Battery Management System for Kinetic Energy Regeneration
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Solution Overview
Problem
Existing battery systems lack an efficient method to recharge batteries using recaptured energy from kinetic sources, such as moving vehicles, without causing interference or damage between battery cells.
Innovation Solution
A battery management system connected to an energy regeneration device and motion detection system, which controls the recharging process by comparing output voltage with charging voltage and enabling recharging only when the vehicle is in motion and sufficient recaptured energy is available, using isolation circuits to prevent mutual interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the battery is equipped with a charger capable of using recaptured energy, then the battery can be recharged with regenerated energy, but the system complexity increases due to additional components (energy regeneration device, motion detection device, controller)
Solution Approach 1:
The patent combines the energy regeneration device, motion detection device, charger, and controller into an integrated battery management system. The controller serves as a central hub that coordinates motion detection, energy regeneration, and charging operations, merging multiple functions into a unified system that reduces overall complexity despite adding recaptured energy capability.
Solution Approach 2:
The controller performs multiple functions: it receives motion indicators from the motion detection device, compares output voltage with charging voltage, controls the charger operation, and manages battery charging. This multi-functional approach consolidates control logic into a single component, reducing the need for separate control circuits for each function.
2Loss of energy
If the battery is recharged with recaptured energy from moving vehicles, then energy efficiency improves, but the reliability decreases due to potential interference or damage between battery cells
Solution Approach 1:
The controller performs preliminary voltage comparison before enabling charging. It compares the output voltage from the energy regeneration device with the charging voltage required by the battery cells, and only enables charging when the output voltage is sufficiently higher. This preliminary check prevents improper charging conditions that could damage battery cells.
Solution Approach 2:
The system continuously monitors the output voltage from the energy regeneration device and the motion indicator status, providing feedback to the controller. The controller uses this feedback to dynamically control the charging process, enabling or disabling charging based on real-time conditions, which prevents interference or damage between battery cells.
3Measurement precision
If motion detection is used to control recharging, then charging accuracy improves by ensuring proper charging conditions, but the device complexity increases due to additional sensing and control components
Solution Approach 1:
The controller acts as an intermediary between the motion detection device and the charger. It receives the motion indicator signal, processes it along with voltage comparison results, and then controls the charger accordingly. This intermediary role simplifies the overall system by providing a single control point that coordinates between the motion sensor and charging circuitry.
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 safe and efficient recharging of batteries with regenerated energy, extending battery life and maintaining system isolation, allowing seamless replacement of lead-acid batteries with lithium-ion batteries while maintaining compatibility with existing charging infrastructure.
Implementation Method 1
a motion detection device connected to the controller, wherein the controller receives a motion indicator from the motion detection device
Implementation Method 2
When the vehicle stops, the kinetic energy may be captured and used to charge the battery if the battery is equipped with a charger capable of using the recaptured energy
Implementation Method 3
comparing the output voltage from the energy regeneration device with a charging voltage for the battery
Implementation Method 4
the controller enables a connection between the energy regeneration device and the charger to charge the plurality of battery cells
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
A battery with a battery management system is capable of charging (818) the battery with recaptured energy from an energy regeneration device. The battery management system charges (818) 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 (806).