Navigation device for a vehicle
AssigneeDenso Corporation
InventorMakoto Nakashima
Life of this patent
Estimating the term…
Abstract
A navigation device for a vehicle comprises a current position detection unit for detecting a current position of the vehicle and a control unit. The control unit executes, when the detected current position approaches a point of guidance along a route, route guidance indicating a path to be taken at the point of guidance in order to go through the point of guidance along the route. The control unit also estimates a degree of traveling stability of a vehicle in traveling on a road and controls a timing to execute the route guidance so that the timing becomes earlier when the estimated degree of the traveling stability is smaller.
Claims10
A navigation device for a vehicle, comprising:
- a current position detection unit for detecting a current position of the vehicle;
- and
- a control unit for:
- executing, when the detected current position approaches a point of guidance along a route, route guidance indicating a path to be taken at the point of guidance in order to go through the point of guidance along the route;
- estimating a degree of traveling stability of a vehicle in traveling on a road;
- and
- controlling a timing to execute the route guidance so that the timing becomes earlier as the estimated degree of the traveling stability becomes smaller.
A navigation device for a vehicle, comprising:
- a current position detection unit for detecting a current position of the vehicle;
- a storage unit for storing road map data;
- and
- a control unit for:
- executing, when the detected current position approaches a point of guidance along a route, route guidance indicating a path to be taken at the point of guidance in order to go through the point of guidance along the route;
- making, based on the road map data and the detected current position, a determination whether the road on which the vehicle is traveling decreases the degree of traveling stability of the vehicle;
- and
- controlling the timing to execute the route guidance so that the timing becomes earlier when the determination is affirmative than when the determination is negative.
A computer program product for route guidance, comprising:
- at least one computer-readable medium;
- and
- a computer program mechanism embedded in the medium for causing a computer to:
- execute, when a current position approaches a point of guidance along a route, route guidance indicating a path to be taken at the point of guidance in order to go through the point of guidance along the route;
- estimate a degree of traveling stability of a vehicle in traveling on a road;
- and
- control a timing to execute the route guidance so that the timing becomes earlier when the estimated degree of the traveling stability is smaller.
A computer program product for route guidance, comprising:
- at least one computer-readable medium;
- and
- a computer program mechanism embedded in the medium for causing a computer to:
- execute, when a current position approaches a point of guidance along a route, route guidance indicating a path to be taken at the point of guidance in order to go through the point of guidance along the route;
- make, based on the road map data and the detected current position, a determination whether the road on which the vehicle is traveling decreases the degree of traveling stability of the vehicle;
- and
- control the timing to execute the route guidance so that the timing becomes earlier when the determination is affirmative than when the determination is negative.
Dependencies are inferred from the claim text.