Vehicle Display With Magnetic Sliding Knob Positioning
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Solution Overview
Problem
Existing vehicle display devices are limited in providing services due to their fixed disposition in front of the driver and passenger seats, lacking flexibility and intuitive operation capabilities.
Innovation Solution
Integration of a sliding knob with a display, utilizing a guide rail and magnetic guidance system to ensure accurate location recognition and intuitive operation, eliminating wire structures for enhanced freedom and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a sliding knob is integrated with the display to eliminate wire structures, then the degree of freedom of the cockpit room is improved, but the location recognition accuracy of the knob may deteriorate
Solution Approach 1:
A magnetic guide part is introduced as an intermediary between the knob and the display housing. This guide part includes magnets arranged to create magnetic fields that generate attractive and repulsive forces on the knob's magnetic body, automatically guiding the knob to stable equilibrium positions corresponding to different functional areas without requiring physical contact or complex mechanical structures.
Solution Approach 2:
The patent replaces traditional mechanical guidance structures (such as physical guides, springs, or mechanical stops) with a magnetic field-based guidance system. The magnetic guide part uses alternately arranged magnets to create a magnetic potential landscape that guides the knob's movement and positioning, eliminating the need for complex mechanical components while maintaining positioning accuracy.
2Reliability
If magnets are arranged to provide strong guidance force, then the location recognition rate is improved, but the risk of malfunction due to excessive magnetic force may increase
Solution Approach 1:
The magnetic guide part uses magnets with different polarities arranged in an alternating pattern along the guide rail. This creates localized magnetic fields with different characteristics (attractive in some regions, repulsive in others) that work together to guide the knob to specific equilibrium positions. The magnetic force strength is optimized for each local region to ensure reliable positioning without excessive force.
Solution Approach 2:
The magnetic field configuration creates a self-correcting system where the knob naturally moves toward stable equilibrium positions determined by the magnetic potential landscape. The alternating attractive and repulsive forces provide continuous feedback that guides the knob to the correct functional areas, preventing malfunction by ensuring the knob settles in intended positions rather than random locations.
3Ease of operation
If the knob is allowed to move freely along the guide rail, then the ease of operation is improved, but the location precision may deteriorate
Solution Approach 1:
The system transitions from a static mechanical guidance structure to a dynamic magnetic field-based guidance system. The knob can move freely along the guide rail under user input, and the magnetic fields dynamically adjust to guide the knob toward stable equilibrium positions. This dynamic interaction maintains ease of operation while ensuring precise positioning through the magnetic potential landscape.
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
Secures a slimmed cockpit space and improves operational intuitiveness by allowing seamless integration of display and knob functions, preventing malfunctions through magnetic guidance and enhancing location recognition.
Implementation Method 1
a guide part that is spaced apart from an upper end of the guide rail, provides a guide path in the form of a zigzag-curved shape in a lengthwise direction
Implementation Method 2
a guide part in which magnets having different polarities are alternately arranged in a lengthwise direction of the guide rail to automatically guide a location of the knob
Data Source
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AI summary
A vehicle display device according to an embodiment of the disclosure includes a display that displays, as an image, functions for various pieces of vehicle operation information, a knob that is electrically interlocked with the display and selectively operates a corresponding function of the display according to left-right movement thereof, a guide rail that provides a movement path of the knob and divides a plurality of functional areas interlocked with the functions displayed on the display, and a guide part in which magnets having different polarities are alternately arranged in a lengthwise direction of the guide rail to automatically guide a location of the knob.