Dynamic Battery Model Adjustment for Charging Control
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Solution Overview
Problem
Conventional battery charging methodologies often result in undercharging or overcharging, reducing battery life and performance due to fixed voltage or current regulation without adequate monitoring.
Innovation Solution
A system and method that includes a processor and memory to receive state information from a battery sensor, measure charge and discharge curves, create a battery model, and adjust the model based on state information to optimize charging operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fixed voltage or current regulation scheme is used for battery charging, then charging process is simple to implement, but battery may be undercharged or overcharged reducing battery life
Solution Approach 1:
The patent implements a feedback mechanism where the controller continuously monitors battery voltage, current, and temperature, compares these values against the dynamic model predictions, and adjusts charging parameters accordingly. This closed-loop feedback system prevents undercharging and overcharging while maintaining charging control, resolving the contradiction between implementation simplicity and battery reliability.
Solution Approach 2:
The patent transitions from static fixed voltage/current regulation to dynamic charging control by continuously updating the battery model based on real-time state information and adjusting charging parameters dynamically. This dynamic adaptation allows the system to optimize charging while preventing damage, improving battery life without significantly complicating the charging control process.
2Device complexity
If conventional charging methodologies with fixed current levels are used, then charging system is simple, but battery performance and life are reduced due to undercharging or overcharging
Solution Approach 1:
The system employs feedback control where the controller receives real-time battery state information, compares it with model predictions, and adjusts charging current dynamically. This feedback mechanism enables the system to maintain optimal charging levels and prevent overcharging/undercharging without requiring complex hardware modifications, thus improving battery life while keeping system complexity manageable.
Solution Approach 2:
The patent dynamically changes charging parameters (voltage, current) based on real-time battery state and model updates. By continuously adapting these parameters rather than using fixed values, the system optimizes charging efficiency and prevents battery damage, resolving the contradiction between system simplicity and battery reliability.
3Ease of operation
If battery charging is monitored using conventional methodologies, then basic charging control is maintained, but accurate charge state estimation is difficult leading to undercharging or overcharging
Solution Approach 1:
The patent implements a feedback-based monitoring system where the controller continuously compares actual battery measurements (voltage, current, temperature) with predictions from the dynamic model. This feedback loop enables accurate state of charge estimation by detecting deviations between actual and predicted behavior, allowing precise monitoring while maintaining ease of operation through automated control.
Solution Approach 2:
The system performs preliminary actions by pre-establishing a dynamic battery model that predicts expected voltage, current, and temperature behavior during charging. By having these predictions ready before charging occurs, the system can immediately compare actual measurements against expected values and detect charging state inaccuracies, improving measurement precision without complicating the monitoring process.
Data Source
AI summary
Systems and methods for controlling battery charging are disclosed. According to one embodiment of the disclosure, a method can include receiving battery state information; determining, based on the battery state information, whether to adjust battery models; and, if so, adjusting the battery models.