Intelligent programmable axial plunger pump controller and control method

Abstract

The invention provides an intelligent programmable axial plunger pump controller and a control method, and belongs to the field of intelligent hydraulic elements. The controller comprises a sensor group, a control panel, and an ARM chip, an RISC-V chip, a signal acquisition module, a filtering module, a charge amplifier, a power amplifier, a mode selection module, a display module and a cloud storage module which are installed on the control panel; and the control panel is further provided with a plurality of external interfaces. The magnitude of flow in a variable piston cavity of a hydraulic pump and the swing angle of a swash plate can be controlled by the ARM chip; automatic compound control over the pressure, flow and power of the axial plunger pump is achieved; meanwhile, the pressure, flow and power of the axial plunger pump can be controlled by detecting signals such as the outlet pressure of the hydraulic pump, the swing angle of the swash plate and vibration on a pump shell; the state of the hydraulic pump is monitored and recognized based on the RISC-V chip, common faults of the hydraulic pump are judged, and judgment results are transmitted to the ARM chip, thus implementing predictive maintenance of the hydraulic pump.

Description

technical field [0001] The invention relates to the field of intelligent hydraulic components, and in particular develops an intelligent programmable axial piston pump controller and a control method for hydraulic pumps. Background technique [0002] In recent years, with the gradual development of the hydraulic industry, as a hydraulic power component, the demand for hydraulic variable pumps has gradually developed in the direction of diversification and high performance. The traditional hydraulic pump adopts a mechanical variable structure, the structure is complex, and there are problems such as insufficient precision of constant power control. When a hydraulic pump fails, it is usually a gradual process, and the failure will not be damaged until the fault accumulates to a certain extent. If the hydraulic pump can be shut down to replace components when it is damaged, it will save costs and improve engineering efficiency. At the same time, with the rapid development of c...

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Problems solved by technology

[0003] In order to overcome the defects of complex structure, long response time and low precision of traditional hydraulic pump mechanical variable mechanism, the present invention develops an intelligent programmable axial piston pump controller and control method based on ARM chip and RISC-V chip. The dual-chip design method realizes high-precision control of the hydraulic pump variable mechanism (the swash plate inside the pump) based on the ARM chip, and realizes the monitoring and fault diagnosis of the hydraulic pump’s working condition based on the RISC-V chip, and realizes the flow, pressure, and power of the hydraulic pump. Composite control of

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