Battery Module Assembly Verification Using Unique ID Detection
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Solution Overview
Problem
Existing battery management systems for work machines are unable to detect mis-assembly of battery modules, leading to inaccurate battery state estimations, potential damage, and failure.
Innovation Solution
A battery management system that includes a data bus, measurement devices, and a controller, which provides instructions to obtain unique identifier information from measurement devices connected to battery modules, allowing the system to determine if the modules are properly assembled by comparing the received identifiers with expected configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the controller uses standard data bus communication without unique identifier verification, then the system complexity is low and ease of operation is maintained, but the reliability of battery module assembly detection is insufficient leading to mis-assembly undetected
Solution Approach 1:
The controller performs preliminary detection of unique identifiers from measurement devices before proceeding with normal battery management operations. This preliminary action enables the system to verify proper assembly configuration in advance, preventing undetected mis-assembly while maintaining straightforward operational procedures.
Solution Approach 2:
Unique identifiers serve as an intermediary mechanism between the controller and measurement devices. These identifiers enable the controller to distinguish and verify the proper connection of specific battery modules without requiring complex hardware modifications, thus improving detection reliability while keeping system complexity manageable.
2Measurement precision
If the controller implements unique identifier detection and comparison, then the measurement precision of assembly configuration is improved, but the loss of time for detection and measurement increases
Solution Approach 1:
The unique identifier detection is performed as a preliminary check during system initialization or assembly verification phases. By conducting this precise measurement early in the process, the system ensures accurate assembly configuration detection without significantly impacting overall operational time, as the detection integrates into existing startup or diagnostic routines.
3Reliability
If the system monitors all measurement devices for unique identifiers, then the reliability of detecting mis-assembly is improved, but the use of energy for communication and processing increases
Solution Approach 1:
The system extracts only the essential unique identifier information from measurement device communications, rather than processing all available data. This selective extraction approach enables reliable mis-assembly detection by focusing on critical identification data, thereby reducing the energy consumption associated with data communication and processing while maintaining detection reliability.
Data Source
AI summary
In some implementations, a controller may provide first instructions to a plurality of measurement devices, wherein the plurality of measurement devices are configured to obtain measurements from a plurality of battery modules of a battery pack. The controller may receive one or more first responses from one or more first measurement devices of the plurality of measurement devices based on providing the first instructions, wherein the one or more first responses include first unique identifier information identifying one or more first unique identifiers associated with the one or more first measurement devices. The controller may determine, based on the one or more first unique identifiers, whether the plurality of battery modules are improperly assembled.