Vehicle Acceleration Display for Obscured Traffic
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Solution Overview
Problem
Drivers of small and low vehicles face difficulties in anticipating the traffic situation due to restricted vision and field of view, especially in dense traffic conditions, as they can only see as far as the vehicle directly ahead, making it challenging to drive with foresight.
Innovation Solution
A method and device that detect and display the acceleration of vehicles ahead, generating graphical objects on a display area to indicate braking processes, allowing drivers to anticipate and prepare for potential collisions by visualizing the braking status of vehicles even if they are obscured, using a combination of sensors and augmented reality displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If drivers rely on direct visual observation of vehicles ahead, then they can see the current traffic situation, but their vision is restricted to only the vehicle directly ahead, making it impossible to see further vehicles in dense traffic
Solution Approach 1:
The patent uses sensors (radar, lidar, cameras) as intermediaries to detect vehicles ahead that are not visible to the driver. These sensors act as mediators between the driver and the traffic situation, capturing data about obscured vehicles and transmitting this information to the display system, thereby overcoming the physical limitation of the driver's field of view
Solution Approach 2:
The patent creates visual copies or representations of vehicles ahead through graphical objects displayed on the display area. When a vehicle is detected by sensors but not visible to the driver, the system generates a graphical representation (icon, symbol, or visual indicator) that copies the essential information about that vehicle's presence, position, and braking status, allowing the driver to perceive vehicles beyond direct line of sight
2Reliability
If driver assistance systems actively intervene and brake the vehicle, then collisions can be avoided, but the driver loses the ability to drive with foresight and anticipation
Solution Approach 1:
The patent displays information about vehicles ahead (particularly braking vehicles) in advance before the following vehicle needs to react. By showing graphical objects indicating the presence and braking status of vehicles several positions ahead, the system enables the driver to take preliminary actions (such as preparing to brake) before the situation becomes critical, maintaining driver control while improving safety
Solution Approach 2:
The patent provides continuous feedback to the driver about the traffic situation ahead through the display area. The system monitors vehicles ahead, detects their braking status through acceleration data, and immediately feeds this information back to the driver via graphical representations. This real-time feedback loop enables the driver to make informed decisions and maintain anticipatory driving without relying on automated braking intervention
3Loss of information
If all vehicles ahead are displayed with their acceleration data, then complete information is provided, but the display becomes cluttered and difficult to interpret
Solution Approach 1:
The patent applies different display characteristics to different vehicles based on their relevance to the driver. Vehicles with negative acceleration (braking) are highlighted with specific graphical objects, icons, or visual indicators that make them stand out. Normal vehicles are displayed with simpler representations. This local differentiation allows the display to convey complete information while maintaining clarity by emphasizing only the critical elements
Solution Approach 2:
The patent selectively displays detailed information for a subset of vehicles (those with negative acceleration) rather than treating all vehicles equally. By applying partial action - showing enhanced graphical representations only for braking vehicles - the system provides sufficient information for safe driving without overwhelming the driver with unnecessary details about every vehicle ahead
Data Source
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AI summary
The invention relates to a method for displaying braking events of preceding vehicles (F1 - F8) in a vehicle (7). In the method according to the invention, the preceding vehicles (F1 - F8) are detected. Data on the acceleration of the preceding vehicles (F1 - F8) are recorded. Furthermore, from the acceleration data, the first preceding vehicles (F6 - F8) with a first acceleration are determined, wherein the first acceleration is a negative acceleration whose magnitude is greater than or equal to a defined threshold value. In addition, first graphic objects (8.1 - 8.3) are generated on a display surface (3.1, 6), wherein each first preceding vehicle (F6 - F8) is assigned a first graphic object (8.1 - 8.3) which indicates that the first preceding vehicle (F6 - F8) assigned to the first graphic object (8.1 - 8.3) exhibits the first acceleration.The invention further relates to a device (1) for displaying accelerations of vehicles ahead (F1 - F8) in a vehicle (7).