METHOD AND APPARATUS FOR CONTROLLING MAIN CONTROL VALVE OF CONSTRUCTION MACHINE

摘要

In a method for controlling a main control valve of a construction machine, a first joystick signal for controlling a first control valve unit or a second joystick signal for controlling a second control value unit is received from one joystick. It is determined whether a joystick signal for controlling another control valve unit during operation of one control valve unit among the first and second control valve units is input. When the joystick signal for controlling another control valve unit during operation of one control valve unit of the first and second control valve units has been input, a weight value is applied to a valve operation start threshold value for a joystick displacement and then the valve operation start threshold value is upward configured. When the input joystick displacement value has satisfied the upward configured valve operation start threshold value, a valve displacement value corresponding to the input joystick displacement value is calculated to output the valve displacement value.