SDU brake lights output!?

Topics concerning the Tesla front and rear drive unit drop-in board
Post Reply
alexbeatle
Posts: 155
Joined: Sun Jan 03, 2021 6:12 am
Has thanked: 46 times
Been thanked: 15 times

SDU brake lights output!?

Post by alexbeatle »

Hello folks.
Quick question.
How do you trigger the brake lights from the SDU OI board (I have v6) in your projects?
I have a pressure switch on the brakes proportional valve, which I will use to trigger the max. regen - brk sw input to the OI bored. Planning to use the same signal to trigger the lights during pedal braking. But what about during regen braking, when the vehicle slows down from regen?
Thanks in advance.
User avatar
johu
Site Admin
Posts: 5791
Joined: Thu Nov 08, 2018 10:52 pm
Location: Kassel/Germany
Has thanked: 157 times
Been thanked: 1025 times
Contact:

Re: SDU brake lights output!?

Post by johu »

While the OI firmware provides such an output at a regen level you can configure, the SDU and LDU boards do not export that signal to the outside world.
Support R/D and forum on Patreon: https://patreon.com/openinverter - Subscribe on odysee: https://odysee.com/@openinverter:9
alexbeatle
Posts: 155
Joined: Sun Jan 03, 2021 6:12 am
Has thanked: 46 times
Been thanked: 15 times

Re: SDU brake lights output!?

Post by alexbeatle »

johu wrote: Mon Dec 18, 2023 3:59 pm While the OI firmware provides such an output at a regen level you can configure, the SDU and LDU boards do not export that signal to the outside world.
I see. Is it by chance an option to send a regen message via CANbus?
Curious if somebody actually triggers the brake lights during the regen if there's no hardware output on the SDU and LDU OI boards.
User avatar
johu
Site Admin
Posts: 5791
Joined: Thu Nov 08, 2018 10:52 pm
Location: Kassel/Germany
Has thanked: 157 times
Been thanked: 1025 times
Contact:

Re: SDU brake lights output!?

Post by johu »

Put potnom on canbus, receive it in your VCU and when some threshold is passed, turn on the brake light
Support R/D and forum on Patreon: https://patreon.com/openinverter - Subscribe on odysee: https://odysee.com/@openinverter:9
Post Reply