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公开(公告)号：US20170009424A1
公开(公告)日：2017-01-12
申请号：US15120559
申请日：2015-04-14
CPC分类号： E02F3/422 , E02F3/425 , E02F9/2221 , E02F9/2235 , E02F9/2242 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B13/06 , F15B2211/20576 , F15B2211/255 , F15B2211/265 , F15B2211/3059 , F15B2211/30595 , F15B2211/6652 , F15B2211/6654 , F15B2211/7051 , F15B2211/7135 , F15B2211/7142
摘要： An object of the present invention is to provide a hydraulic control system for a work machine that is capable of reducing the loss caused by flow division while reducing a decrease in the speed of a hydraulic actuator due to a combined operation. The hydraulic control system for a work machine includes a first hydraulic actuator, one hydraulic pump, a second hydraulic actuator, and another hydraulic pump. The hydraulic control system further includes operating instruction detection means and pump flow control means. The operating instruction detection means detects that operating instructions are issued to the first hydraulic actuator and the second hydraulic actuator. The pump flow control means individually adjusts the delivery flow rate of the one hydraulic pump and the another hydraulic pump in accordance with operation amounts designated by the operating instructions for the first and second hydraulic actuators. When the first and second hydraulic actuators are simultaneously operated, the pump flow control means increases the delivery flow rate of the one hydraulic pump to a higher rate than when the first hydraulic actuator is operated and the second hydraulic actuator is not operated.
摘要翻译： 本发明的目的是提供一种用于作业机械的液压控制系统，其能够减少由于分流而引起的损失，同时减少了由于组合操作导致的液压致动器的速度的降低。 用于作业机械的液压控制系统包括第一液压致动器，一个液压泵，第二液压致动器和另一个液压泵。 液压控制系统还包括操作指令检测装置和泵流量控制装置。 操作指示检测装置检测到向第一液压致动器和第二液压致动器发出操作指令。 泵流量控制装置根据由第一和第二液压致动器的操作说明书指定的操作量单独地调节一个液压泵和另一个液压泵的输送流量。 当第一和第二液压致动器同时操作时，泵流量控制装置将一个液压泵的输送流量增加到比第一液压致动器被操作并且第二液压致动器不被操作时更高的速率。
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