Dynamic Blind Spot Warning Area for Two-Wheeler Lane Position

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Solution Overview

Problem

Current blind spot monitoring systems for two-wheelers, such as motorcycles, are ineffective in detecting vehicles in adjacent lanes due to fixed warning areas that do not adjust according to the vehicle's lateral position within its lane, leading to missing or false warnings, especially when the vehicle is not centered in the lane.

Innovation Solution

A method and control device that dynamically define and adjust blind spot warning areas based on lane information, using object detection systems like ultrasonic, radar, or camera systems, to provide accurate warnings by varying the width of the warning areas according to the vehicle's position within its lane and adjacent lane markings, ensuring reliable detection of vehicles in adjacent lanes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fixed warning areas are used for blind spot monitoring, then the system structure is simple, but the detection reliability deteriorates when the vehicle is not centered in the lane

Engineering Contradiction:
Improvedetection reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The warning area boundaries are made dynamic by adjusting them based on the detected lateral position of the two-wheeler within the lane. The control appliance continuously modifies the warning area to encompass the blind spot region corresponding to the current lateral position, ensuring reliable detection regardless of whether the vehicle is centered or offset in the lane.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the spatial parameters of the warning area based on the lateral position parameter. By detecting the lateral position and adjusting the warning area boundaries accordingly, the system adapts its monitoring zone to maintain optimal detection reliability under varying operational conditions.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the warning area is expanded to cover all possible blind spots, then detection coverage is improved, but false warnings increase

Engineering Contradiction:
Improvedetection coverageVSAvoidfalse warnings
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The warning area is locally adapted to the actual blind spot region based on the detected lateral position. Instead of using a fixed large-area warning zone that causes false alarms, the system dynamically defines the warning area boundaries to precisely match the blind spot region corresponding to the current lateral position, providing accurate coverage without excessive sensitivity.

Inventive Principle:
Principle #3Local quality

3Measurement precision

If lane information is used to dynamically adjust warning areas, then detection accuracy is improved, but device complexity increases

Engineering Contradiction:
Improvedetection accuracyVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary detection of lane markings and lateral position to establish the appropriate warning area boundaries before blind spot monitoring begins. By pre-detecting the lane structure and calculating the corresponding blind spot region, the system prepares the accurate warning area in advance, improving detection accuracy without requiring complex real-time adjustments during monitoring.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enhances the reliability of blind spot warnings by reducing false and missing alerts, improving safety by accurately detecting vehicles in adjacent lanes regardless of the two-wheeler's position within its lane, thereby preventing accidents during turns or lane changes.

Implementation Method 1

using object detection systems like ultrasonic, radar, or camera systems

Methodology Applied
Scientific EffectUltrasonic detection: Ultrasound

Implementation Method 2

using object detection systems like ultrasonic, radar, or camera systems

Methodology Applied
Scientific EffectRadar detection: Radar

Data Source

PatentEP3707043B1Method and control appliance for monitoring the blind spot on a two-wheeled vehicle
Publication Date: 2023.05.10 ROBERT BOSCH GMBH
  • EP3707043B1 patent drawingFigure 1
  • EP3707043B1 patent drawingFigure 2~3
  • EP3707043B1 patent drawingFigure 4~5

AI summary

The invention relates to a method for monitoring the blind spot on a two-wheeled vehicle (100), characterised in that, in a defining step, at least one warning region (128, 130) at least partially comprising a blind spot (118) is defined using traffic lane information (126) representing a position of the two-wheeled vehicle (100) on the traffic lane (120) thereof and/or a position of at least one adjacent traffic lane (122, 124), and that in an implementation step, a blind spot warning (134) is provided when object information (116) imaging a position of another vehicle (136) displays the other vehicle (136) inside the warning region (128, 130).