Method for controlling pressure of central channel, processor and engineering machinery
A central channel and construction machinery technology, applied in the field of processors and construction machinery, methods, control center channel pressure, can solve problems such as center channel damage
Active Publication Date: 2022-01-28
ZOOMLION HEAVY IND CO LTD
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[0003] The purpose of the embodiments of the present application is to provide a method for controlling the pressure of the central channel, a processor and construction machinery, so as to solve the problem of damage to the central channel or the insertion and withdrawal of pins caused by overpressure or insufficient pressure in the central channel
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[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the The specific implementation manners described are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0039] figure 1 A schematic flowchart of a method for controlling central channel pressure according to an embodiment of the present application is schematically shown. Such as figure 1 As shown, in an embodiment of...
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The embodiment of the invention provides a method for controlling the pressure of a central channel, a processor and engineering machinery. The method is applied to the engineering machinery and comprises the following steps of determining the telescopic state of an oil cylinder of the engineering machinery, determining a pressure value of the central channel, and adjusting the oil filling speed of the central channel according to the telescopic state and the pressure value, so that the real-time pressure of the central channel is controlled to be within the target range. According to the technical scheme, firstly, the telescopic state of an engineering machinery oil cylinder and the pressure value of a central channel are determined; and the oil filling speed of the central channel is adjusted according to the telescopic state and the pressure value, so that the real-time pressure of the central channel is controlled to be within the target range. The real-time pressure of the central channel is controlled to be within the target range through the center channel, pressure protection is carried out on the stretching and retracting process and the pin inserting and pulling process of the oil cylinder, the problem that due to overpressure or insufficient pressure, the central channel is damaged or the pin is difficult to insert and pull is solved, and the problem that the oil cylinder is damaged due to failure and overshoot of the overflow valve is solved.
Description
technical field [0001] The present application relates to the technical field of construction machinery control, in particular to a method for controlling the pressure of a central channel, a processor and construction machinery. Background technique [0002] In the technical field of central channel pressure control, in the traditional center channel protection measures with overflow valve, the traditional central channel pressure does not participate in the control, which may cause the central channel pressure to be too high, and the central channel is not filled during the boom process. Oil, or filling with a fixed percentage of oil, can easily lead to untimely oil filling or insufficient pressure, and there will be a delay in subsequent pin removal, resulting in poor expansion and contraction. Contents of the invention [0003] The purpose of the embodiments of the present application is to provide a method for controlling the pressure of the central channel, a process...
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IPC IPC(8): F15B21/08F15B11/042F15B13/02F15B19/00F15B20/00
CPCF15B21/087F15B11/042F15B13/021F15B19/00F15B20/00
Inventor 赵焜煜刘永赞田炯明胡廷江
Owner ZOOMLION HEAVY IND CO LTD