BMW M5 Wartungshandbuch PDF herunterladen (Seite 85)

17

8

Signals and parameters

Gear recognition

The engaged gear is determined in a

contactless arrangement by means of the Hall

sensors on the actuators of the

individual selector rods. The position of the

working pistons is detected.

Reversing light

The redundant sensor system of the 1/R

selector rod detects reverse gear when

engaged and correspondingly informs the

transmission control.

The transmission control informs the lights

switching centre that reverse gear is engaged.

Gearbox oil temperature

The gearbox oil temperature is determined

indirectly via the hydraulic oil temperature

sensor as both temperatures have a linear

deviation with respect to each other.

The SMG control unit uses this temperature

value to operate the electric gear oil pump.

Input speed

The gearbox input speed is determined by a

sensor. This sensor acquires the speed at the

tooth flanks of the gear wheel on the

countershaft.

Clutch slave cylinder

The clutch slave cylinder consists of two

pistons and a spring between the two piston

elements. The second piston is moved

hydraulically. The second piston makes it

possible to bleed the clutch slave cylinder in

installed position without having to open any

screws.

A PLCD sensor (Permanentmagnetic Linear

Contactless Displacement) is arranged

separately in the housing of the clutch slave

cylinder. This sensor determines the exact

position of the release piston.

3 - Clutch slave cylinder

Index Explanation Index Explanation

1 Housing of clutch slave cylinder 3 PLCD sensor

2 Pistons

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 119 120

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