I've been studying tilting three wheelers at
tilting : Tilting Vehicles for years now, to improve on my first trike. There are various ways to control tilting, with the sensors and hydraulics on the late Vandebrink Carver working quite well. Philip James has a system that connects the steering wheel to the tilt mechanism, and lets the wheels caster freely. As alarming as that sounds, it has the ability to slide through a corner with a transition from high traction to low and back without upset. So far, it hasn't been tested for crosswind stability, though. In general, automatic tilt controls are not what you want in the esses. Most builders just let the chassis tilt freely, as if on two wheels, except at low speed - like putting a caster tip on the stand instead of a spring to hold it up.