U-Shaped Guide Gutter for High-Speed Automated Lane Keeping

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Solution Overview

Problem

Current autonomous vehicle technologies face challenges in maintaining reliability and safety at high speeds due to reliance on contactless systems susceptible to failures, legal liability issues, and inefficiencies in energy storage and infrastructure deployment, which hinder widespread adoption and increase accident risks.

Innovation Solution

A dedicated U-shaped gutter alongside the traffic lane with mechanical guidance for lateral wheels, retractable rollers for seamless entry and exit, dynamic low-voltage charging, and emergency braking calipers for enhanced safety and efficiency, allowing vehicles to operate in highly automated mode without constant driver vigilance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If contactless charging methods are used, then charging convenience is improved, but charging efficiency decreases and infrastructure cost increases

Engineering Contradiction:
Improvecharging convenienceVSAvoidcharging efficiency
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The patent introduces an intermediary mechanical contact system (conductive rails and sliding contacts) between the infrastructure and vehicle to transfer electrical energy. This mediator enables efficient power transfer through direct physical contact while maintaining ease of operation through automated contact mechanisms during normal driving conditions.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Use of energy by moving object

If lithium-ion batteries with higher mass capacity are used, then energy storage autonomy is improved, but manufacturing and recycling environmental impact increases

Engineering Contradiction:
Improveenergy storage autonomyVSAvoidenvironmental impact
Core Design Contradiction:
Use of energy by moving objectVSObject-generated harmful factors

Solution Approach 1:

The patent combines on-board battery storage with off-board infrastructure-based power delivery systems. This hybrid approach merges the advantages of both systems, allowing vehicles to use smaller batteries supplemented by dynamic charging from overhead or roadside conductive rails, thereby reducing the environmental burden of large battery manufacturing and recycling while maintaining energy autonomy.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If mechanical guidance systems with continuous rails are implemented, then trajectory control reliability is improved, but device complexity and infrastructure cost increase

Engineering Contradiction:
Improvetrajectory control reliabilityVSAvoidinfrastructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the guidance system into discrete modular components including sectional rails, standardized vehicle mounting points, and modular power transfer units. This segmentation allows the complex mechanical guidance system to be implemented in manageable sections, reducing overall infrastructure complexity while maintaining continuous trajectory control reliability through precise alignment of segments.

Inventive Principle:
Principle #1Segmentation

4Ease of operation

If driver vigilance is reduced in autonomous mode, then operational ease is improved, but safety risk increases due to system failures

Engineering Contradiction:
Improvedriver vigilance requirementVSAvoidsafety risk
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements beforehand cushioning through redundant mechanical guidance systems and emergency stop mechanisms that are pre-positioned along the trajectory. These systems provide a safety buffer that activates automatically upon detecting failures in the primary autonomous control systems, allowing reduced driver vigilance while maintaining safety through multiple layers of pre-arranged protective measures.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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

Enables safe and efficient high-speed automated driving with reduced infrastructure costs, increased traffic capacity, and lower battery requirements, minimizing accidents and environmental impact while facilitating a gradual transition to automated driving.

Implementation Method 1

the friction that the emergency brake caliper exerts on the three surfaces of the rail can generate a braking force of more than 1 g, independently of the coefficient of adhesion between the wheel and the road

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

retirable rollers, which make it possible, while traveling at cruising speed, to momentarily relieve the load on the wheels by taking support on an auxiliary rolling surface carried by the rail

Methodology Applied
Scientific EffectRolling friction: Roller

Data Source

PatentUS12606964B2Highly automated mode of road traffic
Publication Date: 2026.04.21 NOBILEAU PHILIPPE CONSTANT
  • US12606964B2 patent drawing
  • US12606964B2 patent drawing
  • US12606964B2 patent drawing

AI summary

Disclosed is a traffic system and method for motor vehicles (F), comprising, on the side of a traffic lane (12b, 12c), a dedicated track (21) in the form of a “U”-shaped gutter receiving, in a highly automated driving mode, one of the side wheel assemblies (16) of a vehicle, and comprising: • a running surface (22) substantially parallel to the surface of the roadway of the traffic lane (12b, 12c), • two side surfaces (23, 31) located on either side and above the running surface (22), one external (23) and the other internal (31) with respect to the footprint of the vehicle (F), the side surfaces (23, 31) being substantially perpendicular to the running surface (22), the internal side surface (31) maintaining the current ground clearance of the motor vehicles, wherein the side surfaces (23, 31) of the track are substantially continuous longitudinally and in that the system comprises a means for crossing the internal side surface (31) by lateral movement of the side wheels assembly (16) at sustained speed.