Battery Pack Wireless Channel Mapping for Packet Error Control
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Solution Overview
Problem
Communication environments in battery packs of vehicles are degraded due to electric wave diffusion, leading to increased packet error rates and compromised reliability in wireless communication systems.
Innovation Solution
A communication control device that sets two channels as a primary selection communication group, acquires communication results, determines the environment based on these results, and updates a channel map to ensure reliable communication by avoiding channels with high error rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is performed in a battery pack, then communication convenience is improved, but communication reliability deteriorates due to electric wave diffusion
Solution Approach 1:
The system dynamically changes communication parameters by selecting different channels based on detected communication environment quality. The channel map stores quality information for multiple channels, and the system switches channels to maintain reliable communication when the current channel experiences degradation due to electric wave diffusion.
2Area of stationary object
If communication is performed in degraded environment, then communication coverage is maintained, but packet error rate increases
Solution Approach 1:
The communication control device performs communication environment determination by analyzing communication results and feeds back this information to update the channel map. This feedback mechanism allows the system to identify channels with high packet error rates and avoid them in future communications, maintaining coverage while improving reliability.
3Reliability
If channel selection is performed dynamically, then communication reliability is improved, but system complexity increases
Solution Approach 1:
The system performs preliminary communication environment determination and stores channel quality information in a channel map before actual communication needs arise. This advance preparation allows the system to quickly select reliable channels without complex real-time decision-making, reducing operational complexity while maintaining reliability.
Data Source
AI summary
A communication control device is a communication control device that controls wireless communication in a battery pack installed in a vehicle. The communication control device includes a channel setting unit that sets two channels as a primary selection communication group, the two channels being selected from a plurality of channels used for the wireless communication. Further, the communication control device includes a communication control unit that executes communication in the primary selection communication group and a communication result acquisition unit that acquires a communication result in the primary selection communication group. Further, the communication control device includes a communication environment determination unit that determines a communication environment of the channel, based on the communication result, and a channel map update unit that updates a channel map indicating whether the channel is communicable, based on a result being determined.