Technical information on how the GTBxxxxVK electronic actuators work wanted!

Alcaid

Alcaid

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Hi,

does anyone have any technical information on how the electronic actuators on the VK turbos work? (gtb1756vk, gtb2056vk, gtb2260vk)

I'd like to build a circuit that controls the vanes with the original actuator, but don't know where to start.

Thanks!
 
Alcaid

Alcaid

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dieseleux said:
http://forums.tdiclub.com/showthread.php?t=292141

Read this...


Dieseleux
Click to expand...
Thanks, I have read that one before, but it doesn't help understand how the non-PWM actuators work. One possibility is to convert to PWM-controlled electronics and build a cicuit to controll that but I was hoping that a more direct route was possible.

This is planned for a car that doesn't have an ECU to begin with (1.6TD)
 
Alcaid

Alcaid

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mojogoes said:
http://www.google.co.uk/url?sa=t&so...ztjvDA&usg=AFQjCNEqiFjz8zFGNzXnHvAK0hygKW4hnQ
http://www.google.co.uk/url?sa=t&so...ztjvDA&usg=AFQjCNF_2sVNAhWkaqOaK0D5PjlhjJXtyA
Click to expand...
Thanks for the informative links, it definitely puts the last nail in the coffin for the CAN based controller:

"The CAN system is way more complex then just sending PWM signals on the data wires.. its a whole system with a master controller
and each "node" ( the vnt controller is a node ) communicates back to the main system. The master system does not just send a signal to open
and close the VNT it sends full message packets in CANbus protocol."
 
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