Search found 436 matches
- Fri Aug 16, 2019 4:51 pm
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
Good to know! I normally use Multilock .040 and .070 or Molex MiniFit Jr for unsealed, and Metripack 150, GT150/280, or Superseal for sealed. None of these go to 31 pins, however! Edit: Just a few minutes after posting that reply, I found that the Superseal range goes up to 60 pins. The 34 pin conne...
- Mon Aug 12, 2019 5:18 pm
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
That's great, many thanks. I'll use the existing connector shells from inside the inverter and add my own (longer) wires to an outside connector.
What did you do about the connector on the LS600h inverter? Did you source a mating connector for it or fit your own?
What did you do about the connector on the LS600h inverter? Did you source a mating connector for it or fit your own?
- Sun Aug 11, 2019 10:35 pm
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
HSD-Analyzer for monitoring and simulating the HVC-Bus. Uses an ATxmega128A1U with 4MB SDRAM attached and USB serial port connection for capturing/transmitting/receiving data. Can act as Sniffer for both HTM and MTH, as master (HVC-ECU) and as slave (INVERTER): HSD-Analyzer_1.jpg HSD-Analyzer_2.jpg...
- Sun Aug 11, 2019 9:59 pm
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
Rather than spend time drawing these up, here are my handwritten notes. Converter PCB removed. This is soldered on, it looks like a connector to the IGBT module but it was very very tight and I didn't want to risk damage. https://i.imgur.com/NVHKhF0m.jpg Contents under PCB. One bus bar from the indu...
- Sun Aug 11, 2019 9:25 pm
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
Jealous of your Cosmo! Love those cars :) I guess I should apologise, I didn't see that this thread had gone onto page 2, so I missed out on all the excellent comments and discussion here. I imagine the HV converter is controlled from the same logic board as the inverters, and has a setpoint at 288v...
- Sun Aug 11, 2019 12:18 pm
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
It's been a while since I posted an update on this. I've been playing with a few things at the same time. Looking at the AC compressor communication, disassembling the HV converter, and designing a PCB to talk to the inverter. Here is the board I've come up with. It's based on an Arduino Due as ment...
- Tue Jul 30, 2019 1:23 am
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
Hi @all, that's great that someone else is working on the GS450h/LS600h system. With Bigmouse his help we got the transmission / inverter running with our own control module. It's not SPI, it's a synchronous serial communication. You have to use a micro-controller with USART for that. So the Teensy...
- Sun Jul 28, 2019 4:31 pm
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
I've spent a few hours on this, thanks to the help from the guys on the PJRC (Teensy) forum. I'm using a workaround to receive this data, basically creating a 500KHz PWM signal and then capturing whatever stream comes out of the inverter. The issue is that the UART in the Teensy doesn't know about t...
- Sun Jul 28, 2019 12:03 pm
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
Instead of weird SPI or anything like that, isn't that just synchronous serial data? Configure a USART for it and you'll get a data stream. If not anything else, try to get a data capture of a full drive cycle. I'm not familiar with communication protocols. I've had a look at USART, but have no ide...
- Sat Jul 27, 2019 6:52 pm
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Re: Communicating with the Lexus GS450h Inverter/Converter
Hi Damian, good to hear from you. If I can't get any luck with the method I'm using, I will likely end up using a custom board as well. For now, it appears that the control of this unit is rather simple - and it's just my lack of knowledge/experience which is holding me back! I'll be pulling more da...
- Sat Jul 27, 2019 11:20 am
- Forum: Toyota/Lexus
- Topic: Communicating with the Lexus GS450h Inverter/Converter
- Replies: 154
- Views: 33876
Communicating with the Lexus GS450h Inverter/Converter
Update: The work on this project is considered to be complete. Damien has created a functional controller based on the information and work done in this thread. Please see here for information on the controller, and how to purchase or build you own. Feel free to use this thread for technical discus...