EV Charging Cable Reclosing Control for Fault Recovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric vehicle charging cable control devices require manual user intervention to resume charging after faults, leading to inconvenience and potential safety risks when faults persist.
Innovation Solution
An auto-re-closing device with a fault sensor and microcontroller unit that stops charging when a fault occurs multiple times within a predetermined time and retries charging when the fault is determined to be fixed, ensuring safety and user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the charging cable control device stops charging immediately when a fault occurs, then safety is improved, but user convenience deteriorates due to frequent manual intervention required
Solution Approach 1:
The charging cable control device automatically detects faults, stops charging, determines whether the fault is temporary or persistent, and resumes charging without user intervention when the fault is temporary. This self-service mechanism eliminates the need for users to manually check and retry charging, resolving the contradiction between safety and user convenience.
Solution Approach 2:
The device implements a feedback mechanism where the controller continuously monitors charging status, detects faults, determines fault types (temporary vs. persistent), and automatically adjusts charging operation accordingly. This closed-loop feedback system enables automatic recovery from temporary faults while maintaining safety, improving both reliability and ease of operation.
2Reliability
If the charging cable control device requires manual user intervention to resume charging after a fault, then safety is improved by preventing automatic retry on persistent faults, but productivity deteriorates due to charging interruptions
Solution Approach 1:
The controller automatically determines whether a fault is temporary or persistent and autonomously decides whether to resume charging, eliminating the need for manual user intervention. This self-service capability maintains safety by preventing automatic retry on persistent faults while improving productivity by automatically resuming charging on temporary faults without user action.
Solution Approach 2:
The device dynamically adjusts its charging resumption behavior based on fault characteristics. Instead of a fixed manual-intervention requirement, the system adapts its operation mode based on real-time fault assessment, automatically retrying when safe and maintaining stop when persistent faults are detected, thus balancing safety and charging efficiency.
3Ease of operation
If the charging cable control device automatically retries charging after a fault, then user convenience is improved, but safety deteriorates due to potential damage from persistent faults
Solution Approach 1:
The controller implements intelligent feedback-based decision making that assesses fault characteristics before automatically retrying charging. By analyzing whether the fault is temporary or persistent through monitoring and determination logic, the system only automatically retries when safe, preventing damage from persistent faults while maintaining user convenience through automatic recovery from temporary faults.
Solution Approach 2:
The device dynamically adjusts its automatic retry behavior based on real-time fault assessment. Instead of a fixed automatic retry mechanism, the system adaptively decides whether to resume charging based on the nature of the detected fault, enabling automatic convenience when safe while preventing unsafe automatic retries, thus resolving the contradiction between user convenience and safety.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention discloses an auto re-closing device and method for an electric vehicle charging cable control device. The present invention is directed to an auto re-closing device and method for an electric vehicle charging cable control device, which are capable of stopping charging when a fault occurs and retrying to resume charging when charging is stopped.