Robert Boschgmbh

Stefan Lau

Heinrich Schmidt

Ralf Hoffmann

Thomas Jung

A method of route calculation in an vehicle navigation device is described, whereby a route from a starting location or a current location to a destination location is calculated, so that in the case of a deficiency in the vehicle or a deficiency impairing the driver of the vehicle, the route to an alternate destination location which has facilities for eliminating the deficiency is calculated instead of the original destination location. In addition, a method of navigation of a driver of a vehicle from a starting location to at least one destination location is also described, a trip route from the starting location or a current location to the at least one destination location being determined, and driving instructions being generated as a function of a current location so that in the case of a deficiency in the vehicle or a deficiency impairing the driver of the vehicle, the trip route to an alternate destination location which has the facilities for eliminating the deficiency is calculated.

Method of route calculation and method of navigation

A navigational method and a navigational system for determining a route from a starting location to a destination location for a means of locomotion, especially for a motor vehicle, an airplane, or a ship, the route being calculated on the basis of a digital database, which contains predetermined path segments W having correspondingly assigned nodal points N , which connect the specific path segments W to each other, the specific weightings G being assigned to the path segments W and/or to the nodal points N . In this context, the weightings G that are used for the route calculation are varied as a function of the time of day.

Navigation method and a navigation system for determining a route for a means of transport moving from starting point to a destination

A method for operating a navigation system for a vehicle, particularly for a motor vehicle, in which a travel route is calculated in a computing circuit on the basis of a location of the vehicle, a digitally stored map and a destination location, and is made available to the vehicle driver as an acoustical and/or visual message, where traffic information relevant to the travel route may be acquired via a receiver unit and a new travel time t resulting therefrom is calculated for the existing travel route with the aid of a predefined weighting factor G for a disturbance event and the length of a traffic disturbance L , and a travel time t is calculated in the same manner for an alternative route, and in the event that the travel time t of the alternative route is shorter than the travel time t of the travel route, is indicated to the vehicle driver. A correction value K for the weighting factors G is ascertained on the basis of the length of the traffic disturbance L , and a corrected weighting factor G is ascertained as a function of the correction value K and is used for calculating the new travel time t.

Method for operating a navigation system for a vehicle

A navigation method is set forth for calculating a travel route of a vehicle from a starting or an actual vehicle location to an operator-defined destination and for guiding a vehicle operator during operation of the vehicle over and along the calculated travel route, in which at least one possible parking location at the operator-defined destination is designated and the at least one possible parking location is included in the calculating of the travel route as a location to which the vehicle is guided when the operator conducts the vehicle over the travel route. After input of the operator-defined destination into a navigation unit of the vehicle by the operator, the location to which the vehicle is guided over the travel route is determined by the navigation system advantageously automatically taking account of the available parking locations at the input destination. Either the vehicle operator can select between a number of possible parking locations proposed by the navigation system or the navigation system can automatically select the best parking location using a predetermined selection criterion. Thus the operator does not need to know the exact address of the parking locations near the destination, so that the operator is relieved of input of the address of the parking location to which the vehicle is to be guided by street name or other information in order to determine the calculated travel route.

Growing community of inventors

Giesen, Germany

Stefan Lau