I would like to build a small robot and was wondering if a particular configuration of steering would even be possible and stable.
What I would like is to have the two rigid axles mounted on a pivoting point like the image. The pivoting points would be free to move on their axes without restrain. Steering should be achieved via the different speed of the 4 wheels (one motor on each wheel).
Problem is, if I start accelerating the outer wheels, to me it looks like it would start going in a diagonal direction, with both axles keeping parallel to each other rather than achieving something like the picture, even though the outer wheels on a corner should go faster than the inner wheels. Is this configuration even possible?