化率被保持的同时计算控制信号不超过计算的最大变化率，并且根据所计算的控制信号来控制流量控制阀3。结果，在用于控制具有电操作信号的流量控制阀以控制致动器的操作的液压驱动系统中，可以在任何加速，减速/减速运行状态下将流量控制阀控制在最佳最大变化率，停止和杠杆反转状态。

10. 发明公开

EP0790355A4 EXCAVATION REGION SETTING APPARATUS FOR CONTROLLING REGION LIMITED EXCAVATION BY CONSTRUCTION MACHINE 失效
标题翻译：疏浚区固定装置，用于控制工作区域限制挖沙建筑机械
公开(公告)号：EP0790355A4
公开(公告)日：1999-09-15
申请号：EP96926605
申请日：1996-08-08
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： WATANABE HIROSHI , HIRATA TOICHI , HAGA MASAKAZU , FUJISHIMA KAZUO
IPC分类号： E02F3/42 , E02F3/43 , E02F9/20 , E02F9/22 , E02F9/26 , G01C5/00 , G01C15/00
CPC分类号： E02F3/437 , E02F3/32 , E02F9/2285 , E02F9/2296 , E02F9/26
摘要： In an excavation region setting apparatus for controlling the region limited excavation by a construction machine, which is adapted to calculate a target speed vector Vc for use in controlling a front unit (1A), on the basis of a vehicle body (1B), restrict when the front unit approaches a boundary of a preset excavation region the moving speed thereof in the direction approaching the same boundary, by correcting the target speed vector, and move the front unit along the mentioned boundary, an outer reference 80 is set first in the horizontal direction in a position outside a hydraulic shovel body, and a depth hr between the outer reference and the boundary of the excavation region is then set by using a setter (7), for the purpose of setting the excavation region. The front unit (1A) is then moved, and, when the position of a front reference 70 agrees with that of the outer reference, an outer reference setting switch (71) is pressed. Consequently, a control unit (9) computes a height hf between a vehicle body reference point O and the outer reference, and then a height hs of a boundary surface of the excavation region with respect to the vehicle body reference point O on the basis of this depth hr by using the height hf as a correction value, and set the excavation region based on the vehicle body (1B), on the basis of which the target speed vector Vc is calculated. This enables the setting of an excavation region suitable for an excavation control operation in which computation is carried out on the basis of the vehicle reference to be done, and a highly reliable control operation to be carried out.

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