Battery Module Optical Links Using Wavelength-Separated Paths
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Solution Overview
Problem
Current battery systems face challenges with wired connections, including high costs, electromagnetic compatibility issues, limited space, and high power consumption, which are not adequately addressed by existing communication methods.
Innovation Solution
The implementation of an optical communication system using different wavelengths to connect battery module monitors with a battery system monitor, eliminating the need for wired connections and reducing electromagnetic compatibility issues, while allowing for efficient communication and identification of individual battery modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired connections are used for communication between battery modules, then reliable data transmission is achieved, but cost increases and electromagnetic compatibility issues arise
Solution Approach 1:
The patent replaces wired mechanical/electrical connections with wireless optical communication. The battery management system uses optical signals (light) transmitted through air or vacuum to communicate between modules, eliminating physical wire connections that cause electromagnetic interference. This substitution resolves the contradiction by maintaining communication reliability while eliminating electromagnetic compatibility problems.
Solution Approach 2:
The patent introduces optical signals as an intermediary medium for communication between battery modules. Instead of direct electrical wiring, optical transmitters and receivers use light waves as a mediator to transmit data wirelessly, thereby achieving reliable communication without electromagnetic interference from traditional wired connections.
2Reliability
If wired connections are used for communication between battery modules, then stable communication is achieved, but device complexity and space requirements increase
Solution Approach 1:
The patent replaces complex wired connection systems with simplified wireless optical communication. By using optical transmitters and receivers that communicate through space rather than physical wires, the system reduces installation complexity, eliminates cable management requirements, and decreases overall device complexity while maintaining stable communication.
Solution Approach 2:
The patent extracts and removes the physical wiring infrastructure from the battery module communication system. By taking out the wires, connectors, and associated mounting hardware, the system achieves stable communication with significantly reduced device complexity and space requirements.
3Loss of information
If wired connections are used for communication between battery modules, then data transmission is achieved, but power consumption increases
Solution Approach 1:
The patent replaces energy-intensive wired electrical communication with optical wireless communication. Optical transmitters use light-emitting diodes or lasers that consume less power than maintaining voltage signals through resistive wires, especially over long distances. This substitution enables data transmission while reducing overall power consumption of the battery management system.
4Ease of operation
If traditional communication methods are used, then communication between modules is achieved, but cost and space efficiency are reduced
Solution Approach 1:
The patent substitutes traditional wired communication infrastructure with wireless optical communication, eliminating the need for extensive copper wiring, connectors, and shielding materials. This substitution improves communication efficiency while significantly reducing material usage and system cost.
Solution Approach 2:
The optical communication system serves multiple functions: data transmission, module identification, and system synchronization, all through a single wireless interface. This multi-functionality improves ease of operation while reducing the quantity of communication components needed compared to traditional wired 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
This solution enables efficient, cost-effective communication between battery modules, reduces electromagnetic interference, and optimizes space usage, improving the overall management and monitoring of battery systems.
Implementation Method 1
at least one optical transmitter is a light-emitting diode
Implementation Method 2
at least one optical receiver is a photodiode or phototransistor
Data Source
AI summary
A battery system includes: a plurality of battery modules including a plurality of battery cells, wherein each battery module comprises a battery module monitor configured to monitor a state of the battery cells; a battery system monitor; and an optical communication system configured to connect the battery module monitors with the battery system monitor over at least two communication paths, wherein the optical communication system is configured to use at least two different wavelengths of light to differentiate between the communication paths.