
Documentation HG G-73650ZD | English, Revision 05 | Date: 09.03.2017 | www.goetting-agv.com
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Chapter 2: Basic Principles of Track Guidance
The offset option is released via the attributes offset left (0x00000400) and offset right
(0x00000200) in the segment. The actual offset will be initiated via the CAN box from Table
37 on page 115 through bit 2 (switching right) and bit 3 (switching left). If this attribute is
switched off while the vehicle still drives with offset, the vehicle stops with an error mes-
sage. Therefore a free attribute should mark the end of the offset mode early enough before
the vehicle is supposed to switch back to the track.
Figure 16
Example: Offset driving
2.5.3.2 Inverted Steering
The Attributes „Steer inverse“ and „Steer not inverse“ are used to handle special cases for
omnidirectional vehicles with limited steering angles. The following example shows an om-
nidirectional vehicle with a total steering angle of 120°. The vehicle starts the curve from
the position on the left and is supposed to drive a rightwards curve from there. Without a
pre-setting the control unit chooses the steering direction automatically. In 50 % of all tries
this would lead to a false decision in the example. If the control unit decides to steer right-
wards it would drive to the position shown with dotted lines. There it would reach the max-
imum steering angle and could not steer any further. Before it leaves the course it is
stopped.
Figure 17
Example: Inverted steering
Initial position
„Steer not inverse“
Max. steering angle
reached (steer right in
Wheel heading and
max. steering angle
right turn)
„Steer inverse“
The curve can be
driven (steer left
in right turn)