Lane Marking Alignment Control Under Speed and Obstacle Constraints

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Solution Overview

Problem

Existing automated driving technologies inadequately address the limitations and safety considerations when relying solely on information from a single marking line for mobile object control, particularly in complex traffic scenarios involving obstacles.

Innovation Solution

A mobile object control system that utilizes both detected marking lines from a detection device and map information to adjust and synchronize the position of these lines, incorporating speed and obstacle detection to ensure safe and appropriate moving control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the adjuster moves and adjusts the position of marking lines to match recognition states, then the positioning accuracy and adaptability of the mobile object are improved, but the moving speed of the marking line adjustment may cause instability or safety issues when obstacles are present

Engineering Contradiction:
Improvepositioning accuracy of marking lineVSAvoidsafety of moving control
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The speed determiner continuously monitors the moving speed of the adjusted marking line and provides feedback to the moving controller. When the moving speed exceeds the predetermined threshold or an obstacle is detected, the system adjusts its control strategy accordingly, creating a closed-loop feedback mechanism that ensures safety while maintaining positioning accuracy

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts the marking line position based on real-time recognition states and moving speed conditions. The adjuster modifies the marking line position adaptively, and the moving controller changes its behavior dynamically based on obstacle presence and speed thresholds, making the system both accurate and safe

Inventive Principle:
Principle #15Dynamics

2Reliability

If the moving controller limits moving control when high moving speed is detected with obstacles present, then safety is improved, but the productivity and responsiveness of the mobile object are reduced

Engineering Contradiction:
Improvesafety of moving controlVSAvoidresponsiveness of moving control
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system applies different control qualities to different situations: when obstacles are present at high moving speed, limitation control is applied locally to that specific condition, while other conditions maintain normal responsiveness. This localized control strategy ensures safety criticality is addressed without broadly reducing system productivity

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The moving controller changes its operational parameters based on the detection results. When the speed determiner detects high moving speed with obstacles, the controller modifies its parameters to limit control, and returns to normal parameters when conditions are safe, allowing dynamic adjustment between safety and productivity modes

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250304054A1Mobile object control device, mobile object control method, and storage medium
Publication Date: 2025.10.02 HONDA MOTOR CO LTD
  • US20250304054A1 patent drawing
  • US20250304054A1 patent drawing
  • US20250304054A1 patent drawing

AI summary

A mobile object control device includes: a moving controller configured to perform moving control of a mobile object on the basis of a first marking line and a second marking line, which is recognized from a detection device or map information. The moving controller performs at least one of limitation of the moving control and notification associated with the limitation when the moving speed when moving the marking line so as to align the position of the first marking line or the second marking line is equal to or higher than a predetermined speed and an obstacle is present in an extending direction of the first marking line. The moving controller continues to perform the moving control when it is determined that the moving speed is equal to or greater than the predetermined speed and an obstacle is not present in the extending direction of the first marking line.