Battery Exchange Guidance Using SOC-Based Station Selection
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Solution Overview
Problem
Electric vehicles may face difficulties in reaching their destinations due to insufficient state of charge (SOC) after battery exchange at a station, leading to potential power shortages.
Innovation Solution
A method and system that guide electric vehicles to battery exchange stations with sufficient SOC by calculating distances and searching for stations with batteries charged to a predetermined threshold or more, ensuring the vehicle can reach the destination and maintain adequate charge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the electrically powered vehicle exchanges batteries at the nearest battery exchange station, then the exchange time is reduced, but the vehicle may still face power shortage before reaching the destination
Solution Approach 1:
The system performs preliminary searching and selection of battery exchange stations before the vehicle arrives. It calculates the SOC required to reach the destination, identifies stations that can provide batteries with sufficient charge, and notifies the user in advance. This preliminary action ensures that when the vehicle does exchange batteries, it receives a battery that is guaranteed to enable reaching the destination, thus resolving the contradiction between quick exchange and reliable destination arrival.
2Device complexity
If the system searches for battery exchange stations without considering the SOC of available batteries, then the search process is simplified, but the vehicle may receive a battery with insufficient charge
Solution Approach 1:
The system implements feedback by continuously monitoring the SOC of batteries available at exchange stations and using this information to guide vehicle routing. The server receives SOC information from stations, calculates which stations can satisfy the destination-reaching requirement, and provides targeted guidance to users. This feedback mechanism ensures reliable battery charge sufficiency while maintaining search process efficiency through automated information processing.
3Adaptability or versatility
If the system notifies users of all battery exchange stations, then users have more options, but users cannot distinguish between stations that can and cannot provide sufficient charge
Solution Approach 1:
The system applies local quality by providing differentiated information to users based on their specific destination and current battery status. Instead of uniformly notifying all users of all stations, it calculates the SOC required for each user to reach their destination and identifies which stations can provide batteries meeting that specific requirement. This targeted information provision gives users actionable insights about which stations will actually enable them to reach their destination, resolving the information asymmetry problem.
Data Source
AI summary
A battery exchange guiding method includes: searching for a battery station that an electrically powered vehicle is able to reach (first searching); and searching for the battery station in which a battery with a larger SOC than a predetermined value (an SOC required to reach a destination from the battery station+a user's desired value in regard to a remaining amount of the SOC at a timing of arrival at the destination) is stored (second searching). The guiding method includes notifying the user of the electrically powered vehicle of information on the battery station extracted through the above two searches.