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TEBS E
Start-up
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Reduced EOL test
As of version TEBS E2.5 there is the option of reducing the EOL test.
The following conditions must be met for this:
• Under Options, Settings, Test options the setting for the Object test
(optional) TailGUARD test must be selected.
• The distance between the left and right LIN ultrasonic sensors is
1.6 - 2.4 m.
• With three LIN ultrasonic sensors the middle LIN ultrasonic sensor
must be positioned centrally. A deviation of 30 cm to the left or right
of the central axis is permitted.
• The installation depth of the LIN ultrasonic sensors is 35 cm maxi-
mum.
If all the conditions are met, the initialisation process changes:
– Confirm the installation dimensions that were defined with the parameters. Only
then can the initialisation be reduced using the Distances correct, exit object
test button.
– Continue as described under section „Teaching the LIN ultrasonic sensors’.
– Additionally with three LIN ultrasonic sensors at the main level: After the last
LIN ultrasonic sensor has been learned, the position lamps are illuminated for 3
seconds.
– The position of the middle LIN ultrasonic sensor must then be confirmed by
keeping it held again (position lights must go out).
If one of these conditions is not met, the normal EOL test must be carried out.
Echo test
Finally, the echo test is carried out. Leave an area of 2.5 m behind and 0.5 m at the
side of the vehicle as free space for this purpose.
– If an object is detected, press the Mask reflections button to mask this reflection
out (see section ‘Normal EOL test - Test for reflections’).
The reflection test can be omitted for the EOL test if the following conditions apply:
• The reflection test was previously carried out successfully at least once.
• The structure of the vehicle's rear, i.e. the installation position of the ultrasonic
sensors, buffer, etc. is still identical.
• A stable and series production with reliable processes is being used.
The reflection test can also be deselected via Options and Settings. However, this
is only recommended for standardised vehicles whose values are known and
where the reflection test has been carried out once.
After carrying out the test for the first time, the interference echo values must be
written to a file (only where interference echoes are found). The content of this file
should be added to the ECU file for the next vehicle.
When you start configuring with a modified ECU file, a dialogue appears asking
whether the values in the ECU file should be used. This is permitted only for vehi-
cles with the same TailGUARD configuration and identical installation scenario.
In the case of new vehicles or changed installation conditions (e.g. more or differ-
ently arranged external components on the trailer rear), the reflection test must not
be deselected.
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