EV Wireless Charging Coil Alignment for Lined-Up Vehicle Queues
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power supply systems for electric vehicles require vehicles to temporarily leave their lined-up state to receive power from roadside devices, leading to inefficient and complex operations.
Innovation Solution
A wireless power supply facility with a wireless communication unit, power supply coils installed at intervals, and an inter-vehicle calculation unit that allows multiple electric vehicles to remain in a lined-up state while receiving simultaneous power supply by calculating and adjusting inter-vehicle distances for proper alignment of power supply and reception coils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric vehicles temporarily move out of the lined-up state to receive power from roadside power supply devices, then power supply can be achieved, but the operation becomes complex and time-consuming
Solution Approach 1:
The patent merges multiple power supply operations into a single coordinated process where multiple electric vehicles receive power simultaneously while maintaining their lined-up state. The power supply device coordinates with multiple vehicles' power reception coils at once, eliminating the need for individual vehicle maneuvers and reducing operational complexity while maintaining reliable power supply.
Solution Approach 2:
The patent implements preliminary alignment where electric vehicles are positioned in a lined-up state before power supply begins. The inter-vehicle calculation unit pre-calculates optimal positions and spacing, and the system prepares power supply coils in advance, allowing vehicles to receive power without leaving their lined-up configuration, thus simplifying operations.
2Reliability
If electric vehicles temporarily move out of the lined-up state to receive power, then power can be supplied, but the time required for power supply processing increases
Solution Approach 1:
The patent enables continuous power supply to multiple electric vehicles simultaneously while they remain in their lined-up traveling state. The power supply device activates multiple power supply coils in coordination with the vehicles' positions, allowing uninterrupted power transfer without requiring vehicles to stop or leave their formation, thereby minimizing time loss.
Solution Approach 2:
Multiple power supply operations are merged into a single simultaneous process. The system coordinates power transmission to multiple vehicles at the same time using multiple power supply coils, reducing the total processing time compared to sequential power supply while maintaining reliable power delivery to each vehicle.
3Productivity
If multiple power supply coils are installed at predetermined intervals to enable simultaneous power supply, then power supply efficiency improves, but the system complexity increases
Solution Approach 1:
The power supply system is segmented into multiple independent power supply coils installed at predetermined intervals along the road. Each coil can operate independently to supply power to corresponding vehicles in the lined-up formation. This segmentation enables simultaneous power supply to multiple vehicles (improving productivity) while keeping each coil's control relatively simple (managing system complexity).
Solution Approach 2:
The system dynamically coordinates the activation and power levels of multiple power supply coils based on the real-time positions and power needs of the lined-up electric vehicles. The inter-vehicle calculation unit continuously adjusts parameters to optimize power distribution across multiple coils, enabling efficient simultaneous power supply while adapting to changing conditions.
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 efficient and simplified simultaneous power supply to multiple electric vehicles while maintaining their lined-up state, reducing the time and complexity of the power supply process.
Implementation Method 1
a plurality of power supply coils 411c, 421c, and 431c installed at a predetermined interval so as to enable a plurality of electric vehicles 10A, 20A, and 30A traveling in line to be simultaneously supplied with electric power wirelessly
Data Source
AI summary
A power supply facility includes a wireless communication unit capable of wirelessly communicating with a plurality of electric vehicles traveling in line, a plurality of power supply coils installed at a predetermined interval, and an inter-vehicle calculation unit configured to acquire a plurality of pieces of information including power supply coil interval information indicating a distance of the predetermined interval, information on an entire length of a vehicle body of each of the plurality of electric vehicles, and information on a position of a power reception coil installed in each of the vehicle bodies, and calculate an inter-vehicle distance for leading each of the plurality of electric vehicles to be parked in accordance with the acquired plurality of pieces of information so as to align the plurality of power supply coils with the power reception coils to face each other.