Gas Sensor Baseline Recovery in Battery Management
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Solution Overview
Problem
Existing battery management systems face delays in recovery time when errors occur in gas sensors, necessitating a solution to ensure stable operation and efficient data acquisition.
Innovation Solution
A battery management apparatus and method that sets identification information for each gas sensor through a serially connected power supply line, allowing for accurate delivery of baseline information from a higher-level BMS, even after hardware replacement or errors, by controlling power supply and communication with gas sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gas sensor error occurs and recovery procedure is executed, then system stability is maintained, but recovery time is extended
Solution Approach 1:
The patent applies preliminary action by pre-storing baseline information in the higher-level BMS before gas sensor errors occur. When an error happens, the stored baseline information is immediately retrieved and transmitted to the gas sensor, eliminating the need for time-consuming on-site data collection and significantly reducing recovery time while maintaining system stability
Solution Approach 2:
The higher-level BMS acts as an intermediary that stores and manages baseline information centrally. Instead of requiring direct on-site measurement during recovery, the higher-level BMS mediates the recovery process by providing pre-stored baseline data to the gas sensor, streamlining the recovery procedure and reducing time loss
2Loss of time
If baseline information is obtained from higher-level BMS, then recovery time is reduced, but identification information management complexity increases
Solution Approach 1:
The patent applies universality by using a single serially connected power supply line to serve multiple functions: both providing power to gas sensors and transmitting identification information. This multi-functional approach reduces the need for separate communication channels and simplifies the overall system architecture, offsetting the complexity of managing identification information through the existing power infrastructure
3Reliability
If gas sensor hardware is replaced, then sensor functionality is restored, but baseline information may be lost
Solution Approach 1:
The patent applies copying by maintaining baseline information in the higher-level BMS as a backup copy, independent of the gas sensor hardware. When a gas sensor is replaced, the baseline information is copied from the higher-level BMS to the new sensor, ensuring that the information is preserved and transferred without loss, thereby maintaining sensor functionality and information integrity
Data Source
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AI summary
A battery management apparatus according to an embodiment disclosed herein includes a communication unit configured to communicate with a plurality of sensors and a controller configured to set identification information of each of the plurality of sensors and obtain base line information of each of the plurality of sensors based on the identification information.