A vehicle driving assist system comprises a traveling situation detection device
that detects a vehicle condition and a traveling environment around a subject vehicle;
a risk potential calculation device that calculates a risk potential around the
subject vehicle based upon detection results of the traveling situation detection
device; an accelerator pedal reaction force control device that controls an actuation
reaction force which is generated for an accelerator pedal based upon the risk
potential which has been calculated by the risk potential calculation device; an
actuation amount detection device that detects an actuation amount of the accelerator
pedal; and a vehicle distance control device that controls a distance between the
subject vehicle and a preceding vehicle present in front of the subject vehicle
based upon the accelerator pedal actuation amount which is detected by the actuation
amount detection device.
