Drive assistance device

Abstract

Provided is a drive assistance device for a self-driving car with which drive assistance is less liable to be deactivated, even if an abnormality of a monitoring device for monitoring a state of a driver occurs. A device checking ECU checks whether a plurality of monitoring devices for monitoring the state of the driver are normal or abnormal. On the basis of the check result, an assistance degree determination unit (function availability determination unit) determines a use degree (availability) of a plurality of drive assistance functions (ACC function, LKAS function, and ALC function) including an ACC function. Drive assistance effected by a vehicle with respect to the driver is therefore less liable to be deactivated.

Dependencies are inferred from the claim text.