Currently the ackermann module does not support active braking.
Describe your preferred solution
Add an actuator configuration option for braking.
Add braking functionality to the ackermann gazebo model (or migrate the one from gz classic to garden).
Implement braking functionality into auto modes.
The Ackerman UGV (Rover) in gazebo classic have brakes in the sdf format but they are not mapped to any actuator. So one possible solution is to migrate it to garden and then map it.
Describe problem solved by the proposed feature
Currently the ackermann module does not support active braking.
Describe your preferred solution
Add an actuator configuration option for braking. Add braking functionality to the ackermann gazebo model (or migrate the one from gz classic to garden). Implement braking functionality into auto modes.