Hello,
My name is Dmitry, I am from Kazakhstan.
We are working on a very interesting engineering project and would like to ask the OpenInverter community for some advice.
We have a complete hybrid drivetrain from a Lexus LS600h.
Main components:
hybrid transmission Toyota L110F
original Lexus LS600h inverter
access to the vehicle CAN bus
original LS600h high-voltage battery, which will be used as the power source for the system
Project goal
We would like to use one of the electric motors from this transmission (MG2) not as a traction motor, but as a servo motor that precisely regulates its rotational speed.
The motor speed should be calculated in real time based on data received from the vehicle CAN bus.
Control logic
We plan to calculate the required motor RPM using two parameters:
steering wheel angle (from the steering angle sensor via CAN)
propeller shaft speed (also received via CAN)
The calculation will be approximately:
Motor RPM = steering angle × driveshaft RPM × coefficient
Thus the motor speed will dynamically change depending on:
vehicle speed
steering angle
Purpose of the system
Our goal is to create an actively controlled differential.
The electric motor will act as a regulating element, adjusting the speed difference in a mechanical differential system depending on steering angle and vehicle speed.
Installation conditions
The system will be installed in a standard Lexus LS600h vehicle,
and the original high-voltage battery will be used as the power source.
Our questions
Is it possible to use the LS600h inverter together with OpenInverter for this type of operation, where the motor is used as a precisely controlled servo drive?
Does anyone have experience using Toyota motor-generators (MG1 / MG2) specifically for precise speed control, rather than as traction motors?
Does the OpenInverter board support Toyota resolvers used on these motors?
Are there any known compatibility limitations or issues with the LS600h inverter when used with OpenInverter?
Any advice or links to similar projects would be greatly appreciated.
Thank you!