Wireless EV Charging Receiver Alignment for Stable Power Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless charging performance for electrified vehicles is inconsistent due to variations in distance and angle between the power transmitter and receiver, leading to delayed or interrupted charging sessions.
Innovation Solution
An electrified vehicle charging system that includes an actuator and position controller, utilizing sensors to align the power receiver with the power transmitter, maintaining or adjusting the vertical, horizontal position, or angle to ensure optimal alignment for efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless charging is performed without alignment control, then charging convenience is improved, but charging efficiency deteriorates due to distance and angle variations
Solution Approach 1:
The system performs self-alignment through actuators that automatically adjust the power receiver's position and angle based on sensor feedback, eliminating the need for manual alignment while maintaining high charging efficiency
Solution Approach 2:
Sensors continuously monitor the distance and angle between the power transmitter and power receiver, providing real-time feedback to the position controller which adjusts actuator positions to maintain optimal alignment during charging
2Productivity
If alignment control is implemented, then charging efficiency is improved, but device complexity increases
Solution Approach 1:
The actuator system serves multiple functions including position adjustment, angle control, and alignment maintenance, while the sensor suite performs both detection and feedback functions, reducing the need for separate dedicated components
Solution Approach 2:
The position controller integrates multiple control functions into a single control unit that coordinates actuators and processes sensor data, while the charging controller combines alignment control with charging management in one system
3Reliability
If alignment control is performed, then charging stability is improved, but charging time increases due to alignment preparation
Solution Approach 1:
The system performs alignment control before charging initiation, ensuring optimal position and angle are established in advance, so that once charging begins, the alignment is already optimized for efficient power transfer
Solution Approach 2:
The actuators continuously maintain alignment during the entire charging process, making real-time adjustments to compensate for any position or angle changes, ensuring uninterrupted optimal charging 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
This solution improves wireless charging efficiency by maintaining consistent alignment, reducing charging time delays and interruptions, and enhancing convenience by automating the alignment process.
Implementation Method 1
a sensor determining a relative position and an angle of the power receiver with respect to a power transmitter
Implementation Method 2
an actuator maintaining or changing at least one of a vertical position, a horizontal position, or an angle of a power receiver
Data Source
AI summary
An embodiment electrified vehicle charging system includes an actuator configured to maintain or change a vertical position, a horizontal position, or an angle of a power receiver provided in a vehicle and a position controller configured to determine a relative position and a relative angle of the power receiver relative to a power transmitter provided outside of the vehicle through a sensor and to perform an alignment control between the power transmitter and the power receiver through the actuator based on the relative position and the relative angle of the power receiver.