Battery State Detector Wiring Simplification
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Solution Overview
Problem
Existing battery state detectors require complex communication wiring configurations that are cumbersome and increase the communication load on controllers, especially when the number of batteries or stacks in a battery pack varies.
Innovation Solution
A battery state detector with a main unit and subunits connected via separate communication lines, where the main unit detects the state of one battery assembly and transmits management information to a controller via a distinct communication line, allowing for a simpler configuration and reduced communication load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a single communication line connects the controller to all battery state detection units, then the controller can directly receive data from all units, but the communication wiring becomes complex and the communication load on the controller increases
Solution Approach 1:
The battery state detector is divided into a main unit and subunits. Subunits detect battery states and transmit data via a first communication line to the main unit, which then transmits aggregated data to the controller via a second communication line. This segmentation reduces the communication burden on the controller and simplifies the overall wiring structure.
Solution Approach 2:
The main unit acts as an intermediary between the subunits and the controller. It receives detection results from multiple subunits through the first communication line, processes the data, and then transmits the processed information to the controller through the second communication line, thereby reducing the direct communication load on the controller.
2Device complexity
If the communication wiring is simplified to reduce controller load, then the system becomes easier to configure, but the ability to handle varying numbers of batteries or stacks is reduced
Solution Approach 1:
The main unit is designed with universal functionality to handle detection data from any number of subunits. It can aggregate and process data from varying numbers of battery assemblies or stacks, making the system adaptable to different battery pack configurations while maintaining the simplified two-line communication structure.
Solution Approach 2:
The system allows dynamic addition or removal of subunits without requiring modification of the communication wiring structure. The main unit dynamically adapts to the number of connected subunits, enabling flexible battery pack configurations while maintaining wiring simplicity.
Data Source
AI summary
A battery state detector includes a main unit configured to detect a state of one battery assembly in a battery pack storing therein a plurality of battery assemblies each including a plurality of battery cells arranged in rows, a subunit configured to detect a state of a battery assembly in the battery pack other than the battery assembly that is a detection target of the main unit, and a first communication line that connects the main unit with the subunit. The main unit is connected to a controller configured to control the battery pack via a second communication line that is separate from the first communication line.