Digitalized proportioning valve controller

Abstract

The invention discloses a digitalized proportioning valve controller, which comprises an input preprocessing circuit (6), a feedback circuit (7), a power-driven circuit (3), a core control circuit (1), a parameter storage (2), a communication control circuit (4), a status display circuit (5) and a proportioning valve driving control module (8). Except for the proportioning valve driving control module (8), the rest circuits are respectively connected with printed conductors of the core control circuit (1). An external input instruction is converted by the input preprocessing circuit (6) and then is transmitted to the core control circuit (1), and the proportioning valve driving control module (8) adjusts a drive current output from the power-driven circuit (3) according to values of the parameter storage (2), the feedback circuit (7) and the input preprocessing circuit (6). The controller realizes digitalized multilevel processing, avoids accumulated errors of the multilevel processing, and improves the product generality and environmental adaptability by virtue of configurable Parameters..

Description

Technical field [0001] The invention relates to a proportional valve controller, in particular to a digital proportional valve controller. Background technique [0002] At present, the proportional valve control technology is widely used in the fields of special vehicles and construction machinery. The proportional valve controllers used are mainly analog proportional valve controllers based on analog operational amplifier circuits. Its composition generally includes input preprocessing circuit, ramp generator, Gain regulator, feedback circuit, waveform generator, power drive circuit and other multi-stage amplifiers. In use, a proportional controller is generally used to control a proportional valve. The proportional valve controller uses analog voltage or current as input commands. It also needs to manually adjust multiple parameters such as up and down time, initial current, maximum current, etc., for the spool solenoid sensitive flutter frequency parameters and even some prod...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a digital proportional valve controller to solve the problems of the complexity of parameter adjustment of the proportional valve controller, the inaccuracy of manual adjustment, the incomplete parameter coverage, and the universality and interchangeability of equipment from different manufacturers.

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