Driver Assistance System Lane Change Light Distribution
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Solution Overview
Problem
Current driver assistance systems do not effectively support drivers in determining whether a lane change can be performed safely, particularly in situations where there is a risk of collision with overtaking vehicles, especially at night or in low-light conditions.
Innovation Solution
A driver assistance system that uses light distribution patterns on the roadway to indicate to the driver when a lane change can be carried out safely, utilizing a combination of sensors and computing units to analyze vehicle data and environmental conditions, and project light symbols or patterns that guide the driver on necessary actions such as acceleration or deceleration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a driver assistance system provides comprehensive collision warning and lane change assistance, then driver safety is improved, but the system complexity increases
Solution Approach 1:
The driver assistance system is divided into separate functional modules: a detection unit for capturing environmental data, a computing unit for processing and evaluating data, and a control unit for generating light distributions. This modular segmentation allows each component to specialize in specific tasks, improving overall system reliability while making the complex system more manageable and maintainable
Solution Approach 2:
The patent introduces a computing unit as an intermediary between the detection unit and control unit. This intermediary processes environmental data, determines lane change intentions, evaluates safety conditions, and generates appropriate light distribution patterns. The computing unit mediates the flow of information and coordinates the interaction between different system components, enabling safe lane change assistance through structured data processing
2Ease of operation
If the system provides detailed visual information about safe lane changes, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The system projects light distributions onto the roadway surface, utilizing the two-dimensional road plane as an additional display dimension. This allows the driver to see directional arrows and safety indicators directly in the context of the driving environment, making lane change decisions more intuitive. The light distribution appears on the road surface rather than requiring separate display devices, enhancing ease of operation while avoiding additional complex display hardware
Solution Approach 2:
The system uses the existing roadway surface as a canvas to project visual information. Instead of creating complex physical display devices, the system creates optical copies of directional information (arrows, symbols) that are projected onto the road using light distribution. This copying approach provides detailed visual guidance to drivers while avoiding the complexity of building entirely new display hardware systems
Data Source
Figure 1A~1B
Figure 2~3A
Figure 3B~4A
AI summary
The invention relates to a method for operating a driver assistance system (6) for a first vehicle (7) on a first lane (12.1). Operating data and surroundings data of the first vehicle (7) are detected, and an intent to change lanes is determined for the first vehicle (7). Furthermore, a drive indication signal for a lane change to the second lane (12.2) is determined on the basis of the detected data. A control signal for a light distribution (11) with at least one light symbol (11.1, 11.2, 11.3, 11.4) is generated by the first vehicle (7) on the basis of the drive indication signal, and the control signal is used to signal to a driver of the first vehicle (7) that the lane change can be safely carried out. The light distribution (11) is displayed on the roadway (12) to the driver of the first vehicle (7). According to the invention, the light distribution (11) is displayed in two regions, wherein a first region is located on the first lane (12.1) and a second region is located on the second lane (12.2). The invention further relates to a driver assistance system (6).