A multi-channel battery dynamic equalization and state of health diagnosis system for BMS board

By combining a multi-dimensional matrix-based balanced topology module and a high-precision sampling module with dynamic impedance decoupling analysis, the problems of electromagnetic coupling and diagnostic accuracy in BMS systems are solved, achieving efficient energy transfer and health status diagnosis, and meeting the needs of large-scale battery management.

CN122371401APending Publication Date: 2026-07-10SHENZHEN YUESONG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN YUESONG TECH CO LTD
Filing Date
2026-04-10
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing BMS systems suffer from electromagnetic coupling and current disturbances that contaminate sampling signals during multi-channel equalization, making it difficult to achieve high-precision health status diagnosis and adapt to the needs of ultra-large-scale, high-rate charging and discharging and full life cycle management.

Method used

Employing a multi-dimensional matrix equalization topology module, a synchronous sensing high-precision sampling module, a dynamic impedance decoupling analysis module, and a multi-constraint collaborative control central processing unit, the system achieves deep collaboration between energy transfer and state perception by adjusting the equalization duty cycle and sampling window timing in real time. It also performs health status diagnosis by combining a voltage decomposition model and a state-space model.

Benefits of technology

It improves the energy utilization rate and health status diagnosis accuracy of the battery pack, ensures that the system does not interfere with sampling under high power equalization operation, extends battery life, and adapts to large-scale energy storage applications.

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Abstract

The application belongs to the technical field of battery management, and particularly relates to a BMS plate multi-channel battery dynamic equalization and health state diagnosis system, which comprises a multi-dimensional matrix type equalization topology module, performs bidirectional energy transfer and path reconstruction; a synchronous perception high-precision sampling module, synchronously captures voltage and current under excitation; a dynamic impedance decoupling analysis module, identifies intrinsic parameters based on a model; and a multi-constraint cooperative control central processing unit, implements optimized control and state tracking. Through the above scheme, the application converts equalization excitation into diagnosis characteristics, realizes battery consistency maintenance and high-confidence health evaluation.
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