EV Charging Post Leakage Detection and Auto-Reset Control
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Solution Overview
Problem
Current electric vehicle charging systems face increased maintenance costs due to the inability of charging posts to automatically resume operation after a leakage event, requiring manual reset and resulting in downtime.
Innovation Solution
An interactive charging management system with a charging post and far-end control center that detects leakage events, stops charging, performs a test, and issues service notices to notify maintenance when necessary, allowing for remote monitoring and reduced downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the charging post stops charging when a leakage event is detected, then safety is improved, but the charging post cannot automatically resume operation resulting in increased maintenance costs and downtime
Solution Approach 1:
The charging post is equipped with automatic self-diagnosis and self-reset capabilities. When a leakage event occurs, the system automatically detects the fault, performs isolation of the affected circuit, and attempts automatic reset without requiring manual intervention. This self-service mechanism reduces maintenance costs and increases charging availability while maintaining safety through automatic fault handling.
Solution Approach 2:
The system implements continuous monitoring of leakage current with feedback control. When a leakage event is detected, the system provides immediate feedback to stop charging, and after automatic reset attempts, provides feedback on the restoration status. This feedback mechanism ensures safety while enabling automatic recovery to maintain charging availability.
2Reliability
If manual reset is required for failed charging posts, then safety is ensured through human verification, but maintenance costs increase and operational efficiency decreases
Solution Approach 1:
The charging post performs automatic self-diagnosis and self-reset operations, eliminating the need for manual intervention in most failure scenarios. The system autonomously verifies safety conditions through built-in monitoring circuits and automatically restores operation when safe, reducing both maintenance complexity and costs while maintaining safety through automated verification protocols.
Solution Approach 2:
The system performs preliminary safety checks and automatic reset attempts before requiring any manual intervention. By pre-configuring automatic protection mechanisms and recovery procedures, the system handles most safety verification and restoration tasks automatically, minimizing the need for complex manual maintenance operations.
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
The system reduces maintenance costs by automating the response to leakage events, ensuring continuous operation and improving charging management efficiency.
Implementation Method 1
The charging post is connected with the electric vehicle for detecting a leakage event
Data Source
AI summary
An interactive charging management system and a method thereof are provided. The present method includes following steps. A leakage event is detected when an electric vehicle is connected with a charging post. When the leakage event is not detected, the charging post is controlled to enter a charging state from a ready state, so as to continuously supply a charging power to the electric vehicle until the electric vehicle is completely charged. When the leakage event is detected, the charging post is controlled to stop supplying the charging power to the electric vehicle, and the electric vehicle is indicated to go offline, so as to perform a leakage test and determine whether to resume the ready state. When the charging post cannot resume the ready state, a service notice is issued to notify a curing unit to process.