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

GF27.19-P-1112GI Rpm sensor component description
- Transmission 722.9

Component Identification:

Location
The internal speed sensor (VGS) is firmly fixed to the electric control unit (VGS) (Y3/8) and cannot be replaced individually.

Task
The internal speed sensor (VGS) records the internal transmission speed at the ring gear of the front single planetary gear system for the fully integrated transmission control (VGS). This is processed by the fully integrated transmission control (VGS) control unit (Y3/8n4) as an input signal together with the information from the turbine speed sensor (VGS) and the output speed sensor (VGS). 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 speed sensor (VGS), which consists of magneto resistive elements, are used to record the internal transmission speed. A magneto resistive 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 internal-geared wheel 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. By using this speed recording system the measurement can take place over a greater distance than with the Hall sensor.