Edit: Seems it’s not available in Rover, but available in Copter. Can this be a feature request?
I’ve been running the new rover in the wild, and have the max speed dialed down for testing. Across different terrain, I can see that different speeds are appropriate. For instance, on smooth surfaces I can run much faster then I can on rough terrain where “bump steer” is a problem the faster I go.
I have 2 free rotary pots on my x9d. Can these be configured to adjust the maximum speed on the fly, while in auto mode?
No. As far as I know Rover does not have the WP Speed tune option that Copter has. I use that same function on a X9D pot for multirotors but I think your only option is a pre-planned DO_CHANGE_SPEED command in the mission.