Kuster actuator wiring and control unit

Thread Starter

TuriDP096

Joined Feb 3, 2025
3
Hi all,
I am an Italian guy and I would like to thank you for your support so far.
I am doing a project where I would like to use a Kuster actuator on an opening valve on a Remus exhaust. To be clear, I would like to replicate this control unit used at this link: https://remus.eu/it/remus-sound-controller-ste-0015bt (I don't mind having partial opening, I just want it to do open-close)
Apparently, the actuator is the same (I bought the Audi S3 one. PN 4HO133246H)

If can help, there is a video on YouTube that this person use the Audi actuator on the bench:

There's just figuring out how the Remus control unit works.
I will preface this by saying that I am a neophyte in electronics, but I like to learn and experiment.
At the moment I have already followed an old thread on the forum (https://forum.allaboutcircuits.com/...-exhaust-flap-actuator-kuster-3.204321/page-2 and https://forum.allaboutcircuits.com/threads/how-to-control-current-draw.204624/#post-1956770 ) and I thank you very much because I have done the wiring related to the remote control.

Now though: The actuator, every time it gets power, it does a calibration. Is there any way to save the calibration and not have it do it every time I turn on the ignition? I remain available if more info is needed.
 

MisterBill2

Joined Jan 23, 2018
27,186
The link did not work for me, are you able to describe the control,scheme. Is it a variable resistance, a variable voltage, or some pulse width modulated scheme.
Next, how accurate of position control does the TS application require??? My impression is that exhaust cutouts are either open or closed. I never ran cutouts, but rather either "street legal" or straight pipe, no compromise.
 

MisterBill2

Joined Jan 23, 2018
27,186
The actuator in that yoo toob video does not do any calibration when it is triggered. IT SIMPLY RUNS TO A HARD STOP while winding up a spring, and the unwinds back to the original position when the power is removed. AND I could not understand any of the words the guy said. Based on that video the control is simply ON and OFF. Based on that video, the only control would need to be a switch operated by the throttle linkage when you did a full-throttle acceleration.
Probably it does need some way to control the motor current BECAUSE THE MOTOR IS STALLED at the end of it's motion. You may have seen that the guy in the video NEVER kept the device actuated. It will burn out if the current is not limited after it moves.
 
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