Aisin Aw Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Shogo Sugimoto

Masatoshi Takahara

Kiyoshi Tsurumi

Yuya Higuchi

Motohiro Nakamura

Tomoki Kodan

Kuniaki Tanaka

Atsushi Mochizuki

Naoto Miura

Yasuki Hosoi

According to navigation systems and methods, when a detected current position has deviated from a guidance route, a navigation device transmits a reroute calculation condition to an information distribution center including the current position and the destination. Based on the reroute calculation condition, the information distribution center determines whether a distance from the current position to a closest adjacent link is equal to or shorter than a predetermined distance. When the distance from the current position to the closest adjacent link is longer than the predetermined distance, the information distribution center distributes to the navigation device reroute prohibition information including information regarding the adjacent link and a maximum waiting time. The maximum waiting time is a time that must elapse before the navigation device can again transmit the reroute calculation condition.

Navigation system and navigation method

Various sensors, such as a GPS and a vehicle speed sensor, are used to detect a current position and direction of a vehicle. A normal running direction, which is a running direction specified for a road on which the vehicle runs, is acquired. In a state where a vehicle speed pulse is acquired at the predetermined intervals, it is detected whether the vehicle is placed in a wrong-way driving situation on the basis of the detected current direction of the vehicle and the normal running direction; whereas, in a state where a vehicle speed pulse is not acquired, it is not detected whether the vehicle is placed in the wrong-way driving situation on the basis of the detected current direction of the vehicle.

Driving support system, driving support method and computer program

A driving support device includes: a position detector; a traveling direction detector; a map data memory; a map matching element for matching a current position of a vehicle on a road of map data; a traveling segment estimation element for estimating a current segment of the vehicle in the parking place road when a matched road is the parking place road; a main road search element for determining whether a segment of a main road of an express way is disposed in a predetermined search distance from an estimated current segment; and a reverse run determination element for determining whether the vehicle travels reversely when the main road search element determines that the segment of the main road is disposed in the predetermined search distance from the estimated current segment.

Driving support device for a vehicle with reverse run determination

Growing community of inventors

Okazaki, Japan

Shogo Sugimoto