Navigation system and method for operating a navigation system
First Claim
1. A navigation system for a motor vehicle, comprising:
- at least one storage device, at least one navigation map being stored on each of the at least one storage device;
a reading device, each of the at least one storage device being read out by the reading device;
a changeover device for the reading device, the changeover device exchanging the at least one storage device to be read out by the reading device;
at least one display device for displaying at least one of a navigation map, a pictogram and information regarding an instantaneous position of the motor vehicle to a vehicle occupant;
a control device for the changeover device to control the changeover device so that a point in time for changing over the at least one storage device is identifiable so that during a changeover operation of the at least one storage device, a deviation of the motor vehicle from a route segment currently being traveled is improbable based on current navigation data of the motor vehicle;
wherein there is a changeover operation between data when the vehicle crosses a border of a navigation map,wherein it is certain that a vehicle position on a second digital map has been found and the route is determinable, andwherein from a navigation route of the motor vehicle identified by the navigation system, a turn-free route segment of the navigation route is determined, wherein from a length of the turn-free route segment and a maximum speed permissible for that route segment, a navigation time of the motor vehicle on the route segment is determined, and the ascertained navigation time of the motor vehicle is compared with a time required for a changeover operation of the storage device, and wherein the changeover operation is initiated when the ascertained navigation time is greater than the time required for the changeover operation.
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Accused Products
Abstract
A navigation system for a motor vehicle includes at least one storage device, at least one navigation map being stored on each storage device, which is read out using a reading device. Associated with the reading device is a changeover device for exchanging storage devices that are to be read out by the reading device. A navigation map and information regarding the instantaneous position of the motor vehicle are displayed to a vehicle occupant via a display device. A control device for the changeover device controls the changeover device so that a point in time for changing over the storage device is identifiable so that during the changeover operation of the storage device, a deviation of the motor vehicle from the route segment currently being traveled is improbable based on the current navigation data of the motor vehicle.
17 Citations
6 Claims
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1. A navigation system for a motor vehicle, comprising:
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at least one storage device, at least one navigation map being stored on each of the at least one storage device; a reading device, each of the at least one storage device being read out by the reading device; a changeover device for the reading device, the changeover device exchanging the at least one storage device to be read out by the reading device; at least one display device for displaying at least one of a navigation map, a pictogram and information regarding an instantaneous position of the motor vehicle to a vehicle occupant; a control device for the changeover device to control the changeover device so that a point in time for changing over the at least one storage device is identifiable so that during a changeover operation of the at least one storage device, a deviation of the motor vehicle from a route segment currently being traveled is improbable based on current navigation data of the motor vehicle; wherein there is a changeover operation between data when the vehicle crosses a border of a navigation map, wherein it is certain that a vehicle position on a second digital map has been found and the route is determinable, and wherein from a navigation route of the motor vehicle identified by the navigation system, a turn-free route segment of the navigation route is determined, wherein from a length of the turn-free route segment and a maximum speed permissible for that route segment, a navigation time of the motor vehicle on the route segment is determined, and the ascertained navigation time of the motor vehicle is compared with a time required for a changeover operation of the storage device, and wherein the changeover operation is initiated when the ascertained navigation time is greater than the time required for the changeover operation.
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2. A method for operating a navigation system for a motor vehicle, the method comprising:
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displaying navigation map data, which are stored on a storage device together with navigation data of the motor vehicle, for a vehicle occupant; performing a changeover of a storage device when the motor vehicle, as a result of its motion, moves out of a region of the navigation map that is stored on the storage device currently being used by the navigation system; and selecting a point in time for the changeover of the storage device so that during a changeover operation of the storage device, a deviation of the motor vehicle from a route segment currently being traveled is improbable based on current navigation data of the motor vehicle; wherein there is a changeover operation between data when the vehicle crosses a. border of a navigation map, wherein it is certain that a vehicle position on a second digital map has been found and the route is determinable, and wherein from a navigation route of the motor vehicle identified by the navigation system, a turn-free route segment of the navigation route is determined, wherein from a length of the turn-free route segment and a maximum speed permissible for that route segment, a navigation time of the motor vehicle on the route segment is determined, and the ascertained navigation time of the motor vehicle is compared with a time required for a changeover operation of the storage device, and wherein the changeover operation is initiated when the ascertained navigation time is greater than the time required for the changeover operation. - View Dependent Claims (3, 4, 5, 6)
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Specification