Authenticated Battery Exchange Control for Secure EV Charging
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Solution Overview
Problem
The adoption of zero tail pipe emission vehicles has been slow due to high costs and limited driving range on a single charge, as well as long recharging times, particularly in densely populated cities with limited financial resources.
Innovation Solution
A portable electrical energy storage device security system that includes a controller and communications module for authentication, allowing charging only if the device is authenticated, and a tamper-resistant housing to prevent unauthorized access, along with collection, charging, and distribution machines that maintain a stock of fully charged devices for easy exchange, addressing cost and range issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication and security systems are added to battery packs, then reliability and protection against unauthorized use are improved, but device complexity increases
Solution Approach 1:
The security system is nested within the battery pack structure, with the controller integrated into the existing battery management system. The housing contains both the battery cells and the security components in a compact arrangement, allowing the security function to be embedded without significantly increasing overall device complexity.
Solution Approach 2:
The authentication system operates autonomously, with the controller automatically verifying authentication information and controlling charging/discharging operations without requiring external intervention. The system self-manages the security functions including authentication, authorization, and operational control.
2Reliability
If controlled charging and discharging operations are implemented, then battery protection and reliability are improved, but device complexity increases
Solution Approach 1:
The controller performs multiple functions including authentication verification, charging control, discharging control, and battery monitoring. By consolidating these functions into a single control unit, the system achieves comprehensive battery protection without proportionally increasing complexity.
Solution Approach 2:
The security control functions are merged with the battery management functions in a single integrated controller. This combination allows the system to manage both authentication and operational control through one unified device rather than separate independent systems.
Data Source
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AI summary
A network of collection, charging and distribution machines collect, charge and distribute portable electrical energy storage devices (e.g., batteries, supercapacitors or ultracapacitors). To charge, the machines employ electrical current from an external source, such as the electrical grid or an electrical service of an installation location. By default, each portable electrical energy storage device is disabled from accepting a charge unless it receives authentication information from an authorized collection, charging and distribution machine, other authorized charging device, or other authorized device that transmits the authentication credentials. Also, by default, each portable electrical energy storage device is disabled from releasing energy unless it receives authentication information from an external device to which it will provide power, such as a vehicle or other authorization device.