Automatic networking circuit and networking method for parallel battery packs via CAN bus
By configuring dual-channel CAN bus transceivers and on/off control modules for parallel battery packs, automatic networking and fault reconfiguration of battery packs are realized, solving the problems of limited networking capacity and low reliability of manual configuration of traditional parallel battery packs, and improving the networking stability and reliability of large-scale energy storage stations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HANGZHOU YICHUANG INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2026-03-11
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional parallel battery pack CAN bus communication suffers from limited network capacity and low reliability of manual configuration. Especially in large-scale energy storage station scenarios, the number of battery packs is limited by the characteristics of the CAN bus, and manual configuration of terminating resistors and BMS addresses is prone to errors.
Each parallel battery pack is equipped with a BMS control circuit containing a dual-channel CAN bus transceiver circuit and a CAN bus on/off control module. Independent communication segments are formed by cascading the upper and lower CAN buses, and segment separation and electrical pass-through are achieved. Automatic addressing and timeout detection mechanisms are adopted to realize automatic networking and fault reconfiguration of battery packs.
It breaks through the limitation of CAN bus on the number of battery packs, realizes automatic networking without manual configuration, improves the stability and reliability of network communication, has fault redundancy capability, and avoids human operation errors.
Smart Images
Figure CN122137698A_ABST