Autonomous Vehicle Path Prediction Using Travel Influence Data

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Solution Overview

Problem

Current autonomous travel vehicle control systems lack the ability to accurately predict and set travel paths based on surrounding influences, leading to potential obstacles being undetected until the vehicle attempts to travel, which can result in unsafe navigation.

Innovation Solution

An autonomous travel vehicle control system that includes a display unit, a path setting unit, a travelling influence information acquisition unit, a travel path prediction unit, and a travel path display unit, which acquires and processes surroundings information to predict and display potential travel path deviations due to road surface conditions and obstacles, allowing for safe and accurate path setting before actual travel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If simulation travel is performed on a personal computer for fine tuning control parameters, then control parameters can be appropriately tuned, but it is not possible to predict the travel of the vehicle in consideration with an influence of the state of the travel path

Engineering Contradiction:
Improvecontrol parameter accuracyVSAvoidtravel path state information
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The system performs simulation travel in advance before actual vehicle operation to predict the travel path based on acquired travel path state information. This preliminary simulation allows the system to anticipate obstacles and adjust control parameters beforehand, ensuring both accurate parameter tuning and incorporation of travel path state considerations.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If obstacle detection is performed during actual autonomous travel, then the vehicle can navigate autonomously, but obstacles cannot be recognized until the autonomous travel is actually tried

Engineering Contradiction:
Improveautonomous travel capabilityVSAvoidobstacle recognition delay
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system acquires travel path state information and performs simulation travel before actual autonomous operation to predict potential obstacles and travel path deviations. This advance preparation enables the system to identify obstacles beforehand, eliminating the delay in obstacle recognition during actual travel while maintaining autonomous navigation capability.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If manual driving instruction is given for travel path, then the vehicle can follow the instructed path, but the effectiveness of obstacle detection cannot be evaluated

Engineering Contradiction:
Improvetravel path instructionVSAvoidobstacle detection effectiveness
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The system performs simulation travel based on manually instructed travel paths and compares the predicted travel path with the instructed path to evaluate obstacle detection effectiveness. This feedback mechanism allows operators to assess how well the obstacle detection system performs while maintaining the ease of manual path instruction.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10444755B2Autonomous travel vehicle control device, autonomous travel vehicle control system, and autonomous travel vehicle control method
Publication Date: 2019.10.15 SHARP KK
  • US10444755B2 patent drawing
  • US10444755B2 patent drawing
  • US10444755B2 patent drawing

AI summary

There is provided an autonomous travel vehicle control device that sets a travel path of an autonomous travel vehicle performing autonomous travel based on surroundings information. The device includes; a moving path determination unit that sets the travel path, a travelling influence information acquisition unit that acquires travelling influence information influencing a travel state of the autonomous travel vehicle, a travel path prediction unit that predicts the travel path based on the travelling influence information, and a travel path display unit that displays the travel path predicted by the travel path prediction unit.