Creating an Adaptive Curve Track
Adaptive curve track allows the operator to record a manually driven curved path.
After the initial pass is recorded, each additional pass is generated from the previous pass to ensure that steering errors are not propagated through the entire field. Generated passes are not identical copies of the original pass. Curvature of the pass changes to maintain pass-to-pass accuracy. When necessary, the operator can change the curve path anywhere in field by simply steering the machine off the propagated path.
The operator can manually drive on the generated guidance lines using parallel tracking, or engage AutoTrac once the initial pass is recorded and the propagated path is displayed.
If a curve recording session is stopped, the line does not project in front of the machine and the operator can only use AutoTrac on available lines from the previous recording sessions. Ending a recording session saves all recorded curve segments within the session as a single track.
Additional curve segments can be added to the existing adaptive curve track when editing a guidance track.
Recording Session - Using AutoTrac on projected or recorded lines is possible while in a recording session. While in a recording session, a parallel path is projected when a machine is within 0.5 to 1.5 of track spacing. If the machine is within the black lines and in line with the end point of the previous recorded line, a line is projected as shown:
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Recorded Track |
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0.5 and 1.5 Track Spacing |
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Projected Track |
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Tracks can be recorded manually by pressing the record button, or automatically while using AutoTrac. Change the curve recording trigger in Guidance Settings to change the recording method. If AutoTrac is selected, select the record button at any time to record manually.
To modify the track, go to Edit Guidance Track and select the Coordinates tab to add segments to the adaptive curve.
Straight Segment - The longest segment that can be created is 0.8 km (0.5 mi). If the distance is further than that, the line segments do not connect and result in a gap in the path.
Active Track - When the track is active, AutoTrac can use guidance lines that were previously recorded.
Shifting - Shift Track can be used for adaptive curves, but is not recommended. The shift is determined by the current heading on the track and not the geometry of the entire track. Shifting can cause some portions of the track to shift closer or further away from the desired shift. Shift track does not compensate for inherent GPS drift in adaptive curve track mode.
NOTE: Skip pass is not available in adaptive curve track mode.
NOTE: Sharp Curve and End of Path messages can be displayed when in adaptive curve track mode.
NOTE: Track spacing for adaptive curve track data is constant. If a different implement width is used when returning to the field, new data must be recorded.
