Intelligent Battery Cell with Integrated H-Bridge Circuit
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Solution Overview
Problem
Current battery systems, particularly in electric vehicles, face complexity and cost due to the need for auxiliary units to generate alternating current and manage battery packs with multiple cells, which often require extensive sensor cables and lack integrated monitoring and switch functionality within the cells.
Innovation Solution
An intelligent battery cell system with an internal circuit, including a controller and H-bridge circuit, that allows for the disconnection from the main battery in bypass mode, enabling AC power generation and integrated switch functionality, reducing complexity and cost by integrating monitoring and switch capabilities within each cell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If auxiliary units are used to generate alternating current and manage battery packs, then AC voltage generation and battery control are achieved, but system complexity and cost increase
Solution Approach 1:
The patent integrates the H-bridge circuit, controller, and battery management functions directly into the battery cell structure, merging previously separate auxiliary units with the battery system. This consolidation eliminates the need for external auxiliary units while maintaining AC voltage generation capability and control functions.
Solution Approach 2:
The integrated circuit board performs multiple functions including H-bridge switching for AC generation, battery monitoring, and control operations within a single unit. This multi-functional design replaces multiple separate auxiliary units, reducing system complexity while maintaining versatility.
2Power
If battery packs with multiple cells are used, then power requirements are met, but extensive sensor cables and submodules are required
Solution Approach 1:
The patent divides the battery system into modular battery cells, each with its own integrated circuit board containing monitoring and control functions. This segmentation eliminates the need for extensive external sensor cables and submodules, as each cell is self-monitoring and self-managing.
Solution Approach 2:
Each battery cell includes an integrated controller that autonomously monitors its own parameters and manages its operation without requiring external sensor cables or submodules. This self-service capability reduces system complexity while maintaining the ability to meet power requirements through multiple cells.
3Measurement precision
If existing battery management systems are used, then cell parameter monitoring is achieved, but integration inside the cell and switch functionality are lacking
Solution Approach 1:
The patent combines parameter monitoring sensors, control logic, and H-bridge switching functions within the integrated circuit board that is mounted inside each battery cell. This merging provides precise monitoring while simultaneously delivering switch functionality, eliminating the need for separate external components.
Solution Approach 2:
The controller and H-bridge circuit are nested within the battery cell structure, with the circuit board integrated inside the cell housing. This nesting approach achieves high integration while providing full monitoring and switching capabilities without adding external complexity.
Data Source
AI summary
Systems, devices, computer-implemented methods, and/or computer program products that can facilitate an intelligent battery cell are addressed. In one example, a device can comprise: active battery cell material; and an internal circuit coupled to the active battery cell material and comprising: a circuit board; two alternating current (AC) power points; two isolated direct current (DC) power points; and a controller that can operate one or more switches on an H-bridge circuit to disconnect the device from a main battery in a bypass mode. In another example, a smart cell modulator can comprise: a set of smart battery cells; and a controller that can operate to selectively engage a subset of the smart battery cells to enable load sharing, distributed feedback control, circulate load across one or more smart battery cells of the set of smart battery cells to increase torque, and to enable speed requests.