Autopilot system 8 Vehicle guidance setup
Calibration steps
1. At the Vehicle Calibration screen, select Steering Gain and tap OK. The Autopilot Steering Gain
Calibration screen displays.
2. Tap Run Slew Test. A warning message displays.
3.
Tap Next.
WARNING – The wheels can move abruptly during the Proportional Steering Gain procedure while the
Autopilot system tests the hydraulic response to the steering commands. These sudden movements can
cause collisions with nearby obstacles or cause injury to occupants of the vehicle. Be prepared for sudden
wheel movements.
4. Tap Next in the next two screens that display.
5. Test various gain settings while you monitor the vehicle performance and the values for Slew
Time and Overshoot for the Turn Left phase.
a. Adjust the New Gain (if required).
b. Turn the front wheels completely to the right to begin the test. (The test is for the stop-to-
stop position.)
c.
Tap Turn Left. Both turn buttons are unavailable while the wheels slew.
Note – The optimum gain setting has short slew time (short millisecond reading) and low
overshoot percentage (less than 5–8%).
6. Repeat Step 5 with Turn Right. Both turn buttons are unavailable while the wheels slew.
7. When you locate the best gain value, either:
ll Tap OK to save the value in the Autopilot controller memory.
l Tap Cancel to restart the calibration procedure.
180 FM-1000 Integrated Display User Guide Version 9.25, Revision B
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