Solenoid valves, electronic pressure control valves

Solenoid valves, electronic pressure control valves

The solenoid valves (MV) and electronic pressure control valves (EDS) are installed in the hydraulic unit (hydraulic selector unit).
The clutches of the automatic transmission are hydraulically controlled in the hydraulic selector unit.

Brief description of components

The following components are described:

Solenoid valves

The 2 solenoid valves are 3/2-way valves, i.e. valves with 3 connections and 2 switch positions.
The solenoid valves are activated by the EGS control module and have 2 functions:

• Valve activated: Open
  
• Valve not activated: closed
  
  

Various clutch valves are activated via the solenoid valves.

Electronic pressure actuators

The electronic pressure control valves convert an electrical current specified by the EGS control module into a proportional hydraulic pressure.
The electronic pressure control valves activate the valves that belong to the shift elements.

The following types of electronic pressure control valve are fitted:

Electronic pressure control valves with rising characteristic curve

Technical data:

• Pressure range: 0 kPa to 888 kPa
  
• Range of the control current: 100 mA to 1100 mA
  
• Power supply: 12 Volts
  
  

Electronic pressure control valves with falling characteristic curve

Technical data

• Pressure range: 888 kPa to 0 kPa
  
• Range of the control current: 1100 mA to 100 mA
  
• Power supply: 12 Volts
  
  
  

No liability can be accepted for printing or other faults. Subject to changes of a technical nature