Shape-Changing Vehicle Interior Panel for Hidden Tactile Controls
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Solution Overview
Problem
Vehicle interior panels often incorporate utilitarian features like switches and buttons, which can detract from their aesthetic appeal. Existing solutions, such as hidden mechanical switches, face challenges like worn markings and lack of tactile feedback, especially in low-light conditions.
Innovation Solution
A vehicle interior panel with a shape-changing surface, featuring an electromagnet that creates a localized recess or protrusion in the panel's surface when activated. This surface change reveals a control interface, such as a button, only when needed, providing a modern aesthetic while maintaining a smooth surface otherwise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If switches and buttons are incorporated into vehicle interior panels, then control functionality is provided, but aesthetic appeal deteriorates
Solution Approach 1:
The control interface is extracted from the visible panel surface and hidden within the panel body. The electromagnet and actuation pad are concealed inside, with only a subtle marking visible on the surface. This removes the visual distraction of traditional switches while preserving control functionality through a clean, aesthetic surface.
Solution Approach 2:
The control mechanism is nested within the panel structure. The electromagnet, actuation pad, and magnetic field generation system are all contained within the panel body, with the control interface embedded inside rather than protruding outward. This nesting allows the panel to maintain its aesthetic appearance while housing the necessary control components.
2Loss of information
If markings are used to indicate switch location, then user guidance is provided, but visibility and detectability worsen in dark conditions
Solution Approach 1:
The panel surface changes its visual properties in response to user interaction. When a user approaches or touches the panel, the surface can change color, illuminate, or reveal the control interface location through optical changes. This dynamic visual feedback provides guidance without requiring permanent markings that are hard to see in the dark.
Solution Approach 2:
The system provides real-time feedback to guide users to the control interface. Sensors detect user presence or touch, and the panel responds by illuminating, changing color, or revealing the control location. This active feedback system replaces static markings that are difficult to see in low-light conditions.
3Shape
If a smooth surface is maintained, then aesthetic appeal is improved, but tactile feedback for control interface deteriorates
Solution Approach 1:
The panel surface transitions from a smooth static state to a textured interactive state when activated. The electromagnet creates a localized magnetic field that causes the actuation pad to deform the elastic layer, creating a tactile sensation for the user. This dynamic transformation allows the surface to remain aesthetically smooth while providing tactile feedback when needed.
Solution Approach 2:
The physical parameters of the panel surface change in response to the electromagnet activation. The elastic layer's deformation, the actuation pad's position, and the magnetic field strength are all adjustable parameters that can be optimized to provide tactile feedback while maintaining overall surface smoothness. The surface transitions between different physical states to balance aesthetics and usability.
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
The shape-changing surface effectively conceals control interfaces until activated, enhancing the panel's aesthetic appeal while providing intuitive user interaction through tactile and visual cues, even in low-light conditions.
Implementation Method 1
an electromagnet underlying the outer surface is activated
Implementation Method 2
the actuation pad being attracted to the electromagnet when the electromagnet is activated
Implementation Method 3
an elastic layer between the substrate and the decorative layer, wherein the elastic layer biases the localized recess toward the base contour
Data Source
AI summary
A vehicle interior panel includes an electromagnet configured to add a localized recess to a base contour of the panel when activated. The recess can provide a visual and tactile feature along the outer surface of the panel to allow a user to interact with the panel. The panel may be touch sensitive and/or include a proximity sensor that triggers formation of the recess.