Does the heatsink temperature spike happen always at the same speed?

I don't think you necessarily have to lock the output gears. As long as the PSD is locked, just make sure to ramp the torque slowly from standstill to let the oil pump engage the clutches without too much heat from slippage. Some kind of special software limit would be a good idea.

Or, of course ...

Are you looking specifically for a laptop connected one?

Out of the scopes available to me I most often use my very portable self-contained Hantek 2000 series. It's very portable and very cheap, but still a real oscilloscope in my book. However, it doesn't have features like CAN decoding. It's just ...

Superchargers work perfectly for me with pyPLC. I do have PP connected, I'd start with that. I wonder what johu's circuit was like, because it also worked

Jacobsmess wrote: ↑Sat Jan 13, 2024 4:45 pm Only got the number if teeth there from what I can see but useful nonetheless... Although unfortunately the rest of your post suggests it's unlikely I'll find a replacement flange with my required bolt spacing.

The diameter is in the photo with the calipers. The sealing diameter also.

What I'd love to see is adapters for different propshaft flanges to the exg spline on the gs450h. Any chance you could measure the gs450h output shaft splines for me? Major diameter, nope diameter and number of teeth I guess. Thanks


I already posted the number of teeth and major diameter 4 ...

Have you considered replacing LA with 6S LTO?


Looks interesting but:
- Expensive (can be offset by the durability, but only if you don't destroy it prematurely)
- Needs an enclosure
- Needs a BMS with low and high voltage cutoff. A low voltage cutoff is a lot of work to integrate to the car's ...

Maybe it's not a problem if it's stupid and predictable enough. Like, exactly every 24 hours, exactly not at all or exactly 20 minutes, based solely on the voltage at the 24h mark. This way it will not do stupid things like stay on indefinitely, stay on too short, stay powered off for too short ...

A new year's report:

The car killed the main contactor again, the one I replaced. I already replaced it and the car is running again. This time I have strong suspicion that the contactor had a manufacturing defect. I cannot imagine how the car could have broken it like this. It only makes a sound ...

You could add a way for software to keep the board powered as long as the program decides to, after it has woken up using the hardware based method. Basically just parallel another input to the P-MOS, driven by an output from the mcu, but make sure it doesn't backfeed into PP. This would allow ...

On other news I charged 5 kWh from a HyperCharger with 30 kW/80A (the CHAdeMO pins were rather warm afterwards). I think with that we've got the major brands covered.


Has focci+clara been tested on Delta chargers? Or, has anyone gotten pyPLC to work on those either? I know I didn't.

I haven't ...

I think this was the best video if you want to see the structure and parts. They're filming a lot of the stopped production line and beta builds (e.g. at 37 minutes). There's even a shot of how the exterior panels are attached in a crashed truck after 42 minutes. Just skip over the parts where they ...

The differential will almost certainly fail if you use it as a speed doubler by locking the other side. My bet is it won't last one full battery worth of distance. Your best hope is it will weld itself for you instead of exploding.

Isabellenhütte has now published information about IVT 3 Pro which comes with an isolatiom monitoring option: https://www.isabellenhuetteusa.com/dc-c ... vt-series/

Maybe it's worth asking whether it's available, and what's the minimum quantity and price?

The Leaf motor and Prius inverter combo weighs probably like 75kg. If that's not an issue, go ahead.

Other common motor options from cars aren't much lighter than that. There are less common options from electric motorcycles and very small cars (Twizy?) that could be more appropriate.

As for ...

The soldering result looks like:
- you should have used more flux
- or with the same amount of flux would have had to finish quicker in order not to evaporate all of it
- adjusting to a lower temperature could have helped if there was margin to lower it, or if a higher temperature would have allowed ...

Make sure to note that you need to pay VAT for items purchased from Norway. Unless you manage to file it as company expenses, of course.

Is it possible to modularize it so that it's possible to make a minimal build, but also possible to make a build that adds the VCU functions and contactor control capability as an extra layer but uses the exact same code for the actual inverter implementation as the minimal build?

Aside from VCU ...

If you're looking for reservations for populated boards, I'd like one.

The boards come from JLCPCB with everything but the QCA7005, the big connector and the RF transformer in place, right?

I think I might be of help testing this as I have two running conversions and only one of them has CCS so ...

What I did for my GS450H gearbox was I went to a parts store and asked for ATF for a Prius. They sold me some kind of aftermarket "WS compatible" fluid of their own brand. I mixed it in with whatever was in the gearbox. I think it's gonna be fine for a long time. I would do the same for the 300H.

I could be wrong, but my understanding is: The field weakening ability of the inverter diminishes to almost nothing as the battery voltage goes that low. The current needed for field weakening is the same regardless of the battery voltage and motor speed, and a certain amount of voltage is needed ...

Better hope the grid tie inverter also reacts to AC voltage changes, because cheap offgrid inverters surely won't implement any "frequency droop".

Random thought: If the grid tie inverter does react to voltage changes and the system still isn't stable, it could help to leave a length of wire ...

I would assume it's down to resolver wiring or offset, or phase wiring.

If absolutely necessary, it might be possible to rotate the resolver in the MGR slightly by using the center opening and the bolts behind the motor. Never tried that myself and I doubt it would help: https://youtu.be ...

I've never seen a charger have its own relay into the main battery. It's always paralleled with the inverter and DC-DC and subject to the same precharge process. What OEMs are you talking about @arber333?

Uhi22's example calculation is a good starting point. If you're using 50mm2 cables for a higher performance application you probably also have a pack with less internal resistance so the ratio remains something like that.

Continuing from it, what happens is that when you cruise, you're taking about ...