METHOD AND DEVICE FOR CONTROLLING TOOL OF EARTH-MOVING MACHINE

PROBLEM TO BE SOLVED: To increase the operability, by receiving the position of tools and operator's command signals and correcting the signals and controlling a hydraulic cylinder. SOLUTION: A joy stick position detector 220 detects the position of a joy stick control lever 219 and transmits e...

Full description

Saved in:
Bibliographic Details
Main Authors ALLEN WILLIAM E, STONE ROBERT E, DUFFY JOHN D, GARDNER CYNTHIA M, SCHIMPF JAMES E
Format Patent
LanguageEnglish
Published 10.03.1998
Edition6
Subjects
BLASTING
DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
DREDGING
FIXED CONSTRUCTIONS
FLUID-PRESSURE ACTUATORS
FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS
FOUNDATIONS
HEATING
HYDRAULIC ENGINEERING
HYDRAULICS OR PNEUMATICS IN GENERAL
LIGHTING
MECHANICAL ENGINEERING
SOIL SHIFTING
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To increase the operability, by receiving the position of tools and operator's command signals and correcting the signals and controlling a hydraulic cylinder. SOLUTION: A joy stick position detector 220 detects the position of a joy stick control lever 219 and transmits electrical actuation command signals to a controller 208. Detectors 216, 218 for tool positions detect the positions of working tools against an earth-moving machine to transmit tool position signals. The controller 208 is provided with a software having a memory of a look-up table obtaining the magnitude of a specified electric bubble signal. The controller 208 receives the tool position signal and the command signals of operators and corrects the command signals and transmits electric bubble signals with a magnitude to correspond thereto. The bubble means 202 receives electric bubble signals and gives the hydraulic fluid flows to respective hydraulic cylinders for control of the tools in response thereto. In this way, the tool speed is regulated to prevent an abrupt movement thereof.
Bibliography:Application Number: JP19970165813