Wireless Power Transfer Control for Communication Interruption Checks
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Solution Overview
Problem
Existing wireless power transfer systems face challenges in promptly detecting interruptions in wide area wireless communication during vehicle travel and ensuring safe resumption of processing.
Innovation Solution
A control device that switches to a magnetic coupling check when wide area wireless communication is interrupted for less than a first threshold and performs a compatibility check when the interruption exceeds the threshold, ensuring safety and prompt resumption of processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system performs comprehensive compatibility checks after wide area wireless communication interruption, then safety is ensured, but the resumption time increases
Solution Approach 1:
The system changes the check type parameter based on the interruption time parameter. When interruption time is short, a simplified magnetic coupling check is performed. When interruption time is long, a comprehensive compatibility check is performed. This parameter-based adaptation resolves the contradiction by adjusting the safety verification level according to the actual risk situation.
Solution Approach 2:
The check mechanism transitions from static (always performing full compatibility check) to dynamic (selecting check type based on interruption duration). The system dynamically adjusts the verification process by evaluating the interruption time and selecting the appropriate check level, thereby balancing safety requirements with time efficiency.
2Productivity
If the system promptly resumes processing after communication interruption, then productivity is improved, but safety verification may be insufficient
Solution Approach 1:
The safety verification process is segmented into two distinct types: magnetic coupling check for short interruptions and compatibility check for long interruptions. This segmentation allows the system to apply appropriate verification depth based on interruption duration, maintaining both productivity and safety.
Solution Approach 2:
For short interruptions, the system performs a partial check (magnetic coupling check) rather than the full compatibility check, which is sufficient for brief disruptions. This partial action maintains productivity while providing adequate safety verification for the specific context.
3Loss of time
If the system performs magnetic coupling check for short interruptions, then resumption time is reduced, but detection precision may be compromised
Solution Approach 1:
The system changes the detection method parameter based on the interruption time parameter. For short interruptions, magnetic coupling check is sufficient and faster. For long interruptions, compatibility check provides more precise verification. This parameter-based selection optimizes both speed and precision according to the specific situation.
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
Enables rapid detection of wide area wireless communication interruptions and safe resumption of processing, enhancing system reliability and safety in dynamic wireless power transfer systems.
Implementation Method 1
a magnetic coupling check to confirm a magnetic coupling state between the primary device and the secondary device
Data Source
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AI summary
In a wireless power transfer system that transfers power in a non-contact manner from a primary device included in a supply facility to a secondary device included in a traveling vehicle by using narrow area wireless communication and wide area wireless communication, a control device includes a processor configured to shift to a magnetic coupling check to confirm a magnetic coupling state between the primary device and the secondary device when an interruption time in which the wide area wireless communication is interrupted is equal to or less than a first threshold, and shift to a compatibility check to confirm that the primary device and the secondary device are compatible when the interruption time is greater than the first threshold. As a result, the control device that is capable of promptly detecting an interruption of the wide area wireless communication and promptly resuming a process after ensuring the safety is provided.