Pivoting Wheel Mobile Platform for Uneven Terrain Stability

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Solution Overview

Problem

Current mobile robot designs face challenges in maintaining stable support and motion on uneven terrains, especially for larger and heavier robots with attachments, which affects their performance in applications like transportation and pick-and-pack functions.

Innovation Solution

A mobile platform with pivotally connected wheel assemblies and a control system that allows for adaptive movement on various terrains, combined with a manipulator element that can be removably attached and controlled to avoid obstacles, ensuring stable operation and efficient navigation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If the mobile robot is designed to be larger and heavier for particular applications, then the robot can perform more demanding tasks, but the ability to maintain stable support and stable motion on uneven terrain deteriorates

Engineering Contradiction:
Improvetask performance capabilityVSAvoidstable support and motion
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The wheel assembly is designed with a pivot connection that allows it to dynamically adjust its orientation relative to the robot body. This dynamic adjustment enables the wheel assembly to adapt to uneven terrain by pivoting to maintain contact with the ground, thereby maintaining stable support and motion even for larger and heavier robots performing demanding tasks

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the robot operates on uneven terrain with terrain fluctuation, then the robot can handle more diverse environments, but maintaining stable support and stable motion becomes more difficult

Engineering Contradiction:
Improveterrain handling capabilityVSAvoidstable support and motion
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The pivotally connected wheel assembly provides dynamic adaptability to uneven terrain. The wheel assembly can pivot to adjust its orientation, allowing the robot to maintain stable support and motion when operating on diverse terrains with fluctuations, thereby resolving the contradiction between terrain adaptability and operational stability

Inventive Principle:
Principle #15Dynamics

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

The solution enables stable and efficient movement on flat and uneven terrains, allowing the mobile platform to adapt to terrain fluctuations and perform operations like obstacle avoidance, enhancing the robot's ability to handle diverse environments and payloads.

Implementation Method 1

the wheel frame being pivotally connected to the side and rear supports

Methodology Applied
Scientific EffectPivoting: Hinge

Data Source

PatentUS20240227161A9Mobile platform and manipulator base, and systems and methods of using the same
Publication Date: 2024.07.11 DUBAI FUTURE FOUNDATION
  • US20240227161A9 patent drawing
  • US20240227161A9 patent drawing
  • US20240227161A9 patent drawing

AI summary

Devices and systems for performing an operation are provided. The system comprises a mobile platform comprising a frame having side supports and a rear support, side wheel assemblies coupled to the side supports, and a rear wheel assembly coupled to the rear support. The wheel assemblies each comprise wheels and a wheel frame, the wheel frame being pivotally connected to the side and rear supports. The system further comprises a first control system for controlling movement of the mobile platform and a manipulator element coupled to the mobile platform. The manipulator element is configured to removably connect to the mobile platform and to perform an operation. The manipulator element comprises a second control system for controlling the operation. The first control system and the second control system are configured to communicate to cause the mobile platform to move and to cause the manipulator element to perform the operation.