List Element Selection via Dual Display Preselection
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Solution Overview
Problem
Modern motor vehicles face challenges in allowing drivers to select list elements from long lists without causing significant distraction or increasing the risk of operating errors, particularly when using conventional methods that require precise interaction with limited display units.
Innovation Solution
A method utilizing two visual display units and operating devices that allow upward/downward commands and selection commands, enabling the driver to preselect multiple list elements on one unit and then focus on a sublist on another, minimizing distraction and reducing errors by allowing incremental navigation and precise selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional list selection methods are used on a single display unit, then the interaction is simple, but the driver experiences significant distraction and increased risk of operating errors
Solution Approach 1:
The patent divides the list selection process into two distinct phases: a first selection phase where a preselection region highlights multiple list elements, and a second selection phase where a precise selection region identifies the final target. This segmentation allows the driver to first broadly identify the desired section of a long list, then precisely select the specific element, thereby reducing errors while managing complexity through structured interaction steps.
2Ease of operation
If the driver interacts with long lists on a limited display unit, then all list elements can be accessed, but the driver's attention is significantly diverted from the road
Solution Approach 1:
The display area is segmented into a first display unit for the main list overview and a second display unit for the preselection region. This spatial segmentation allows the driver to quickly scan the main list on the first display while the preselection region on the second display provides immediate visual feedback about the current selection area, reducing the time needed to locate and select items without excessive distraction.
Solution Approach 2:
The system performs preliminary action by automatically generating and displaying a preselection region that highlights multiple list elements before the driver makes a final selection. This preliminary highlighting reduces the driver's cognitive load and search time, allowing faster selection while maintaining safety by reducing the need for prolonged focus on the display.
3Productivity
If a preselection region highlighting multiple list elements is used, then navigation through long lists becomes easier, but the selection process requires additional steps
Solution Approach 1:
The selection process is segmented into two functional regions: a preselection region that can highlight multiple elements for broad navigation, and a precise selection region for final element selection. This segmentation improves productivity by allowing efficient scanning of long lists through the preselection region, while the additional step of transitioning to precise selection ensures accurate target acquisition, netting faster overall selection times.
Solution Approach 2:
The system dynamically adjusts the selection interface based on the interaction phase. During the navigation phase, the preselection region highlights multiple elements to facilitate quick scanning. When the driver indicates readiness for final selection, the system transitions to the precise selection phase, dynamically changing the interaction mode to match the driver's needs at each moment, thereby improving efficiency without unnecessarily complicating the process.
Data Source
AI summary
A method for selecting a list element from a list displayable on a motor vehicle display unit. The list is displayed on a first display unit. First upwards/downwards commands are received upon actuation of an operating element by a user and, corresponding to the first upwards/downwards commands received, a first preselection region, which highlights a plurality of list elements, is moved upwards/downwards within the displayed list. A first selection command is received upon an actuation of the operating element and then a sublist, which exclusively comprises the list elements highlighted by the first preselection region is displayed on a second display unit. Second upwards/downwards commands are received and, corresponding thereto, a second preselection region, which highlights a single list element in the sublist, is moved upwards/downwards within the displayed sublist. A second selection command selects the list element highlighted by the second preselection region.