Driving Control Apparatus for Vehicle

In a driving control apparatus for a vehicle having an ACC function for performing constant speed cruise at a target speed or performing following cruise to a preceding vehicle at a target inter-vehicle time, an LKA function for maintaining cruise in the vehicle's own driving lane by following control to a target path, a CACC function for performing convoy cruise by cooperative adaptive cruise control using the ACC function together with driving information on convoy vehicles obtained by a vehicle-to-vehicle communication part, and a tracking control function for performing steering control. The driving control apparatus has a function for: notifying a driver of CACC function cancelation and of tracking control start, in case where failure has occurred in the vehicle-to-vehicle communication or the lane cannot be recognized during the convoy cruise; shifting to following cruise by the tracking control function; and altering override threshold values for stopping the tracking control function to a value greater than during normal operation.