EV Wireless Charging Dynamic Space Reassignment
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Solution Overview
Problem
Existing power supply devices for electric vehicles cannot efficiently utilize limited areas due to the sequential movement of vehicles to completion areas after charging, resulting in empty spaces that cannot be used for vehicles still charging, limiting the number of power supply spaces available.
Innovation Solution
A power supply system with wireless power transmission coils and a vehicle movement control unit that allows electric vehicles to park in line, enabling one vehicle to move out of a power supply space after charging is complete and another to take its place, optimizing space usage by allowing vehicles to move forward along the same route.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicles are sequentially moved to completion area after charging is complete, then power supply order is maintained, but empty spaces are created in power supply area reducing space utilization
Solution Approach 1:
The system dynamically reassigns power supply space assignments based on real-time charging status. When a vehicle completes charging, its space is immediately reassigned to the next waiting vehicle, creating a dynamic rather than static space allocation system that eliminates empty spaces while maintaining operational reliability.
Solution Approach 2:
The patent introduces a temporal dimension to space management by allowing vehicles to skip ahead in the queue and occupy spaces non-sequentially. Instead of strict linear progression, vehicles can jump to appropriate spaces based on their charging needs and availability, effectively adding a time-based reorganization layer to the spatial arrangement.
2Reliability
If empty space is created when vehicle moves to completion area, then power supply order is maintained, but larger parking space length is required for parallel parking
Solution Approach 1:
The system implements dynamic space reassignment where the length requirement of each power supply space is adaptively optimized. Instead of designing for maximum parallel parking needs, spaces are dynamically allocated to match actual vehicle lengths and charging durations, reducing overall infrastructure length while maintaining operational reliability through real-time reassignment.
Solution Approach 2:
The patent changes the parameter of space length from a fixed design constraint to a variable that can be optimized based on actual usage patterns. By monitoring vehicle lengths, charging durations, and queue positions, the system adjusts space allocations to minimize total length while ensuring reliable power supply ordering through intelligent reassignment algorithms.
3Productivity
If fixed power supply spaces are allocated in limited area, then space utilization is reduced, but vehicle movement control becomes simpler
Solution Approach 1:
The patent implements a dynamic control system that automatically manages vehicle movement and space allocation in real-time. The control system monitors charging status, vehicle queue position, and space availability, then dynamically generates movement instructions to optimize power supply capacity without requiring complex manual intervention or rigid fixed allocations.
Solution Approach 2:
The system enables vehicles to effectively self-manage their positioning and space allocation through automated communication with the control system. Vehicles report their charging status and receive automated instructions for movement and space assignment, reducing the complexity of centralized control while maximizing power supply capacity through distributed decision-making.
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
This configuration allows for more efficient use of space by enabling multiple power supply spaces in a limited area, reducing the length required for each space and allowing for continuous power supply without the need for cable connections, enhancing the operational efficiency and convenience of electric vehicle charging.
Implementation Method 1
a power transmission coil provided in each of a plurality of power supply spaces in which electric vehicles are to park in line one behind another from a head side to a tail side of the power supply spaces, a power supply unit performing the power supply to the electric vehicle via the power transmission coil when the power transmission coil faces a power reception coil provided in the electric vehicle
Data Source
AI summary
A system includes: a power transmission coil in each of power supply spaces where electric vehicles can park in line one behind another from a head side to a tail side of the power supply spaces, and a power supply circuit supplying power to the electric vehicle via the power transmission coil when the power transmission coil faces a power reception coil in the electric vehicle. The system further includes: a controller making the electric vehicles park in line one behind another from the head side, moving one electric vehicle parked in a leading power supply space of the power supply spaces to a boarding area after stopping the power supply to the one electric vehicle, and moving another electric vehicle located behind the one electric vehicle to a power supply space at the head side.