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1. 发明授权

EP3255215B1 HYDRAULIC PUMP CONTROL APPARATUS FOR CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREOF 有权
公开(公告)号：EP3255215B1
公开(公告)日：2019-06-19
申请号：EP15877116.2
申请日：2015-01-09
申请人： Volvo Construction Equipment AB
发明人： JO, Sung-Yong , PARK, Hyung-Seok , LEE, Jae-Hoon
IPC分类号： E02F9/22 , E02F9/20

2. 发明公开

EP2878830A1 HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE 审中-公开
标题翻译：建筑机械液压系统
公开(公告)号：EP2878830A1
公开(公告)日：2015-06-03
申请号：EP12881750.9
申请日：2012-07-27
申请人： Volvo Construction Equipment AB
发明人： BAE, Sang-Ki , LEE, Jae-Hoon
IPC分类号： F15B13/042 , E02F9/22 , F15B11/028
CPC分类号： F15B20/007 , E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/0423 , F15B15/202 , F15B2211/20546 , F15B2211/40507 , F15B2211/41563 , F15B2211/50518 , F15B2211/5157 , F15B2211/6306 , F15B2211/6309 , F15B2211/6652
摘要： A hydraulic system provided with a relief valve for a construction machine is disclosed, which can reduce a discharge flow rate of a hydraulic pump when a relief valve is operated. The hydraulic system for a construction machine includes a variable displacement hydraulic pump connected to an engine, an attachment operation device outputting an operation signal in proportion to an operation amount by an operator, an attachment actuator connected to the hydraulic pump to be driven by an operation of the attachment operation device, a control valve installed in a flow path between the hydraulic pump and the attachment actuator and shifted to control a start, a stop, and a direction change of the attachment actuator, an orifice installed in a flow path branched from a discharge flow path of the hydraulic pump, a relief valve installed on a downstream side of the orifice in the flow path, and a controller outputting a control signal to a flow control valve of the hydraulic pump so as to reduce a discharge flow rate of the hydraulic pump when a difference between pressures before and after the orifice exceeds a predetermined value.
摘要翻译：公开了一种具有用于工程机械的安全阀的液压系统，其可以在安全阀被操作时减小液压泵的排放流量。工程机械的液压系统包括：与发动机连接的可变容量型液压泵;输出与操作员的操作量成比例的操作信号的安装操作装置;与液压泵连接并由操作驱动的安装致动器安装在所述液压泵和所述附件致动器之间的流路中并且被移位以控制所述附件致动器的启动，停止和方向改变的控制阀;安装在流路中的节流孔，液压泵的排出流路，安装在流路的节流孔的下游侧的安全阀，以及向液压泵的流量控制阀输出控制信号的控制器，以减小液压泵的排出流量当孔口前后的压力之间的差值超过预定值时，检测液压泵。

3. 发明公开

EP2660479A1 HYDRAULIC PUMP FOR CONSTRUCTION MACHINERY 有权
标题翻译：液压泵建筑机械
公开(公告)号：EP2660479A1
公开(公告)日：2013-11-06
申请号：EP10861409.0
申请日：2010-12-27
申请人： Volvo Construction Equipment AB
发明人： BAE, Sang-Ki , LEE, Jae-Hoon , JO, Sung-Yong
IPC分类号： F15B13/02 , E02F9/22 , F15B13/044
CPC分类号： F15B13/022 , E02F9/2242 , E02F9/2285 , E02F9/2292 , F15B11/17 , F15B13/06 , F15B2211/20538 , F15B2211/20576 , F15B2211/265 , F15B2211/45
摘要： Disclosed is a hydraulic pump for construction machinery for controlling to inhibit one-way driving when compound-operating two-way driving and work devices, such as a boom, to enhance operation efficiency. The hydraulic system for the construction machinery of the present invention provides the hydraulic system comprising: an operation device for driving and an operation lever for the work devices; a left driving motor which connects to a first hydraulic pump; a first control valve which is installed on the discharge flow path of the first hydraulic pump; a right driving motor which is connected to a second hydraulic pump; a hydraulic actuator which is connected to the first hydraulic pump and the second hydraulic pump; a second control valve which is installed on the discharge flow path of the first hydraulic pump or the second hydraulic pump; a third control valve which is installed on a flow path that branches from the discharge flow path of the second flow path; a first bypass valve which is connected to the upstream portion of the discharge flow path of the first hydraulic pump; a second bypass valve which is connected to the upstream portion of the discharge flow path of the second hydraulic pump; a confluence valve which is installed on a flow path which connects in parallel the discharge paths of the first and second hydraulic pumps; and a controller for controlling the opening of the first and second bypass valves and the confluence valve according to an operation signal that is input from the operation device for driving and the operation lever for the work device.

4. 发明授权

EP2660479B1 HYDRAULIC PUMP FOR CONSTRUCTION MACHINERY 有权
标题翻译：液压泵建筑机械
公开(公告)号：EP2660479B1
公开(公告)日：2017-02-22
申请号：EP10861409.0
申请日：2010-12-27
申请人： Volvo Construction Equipment AB
发明人： BAE, Sang-Ki , LEE, Jae-Hoon , JO, Sung-Yong
IPC分类号： F15B13/02 , E02F9/22 , F15B13/044 , F15B11/17 , F15B13/06
CPC分类号： F15B13/022 , E02F9/2242 , E02F9/2285 , E02F9/2292 , F15B11/17 , F15B13/06 , F15B2211/20538 , F15B2211/20576 , F15B2211/265 , F15B2211/45

5. 发明公开

EP3128387A1 CONTROL DEVICE FOR CONFLUENCE FLOW RATE OF WORKING DEVICE FOR CONSTRUCTION MACHINERY AND CONTROL METHOD THEREFOR 审中-公开
标题翻译：控制装置的工作装置，建设及其控制方法的涌入FLOW RATE
公开(公告)号：EP3128387A1
公开(公告)日：2017-02-08
申请号：EP14888190.7
申请日：2014-03-31
申请人： Volvo Construction Equipment AB
发明人： LEE, Jae-Hoon , JOUNG, Hea-Gyoon , LEE, Sang-Hee
IPC分类号： G05D7/06
CPC分类号： E02F9/2228 , E02F9/2004 , E02F9/2267 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B13/06 , F15B2211/20546 , F15B2211/20576 , F15B2211/255 , F15B2211/27 , F15B2211/30595 , F15B2211/7142
摘要： Disclosed are a control device for confluence flow rate of a working device and a control method therefor, the control device being capable of minutely operating a working device when a flow rate supplied to the working device is merged or blocked. Provided is a control device for confluence flow rate of a working device for construction machinery according to the present invention, the control device comprising: first and second hydraulic pumps and a pilot pump; first and second hydraulic operating levers; first and second working devices operated by operating oil supplied from the first and second hydraulic pumps; a control valve for the first working device, installed on a supply path between the first hydraulic pump and the first working device; a control valve for the second working device, installed on a supply path between the second hydraulic pump and the second working device; a confluence valve installed on the supply path upstream of the control valve for the second working device; a first proportional control valve installed in a pilot line between the pilot pump and the confluence valve; and a controller for calculating, as electrical signals, pilot pressures applied to the control valves for first and second working devices in proportion to the operation amount of the first and second hydraulic operating levers and thus applying the operated electrical signal to the first proportional control valve.
摘要翻译：公开的是用于作业装置的合流流量及其控制方法，所述控制装置能够操作微小作业装置在供给到工作装置的流率被合并或阻塞的控制装置。提供了一种用于对建筑机械gemäß在本发明工作装置的合流流量的控制装置，所述控制装置包括：第一和第二液压泵以及先导泵; 第一和第二液压操作杆; 通过从第一和第二液压泵提供工作油操作的第一和第二工作装置; 用于第一工作装置，安装在第一液压泵和第一工作装置之间的供给通路上的控制阀; 用于第二工作装置，安装在第二液压泵和第二工作装置之间的供给通路上的控制阀; 安装的第二工作装置的控制阀的上游的供应路径上的合流阀; 安装在先导泵和所述合流阀之间的导频线的第一比例控制阀; 和用于计算，作为电信号，先导压力应用到用于第一和第二工作装置的控制阀正比于第一和第二液压操作杆的操作量，从而将所述操作电信号到第一比例控制阀的控制器，

6. 发明公开

EP3255215A1 HYDRAULIC PUMP CONTROL APPARATUS FOR CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREOF 有权
标题翻译：施工设备的液压泵控制装置及其控制方法
公开(公告)号：EP3255215A1
公开(公告)日：2017-12-13
申请号：EP15877116.2
申请日：2015-01-09
申请人： Volvo Construction Equipment AB
发明人： JO, Sung-Yong , PARK, Hyung-Seok , LEE, Jae-Hoon
IPC分类号： E02F9/20 , E02F9/22
CPC分类号： E02F9/2232 , E02F9/20 , E02F9/22 , E02F9/2235 , E02F9/2285 , E02F9/2292 , F15B2211/30555 , F15B2211/30565 , F15B2211/428 , F15B2211/6316
摘要： Disclosed is a hydraulic pump control apparatus and method for using the maximum working horse power of an engine. The provided hydraulic pump control apparatus for construction equipment, according to the present invention, comprises: a first hydraulic pump; a first hydraulic actuator driven by the hydraulic oil of the first hydraulic pump; a first control valve installed on the fluid channel of the first hydraulic pump; a second hydraulic pump connected to a power take-off apparatus of an engine; a second hydraulic actuator driven by the hydraulic oil of the second hydraulic pump; a second control valve installed on the fluid channel of the second hydraulic pump; a pressure sensor that detects the pressure of the second hydraulic pump; a regulator that controls the amount of oil discharged from the first hydraulic pump; and a controller that computes a horse power value using the detected pressure value of the second hydraulic pump and the amount of oil discharged from the second hydraulic pump and inputs a control signal to the regulator to discharge an amount of oil that corresponds to the difference between the maximum working horse power value of the engine and the computed horse power value of the second hydraulic pump.
摘要翻译：公开了一种用于使用发动机的最大工作马力的液压泵控制装置和方法。所提供的用于施工设备的液压泵控制装置，根据本发明包括：第一液压泵; 由第一液压泵的液压油驱动的第一液压致动器; 安装在第一液压泵的流体通道上的第一控制阀; 连接到发动机的动力输出装置的第二液压泵; 由第二液压泵的液压油驱动的第二液压致动器; 安装在第二液压泵的流体通道上的第二控制阀; 检测第二液压泵的压力的压力传感器; 控制从第一液压泵排出的油量的调节器; 以及控制器，其使用所检测到的第二液压泵的压力值和从第二液压泵排出的油量来计算马力值，并向调节器输入控制信号以排出对应于发动机的最大工作马力值和第二液压泵的计算马力值。

7. 发明公开

EP2840261A1 HYDRAULIC SYSTEM FOR CONSTRUCTION EQUIPMENT 有权
标题翻译：液压系统建筑机械
公开(公告)号：EP2840261A1
公开(公告)日：2015-02-25
申请号：EP12874523.9
申请日：2012-04-17
申请人： Volvo Construction Equipment AB
发明人： BAE, Sang-Ki , LEE, Jae-Hoon
IPC分类号： F15B13/02 , E02F9/22 , G05D16/08 , G05G9/047
CPC分类号： F15B11/055 , E02F9/123 , E02F9/2228 , E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/165 , F15B2211/20546 , F15B2211/25 , F15B2211/253 , F15B2211/605 , F15B2211/6309 , F15B2211/6313 , F15B2211/6316 , F15B2211/65 , F15B2211/651 , F15B2211/6652 , F15B2211/7058 , F15B2211/7135 , F15B2211/78
摘要： A hydraulic system for a construction machine having a pressure compensation valve is disclosed, which improves operability when a combined operation of a swing device and an attachment is performed. The hydraulic system includes a hydraulic pump, attachment and swing operation devices, an attachment actuator and a swing motor connected to the hydraulic pump, a first control valve controlling hydraulic fluid being supplied to the actuator, a second control valve controlling hydraulic fluid being supplied to the swing motor, a check valve installed on a flow path for detecting load pressures of the actuator to take a maximum pressure of the load pressures, a first pressure compensation valve having an opening amount that is controlled by a difference between the maximum load sensing pressure and the pressure of a discharge flow path of the first control valve, a second pressure compensation valve having an opening amount that is controlled by a difference between the maximum load sensing pressure and the pressure of the discharge flow path of the second control valve, a maximum load pressure sensor detecting the pressure of a maximum load sensing pressure line, and a control unit controlling a discharge flow rate of the hydraulic pump, wherein the system is configured so that the swing load pressure is not connected to the first pressure compensation valve on the attachment side when a combined operation of the swing device and the attachment is performed.

8. 发明授权

EP3133211B1 DRIVE CONTROL DEVICE FOR A CONSTRUCTION MACHINE 有权
公开(公告)号：EP3133211B1
公开(公告)日：2020-08-19
申请号：EP14889539.4
申请日：2014-04-15
申请人： Volvo Construction Equipment AB
发明人： JOUNG, Hea-Gyoon , LEE, Jae-Hoon , LEE, Sang-Hee
IPC分类号： E02F9/20 , E02F9/22 , F15B11/16 , F15B11/17 , F15B13/06 , F15B21/00

9. 发明公开

EP3284869A1 HYDRAULIC APPARATUS OF CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREFOR 审中-公开
标题翻译：施工设备的液压装置及其控制方法
公开(公告)号：EP3284869A1
公开(公告)日：2018-02-21
申请号：EP15889257.0
申请日：2015-04-13
申请人： Volvo Construction Equipment AB
发明人： PARK, Hyung-Seok , LEE, Jae-Hoon , LEE, Sang-Hee
IPC分类号： E02F9/22 , E02F9/14
CPC分类号： E02F9/14 , E02F9/2037 , E02F9/22 , E02F9/2228 , E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F02D29/04 , F15B13/021
摘要： Disclosed are a hydraulic apparatus of construction equipment for increasing a fluid amount supplied to a small chamber of a boom cylinder in a jack-up operation and a control method therefor. The hydraulic apparatus of construction equipment includes: a variable displacement hydraulic pump; a boom cylinder driven by a hydraulic fluid of the hydraulic pump; a boom manipulation lever; a boom control valve controlling a flow direction of the hydraulic fluid supplied to the boom cylinder; a first pressure sensor detecting a pilot pressure applied to the boom control valve; a second pressure sensor detecting a pressure of the hydraulic fluid supplied to the boom cylinder; and a controller increasing a fluid amount supplied to a small chamber of the boom cylinder by a preset amount when a pressure value of the hydraulic fluid supplied to the small chamber is equal to or greater than a preset value.
摘要翻译：本发明公开了一种施工设备的液压装置及其控制方法，所述施工装置用于增加向起重臂缸的小室供应的流体量。建筑设备的液压设备包括：可变排量液压泵; 由液压泵的液压流体驱动的动臂缸; 大臂操纵杆; 控制供给到动臂油缸的液压流体的流动方向的动臂控制阀; 检测施加在动臂控制阀上的先导压力的第一压力传感器; 第二压力传感器，其检测供给到动臂油缸的液压流体的压力; 以及控制器，当供应到所述小室的所述液压流体的压力值等于或大于预设值时，将供应到所述动臂缸的小室的流体量增加预设量。

10. 发明公开

EP3133211A1 DRIVE CONTROL DEVICE FOR CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREFOR 有权
标题翻译： ANTRIEBSSTEUERUNGSVORRICHTUNGFÜREINE BAUMASCHINE UND STEUERUNGSVERFAHRENDAFÜR
公开(公告)号：EP3133211A1
公开(公告)日：2017-02-22
申请号：EP14889539.4
申请日：2014-04-15
申请人： Volvo Construction Equipment AB
发明人： JOUNG, Hea-Gyoon , LEE, Jae-Hoon , LEE, Sang-Hee
IPC分类号： E02F9/20
CPC分类号： E02F9/2242 , E02F9/2232 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/166 , F15B11/17 , F15B13/06 , F15B21/008 , F15B2211/20576 , F15B2211/30595 , F15B2211/40507 , F15B2211/41509 , F15B2211/7135 , F15B2211/7142 , F15B2211/8606
摘要： Disclosed is a drive control device for the construction equipment capable of reducing shock generation and smoothly operating a work device when the work device is operated during the driving, which comprises; a first and second hydraulic pumps and a pilot pump, a first work device and a first drive motor operated by a hydraulic oil of the first hydraulic pump, a second work device and a second drive motor operated by a hydraulic oil of the second hydraulic pump, a first drive control valve and a first work device control valve that are provided on the supply path of the first hydraulic pump, a second drive control valve and a second work device control valve that are provided on the supply path of the second hydraulic pump, a linear drive control valve that is provided at the upper side of the supply path of the second hydraulic pump, a parallel path having an inlet branched and connected to the upper side of the supply path of the second hydraulic pump and an outlet connected to the inlet port of the second work device control valve, a branch path having an inlet branched and connected to a predetermined position of the parallel path and an outlet branched and connected to a path between the linear drive control valve and the second drive control valve, a fixed orifice provided on the branch path, and a first ratio control valve provided on a path between the pilot pump and the linear drive control valve.
摘要翻译：公开了一种用于施工设备的驱动控制装置，其能够在行驶期间操作工作装置时减少产生冲击并平滑地操作作业装置，该装置包括：第一和第二液压泵和先导泵，第一工作装置和由第一液压泵的液压油操作的第一驱动马达，第二作业装置和由第二液压泵的液压油操作的第二驱动马达，设置在第一液压泵的供给路径上的第一驱动控制阀和第一作业装置控制阀，第二驱动控制阀和第二作业装置控制阀，其设置在第二液压泵的供给路径上设置在所述第二液压泵的供给路径的上侧的线性驱动控制阀，具有分支并连接到所述第二液压泵的供给路径的上侧的入口的并列路径，第二工作装置控制阀的入口，具有分支并连接到并行路径的预定位置的入口的分支路径和分支并连接到t 线性驱动控制阀和第二驱动控制阀，设置在分支路径上的固定孔，以及设置在先导泵和直线驱动控制阀之间的路径上的第一比率控制阀。

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