Not a guru, but the factor of 1.5 comes from the power-invariancy or amplitude-invariancy stuff. Detailed explanation can be found here: https://e2e.ti.com/support/microcontrollers/c2000/f/171/p/286510/1000558#1000558 In your code you're using power-invariant form of the Clarke Transformation, so th...

Installing the complete toolchain with debug, flash etc. support on Windows with a proper IDE needs some effort. I created a how-to for myself, might convert it to a wiki some day :) Hey Nailgg any progress on that how-to ?? Sorry for the late reply, unfortunately no. I couldn't keep up with the co...

My fw is based on version 4.18R but I have too many custom changes for my particular setup and it might not work well for you. Still attaching the bin/hex files but try it at your own risk! Instead of -1/0/+1 on the reverse/neutral/forward direction I also have implemented a "parking brake"...

Sometimes very short spikes cannot be monitored by CAN or UART. While working on the issue, I added a spot value called "maxspd" which keeps the highest RPM the encoder ever read since the inverter power up. Changed the code a bit, like below: It would be nice to have the same on "ma...

Yes, but my sensor is totaly enclosed and is automotive inductive sensor. This should mean it gets funny ticks only after signal enters the main board. I also remember i put a diode from reverse pin towards reverse switch to keep reverse light from activating if i intentionaly activate BMS pin. Cou...

Can you monitor the speed with a data logger? Is there any spike? I had a similar issue too. Nothing was happening at high RPMs, even at full throttle. But it was tripping at very low speeds. Later I found that it was my encoder (US Digital E6-512-984-NE-S-D-D-B). Inside the encoder, there is a nylo...

Hi J did you implement some PI softening of throttle zero transition because i still feel quite a surge when i quickly release throttle through 0 and then press it back to positive torque. Late response (been away for a while, back now) I also feel the same behavior. When the throttle is near the z...

If you have an Arduino Uno, you can remove the ATMEL chip from the board and connect the RX/TX/GND lines to it, and use it's usb port as a usb/serial adapter. Just a suggestion if you already have it, it's pretty common.

If the inverter is echoing back different characters, the baud rate might be incorrect but you said you already tried 115200 with 2 stop bits. Have you connected the ground of your PC with the inverter ground? Also if your USB to Serial Converter has +5V/GND/RX/TX pins make sure you have +5V unconne...

Teknomadix wrote: ↑Tue Jul 23, 2019 9:27 pm Also. Would like to suggest officially naming this the "Heubner BMS"

Johannes is probably too kind to do this, but I feel compelled to correct this before you have hundreds of them manufactured: It's "Huebner" not "Heubner"

Suggestion: I think it would be nice if we had a like, love, thanks etc. reaction buttons under the posts. Just saw some addons on the phpBB community adding this feature, but unfortunately I couldn't find a working demo. EDIT: Just found a demo, but in French :) http://www.ezcom-fr.com/viewtopic.ph...

Finally! The first test drive with some serious power. At least more serious than anything so far. What was the problem? The motor is spinning backwards, as indicated by "angle" running from 360 to 0°. And that means we need NEGATIVE iq reference! Now I can spin to 4000rpm without trippin...

can tx opmode 468 0 8 160 can tx opmode 468 1 8 178 why the 8? If this is two byte message shouldnt i use 2 instead? can tx opmode 468 0 8 160 can tx opmode 468 8 8 178 can tx PARAMETER CANID START_BIT LENGTH GAIN With the first line, you define a signal of 8-bit length that starts from the bit 0. ...

Also when I set iqref to a positive value it reads a negative value :? It looks different when I put the car into gear and put the hand brake on. Then the commanded id and iq values are hit spot-on. Its only when the thing starts moving that things go weird. Anyone? Welcome back :) So if it works n...

Hmm. That sounds like a nice little hack. So your message is 0xA0 0xB2 which is 41138 in decimal. Maybe you can send din_forward or even better opmode with 41138 gain. Might be worth trying.

With the current software you can only send the existing parameters like udc, speed etc. The software needs to be modified in order to be able to define arbitrary messages through the web interface (or console) other than the existing parameters. Maybe Johannes or someone else could implement sendin...

This could easily be done with some minor software modification, by placing the lines below at the end of the Ms10Task in stm32_sine.cpp. But this would send your message in every 10ms of course. static void Ms10Task(void) { ... if (MOD_RUN == opmode) { uint32_t myCanData[2] = { 0xA0B20000, 0x000000...

The Zero-EV system runs all within the inverter control board. So they are probably using a secondary processor on their control board for sensing the wheel speed. Maybe something that acts as a man-in-the-middle between the throttle input and the main inverter mcu. I think they don't like to share...

Please don't get me wrong, I don't know what power are you expecting out of your inverter but at powers around 50kW+ you'll probably have serious issues with those bus bars

Oh that makes sense. Johannes is also encountering a similar "trip out" issue on his Leaf motor, so he was working on implementing FOC for faster current regulation, here (not finished yet): viewtopic.php?f=7&t=153&start=20

take the inverter out but it's not as bad as i expected. I measured 1.5 V on pin 5,7,8,10. EDIT: With no current flowing through. Yes, 3.3k/4.7k gives you 1.5V, my mistake. Looked at pins 6/4 and 11/9 and the voltage went up as i took ocurlim param down from 2000A to 400A Actually as you lower the ...

I would do some hardware debugging to find where the issue is. First see the main board schematic here: https://github.com/jsphuebner/inverter-hardware/blob/master/mainboardv1.1.pdf You have a LM2901 voltage comparator for over current protection on your main board. When the voltage on ADC5>PB7 or A...

If the ocurlim is set to 600, then the issue must be arising from something else than a real over current. Especially if you aren't enabling the forward/reverse switches. I'm not sure about the Leaf hardware as I haven't used it before, but the error inputs are OR'ed on the main board, so the softwa...

Are you getting the same error when there is no actual voltage at the DC bus, i.e. when batteries are not connected? What is the current ocurlim, il1gain and il2gain values? Have you calibrated your sensors and set ocurlim properly? There shouldn't be a current spike when the main contactor closes. ...

Adding more ki eventually leads to the motor spinning even with 0 id and iq commanded. I guess thats down to the remaining offset of the sensors. Yes, probably. Maybe you can remember I tried to achieve zero current offset here: https://openinverter.org/forum/viewtopic.php?p=416#p416 When the inver...