Control system of hydraulic excavator expansion machine tool and control method thereof

The invention discloses a control system for an expansion machine tool of a hydraulic excavator, which comprises a complete machine controller, an expansion machine tool control box, a control handle, a display, a GPS module, an electromagnetic valve and a machine tool, the expansion machine tool control box is electrically connected with the complete machine controller, the control handle and the electromagnetic valve, and the electromagnetic valve controls the machine tool to act. The whole machine controller is connected with the displayer, the GPS module and the expansion machine tool control box through a CAN bus to share data so as to monitor and control the working state of the machine tool expansion system in real time and protect the system, and the whole machine controller is connected with a hydraulic system of the hydraulic excavator to achieve convenient and fast installation of the machine tool. The safety and stability of system operation are improved, a fault detection mechanism is established