Patent ID: 7140830

Claim:
An electronic control system for a machine having a boom assembly and an implement assembly connected to the boom assembly, the control system comprising: a microprocessor having an input and generating first and second output signals; a boom position sensor disposed on the boom assembly and connected to send a boom position input signal to the microprocessor, wherein the microprocessor is connected to receive the boom position input signal and generates at least one of the first output signal and the second output signal, thereby controlling a position of the implement assembly relative to the boom assembly; a first electrohydraulic valve connected to receive the first output signal from the microprocessor, wherein the first electrohydraulic valve is connected to position the boom assembly in response to the first output signal; a second electrohydraulic valve connected to receive the second output signal from the microprocessor, wherein the second electrohydraulic valve is connected to position the implement assembly in response to the second output signal; a right hand stick implement control sensor disposed to sense a position of a right hand control; a left hand stick boom control sensor disposed to sense a position of a left hand control; a right foot pedal implement control sensor disposed to sense a position of a right foot pedal control; a left foot pedal boom control sensor disposed to sense a position of a left foot pedal control, where each control sensor is connected to send electronic signals to the microprocessor; and a hand/foot controls selector switch connected to send a first enabling signal to the microprocessor, wherein the first enabling signal enables the microprocessor (a) to generate first and second output signals in response to electronic signals received from the right hand stick implement control sensor and the left hand stick boom control sensor, and (b) but not to generate first and second output signals in response to electronic signals received from the right foot pedal implement control sensor and the left foot pedal boom control sensor.