Battery Charge State Estimation for User Arrival at Charging Stations
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Solution Overview
Problem
Existing charging systems for electric motorcycles do not provide users with accurate and convenient information about the charge state of storage batteries, leading to potential discrepancies between expected and actual charge levels when the battery is received, affecting user satisfaction and convenience.
Innovation Solution
An information processing apparatus that acquires arrangement and user position information, along with charge state data, to estimate the battery's charge state at the time of arrival, considering charging speed and user movement speed, allowing users to select suitable batteries based on both current and estimated charge levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If charging systems only provide current charge state information without considering user arrival time, then the system is simple, but user satisfaction deteriorates due to discrepancies between expected and actual charge levels
Solution Approach 1:
The system performs preliminary actions by calculating the estimated charge state in advance of when the user arrives at the charging station. The management server computes what the charge state will be at the user's arrival time based on current charge state, charging speed, and estimated arrival time, providing this information to the user terminal before the user actually arrives. This allows users to make informed decisions about battery selection without requiring complex real-time tracking systems.
2Ease of operation
If the system provides detailed charge state information at user arrival time, then user convenience improves, but information processing requirements increase
Solution Approach 1:
The system implements feedback by continuously monitoring the actual charge state of batteries and comparing it with the estimated charge state that was previously provided to users. The management server acquires updated charge state information from charging devices and can notify users if the actual charge state differs from the estimated charge state by a predetermined threshold or more. This feedback mechanism ensures information completeness while maintaining user convenience through automated updates rather than requiring users to manually check multiple data points.
3Measurement precision
If the system calculates charge state at user arrival time, then information accuracy improves, but computational requirements increase
Solution Approach 1:
The system applies parameter changes by using a simplified linear relationship to calculate estimated charge state: adding the product of charging speed and time until user arrival to the current charge state. This mathematical approach provides sufficiently accurate estimates for user decision-making without requiring complex computational models. The management server performs these calculations using standard processing capabilities, avoiding the need for high-performance computing resources while still delivering accurate enough information for users to select appropriate batteries.
Data Source
AI summary
Provided are an arrangement information acquisition unit that acquires arrangement information indicating a position where a charging device for charging one or more storage batteries is arranged, a user position acquisition unit that acquires user position information indicating a position of the user, a charge state acquisition unit that acquires information indicating a charge state of at least one of the one or more storage batteries at specific time, and a state information generation unit that generates information to which (i) a charge state at the specific time and (ii) a charge state at an estimated time of arrival of the user at the charging device are associated for at least one of the one or more storage batteries, in accordance with (i) the arrangement information acquired by the arrangement information acquisition unit and (ii) the user position information acquired by the user position acquisition unit.