Ground Power Supply Abnormality Source Identification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In contactless power supply systems, determining the cause of power transfer abnormalities between power transmission and reception devices is challenging due to their physical separation, leading to potential misidentification of faults in either the power transmission or reception devices, which can affect multiple vehicles if left uncorrected.
Innovation Solution
Implementing a system with a power transmission control device and a power reception control device that count abnormality occurrences and notifications, using predetermined thresholds to determine whether the issue lies with the power transmission device or the power reception device, and adjusting counters based on notifications received from each side to accurately identify the source of the abnormality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If contactless power supply is implemented between power transmission device and power reception device, then power transfer is achieved without physical contact, but determining the cause of power transfer abnormalities becomes difficult due to physical separation
Solution Approach 1:
The patent implements a feedback mechanism where the power reception device sends abnormality occurrence notifications back to the power transmission device when power transfer abnormalities are detected. The power transmission control device counts these notifications and compares against a threshold to determine whether the abnormality originates from the transmission device or reception device, enabling accurate fault identification despite physical separation.
Solution Approach 2:
The patent introduces a communication system as an intermediary between the power transmission device and power reception device. This communication channel enables the exchange of abnormality occurrence notifications, allowing the two physically separated devices to share diagnostic information and enable remote fault determination.
2Productivity
If abnormality cause determination is delayed or inaccurate, then power supply continues with potential faults, but misidentification of faults in either transmission or reception devices can affect multiple vehicles
Solution Approach 1:
The patent implements preliminary action by having the power reception device detect and notify power transfer abnormalities in real-time during operation. The power transmission control device continuously counts these notifications and proactively determines the abnormality source by comparing the count against a predetermined threshold, enabling timely fault identification before the issue affects multiple vehicles.
Solution Approach 2:
The feedback mechanism enables continuous monitoring and real-time determination of abnormality causes. By counting abnormality occurrence notifications and comparing against thresholds, the system can identify faults promptly while maintaining accurate power supply operations, preventing misidentification that could affect multiple vehicles.
Data Source
AI summary
A ground power supply device includes a power transmission device, a ground-side communication device, and a power transmission control device. The power transmission device performs contactless power supply to a moving body including a power reception device. The ground-side communication device communicates directly or indirectly with the moving body. The power transmission control device is configured to: count the number of times a power transfer abnormality has occurred between the power transmission device and the power reception device or the number of times an abnormality occurrence notification that is sent from the moving body when the power transfer abnormality is detected in the moving body; and determine that there is an abnormality in the power transmission device when the number of times the power transfer abnormality has occurred or the number of times the abnormality occurrence notification has been received becomes equal to or greater than a predetermined value.