GF27.19-P-5174AHI B1 Multidisk Brake Control Solenoid Valve, Component Description

GF27.19-P-5174AHI B1 multidisk brake control solenoid valve, component description
- TRANSMISSION 722.930

Component Identification:

Location
The B1 brake control solenoid valve (VGS) is positioned on the electric controller unit (VGS).

Task
The B1 brake control solenoid valve (VGS) is actuated by the fully integrated transmission control (VGS) control unit and influences the position of the B1. regulating valve. The pressure in the B1 multi-disk brake depends on the position of the regulating valve and thus on the geometry of the B1 regulating valve. The B1 brake control solenoid valve (VGS) has a lowering characteristic.

This means that the oil pressure applied in the regulating valve B1 reduces as the actuation current increases. In limp-home mode of the fully integrated transmission control all the control solenoid valves are de-energized. The B1 brake control solenoid valve (VGS) thus supplies maximum pressure.

Function
In the B1 brake 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 B1 brake control solenoid valve (VGS) assigns a proportional pressure to the current which is controlled by the fully integrated transmission control (VGS) control unit.