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AssigneeZoomlion Heavy Industry Science and Technology Co., Ltd.
InventorsWei Wang, Ling Fu, Ye Yuan, Junhua Zhang, Yanbin Liu, Li Yin, Lingjuan She
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A flow distribution control method for a hydraulic system, the hydraulic system comprising N loops L1-LN. The flow distribution control method comprises the following steps: S1: comparing pressures P1-PN at an inlet of an actuator in each loop of the hydraulic system; S2: according to the comparison result, determining a loop Lp1 which requires flow compensation; and S3: conducting flow compensation on the loop Lp1 according to the theoretical flow of the loop Lp1 and an actual flow in the loop Lp1 which flows into the actuator, wherein the number of loops in the loop Lp1 is less than or equal to N. Also disclosed are a flow distribution control device and a flow distribution control apparatus for the hydraulic system, the hydraulic system and a non-transitory computer-readable medium. An electric control pressure pump and a flow supplementing valve are employed to replace a constant pressure difference valve, and the flow of all branches may be supplemented, thereby avoiding the phenomenon of unequal flow distribution being generated due to flow distribution characteristics of a pressure compensation system being affected by the overflow area of the constant pressure difference valve. The foregoing employs a flow compensation scheme, has a simple structure, is insensitive to pollution, and has low investment costs.
A flow distribution control method for a hydraulic system, wherein the hydraulic system comprises N loops (L1-LN), wherein the N loops (L1-LN) are connected in parallel, each loop includes an actuator, a main throttle valve and a flow supplementing valve which are connected with the actuator, the main throttle valve and the flow supplementing valve are connected in parallel, and N is greater than or equal to 2, and the method comprises the following steps:
A flow distribution control apparatus for a hydraulic system, wherein the hydraulic system comprises N loops (L1-LN), wherein the N loops (L1-LN) are connected in parallel, each loop includes an actuator, a main throttle valve and a flow supplementing valve which are connected with the actuator, the main throttle valve and the flow supplementing valve are connected in parallel, and N is greater than or equal to 2, and the apparatus comprises one or more processors and a non-transitory computer-readable storage medium storing program instructions, and when executing the program instructions, the one or more processors are configured to:
A hydraulic system, comprising:
Dependencies are inferred from the claim text.