Traffic Light Driving Guidance With Preceding Vehicle Warnings

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Solution Overview

Problem

Conventional driving assistance systems do not provide adequate information to drivers when a preceding vehicle is present, which can lead to decreased traffic smoothing and safety, especially when approaching intersections with traffic lights.

Innovation Solution

A driving assistance apparatus that includes a display unit, distance measurement component, and electronic control unit to notify drivers of recommended driving actions based on traffic light information and inter-vehicle distance, displaying a warning when the distance becomes critical to prevent collisions with preceding vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the apparatus displays only recommended driving information without warning when a preceding vehicle is present, then the traffic flow smoothing is improved, but the safety is deteriorated due to potential collisions

Engineering Contradiction:
Improvetraffic flow smoothingVSAvoidsafety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The display unit presents different types of information based on the local condition of preceding vehicle presence. When a preceding vehicle is detected within a predetermined distance, warning information is added to the display alongside recommended driving information. This localized adaptation of information quality ensures safety warnings are provided only when necessary, maintaining traffic flow smoothing while preventing collisions.

Inventive Principle:
Principle #3Local quality

2Reliability

If the apparatus provides comprehensive information including warnings when a preceding vehicle is present, then the safety is improved, but the traffic flow smoothing is deteriorated due to excessive information

Engineering Contradiction:
ImprovesafetyVSAvoidtraffic flow smoothing
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The apparatus applies partial action by providing warning information only under specific conditions (when a preceding vehicle is within predetermined distance), rather than continuously. This conditional warning system provides sufficient safety information without excessive alerts that would distract the driver and disrupt traffic flow smoothing.

Inventive Principle:
Principle #16Partial or excessive action

3Productivity

If the apparatus displays recommended driving information for non-stop passage, then the traffic smoothing is improved, but the inter-vehicle distance becomes critical leading to collision risk

Engineering Contradiction:
Improvetraffic smoothingVSAvoidcollision risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The apparatus continuously monitors the inter-vehicle distance between the subject vehicle and preceding vehicle, and provides feedback through warning information when the distance becomes critical. This feedback mechanism allows the driver to adjust driving behavior in real-time, maintaining traffic smoothing benefits while preventing collision risks through timely distance alerts.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11862018B2Driving assistance apparatus
Publication Date: 2024.01.02 HONDA MOTOR CO LTD
  • US11862018B2 patent drawing
  • US11862018B2 patent drawing
  • US11862018B2 patent drawing

AI summary

A driving assistance apparatus including a display part, a distance measurement part measuring inter-vehicle distance from a subject vehicle to a preceding vehicle and a microprocessor. The microprocessor is configured to perform acquiring traffic light information including switching information on a traffic light and position information on the subject vehicle with respect to the traffic light, deriving a recommended driving for the driver based on the traffic light information and the position information, and controlling the display part so as to notify the driver of information on the recommended driving, the controlling including controls the display part so as to display a first image corresponding to the recommended driving when the inter-vehicle distance is larger than a predetermined value and to display a second image as warning information together with the first image when the inter-vehicle distance is equal to or smaller than the predetermined value.