Wireless Charging Head Alignment for EV Coil Positioning
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Solution Overview
Problem
Wireless charging stations for electric vehicles face inefficiencies and longer charging cycles when the receiving coil of the electric car is not aligned with the power supply coil of the charging station, affecting charging efficiency and user satisfaction.
Innovation Solution
A charging station equipped with a front-mount module, support members, moving assemblies, and control units that adjust the position of the power supply coil to align it with the receiving coil of the vehicle, using motors and detection elements to optimize alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electric car is parked at the charging station, then wireless charging can be provided, but charging efficiency decreases when the receiving coil is not aligned with the power supply coil
Solution Approach 1:
The charging head is made movable through a moving assembly that can adjust its position along the support member. The motor device drives the movable member to move the charging head to different positions, enabling dynamic alignment adjustment to match the receiving coil position, thereby resolving the contradiction between charging efficiency and alignment accuracy
Solution Approach 2:
The detection element detects the position of the receiving coil and provides feedback to the control unit. The control unit processes this information and controls the motor device to adjust the charging head position accordingly, creating a closed-loop feedback system that ensures accurate alignment and maintains high charging efficiency
2Productivity
If the receiving coil fails to be aligned with the power supply coil, then the electric car can still be charged, but the charging cycle time increases
Solution Approach 1:
The detection element performs preliminary detection of the receiving coil position before charging begins. The system pre-adjusts the charging head position to the optimal location based on detected information, ensuring alignment is established before the charging process starts, thereby reducing charging cycle time while maintaining precision
Solution Approach 2:
The manual alignment process is replaced with an automated system combining detection elements, control units, and motor devices. This mechanical-to-automated substitution enables precise and rapid alignment adjustment, significantly reducing the time required to achieve proper coil alignment while improving alignment precision
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
Rapid alignment of the power supply coil with the receiving coil improves charging efficiency, reduces charging cycle time, and enhances user satisfaction by ensuring effective wireless charging.
Implementation Method 1
a power supply coil of the charging station is induced to a receiving coil of the electric car so as to provide the required electric power for the electric car
Data Source
AI summary
A charging station includes a front-mount module, a support member, two moving assembles, two supporting arms and a control unit. The front-mount module includes a charging head and a coil disposed within the charging head. The support member is separated from the front-mount module. Each of the moving assembles includes a movable member supported by the support member, and a motor device for moving the movable member along the support member. Each of the supporting arms is pivotally connected to the front-mount module and one of the supporting arms, respectively. The control unit is electrically connected to the motor devices for controlling the motor devices to adjust the position of the front-mount module.