EUV Control: Charging Pressure Regulation System

Hello.

A question about the EUV (Electric Switching Valve):
Does anyone have any idea what the typical duty cycle and frequency of the PWM signal used to control a turbocharger wastegate for boost pressure regulation are (for a VW Golf TDI with an AGR engine, specifically the Pierburg SI 0051)?

Regarding the EPW (Electro-pneumatic pressure converter for EGR control or VTG turbocharger), I found the following values in the Pierburg SI 0065 documentation:
Duty cycle: 20-95%.
Frequency: 250-300 Hz.

Thank you.

Stephan Leci.

Hi Stephan,

The duty cycle depends on the throttle position, engine speed, etc.
How else? The search function is the key.

Best regards, Rainer.

Rainer K. wrote:

The throttle ratio depends on the accelerator pedal position, engine speed, etc.

... and the frequency is likely to be very similar or identical due to the almost identical designs of the EGR and VTG valves.