Apparatus and method for controlling actuators of hydraulic construction equipment
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United States of America Patent
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Dec 1, 1998
Issued Date -
N/A
app pub date -
Oct 8, 1997
filing date -
Jul 2, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and a method for controlling a moving speed of each bucket and a moving speed ratio between each bucket, to be proportional to a degree of operation of each operation indicator and an operation ratio between each operation indicator, regardless of changes in various working conditions or load pressures. The apparatus receives an operation command from an input portion and converts the operation command into an operation signal, calculates a required discharge oil amount of a pump, which is proportional to the operation signal and a required moving speed of an actuator and which is proportional to the degree of operation and the operation ratio of the operation signal, adjusts the required discharge oil amount and the required moving speed based on a maximum dischargeable oil amount of the pump, subtracts a real discharge oil amount and a real moving speed from the adjusted discharge oil amount and the adjusted moving speed, and controls the discharge oil amount of the pump according to the control signal from the subtraction, and controls the moving speed of the actuator according to the subtraction control signal.
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