gf4225w3003a

Brake application with trailer braking, function

Typ gf · temat 42.25 · wersja 0107 · 2007-06-25

Dotyczy: MODEL 944, 950.5 /6, 952.5 /6, 953.6, 954.5 with CODE (BB1) Brake control (BS) except CODE (ZX2) EPB II MODEL 944, 950.5 /6, 952.5 /6, 953.6, 954.5 with CODE (BB8) Brake control (BS) with ASR except CODE (ZX2) EPB II MODEL 950.0 /1 /2 /3, 952.0 /1 /2 /3, 953.1 /3, 954.0 /1 /2 with CODE (BB1) Brake control (BS) MODEL 950.0 /1 /2 /3, 952.0 /1 /2 /3, 953.1 /3, 954.0 /1 /2 with CODE (BB8) Brake control (BS) with ASR

Niedostępne w języku „pl”; wyświetlono w języku Angielski.

Umiejscowienie

Grupa funkcyjna 2 Podwozie › 42 Układ hydrauliczny i mechanizm hamulców › 42.25 Hamulce elektroniczno-pneumatyczne (EPB) — Seria 944 · Seria 950 (modele 0**, 1**, 2**, 3**, 5**, 6**) · Seria 952 (modele 0**, 1**, 2**, 3**, 5**, 6**) · Seria 953 (modele 1**, 3**, 6**) · Seria 954 (modele 0**, 1**, 2**, 5**)

GF42.25-W-3003A

Brake application with trailer braking, function

18.6.07

MODEL 944, 950.5 /6, 952.5 /6, 953.6, 954.5
with CODE (BB1) Brake control (BS)
except CODE (ZX2) EPB II

MODEL 944, 950.5 /6, 952.5 /6, 953.6, 954.5
with CODE (BB8) Brake control (BS) with ASR
except CODE (ZX2) EPB II

MODEL 950.0 /1 /2 /3, 952.0 /1 /2 /3, 953.1 /3, 954.0 /1 /2 with CODE (BB1) Brake control (BS)

MODEL 950.0 /1 /2 /3, 952.0 /1 /2 /3, 953.1 /3, 954.0 /1 /2 with CODE (BB8) Brake control (BS) with ASR

Brake application with trailer braking, function

W42.25-0013-12

1.1 Proportioning valve

1.2 Pressure sensor

1.3 Relay valve

13.05 Brake value sensor

14.02 Parking brake valve with trailer control

16.07 Proportioning relay valve

18.07 Trailer control valve

33.06 Redundancy valve

35.02 Coupling head for supply

35.03 Coupling head for brake

V1 Supply, circuit 1

V2 Supply, circuit 2

V3 Supply, circuit 3

a Supply pressure (V1, V2 and V3)

b Redundancy circuit (pneumatic control pressure)

c Brake circuit

The maximum supply pressure is available at the brake value sensor (13.05) and the trailer control valve (18.07).

When the brake pedal is depressed, the brake value sensor (13.05) measures the pedal travel and relays it to the BS/EPB control unit. In addition, the brake light switches are closed, indicating to the BS/EPB control unit that the brake lights must be actuated.

When the brake value sensor (13.05) is operated, the trailer control valve (18.07) is actuated electrically and supplies pressure to the brake coupling head (35.03) according to the defined specification. Simultaneously the pneumatic control pressure modulated by the brake value sensor is also present at connection 42 of the trailer control valve.

The wheel speed sensors provide the BS/EPB control unit with feedback on the achieved braking effect and the wheel slip. This feedback is used in conjunction with the position of the brake pedal to regulate the brake pressure precisely.

In the event of a fault in the electropneumatic system, the redundant (pneumatic) control pressure modulated by the brake value sensor (13.05) actuates the trailer control valve via connection 42.

BS/EPB control unit, location/task

GF42.25-W-3100A

Coupling head for supplies/brake, location/task

GF42.25-W-3111A

Pedal travel sensor - Location/Function/Design

GF42.25-W-3119A

Trailer control valve, location/task/design

GF42.25-W-3121A

Proportioning relay valve, location/task/design

GF42.25-W-3122A

Component description for the rpm sensor

GF42.30-W-4552D

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