This paper deals with motion planning and control for mobile robots. The va
rious components of an integrated architecture for the mobile robot Hilare
pulling a trailer are presented. The nonholonomic path planner is based on
an original steering method accounting for the small-time controllability o
f the system, Then the path is transformed into a trajectory by including t
he dynamical constraints of the system (bounded velocity and bounded accele
ration). Finally motion control is addressed: thanks to a geometric transfo
rmation introducing a virtual robot, we show how to reduce the problem to a
classical approach of trajectory tracking for a mobile robot moving only f
orward. Experimental results include two types of robot-trailer connection
systems.