Wireless Battery Monitoring With Lead-Acid Emulation Charging
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Solution Overview
Problem
Existing battery monitoring systems fail to provide real-time performance analysis, leading to unnoticed issues until the golf cart stops functioning, and replacing lead-acid batteries with lithium-ion batteries poses challenges due to voltage and charging differences.
Innovation Solution
A battery management system with wireless communication capabilities for remote monitoring, software updates, and energy regeneration, along with a controller that emulates lead-acid battery behavior using pulse-width modulation to ensure compatibility and safety during charging and discharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a battery monitoring system is installed, then battery performance can be monitored, but users still cannot detect problems until the golf cart stops
Solution Approach 1:
The patent implements a feedback mechanism where the battery management system continuously monitors battery parameters (voltage, current, temperature) and transmits this information wirelessly to a remote device. This closed-loop feedback allows users to receive real-time battery status updates and alerts, enabling them to detect problems before the golf cart stops, thus resolving the information loss and reliability contradiction
2Duration of action of stationary object
If lead-acid batteries are replaced with lithium-ion batteries, then battery performance and life are improved, but compatibility with existing charging infrastructure is lost
Solution Approach 1:
The patent employs a controller that emulates lead-acid battery behavior by copying the voltage characteristics and charging response of lead-acid batteries. The system uses pulse-width modulation (PWM) to simulate the gradual voltage rise typical of lead-acid batteries, allowing lithium-ion batteries to work with existing lead-acid charging infrastructure while maintaining the performance and life advantages of lithium-ion technology
3Ease of operation
If remote monitoring capabilities are added, then battery management is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single battery management system controller, including battery parameter monitoring, wireless communication, software update reception, and lead-acid emulation. This multi-functional design provides remote monitoring capabilities and improved ease of operation while minimizing the increase in device complexity by consolidating features rather than adding separate systems
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
Enables remote monitoring and safe replacement of lead-acid batteries with lithium-ion batteries, extending battery life and ensuring compatibility with existing charging infrastructure.
Implementation Method 1
a controller that emulates lead-acid battery behavior using pulse-width modulation
Implementation Method 2
A battery management system with wireless communication capabilities for remote monitoring
Data Source
AI summary
A battery with a battery management system and a wireless communication module is capable of charging the battery with recaptured energy from an energy regeneration device. The battery management system charges the battery with the energy regeneration device if the output voltage from the energy regeneration device is larger than the charging voltage of the battery. The battery management system can enable and disable charging of the battery with the energy from the energy regeneration device according to an instruction received wirelessly.