EV Reachable Range Calculation via Destination-Centric Path Segmentation
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Solution Overview
Problem
Current technologies for providing electric-moving-body information, such as electric vehicle systems, are limited in offering useful insights to users about actions they can take after reaching a destination, particularly in determining reachable points and charging needs, due to underestimation of travelable ranges and lack of precise energy consumption calculations.
Innovation Solution
A device and method that utilize a program to calculate and visually display reachable points for an electric vehicle after it reaches a destination, using a traffic flow simulator and road network model to determine the electric vehicle's state of charge and energy consumption, allowing users to understand their range and charging requirements more accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a technique displays a travelable distance obtained by adding the distance capable of being traveled by the electric vehicle with the SOC after reaching the destination and the distance of the path from a current place to the destination, then it is possible to easily cause a driver to recognize a suitable charging time, but it underestimates the actual reachable range and provides insufficient information for determining actions after reaching the destination
Solution Approach 1:
The patent segments the reachable range calculation into multiple independent paths radiating from the destination. Instead of calculating a single aggregate distance, the system divides the area around the destination into multiple directional paths and calculates the reachable distance along each path separately, then displays them as discrete segments on the map.
Solution Approach 2:
The patent transitions from displaying a single scalar distance value to displaying multiple spatial points in two-dimensional space around the destination. By plotting reachable points along different paths radiating from the destination on a map, the system adds spatial dimensionality to the information, enabling users to visualize the actual geographic area that can be reached rather than just a total distance number.
2Loss of information
If the system calculates reachable points along multiple paths from the destination, then it provides more accurate and useful information for determining actions after reaching the destination, but it increases the complexity of the calculation process
Solution Approach 1:
The patent performs preliminary calculations of reachable points along multiple paths from the destination before the user actually reaches the destination. By pre-calculating these paths and storing them, the system reduces the computational burden at the time of display and provides ready-to-use information that helps users plan their post-destination actions in advance.
Solution Approach 2:
The patent introduces a map display as an intermediary visual representation between the complex calculation data and the user. Instead of presenting raw calculation results or numerical data, the system uses the map to visually intermediate the information, showing reachable areas as geographic regions around the destination, which simplifies user interpretation without reducing information completeness.
Data Source
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AI summary
A device for providing electric-moving-body information is provided with a calculation unit for calculating, upon receiving a departure point and state of charge (SOC) of an electric vehicle, a plurality of reachable points capable of being reached if an electric vehicle departs from a destination after reaching the destination from the departure point and a display data generation unit for generating display data for displaying a reachable range display screen that makes it possible to visually recognize the plurality of reachable points. Information that is more useful for determining actions that can be taken after arriving at a destination is provided to an electric-moving-body user.