Patent ID: 8068982
Filing Date: 2011-11-29
Classification: G01C

Abstract:
1. An on-vehicle navigation system comprising: a characteristic object detecting section configured for detecting a special lane characteristic object in the case where a vehicle drives in the special lane of a plural-lane road having a normal lane and said special lane where advancing from said normal lane in a predetermined advancing authorized section and exiting to said normal lane in a predetermined exiting authorized section are authorized; a route searching section configured for searching a recommended route to a destination; a route guidance section configured for performing route guidance of said vehicle to said destination including the guidance of said exiting authorized section along said recommended route searched by the route searching section; a special lane driving judging section configured for performing special lane driving judgment that said vehicle is driving in said special lane in the case where said characteristic object has been detected by said characteristic object detecting section; a first route deviation judging section configured for performing a first route deviation judgment that said vehicle deviates from said special lane on said recommended route including said special lane in the case where said special lane driving judgment by said special lane driving judging section is not performed in a predetermined driving section in said plural-lane road even though said special lane is included in said recommended route searched by said route searching section; a second route deviation judging section configured for performing a second route deviation judgment that said vehicle deviates from said recommended route not including said special lane in the case where said special lane driving judgment by said special lane driving judging section is performed in said plural-lane road even though said special lane is not included in said recommended route searched by said route searching section; a first control section configured for controlling the route guidance action of said route guidance section to prevent the guidance of said exiting authorized section from being performed in the case where said first route deviation judgment by said first route deviation judging section has been performed; and a second control section configured for controlling the route guidance action of said route guidance section so as to perform the guidance of said exiting authorized section for returning to the recommended route in the case where said second route deviation judgment by said second route deviation judging section has been performed.