Vehicle Risk Index Control for Sidewalk-to-Roadway Entry
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Solution Overview
Problem
Existing vehicle control systems fail to accurately assess and respond to the risk of traffic participants, particularly pedestrians and bicycles, when entering roadways from sidewalks, leading to inadequate vehicle control.
Innovation Solution
A vehicle control method and device that recognizes the vicinity of a vehicle, sets a risk index based on the likelihood of a traffic participant entering the roadway, and adjusts vehicle speed, steering, and output information accordingly, taking into account the structure of the boundary between the sidewalk and roadway, as well as the participant's orientation and behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a vehicle control system sets a warning region for another vehicle stopped on one side of a road, then the system can provide basic safety warning, but it cannot accurately assess the risk when a pedestrian is present on the other side of the road
Solution Approach 1:
The patent applies local quality by setting different risk indices for different regions around the vehicle. Specifically, it creates a first warning region for another vehicle and a second warning region that is wider when a pedestrian is detected on the other side of the road. This regional differentiation allows the system to provide customized safety zones based on local traffic conditions, improving both measurement precision and adaptability.
Solution Approach 2:
The patent implements dynamics by making the warning region adaptable and changeable based on real-time detection of traffic participants. The system dynamically adjusts the width of the second warning region depending on whether a pedestrian is detected on the other side of the road, allowing the safety zone to expand or contract according to the current traffic situation rather than using a fixed region.
2Ease of operation
If a vehicle control system uses a fixed warning region, then the system structure is simple, but it cannot appropriately control the vehicle according to different traffic participant situations
Solution Approach 1:
The patent applies preliminary action by pre-defining multiple warning region templates (first warning region and second warning region) that can be selectively applied based on detected conditions. The system prepares these different region configurations in advance and switches between them according to whether a pedestrian is detected, enabling appropriate vehicle control without requiring complex real-time calculations.
Solution Approach 2:
The patent implements parameter changes by modifying the risk index and warning region width based on the presence of traffic participants. When a pedestrian is detected on the other side of the road, the system changes the parameter of the second warning region to be wider, and adjusts the risk index accordingly. This parameter-based approach allows flexible vehicle control while maintaining a relatively simple system structure.
Data Source
AI summary
A vehicle control method includes recognizing a vicinity of a vehicle, setting a risk index for a traffic participant, and controlling a vehicle-mounted instrument of the vehicle based on the risk index which is set by the setter, and setting a risk index for a position at which the traffic participant will be present in the future based on ease of entry of the traffic participant from a sidewalk to a roadway adjacent to the sidewalk in a region that the traffic participant traveling on the sidewalk will enter in the future, and increasing a risk index to be set on the roadway side as there is a greater tendency for the traffic participant to enter the roadway.