Search found 791 matches

by celeron55
Thu Jul 25, 2024 5:22 pm
Forum: Charging
Topic: The Foccci gallery
Replies: 4
Views: 1153

Re: The Foccci gallery

The Previa, now with Foccci. The pyPLC hardware has been ditched and the connector moved. I've been charging at 180A and under, which is about 50kW. I'll increase that a bit when being at the optimal temperature range (25...45°C), once I have some time.
IMG_20240725_201334_886.jpg
by celeron55
Wed Jul 24, 2024 6:39 am
Forum: Battery Managment (BMS)
Topic: Tesla Cybertruck decoding
Replies: 3
Views: 293

Re: Tesla Cybertruck decoding

I think the cybertruck has ethernet available at the OBD2 port, so at least for regular diagnostics you want an OBD2-ethernet adapter. Whether that allows you to do any reverse engineering, I don't know. The etherloop bus runs between the front and rear of the vehicle but not into every module. It s...
by celeron55
Mon Jul 15, 2024 6:15 am
Forum: User Interface
Topic: Tool to manage openinverter via CAN
Replies: 149
Views: 41426

Re: Tool to manage openinverter via CAN

I would love to have the ability to map big endian values, as I generally use that. Foccci/clara is currently forcing me to bodge extra little-endian or 8-bit values to messages in my cars to make things work. I don't expect this to ever be added, but looks like now is the time to mention this in an...
by celeron55
Tue Jul 09, 2024 7:41 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 623
Views: 9491676

Re: Develop a QCA7000 board?

I think uhi22 meant a diode in series. No? To only allow current to flow out from the EN pin.
by celeron55
Thu Jul 04, 2024 6:28 pm
Forum: Projects
Topic: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries
Replies: 35
Views: 9935

Re: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries

The first one is the "final-ish" electrical assembly video (in Finnish)

The second one is the Foccci/Clara configuration video (in English)



by celeron55
Mon Jul 01, 2024 1:35 pm
Forum: Projects
Topic: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries
Replies: 35
Views: 9935

Re: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries

More videos. I decided to install foccci inside the contactor box. Really no other way of making it serviceable in this situation. I still have a video upcoming of wiring the box to the car, and then a video about roughly configuring foccci for a first charging test. In the latter I tried to talk in...
by celeron55
Tue Jun 18, 2024 8:31 pm
Forum: Projects
Topic: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries
Replies: 35
Views: 9935

Re: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries

I'm potentially abandoning my EV van project for something slightly smaller and the previa is a consideration. I've already got a lexus GS450H transmission and battery setup... Would you recommend this minivan? Ideally I will still be able to use it as a small campervan so the previa might be a bit...
by celeron55
Tue Jun 18, 2024 10:29 am
Forum: Projects
Topic: [WIP] Audi A2 conversion
Replies: 3
Views: 753

Re: [WIP] Audi A2 conversion

You definitely do not want to use "5 or 6 Tesla modules". You will end up with a very low voltage which will prevent you from getting any performance out of your motor, and will make it harder to find a quality on-board charger and DC-DC converter, and will make it impossible to DC fast ch...
by celeron55
Sun Jun 16, 2024 8:20 am
Forum: Projects
Topic: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries
Replies: 35
Views: 9935

Re: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries

Earlier you said you gave up on LIM charging. Is that a thing that doesn't work anymore? I thought that was still the meta for fast charging. The current meta for CCS is definitely uhi22's foccci+clara. That's what's going into this and what I already have on the Omega. What's installed on this at ...
by celeron55
Sat Jun 15, 2024 8:15 pm
Forum: Projects
Topic: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries
Replies: 35
Views: 9935

Re: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries

I've been documenting Previa stuff as Youtube videos lately. I try to make about 15 minute videos where I cram about 1-2 days of work, so the boringness level should be well under control. I'll post more as I progress, so subscribe there if you'd like to see them. I talk in Finnish, but not very muc...
by celeron55
Wed Jun 05, 2024 9:32 pm
Forum: Charging
Topic: The Foccci gallery
Replies: 4
Views: 1153

Re: The Foccci gallery

The Omega. 250A (70-80kW) is the most I dare to try with the 13 old 2015 Tesla Model S modules. Only once they've warmed up but not too warm.
20240427_090210.jpg
by celeron55
Thu May 30, 2024 10:26 pm
Forum: Projects
Topic: [DRIVING] Opel Omega B2 + GS450H (the "EVOmega")
Replies: 77
Views: 23450

Re: [DRIVING] Opel Omega B2 + GS450H (the "EVOmega")

I've been testing the GS450H low gear on the Omega yesterday and today. Also did a quick and dirty auto shift implementation in the VCU code. This car still uses the old GS450H VCU with my custom firmware. The plan is to move to Zombie, but that's not easy when it's partially a daily driver. Anyway....
by celeron55
Sun May 26, 2024 3:25 pm
Forum: Charging
Topic: Type 2 to CHAdeMO Converter/Charger?
Replies: 16
Views: 2681

Re: Type 2 to CHAdeMO Converter/Charger?

In my mind as an EV converter, it doesn't make a huge difference whether you make a separate unit or whether you permanently install. The separate unit might be way easier to integrate given you can't modify the car's firmware and probably don't have BMS info and wakeup/shutdown commands or lines ea...
by celeron55
Fri May 24, 2024 11:44 am
Forum: Charging
Topic: Type 2 to CHAdeMO Converter/Charger?
Replies: 16
Views: 2681

Re: Type 2 to CHAdeMO Converter/Charger?

I built a charger like this for the Previa in 2020 from a Prius gen3 inverter. Then fairly quickly I decided it was way too heavy to carry around so I removed the Chademo plug and permanently installed it to the car. About a month ago I removed it from the car as it wasn't working anymore and I didn...
by celeron55
Fri May 24, 2024 11:32 am
Forum: Projects
Topic: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries
Replies: 35
Views: 9935

Re: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries

My recent 2100 km road trip to Sweden brought the odometer of this thing to 389 300 km, meaning it has now travelled 90 000 electric kilometers. It still runs an ancient version of pyPLC which for some reason doesn't work anymore with Tesla Superchargers which made charging up north a bit of a chall...
by celeron55
Sat Apr 13, 2024 8:00 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 623
Views: 9491676

Re: Develop a QCA7000 board?

That new pin ordering makes a lot of sense. The contactors and the voltage monitor are likely to be located in a junction box that is very much a "car side" thing. Are all of the pins other than LOCK_MOT1 and LOCK_MOT2 referenced to ground? This would mean the only signal you need to bring...
by celeron55
Mon Apr 08, 2024 5:06 pm
Forum: Projects
Topic: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries
Replies: 35
Views: 9935

Re: [DRIVING] 1992 Toyota Previa with Leaf stuff and lots of Tesla batteries

I finally removed the Prius gen3 inverter based 3 phase charger. This wasn't working for a long time already and was only dead weight and an isolation fault and a coolant leak waiting to happen. I have no idea why it stopped working and don't really care. Good riddance, as the car still has 3kW AC, ...
by celeron55
Tue Mar 19, 2024 7:08 pm
Forum: Charging
Topic: Foccci wakeup/sleep discussions
Replies: 80
Views: 15038

Re: Foccci wakeup/sleep discussions

the popular Outlander charger expects an undistorted CP signal I have heard it doesn't really need an undistorted CP signal, it just needs 12V PWM with a current limiting resistor. Not even -12...12V, just 0...12V. So foccci could just replicate the CP PWM to a new 0...12V output, as far as the out...
by celeron55
Sat Mar 09, 2024 3:02 pm
Forum: Projects
Topic: [DRIVING] Opel Omega B2 + GS450H (the "EVOmega")
Replies: 77
Views: 23450

Re: [DRIVING] Opel Omega B2 + GS450H (the "EVOmega")

This one was made possible by having the same amount of bolts almost at the same radius which allowed me to interlace them. And the Omega propshaft having the same pilot pin diameter as the gearbox. Also, the backside of the gearbox output flange happens to be machined, which also was crucial. I thi...
by celeron55
Sat Mar 09, 2024 12:31 pm
Forum: Projects
Topic: [DRIVING] Opel Omega B2 + GS450H (the "EVOmega")
Replies: 77
Views: 23450

Re: [DRIVING] Opel Omega B2 + GS450H (the "EVOmega")

The original propshaft flange adapter cracked and started to vibrate, so I had to make a new one. This one is pretty simple, it's laser cut from 10mm steel plate, then ground and welded a bit and bolted on the backside of the gearbox output flange just like the original. The flange and some of the b...
by celeron55
Fri Mar 01, 2024 9:25 am
Forum: Projects
Topic: 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck [FINISHED]
Replies: 1296
Views: 1390861

Re: 1971 GMCe Lexus GS450H BMW 530e Tesla Model S Electruck [FINISHED]

Doing things the hard way, you would think you are auditioning for Good Enuff Garage? don't walk by any unmarked white vans with no windows, we might just abduct you, we are always on the lookout for a Lead Fabricator As the Lead Fabricator, we are expecting from you the complete confidence to fabr...
by celeron55
Thu Feb 29, 2024 5:11 pm
Forum: Charging
Topic: Foccci wakeup/sleep discussions
Replies: 80
Views: 15038

Re: Foccci wakeup/sleep discussions

I think it would be perfectly fine to have foccci powered up while driving. Actually it would be preferable. This allows one to check from it whether something is plugged in any time one tries to drive (as mentioned by tom), but also it allows a dashboard display to read any stored errors from foccc...
by celeron55
Wed Feb 28, 2024 4:24 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 623
Views: 9491676

Re: Develop a QCA7000 board?

That makes a lot of sense. This use case is mentioned on DRV8874's datasheet at 8.2.2 Alternative Application

Certainly it is much better value for money compared to the NCV8402.
by celeron55
Tue Feb 27, 2024 9:04 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 623
Views: 9491676

Re: Develop a QCA7000 board?

First rule of EDA: DRC is always right and the user is always wrong. Don't bet against the machine. :D
by celeron55
Mon Feb 26, 2024 11:26 am
Forum: Projects
Topic: [DRIVING] Opel Omega B2 + GS450H (the "EVOmega")
Replies: 77
Views: 23450

Re: [DRIVING] Opel Omega B2 + GS450H (the "EVOmega")

I finished a preliminary install of uhi22's foccci 4.1, with a couple of modifications (I replaced the contactor drivers with mosfets and flyback diodes to enable economizing the contactors, and did the 5V/330ohm PP fix). I have now tested it to work fine on many different charger models (https://op...