Automated Driving Pull-Over Control for Directional Obstacle Stops
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Automated driving vehicles often stop unnecessarily when sensors detect objects outside their intended travel direction while pulling over to a sidewalk, leading to unnecessary stops and potential collisions.
Innovation Solution
An automated driving vehicle system that uses sensors to detect objects in specific areas around the vehicle and controls the vehicle's speed and stopping based on the presence and direction of obstacles, preventing unnecessary stops by only stopping when objects are in the travel direction and reducing speed when obstacles are in non-travel areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the automated driving vehicle stops immediately when any object is detected by the sensor, then the safety is improved, but the vehicle stops unnecessarily when objects are detected in directions other than the traveling direction
Solution Approach 1:
The patent applies local quality by dividing the detection space into different regions (front area, side area, rear area) and applying different stop control strategies to each region. Objects in the front area trigger immediate stopping, while objects in side and rear areas do not trigger stopping during sidewalk pulling-over, thus locally optimizing the response based on spatial position.
Solution Approach 2:
The patent implements dynamics by making the stop control decision variable based on the vehicle's operational state. When the vehicle is pulling over to the sidewalk, the control logic dynamically adjusts to exclude side and rear areas from triggering stops, whereas in normal driving conditions, all detected objects would trigger stopping.
2Reliability
If the vehicle stops when objects are detected in all surrounding areas, then the collision risk is reduced, but the operational efficiency deteriorates due to frequent unnecessary stops
Solution Approach 1:
The patent applies local quality by dividing the detection space into different regions (front area, side area, rear area) and applying different stop control strategies to each region. Objects in the front area trigger immediate stopping, while objects in side and rear areas do not trigger stopping during sidewalk pulling-over, thus locally optimizing the response based on spatial position.
Solution Approach 2:
The patent implements dynamics by making the stop control decision variable based on the vehicle's operational state. When the vehicle is pulling over to the sidewalk, the control logic dynamically adjusts to exclude side and rear areas from triggering stops, whereas in normal driving conditions, all detected objects would trigger stopping.
3Reliability
If the vehicle uses comprehensive object detection in all directions, then the safety is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the detection space into multiple distinct regions (front area within predetermined distance, side area within predetermined distance, rear area within predetermined distance). This spatial segmentation allows the control system to process detection results differently for each region, reducing the complexity of decision-making compared to treating all detected objects uniformly.
Solution Approach 2:
The patent applies local quality by dividing the detection space into different regions (front area, side area, rear area) and applying different stop control strategies to each region. Objects in the front area trigger immediate stopping, while objects in side and rear areas do not trigger stopping during sidewalk pulling-over, thus locally optimizing the response based on spatial position.
Data Source
AI summary
During a period from when an automated driving vehicle starts pulling over to a sidewalk side until the vehicle pulls over completely thereto, an operation control section causes the vehicle to immediately stop when an object that can be an obstacle exists in at least one of a middle front area, a sidewalk-side front area, and a sidewalk-side side area that are areas each within a predetermined distance at a middle front, at a sidewalk-side front, and on a sidewalk-side side of the vehicle, respectively. During the period, the operation control section does not cause the vehicle to stop when the object does not exist in any of the middle front area, the sidewalk-side front area, and the sidewalk-side side area, even when the object exists in an area surrounding the vehicle other than the middle front area, the sidewalk-side front area, and the sidewalk-side side area.