Theory of Operation

Active Implement Guidance allows machine and implement to be independently steered onto a common track. Active Implement Guidance synchronizes with AutoTrac™ to guide the implement on the same generated path as machine. Active Implement Guidance utilizes Application Controller 1100 to calculate the implement position regarding an AB Line. Implement Control Mode applies specific implement design to position calculation. Application Controller 1100 commands the implement hydraulic steering mechanism to actuate using a hydraulic control until the implement has reached a desired position.

Implement Positioning Control Mode Options

Third-party steering systems are available depending on type, make, and model of implement. There are two available implement positioning control modes within Active Implement Guidance. Select mode that best fits the implement design and positioning mechanism.

• Implement Shifter is a control mode for implements with hydraulic hitches or implements with a steering motion parallel to rear machine axle. Application Controller 1100 only uses implement global positioning system (GPS) data for calculations and commands. It does not use or require feedback sensor data.
• Implement Steering is a control mode that uses implement receiver GPS data and feedback data from an implement steering mechanism potentiometer or Hall effect sensor. Based on implement performance, operator is required to adjust guidance and steering sensitivity through the display. Application Controller 1100 uses GPS and implement feedback for calculations and commands. Calibration of potentiometer or Hall effect sensor is required during setup.

Hydraulic Control Options

• Selective Control Valve (SCV) Control is used when machine is equipped with electronically controlled SCVs. Application Controller 1100 sends a signal voltage to the machine hydraulic controller to command SCV hydraulic flow to the implement steering mechanism until desired implement position is achieved. Calibration of SCV thresholds through display is required at setup and any time hydraulic system is altered. Due to normal variations in SCVs, each machine has its own unique SCV signal voltage threshold values. Hydraulic systems that do not regulate return hydraulic flow require a counterbalance valve to maintain a system return pressure for consistent performance.
• External Valve Control is used when electronically controlled SCVs are not utilized. Application Controller 1100 sends a signal voltage to an external valve that controls the amount of hydraulic flow to the implement steering mechanism until desired implement position is achieved. Hydraulic supply and return oil are routed through the external valve, which does not require a counterbalance valve.