Appliance Battery Charging Profile Correction
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Solution Overview
Problem
Existing vehicle battery charging strategies fail to account for individual usage patterns, leading to uneven aging and reduced lifespan, as they rely on predetermined charging profiles that do not adapt to the unique state of health of each battery.
Innovation Solution
A method that adjusts the charging profile based on the current state of health of the battery by applying a correction value to the maximally permissible charging current, determined by comparing it to a reference state of health, ensuring that batteries are charged in a way that aligns with their specific aging behavior and usage patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a predetermined charging profile is used for all appliance batteries of the same type, then the charging process is simple and standardized, but the state of health of individual batteries cannot be taken into account, leading to uneven aging and reduced lifespan
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the charging current parameters based on the ascertained state of health of individual batteries. The charging profile is adapted by modifying the charging current magnitude according to each battery's specific condition, allowing the system to transition from fixed predetermined profiles to flexible, condition-based profiles that optimize both adaptability and manageability
Solution Approach 2:
The patent implements feedback by continuously monitoring and ascertaining the state of health of appliance batteries during operation. This feedback mechanism enables the system to detect individual battery conditions and adjust charging parameters accordingly, resolving the contradiction by making the charging process adaptive while maintaining systematic control through automated monitoring and adjustment
2Productivity
If fast charging is applied frequently to maximize productivity, then charging time is reduced, but the appliance battery is loaded considerably leading to accelerated aging behavior
Solution Approach 1:
The patent applies dynamics by making the charging current dynamic rather than fixed. The charging profile adapts in real-time based on the battery's state of health, allowing the system to switch between fast charging and gentler charging modes as needed. This dynamic adjustment enables the system to maximize charging speed when the battery can handle it while protecting lifespan when necessary, resolving the productivity-reliability contradiction
Solution Approach 2:
The patent changes the charging current parameter based on the battery's state of health. When the battery is in good condition, higher charging currents (fast charging) are applied to maximize productivity. When the battery shows signs of aging or degradation, the charging current is reduced to protect reliability. This parameter adaptation allows the system to optimize both charging speed and battery lifespan
Data Source
AI summary
A method for carrying out a process for charging an appliance battery of an appliance, with the following steps:providing a charging profile that specifies a maximally permissible charging current for charging the appliance battery in a manner depending on a state of charge of the appliance battery;ascertaining a current state of health of the appliance battery;providing a reference state of health that predetermines a customary state of health for a calendrical age of the appliance battery;charging the appliance battery in a manner depending on a corrected maximally permissible charging current, the corrected maximally permissible charging current being ascertained by applying a correction value to the maximally permissible charging current, the correction value being determined in a manner depending on a correction function, depending on a difference between the reference state of health and the current state of health.