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Title:
NAVIGATION SYSTEM FOR VEHICLE
Document Type and Number:
Japanese Patent JP3891231
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide guide information appropriately depending on the traveling lane at the time of traveling on a road having a plurality of lanes by outputting a lane change guide depending on next guide information on a previously calculated course and the currently traveling lane.
SOLUTION: After acquiring the current position of a vehicle (S11), guide information of an intersection to be guided next is acquired from a course data (S12) and the current position of a vehicle on a road data is calculated along with the distance to the guide intersection. Subsequently, traffic information is acquired from a road traffic information system VICS (S13). When a next guide intersection is present in the traffic information (S14), the traveling lane of a host vehicle is acquired from the lane information of the VICS to the next guide intersection (S15). Subsequently, a decision is made whether a predetermined distance to the guide intersection is present (S16) and when a predetermined distance is present, a decision is made whether the traveling lane corresponds to the advancing direction at the intersection (S17). When the traveling lane is a left turn lane and the advancing direction corresponds to left turn, an advancing direction guide at the guide intersection is outputted (S19).


Inventors:
Mitsuhiro Nimura
Shinichi Kato
Katsuhiko Rokka
Application Number:
JP19106297A
Publication Date:
March 14, 2007
Filing Date:
July 16, 1997
Export Citation:
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Assignee:
Aisin AW Co., Ltd.
International Classes:
G01C21/00; G09B29/10; G08G1/09; G08G1/0969; (IPC1-7): G01C21/00; G08G1/09; G08G1/0969; G09B29/10
Domestic Patent References:
JP7129889A
JP1217210A
JP8086662A
JP8152330A
JP9053951A
JP9119851A
Attorney, Agent or Firm:
Ryukichi Abe
Hirukawa Masanobu
Norihiko Uchida
Kenji Aoki
Hideo Sugai
Hiroshi Nagisawa
Akira Yonezawa