Battery power control method and device, battery management system and electric equipment

By employing a hierarchical grouping and fusion approach, precise power limiting control is achieved for multiple fault signals in the battery system. This solves the problems of low control accuracy and insufficient efficiency in existing technologies under concurrent multi-fault scenarios, and enables more efficient and real-time battery safety protection.

CN122402307APending Publication Date: 2026-07-17HEFEI LIGAO POWER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI LIGAO POWER TECH CO LTD
Filing Date
2026-06-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In scenarios with multiple concurrent faults, existing technologies for power limiting control suffer from low precision and poor flexibility, and are prone to over- or under-limiting issues, failing to effectively balance battery safety and usage efficiency.

Method used

By using a hierarchical grouping approach, multiple fault signals of the battery system are divided into different groups based on the fault impact mechanism. The power limiting coefficients for single faults and fault groups are determined separately, and the power limiting coefficients within and between groups are fused to generate a comprehensive power limiting coefficient to adjust the output power of the battery system.

Benefits of technology

It achieves more precise and efficient power limiting control in multi-fault scenarios, reduces online computational complexity, improves the real-time performance and reliability of control, and avoids the risk of combined explosions.

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Abstract

本申请公开了一种电池功率的控制方法、装置、电池管理系统及用电设备,属于电池技术领域。该方法包括:获取电池系统的N个故障信号的量化值;基于故障影响机理,将N个故障信号划分为至少两个故障组;对于每个故障信号,基于故障信号的量化值,确定故障信号的单故障限功率系数;对于每个故障组,基于故障组包含的每个故障信号的单故障限功率系数,确定故障组的故障组限功率系数;对至少两个故障组的故障组限功率系数进行融合,得到综合限功率系数;基于综合限功率系数,调整电池系统的输出功率。根据本申请实施例,通过分层分组融合的多故障综合限功率方式,能够在多故障场景下实现更精准、高效的电池限功率控制。
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