The Design of Electronic Control System of Excavator Based On CAN-bus

Advances in electronic technology have brought numerous changes in design of construction equipment. The first wave of the changes can be represented by the proliferation of electronic devices, including microcontroller. Their applications include information display,engine control and hydraulic control, but the increasing application of electronics has the side effect which is very expensive and complicated wiring.The second wave of the changes will be focused on how to reduce these complex wires by using digital communications. Based on the design of the electronic control system of excavator with CAN-bus, two communication controllers, i e., an instrument controller and an engine-hydraulic controller were defined, and the whole system was simplified greatly.