Why do we need open source control board for tesla onboard chargers ?

[mcan]

Hi everyone,

I'm trying to understand the necessity of using an open source control board for Tesla onboard chargers.

Why do we need an open source control board for these chargers?
How is this open source board connected to the original onboard charger?
Is there a reason we can't directly communicate with the onboard charger without this intermediary?

i am looking to this link but couldnt figured out.
https://github.com/damienmaguire/Tesla-Charger
Thanks in advance for your insights!

[tom91]

It is all explained on the link you posted...

https://openinverter.org/wiki/Tesla_Mod ... N2_Charger

https://openinverter.org/wiki/Tesla_Mod ... N2_Charger

https://www.evbmw.com/index.php/evbmw-w ... ogic-board

[mcan]

Hi thank you but , as I I dictated I know those links but couldnt see or understand why do we need those cards ?can't we just communicate directly with Tesla original boards ? Could you please indicate explicitly where does it mentions the rationale behind these cards ?

[tom91]

can't we just communicate directly with Tesla original boards ?

No. You really need to ask?

Why would someone take the effort to develop the board if you could just talk to it.

[Zieg]

I think in one of Damien's early videos he mentioned the charger being deeply integrated with other components of the car, and that you can't just feed it CAN messages or whatever. He didn't go into specifics, but I'm willing to take him at his word when he says it can't be done.

[johu]

Besides CAN it has some other control signals that need to be controlled. For more info see schematic and source code

[mcan]

@Johu and @Zieg thank you guys , what I understood from your answers it is possible but not practical enough , this makes sense. I was thinking if there was any vin code related encryption or some security measures...