Any driveability quirks/complaints?

Topics concerning the Tesla front and rear drive unit drop-in board
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Re: Any driveability quirks/complaints?

Post by arber333 »

johu wrote: Sat May 01, 2021 7:55 am Been asked for many times. I suggest someone with a Toyota inverter tries it first :D
Maybe I can try to keep the basic slip calculation and just replace V/f by FOC? Hmm.
I volunteer my Mazda for testbed 😇.
I use gen2 boards modified for Volt inverter. I have Lacrosse ACIM motor here with resolver. I also have straight gen2 inverter in Mazda and it works with AB encoder. So i am able to test both versions. Also if you insist i can make Mazda work with single channel encoder.
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Re: Any driveability quirks/complaints?

Post by jon volk »

Took the car out for a thrashing this morning with the recent upload and did not experience any elastic throttle feel. I could push hard on the regen into a corner and power out with no transition delay.
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Re: Any driveability quirks/complaints?

Post by Jack Bauer »

I have a gen 3 prius inverter and Siemens 1pv5135 in the E39 so happy to test foc. Mr.Toyota won't let anyting silly happen...
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Re: Any driveability quirks/complaints?

Post by Boxster EV »

jon volk wrote: Sat May 01, 2021 12:10 pm Took the car out for a thrashing this morning with the recent upload and did not experience any elastic throttle feel. I could push hard on the regen into a corner and power out with no transition delay.
Just tried it - Elastic has gone - Fantastic.
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Re: Any driveability quirks/complaints?

Post by Jack Bauer »

The Panzer is now running the latest VolkSoft(tm) firmware. About to head out out on a voyage...
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Re: Any driveability quirks/complaints?

Post by johu »

I've tried adding the Volk mods to the latest software, can somebody test whether I succeeded?

Diff is here: https://github.com/jsphuebner/stm32-sin ... e6ac39730a
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Re: Any driveability quirks/complaints?

Post by arber333 »

johu wrote: Tue Aug 24, 2021 5:52 pm I've tried adding the Volk mods to the latest software, can somebody test whether I succeeded?

Diff is here: https://github.com/jsphuebner/stm32-sin ... e6ac39730a
Hex please... i will just go around the block :twisted:
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Re: Any driveability quirks/complaints?

Post by jon volk »

Let the personal injury claims begin.
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Re: Any driveability quirks/complaints?

Post by Boxster EV »

I’ll give this a try when back from holiday next week
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Re: Any driveability quirks/complaints?

Post by arber333 »

johu wrote: Tue Aug 24, 2021 5:52 pm I've tried adding the Volk mods to the latest software, can somebody test whether I succeeded?
Johu, can you post .hex file so i can load it to Mazda asap? Bin doesnt work for me. Tnx
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Re: Any driveability quirks/complaints?

Post by johu »

Here you go.
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Re: Any driveability quirks/complaints?

Post by joromy »

Is the Volk mods for tesla only, or can I use it on any acim?
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Re: Any driveability quirks/complaints?

Post by jon volk »

Should be applicable to any acim motor as its just a modification of the fweak value at low throttle inputs. Theres a parameter added to adjust. If this function is not desired, then that value just gets set equal to fweak.
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Re: Any driveability quirks/complaints?

Post by arber333 »

johu wrote: Tue Aug 24, 2021 5:52 pm I've tried adding the Volk mods to the latest software, can somebody test whether I succeeded?
Well traction is very good and i am satisfied. But there seem to be no regen present. Not for throttle release or for brake signal. Even though i have it set to -60% in code. Is it possible you changed orientation of your math?

tnx
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Re: Any driveability quirks/complaints?

Post by jon volk »

Maybe try bumping it up more? I noticed the higher fweak did reduce regen, but it was a matter of readjusting parameters for me.
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Re: Any driveability quirks/complaints?

Post by johu »

Will check in code as well
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Re: Any driveability quirks/complaints?

Post by jon volk »

Curious if there was any further feedback on Johu's integration. I have not tried that file since my own setup has been running flawlessly and Im terrified to change anything haha.
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