公开(公告)号：EP2615311A1

公开(公告)日：2013-07-17

申请号：EP10857020.1

申请日：2010-09-09

申请人： Volvo Construction Equipment AB

发明人： LEE, Sang-Hee ,  JOUNG, Hea-Gyoon ,  SHIN, Hung-Ju

IPC分类号： F15B13/043 ,  F15B13/02 ,  E02F9/22 ,  F15B21/08

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建筑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所需的流量，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。