EMERGENCY OPERATING SYSTEM OF CONSTRUCTION MACHINERY

摘要

The present invention relates to an emergency operating system for a construction machinery comprising: a joystick to which an operation command for construction machinery is inputted; a controller which generates an operation signal corresponding to the operation command from the joystick; a hydraulic device arranged in each part of the construction machinery; an electro-hydraulic control valve which operates the hydraulic device by the operation signal from the controller; and an operation part providing an emergency operation function to transfer the operation signal to the controller when the controller judges that a process of transferring the operation signal of the joystick is abnormal.