Battery Controller Antenna Switching for Cell Communication
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Solution Overview
Problem
The existing battery control system faces increased communication performance issues and costs when the number of cell controllers (CCs) increases, as a single battery controller (BC) may struggle to handle multiple CCs effectively through wireless communication.
Innovation Solution
The system employs one antenna for each cell controller or group of controllers, with a battery controller using a switch to alternate between antennas for communication, allowing efficient wireless communication while minimizing the need for additional BCs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of cell controllers increases to handle more cells, then communication coverage and control capability are improved, but system cost increases due to needing more battery controllers
Solution Approach 1:
A single battery controller is designed to perform multiple functions by switching between different antennas, enabling it to communicate with multiple cell controllers sequentially. This multi-functionality allows one battery controller to replace what would traditionally require multiple battery controllers, thereby improving communication coverage without proportionally increasing system cost.
Solution Approach 2:
The battery controller employs a switching mechanism that dynamically connects different antennas at different time slots. This dynamic antenna switching enables the single battery controller to adaptively communicate with multiple cell controllers, providing flexible communication coverage while maintaining cost efficiency.
2Ease of manufacture
If wireless communication is used between battery controller and cell controllers, then wiring cost and assembly cost are reduced, but communication performance becomes insufficient when the number of cell controllers increases
Solution Approach 1:
Instead of improving communication performance by adding more battery controllers (one-dimensional scaling), the invention transitions to a different approach by utilizing multiple antennas with switching (introducing temporal dimension). This allows a single battery controller to achieve multi-point communication capability, maintaining wireless communication's manufacturing advantages while improving communication performance through antenna diversity.
Data Source
AI summary
In the battery control system pertaining to the present invention, one antenna is provided for each cell controller or each group of cell controllers. A battery controller switches between antennas by using a switch and performs wireless communication with each cell controller or each group of cell controllers. Hence, even if the number of cell controllers increases, a countermeasure can be taken by adding antennas and changing switches, and an increase in the number of battery controllers can be suppressed.