Gotcha, thanks.

johu wrote: ↑Fri Feb 12, 2021 8:49 am ...idc is only updated in run modes, thats why you can set it in stop mode.

duuhhh of course...

Evening all, I seem unable to set UDC from a CAN message, but setting IDC (for eample) works fine using the same message ID, start bit, bits, gain. Seems the CAN message sets UDC, but it gets overwritten almost instantly from the analog pin. Is this intentional? (If so, I'll change the code here to ...

Thanks, so I should be ok just to get it spinning whilst testing. But perhaps best to move to foc firmware now I know the inverter itself is fine. Still waiting for the sin/cos encoder

I've been looking at the serial output from the Honda inverter unit. Using the logic analyser, I've narrowed it down to 10400 baud, 8 bytes, equal parity, 1 stop bit. There are 5 packets being sent out in a loop, each made up of a ID byte (either 0xE1, E6, F8, D2 or D5), four bytes of data and a che...

Got the DC-DC working. Far too easy. All it needs is HV (>55V, <220V), 12V on its output, and one line (black with orange stripe) pulled high. If HV is too low or too high it'll shut down, as will dropping black/orange, but comes back as soon as HV returns in range (no reset etc required). Strong 13...

Certainly a possibility frequency shouldn't be an issue, would probably have to invert the signal to get higher currents at lower speeds, but it'll need at least a mosfet anyway. I'm not sure what the 'optimum' current/speed relationship looks like, it may not be critical.

A little more progress over the weekend... Attached everything to a sheet of ply to keep things together, and to stop the motor taking off if/when it started spinning :) I'm using an old car battery for both 12V and 'HV' at the moment, but have something better on the way. First things first, powere...

Playing a bit more with the alternator today. https://lh3.googleusercontent.com/pw/ACtC-3f-zu8UuljqxwggSQP9xwVYhaA1zffD4m30iJtHyPyzmXKqO3jrNF6jlTj--AYLy-rM_DM2NLVDi0YD8WC8sG85IqepcY9gj1XDuIvkTJGUvYddsGo4UfDn09boQuqDD3tv9OXYxrHx0JCfcjQHIhujJg=s800?.jpg Seems to be 6 phase, Wye connection. I'll separa...

One data point: I ordered my openinverter board last week, and it arrived today (thanks Johannes, brilliantly packaged) complete with customs form and address labels on the box. No vat or customs charges for me! (Although that's probably my good luck used up for the year...)

Yes, the Hyundai BSGs are an interesting unit - 3 phase motor, water cooled, some form of encoder built in... would be a good option, but they're pricey over here even salvage. Some of the 48v mild hybrid BMWs even have a BSG with internal inverter (ie, no good for us, but if drivable over CAN, woul...

Excellent, a good chance of at least one thing working well then

Nice project! Have you had a look at hub motors? I don't know whether they are any good, but something like this might work well in a small bike: https://www.amazon.co.uk/NBPOWER-Electric-Bicycle-Brushless-Non-gear/dp/B07Z98YYP3 Thanks :) Yes, hub motors would be easier (and give more room for batt...

'ning All. This will probably be a slow one, but may as well get started! I have a 2013 Honda CRF250L m/c. It's running and road legal, but is starting to show issues with the ICE, including reduction in compression, slight leaks on valve seals, and wear on the countershaft splines - it'd need top e...

...duh, you're of course entirely correct, not sure how I managed that...

Ah, thats neat using three phases of an MG both both mains in and out. You use an isolated neutral then - I'm trying to work out in my head how to tie neutral and earth and still get 230VAC RMS on live without popping fuses (230VAC RMS = 650V peak to peak, higher than the voltage booster output I th...

Definitely. Initially at least, I wouldn't be exporting at all, but a serious consideration if/when that's implemented. A 'simpler' method would be a battery charger, with the/an inverter powered from the DC, (so impossible to export to grid) but it seems neater to use an all-in-one unit like the To...

It'd be a shame to lose the backup, and I'm not worried about rules and regs particularly. Let's keep it hypothetical

True, inductors will have to be manufactured as well. They'll be fairly large!

Apologies if this is the wrong subforum, it seemed the 'most' appropriate. This seems a bit too simple, and I'm wondering what I'm missing: Prius or similar inverter, plus control board(? with modded software). Use two IGBTs (one of the three half-H-bridges) from the MG1 side as mains (230V, 50Hz) l...