Update - ZombieVerter arrived. So things to do include:
1) remove the fossil-burner boat anchor
2) Decide on batteries and purchase them.
3) Wire it up.
It is my understanding I will need a battery voltage >> 200V to run bypassing the boost stage on the inverter. Ideally 650V. This pretty much rules ...

I guess you'll be around stock Lexus voltage so using the inverters boost stage would provide full speed but not a massive amount of power as I understand. However, if you're geared correctly, it will spin at that voltage with a direct connection to the DC bus (eliminating the boost stage) but ...

I really want Tesla 4.3kWh packs, because they are simpler to cool. But I only have budget for 9. Does this even sound feasible? The pack Voltage would be around 225V.

0tik wrote: ↑Wed Sep 13, 2023 11:54 am Can you elaborate why not "just" the zombieverter? It is stated on the inverter's wiki page that gs450h board is outdated.

Oh no, did I order the wrong one?

Project update: Just ordered a "Lexus GS450h VCU V1.0" from EVBMW.

Seems like you could fit 10 Tesla Model S modules in that space. Could give you 40+ kWh. Even more if you want to add some to the trunk or where the gas tank is.

Yes, that is one option, but will likely cost me £7000 to go that route. There is also BMW i3 modules, 6 of them would give me 36kWh ...

Hello.
I thought I would start a build thread for my project. We have two Lexus GS450h in our household, 1 running 2009, and a dead 2006. I bought them both as non-runners from Copart. I managed to get the 2009 running by replacing the HV inverter, then I got carried away and bought another one ...

Coincidentally I've been looking at this today. Here is a picture of what Lexus calls the Hybrid ECU from a 2009 Lexus GS450h. This unit talks to the inverter using 4 CAN-like interfaces.

IMG_7697.JPG

I've buzzed out the CAN connections using the lexus wiring diagrams. From left to right there ...

I just got a (running) GS450h. It is a very, very fast car. The book states 349hp, with the engine providing around 300. It is my understanding that all the engine power goes into MG1 -> 650V then MG2 takes some additional current from the battery to top up to around 250kW. So in theory the GS450h ...

Today I removed the Hybrid ECU from my GS450H. I think it would be possible to create a new ZombiVerter ECU to fit in there. This surely would be the easiest way to make a BEV car...

I'm curious to get an idea of the weight of the engine. I plan to remove my engine from my GS450h and fit in some batteries, so it would be handy to know how many I could fit.

I found an inverter for a Toyota Crown G9200-30070 and put it in my dead GS450h in place of the G9200-30051. It works ! Conclusion then must be the Zombie VCU will work with the G9200-30070 Inverter.

I am about to embark on a GS450H inverter repair. So far I have followed the lexus_tech diagnostics using techstream which revealed fuse14 (IGCT No.2) a 7.5A fuse keep blowing. Is this normal for a blown IGBT or do I perhaps have an issue on the logic board ?
-H

Hello,
I'm new, just joining the fun. I have a VW charger (5QE915682AF) and a 60 pin connector (5Q0 906 379
) ordered from eBay. I have oscilloscopes, and lab PSUs and 26 years embedded software experience. Just need to get me the can thingamybob now.
-Hazel

Oh no,
I just today joined the forum in the hope I could work with you Jack on reverse engineering the VW charger. I also bought a dead GS450H based on all your videos, with a plan to convert it to a PHEV. I have 26 years professional electronics/embedded software/FPGA design behind me, and I love a ...