Travel control system for vehicle

Abstract

A travel control system for a vehicle includes: a plurality of processors mounted on the vehicle; a determination processor mounted on the vehicle; an in-vehicle communication network; and a control device configured to establish wireless communication with the vehicle through a network environment and including a backup processor. The determination processor takes a count of unconformities between a sender identifier and a recipient identifier of the control information transmitted and received by the processors through the in-vehicle communication network. When the count of unconformities becomes larger than a predetermined threshold value, the determination processor determines that an abnormality is present, and transmits an abnormality signal to the control device through the network environment. Upon receiving the abnormality signal, the control device transmits the control information held by the backup processor, to the vehicle through the network environment, and makes a remote control of the vehicle.