Intersection Waiting Position Control to Avoid Crossroad Blocking

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Solution Overview

Problem

Existing vehicle control systems fail to prevent vehicles from hindering traffic on intersecting roads when they cannot turn right or travel straight due to traffic jams, leading to potential congestion and obstruction of crossing roads.

Innovation Solution

A vehicle control apparatus that includes an intersection information detection section, a traveling route detection section, a cross road detection section, an operation detection section, a waiting position setting section, and a determination section, which sets a waiting position before the overlapping region between the traveling route and the crossing road if the vehicle cannot perform the planned operation by the time the traffic light turns red, ensuring other vehicles can pass without obstruction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the vehicle waits at the intersection to perform the planned operation, then the vehicle can complete its turning or straight movement, but it hinders other vehicles from traveling on the crossing road

Engineering Contradiction:
Improveoperation completionVSAvoidtraffic obstruction
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The determination section performs preliminary assessment before the vehicle enters the intersection to predict whether the planned operation can be completed before the traffic light turns red. Based on this prediction, the system proactively decides whether to proceed or wait before the obstruction occurs, rather than reacting after the vehicle has already blocked the crossing road.

Inventive Principle:
Principle #10Preliminary action

2Object-generated harmful factors

If the vehicle stops before the intersection, then other vehicles can pass freely on the crossing road, but the vehicle cannot perform the planned operation in time

Engineering Contradiction:
Improvetraffic obstructionVSAvoidoperation completion
Core Design Contradiction:
Object-generated harmful factorsVSProductivity

Solution Approach 1:

The determination section continuously monitors traffic light status, vehicle speed, and distance to the intersection to dynamically assess whether the planned operation can be completed in time. This feedback mechanism allows the system to make real-time decisions about whether to maintain current speed, accelerate, or decelerate to either complete the operation or avoid obstruction.

Inventive Principle:
Principle #23Feedback

3Productivity

If the vehicle enters the intersection without determination, then the vehicle can perform the operation quickly, but it may cause congestion on intersecting roads when unable to complete the operation

Engineering Contradiction:
Improveoperation speedVSAvoidtraffic flow reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary determination assessment before the vehicle enters the intersection to predict whether the planned operation can be completed before the traffic light turns red. This advance prediction ensures that vehicles only enter the intersection when they can complete their operation without blocking the crossing road, thereby maintaining both operational efficiency and traffic flow reliability.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11834046B2Vehicle control apparatus
Publication Date: 2023.12.05 DENSO CORP
  • US11834046B2 patent drawing
  • US11834046B2 patent drawing
  • US11834046B2 patent drawing

AI summary

A vehicle control apparatus includes an intersection information detection section that detects information on an intersection, and includes a traveling route detection section that detects a traveling route of the vehicle and a cross road detection section that detects a cross road intersecting the traveling route, an operation detection section that detects a plan of operation of the vehicle at the intersection, a waiting position setting section that sets a waiting position where the vehicle is caused to wait at the intersection until the vehicle becomes possible to perform the operation, and a determination section that determines whether the vehicle can perform the operation by the time a traffic light on the traveling route at the intersection turns red. The waiting position setting section sets a position, where another vehicle is not hindered from traveling on the crossing road by the vehicle stopped at the waiting position, as the waiting position.