A travel assistance device mounted in a vehicle includes an in-vehicle communication unit to which position information regarding the vehicle, intersection information, and traffic signal information are input. A vehicle speed deriving unit derives a recommended speed of the vehicle and is connected to the in-vehicle communication unit. The vehicle speed deriving unit derives the recommended speed of the vehicle based on intersection information and traffic signal information regarding a first intersection that are input from the in-vehicle communication unit, and on the position information regarding the vehicle, updates the recommended speed, if intersection information and traffic signal information regarding a second intersection are input before the vehicle passes through the first intersection, based on the intersection information and the traffic signal information regarding the second intersection, and on the position information regarding the vehicle, and outputs the derived or updated recommended speed via the in-vehicle communication unit.
TRAVEL ASSISTANCE DEVICE, TRAVEL ASSISTANCE METHOD, AND COMPUTER PROGRAM
2019-11-28
Patent
Electronic Resource
English
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