Longitudinal EV Charging Chain to Reduce Buried Pad Complexity
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Solution Overview
Problem
Current wireless charging systems for electric vehicles face challenges in efficiently managing and maintaining wireless power transmission pads, particularly in high-traffic areas where multiple pads are required, leading to spatial restrictions and maintenance difficulties.
Innovation Solution
A method for configuring a longitudinal wireless charging chain by aligning electric vehicles equipped with wireless power transmission/reception pads using sensors and V2X communication, where vehicles detect and align with each other to optimize pad placement and power transmission, reducing the need for multiple buried pads and simplifying maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple wireless power transmission pads are buried in the road to charge multiple electric vehicles at an intersection, then the number of vehicles that can be charged simultaneously increases, but the complexity of pad management and maintenance increases
Solution Approach 1:
The patent merges multiple wireless power transmission functions into a single pad by enabling vehicles to form power transmission chains where each vehicle acts as both a power receiver and transmitter. This allows one physical pad to serve multiple vehicles through sequential power transfer, reducing the total number of pads needed while maintaining the ability to charge multiple vehicles simultaneously.
Solution Approach 2:
Each electric vehicle is equipped with both wireless power reception and transmission capabilities, making it a multi-functional device. Vehicles can receive power from the ground pad and simultaneously transmit power to following vehicles in the chain, allowing a single pad to support multiple vehicles through universal power transfer functionality.
2Adaptability or versatility
If wireless charging pads are buried in the road for high-traffic areas, then wireless charging availability increases, but the difficulty of pad maintenance increases
Solution Approach 1:
The patent segments the power transmission function across multiple mobile vehicles rather than relying on a single fixed infrastructure pad. Each vehicle becomes an independent power transmission node, distributing the charging function across multiple movable units that can be replaced or maintained without affecting the entire system.
Solution Approach 2:
Vehicles in the charging chain serve each other by transmitting power to following vehicles. The system uses the vehicles themselves as the maintenance-friendly alternative to buried pads, where power transmission capability resides in the vehicles rather than in difficult-to-maintain ground infrastructure.
3Ease of operation
If wireless power transmission pads are deployed to enable wireless charging, then charging convenience improves, but the initial investment cost increases
Solution Approach 1:
The patent makes electric vehicles multi-functional by equipping them with both power reception and transmission capabilities. This allows the vehicle fleet itself to serve as the power transmission infrastructure, eliminating the need for expensive ground pad installations while maintaining wireless charging convenience.
Solution Approach 2:
Instead of deploying expensive physical power transmission infrastructure (ground pads), the patent uses vehicles that have already been manufactured with power transmission capabilities. The existing vehicle power systems are copied and utilized for wireless power transmission, avoiding the need for separate infrastructure investment.
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 approach allows for efficient wireless charging of multiple electric vehicles using a single power supply device, reducing initial investment costs and addressing battery capacity and weight issues, while minimizing power waste and enhancing maintenance ease.
Implementation Method 1
electric energy is transmitted to the wireless charging reception pad of the vehicle by inducing magnetic resonance to charge the battery provided in the vehicle
Implementation Method 2
The distance to the second vehicle may be calculated using either one or both of an ultrasonic sensor and a Light Detection and Ranging (LiDAR) provided in the first vehicle
Implementation Method 3
The distance to the second vehicle may be calculated using either one or both of an ultrasonic sensor and a Light Detection and Ranging (LiDAR) provided in the first vehicle
Data Source
AI summary
A method of configuring a longitudinal wireless charging chain by a first vehicle, includes detecting a second vehicle in which a longitudinal wireless charging chain is configurable; calculating a distance to the second vehicle; performing, based on the calculated distance being within a first distance, lateral alignment with the second vehicle; and performing, based on the calculated distance being within a second distance, longitudinal alignment with the second vehicle.