Wireless Battery System Daisy Chain Cell Controller Power
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Solution Overview
Problem
Existing wireless communication systems in battery management for hybrid electric and electric vehicles face issues with short communication distances and high power consumption in cell controllers, leading to potential errors and inefficiencies.
Innovation Solution
A wireless battery system where cell controllers are connected to a battery controller in a daisy chain manner using radio communication, with passive reception to reduce power consumption and enhance communication reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication is performed using wireless tags on the CCs, then wireless communication can be established, but communication distance is short and communication errors tend to occur
Solution Approach 1:
The patent introduces an intermediary approach where the BC acts as a central coordinator that receives data from all CCs simultaneously. This mediator architecture allows CCs to communicate only with the BC rather than directly with each other, reducing communication distance requirements and minimizing communication errors in the wireless battery system.
Solution Approach 2:
The patent merges the communication function of multiple CCs into a single centralized communication point (the BC). Instead of each CC communicating independently with other CCs, all communication is merged through the BC, which consolidates data reception and reduces the overall communication complexity and error potential in the system.
2Reliability
If CCs perform one-to-one wireless communication to reduce communication errors, then communication reliability improves, but power consumption of CCs increases
Solution Approach 1:
The BC serves as an intermediary that centralizes communication responsibilities. CCs only need to communicate with the BC rather than maintaining active communication with multiple other CCs, significantly reducing their power consumption while the BC handles the coordination and data aggregation centrally.
Solution Approach 2:
The system implements a self-service architecture where the BC autonomously manages communication coordination, data reception, and processing. CCs simply transmit their data to the BC without needing to actively manage communication protocols or maintain connections with other CCs, reducing their operational complexity and power requirements.
Data Source
AI summary
A wireless battery system is provided in which wireless communication errors are reduced and CC's power consumption is less. A wireless battery system including a plurality of cell controllers connected to battery cells and a battery controller which is connected by radio with the plurality of cell controllers, wherein the battery controller and the plurality of cell controllers are connected by radio in a daisy chain manner and the plurality of cell controllers are controlled by passive reception. This makes it possible to provide a wireless battery system in which wireless communication errors are reduced and CC's power consumption is less.