公开(公告)号：US20160047398A1

公开(公告)日：2016-02-18

申请号：US14778759

申请日：2014-03-03

Applicant: DOOSAN INFRACORE CO., LTD.

Inventor： Young Sik CHO ,  Woo Yong JUNG

IPC: F15B11/028 ,  F15B13/16 ,  F15B11/08

CPC classification number: F15B11/028 ,  E02F9/2235 ,  E02F9/2292 ,  E02F9/2296 ,  F02D29/04 ,  F04B49/065 ,  F15B11/08 ,  F15B11/17 ,  F15B13/16 ,  F15B2211/205 ,  F15B2211/20523 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/2656 ,  F15B2211/605 ,  F15B2211/633 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/6652 ,  F15B2211/6654 ,  F15B2211/6655 ,  F15B2211/6658 ,  F15B2211/75

Abstract: The present disclosure relates to an apparatus for controlling a hydraulic pump for a construction machine. The apparatus for controlling the hydraulic pump for the construction machine according to the present disclosure includes: a hydraulic pump control device configured to generate first and second pump commands for controlling first and second hydraulic pumps so that the first and second hydraulic pumps generate pump torque corresponding to a request value; and a torque controller configured to generate first and second corrected pump commands, which are the corrected first and second pump commands, by a torque inclination map generated by reflecting a dynamic characteristic of an engine, and to provide the first and second corrected pump commands to the first and second hydraulic pumps.

Abstract translation: 本公开涉及一种用于控制建筑机械的液压泵的装置。 根据本公开的用于控制建筑机械的液压泵的装置包括：液压泵控制装置，其被配置为产生用于控制第一和第二液压泵的第一和第二泵命令，使得第一和第二液压泵产生相应的泵扭矩 到请求值; 以及转矩控制器，被配置为通过反映发动机的动态特性产生的扭矩倾斜图来产生作为校正的第一和第二泵命令的第一和第二校正泵命令，并且将第一和第二校正泵命令提供给 第一和第二液压泵。

公开(公告)号：US20180209121A1

公开(公告)日：2018-07-26

申请号：US15745335

申请日：2016-07-15

Applicant: DOOSAN INFRACORE CO., LTD

Inventor： Young Shik CHO ,  Woo Yong JUNG

IPC: E02F9/22 ,  E02F9/20 ,  F15B11/17

CPC classification number: E02F9/22 ,  E02F9/20 ,  E02F9/2004 ,  E02F9/2235 ,  E02F9/2246 ,  E02F9/2271 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B2211/20576 ,  F15B2211/6651 ,  F15B2211/71

Abstract: Disclosed are a construction machine and a method of controlling a construction machine. The construction machine includes: a first pump and a second pump; an engine which provides available torque to the first pump and the second pump; a first joystick and a second joystick which control actuators operated by a working fluid discharged from the first pump and the second pump; a joystick operation amount acquiring unit which acquires operation amounts of the first joystick and the second joystick; and a control unit which adjusts a torque distribution ratio with respect to the first pump and the second pump in accordance with the operation amounts of the first joystick and the second joystick when a sum of required torque of the first pump and required torque of the second pump is higher than the available torque.

公开(公告)号：US20160032945A1

公开(公告)日：2016-02-04

申请号：US14776367

申请日：2014-03-13

Applicant: DOOSAN INFRACORE CO., LTD.

Inventor： Yong Lak CHO ,  Dal Sik JANG ,  Woo Yong JUNG ,  Min Ha AN ,  A Reum SEO ,  Sang Woo LEE ,  Yoon Seok JANG

IPC: F15B1/027 ,  F15B11/10 ,  F15B13/04 ,  F15B1/04 ,  F15B13/02

CPC classification number: F15B1/027 ,  E02F9/2217 ,  E02F9/2267 ,  E02F9/2289 ,  E02F9/2292 ,  E02F9/2296 ,  F15B1/04 ,  F15B11/10 ,  F15B11/17 ,  F15B13/027 ,  F15B13/04 ,  F15B2201/4155 ,  F15B2201/51 ,  F15B2211/20561 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/27 ,  F15B2211/40 ,  F15B2211/7053 ,  F15B2211/785

Abstract: The present disclosure relates to a hydraulic system for a construction machine, and more particularly, to a hydraulic system for a construction machine including a plurality of actuators, in which each of the actuators includes a pump/motor, is operated under a control of a corresponding pump/motor, and stores working oil in an accumulator or receives the working oil supplemented from the accumulator in accordance with a difference between a flow rate entering the actuator and a flow rate discharged from the actuator.

Abstract translation: 本发明涉及一种用于建筑机械的液压系统，更具体地，涉及一种用于建筑机械的液压系统，该系统包括多个致动器，其中每个致动器包括泵/马达，在一个控制下运行 相应的泵/马达，并且将工作油存储在蓄能器中，或者根据进入致动器的流量与从致动器排出的流量之间的差异，接收从蓄能器补充的工作油。

公开(公告)号：US20160348342A1

公开(公告)日：2016-12-01

申请号：US15108312

申请日：2014-12-24

Applicant: DOOSAN INFRACORE CO., LTD.

Inventor： Seung Bum YOO ,  Woo Yong JUNG

IPC: E02F9/22 ,  F15B13/06 ,  F15B11/17

CPC classification number: E02F9/2235 ,  E02F9/2203 ,  E02F9/2239 ,  E02F9/2242 ,  E02F9/2289 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B13/06 ,  F15B2211/20507 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20561 ,  F15B2211/20569 ,  F15B2211/20576 ,  F15B2211/6651 ,  F15B2211/76

Abstract: The present disclosure relates to a hydraulic system of construction machinery and a method of controlling the hydraulic system. The hydraulic system of construction machinery and the method of controlling the hydraulic system according to the present disclosure assign a weighted value for each operation, preliminarily distribute a (available torque that can be used) value that an engine can provide, through torque weighted values for each operation, and calculate surplus torque and deficient torque by comparing a preliminary distributable torque value to required torque. The surplus torque is provided for an operation in which torque is deemed to be deficient. Thus, the hydraulic system of construction machinery and the method of controlling the hydraulic system according to the present disclosure can sufficiently use available torque that can be used so that an operator can achieve a desired level of performance during the operation.

Abstract translation: 本公开涉及一种工程机械的液压系统和液压系统的控制方法。 施工机械的液压系统和根据本公开的液压系统的控制方法为每个操作分配加权值，通过扭矩加权值预先分配发动机可提供的（可用的可用转矩）值 通过将预分配转矩值与所需转矩进行比较来计算剩余转矩和不足转矩。 对于认为扭矩不足的操作，设置剩余扭矩。 因此，根据本公开的工程机械的液压系统和液压系统的控制方法可以充分地使用可使用的可用转矩，使得操作者能够在操作期间达到期望的性能水平。