Battery Equalization Scheduling for Charging-Life Tradeoffs
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Solution Overview
Problem
The inconsistency in the state of health and usage of electric vehicle batteries due to varying energy replenishment methods and user habits leads to reduced turnover efficiency, shortened service lives, and inconsistent performance, affecting user experience.
Innovation Solution
A battery balancing method and system that utilizes historical energy replenishment information to determine a balanced energy replenishment strategy, including fast charging, slow charging, and battery replacement, to equalize battery health and extend service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If slow charging is applied to batteries in the battery replacement station all the time, then the service life of batteries is extended, but the turnover efficiency of batteries is greatly reduced
Solution Approach 1:
The patent implements dynamic charging strategy by adjusting charging methods based on real-time battery state assessment. The system evaluates battery health status, cycle count, and remaining life to dynamically select between slow charging (for battery preservation) and fast charging (for turnover efficiency), resolving the contradiction between extending service life and maintaining productivity
Solution Approach 2:
The system changes charging parameters (charging speed, current, voltage) based on battery state parameters (health status, cycle count, remaining life). By monitoring and responding to parameter changes in battery condition, the system optimizes charging strategies to balance service life extension with turnover efficiency maintenance
2Productivity
If fast charging is used to improve turnover efficiency, then the productivity is improved, but the service life of batteries is shortened
Solution Approach 1:
The system dynamically adjusts charging speed based on battery health assessment. When batteries show signs of degradation or have reached optimal cycle counts, the system automatically reduces charging speed or switches to maintenance charging modes, preventing further degradation while maintaining acceptable turnover efficiency
Solution Approach 2:
The patent implements feedback mechanisms by continuously monitoring battery state (health, temperature, voltage) during and after charging. This feedback information is used to adjust future charging strategies, preventing excessive fast charging that would shorten service life while maintaining productivity through optimized charging schedules
3Ease of operation
If inconsistent energy replenishment methods are used according to user habits, then the ease of operation is improved, but the state of health consistency among batteries deteriorates
Solution Approach 1:
The system applies different charging strategies to different batteries based on their individual state characteristics. Each battery receives customized charging treatment (slow or fast charging) according to its specific health status, cycle count, and remaining life, while still allowing users to operate the system conveniently through automated decision-making
Solution Approach 2:
The system performs self-assessment of battery states and automatically selects appropriate charging methods without requiring user intervention. This maintains user convenience while ensuring consistent battery health management through automated, data-driven decisions about which batteries need slow charging versus fast charging
Data Source
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AI summary
The present invention provides a battery balancing method and system. The method includes: obtaining historical energy replenishment information, wherein the historical energy replenishment information includes a fast charging use degree and/or a slow charging use degree; judging whether the fast charging use degree and/or the slow charging use degree is higher than a corresponding set value, and determining an energy replenishment strategy of a battery according to the judgment result, wherein the determining an energy replenishment strategy at least includes: determining an energy replenishment mode to be adopted as fast charging, slow charging or battery replacement; and performing energy replenishment scheduling according to the energy replenishment strategy, wherein the energy replenishment scheduling includes scheduling of the battery and/or guidance to a user using the battery. By adopting the scheduling method and system of the present invention, the degrees of attenuation of batteries in the same batch can be basically consistent through balanced and reasonable energy replenishment means.