gf4225w3000b

Brake application at front axle, function

Typ gf · temat 42.25 · wersja 0108 · 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, 954.04 /05 /06 /08 /1 /2 with CODE (BB1) Brake control (BS) MODEL 950.0 /1 /2 /3, 952.0 /1 /2 /3, 953.1 /3, 954.04 /05 /06 /08 /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 04*, 05*, 06*, 08*, 1**, 2**, 5**)

GF42.25-W-3000B

Brake application at front axle, 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, 954.04 /05 /06 /08 /1 /2 with CODE (BB1) Brake control (BS)

MODEL 950.0 /1 /2 /3, 952.0 /1 /2 /3, 953.1 /3, 954.04 /05 /06 /08 /1 /2 with CODE (BB8) Brake control (BS) with ASR

Brake application at front axle, function

W42.25-0015-06

1.1 Proportioning valve

1.2 Relay valve

12.07 Brake wear sensor

12.08 Rpm sensor

13.05 Brake value sensor

16.07 Proportioning relay valve

20.02 Single-circuit diaphragm brake cylinder

45.01 ABS solenoid valve

V1 Supply, circuit 1

V2 Supply, circuit 2

a Supply pressure (V1 and V2)

b Redundancy circuit (pneumatic control pressure)

c Brake pressure

The maximum supply pressure is available at the brake value sensor (13.05) and the proportioning relay valve (16.07).

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

The BS/EPB control unit then actuates the proportioning relay valve (16.07) such that the calculated brake pressure is sent to the single-circuit diaphragm brake cylinders (20.02) via the ABS solenoid valves (45.01).

The wheel speed sensors (12.08) provide the 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 electronics system, the redundant (pneumatic) control pressure from the brake value sensor (13.05) actuates the relay valve (1.2) in the proportioning relay valve (16.07).

BS/EPB control unit, location/task

GF42.25-W-3100A

Brake wear sensor, location/task/function

Disk brake

GF42.25-W-3106A

Drum brake

GF42.25-W-3106B

ABS solenoid valve, location / task / design / function

GF42.25-W-3110A

Pedal travel sensor - Location/Function/Design

GF42.25-W-3119A

Proportioning relay valve, location/task/design

GF42.25-W-3122A

Component description for the rpm sensor

GF42.30-W-4552D

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