WABCO TEBS E - Current Vehicle Length (Trailer Length Indication) (as of Version TEBS E4)

TEBS E
6
GIO functions
103
6.17 Current vehicle length (Trailer Length Indication) (as of version TEBS E4)
Vehicle type
Trailer with adjustable length
Purpose
Indication of the length of the vehicle (Trailer Length Indication TLI) via the Smart-
Board.
Function
The current extension length can be detected by means of proximity switches or
mechanical switches on the telescope system.
Up to 4 switches can be permanently installed as a group. Shift gates or fields of
view are arranged opposite the switches on the moving parts in the areas of the
engaging positions.
The number of extension stages determines the number of switches. Two switches
can detect 3 stages, three switches 7 stages and 4 switches 15 stages.
Detection of the shift gates or fields of view occurs via the binary system. The table
below illustrates the principles of the fields of view.
Switch 1 Switch 2 Switch 3 Switch 4 Display
0 0 0 0 Length 0
1 0 0 0 Length 1
0 1 0 0 Length 2
1 1 0 0 Length 3
0 0 1 0 Length 4
1 0 1 0 Length 5
0 1 1 0 Length 6
1 1 1 0 Length 7
0 0 0 1 Length 8
1 0 0 1 Length 9
0 1 0 1 ...
Legend
0
Switch opened
1
Switch closed