Movable Transmitting Coil for Multi-Vehicle Wireless Charging
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Solution Overview
Problem
Existing wireless charging systems for vehicles require multiple transmitting coils, leading to high costs and complex infrastructure due to the need for one coil per vehicle, making them inefficient for charging multiple vehicles simultaneously.
Innovation Solution
A wireless charging system that includes a movable transmitting coil and a linear track, allowing the coil to be positioned over multiple parking spaces, with a charge control module to manage the charging process, reducing the number of coils needed and enabling charging of multiple vehicles with a single coil.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple transmitting coils are used to charge multiple vehicles simultaneously, then the charging capacity and serviceability are improved, but the infrastructure cost and device complexity increase significantly
Solution Approach 1:
A single transmitting coil is designed to serve multiple parking spaces by being movable rather than fixed. The coil charge device can be positioned at different locations along a linear track to charge different vehicles, making one coil perform the function of multiple stationary coils, thereby reducing infrastructure cost and complexity while maintaining multi-vehicle charging capability
Solution Approach 2:
The transmitting coil is made movable through a linear motor system that allows it to move along a linear track spanning multiple parking spaces. This dynamic positioning capability enables a single coil to replace multiple fixed coils, reducing the number of components needed while maintaining the ability to charge multiple vehicles at different locations
2Reliability
If one transmitting coil is used for each vehicle, then the wireless power transfer efficiency is maintained, but the cost and complexity of the charging system increases
Solution Approach 1:
The single transmitting coil is designed with sufficient power capacity to serve multiple vehicles sequentially. By making the coil movable to different parking spaces, one coil performs the work of multiple coils, reducing the overall system cost while maintaining effective power transfer to each vehicle when it is positioned correctly
Solution Approach 2:
The system uses a linear motor to automatically move the transmitting coil to the appropriate parking space based on charging requests. This automated positioning system reduces the need for manual intervention and infrastructure complexity while maintaining the reliability of wireless power transfer to each vehicle
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 reduces the infrastructure costs by allowing a single transmitting coil to charge multiple vehicles, improving efficiency and scalability while maintaining effective wireless power transfer.
Implementation Method 1
A wireless charging system may utilize the mutual inductance between two inductive coils to provide power to the battery system of the HEV or EV. The electrical grid may induce a voltage at a first coil and, as a result of the inductive coupling between the first coil and a second coil connected to the battery system of the HEV or EV, the second coil will induce a voltage and subsequently charge the battery system of the HEV or EV.
Implementation Method 2
The linear motor is operable to move the coil charge device along the linear track.
Data Source
AI summary
A wireless charging system may be used to charge a battery in a vehicle via a receiving coil. The wireless charging system may include a coil charge device, a linear track, a linear motor, and a charge control module. The coil charge device includes a carriage and a transmitting coil positioned on the carriage. The linear track extends across a designated path. The coil charge device is positioned on and moveable along the linear track. The linear motor is operable to move the coil charge device along the linear track. The charge control module controls a position of the coil charge device along the designated path via the linear motor.