Route Search Apparatus
First Claim
1. A route search apparatus comprising:
- a calculation unit calculating a carbon dioxide discharge amount being discharged from an internal combustion engine of a vehicle per section in a route from a start place to a destination;
a carbon-conscious routing unit searching a carbon-minimum route that minimizes the carbon dioxide discharge amount in the route from the start place to the destination based on a calculation by the calculation unit; and
a memory unit memorizing altitude information that represents an altitude difference between both ends of each section in the route, whereinthe calculation unit identifies a slope coefficient that reflects a slope condition of each section based on the altitude difference of each section stored in the memory unit,the calculation unit variably identifies the carbon dioxide discharge amount for each section by multiplying a distance of each section by the slope coefficient,the calculation unit variably identifies the carbon dioxide discharge amount based on a travel time of the vehicle in each section,the calculation unit variably identifies the carbon dioxide discharge amount based on an index that changes according to a number of stops in each section, andthe calculation unit calculates a total carbon dioxide discharge amount for each section by adding each of identified carbon dioxide discharge amounts.
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Accused Products
Abstract
An apparatus calculates a coefficient b that reflects a road slope condition of each section based on an altitude difference of both ends of each section stored in a memory, and identifies a carbon dioxide discharge amount that changes in proportion to the distance of each section by multiplying a distance D of each section by the coefficient b and another coefficient Ec. Further, the apparatus identifies a discharge amount that changes in proportion to a travel time of each section by multiplying a travel time T of each section and yet another coefficient a, and identifies a discharge amount based on an index that changes in proportion to the number of stops in each section by multiplying an index AEE by the coefficient Ec and still yet another coefficient c for performing a carbon-conscious routing between a start place and a destination.
23 Citations
8 Claims
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1. A route search apparatus comprising:
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a calculation unit calculating a carbon dioxide discharge amount being discharged from an internal combustion engine of a vehicle per section in a route from a start place to a destination; a carbon-conscious routing unit searching a carbon-minimum route that minimizes the carbon dioxide discharge amount in the route from the start place to the destination based on a calculation by the calculation unit; and a memory unit memorizing altitude information that represents an altitude difference between both ends of each section in the route, wherein the calculation unit identifies a slope coefficient that reflects a slope condition of each section based on the altitude difference of each section stored in the memory unit, the calculation unit variably identifies the carbon dioxide discharge amount for each section by multiplying a distance of each section by the slope coefficient, the calculation unit variably identifies the carbon dioxide discharge amount based on a travel time of the vehicle in each section, the calculation unit variably identifies the carbon dioxide discharge amount based on an index that changes according to a number of stops in each section, and the calculation unit calculates a total carbon dioxide discharge amount for each section by adding each of identified carbon dioxide discharge amounts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification