Current interpolation system and method for electro-hydraulic proportional control system

• Main Authors: CHAI JUNFEI, ZHANG XIANGSHUAI, JIAO GUOWANG, QI XINGCHENG, LIU YUNHAO
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2023
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The invention discloses a current interpolation system and method for an electro-hydraulic proportional control system. The current interpolation system comprises a detection unit, an operation unit and an execution unit. The detection unit collects handle data and working load data, and the output end of the detection unit is connected with the input end of the arithmetic unit; the arithmetic unit calculates a plurality of handle opening values based on the handle data output by the detection unit, adjusts the width of the original hysteresis region based on the working load data output by the detection unit to generate a new hysteresis region, and finally calculates the opening value of the handle based on the handle opening values and the new hysteresis region. Calculating a control current line of the actuating mechanism to be controlled by adopting a continuous interpolation method; and the execution unit is connected with the arithmetic unit, receives a control current line of the to-be-controlled execu