Steering Wheel Light Bar for Peripheral Warning Signals
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Solution Overview
Problem
Conventional driver assistance systems divert the driver's attention from navigating the vehicle, as they require visual and auditory focus, necessitating a solution that utilizes peripheral vision and allows both hands to remain on the wheel.
Innovation Solution
A steering wheel with an integrated light element that provides indication and warning signals, using LEDs or other light-emitting technologies, positioned to minimize distraction and maintain the driver's focus on the road, with features like adjustable intensity, color, and pattern to convey critical information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional instrument panel and center-stack displays are used to provide driver assistance information, then the driver receives visual warnings and information, but the driver's attention is drawn away from navigating the vehicle
Solution Approach 1:
The patent transitions the display dimension from conventional 2D instrument panels or center-stack screens to a 3D spatial arrangement using multiple light bars positioned at different locations around the steering wheel (top, bottom, left, right). This spatial distribution allows information to be delivered in the driver's peripheral vision field without requiring attention shift, as the light bars are arranged to be visible within the natural field of view while maintaining hands-on-wheel operation.
Solution Approach 2:
The patent introduces light bars as intermediary visual indicators that mediate between the driver assistance system and the driver. These light bars serve as intermediate carriers of information, translating complex warnings into simple visual signals (different colors and patterns) that can be perceived peripherally without requiring the driver to divert attention from the road.
2Ease of operation
If heads up displays are used to provide driver assistance information, then the driver receives information without taking hands off the wheel, but the display can be jarring and distracting to the driver
Solution Approach 1:
The patent applies local quality by positioning light bars at specific locations around the steering wheel (top, bottom, left, right) rather than using a centralized display. Each light bar provides localized visual information in different sectors of the driver's peripheral vision, allowing information delivery without creating a concentrated distracting effect. The distributed arrangement ensures no single visual element dominates or jars the driver's attention.
3Reliability
If visual warnings are provided to improve driver reaction time, then critical information is delivered to the driver, but the driver must divert attention from the road
Solution Approach 1:
The patent utilizes the spatial dimension of peripheral vision to deliver critical warning information without requiring attention diversion. By arranging light bars around the steering wheel and using different colors and illumination patterns, the system conveys multiple types of warnings (collision risk, lane departure, blind spot detection) in the driver's peripheral field of view, enabling rapid reaction while maintaining focus on the road.
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
Enhances driver reaction time by providing critical information without diverting attention from the road, allowing hands to remain on the wheel and maintaining focus through peripheral vision, thus improving safety in critical driving situations.
Implementation Method 1
A steering wheel with an integrated light element that provides indication and warning signals, using LEDs or other light-emitting technologies
Data Source
AI summary
Various implementation of a light bar warning system for a steering wheel of a vehicle include a liquid crystal display (LCD), a light guide, and at least one light source disposed adjacent the light guide. The LCD and light guide having arcuate shaped surfaces that follow along a portion of the steering wheel rim. Light emitted from the light source is transmitted through the light guide and out of its outer surface into an inner surface of the LCD that is disposed adjacent the light guide. The light is emitted through portions of the LCD that are activated for illumination by an LCD driver. The LCD may provide various types of warnings to the operator, including blind spot warnings, forward collision/proximity warnings, and lane departure warnings, for example.