Autonomous Tire Test Vehicle Control for Blind Banked Sections

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Solution Overview

Problem

In actual vehicle tire testing, the limited field of view on banked sections poses safety risks due to the requirement for vehicles to maintain high speeds, often restricting access to only one vehicle at a time, necessitating a method to enhance driving safety on these sections.

Innovation Solution

A control method and system that utilizes sensors to detect the presence of other vehicles on banked sections, preventing the vehicle from entering if another vehicle is detected, thereby ensuring safe operation by maintaining a predetermined distance or stopping the vehicle until it is safe to proceed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If vehicles maintain high speed on banked sections to change driving direction efficiently, then productivity is improved, but driving safety deteriorates due to limited field of view and collision risks

Engineering Contradiction:
Improvedriving direction change efficiencyVSAvoiddriving safety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The control device performs preliminary detection of other vehicles in the banked section before the subject vehicle enters. By detecting the presence of other vehicles in advance and preventing entry when another vehicle is present, the system ensures safety before the high-speed maneuver begins, resolving the contradiction between maintaining high speed for efficiency and ensuring safety through preliminary verification of the environment

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors the banked section for other vehicles using sensor data and adjusts the subject vehicle's entry decision based on real-time feedback. When another vehicle is detected, the control device prevents entry; when the section is clear, entry is permitted. This feedback mechanism enables high-speed operation when safe while preventing collisions when other vehicles are present

Inventive Principle:
Principle #23Feedback

2Reliability

If only one vehicle is allowed on banked sections to ensure safety, then driving safety is improved, but productivity deteriorates due to limited testing capacity

Engineering Contradiction:
Improvedriving safetyVSAvoidtesting capacity
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

Each vehicle is equipped with its own control device that independently detects other vehicles and makes entry decisions. The system serves itself by autonomously monitoring for other vehicles and controlling its own entry into the banked section, eliminating the need for centralized scheduling while maintaining safety and enabling multiple vehicles to operate independently

Inventive Principle:
Principle #25Self-service

3Productivity

If vehicles enter banked sections frequently for testing, then productivity is improved, but the risk of collision increases due to limited field of view

Engineering Contradiction:
Improvetesting frequencyVSAvoidcollision risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

Before each vehicle enters the banked section, the control device performs preliminary detection to ensure the section is clear of other vehicles. This preliminary action is repeated for each testing cycle, allowing frequent testing while maintaining safety by verifying the environment before each high-speed maneuver

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses continuous feedback from sensors to monitor the banked section status and adjusts vehicle entry decisions accordingly. When the section is detected as clear, entry is permitted for testing; when another vehicle is present, entry is prevented. This feedback loop enables frequent safe testing while eliminating collision risks

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12140500B2Control method, control device, control system, and tire testing method
Publication Date: 2024.11.12 BRIDGESTONE CORP
  • US12140500B2 patent drawing
  • US12140500B2 patent drawing
  • US12140500B2 patent drawing

AI summary

A control method of a vehicle (1) according to the present disclosure is a control method for controlling a vehicle (1) that has tires (6) mounted thereon and drives autonomously on a course (200) that includes a banked section (230). The control method includes an acquisition step of acquiring a detection result of a sensor (12) that detects information about the vehicle (1) or the course (200), and a control step of stopping the vehicle (1) so that the vehicle (1) does not enter the banked section (230) when it is determined that there is another vehicle in the banked section (230) based on the detection result of the sensor (12).