Inter-Vehicle Wireless Charging Alignment for EV Charging Chains
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Solution Overview
Problem
The existing wireless charging systems for electric vehicles face challenges in efficiently managing and maintaining a large number of wireless power transmission pads, especially in areas with varying traffic volumes, which limits their scalability and ease of use.
Innovation Solution
A method for configuring a lateral wireless charging chain by aligning electric vehicles equipped with wireless power transmission/reception pads, using sensors and cameras for precise alignment control, and enabling inter-vehicle power transfer to optimize charging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless power transmission pads are buried in the road for multiple electric vehicles, then wireless charging capability is improved, but device complexity and maintenance difficulty increase
Solution Approach 1:
The patent combines multiple wireless power transmission functions into a single vehicle-mounted transmission pad. Instead of requiring separate ground-buried pads for each vehicle, one vehicle's transmission pad can simultaneously charge multiple receiving vehicles through wireless power transfer, reducing the overall number of transmission pads needed in the system.
Solution Approach 2:
The patent introduces a vehicle-mounted wireless transmission pad as an intermediary device that moves between charging locations. This mobile transmission pad serves as a mediator that can establish wireless power transfer connections with multiple different receiving vehicles at different times and locations, eliminating the need for fixed ground-buried infrastructure at each charging point.
2Area of stationary object
If many wireless power transmission pads are buried in the road, then charging coverage is improved, but ease of repair deteriorates
Solution Approach 1:
The patent transitions from static ground-buried transmission pads to a dynamic vehicle-mounted transmission pad. The transmission pad is now mobile, mounted on a vehicle that can move to different locations to provide charging coverage. This dynamic approach maintains wide charging coverage while eliminating the need to physically access and repair numerous fixed underground pads, as the single mobile pad can be easily serviced when not in use.
3Adaptability or versatility
If wireless charging reception pads are positioned on vehicles, then charging flexibility is improved, but alignment precision with transmission pads becomes more difficult
Solution Approach 1:
The patent employs feedback mechanisms including sensors and cameras on both the transmitting and receiving vehicles to detect the relative position and orientation between the two vehicles. This feedback information is used by the control system to automatically adjust the receiving vehicle's position and orientation, ensuring precise alignment between the transmission and reception pads despite the mobility of both vehicles.
Solution Approach 2:
The patent replaces manual or mechanical alignment methods with automated optical and sensor-based alignment systems. Cameras and sensors detect the relative positioning of vehicles, and the control system automatically steers and positions the receiving vehicle to achieve optimal alignment, eliminating the need for complex mechanical alignment mechanisms or manual intervention.
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 solution allows for flexible and efficient wireless charging of multiple electric vehicles simultaneously, reducing the need for extensive infrastructure, improving maintenance ease, and enhancing charging speed.
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
Data Source
AI summary
A method of configuring a lateral wireless charging chain by a first vehicle includes detecting a second vehicle in which a lateral 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 control with the second vehicle, and performing based on the calculated distance being within a second distance, longitudinal alignment control with the second vehicle.