Intelligent Driving Aid with Wireless Green-Light Speed Guidance

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

High fuel consumption and carbon emissions due to frequent acceleration and deceleration at traffic lights, along with a significant number of red light violations leading to accidents and injuries.

Innovation Solution

An intelligent driving aid system that informs drivers if they can reach the next green light in time, adjusting their driving patterns to save fuel and reduce emissions, using roadside signs that communicate with traffic lights wirelessly to provide real-time traffic light status and optimal speed recommendations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If drivers maintain steady speed to reduce fuel consumption, then fuel efficiency improves, but ability to respond to changing traffic conditions deteriorates

Engineering Contradiction:

Improvefuel consumptionVSAvoiddriving adaptability

Core Design Contradiction:

Use of energy by moving objectVSEase of operation

Solution Approach 1:

The system provides real-time feedback to drivers about their ability to reach the next green light, enabling them to adjust speed proactively. The roadside sign displays information about distance to intersection, time to green light, and recommended speed adjustments, creating a closed-loop feedback system that balances fuel efficiency with driving adaptability.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary calculations and communications with the driver before the intersection is reached. By providing advance notice of green light timing and recommended speed adjustments, the system enables drivers to make optimal speed changes earlier rather than making reactive adjustments at the last moment.

Inventive Principle:

Principle #10Preliminary action

2Loss of time

If drivers accelerate frequently to reach green lights, then arrival time at intersections improves, but fuel consumption and emissions increase

Engineering Contradiction:

Improvetime to reach intersectionVSAvoidfuel consumption

Core Design Contradiction:

Loss of timeVSUse of energy by moving object

Solution Approach 1:

The system calculates optimal speed adjustments in advance and communicates them to drivers before they reach the intersection. This allows drivers to make smooth, planned acceleration or deceleration adjustments rather than frequent, reactive speed changes, reducing fuel consumption while still enabling timely arrival at green lights.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the recommended speed parameter based on real-time conditions including distance to intersection, green light timing, and current vehicle speed. By optimizing this key parameter, the system enables drivers to achieve the best balance between arrival time and fuel consumption for each specific situation.

Inventive Principle:

Principle #35Parameter changes

3Loss of time

If drivers run red lights to maintain speed, then travel time is reduced, but safety and accident risk deteriorate

Engineering Contradiction:

Improvetravel timeVSAvoidsafety

Core Design Contradiction:

Loss of timeVSReliability

Solution Approach 1:

The system provides continuous feedback to drivers about their proximity to red lights and recommended speed adjustments to avoid them. By maintaining an ongoing communication channel between the roadside infrastructure and driver, the system enables proactive speed adjustments that prevent red light running while preserving travel time efficiency.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system takes preliminary action to prevent red light violations by alerting drivers in advance and recommending speed adjustments. Rather than allowing drivers to approach red lights and then react, the system proactively counteracts the tendency to run red lights by providing timely information about green light timing and optimal speed adjustments.

Inventive Principle:

Principle #9Preliminary anti-action

4Loss of time

If roadside signs are placed close to intersections, then information timeliness improves, but driver reaction time deteriorates

Engineering Contradiction:

Improveinformation delayVSAvoiddriver reaction time

Core Design Contradiction:

Loss of timeVSDuration of action of moving object

Solution Approach 1:

The system resolves the spatial-temporal conflict by operating in multiple dimensions: it places signs at multiple distances from intersections (creating a spatial gradient of information), and provides progressively updated information as drivers approach (creating a temporal sequence). This multi-dimensional approach ensures drivers receive timely information while maintaining adequate reaction time.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20250232669A1Driving aid system to improve safety, save fuel, and reduce emissions

Publication Date: 2025.07.17 WANG TIANXIN

AI summary

The current application discloses an intelligent driving aid system comprising a roadside sign, and method to improve energy efficiency and safety by informing drivers of whether they can reach the green light ahead in time. The roadside sign is placed away from the traffic lights and communicates with the traffic lights ahead wirelessly.