LC-Circuit Battery String Control Without Extra Wiring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current energy storage strings with energy management devices require extensive manual wiring between the master controller and local controllers, leading to high labor and time costs, as well as challenges with wireless communication due to metalized environments.
Innovation Solution
The energy storage system employs closed-loop LC-circuits between the master control unit and local control units, using AC pulses to transmit power and data through the electrical connectors of the rechargeable cells, eliminating the need for additional wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual wiring is used between master controller and local controllers, then reliable power and data transmission is achieved, but labor cost and assembly time increase significantly
Solution Approach 1:
The patent combines power transmission and data communication into a single wiring harness, eliminating the need for separate dedicated power cables and communication buses. The local controllers draw power directly from the string through the same cables used for data exchange, significantly reducing wiring complexity and assembly time while maintaining reliable transmission.
Solution Approach 2:
The wiring harness is designed to serve multiple functions simultaneously: it provides power transmission from the string to local controllers, carries data bidirectionally between master and local controllers, and enables ground potential equalization. This multi-functional design eliminates the need for separate dedicated lines for each function.
2Power
If dedicated power bus is used for local controllers, then sufficient power supply is guaranteed, but device complexity and wiring quantity increase
Solution Approach 1:
The patent merges the power transmission function with the existing data communication wiring harness. Local controllers are designed to draw power directly from the string through the same cables used for data exchange, eliminating the need for separate dedicated power cables and reducing overall wiring complexity.
Solution Approach 2:
Each local controller is designed to be self-sufficient by drawing its operating power directly from the battery string through the existing wiring harness, without requiring external power sources or additional power distribution infrastructure. The controller autonomously manages its power consumption within the available capacity.
3Ease of manufacture
If wireless communication is used in metalized environment, then installation simplicity is improved, but communication reliability deteriorates due to signal blocking
Solution Approach 1:
The patent replaces wireless electromagnetic communication with wired electrical signal transmission through the existing power and data harness. This substitution eliminates signal blocking issues caused by the metalized battery environment, as the electrical connections provide direct, shielded pathways for data exchange between controllers.
4Reliability
If extensive manual wiring is performed, then system reliability is improved, but manufacturing cost and labor intensity increase
Solution Approach 1:
The patent combines multiple wiring functions (power transmission, data communication, ground equalization) into a single integrated wiring harness design. This reduces the total quantity of cables and connectors needed, simplifying the manufacturing process and reducing labor intensity while maintaining all necessary communication and power pathways for system reliability.
Solution Approach 2:
The wiring harness is designed as a multi-functional universal cable assembly that simultaneously handles power distribution, bidirectional data communication, and ground potential reference. This eliminates the need for separate dedicated lines for each function, reducing manufacturing complexity and labor requirements.
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 reduces wiring costs and time, enables efficient power and data transmission, and allows for a more compact and automated assembly process of battery systems.
Implementation Method 1
the first capacitor device and the energy storage string are forming part of a first closed-loop LC-circuit... transmitting power from the master control unit to the local control unit by supplying a sequence of first AC pulses to the first closed-loop LC-circuit
Implementation Method 2
a master AC signal generator... adapted for transmitting power to the local control unit by supplying a sequence of first AC pulses to the first closed-loop LC-circuit
Data Source
AI summary
An energy storage system includes an energy storage string formed by rechargeable cells connected in series and an energy management device including a master control unit and at least a first local control unit associated to a first rechargeable cell. A storage string connecting circuit is coupling a positive string terminal with a negative string terminal and a cell connecting circuit is coupling a positive and a negative cell terminal of the first rechargeable cell. The storage string connecting circuit includes a first capacitor device forming with the energy storage string a first closed-loop LC-circuit, and/or the cell connecting circuit includes a second capacitor device forming with the first rechargeable cell a second closed-loop LC-circuit. A master AC signal generator and a local signal generator are configured for generating a first and a second AC pulse in respectively the storage string connecting circuit and the cell connecting circuit.