Charging Support Device Overhead View Positioning
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Solution Overview
Problem
In non-contact charging systems for electric vehicles, determining the optimal positioning of the power transmission device relative to the vehicle for efficient charging is challenging, as existing technologies lack clear indicators for determining the appropriate alignment.
Innovation Solution
A charging support device that generates an overhead view image displaying the vehicle and its surroundings, using marks to indicate the positions of the power reception and transmission units, varying their color or size based on the positional relationship to indicate charging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-contact charging system is implemented with power transmission units in parking spaces, then power supply to vehicle battery is achieved, but ability to determine appropriate positioning for charging is insufficient
Solution Approach 1:
The system changes the color of marks displayed on the overhead view image to indicate different charging efficiency levels. When the power reception unit and power transmission device are properly aligned, the mark changes to a predetermined color (e.g., green), providing intuitive visual feedback to the driver about positioning accuracy without requiring complex measurements or calculations.
Solution Approach 2:
The system creates a virtual overhead view image that copies and represents the real-world positioning relationship between the vehicle and power transmission device. By displaying marks on this virtual image that correspond to actual physical positions, the system provides an intuitive visual representation that helps the driver understand the spatial relationship and achieve proper alignment for charging.
2Ease of operation
If overhead view image with marks is displayed to indicate positioning, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The system extracts only the essential information needed for positioning - the relative location of the power reception unit and power transmission device - and displays it as simple marks on an overhead view image. By extracting and displaying only this critical positioning information rather than processing and displaying all possible vehicle and environment data, the system maintains ease of operation while limiting the increase in device complexity.
Solution Approach 2:
The system provides real-time visual feedback by displaying marks on the overhead view image that indicate the current positioning status. As the vehicle moves into the correct position, the mark's appearance changes (color, size, or shape), giving the driver immediate feedback about alignment accuracy and guiding further positioning adjustments without requiring complex manual measurements or calculations.
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
Facilitates easy determination of the optimal positioning of the power transmission device relative to the vehicle, enhancing charging efficiency by providing visual feedback to the driver through color or size changes of the marks on the overhead view image.
Implementation Method 1
supplying a power by using the principle of electromagnetic induction or magnetic resonance
Implementation Method 2
supplying a power by using the principle of electromagnetic induction or magnetic resonance
Data Source
AI summary
A charging support device is used in charging a battery of a vehicle having a power reception unit on a bottom surface of the vehicle with power supplied from a power transmission device located outside the vehicle. The charging support device includes a controller that generates an overhead view image that displays a vehicle image of the vehicle and an image of a surrounding area of the vehicle captured by a camera. The controller displays, in the overhead view image, (i) a first mark indicating a position of the power reception unit and (ii) a second mark indicating a position of the power transmission device. The controller varies a color or a size of the second mark in a case where a positional relationship between the position of the power reception unit and the position of the power transmission device achieves a predetermined charging efficiency.