Load Transport Vehicle Speed Control by Cargo Mass and Center of Gravity

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Solution Overview

Problem

Automatic moving vehicles face challenges in safely transporting objects of varying masses at appropriate speeds and accelerations, leading to potential dangers or prolonged movement times.

Innovation Solution

A moving body equipped with a driving device and control system that adjusts speed and acceleration/deceleration based on parameters like mass, size, and center of gravity of the loading object, along with a loading platform lifting and lowering device to acquire and manage these parameters, and a positioning member to limit movement during transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high speed traveling is performed with a large mass object on the loading platform, then productivity is improved, but safety deteriorates

Engineering Contradiction:
Improvetraveling speedVSAvoidsafety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies dynamics by making the traveling speed and acceleration/deceleration adjustable based on the loading object's mass. The control device dynamically changes movement parameters according to the detected mass, allowing high speed for light objects (improving productivity) while maintaining low speed for heavy objects (ensuring safety). This resolves the contradiction by making the system adaptive rather than fixed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameters of traveling speed and acceleration/deceleration based on the mass parameter of the loading object. By detecting the mass and adjusting movement parameters accordingly, the system optimizes both productivity and safety - light objects allow higher speeds while heavy objects receive reduced speeds, eliminating the need to choose between speed and safety.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If low speed traveling is performed with a small mass object on the loading platform, then safety is improved, but productivity deteriorates

Engineering Contradiction:
ImprovesafetyVSAvoidmovement time
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system dynamically adjusts traveling speed based on the loading object's mass. For small mass objects, the control device increases the traveling speed and acceleration/deceleration rates, allowing safe yet efficient transport. This eliminates the need to maintain unnecessarily low speeds, thus improving productivity while maintaining safety standards.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes movement parameters (speed and acceleration/deceleration) based on the mass parameter. For light objects, higher parameters are permitted, reducing movement time and improving productivity without compromising safety. This parameter adaptation resolves the contradiction between safety and productivity.

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If the positioning member protrudes from the loading platform when not lifted, then positioning accuracy is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvepositioning accuracyVSAvoidinterference with surrounding objects
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The positioning member is designed to be movable between protruding and retracted states based on the lifting status of the loading platform. When the platform is lifted, the positioning member protrudes to provide accurate positioning. When the platform is not lifted, it retracts to avoid interference. This dynamic behavior resolves the contradiction between positioning accuracy and ease of operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The positioning member automatically positions itself in advance based on the lifting state. When the loading platform is lifted, the positioning member protrudes beforehand to ensure accurate positioning of the loading object. When not lifted, it retracts in advance to prevent interference. This preliminary positioning action resolves the contradiction by ensuring accuracy only when needed.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20240051751A1Moving body
Publication Date: 2024.02.15 FUJI CORP
  • US20240051751A1 patent drawing
  • US20240051751A1 patent drawing
  • US20240051751A1 patent drawing

AI summary

A moving body of the present disclosure is a moving body for placing a loading object on a loading platform and transporting the loading object, and the moving body includes a driving device configured to move the moving body, and a control device configured to set at least one of speed and acceleration/deceleration of the moving body based on a parameter related to at least one of a mass, a size, a shape, and a center of gravity of the loading object, and control the driving device based on at least one of the set speed and acceleration/deceleration.