Damien has competition, you seem to be collecting projects

Gregski wrote: ↑Fri Mar 06, 2026 3:37 pm so here's the general idea

no floor jack, it's sitting under it's own weight, strength what ever it's called

Snapshot_2.JPG

Looks like a marketable product you have there

For the time being this project is once again on HOLD. I purchased a second Prius OI board as I had damaged my original one (self inflicted due to relay coil back EMF) and I cannot get the "new" one to program or any lights to work.

So..... I went In Search Of (if you get that reference ;)) a used ...

Thanks Matt, two different procedures is the confusion inducing thing. I am not sure, to your point above if it actually matters, but as I cannot get the syncofs to work correctly with my combination it does present a potential factor.

:oops: Update: A self-inflicted situation is the short answer. :oops:

How/why? Well, see when you move from one procedure to another and do not completely restart from "0", things get missed. I am betting there are a few here who have done this, damned sure I have a time or two.

So what happened ...

Question: What device are you using to check for an isolation fault?

You need to monitor both the HV DC and AC sides to be "safe".

I did not think of that :doh:

But both plots are from 0 motor volts, the only difference is what throttle applied fist or not.

Current jitter testing plans is to re-run tests w/o any HV:
If jitter is excessive
- Disconnect one resolver pair at a time & retest
- Disconnect progressively from ...

Update, I *think* I found at least part of the problem. When I checked jitter again, I found it to be nearly 360* :shock:

I then power cycled the VCU and inverter and rechecked, jitter now <1* and was like WTF!?!?!?! :? After another Run, jitter back to well over 300* and that ain't gonna work ...

Trolling for suggestions I guess. I verified and re-verified all my wiring (resolver etc) and I can run the blinky test and motor in SINE firmware just fine, but 100% no joy with FOC. This leads me to think there is something in the resolver circuit or inverter pinswap (5 for Gen2 Prius), or.... an ...

Yea, if the coolant becomes charged, so is the WHOLE VEHICLE! Also, since EV "coolant" never ever gets to anything close to it's boiling temperature, a pressure cap and super tight joints that would survive elevated pressure are total overkill.

Been working on getting the Prius Gen2 inverter to cooperate with the EM57 Leaf Gen2 motor. ACK! Not sure how to validate the resolver wiring, the Syncofs Tuning video sort of left that part out except to say that "wierd behavior" if wrong. I have such, but worked thru all permutations and it only ...

Another data point, EM57 (Gen2 Leaf), year unknown: 96007D0055

Update!

While the squareback is no more, I have located a potential replacement and because of improved component availability (read: Brat Industries and having sold the MGR) I plan on using a Leaf EM57 directly coupled to a beetle transmission :D

I was able to get the Gen2 OI board updated ...

Update: As of 24 hours ago, the Openinverter site is accessible from my rotting fruit devices. For the record, I changed nothing, but pleased regardless.

As if by magic, now working. Problem is, I do not know why or how, so cannot share a solution :shrug:

Attempts continue, following the Hot To flas an 8266 etc, espressif docs, Johu's instructions and those of others.

I can get as far as the FSBrowser and the file systems, but no further. When I try and update the firmware, I get "Update error: ERROR[10]: Magic byte is wrong, not 0xE9". I searched ...

My guess is your device has more recent software, IOS 17+ maybe? Firefox was depreciated for 16 and earlier, I have only Brave and Safari as options on them

FYI, I have two fruit devices (iphone 8 and Gen1 or 2 ipad) that cannot access the Openinverter site, the "check if you are human" does not complete.

Of the two devices, the newest is IOS16.x.x, and this seems to affect all currently avaialbe browsers for these older devices.

Just thought I might ...

Restarting my Voltswagen project, hopefully sooner rather than later, depending on a vehicle purchase :)

Having lost the custom ID/PW on the system (my fault for not recording it where I would ever think to look :( ), I did get the basic .bin reloaded, but cannot get past the update screen on the ...

NICE WORK Matt!

The stock Leaf PC resistor is 40W 30ohm based on the one I removed that failed under similar conditions. If the DC-DC is active or the inverter is "ON" during PC, this can cause an overload. Also, if the voltage setting for PC is too high, the PC system can remain on for too long and overheat the ...

I actually tested a "regular" line voltage hair dryer at similar DC voltage, worked just fine

de-ICEing complete!

This is the pile of stuff that won't be going back to the car, at least not in that shape or form. T4 engine, its transmission, firewalls and insulation, fuel tank, filler hoses, and so on. Also just pure trash like old window seals in the plastic bags.

https://ceravyn.net ...

Maybe substitute a vacuum sensor for oil?

geduxaz wrote: ↑Sun Feb 06, 2022 12:05 pm I can make burnouts on the concrete.
Now 200V, will add one more bank and make 300V

Very Nice!!!!