VEHICLE TRAVEL CONTROL APPARATUS

A vehicle travel control apparatus includes a utility function determination unit, which determines a utility function fu representing a relationship between the manipulated variable for vehicle speed control of an own vehicle and an effectiveness degree, a travel inhibition degree function determination unit, which determines a travel inhibition degree function fr representing a relationship between the manipulated variable for vehicle speed control and an estimated travel inhibition degree of the own vehicle, and an appropriateness function determination unit, which determines an appropriateness function fap combining both functions fu and fr. A driving/braking force of the own vehicle is manipulated according to the value of the manipulated variable for vehicle speed control corresponding to a highest appropriateness in the appropriateness function fap.