EV Charging Port Power Sharing Authentication
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Solution Overview
Problem
The increasing number of electric vehicles has led to charging infrastructure shortages in some regions, causing delays for vehicles waiting to charge, as a single occupied charger prevents others from charging, and there is a need for secure and convenient power sharing between vehicles.
Innovation Solution
An electric vehicle equipped with multiple charging ports, including one that can provide power to another vehicle, uses an authentication unit and control unit to manage power distribution based on electronic key authentication, allowing secure and convenient power sharing through near-field wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single charger is occupied by one vehicle, then charging reliability for that vehicle is ensured, but charging accessibility for other vehicles deteriorates
Solution Approach 1:
The charging port of the first vehicle is designed to serve dual functions: receiving power from a charger and providing power to other vehicles. This multi-functionality allows the same physical interface to adapt to different charging scenarios, resolving the contradiction between ensuring reliable charging for the occupied vehicle while maintaining accessibility for other vehicles in the vicinity.
2Adaptability or versatility
If power is shared with another vehicle, then charging accessibility for other vehicles is improved, but power availability for the first vehicle deteriorates
Solution Approach 1:
The system dynamically adjusts power distribution based on real-time authentication results and charging needs. When another vehicle is authenticated, the first vehicle can dynamically share its charged power through the charging port, while maintaining the ability to prioritize its own power needs when necessary. This dynamic control resolves the contradiction by making power availability flexible rather than fixed.
Solution Approach 2:
The first vehicle serves itself and others by providing power to authenticated vehicles. The vehicle autonomously manages power sharing without requiring external charger infrastructure, using its own charged battery as the power source. This self-service capability allows the vehicle to improve charging accessibility for others while maintaining control over its own power availability.
3Adaptability or versatility
If charging ports are made multi-functional, then charging accessibility is improved, but device complexity increases
Solution Approach 1:
The charging port is designed as a universal interface that can both receive power from external chargers and provide power to other vehicles. By using the same physical port for both functions rather than adding separate ports, the system improves charging accessibility without proportionally increasing device complexity. The control unit manages the dual functionality through software control rather than requiring separate hardware paths.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables another vehicle to charge while a first vehicle is already connected, enhancing convenience and reducing waiting times by securely and efficiently managing power distribution between vehicles.
Implementation Method 1
uses an authentication unit and control unit to manage power distribution based on electronic key authentication, allowing secure and convenient power sharing through near-field wireless communication
Data Source
AI summary
An electric vehicle comprises: a plurality of charging ports, at least one of which is configured to provide power to another vehicle; and at least one processor or circuit configured to function as following units: an authentication unit configured to authenticate an electronic device associated with the other vehicle using an electronic key; and a control unit configured to control, in accordance with an authentication result of the authentication unit, power provision to the other vehicle using the charging port configured to provide the power.