Lead-Acid Battery Desulfation via Variable PWM Signals
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Solution Overview
Problem
Existing technologies fail to optimize Lead-Acid battery performance by not utilizing variable Pulse Width Modulated (PWM) signals effectively to address sulfation issues, which affect battery life and efficiency, and lack real-time measurement and control capabilities for battery metrics.
Innovation Solution
A Category Specific Device using analogue or digital electronic circuitry with a computer processor and software to generate and control PWM signals, applying variable frequency and amplitude to Lead-Acid batteries, thereby ionizing sulfate molecules and optimizing battery performance through desulfation and charging processes, with AI-driven diagnostics and prognostication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If high frequency-low current output signal is used in prior art PWM methodologies, then energy consumption is reduced, but battery restoration effectiveness deteriorates due to insufficient current to address sulfation issues
Solution Approach 1:
The patent employs periodic pulsed current delivery with variable duty cycles, switching between high-frequency low-current modes for energy efficiency and high-current modes for effective sulfation removal. The controller alternates between different pulse frequencies and current levels to balance energy consumption with restoration effectiveness.
Solution Approach 2:
The system dynamically adjusts PWM signal parameters including frequency, duty cycle, and peak current based on real-time battery condition monitoring. The controller modifies the pulse waveform characteristics to optimize the balance between energy efficiency and sulfation removal effectiveness throughout the restoration process.
2Reliability
If variable PWM signals with high current are applied to optimize battery performance, then sulfation removal effectiveness improves, but device complexity increases due to advanced control requirements
Solution Approach 1:
The system incorporates real-time monitoring of battery parameters such as voltage, current, and temperature, with the controller using this feedback to automatically adjust PWM signal parameters. This closed-loop control simplifies the operation by eliminating manual intervention while maintaining optimal restoration effectiveness.
Solution Approach 2:
The controller autonomously manages the complex task of varying PWM parameters based on battery condition assessment. The system performs self-adjustment of pulse frequency, duty cycle, and current levels without requiring external control, thereby reducing operational complexity while maintaining high restoration effectiveness.
3Measurement precision
If real-time monitoring and AI diagnostics are implemented, then battery life prognostication accuracy improves, but manufacturing cost increases
Solution Approach 1:
The monitoring system is designed to serve multiple functions: real-time battery parameter measurement, sulfation detection, state of charge estimation, and life prognostication. By consolidating these functions into a single integrated system, the patent reduces overall system cost while maintaining high measurement precision and diagnostic accuracy.
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
The device enhances battery performance by reducing sulfation, extending battery life, and optimizing charging efficiency, allowing for real-time monitoring and prediction of battery health and remaining life, thereby improving overall battery operation and reducing maintenance costs.
Implementation Method 1
The PWM signal Peak Amplitude is controlled in a manner, increasing or decreasing in real time, creating a signal amplitude of a frequency and peak current providing a desirous frequency and amplitude to the battery, corresponding to a pre-determined target value considering the effect of the battery's internal resistance, which maximizes the ionic affect upon the sulfate molecule. This ionization process applied to the sulfate molecule PbSO4, causes the sulfate radical SO4 to ionically separate and repel from the lead plate
Data Source
AI summary
Improvements in a battery optimization and restoration device that uses a means of varying the regulator voltage as a function of time and discharge event timing and depth in order to establish a consistent power level for the charging of the capacitor. The device models the power supply regulation voltage as a first order factor as a function of time. The regulation voltage is modeled as a function of time so as to maintain an acceptable charging current at all times by charging a large capacitive load which is periodically discharged in a rapid pulse-like manner requires a modeled regulation voltage that is synchronized to the discharge frequency of the capacitor. The modeled charging is a function of the discharge depth and the charging height in initial capacitor voltage before the discharge and the final capacitor voltage after the discharge.