CAR NAVIGATION SYSTEM AND RECORDING MEDIUM,申请号JP19970214780-传众专利搜索

CAR NAVIGATION SYSTEM AND RECORDING MEDIUM

申请公布号：JPH1151681(A)

申请号：JP19970214780

申请日期：1997.08.08

申请公布日期：1999.02.26

申请人：

AISIN AW CO LTD

发明人：WATANABE KAZUYUKI

分类号：G09B29/10;G01C21/00;G01C21/36;G06F12/06;G06F19/00;G08G1/0969

主分类号：G09B29/10

摘要：PROBLEM TO BE SOLVED: To start route guidance smoothly through researching after deviation from a route by determining a guide starting point from the distance required for starting guidance and the road information in the traveling direction depending on the vehicle speed when a vehicle has deviated from a route and then searching a route. SOLUTION: When display output and voice output processing of route guidance is being executed before arriving at a goal, current position of vehicle is acquired through automatic researching (S21), and a decision is made whether a vehicle has deviated from a route (S22) by matching the current position with a route to be guided. When a decision is made whether a vehicle has deviated from a route, route guidance is interrupted (S23) and the distance D along the road (the distance required before starting route guidance according to a researched route) is calculated based on the current traveling speed. A guidance starting point determining means sets a guidance starting point (S26) at point S separated forward from current position by the distance D along the road and then a route researching means researches the route (S27).