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Clutch travel sender
Design
How it works
A clutch travel sender consists of:
An alternating voltage is applied to the primary coil.
As a result of this, a magnetic field is built up around
the iron core. If the clutch is actuated, the clutch
actuator piston moves through the magnetic field
with the permanent magnet. Due to the permenant
magnet's movement, a voltage is induced in the
secondary evaluation coils. The level of the voltage
induced in the left and right evaluation coils is
dependent on the position of the permanent magnet.
Via the level of the voltage in the left and right
evaluation coils, the sensor electronics detect the
position of the permanent magnet and therefore
the position of the clutch actuator piston.
● An iron core, around which the primary coil is
wound
● Two secondary evaluation coils
● A permanent magnet, which is located on the
clutch actuator piston, and
● The sensor electronics
Iron core
Applied alternating voltage
Primary coil
Secondary
evaluation coil
Permanent magnet
S390_091
Sensor electronics
Clutch actuator piston
Evaluation voltage
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