GF27.19-P-1112CWZ RPM Sensor Component Description

GF27.19-P-1112CWZ Rpm sensor component description
- Transmission 722.9
- Drehzahlsensor interne Getriebedrehzahl

Component Identification:

Location
The internal transmission speed rpm sensor is permanently connected to the fully integrated transmission control controller unit (Y3/8) and cannot be replaced separately.

Task
The internal transmission speed rpm sensor detects the internal transmission speed at the ring of the front single planetary gear set for the fully integrated transmission control (VGS). Together with the information from the turbine wheel rpm sensor and the output shaft rpm sensor, this is processed as an input signal by the fully integrated transmission control control unit (Y3/8n4). This contributes to shortening the reaction time during shift operations.

Function
A permanently magnetized pole wheel (cylinder flange with integrated ring magnet) and the internal transmission speed rpm sensor, which consists of magnetoresistive elements, are used to detect the internal transmission speed. A magnetoresistive element changes its resistance under the influence of a magnetic field. The cylinder flange with integral ring magnet is connected to the ring gear of the rear single planetary gear set. Magnetic field changes occur due to the rotary motion of the ring gear and as a result a resistance change occurs in the magnetoresistive elements An electronic analysis system passes on this information to the fully integrated transmission control control unit. By using this speed recording system the measurement can take place over a greater distance than with the Hall sensor.