A vehicle mode controller, a driving mode collecting means, and a
plurality of subsystem controllers including an engine management system,
a transmission controller, a steering controller, a brakes controller and
a suspension controller, provide an improved system and method of
operating a vehicle control system in a host vehicle in a manner suitable
for a respective driving surface in a plurality of different off-road
surfaces and terrains such as might be encountered when driving off-road.
An improved method is provided for controlling a vehicle control system
by avoiding unplanned combinations of subsystem configuration modes and
minimizing the transition time when changing between subsystem
configuration modes.