That would make sense. The numbers are straight out of the app Car Scanner (v. 1.67.9 carscanner.info) and the effect is the same when displayed in the app. I'll try to see if we can get some full throttle data to compare the highest voltages observed on the bus directly with the numbers in Damien's ...

Here's a plot of the DC bus and battery voltages as reported by the OBD interface that my wife made from a 1.5h drive in her Gen2 Prius. Interestingly, the DC bus voltage is actually reported to be lower than the battery when the car is driving very slowly. These data are from stop 'n go traffic in ...

I'm a little confused about the current sensing. If I understand the Patreon schematic correctly, both GIVA and MIVA are connected to the same input on the MCP602SN op-amp via individual resistors (and similarly, GIWA and MIWA are joined).

I thought GIVA and GIWA are the current sensors for MG1 ...

Has anyone managed to run a Gen 1 Prius inverter? There's some interesting info on the development history of the NHW11 (2000-2003) Prius from an even earlier Japan-only predecessor in this paper written by Toyota engineers: "Development of Electric Motors for the TOYOTA Hybrid Vehicle “PRIUS ...

imwoody36 wrote: ↑Tue Jul 28, 2020 8:06 pm im in. will make myself avail when you tell me.

ZooKeeper wrote: ↑Tue Jul 28, 2020 9:05 pm I too would be in for a Google meet as I am always open to Educational opportunities.

I'd greatly appreciate it as well. Thanks for the offer!

Would it help you if I donate a gen 2 Prius inverter to you? I have one that's mostly complete and would be happy to leave it in your capable hands.
Damien already has at least one Gen2 Inverter, what he doesn't have is an identical Gen2 specific control board.


Ahh, I see. That might make it ...

Excellent. Dont forget to save parameters. Now when you command a certain id you will get that current or close enough. The parameter file I shared was from a gen 3 inverter so that does indeed need a pin swap. I don't have a gen 2 controller otherwise I'd make a video showing how to do all this ...

Here's a detailed disassembly report that includes pictures of the rotor - Figures 4 &9. Looks like 8 magnets / 4 pole pairs.

REPORT ON TOYOTA/PRIUS MOTOR DESIGN AND MANUFACTURING ASSESSMENT. Oak Ridge National Lab 2004
https://info.ornl.gov/sites/publication ... b57348.pdf

This reverse engineering report might be useful. It says 8 poles for both MG1 and MG2 on pg. 10.

Evaluation of 2004 Toyota Prius Hybrid Electric Drive System. Oak Ridge National Lab
https://info.ornl.gov/sites/publication ... b57399.pdf