Battery Management Channel Switching for Faster Cell Data Transfer
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Solution Overview
Problem
Existing battery management systems face challenges in efficiently transmitting real-time battery information due to the need for individual transmission of data from each cell, which can prolong data transmission times, especially in devices requiring rapid communication like electric vehicles.
Innovation Solution
A battery management apparatus that flexibly selects a communication channel based on data amount and channel state, using a control unit to generate message packets tailored to CAN or CAN FD communication standards, allowing for faster transmission of battery state and diagnosis information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual transmission of data from each battery cell is used, then data transmission completeness is improved, but data transmission time increases
Solution Approach 1:
The patent combines multiple battery cell data transmission tasks into a single communication cycle. The control unit transmits data from multiple battery cells simultaneously by preparing multiple data sets in advance, allowing parallel data delivery that reduces total transmission time while maintaining completeness of all cell information.
Solution Approach 2:
The control unit prepares multiple data sets containing battery cell information in advance before the communication cycle begins. This preliminary preparation allows the data to be ready for immediate transmission, eliminating sequential access delays and enabling faster overall data delivery while ensuring all cell data is complete.
2Productivity
If flexible communication channel selection is implemented, then transmission efficiency is improved, but system complexity increases
Solution Approach 1:
The patent changes the parameter of communication channel selection by implementing a data amount-based decision logic. The control unit determines whether to use a first or second communication channel based on whether the data amount exceeds a threshold value, creating a simple binary decision system that balances transmission efficiency with minimal complexity.
3Speed
If data amount-based channel selection is used, then communication speed is improved, but communication reliability may decrease
Solution Approach 1:
The patent implements feedback by continuously monitoring the data amount and selecting the appropriate communication channel based on current transmission needs. This adaptive approach ensures that when data amounts are large, the system uses the faster first communication channel, while for smaller data amounts, it uses the more reliable second communication channel, thus maintaining both speed and reliability through context-aware selection.
Data Source
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AI summary
The present disclosure is directed to providing a battery management apparatus and method, which may shorten a transmission time of a plurality of response information by flexibly selecting a communication channel. According to an aspect of the present disclosure, transmission efficiency for a plurality of response information may be improved because a communication channel may be flexibly selected according to a data amount of response information to be transmitted. In addition, according to an aspect of the present disclosure, there is an advantage that a communication channel may be flexibly selected according to a state of each of a plurality of communication channels as well as the data amount of response information.