Patent ID: 9347763
Filing Date: 2016-05-24
CPC Classification: E02F,F15B,G01B,G01D

Claim Text:
1. A hydraulic cylinder stroke operation diagnosis assisting device comprising: movable portions that are sequentially supported by a vehicle body in a rotatable manner; a hydraulic cylinder that is disposed between the vehicle body and each movable portion or between the movable portions so as to support the movable portions in a rotatable manner; a stroke sensor that is disposed in the hydraulic cylinder so as to measure a stroke length of the hydraulic cylinder; a reset sensor that measures a reference reset point in which a value of the stroke length measured by the stroke sensor is reset; a stroke end detection unit that detects a stroke end position of the hydraulic cylinder; a calibration unit that calibrates the measured value of the stroke length when the reference reset point and/or the stroke end position are detected; and a monitor that displays at least the value of the stroke length measured by the stroke sensor and a calibration state by the calibration unit on a screen, wherein the monitor displays a correction value of the measured value of the stroke length calculated by the calibration unit.