Vehicular HUD Switch Feedback for One-Way State Changes
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Solution Overview
Problem
Users may misunderstand the operation of one-way switches on a vehicle steering wheel when their images are displayed on a head-up display (HUD) due to potential misinterpretation of multiple presses.
Innovation Solution
A vehicular display control device that includes a processor to display an image of a switch causing a transition from a first state to a second state upon a single press and indicates the completion of this transition with a text string, preventing a return to the first state upon further pressing, and optionally removes the text after a predetermined duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If an image of a one-way switch is displayed on the HUD, then the user can see the switch layout, but the user may misunderstand the operation of the one-way switch when pressed twice or more
Solution Approach 1:
The system provides visual feedback by displaying a text string on the HUD that indicates the current state of the one-way switch after being pressed. This feedback mechanism clarifies that the switch has transitioned to its final state and will not return to the initial state upon further pressing, thereby preventing user misunderstanding while maintaining operational simplicity
Solution Approach 2:
The system performs preliminary action by displaying informative text before the user attempts further operation. By showing the switch state in advance, the user is prevented from making incorrect assumptions about the switch behavior, thus avoiding unnecessary corrective actions
Data Source
AI summary
A vehicular display control device that is configured to: display, at a display, an image of a switch that causes a transition from a first state to a second state in response to being pressed a first time and does not cause a return from the second state to the first state in response to being pressed a second time or more than a second time; and display, at the display, a text string indicating that the transition to the second state is complete in response to the switch having been pressed once in a state in which the image is displayed.