GF27.19-P-5127-04N Speed Sensor, Function

GF27.19-P-5127-04N Speed sensor, function
- Transmission 722.9
- Turbine speed sensor

Component Identification:

A permanently magnetized pole wheel (ring magnet (1)) and the turbine speed sensor (VGS) (Y3/8n1), which consists of magneto resistive elements, are used to record the turbine speed. A magneto resistive element changes its resistance under the influence of a magnetic field. The ring magnet (1) is stuck onto an aluminum ring plate and is connected with a ring gear of the Ravigneaux set.

Magnetic field changes occur due to the rotary motion of the ring gear and as a result a resistance change occurs in the magneto resistive elements An electronic analysis system transmits this information to the fully integrated transmission control (VGS) control unit (Y3/8n4). By using this speed recording system the measurement can take place over a greater distance than with the Hall sensor.