openinverter forum

Kevin Sharpe wrote: ↑Mon Feb 03, 2020 6:33 pm

Zapatero wrote: ↑Mon Feb 03, 2020 6:26 pm So 3.6 Volts is the lowest i should go? Does this mean under load or open cell voltage?

Here's a useful guide from DIY Electric which AFAIK is accurate for both Gen 1 and Gen 2 Leaf batteries. I would assume these are measured under minimal load.

Battery_Charging_Voltage_2.png

Thanks a lot, that was perfect - alltough i modified it a bit as the numbers above are absolutely linear:

Update on the car:

The car pulls incredible strong until 4000 RPM, still pretty good after that. But when you hit the pedal at 3000 RPM that's awesome. Way more power than a stock GT86 / BRZ

I have been to a public charging station today - everything works as it should

Congratz!

Looks so cool.

0-100 in third gear approximately 6.7 seconds. Throtcur set to 6.5

Wow
I was expecting a slight power increase but not that
650A with the original power stage, unbelievable! Whats ocurlim set to?

ocurlim is set to 2000A, when i set throtcur to 7.5 i run into DESAT ERROR.
So somewhere here seems to be the hardware limit?!

I see, so it's disabled 750A RMS means 1050A peak - surprisingly high!

I think in your case where you want max performance it is good to have ocurlim disabled. That way the IGBTs are shut down slowly by desat detection when overloaded. Only downside, if you hit desat too often your IGBTs will eventually release smoke. "Often" is like a few 100 times, I heard power electronics experts say.

The wire bonds to the silicon will let go. Don't ask me how I know:) But, yeah, that's very cool:)

Mighty Leaf power looks and sounds like fun car to drive

Really nice build. That TIG welding, wow

Have you get the full 10K RPM from your Leaf motor?

Is the leaf battery pack ok with the currents?

From everything I've read all of the lead packs 30Kw and under are not happy over 80~100kw. No cooling stock. Likely you can draw more for a short time, who knows the damage it will do.

ianmactag wrote: ↑Wed Feb 19, 2020 4:04 am Really nice build. That TIG welding, wow

Have you get the full 10K RPM from your Leaf motor?

No, in my opinion that doesn't make sense at all with the nominal 350 Volts of the Leaf battery pack. Power is noticeably decreasing after 5000 RPM! I even use the gears, seconds for fast acceleration and third for city driving, fourth for highway use, even fifth sometimes. I can easily change gears up, e.g. from 3th to 4th, while driving. Shifting down is a bit more tricky. Best acceleration is between 2000 RPM and 4000 RPM. I think i maxed out the capabilities of the leaf inverter.

JaniK wrote: ↑Fri Feb 21, 2020 6:06 am Is the leaf battery pack ok with the currents?

I have no idea, i will find out

SUCCESS: The GT86 is officially approved by the german association for technical inspection. More updates with new pictures will follow tomorrow

Zapatero wrote: ↑Mon Mar 02, 2020 5:05 pm SUCCESS: The GT86 is officially approved by the german association for technical inspection. More updates with new pictures will follow tomorrow

Congratulations!

Very nice!
You can write about it here if you want: https://openinverter.org/wiki/Germany

Congratulations!
nice build

Finally the car has the E-License-Plate.

Still i have to install the electric Air-Conditioning-Unit. But everything else works!

Congratulations Zapatero on a successful build, you have done a fantastic job, the car looks amazing

Extremely nice and impressive build! Congrats on the official aproval.

Very nice installation!
I'm curious how you did with the integration of the dcdc .
Did you connect it after the contactors and are you activating it with some delay to handle the precharge for the contactors?

Kalle wrote: ↑Wed Apr 01, 2020 10:48 am Very nice installation!
I'm curious how you did with the integration of the dcdc .
Did you connect it after the contactors and are you activating it with some delay to handle the precharge for the contactors?

The DCDC is activated by the same relay that switches the high voltage positive relay. It's not possible to run it over the precharge relay as it draws too many amps.

Here is my final teaser for the GT86 Conversion

Beautiful video! Beautiful car!
I especially love the use of the start/stop button. Is that the original or a replacement? I may steal that idea

-Isaac

That is a brilliant conversion