Longitudinal Control at Multi-Turn Junctions Using Adaptive Control Zones
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Solution Overview
Problem
Existing driver assistance systems for longitudinal control of vehicles fail to provide user-friendly and comfortable operation during lane changes, especially in complex junction areas with multiple turning lanes.
Innovation Solution
An assistance system for longitudinal control of vehicles that divides junction areas into control zones and adjusts control characteristics based on driver turn signal mode, lane change probability criteria, and navigation/swarm data to facilitate intuitive lane changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the assistance system uses a fixed desired distance for longitudinal control, then the control is simple to implement, but it becomes uncomfortable for drivers in complex junction areas with multiple turning lanes where lane changes are frequent
Solution Approach 1:
The system dynamically adjusts the desired distance parameter based on the detected traffic layout and lane change probability. Instead of using a fixed desired distance, the system adapts the longitudinal control parameters in real-time according to the complex junction environment, making the control comfortable for drivers while handling dynamic traffic conditions
2Ease of operation
If the assistance system divides junction areas into multiple control zones with different control characteristics, then the longitudinal control becomes more comfortable for drivers, but the system complexity increases
Solution Approach 1:
The junction area is segmented into multiple control zones based on the probability of lane changes. Each zone has specific control characteristics tailored to the local traffic conditions. This segmentation allows the system to provide appropriate longitudinal control for each zone while maintaining overall system manageability through automated zone detection and classification
3Measurement precision
If the system uses multiple criteria including turn signal mode, lane marking approach, and navigation data to assess lane change probability, then the accuracy of lane change prediction improves, but the difficulty of detecting and measuring increases
Solution Approach 1:
The system integrates multiple data sources (turn signal status, lane marking detection, navigation route information) into a unified lane change probability assessment mechanism. Each component serves multiple functions: turn signals indicate driver intent, lane marking detection provides positional context, and navigation data offers route guidance. This multi-functional integration improves assessment accuracy while avoiding redundant systems
Data Source
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AI summary
The invention relates to a method for operating an assistance system of an ego-vehicle (1) for longitudinal control of the ego-vehicle (1) by means of a speed-dependent desired distance to a vehicle (2) ahead. The invention provides that, in a roadway (13) with a junction area (5) forming a junction point (6), in which at least two turning lanes (3, 4) are routed in the same direction of travel in a junction area (20), the junction area (20) is subdivided into at least two adjacent control areas (7, 8, 9, 10) in which the longitudinal control of the ego-vehicle (1) is specified with different control characteristics.