Navigation system for vehicles

A navigation system for a vehicle, comprising:

• present-position sensing means for sensing a present position of the vehicle;
• information storage means for storing map information;
• destination setting means for setting a destination;
• bypass setting means for setting a bypass as an unwanted road;
• route searching means for searching for a route from the present position to the destination based upon the map information stored in the information storage means;
• and
• guidance means for guiding the vehicle along a route calculated by the route searching means,
• wherein the route searching means includes cost changing means for changing the searching cost to a higher cost by setting the bypass as the unwanted road, so that a route to the destination having a lowest search cost is searched based on the cost changed by the cost changing means.

A navigation system for a vehicle which gives guidance based on a route searched for a set destination, comprising:

• destination setting means for setting the destination;
• location setting means for setting a location desired to be traversed;
• and
• route searching means for searching for a route which gives guidance based on the set destination and/or the set location desired to be traversed, the location setting means for setting the location desired to be traversed comprising:
• location input means for entering the location desired to be traversed;
• road retrieval means for retrieving roads lying within a prescribed range with respect to the location desired to be traversed, based on the location desired to be traversed, which has been entered by the location input means;
• condition setting means for setting a condition for the location desired to be traversed so that the location desired to be traversed entered by the location setting means for setting the location desired to be traversed is set with respect to roads retrieved by the road retrieval means;
• and
• road selecting means for offering a selection from the roads retrieved on the basis of the condition for the location desired to be traversed by the condition setting means, so that a point on a road selected by the road selecting means can be set as the location desired to be traversed.

A navigation system for a vehicle for performing route guidance with a map and a present-position mark displayed on a screen, comprising:

• present-position sensing means for sensing a present position of the vehicle;
• information storage means having map information enabling the map to be displayed on the screen for route guidance and other route information loaded into memory;
• display means for displaying a map for route guidance and the present-position mark;
• and
• route guidance means for accepting the present position and direction of travel of the vehicle from a detection signal from the present-position sensing means, so that the map information can be read out of the information storage means to display the map and the present-position mark of the vehicle on the display means, and for switching over a display of said present-position mark from a continuous mode to a blinking mode or from the blinking mode to the continuous mode depending on a change in a state where the vehicle is displayed on the map.