How to control a 3 wheel bot in gazebo simulation? It's wheels are arranged at an angle of 120 degrees.
This bot cannot be controlled by normal differential drive as it has 3 wheels instead of 4 or 2. This type of transmission is also called kiwi transmission. I am unable to define it's transmission.
I believe the actual name is a Killough platform type drivetrain/kinematic setup.
Can you please tell how to write gazebo code for its simulation?
No. I just happened to know what these types of configurations are called.
If you're really only interested in Gazebo, I would recommend posting on
answers.gazebosim.org, not here.