Steering Wheel Touchscreen Mode Switching for Driver Distraction
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Solution Overview
Problem
Existing motor vehicle operating arrangements on the steering wheel are limited in functionality and customizable options, leading to driver distraction and increased accident risk due to the increasing number of controls and lack of personalization.
Innovation Solution
A touch-sensitive screen on the steering wheel that operates in two modes: a first mode where it functions as a touchpad to control a pointer on a display device, and a second mode where buttons are displayed for direct function control, allowing for expanded functionality and safer operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate controls are added to the steering wheel to accommodate increasing vehicle functions, then the range of controllable functions is improved, but driver distraction increases and safety deteriorates
Solution Approach 1:
Multiple separate controls are merged into a single integrated operating element with a touch-sensitive screen. This consolidation allows multiple vehicle functions to be controlled through one interface rather than requiring multiple separate controls, thereby expanding functional range while reducing the number of physical controls the driver must manage.
Solution Approach 2:
The operating element is designed as a universal control interface that can perform multiple functions through a single device. The touch-sensitive screen displays context-dependent icons and options, allowing one physical location to control various vehicle systems (audio, climate, communication, etc.) without requiring dedicated controls for each function.
2Adaptability or versatility
If the number of controls on the steering wheel is increased to provide more vehicle functions, then functional versatility is improved, but the complexity of the operating arrangement increases
Solution Approach 1:
Multiple controls are merged into a single operating element with a touch-sensitive screen that can display and control multiple vehicle functions. This reduces the physical number of controls while maintaining or expanding functional versatility through software-based interface management.
Solution Approach 2:
The interface of the operating element is dynamic and context-dependent. The touch-sensitive screen adapts its display based on the current vehicle state, selected function, or operational mode, showing only relevant icons and options. This dynamic adaptation reduces perceived complexity by presenting information in a context-relevant manner rather than displaying all possible functions simultaneously.
3Device complexity
If fixed-function controls are used on the steering wheel, then device simplicity is maintained, but the ability to personalize and adapt functions is limited
Solution Approach 1:
The operating element features a dynamic interface that can be customized and adapted. The touch-sensitive screen allows for personalized configurations where users can select and position frequently used functions, and the interface adapts based on driving context, vehicle state, and user preferences, providing both simplicity and personalization.
Solution Approach 2:
The operating element allows changes in operational parameters such as displayed icons, function assignments, and interface layout. Users can modify these parameters to personalize the control experience while maintaining the simple physical form factor of a single steering wheel integrated element.
4Adaptability or versatility
If a touch-sensitive screen with multiple functions is implemented on the steering wheel, then functional versatility is improved, but the difficulty of detecting and measuring user input increases
Solution Approach 1:
The touch-sensitive screen provides visual feedback by displaying icons, highlighting selected options, and showing operational states. This feedback mechanism helps users understand which function is currently active or selected, reducing the difficulty of input detection by providing clear visual confirmation of user actions and system state.
Solution Approach 2:
The touch-sensitive screen utilizes color changes and visual variations to indicate different functional states, selected options, and operational modes. These visual changes help users easily detect and measure their input by providing immediate visual confirmation of touch location and function selection.
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
The solution enhances the range of functions available on the steering wheel, reducing driver distraction by enabling intuitive control of multiple vehicle and mobile device functions without removing hands from the wheel, thereby improving traffic safety.
Implementation Method 1
Such sensors can be designed, for example, as capacitive or resistive sensors
Implementation Method 2
Such sensors can be designed, for example, as capacitive or resistive sensors
Implementation Method 3
In a first operating mode of the operating element, a pointer displayed on a display device of the device is controlled by the control device. In a second operating mode of the operating element, at least one button is displayed on the operating element
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a method for operating an operating arrangement (2) for a motor vehicle (1), in which an operating element (4, 4') which is arranged on a steering wheel (5) of the motor vehicle (1) and has a touch-sensitive screen is used to detect touching of the operating element (4, 4') with at least one finger (9) as an operating action and a control device (3) is used to control an apparatus (8) on the basis of the detected operating action, wherein, in a first operating mode of the operating element (4, 4'), the control device (3) is used to control a pointer (11) displayed on a display device (10) of the apparatus (8) and, in a second operating mode of the operating element (4, 4'), at least one button (15) is displayed on the operating element (4, 4') and touching of the button (15) is detected as the operating action.