EV Battery Station Charging Control for Predictive Battery Exchange
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Solution Overview
Problem
In the sharing service of electric vehicles, it is challenging to efficiently manage battery charging due to the unpredictability of user access and movement patterns, making it difficult to control charging speed and battery exchange in battery stations.
Innovation Solution
A battery management system that includes an electric vehicle, a battery station, and a management server connected through a communication network, which evaluates the exchangeability of batteries based on the vehicle's position, remaining battery amount, and user movement information to determine optimal charging speeds and promote battery exchange at convenient locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the electric vehicle arrives at the nearest battery station, then the user can exchange the battery, but the charging time of several ten minutes to several hours is required to completely charge the battery, so it is necessary to wait for the charging to be completed
Solution Approach 1:
The battery is charged in advance in the battery station before the user needs it. The management server predicts user arrival times and initiates charging operations beforehand, so that when the user arrives at the battery station, the battery is already charged and ready for immediate exchange, eliminating waiting time.
Solution Approach 2:
The management server continuously monitors battery charge levels, user positions, and arrival time predictions to dynamically adjust charging operations. This feedback mechanism ensures that charging is optimized based on real-time conditions, preventing both premature charging completion and unnecessary waiting.
2Loss of time
If the charging speed is increased to reduce charging time, then the battery can be charged faster, but the battery deteriorates more quickly
Solution Approach 1:
The charging speed is made dynamic rather than fixed. The management server adjusts the charging speed in real-time based on multiple factors including battery state of charge, temperature, predicted arrival time, and battery health status. This dynamic adjustment allows the system to optimize between charging speed and battery protection.
Solution Approach 2:
The system changes charging parameters (current, voltage, temperature) based on real-time battery conditions and predictive information. By modifying these parameters dynamically, the system can achieve fast charging when appropriate while protecting battery longevity, resolving the contradiction between speed and durability.
3Productivity
If the battery is charged in advance in the battery station, then the consumed battery can be instantaneously exchanged with the charged battery, but it requires predicting user arrival time and controlling charging speed accordingly
Solution Approach 1:
The management server acts as an intermediary between users, battery stations, and charging systems. It handles the complex tasks of predicting arrival times, optimizing charging schedules, and coordinating battery exchanges, thereby simplifying the user experience while managing the underlying complexity centrally.
Solution Approach 2:
The system enables automated battery exchange operations where users can independently exchange batteries at the station without requiring manual charging management. The charging process is self-regulated by the management server based on predictive algorithms, reducing the need for complex user-side control interfaces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system enables efficient battery charging and exchange management, even in unpredictable sharing service scenarios, by accurately controlling charging speeds and promoting battery exchange at suitable stations, thus enhancing the usability and availability of electric vehicles.
Implementation Method 1
a battery station capable of charging the battery by adjusting a charging speed
Data Source
AI summary
Provided is a battery management system of an electric vehicle suitable for a sharing service. A battery management system 100 includes: an electric vehicle 2 capable of travelling by driving a motor with an exchangeable battery 1; a battery station 3 capable of charging the battery 1 by adjusting a charging speed; and a management server 4 connected to the electric vehicle 2 and the battery station 3 through a communication network. The management server 4 quantitatively evaluates exchangeability of the battery 1 stored in the battery station 3, on the basis of at least a position of the electric vehicle 2 and a battery remaining amount of the battery 1 mounted on the electric vehicle 2, determines the charging speed of the battery 1 of the battery station 3, on the basis of an evaluation value of the exchangeability of the battery 1, and transmits control information relevant to the determined charging speed, to the battery station 3.