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1. 发明申请

US20130121852A1 SYSTEM FOR CONTROLLING HYDRAULIC PUMP IN CONSTRUCTION MACHINE 有权
标题翻译：建筑机械液压泵控制系统
公开(公告)号：US20130121852A1
公开(公告)日：2013-05-16
申请号：US13810824
申请日：2010-07-19
申请人： Hea-Gyoon Joung , Sang-Hee Lee , Hung-Ju Shin
发明人： Hea-Gyoon Joung , Sang-Hee Lee , Hung-Ju Shin
IPC分类号： F04B39/00
CPC分类号： F04B39/00 , E02F9/2214 , E02F9/2232 , E02F9/2235 , E02F9/2242 , E02F9/2285 , E02F9/2296 , F04B49/08 , F04B2205/05 , F15B2211/253 , F15B2211/6309 , F15B2211/6346
摘要： Disclosed is a system for controlling a hydraulic pump in a construction machine which can reduce the discharge flow of the hydraulic pump in proportion to the load pressure of the hydraulic pump to enhance operability by the driver. The present invention provides the system for controlling the hydraulic pump in the construction machine, which is characterized by detecting the discharge pressure of the hydraulic pump and the operation activity of an operation lever, and comparing the detected discharge pressure of the hydraulic pump and a predetermined pressure value, and when the detected discharge pressure exceeds the predetermined pressure value, the maximum dischargeable flow of the hydraulic pump is reduced in proportion to the difference between the detected pressure and the predetermined pressure value.
摘要翻译：公开了一种用于控制施工机械中的液压泵的系统，其能够与液压泵的负载压力成比例地减小液压泵的排出流量，从而提高驾驶员的操作性。本发明提供了一种用于控制建筑机械中的液压泵的系统，其特征在于检测液压泵的排出压力和操作杆的操作活动，并将检测到的液压泵的排出压力与预定的压力值，并且当检测到的排出压力超过预定压力值时，液压泵的最大可排放流量与检测到的压力和预定压力值之间的差成比例地减小。

2. 发明申请

US20130103270A1 FLOW CONTROL SYSTEM FOR A HYDRAULIC PUMP OF CONSTRUCTION MACHINERY 有权
标题翻译：建筑机械液压泵流量控制系统
公开(公告)号：US20130103270A1
公开(公告)日：2013-04-25
申请号：US13700980
申请日：2010-06-28
申请人： Hea-Gyoon Joung , Sang-Hee Lee , Hung-Ju Shin
发明人： Hea-Gyoon Joung , Sang-Hee Lee , Hung-Ju Shin
IPC分类号： E02F9/22
CPC分类号： E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/055 , F15B2211/6309 , F15B2211/6316
摘要： A flow control system of a hydraulic pump for a construction machine is provided, which can variably control a discharge flow rate of the hydraulic pump in accordance with load pressure generated by a hydraulic actuator such as a boom cylinder. According to the flow control system of a hydraulic pump, the discharge pressure of the hydraulic pump and the operation rate of the operation lever for the hydraulic actuators is detected, and standard load pressures of the respective hydraulic actuators are set. If the discharge pressure of the hydraulic pump is higher than the preset standard load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is proportionally reduced for the same operation rate in accordance with degrees of loads generated by the hydraulic actuators, while if the discharge pressure of the hydraulic pump is lower than the standard load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is controlled in proportion to the operation rate.
摘要翻译：提供了一种用于建筑机械的液压泵的流量控制系统，其可以根据由诸如动臂缸的液压致动器产生的负载压力可变地控制液压泵的排出流量。根据液压泵的流量控制系统，检测液压泵的排出压力和液压致动器的操作杆的操作速度，并设定各液压致动器的标准负荷压力。如果液压泵的排出压力高于液压致动器的预设标准负载压力，则液压泵的排出流量根据由液压致动器产生的负载的程度相同的运行速率成比例地减小，而如果液压泵的排出压力低于液压致动器的标准负荷压力，则液压泵的排出流量与操作速率成比例地控制。

3. 发明申请

US20130098021A1 HYDRAULIC PUMP CONTROL SYSTEM FOR CONSTRUCTION MACHINERY 有权
标题翻译：建筑机械液压泵控制系统
公开(公告)号：US20130098021A1
公开(公告)日：2013-04-25
申请号：US13700969
申请日：2010-06-24
申请人： Hung-Ju Shin , Hea-Gyoon Joung , Sang-Hee Lee
发明人： Hung-Ju Shin , Hea-Gyoon Joung , Sang-Hee Lee
IPC分类号： F04B9/10
CPC分类号： F04B9/10 , E02F9/123 , E02F9/2235 , E02F9/2253 , E02F9/2285 , E02F9/2296 , F04B27/14 , F15B11/0423 , F15B2211/20546 , F15B2211/255 , F15B2211/26 , F15B2211/6309 , F15B2211/6346 , F15B2211/6652 , F15B2211/6654 , F15B2211/6655 , F15B2211/7058 , F15B2211/851
摘要： A hydraulic pump control system provided in a construction machine such as an excavator is provided. According to the hydraulic pump control system, a loss of a flow rate is reduced by initially supplying hydraulic fluid as much as necessary from a hydraulic pump to a hydraulic motor in order to accelerate a swing movement of an upper frame against a lower traveling structure or to make an upper swing structure swing.
摘要翻译：提供了一种设置在诸如挖掘机的施工机械中的液压泵控制系统。根据液压泵控制系统，通过从液压泵向液压马达最初提供必要的液压流体来减少流量的损失，以加速上框架相对于下行进结构的摆动运动，或使上摆动摆动。

4. 发明授权

US09303636B2 System for controlling hydraulic pump in construction machine 有权
标题翻译：施工机械液压泵控制系统
公开(公告)号：US09303636B2
公开(公告)日：2016-04-05
申请号：US13810824
申请日：2010-07-19
申请人： Hea-Gyoon Joung , Sang-Hee Lee , Hung-Ju Shin
发明人： Hea-Gyoon Joung , Sang-Hee Lee , Hung-Ju Shin
IPC分类号： F16D31/02 , F04B39/00 , E02F9/22 , F04B49/08
CPC分类号： F04B39/00 , E02F9/2214 , E02F9/2232 , E02F9/2235 , E02F9/2242 , E02F9/2285 , E02F9/2296 , F04B49/08 , F04B2205/05 , F15B2211/253 , F15B2211/6309 , F15B2211/6346
摘要： Disclosed is a system for controlling a hydraulic pump in a construction machine which can reduce the discharge flow of the hydraulic pump in proportion to the load pressure of the hydraulic pump to enhance operability by the driver. The present invention provides the system for controlling the hydraulic pump in the construction machine, which is characterized by detecting the discharge pressure of the hydraulic pump and the operation activity of an operation lever, and comparing the detected discharge pressure of the hydraulic pump and a predetermined pressure value, and when the detected discharge pressure exceeds the predetermined pressure value, the maximum dischargeable flow of the hydraulic pump is reduced in proportion to the difference between the detected pressure and the predetermined pressure value.
摘要翻译：公开了一种用于控制施工机械中的液压泵的系统，其能够与液压泵的负载压力成比例地减小液压泵的排出流量，从而提高驾驶员的操作性。本发明提供了一种用于控制建筑机械中的液压泵的系统，其特征在于检测液压泵的排出压力和操作杆的操作活动，并将检测到的液压泵的排出压力与预定的压力值，并且当检测到的排出压力超过预定压力值时，液压泵的最大可排放流量与检测到的压力和预定压力值之间的差成比例地减小。

5. 发明授权

US08818651B2 Flow control system for a hydraulic pump of construction machinery 有权
标题翻译：工程机械液压泵流量控制系统
公开(公告)号：US08818651B2
公开(公告)日：2014-08-26
申请号：US13700980
申请日：2010-06-28
申请人： Hea-Gyoon Joung , Sang-Hee Lee , Hung-Ju Shin
发明人： Hea-Gyoon Joung , Sang-Hee Lee , Hung-Ju Shin
IPC分类号： G06F19/00 , F15B15/00 , F04B49/00
CPC分类号： E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/055 , F15B2211/6309 , F15B2211/6316
摘要： A flow control system for a hydraulic pump of a construction machine that can variably control a discharge flow rate of the hydraulic pump in accordance with load pressure generated by a hydraulic actuator. According to the system, the discharge pressure of the hydraulic pump and the operation rate of the operation lever for the hydraulic actuators is detected, and standard load pressures of the respective hydraulic actuators are set. If the discharge pressure of the hydraulic pump is higher than preset load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is reduced in proportion to the operation rate in accordance with degrees of loads generated by the hydraulic actuators. If the discharge pressure of the hydraulic pump is lower than the standard load pressures of the hydraulic actuators, the discharge flow rate of the hydraulic pump is controlled in proportion to the operation rate.
摘要翻译：一种用于建筑机械的液压泵的流量控制系统，其可以根据由液压致动器产生的负载压力可变地控制液压泵的排出流量。根据该系统，检测液压泵的排出压力和液压致动器的操作杆的操作速度，并且设定各个液压致动器的标准负载压力。如果液压泵的排出压力高于液压致动器的预设负载压力，则液压泵的排出流量与根据液压致动器产生的负载的程度与运行速率成比例地减小。如果液压泵的排出压力低于液压致动器的标准负荷压力，则液压泵的排出流量与操作速率成比例地控制。

6. 发明授权

US09194382B2 Hydraulic pump control system for construction machinery 有权
标题翻译：工程机械液压泵控制系统
公开(公告)号：US09194382B2
公开(公告)日：2015-11-24
申请号：US13700969
申请日：2010-06-24
申请人： Hung-Ju Shin , Hea-Gyoon Joung , Sang-Hee Lee
发明人： Hung-Ju Shin , Hea-Gyoon Joung , Sang-Hee Lee
IPC分类号： F04B9/10 , E02F9/22 , F04B27/14 , E02F9/12 , F15B11/042
CPC分类号： F04B9/10 , E02F9/123 , E02F9/2235 , E02F9/2253 , E02F9/2285 , E02F9/2296 , F04B27/14 , F15B11/0423 , F15B2211/20546 , F15B2211/255 , F15B2211/26 , F15B2211/6309 , F15B2211/6346 , F15B2211/6652 , F15B2211/6654 , F15B2211/6655 , F15B2211/7058 , F15B2211/851
摘要： A hydraulic pump control system provided in a construction machine such as an excavator is provided. According to the hydraulic pump control system, a loss of a flow rate is reduced by initially supplying hydraulic fluid as much as necessary from a hydraulic pump to a hydraulic motor in order to accelerate a swing movement of an upper frame against a lower traveling structure or to make an upper swing structure swing.
摘要翻译：提供了一种设置在诸如挖掘机的施工机械中的液压泵控制系统。根据液压泵控制系统，通过从液压泵向液压马达最初提供必要的液压流体来减少流量的损失，以加速上框架相对于下行进结构的摆动运动，或使上摆动摆动。

7. 发明申请

US20130160439A1 FLOW RATE CONTROL DEVICE FOR VARIABLE DISPLACEMENT TYPE HYDRAULIC PUMP FOR CONSTRUCTION EQUIPMENT 审中-公开
标题翻译：用于建筑设备的可变位移式液压泵的流量控制装置
公开(公告)号：US20130160439A1
公开(公告)日：2013-06-27
申请号：US13821452
申请日：2010-09-09
申请人： Sang-Hee Lee , Hea-Gyoon Joung , Hung-Ju Shin
发明人： Sang-Hee Lee , Hea-Gyoon Joung , Hung-Ju Shin
IPC分类号： F04B13/00
CPC分类号： E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F15B2211/20546 , F15B2211/255 , F15B2211/6346 , F15B2211/88
摘要： The present invention pertains to a hydraulic pressure control device of a variable displacement type hydraulic pump for construction equipment, wherein operable sections of operation systems are formed in a wide manner while the hydraulic pump discharges a relatively small flow rate compared with the operation amount of the respective operation systems in the case of complex operations, so as to improve the pressure loss and the fuel ratio of the hydraulic pump. The device includes a flow rate controller, which is preferably connected to an operation amount detecting means and a swash plate control device, and receives operation signals from the operation system of a control device that are detected by the operation amount detecting means so as to control the discharge flow rate of the hydraulic pump. In the case of the complex operations, the flow rate controller pre-determines the required flow rate of an actuator for the respective operation systems via the operation signals of the operation systems and subsequently operates the square root of the sum of the squares of the respective required flow rates so as to determine the discharge flow rate of the hydraulic pump, thereby controlling the swash plate control device.
摘要翻译：本发明涉及一种用于施工设备的可变排量型液压泵的液压控制装置，其中操作系统的可操作部分以宽的方式形成，同时液压泵与其操作量相比排出相对较小的流量在复杂操作的情况下各自的操作系统，以便提高液压泵的压力损失和燃料比。该装置包括流量控制器，其优选地连接到操作量检测装置和斜盘控制装置，并且从操作量检测装置检测到的控制装置的操作系统接收操作信号，以便控制液压泵的排放流量。在复杂操作的情况下，流量控制器经由操作系统的操作信号预先确定各个操作系统的致动器的所需流量，并且随后操作各自的操作信号的平方和的平方根以确定液压泵的排出流量，从而控制斜盘控制装置。

8. 发明申请

US20130263583A1 METHOD OF CONTROLLING THE FLOW RATE OF A VARIABLE CAPACITY HYDRAULIC PUMP FOR A CONSTRUCTION APPARATUS 有权
标题翻译：控制建筑装置可变容量液压泵流量的方法
公开(公告)号：US20130263583A1
公开(公告)日：2013-10-10
申请号：US13994857
申请日：2010-12-28
申请人： Hung-Ju Shin
发明人： Hung-Ju Shin
IPC分类号： F15B9/04
CPC分类号： F15B9/04 , E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/0423 , F15B2211/20546 , F15B2211/255 , F15B2211/6309 , F15B2211/6346 , F15B2211/6652 , F15B2211/6654 , F15B2211/6655
摘要： Disclosed is a method of controlling the flow rate of a hydraulic pump, which controls the discharge flow rate in proportion to a manipulated amount of a manipulation lever operated by a user even when the discharge pressure of the hydraulic pump is varied. The method of controlling the flow rate of a variable capacity hydraulic pump for a construction apparatus according to the present invention includes: a first step of calculating the required flow rate of the variable capacity hydraulic pump according to a manipulated amount of a manipulation lever operated by a user; a second step of calculating the maximum discharge flow rate within a range equal to or less than a preset horsepower or torque of the variable capacity hydraulic pump corresponding to the pressure detected by a discharge pressure detecting sensor; and a third step of controlling the discharge flow rate of the variable capacity hydraulic pump in proportion to a manipulated amount of the manipulation lever within a range equal to or less than the maximum discharge flow rate set in the second step.
摘要翻译：公开了一种控制液压泵的流量的方法，即使当液压泵的排出压力变化时，液压泵的流量与用户操作的操纵杆的操纵量成比例地控制排出流量。根据本发明的用于施工设备的可变容量液压泵的流量控制方法包括：第一步骤，根据由操作杆操作的操纵杆的操纵量计算可变容量液压泵的所需流量用户; 在与由排出压力检测传感器检测出的压力对应的可变容量液压泵的预设马力或扭矩以下的范围内计算最大排出流量的第二步骤; 以及在等于或小于在第二步骤中设定的最大排出流量的范围内的情况下，将可变容量液压泵的排出流量与操作杆的操作量成比例地控制的第三步骤。

9. 发明授权

US09303659B2 Method of controlling the flow rate of a variable capacity hydraulic pump for a construction apparatus 有权
标题翻译：控制施工设备的可变容量液压泵的流量的方法
公开(公告)号：US09303659B2
公开(公告)日：2016-04-05
申请号：US13994857
申请日：2010-12-28
申请人： Hung-Ju Shin
发明人： Hung-Ju Shin
IPC分类号： E02F9/22 , F15B9/04 , F15B11/042
CPC分类号： F15B9/04 , E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/0423 , F15B2211/20546 , F15B2211/255 , F15B2211/6309 , F15B2211/6346 , F15B2211/6652 , F15B2211/6654 , F15B2211/6655
摘要： Disclosed is a method of controlling the flow rate of a hydraulic pump, which controls the discharge flow rate in proportion to a manipulated amount of a manipulation lever operated by a user even when the discharge pressure of the hydraulic pump is varied. The method of controlling the flow rate of a variable capacity hydraulic pump for a construction apparatus according to the present invention includes: a first step of calculating the required flow rate of the variable capacity hydraulic pump according to a manipulated amount of a manipulation lever operated by a user; a second step of calculating the maximum discharge flow rate within a range equal to or less than a preset horsepower or torque of the variable capacity hydraulic pump corresponding to the pressure detected by a discharge pressure detecting sensor; and a third step of controlling the discharge flow rate of the variable capacity hydraulic pump in proportion to a manipulated amount of the manipulation lever within a range equal to or less than the maximum discharge flow rate set in the second step.
摘要翻译：公开了一种控制液压泵的流量的方法，即使当液压泵的排出压力变化时，液压泵的流量与用户操作的操纵杆的操纵量成比例地控制排出流量。根据本发明的用于施工设备的可变容量液压泵的流量控制方法包括：第一步骤，根据由操作杆操作的操纵杆的操纵量计算可变容量液压泵的所需流量用户; 在与由排出压力检测传感器检测出的压力对应的可变容量液压泵的预设马力或扭矩以下的范围内计算最大排出流量的第二步骤; 以及在等于或小于在第二步骤中设定的最大排出流量的范围内的情况下，将可变容量液压泵的排出流量与操作杆的操作量成比例地控制的第三步骤。

10. 发明申请

US20150219127A1 HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINERY 审中-公开
标题翻译：建筑机械液压系统
公开(公告)号：US20150219127A1
公开(公告)日：2015-08-06
申请号：US14419370
申请日：2012-08-27
申请人： Hung-Ju Shin , Byeong-Soo Kim
发明人： Hung-Ju Shin , Byeong-Soo Kim
IPC分类号： F15B21/08 , F15B13/04 , F15B13/02 , F15B13/06 , E02F9/22 , E02F9/20
CPC分类号： F15B21/08 , E02F9/2004 , E02F9/2242 , E02F9/2267 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/166 , F15B13/022 , F15B13/0402 , F15B13/06 , F15B2211/20576 , F15B2211/329 , F15B2211/355 , F15B2211/36 , F15B2211/6316 , F15B2211/781 , F15B2211/782 , Y10T137/8671
摘要： A hydraulic system for a construction machine is provided, which enables a user to set or release a preferential function when an excavation work or leveling work using an excavator is performed. The hydraulic system for a construction machine includes first and second hydraulic pumps connected to an engine; first and second hydraulic actuators connected to the first and second hydraulic pumps; main control valves (MCV) installed in flow paths between the first and second hydraulic pumps and the first and second hydraulic actuators, respectively, and having spools shifted to control a start, a stop, and a direction change of the first and second hydraulic actuators; first and second operation levers outputting operation signals in proportion to a user's operation amount; a control device limiting a flow rate that is applied to the spool of any one of the first and second hydraulic actuators that share the first and second hydraulic pumps according to a user's operation of the first or second operation lever for a preferential function; and a control unit controlling driving of the control device so as to shift to or release the preferential function according to a user's determination.
摘要翻译：提供了一种用于建筑机械的液压系统，当进行挖掘作业或使用挖掘机的调平作业时，能够使用户设定或释放优先功能。用于建筑机械的液压系统包括连接到发动机的第一和第二液压泵; 连接到第一和第二液压泵的第一和第二液压致动器; 分别安装在第一和第二液压泵以及第一和第二液压致动器之间的流动路径中的主控制阀（MCV），并且具有换档的阀芯，以控制第一和第二液压致动器的起动，停止和方向改变 ; 第一和第二操作杆与用户的操作量成比例地输出操作信号; 控制装置，用于根据用户对第一或第二操作杆的优先功能的操作来限制施加到第一和第二液压致动器中的任何一个的卷轴的流量，共享第一和第二液压泵; 以及控制单元，控制所述控制装置的驱动，以便根据用户的确定转移到或者释放所述优先功能。

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