Curved Touch Input Apparatus for Vehicle Gesture Recognition
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Solution Overview
Problem
Existing touch input apparatuses for vehicles lack intuitive and error-reduced designs, particularly for gesture recognition and operation, often requiring users to look away from their path while inputting commands, which can lead to decreased accuracy and increased error rates.
Innovation Solution
A touch input apparatus with a protrusion part and recess part, featuring a touch part with a concave curved surface, allowing users to input gestures and commands without looking directly at the interface, utilizing tactile recognition and ergonomic design to enhance accuracy and reduce errors, and integrated with a control part to convert gestures into operation signals for display and navigation systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional flat touch input interface is used, then the device structure is simple, but the user must look away from the road to input commands accurately
Solution Approach 1:
The touch input apparatus employs a protrusion part with a curved top surface that rises from the mounting surface. This curved geometry enables users to perform rolling gestures by rotating their fingers along the curved surface, providing tactile feedback and intuitive gesture control without requiring visual attention, thereby improving both accuracy and ease of operation
2Measurement precision
If a protrusion part with curved surface is added to the touch input apparatus, then gesture recognition accuracy improves, but the device complexity increases
Solution Approach 1:
The protrusion part features a curved top surface that can be formed through standard molding processes. The curvature is designed to match natural finger rolling motions, enabling intuitive gesture input while maintaining manufacturing feasibility. The curved geometry provides tactile feedback without requiring complex mechanical components
Solution Approach 2:
The protrusion part with curved surface serves multiple functions: it provides tactile feedback for gesture recognition, enables rolling gestures for directional input, and maintains aesthetic design. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity
3Adaptability or versatility
If the edge part is designed to receive different signals based on contact position, then the input versatility improves, but the difficulty of detecting and measuring touch position increases
Solution Approach 1:
The touch part is divided into multiple regions including the protrusion part, edge part, and inner surface, each capable of detecting different gesture types. The curved surface of the protrusion part provides distinct tactile characteristics that help the sensing system differentiate between rolling, sliding, and pressing gestures based on local contact properties
Data Source
AI summary
A touch input apparatus installed on a mounting surface includes an outer surface that rises from the mounting surface; an edge part provided at a top of the outer surface; and an inner surface that declines from the edge part, wherein the edge part is provided to receive a touch signal of a user.