Battery Pack Authentication Using Near-Field ID Matching
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Solution Overview
Problem
In the context of electric vehicles and charging systems, there is a risk of incorrect battery pack control due to the potential for controllers to mistakenly identify and manage battery packs from adjacent vehicles or charging slots, compromising safety and security, especially when multiple vehicles or chargers are within the range of wireless communication.
Innovation Solution
A method involving near-field communication, such as Bluetooth Low Energy (BLE), is used to authenticate power storage packs by transmitting and matching identification information between the electric vehicle, charging device, and battery packs, ensuring correct identification and preventing erroneous control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If wireless communication is used to control battery packs, then convenience and automation are improved, but the risk of erroneous control of adjacent battery packs increases
Solution Approach 1:
The patent introduces an authentication mechanism as an intermediary step between wireless communication and battery pack control. The controller authenticates the battery pack by verifying identification information before executing control commands, preventing erroneous control of adjacent battery packs while maintaining automation convenience
Solution Approach 2:
The patent performs authentication of identification information before the actual control operation. This preliminary action ensures that the correct battery pack is identified and selected, preventing control errors while maintaining the automated workflow
2Adaptability or versatility
If multiple battery packs are within wireless communication range, then system versatility is improved, but identification accuracy deteriorates
Solution Approach 1:
The authentication mechanism acts as an intermediary that resolves the ambiguity of multiple battery packs in range. By verifying unique identification information, the system can accurately distinguish and select the intended battery pack even when multiple packs are within wireless communication range
Solution Approach 2:
The patent applies local quality by ensuring that each battery pack has unique identification information and that the authentication is performed specifically for the targeted pack. This allows the system to handle multiple battery packs with different characteristics without compromising identification accuracy
Data Source
AI summary
An electric movable body transmits a signal including identification information identical to identification information retained in a first power storage pack via near-field communication when the first power storage pack is detached from the electric movable body. A charging device wiredly transmits the identification information received from the electric movable body to a second power storage pack. The second power storage pack transmits via near-field communication a signal including the identification information received from the charging device. The electric movable body collates whether or not the identification information included in the received signal matches the identification information retained in the first power storage pack.