My head hurts hahah. I'm not sure if I'm surprised how close the Prius, MGR and HSG are, or how much different the leaf is

I need to download this and have a proper play...

You should be able to 'roll back' to pre-merge at the very least? My git is rusty, but I remember doing it far too many times...

I've got one of these supremely high quality items... Cheapy Amazon LCR meter . Like I say, I don't trust it at all, just because it's so cheap, but I have to admit it reports reasonable numbers for a range of (known) inductors, and is handy to measure very low resistances too (motor phase windings ...

No problem! Just an LCR meter... like you say, I don't know how much I trust it, but it does come up with good numbers on known inductors. The HSG is a small motor - about 150mm dia, 100m length stator, rated circa 12kW (depends which OEM you ask!) designed just as a starter/generator for mild and f...

If I've measured right, I get (very approximately) 4mH for the HSG (both Ld and Lq)

Is it possible to measure Ld and Lq from a motor?

Edit: Should've googled first, of course. I'll see what I can do with a Hyundai HSG (SPM), if that's useful?

Do you account for changing Ld and Lq with current?
https://www.physicsforums.com/attachmen ... pdf.79167/

Done. Can you 3D print an entire open source M3?

(Haven't you hacked it all for free yet? hahah)

Sorry to hear this :( Whilst it would be a massive loss for the OI community if anyone were to leave, I can certainly understand the sentiment, and of course have no right to ask you to stay (but I will anyway :-) Please stay!) I'm not sure I have any clever suggestions for 'solving' the problem. Re...

I used to sell components for the heavy commercial and industrial refrigeration industry - massive surge vessels, valves, pumps etc for fairly nasty refrigerants like ammonia, R22 (before it was banned), Co2... Valve spindles were sealed with two o-rings, a gap between them filled with refrigeration...

The company I used to work for had to send some brochures and catalogues to some customers in Sweden. Turned out it was cheaper to send me (from the UK) by plane, hire a car, pay petrol, meals, hotels etc than to send them by courier... Sorry, that probably doesn't help much :) Had bad experiences w...

If you UDP, you'll want/need to put some way of making sure packets arrive in order (a simple counter should be enough) Could probably leave the http server stuff in, and just send the esp into a tight loop (with yield() ) doing the UDP forwarding upon browsing to the page (so you'd need a power cyc...

I guess with johu's binstream command, you'll be specifying what you want logged? And yours is fixed so you know what's coming? Oh, sorry. Yes, a full param dump to go with each log would be handy. Can't see why the json wouldn't be good enough? Doesn't have to be massively fast, only has to be done...

Really must get to grips with the linux command line, I've spent far too long relying using windows. Any chance that you have another line of Linux black magic to receive tcp the data? I used netcat to receive, but then did some bitrate calculating on the ESP side. I did initially use the network i...

I don't think I even saved the script (arduino, sorry) but something like this: const uint ServerPort = 8888; WiFiServer Server(ServerPort); WiFiClient RemoteClient; void setup() { Server.begin(); } void loop() { uint8_t ReceiveBuffer[30]; while (RemoteClient.connected() && RemoteClient.avai...

I suppose if you stream data to a laptop, that's technically there, right? hahaha

Ah, of course. Good point!

Dashcam cards seem to last ok. I wonder how hard it would be to get the ESP talking SATA... hahah

Nice

Nothing wrong with relying on the user to keep an eye on free space etc (especially if there'll be a 'start logging' button)

Yeah, it depends where the bottleneck is. Usually the batteries (especially short term, inverters and motors tend to be thermally limited so can go a bit higher for a few seconds). So that's a DC power limit, so AC amps (and hence torque) can be quite high at low rpm. At one extreme (locked rotor, 1...

Not bad :-) I think there's a way of disabling brownout detection, and then monitoring '5V' with the ADC, but that'd be rather unreliable... Although there might be enough bulk capacitance bulk capacitance on the 12V line to catch something. Will probably depend too much on the individual system and...

Why assume constant torque?

75kW and 1000kg gives me 4.65sec to 60mph (ignoring physical limits like traction at low speeds and drag)

Speedholes™

A binary stream would be a fantastic addition! Agree on the 32bit, any point in being able to select which variables to stream, or just always send everything? Yes, datarate is more likely to be limited by the serial connection (and SD card maybe? not sure how good the ESPs are with that). I've just...

Ah, performance air intakes eh?

I was going to suggest that it may be possible to at least graph stuff in the browser - doesn't need a masses amount of support from the server (ESP) but relying on javascript for graphing a few million points may be optimistic... No concerns with wifi speed imho. I've a few ESP32s here for 'playing...

Does anyone have any photos of the (rear) inverter open? Or front!