Adaptive Warning Region for Stopped Vehicle Run-Out Detection
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Solution Overview
Problem
Existing automated driving systems fail to consider scenarios where a person may run out from the vicinity of a stopped vehicle onto the road, particularly when a walker is present on the opposite side, leading to potential collisions.
Innovation Solution
A processing apparatus that acquires peripheral information to determine if a stopped vehicle and a walker exist on opposite sides of the road, setting a wider warning region for the stopped vehicle to account for the risk of a person running out from its blind spot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standard warning region is set for stopped vehicles, then the system maintains simple detection logic, but it fails to account for run-out risks when walkers are present on the opposite side
Solution Approach 1:
The patent applies local quality by setting different warning region widths based on local conditions: when a walker is detected on the opposite side of the road, a wider second warning region is set for stopped vehicles to account for run-out risks, while standard warning regions are used when no walker is present. This localized adaptation of warning region parameters resolves the contradiction between maintaining simple detection logic and achieving reliable collision avoidance.
Solution Approach 2:
The patent implements preliminary action by proactively detecting the presence of walkers on the opposite side of the road and pre-expanding the warning region for stopped vehicles before any potential run-out event occurs. This advance preparation ensures that the automated driving system is already positioned to safely respond to run-out scenarios, improving reliability without requiring complex real-time reaction mechanisms.
2Reliability
If the warning region is expanded to cover potential run-out scenarios, then collision risk is reduced, but the effective driving space is narrowed
Solution Approach 1:
The patent applies dynamics by making the warning region width adaptive rather than fixed. The system dynamically adjusts the warning region width based on the detected presence or absence of walkers on the opposite side of the road. When walkers are present, the warning region expands to the wider second width; when absent, it reverts to the standard first width. This dynamic adjustment resolves the contradiction by providing enhanced safety only when necessary, thereby preserving effective driving space during normal conditions.
3Reliability
If the system detects and responds to all potential run-out scenarios, then safety is improved, but the processing complexity and response time increase
Solution Approach 1:
The patent applies segmentation by dividing the detection and processing logic into distinct modules: a walker detection unit that specifically identifies walkers on the opposite side of the road, a determination unit that decides whether to expand the warning region based on walker presence, and a warning region setting unit that implements the appropriate width. This segmented approach resolves the contradiction by handling run-out scenario detection as a separate, focused task rather than requiring the entire system to process all possible scenarios simultaneously, thereby improving detection accuracy without proportionally increasing overall system complexity.
Data Source
AI summary
A processing apparatus comprises a first determination unit configured to determine, based on peripheral information of a self-vehicle, whether another vehicle that is stopped exists on one side of a road in a width direction; a second determination unit configured to determine, based on the peripheral information, whether a walker exists on the other side of the road in the width direction; and a setting unit configured to, if the other vehicle exists on the one side of the road in the width direction, and the walker exists on the other side of the road in the width direction, set, for the other vehicle, a second warning region wider than a first warning region in a case in which the other vehicle exists, and the walker does not exist.