Modular Battery Pack Voltage-Difference Detection for Connection Mapping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery systems face challenges in automatically identifying and managing series-parallel connection configurations, leading to inefficient design and management of modular battery packs.
Innovation Solution
A battery system comprising a control host and multiple battery packs, where each battery pack includes a cell module, an anti-reverse module, a physical interface, and a detection module. The control host determines the series-parallel connection configuration by acquiring voltage difference detection signals from each battery pack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple battery packs are connected in series or parallel to form an energy storage system, then the system voltage or capacity can be increased to meet desired specifications, but the battery manufacturers cannot effectively design and manage the battery systems due to unknown connection configurations
Solution Approach 1:
The patent applies preliminary action by equipping each battery pack with a detection module and physical interface configuration before the battery packs are connected into the energy storage system. The detection module proactively measures voltage differences and generates identification signals that automatically convey connection configuration information to the management system, eliminating the information loss problem without requiring manufacturers to predict or manually configure connection details.
2Ease of manufacture
If battery pack manufacturers use standardized software and hardware solutions, then manufacturing complexity is reduced and ease of manufacture improves, but the ability to effectively design and manage diverse battery system configurations is lost
Solution Approach 1:
The patent implements self-service by enabling battery packs to automatically identify and report their own connection configurations through built-in detection modules and physical interface signaling. Each battery pack autonomously measures voltage differences across its terminals and generates identification signals that convey series or parallel connection information to the management system, eliminating the need for complex manufacturer-designed configuration management while maintaining standardized hardware and software.
3Extent of automation
If automatic identification of series-parallel connection configuration is implemented, then effective management of battery systems is achieved, but additional detection modules and communication interfaces are required in each battery pack
Solution Approach 1:
The patent applies universality by designing the physical interface to serve multiple functions: it provides electrical connection for power transmission, enables communication between battery packs and the management system, and conveys connection configuration information through voltage difference signaling. The detection module similarly performs multiple functions by measuring voltage differences for identification purposes while also monitoring battery pack operational status, thereby achieving automatic identification without proportionally increasing device complexity.
Data Source
AI summary
A battery system according to the present disclosure includes a control host and multiple battery packs electrically connected to each other, and each battery pack is communicatively connected to the control host. Each battery pack includes a cell module, an anti-reverse module, a physical interface, and a detection module. The cell module is configured to be connected to the physical interface through the anti-reverse module, and the physical interfaces of the multiple battery packs are connected to each other. The detection module is configured to determine a voltage difference detection signal representing the voltage difference between the physical interface and the cell module. The control host is configured to determine a series-parallel connection configuration of all the battery packs in the battery system according to the voltage difference detection signal of each battery pack.