Touch Interface Haptic Feedback for Eyes-Free In-Vehicle Adjustment
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Solution Overview
Problem
In-vehicle devices require improvement in allowing touch operations without visual attention, as users struggle to determine the layout of icons and confirm touch operations without looking at the screen, leading to potential distraction and difficulty in making fine adjustments.
Innovation Solution
An electronic device with a touch-sensitive interface that uses vibrations to indicate valid touch regions, allowing users to adjust settings like temperature, air flow, and volume by sliding or pressing, without needing to glance at the screen, using a control unit to determine the amount of adjustment based on touch operation data stored in a storage unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user performs fine adjustment touch operations with a fingertip without looking at the screen, then the setting can be adjusted without visual attention, but the user's attention may be distracted and the operation becomes difficult to perform accurately
Solution Approach 1:
The patent applies mechanical vibration through a vibration notification device that generates tactile feedback when a touch operation is detected. This vibration allows the user to confirm the touch operation through tactile sensation rather than visual confirmation, enabling accurate fine adjustments without looking at the screen and preventing driver distraction while maintaining operational precision
2Adaptability or versatility
If the user must find and press a volume control button on the screen, then the control function is available, but the user cannot perform the operation quickly without looking at the screen
Solution Approach 1:
The patent implements feedback through vibration notification that immediately responds to touch operations. This tactile feedback allows users to perform operations without visually locating controls, significantly reducing the time required to access and operate control functions while maintaining full control availability
Solution Approach 2:
The system provides self-service through tactile feedback that guides the user's touch operations without requiring visual attention. The vibration notification automatically confirms touch detection and operation execution, enabling users to control functions quickly and independently without needing to visually search for or confirm control locations
Data Source
AI summary
An electronic device includes a storage unit storing adjustment information whereby the amount of change in a predetermined direction, when an adjustment portion was moved to adjust a setting for a predetermined system by the user performing a touch operation, has been associated with an amount of adjustment for adjusting the setting for the predetermined system. A control unit determines whether or not the user's touch operation has passed through a region in a predetermined amount of time, and calculates the amount of change in the predetermined direction based on the touch operation when it has been determined that the touch operation has passed through the region within the predetermined amount of time, determines the amount of adjustment corresponding to the calculated amount of change based on the adjustment information, and issues an instruction to the predetermined system to set a setting value based on the determined amount of adjustment.