GF27.19-P-5171AHM K2 Clutch Control Solenoid Valve, Component Description

GF27.19-P-5171AHM K2 clutch control solenoid valve, component description
- TRANSMISSION 722.904/906/999
- refinement package
- as of model year 09

Component Identification:

Location
The K1 clutch control solenoid valve (VGS) is positioned on the electric controller unit (VGS).

Task
The K1 clutch control solenoid valve (VGS) is actuated by the fully integrated transmission control (VGS) control unit and influences the position of the K1. regulating valve. The pressure in the K1 multi-disk clutch depends on the position of the regulating valve and thus on the geometry of the K1 regulating valve. The K1 clutch control solenoid valve (VGS) has a rising characteristic.

This means that the oil pressure applied in the K1 regulating valve increases as the actuation current increases. In limp-home mode of the fully integrated transmission control all the control solenoid valves are de-energized. The K1 clutch control solenoid valve (VGS) thus supplies no pressure.

Function
In the K1 clutch control solenoid valve (VGS) a proportional solenoid converts the electrical signals from the fully integrated transmission control unit (VGS). The float needle can also be moved into intermediate positions as a result.

The K1 clutch control solenoid valve (VGS) assigns a proportional pressure to the current which is controlled by the fully integrated transmission control (VGS) control unit.