Opensource controller for the Lexus GS450H Hybrid inverter and gearbox.
Controls the inverter using it's own OEM logic board. No modification required.
Connects to the gearbox and controls oil pump, gear shifting and temperature monitoring.
Only requires throttle and brake inputs from the vehicle but also has CAN capabilty for communicating with modern vehicles.
Big thanks to Tom Darby for figuring out the control protocol.
Thread on the openinverter.org forum :
https://openinverter.org/forum/viewtopic.php?f=14&t=205
PCB files in Designspark PCB 8.1 format.
Copyright 2019 D.Maguire and T.Darby
29/09/19 : Initial commit.PCB design in progress.
27/10/19 : First successful test of the prototype running on the bench : https://youtu.be/F5XM6blwMlw
24/11/19 : Uploaded V3 software with reverse function. When IN1 is low motors run forward. when IN1 is pulled to +12v MG2 reverses.
21/01/2020 : Due to popular demand and a return to a no risk no reward culture, I have released the V2 design including the JLCPCB files so you can all take an arrow in back for me if I screwed up the design. In case anyone for some weird reason would like to support me why not buy a board from the EVBMW webshop : https://www.evbmw.com/index.php/evbmw-webshop
17/02/20 : WiFi interface files uploaded. Designed to run on the Olimex ESP8266 WiFi Module :
https://www.olimex.com/Products/IoT/ESP8266/MOD-WIFI-ESP8266/open-source-hardware
02/06/20 : It works : https://www.youtube.com/watch?v=9eRWR5xXItc
18/01/21 : A more user friendly firmware (gs450h_v3_user.ino) with a basic serial menu interface has been tested and uploaded to aid those not familiar with programming.
A full description of the menu system may be found on the openinverter wiki page :
https://openinverter.org/wiki/Lexus_GS450h_Inverter