Navigation method and navigation device
First Claim
1. A navigation method for a vehicle, the method comprising the acts of:
- detecting at least one constant travel characteristic (CONST_KW) that is representative of a vehicle-specific energy requirement with respect to a predetermined trip length at quasi-constant speed on a quasi-level stretch;
detecting at least one dynamic characteristic (DYN_KW) that is representative of a vehicle-specific energy requirement with respect to a predetermined trip length at a predetermined quasi-dynamic speed on a quasi-level stretch;
respectively adapting the constant travel characteristic (CONST_KW) on the basis of at least one vehicle-specifically determined energy consumption characteristic (EV_KW) for a traveled route segment that was recognized as being quasi-level and in which a quasi-constant speed was detected;
in order to determine an expected energy consumption for a predetermined driving route (RT) with several route segments (STA);
(i) determining for each route segment (STA) whether one or more dynamic events are associated with the route segment,(ii) determining an estimated route segment energy requirement characteristic (ST_EB_KW) for each route segment (STA) on the basis of a respective constant travel characteristic (CONST_KW) that is associated with the respective route segment (STA), and if one or more dynamic events are associated with the respective route segment (STA), for each dynamic event on the basis of a respective dynamic characteristic (DYN_KW), and(iii) determining an estimated route energy requirement characteristic (RT_EB_KW) for the predetermined driving route (RT) on the basis of the respective route segment energy requirement characteristics (ST_EB_KW).
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Accused Products
Abstract
In a navigation method, at least one constant travel characteristic (CONST_KW) is determined that is representative of a vehicle-specific energy requirement with respect to a predetermined trip length at quasi-constant speed and on a quasi-level stretch. At least one dynamic characteristic (DYN_KW) is determined that is representative of a vehicle-specific energy requirement with respect to a predetermined trip length at quasi-dynamic speed and on a quasi-level stretch. The constant travel characteristic (CONST_KW) is respectively adapted on the basis of at least one vehicle-specifically determined energy consumption characteristic (EV_KW) for a traveled route segment that has been recognized as quasi-level and in which a quasi-constant speed was detected. To determine an expected energy requirement for a predetermined driving route (RT) with several route segments (STA), the individual route segments (STA) are each made available either as a constant travel segment (CONST_STA) or as a dynamic travel segment (DYN_STA). For each route segment (STA), the estimated route segment energy requirement characteristic (ST_EB_KW) is determined on the basis of a respective constant travel characteristic (CONST_KW) in the event of a route segment (STA) made available as a constant travel segment (CONST_STA) and on the basis of a respective dynamic characteristic (DYN_KW) in the event of a route segment made available as a dynamic travel segment. An estimated route energy requirement characteristic (RT_EB_KW) for the predetermined driving route (RT) is determined on the basis of the respective route segment energy requirement characteristics (ST_EB_KW).
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Citations
35 Claims
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1. A navigation method for a vehicle, the method comprising the acts of:
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detecting at least one constant travel characteristic (CONST_KW) that is representative of a vehicle-specific energy requirement with respect to a predetermined trip length at quasi-constant speed on a quasi-level stretch; detecting at least one dynamic characteristic (DYN_KW) that is representative of a vehicle-specific energy requirement with respect to a predetermined trip length at a predetermined quasi-dynamic speed on a quasi-level stretch; respectively adapting the constant travel characteristic (CONST_KW) on the basis of at least one vehicle-specifically determined energy consumption characteristic (EV_KW) for a traveled route segment that was recognized as being quasi-level and in which a quasi-constant speed was detected; in order to determine an expected energy consumption for a predetermined driving route (RT) with several route segments (STA); (i) determining for each route segment (STA) whether one or more dynamic events are associated with the route segment, (ii) determining an estimated route segment energy requirement characteristic (ST_EB_KW) for each route segment (STA) on the basis of a respective constant travel characteristic (CONST_KW) that is associated with the respective route segment (STA), and if one or more dynamic events are associated with the respective route segment (STA), for each dynamic event on the basis of a respective dynamic characteristic (DYN_KW), and (iii) determining an estimated route energy requirement characteristic (RT_EB_KW) for the predetermined driving route (RT) on the basis of the respective route segment energy requirement characteristics (ST_EB_KW). - View Dependent Claims (2, 7, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 27, 28, 29, 30, 31, 33, 35)
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3. A navigation method for a vehicle, the method comprising the acts of:
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detecting at least one constant travel characteristic (CONST_KW) that is representative of a vehicle-specific energy requirement with respect to a predetermined trip length at quasi-constant speed on a quasi-level stretch; detecting at least one dynamic characteristic (DYN_KW) that is representative of a vehicle-specific energy requirement with respect to a predetermined trip length at a predetermined quasi-dynamic speed on a quasi-level stretch; respectively adapting the constant travel characteristic (CONST_KW) on the basis of at least one vehicle-specifically determined energy consumption characteristic (EV_KW) for a traveled route segment that was recognized as being quasi-level and in which a quasi-constant speed was detected; in order to determine a driving route (RT) between a predetermined starting point and a predetermined destination point taking an expected energy requirement into account; (i) determining for each candidate route segment (KSTA) whether one or more dynamic events are associated with the candidate route segment, (ii) determining an estimated route segment energy requirement characteristic for each candidate route segment on the basis of a respective constant travel characteristic (CONST_KW) that is associated with the respective candidate route segment and, if one or more dynamic events are associated with the respective candidate route segment, for each dynamic event on the basis of a respective dynamic characteristic (DYN_KW), and (iii) determining the driving route (RT) by selecting the candidate route segments on the basis of the estimated candidate segment energy requirement characteristics. - View Dependent Claims (4, 5, 6, 9, 11, 13, 15, 17, 19, 21, 23, 25, 32, 34)
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Specification