5
TEBS E
braking system
24
5.4 ABS
configurations
Components
Vehicle type
Comment
2S/2M
1x TEBS E Modu-
lator (standard)
2x ABS rotational
speed sensor
1- to 3-axle semitrailer / central
axle trailer with air suspension,
hydraulic or mechanical sus-
pension
Each control channel has one ABS rotational speed sensor and one
TEBS E pressure control channel. All remaining wheels of a vehicle, if
existing, are controlled indirectly; Individual brake force control (IR). In
this case, each side of the vehicle is provided with the braking pres-
sure that is possible based on the road conditions and the brake char-
acteristics during emergency braking.
2S/2M+Select-Low valve
1x TEBS E Modu-
lator (standard)
2x ABS rotational
speed sensor
1x Select Low
Valve (SLV)
1- to 3-axle semitrailer / central
axle trailer with air suspension,
hydraulic or mechanical sus-
pension and a steering axle
The steering axle is supplied with the respective lower pressure from
the pressure control channels via the SLV, so that the axle remains
stable even in i-split situations (different friction on each side).
4S/2M
1x TEBS E Modu-
lator (Premium)
4x ABS rotational
speed sensor
2- to 5-axle semitrailer / central
axle trailer with air suspension,
hydraulic or mechanical sus-
pension
Two ABS rotational speed sensors are arranged on each side of the
vehicle. Each side of the vehicle is controlled individually. The braking
pressure is the same for all wheels on one side.
The two wheels on this side of the vehicle with sensors are controlled
according to the principle of modified side control (MSR). In this case,
the first wheel to lock on one side of the vehicle is the determining
factor for ABS control.
The principle of individual regulation (IR) is used for the both sides of
the vehicle.
4S/2M+1M+Double check valve
1x TEBS E Modu-
lator (Premium)
4x ABS rotational
speed sensor
1x ABS relay
valve
1x Double check
valve (SHV)
For 2- to 5-axle semitrailers /
2- to 3-axle central axle trailers
with air suspension, hydraulic or
mechanical suspension and a
steering axle
Two ABS rotational speed sensors, one SHV and an ABS relay valve
are arranged on the steering axle.
The steering axle is controlled according to the modified axle regula-
tion (MAR) principle and the other axle according to the principle of
individual control (IR).
4S/3M
1x TEBS E Modu-
lator (Premium)
4x ABS rotational
speed sensor
1x EBS relay
valve
2- to 5-axle drawbar trailers /
2- to 5-axle semitrailers / 2- to
3-axle central axle trailers with
air suspension and one steering
axle.
Two ABS rotational speed sensors and an EBS relay valve are ar-
ranged on the front axle. The steering axle is controlled according to
the Modified Axle Control (MAR) principle. The wheel on the steering
axle which tends to lock up first is dominant for ABS control.
On an additional axle one ABS rotational speed sensor and one TEBS
E pressure control channel control each side separately. These
wheels are individually controlled (IR).
