Rear Sensor Lane Change Control for Following Vehicle Detection

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Solution Overview

Problem

Drivers often fail to notice when a following vehicle is about to change lanes, leading to potential collisions during simultaneous lane changes, as they focus on the adjacent lane rather than the vehicle behind them.

Innovation Solution

A vehicle control system that uses rear monitoring sensors to determine if a following vehicle is changing lanes and alerts the driver or automatically adjusts the subject vehicle's lane change to avoid collisions, by integrating sensors and a vehicle control ECU to assess lane change intentions and notify the driver or adjust the vehicle's actions accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If drivers focus on the adjacent lane during lane change, then lane change efficiency is improved, but safety deteriorates due to failure to notice following vehicles

Engineering Contradiction:
Improvelane change efficiencyVSAvoidsafety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent introduces a rear monitoring sensor as an intermediary device that detects following vehicles and provides this information to the driver. This mediator allows the driver to maintain focus on the adjacent lane while still being aware of following vehicles through the sensor system, thus resolving the contradiction between lane change efficiency and safety

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system provides feedback to the driver about the presence of following vehicles through the rear monitoring sensor. This feedback mechanism enables the driver to make informed decisions about lane changes without needing to visually monitor the rear lane, maintaining both efficiency and safety

Inventive Principle:
Principle #23Feedback

2Reliability

If drivers monitor the vehicle behind them, then safety is improved, but lane change efficiency deteriorates due to divided attention

Engineering Contradiction:
ImprovesafetyVSAvoidlane change efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent replaces the mechanical/physical action of visual monitoring with an electronic sensor system. The rear monitoring sensor automatically detects and tracks following vehicles, substituting the need for driver visual attention and allowing the driver to focus on the lane change maneuver without sacrificing safety monitoring

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If automatic lane change control is implemented, then safety is improved by preventing simultaneous lane changes, but device complexity increases

Engineering Contradiction:
ImprovesafetyVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system enables the vehicle to monitor and assess lane change opportunities autonomously using the rear monitoring sensor and control unit. The vehicle performs self-service by automatically evaluating safety conditions and providing guidance, reducing the need for complex manual intervention systems while maintaining safety improvements

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20240409113A1Vehicle control device and vehicle control method
Publication Date: 2024.12.12 DENSO CORP
  • US20240409113A1 patent drawing
  • US20240409113A1 patent drawing
  • US20240409113A1 patent drawing

AI summary

By a vehicle control device or a vehicle control method, whether a following vehicle, which is a different vehicle in rear of a subject vehicle and traveling in a same lane as the subject vehicle, is about to perform lane change based on a signal from a rear monitoring sensor that outputs information regarding an object existing behind the subject vehicle, and notification that the following vehicle is about to perform the lane change or cancellation or postponement of the lane change is performed.