Road-Side Wireless Power Resumption After Charging Outage
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Solution Overview
Problem
The resumption method after an outage in a road-side power feeding device during non-contact power feeding for vehicles is unclear, leading to inefficiencies and safety concerns.
Innovation Solution
A non-contact power feeding system with wide-area and narrow-area wireless communication devices and an abnormality determination unit to manage power transfer resumption post-outage, ensuring efficient and safe power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the road-side power feeding device executes a predetermined operation upon detecting abnormality, then safety is improved, but the complexity of the control system increases
Solution Approach 1:
The system performs preliminary actions by storing communication history and abnormality information before resumption. The abnormality determination unit prepares resumption control strategies in advance based on detected abnormality types, and the communication control unit restores communication connection using previously stored history, avoiding complex real-time decision-making during resumption.
Solution Approach 2:
The communication control unit acts as an intermediary that manages the complex resumption process. It uses stored communication history as a mediator to restore connections systematically, and coordinates between the abnormality determination unit and power transmission control unit, simplifying the overall control architecture while maintaining safety.
2Productivity
If communication history is stored for resumption, then resumption efficiency is improved, but memory requirements and data management complexity increase
Solution Approach 1:
The system extracts only the essential communication history data needed for resumption rather than storing complete communication records. The storage unit keeps condensed information such as connection status, abnormality type, and resumption outcomes, which are the critical elements needed for efficient resumption while minimizing storage requirements.
Solution Approach 2:
Communication history is stored preliminarily during normal operation and abnormal events, capturing only necessary resumption information at the moment it occurs. This preliminary capture of essential data avoids the need for continuous extensive data logging, reducing storage requirements while maintaining resumption efficiency.
Data Source
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AI summary
An object is to clarify a method of resuming a road-side power feeding device after outage in the road-side power feeding device, and to realize both safety and efficiency in resumption of a power transfer process after the outage. An in-travel non-contact power feeding system which supplies power from a road-side power feeding device to a traveling vehicle equipped with a vehicle-side power reception device in a non-contact manner, in which the road-side power feeding device includes a first communication device capable of executing wide-area wireless communication with the vehicle-side power reception device, a second communication device capable of executing narrow-area wireless communication with the vehicle-side power reception device, and an abnormality determination unit that determines abnormality in the road-side power feeding device, and the road-side power feeding device is caused to execute a predetermined operation in a case where the abnormality determination unit determines generation of the abnormality.