Search found 5753 matches

by johu
Sat Apr 13, 2024 9:28 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 569
Views: 5623986

Re: Develop a QCA7000 board?

celeron55 wrote: Sat Apr 13, 2024 8:00 pm Are all of the pins other than LOCK_MOT1 and LOCK_MOT2 referenced to ground?
Yes exactly. PE should be solidly connected to the chassis not far away from the charge port so that would serve as a ground reference for the signals

I guess the design is still young enough for shuffling pins
by johu
Sat Apr 13, 2024 10:46 am
Forum: Toyota/Lexus
Topic: Doing useful things with the Prius Gen2 buck/boost converter
Replies: 12
Views: 581

Re: Doing useful things with the Prius Gen2 buck/boost converter

Via the A/C inverter it will just boost
Via MG1 it will just buck. You need an additional relay to connect the battery to the buck side while charging. At least then you don't need the extra current sensor because it will use the MG1 ones
by johu
Sat Apr 13, 2024 10:07 am
Forum: Toyota/Lexus
Topic: Doing useful things with the Prius Gen2 buck/boost converter
Replies: 12
Views: 581

Re: Doing useful things with the Prius Gen2 buck/boost converter

So charging feature would work but not powering the dcdc converter while driving.
by johu
Sat Apr 13, 2024 8:54 am
Forum: Toyota/Lexus
Topic: Doing useful things with the Prius Gen2 buck/boost converter
Replies: 12
Views: 581

Re: Doing useful things with the Prius Gen2 buck/boost converter

Good news, I also bought one of those 2nd hand from someone who went a different way. So I have both hardwares. Is it version 1.3? Early versions don't have the user PWM connection. Stupid question, how does it know whether it's in charge mode, and is charge mode also what happens during regen? Bec...
by johu
Fri Apr 12, 2024 6:42 pm
Forum: Toyota/Lexus
Topic: Doing useful things with the Prius Gen2 buck/boost converter
Replies: 12
Views: 581

Re: Doing useful things with the Prius Gen2 buck/boost converter

The booster is limited to 100A, so this will get you 10 kW
by johu
Fri Apr 12, 2024 4:10 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 569
Views: 5623986

Re: Develop a QCA7000 board?

The order has gone through now, I'm excited! On another note I wanted your input on this. Here is the current pinout: focci_pinout.jpg The two contactor outputs are on different plugs. The LEDs and button are not on the plug that is more charge port oriented but on the car oriented one. Now I though...
by johu
Fri Apr 12, 2024 3:46 pm
Forum: Toyota/Lexus
Topic: Doing useful things with the Prius Gen2 buck/boost converter
Replies: 12
Views: 581

Re: Doing useful things with the Prius Gen2 buck/boost converter

Also, does any of what you described require using new pins or telling the buck/boost what to do? Any code or software? Or does it just happen by being connected? Sorry, just found this. With the SMT version of the Prius controller this is integrated. In drive mode the "user PWM" pin runs...
by johu
Fri Apr 12, 2024 8:49 am
Forum: Battery Managment (BMS)
Topic: Manual discharge of a 60v pack
Replies: 6
Views: 304

Re: Manual discharge of a 60v pack

I like to use my cheap Chinese grid tie inverter
Image
by johu
Fri Apr 12, 2024 8:02 am
Forum: User Interface
Topic: Display alternating
Replies: 3
Views: 270

Re: Display alternating

screen capture would help. Is it the new "green" interface or the old "white" one?
by johu
Fri Apr 12, 2024 2:02 am
Forum: Inverters / Motor Controllers
Topic: Am I to dumb for Open Inverter
Replies: 21
Views: 1202

Re: Am I to dumb for Open Inverter

Yes I see it now and no that will not cause an issue
by johu
Thu Apr 11, 2024 7:59 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 569
Views: 5623986

Re: Develop a QCA7000 board?

Yes indeed. It's 28€ just for the QCA chip and like 20€ for the remaining board :) Order went wrong. Went through till payment, then suddenly jumped to order history. Cart and history empty :( Couldn't start over because the QCAs are now stuck in the zombie order. Meh, they'll figure it out. I have ...
by johu
Thu Apr 11, 2024 7:49 pm
Forum: Projects
Topic: [WIP] Volvo Vee70 with Outlander Rear Motor
Replies: 25
Views: 2223

Re: [WIP] Volvo Vee70 with Outlander Rear Motor

Veeery nice! Udo will like that.
I think you have the book, right?

Maybe you can be somewhat compatible? But don't want to restrict you ;)
grafik.png
Attached some notes also, but the table from the book is more up to date
by johu
Thu Apr 11, 2024 5:44 pm
Forum: Projects
Topic: [WIP] 1998 Nissan Frontier Minitruck - LEAF 40kwh
Replies: 26
Views: 2700

Re: [WIP] 1998 Nissan Frontier Minitruck - LEAF 40kwh

Very tidy install and great re-use factor!
Are you using the stock battery-to-drivestack cable as well?
by johu
Thu Apr 11, 2024 5:23 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 569
Views: 5623986

Re: Develop a QCA7000 board?

Another milestone reached today. I ordered 10 QCA7005 chips to JLCPCBs factory and can now select it for assembly :) They are a bit expensive at 28€ a piece but that is better than loosing chips to nasty soldering, let alone the time this consumes. So this quantity will appear in the shop in about 2...
by johu
Thu Apr 11, 2024 4:37 pm
Forum: Renault
Topic: Renault Zoe (Continental) Inverter Reverse Engineering
Replies: 6
Views: 671

Re: Renault Zoe (Continental) Inverter Reverse Engineering

First cut of a breakout board with mini mainboard for first tests
grafik.png
by johu
Thu Apr 11, 2024 10:53 am
Forum: Tesla
Topic: Tesla Model 3 Rear Drive Unit Hacking
Replies: 639
Views: 134560

Re: Tesla Model 3 Rear Drive Unit Hacking

Good luck! Various proprietary solutions exist, would be nice to have an open source one :)
by johu
Thu Apr 11, 2024 9:54 am
Forum: General
Topic: SJ4 Pin in JP2 Pin Header in Main Board Version 3
Replies: 1
Views: 269

Re: SJ4 Pin in JP2 Pin Header in Main Board Version 3

No, this is just needed for actual resolvers as they output like +/-1V. Your chip likely outputs between 1-3V or something, so unipolar already
by johu
Thu Apr 11, 2024 9:51 am
Forum: BMW
Topic: i3 controller hacking from diyelectriccar.com
Replies: 226
Views: 55060

Re: i3 controller hacking from diyelectriccar.com

Great to read :) That's very strange as I'm running the inverter (on a Zoe motor) without the mod. I even faintly remember that the pin drew excessive current when feeding it 12V. Another user reported the mounting holes to be off and they fit my inverter perfectly. I wonder if there's different rev...
by johu
Thu Apr 11, 2024 8:30 am
Forum: Nissan
Topic: Nissan Leaf Gen3 Drop-in board
Replies: 27
Views: 1953

Re: Nissan Leaf Gen3 Drop-in board

Just tried opening the project and there seem to be some missing files: Fehler traten beim Laden der Footprints auf: Footprintbibliothek "/home/johu/Projekte/e-umbau/kicad/Nissan-Leaf-Gen-3-Adapter-Board/V0.0.4/Footprints" nicht gefunden. Footprintbibliothek "${KICAD_LIB}/JLCPCB/JLCPC...
by johu
Wed Apr 10, 2024 7:16 pm
Forum: Renault
Topic: Renault Zoe (Continental) Inverter Reverse Engineering
Replies: 6
Views: 671

Re: Renault Zoe (Continental) Inverter Reverse Engineering

Now continuing with some more gate driver research. The isolators are ISO7421 from TI. https://www.ti.com/product/de-de/ISO7421 They have one forward one reverse channel. Traced the 6 forward channels that gives me the 6 gate drive signals and the 6 reverse channels give me the 6 desat signals. The ...
by johu
Wed Apr 10, 2024 11:13 am
Forum: Projects
Topic: Jaguar XJ6 V12 will be electric!!!
Replies: 37
Views: 4823

Re: Jaguar XJ6 V12 will be electric!!!

Success stories make us happy :)
by johu
Wed Apr 10, 2024 11:06 am
Forum: Vehicle Control (VCU)
Topic: Zombieverter Updates
Replies: 9
Views: 518

Re: Zombieverter Updates

Thanks very much for writing this up - again.

If anyone feels harassed let one of the admins know. We can flag a warning and ultimately ban people who suck energy off the creative crowd.

To whoever thought it was a good idea to be rude: Chop wood if you have a bad day.
by johu
Wed Apr 10, 2024 9:20 am
Forum: Inverters / Motor Controllers
Topic: Hardware throttle limit/eco mode/reverse limit
Replies: 0
Views: 214

Hardware throttle limit/eco mode/reverse limit

Just drew this up for a customer so thought I might as well post it here. Pain: you have no VCU and no CAN communication with the inverter but want to limit throttle for whichever reason. Solution: limit max throttle output voltage with a shunt reference (or Zener, but they are less predictable I th...
by johu
Wed Apr 10, 2024 7:23 am
Forum: Inverters / Motor Controllers
Topic: Am I to dumb for Open Inverter
Replies: 21
Views: 1202

Re: Am I to dumb for Open Inverter

Sound like a cause for failure? No, 5V pins are on many other connectors. Can you please attach pictures directly to your post (attachment in Full Editor). When I click these imgur ones I only see a blank page plus they tend to vanish. This explosion looks a bit like you fed 12V into one of the ULN...
by johu
Tue Apr 09, 2024 6:02 pm
Forum: Charging
Topic: QCA7000 Foccci+Clara User thread
Replies: 17
Views: 919

Re: QCA7000 Foccci+Clara User thread

Great! Let us know how it went