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1. 发明申请

WO2009084853A2 ELECTRIC OIL PRESSURE SYSTEM OF CONSTRUCTION EQUIPMENT 审中-公开
标题翻译：建筑设备电油压系统
公开(公告)号：WO2009084853A2
公开(公告)日：2009-07-09
申请号：PCT/KR2008/007647
申请日：2008-12-24
申请人： DOOSAN INFRACORE CO., LTD. , CHO, Yong Lak
发明人： CHO, Yong Lak
IPC分类号： E02F9/22
CPC分类号： E02F9/2242 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B21/14 , F15B2211/20546 , F15B2211/20576 , F15B2211/2656 , F15B2211/3133 , F15B2211/6309 , F15B2211/6313 , F15B2211/632 , F15B2211/633 , F15B2211/6333 , F15B2211/6346 , F15B2211/88
摘要： Disclosed is an electric oil pressure system of a construction equipment, the electric oil pressure system including: a regeneration circuit unit included in control valves 130 and 140 for controlling a channel of the operation oil supplied to the first and second group actuators, the regeneration circuit unit connecting oil pressure lines of each head side and each load side of the first and second group actuators so as to supply a part of operation oil, which is discharged from any one of each head side and each load side of the first and second group actuators, to the other side, when the working apparatus connected with the first and second group actuators is driven by one selected from its weight and inertia; and an actuator-used oil quantity calculation unit 110, which calculates an measurement value of oil pressure of each head side and each load side of the first and second group actuators, a measurement pressure value of oil discharged from each pump, and a measurement value of an opening ratio of each control valve so as to obtain a quantity of regenerated oil Q regen , which is again supplied to the first and second group actuators through the regeneration circuit unit, wherein the swash plate controller 1220 calculates a quantity of currently used oil Q SCyi and a quantity of oil Q pump to be discharged from the first and second pumps 70a and 70b by subtracting the quantity of regenerated oil Q regen from a quantity of required oil Q set input through operation of the joystick, thereby calculating an angle of each swash plate of the first and second pumps 70a and 70b.
摘要翻译：公开了一种施工设备的电动油压系统，电动油压系统包括：控制阀130和140中包括的用于控制供应到第一和第二组致动器的操作油的通道的再生电路单元，再生回路单元，连接第一组和第二组致动器的每个头侧和每个负载侧的油压线，以便供应从第一组和第二组的每个头侧和每个负载侧中的任一个排出的一部分操作油致动器，当与第一组和第二组致动器连接的工作装置由其重量和惯性选择的一个驱动时，另一侧; 以及执行器用油量计算单元110，其计算第一和第二组致动器的每个头侧和每个负载侧的油压的测量值，从每个泵排出的油的测量压力值和测量值每个控制阀的开启比例，以便获得再生油再生油的量，该再生油Qregen通过再生回路单元再次供给到第一和第二组致动器，其中斜盘控制器1220计算当前使用的油量QSCyi 以及通过操作操纵杆从所需要的油Qset输入量减去再生油Qregen的量从第一和第二泵70a和70b排出的油量Qpump，从而计算出每个斜盘的角度第一和第二泵70a和70b。

2. 发明申请

WO2011078580A2 HYDRAULIC CONTROL APPARATUS FOR CONSTRUCTION MACHINERY 审中-公开
标题翻译：建筑机械用液压控制装置
公开(公告)号：WO2011078580A2
公开(公告)日：2011-06-30
申请号：PCT/KR2010009209
申请日：2010-12-22
申请人： DOOSAN INFRACORE CO LTD , CHO YONG LAK
发明人： CHO YONG LAK
IPC分类号： E02F9/22 , E02F3/43 , F15B11/046 , F15B13/044
CPC分类号： E02F9/2242 , E02F3/435 , E02F9/2025 , E02F9/2292 , F15B21/082 , F15B2211/20576 , F15B2211/665 , F15B2211/6658
摘要： According to the present invention, a hydraulic control apparatus for construction machinery comprises: hydraulic pumps (11, 12); first and second control valve units which control the flow directions of working oil discharged from the hydraulic pumps (11, 12) to supply the working oil to first and second work machines, respectively, and which control the degree of opening of flow channels which interconnect the first and second work machines and the hydraulic pumps (11, 12), respectively; and a control unit (70) which controls the first and second control valve units in accordance with operating signals inputted from first and second operating units. The control unit (70) determines whether the current work mode is a general work mode or a preferential work mode, and if the mode is determined to be a general work mode, calculates a first degree of opening of a normal channel in accordance with the operating signal inputted from the first operating unit and outputs the calculated first degree of opening of a normal channel to the first control valve unit, and if the mode is determined to be a preferential work mode, calculates a second degree of opening of a normal channel in accordance with the operating signal input from the second operating unit, outputs the calculated second degree of opening of a normal channel to the second control valve unit, and outputs a control signal to the second control valve unit such that the degree of opening of the second control valve unit is smaller than the first degree of opening of a normal channel, so as to preferentially ensure the flow of the working oil being supplied to the first work machine.
摘要翻译：根据本发明，用于工程机械的液压控制装置包括：液压泵（11,12）;液压泵第一控制阀单元和第二控制阀单元，其分别控制从液压泵（11,12）排出的工作油的流动方向，以将工作油分别供给到第一作业机械和第二作业机械，并且其控制互连的流动通道第一和第二作业机械以及液压泵11,12; 以及控制单元（70），其根据从第一和第二操作单元输入的操作信号来控制第一和第二控制阀单元。控制单元（70）确定当前的工作模式是普通工作模式还是优先工作模式，并且如果模式被确定为普通工作模式，则根据该工作模式计算正常通道的第一开度并且将计算出的第一正常通道的第一开度输出到第一控制阀单元，并且如果确定模式是优先工作模式，则计算正常通道的第二开度根据从第二操作单元输入的操作信号，将计算出的第二正常通道的第二开度输出到第二控制阀单元，并且将控制信号输出到第二控制阀单元，使得第二控制阀单元小于正常通道的第一开度，以优先确保供应到第一工作马达的工作油的流动国家统计局。

3. 发明申请

WO2009084853A3 ELECTRIC OIL PRESSURE SYSTEM OF CONSTRUCTION EQUIPMENT 审中-公开
标题翻译：建筑设备电油压力系统
公开(公告)号：WO2009084853A3
公开(公告)日：2009-10-15
申请号：PCT/KR2008007647
申请日：2008-12-24
申请人： DOOSAN INFRACORE CO LTD , CHO YONG LAK
发明人： CHO YONG LAK
IPC分类号： E02F9/22
CPC分类号： E02F9/2242 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B21/14 , F15B2211/20546 , F15B2211/20576 , F15B2211/2656 , F15B2211/3133 , F15B2211/6309 , F15B2211/6313 , F15B2211/632 , F15B2211/633 , F15B2211/6333 , F15B2211/6346 , F15B2211/88
摘要： Disclosed is an electric oil pressure system of a construction equipment, the electric oil pressure system including: a regeneration circuit unit included in control valves 130 and 140 for controlling a channel of the operation oil supplied to the first and second group actuators, the regeneration circuit unit connecting oil pressure lines of each head side and each load side of the first and second group actuators so as to supply a part of operation oil, which is discharged from any one of each head side and each load side of the first and second group actuators, to the other side, when the working apparatus connected with the first and second group actuators is driven by one selected from its weight and inertia; and an actuator-used oil quantity calculation unit 110, which calculates an measurement value of oil pressure of each head side and each load side of the first and second group actuators, a measurement pressure value of oil discharged from each pump, and a measurement value of an opening ratio of each control valve so as to obtain a quantity of regenerated oil Qregen, which is again supplied to the first and second group actuators through the regeneration circuit unit, wherein the swash plate controller 1220 calculates a quantity of currently used oil QSCyi and a quantity of oil Qpump to be discharged from the first and second pumps 70a and 70b by subtracting the quantity of regenerated oil Qregen from a quantity of required oil Qset input through operation of the joystick, thereby calculating an angle of each swash plate of the first and second pumps 70a and 70b.
摘要翻译：公开了一种建筑设备的电动液压系统，该电动液压系统包括：包括在控制阀130和140中的再生回路单元，用于控制供给到第一和第二组致动器的操作油的通道，再生回路连接第一组致动器和第二组致动器的每个头侧和每个负载侧的油压管路，以便供应从第一和第二组的每个头侧和每个负载侧中的任何一个排出的操作油的一部分当与第一组致动器和第二组致动器连接的工作装置由其重量和惯性中选择的一个驱动时，向另一侧传递致动器; 以及执行器用油量运算部110，其计算第一组致动器和第二组执行器的各头侧和各负载侧的油压的测量值，从各泵排出的油的测量压力值和测量值以便获得一定量的再生油Qregen，再生油Qregen通过再生回路单元再次供给第一和第二组致动器，其中斜板控制器1220计算当前使用的油量QSCyi 以及通过从操纵杆操作输入的所需油量Qset中减去再生油Qregen的量而从第一泵70a和第二泵70b排出的油量Qpump，从而计算出从第一泵70a和第二泵70b的每个斜盘第一和第二泵70a和70b。

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