Just wanted to share this because it's fun to watch. No real updates at this point. I'm kind of stuck on a few things. I can't get any new FOC firmware beyond 5.0 to load successfully but that's ok for now since 5.0 works. I'm not sure how to add an .ods file to the library so that the motor temp se...

Here's what it came up with in order to transmit over CAN to the GCU: To transmit the torque, rpm, pot, pot2, and tmpm spot values from the OpenInverter to the HTG GCU, you should follow the CAN communication protocol for both devices. The OpenInverter's CAN communication documentation suggests that...

Alright, I've been playing with ChatGPT-4 and having a lot of fun. Since I'm not a programmer and don't want to damage anything, I asked the chat for help. As I've stated before, I need to send torque, rpm, pot, pot2, and tmpm to the GCU and I'm having some challenges. The first is that torque isn't...

Just posted in my project thread but I have the motor doing what it's supposed to do. I'd been working with a failing current sensor from day one. Now that it's fixed, all's well.

Just received the new current sensor and I have a working setup with no errors! Could not be happier. Went ahead an purchased a CAN shield for my Arduino so now maybe I can teach myself how to read what's being sent and get it mapped appropriately. Once that's done, I can finally move on to initiali...

Trying to figure out how to send CAN messages from OI board to my GCU. I've been trying to learn but it's just not clicking. I'm out of my depth here and hoping someone could help. The GCU has a built-in sniffer so I can see that it's transmitting information and being received, just not sure how to...

It looks like I can get the current sensor by itself but I think I'd rather get another inverter. Just need to find the time to get to the junkyard.

Well... tested all the resistors in the current sensors. R62, 63, 71, 72, 41, 45, 42, and 46 all measured what they're supposed to. No continuity issues at CONN2 or CONN7, everything doing what it's supposed to. That's when I decided to take another look at the actual current sensor and I noticed a ...

Orlando, FL

No real updates. Had our 4th daughter in October and work has been very busy so haven't had much time for the project. Still need to diagnose the incorrect voltage at the divider for the current sensors. I did, however, get canbus messages sent to the GCU so I can start mapping them. Once I get RPM,...

No worries about the Zombie. I'll just use it for other VCU things. Main concern now is this HICUROFS1/2 error I'm getting. Measured the resistors in the voltage dividers and they're all good but there's definitely a problem somewhere else and I'm not 100% how to track it down. When I measure voltag...

Thank you! I've been checking resolver connections in manual start with no hv. I actually have a zombieverter controlling precharge and contactor so udc switch is set to 0 on the prius board which allows manual start and run mode regardless of hv connection. My plan was to get the parameters set so ...

Because I'm learning along the way and didn't know that I shouldn't. Thank you for clarifying.

These are the 4 plots I get using 8 pole pairs.

Thanks for the feedback. Unsuccessful finding pole pairs of the resolver but I read somewhere that resolver pole pairs typically match motor pole pairs and I have 8 motor pole pairs. Used an led connected to motor windings to count the pulses through a full rotation which gave me motor pole pairs. I...

5 months since I looked at this thing and I'm finally making some progress. Found out the ribbon cable I had connecting the idc connector to the stock prius external plug was bad. This caused me so many headaches! Removed it and just running a bunch of jumper wires for now. Any insight for finding t...

So close!

So then it should be
Prius: Desc: 34 Way:
1 Ex + 21 MG_2EXCA
2 Ex - 18 GND
3 Sin + 16 MG2_ENC_1
4 Sin - 20 MG2_SINA
5 Cos - 19 MG2_COSA
6 Cos + 17 MG2_ENC_2

Does that look correct?

Really struggling with resolver feedback and a HIRESOFS error while going through the FOC tuning steps. Can someone confirm I have this connected correctly? Using jumper wires from the 34 way IDC to the factory Prius connector.

Struggling with resolver feedback. I know which wire pair is the exciter and the other 2 are sin/cos but I can't get any meaningful feedback, just noise at either 0 or 365 degrees. When i ran the motor in open loop, the output shaft was turning so i assumed the rotor would turn when i manually spin ...

It works!!! No pictures tonight but I got it to turn. Got my new Prius board from Damien and realized some mistakes I made last time around. Followed all the steps for the first run, hit enter, and then there was a loud clunk and the output shaft started to turn. It ran for about 3 seconds and then ...

Brought it back down to the 110v and I still get an overcurrent error. Pictures show conditions when it happens. Motor runs longer but still triggers overcurrent.

It works!!! No pictures tonight but I got it to turn. Got my new Prius board from Damien and realized some mistakes I made last time around. Followed all the steps for the first run, hit enter, and then there was a loud clunk and the output shaft started to turn. It ran for about 3 seconds and then ...

How many solenoids are there total? I believe there should be extras to control the input shaft clutches ( K0) ? How much of the circuit different just for the 8 speeds gear? how about the electric oil pump that build in, you will have to relay on that throughout the EV operation? is that sufficien...

Good morning everyone. I have a HICUROFS1/2 error that I'm trying to figure out. It seems to happen as soon as the MG2 current sensor is connected. When I send 12v to the board I can hear it whine if MG1 is connected, but as soon as I connect MG2, the whine is barely audible and I get the error. Inv...