Do you have the Bosch part there with you?
It appears that it is a "Pedal Sender" used in Audi/VW TDI vehicles.
The inverter diagram is pretty standard stuff in VFD drives.
Do you have access to a multimeter that can read ohms and are you familiar with using one to read ohms?
We might be able to help you figure out how to hook this up if you can "ohm out" the Bosch sender.
So now the goal is to find the potentiometer leads. It looks like the wires are connected to twisted pair wires.
At least 2 of the wires are probably connected to a pot. Check the ohm reading of each of those pairs, and move the actuator through its range of movement when you do.
I would expect to see something like 2k to 10K at full scale on one end, and 0 to 500 ohms when at the other.
The greatest hope is to find both ends of a pot and then the wiper.
I don't think that you will harm the part, so go ahead and have at it.
White/brown : (start) 1,22 -- (end) 2.07
Green / yellow: no output
Pink/gray : no output
Gray/yellow: : (start) 1,25 -- (end) > 1 mega Ohm
Pink/white: : (start) 2,2 -- (end) 1.,3 Ohm
Start/end = pulling the throttle
The Gray/Yellow has the widest band, but might actually be too wide.
White/Brown looks like a usable value. You really do want to have both ends of the pot available, in addition to the wiper.
Try to obtain a reading from the Gray wire to any other wire besides the Yellow wire.
You are searching for the other end of that pot resistor.
I sent an e-mail to the fellow who did the EV Beetle that you referenced in your first post.
Perhaps he will be able to provide some data that will be helpful for you.
What brand and model of Inverter/VFD are you using?
You will connect one end of the pot to pin 1, the other end to pin 2, and then the wiper to pin 3.
Do you have the manual for your inverter?
If the data for the Bosch part is not available, there a lot of other parts that will work too.
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