Search found 766 matches

by jrbe
Sun Apr 26, 2026 3:20 pm
Forum: General
Topic: Anyone interested in designing a pcb for me £$¥
Replies: 23
Views: 356

Re: Anyone interested in designing a pcb for me £$¥


OK have ha a better play with easy eda, Schematic..


Consider adding 100k-220k pulldowns on analog inputs. Letting them float is sometimes ok, but having them pulled low in case something is disconnected and logic being able to see this pulled low below normal range = disconnect / fault in logic ...
by jrbe
Sat Apr 25, 2026 8:03 pm
Forum: Energy Generation
Topic: Spot market prices in Germany
Replies: 7
Views: 160

Re: Spot market prices in Germany

Geothermal power plants will be the future once we figure them out.
I'd be interested in how vertical East West biaxial panels do as a portion of solar to help fill the gaps.
by jrbe
Fri Apr 24, 2026 2:27 pm
Forum: General
Topic: Anyone interested in designing a pcb for me £$¥
Replies: 23
Views: 356

Re: Anyone interested in designing a pcb for me £$¥

Down the rabbit hole..
https://www.ti.com/document-viewer/lit/html/SSZT243

https://www.analog.com/en/resources/analog-dialogue/articles/protecting-and-powering-automotive-electronics-systems-with-no-switching-noise.html

Then people who do this for a living chiming in on their preferences,
https ...
by jrbe
Fri Apr 24, 2026 12:19 pm
Forum: General
Topic: Anyone interested in designing a pcb for me £$¥
Replies: 23
Views: 356

Re: Anyone interested in designing a pcb for me £$¥

johu wrote: Fri Apr 24, 2026 11:08 am Is it still the case with alternator and starter gone?
Don't want to argue against surge protection of course, just wondering.
My understanding is any large relays like contactors, fan, etc. can do this. Large motors like power steering, vacuum pump, etc. can as well.
by jrbe
Fri Apr 24, 2026 10:56 am
Forum: General
Topic: Anyone interested in designing a pcb for me £$¥
Replies: 23
Views: 356

Re: Anyone interested in designing a pcb for me £$¥

I'd be looking at something like this, a little pricey but most of the sourcing and layout headache is taken care of inside the ic, being new to this, consider de-bs-ing the design
https://jlcpcb.com/partdetail/54689569-TPSM33610S5QRDNRQ1/C51957001
Automotive rated, pretty efficient, and has low ...
by jrbe
Fri Apr 24, 2026 12:44 am
Forum: Open Tasks
Topic: Take over responsilibility for inverter development and support
Replies: 52
Views: 13007

Re: Take over responsilibility for inverter development and support

Consider setting up the ground rules for the AI to follow, pull request, documentation, best practices, etc. to get good info to be able to merge in. Will help reduce slop and the headache to merge.
by jrbe
Thu Apr 23, 2026 10:36 pm
Forum: General
Topic: Anyone interested in designing a pcb for me £$¥
Replies: 23
Views: 356

Re: Anyone interested in designing a pcb for me £$¥

Automotive 12v systems can regularly see 80v spikes, how long will it last?
This is doing throttle to can? Need to be thinking about safety, not just make it work.
by jrbe
Thu Apr 23, 2026 8:08 pm
Forum: General
Topic: Anyone interested in designing a pcb for me £$¥
Replies: 23
Views: 356

Re: Anyone interested in designing a pcb for me £$¥

TI Webench is great for power supply designs but only works for TI ICs. Does layout, schematic, and component selection. Hard part is making sure you find the right components and use the right footprints.
by jrbe
Wed Apr 22, 2026 11:04 am
Forum: BMW
Topic: OI 8HP TCU Project
Replies: 12
Views: 9359

Re: OI 8HP TCU Project

Most of the interest so far seems to be from new usernames looking to control this transmission in ice powered vehicles.

For people interested in the electric side of this but silent and or confused, here's some info to help understand the significance of this transmission / hybrid transmission ...
by jrbe
Tue Apr 21, 2026 10:35 am
Forum: Open Tasks
Topic: Take over responsilibility for inverter development and support
Replies: 52
Views: 13007

Re: Take over responsilibility for inverter development and support

You can assign sub agents to be responsible for things like documentation, git, tech debt, best practices, etc. to have these things done automatically.
Not sure what way or model you're using copilot but there are lots of options. They also evolve capabilities almost weekly.
My favorite is Claude ...
by jrbe
Mon Apr 20, 2026 7:20 pm
Forum: Projects
Topic: [DRIVING] 1940 Chevrolet with Tesla Motor
Replies: 239
Views: 151333

Re: [DRIVING] 1940 Chevrolet with Tesla Motor

Should we group buy a block of mac addresses from ieee?
Could also buy a $2 wifi usb adapter, take the MAC address and recycle it. (I think..)
by jrbe
Sun Apr 19, 2026 11:40 am
Forum: Tesla
Topic: Tesla Model 3 Rear Drive Unit Hacking
Replies: 1194
Views: 481157

Re: Tesla Model 3 Rear Drive Unit Hacking

I will also continue supporting this in ways I can help.
by jrbe
Mon Apr 13, 2026 11:13 am
Forum: Tesla
Topic: Tesla Model 3 Rear Drive Unit Hacking
Replies: 1194
Views: 481157

Re: Tesla Model 3 Rear Drive Unit Hacking

The white plastic is a many years later isolation fix I guess? Looks like they forgot or couldn't do a few areas.

For the hole issue, if 2 holes are perfect you can swap in flush head / cone seat screws to align the board to those 2 then fine tune things from there for the next batch.
by jrbe
Fri Apr 10, 2026 12:29 pm
Forum: General
Topic: Add the phpBB extension Recent Topics NG [SOLVED]
Replies: 6
Views: 191

Re: Add the phpBB extension Recent Topics NG [SOLVED]

I just realized recent topics isn't the full list of new posts, I was missing things. It makes sense to not repeat everything but it's kind of this is what's new.
I think a consistent new posts button would be my preference.
by jrbe
Thu Apr 02, 2026 12:22 pm
Forum: Tesla
Topic: Tesla Model 3 Rear Drive Unit Hacking
Replies: 1194
Views: 481157

Re: Tesla Model 3 Rear Drive Unit Hacking


I've ordered the temp sensor boards and holders from JLC. thanks again to jrbe. I'll uprev to V3.3 and see how we go.


The temp towers you screenshot are for the through hole temp sensors. Just want to make sure you got the ones you need.
The ones for the PCB are here, https://github.com/jrbe ...
by jrbe
Wed Apr 01, 2026 7:03 pm
Forum: Climate Control (HVAC)
Topic: New Forum Climate Control
Replies: 6
Views: 231

Re: New Forum Climate Control

Would it make sense to name it heating and cooling? Could lump radiators and coolant pumps in here too.

I'd expect as this evolves it becomes more of a mishmash of parts to make a system. I'd say leave the existing posts in OEM sections for now as well.

Braking and steering are others to consider ...
by jrbe
Tue Mar 31, 2026 4:08 pm
Forum: Tesla
Topic: Tesla Model 3 Rear Drive Unit Hacking
Replies: 1194
Views: 481157

Re: Tesla Model 3 Rear Drive Unit Hacking

I made a symbol, footprint, and a step file of the pcb tower assembly for KiCAD 10
https://github.com/jrbe/Tesla-Model-3-Current-Sensor-Block/blob/main/Model_3_NTC_Thermistor_Library.zip
image.png
Damien, Dave, and anyone else helping with the PCB side of things, this should be able to swap the ...
by jrbe
Tue Mar 31, 2026 11:16 am
Forum: Tesla
Topic: EV conversion Dual Tesla model 3 drive train front / rear motor swap ??
Replies: 3
Views: 3703

Re: EV conversion Dual Tesla model 3 drive train front / rear motor swap ??

The issues of power split front to rear pop up mostly when traction is near the limit.

The front motor (induction) can run mostly free, no acceleration, no regen so could be used only above say 15% throttle.
Rear will be controlled between acceleration and regen.
Can swap positions.
Lots of ...
by jrbe
Mon Mar 30, 2026 11:31 pm
Forum: Tesla
Topic: Tesla Model 3 Rear Drive Unit Hacking
Replies: 1194
Views: 481157

Re: Tesla Model 3 Rear Drive Unit Hacking


That is a crazy amount of work. Thank you. Very much in the spirit of an opensource project :)

Board scan here : https://grabcad.com/library/tesla-model-3-y-inverter-pcb-1


Happy to help, thanks for all of your efforts in this Damien. The one piece for you to think about is the thermistor, what ...
by jrbe
Mon Mar 30, 2026 5:46 pm
Forum: Projects
Topic: Bunky the eBug: A 30 Day EV Conversion
Replies: 189
Views: 6422

Re: Bunky the eBug: A 30 Day EV Conversion


Generally, compressing quickly is desirable, so that when you hit a bump, the tires can bounce upwards without much stopping them, while the cab stays at the same height. In that way, you won't feel the bump. It eventually needs to reset, but you want it resetting slower than it compressed, spread ...
by jrbe
Mon Mar 30, 2026 3:28 pm
Forum: Tesla
Topic: Tesla Model 3 Rear Drive Unit Hacking
Replies: 1194
Views: 481157

Re: Tesla Model 3 Rear Drive Unit Hacking

I panelized the temp sensors,
image.png

12 v-cuts to pop them apart
image.png

5 panelized pcbs at .6mm thick is under $10 USD and under $50 assembled, this is for 40 inverters worth (120 individual) temp sensor pcbs.
image.png
for some reason JLC jumps the price up 6x if you drop to .4mm ...
by jrbe
Wed Mar 25, 2026 10:59 pm
Forum: Toyota/Lexus
Topic: Gs450h oil pump disassembly issues
Replies: 4
Views: 2305

Re: Gs450h oil pump disassembly issues

Anyone soak it with kroil and try? Freeze it then try?
by jrbe
Tue Mar 24, 2026 7:36 pm
Forum: MG
Topic: MG4 11kW Charger/DCDC (EP3CCU1130B)
Replies: 21
Views: 4408

Re: MG4 11kW Charger/DCDC (EP3CCU1130B)

If you're willing to share the research it will help others, https://openinverter.org/wiki/Coolant_Fittings
by jrbe
Tue Mar 24, 2026 1:23 am
Forum: Getting Started
Topic: What is your opinion how to prevent own work get used to fix fuel burning cars?
Replies: 9
Views: 227

Re: What is your opinion how to prevent own work get used to fix fuel burning cars?


Paying different taxes for different things is something you would say is forcing people?

Flip your position with theirs, if gas burners wanted to make owning an EV more expensive you'd see that as forcing something, right?


But when i also make fixing fuel burning cars more easy and ...
by jrbe
Mon Mar 23, 2026 11:20 pm
Forum: Getting Started
Topic: What is your opinion how to prevent own work get used to fix fuel burning cars?
Replies: 9
Views: 227

Re: What is your opinion how to prevent own work get used to fix fuel burning cars?

You don't make change happen by forcing people to do things. You make change happen by making the right choice the easy and affordable choice.