Patent attributes
An electronic control unit of a drive assist apparatus acquires electric power source identification information for identifying a source of an electric power currently charged in a battery and electric power amount information representing an electric power amount corresponding to the source from an electric power acquisition unit, thereby recognizing a battery remaining amount SOCrg representing a green electric power, a battery remaining amount SOCj representing a privately generated green electric power, and a battery remaining amount SOCrs representing a non-green electric power. The unit presents travelable ranges each formed by connecting a group of maximum reachable points to which a PHV can reach by using each of a battery total remaining amount SOCr and the battery remaining amounts SOCrg, SOCj, and SOCrs to a user (driver) by using an information presentation unit.
