Unitary Rolling Vehicle Dynamic Stabilization via Self-Learning Control

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Solution Overview

Problem

Designing a unitary rolling vehicle that can withstand various environmental and operational conditions, such as shocks, stairs, carpets, radiation, and thermal fluctuations, while maintaining stability and control, especially when influenced by disturbances, is challenging due to the complexity of dynamic changes in movement patterns.

Innovation Solution

A self-learning control system using dynamic state sensors, including gyroscopes and accelerometers, analyzes instant dynamic states and compares them to a desired route, using multivariate methods and PID controllers to compensate for deviations and maintain stability, enabling the vehicle to navigate autonomously or remotely in complex environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a self-learning control system with dynamic state sensors is implemented, then the vehicle's ability to compensate for dynamic changes and maintain stability is improved, but the device complexity increases

Engineering Contradiction:
Improvevehicle stabilityVSAvoidcontrol system complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The control system continuously receives feedback from dynamic state sensors (gyroscopes, accelerometers) that detect the vehicle's instantaneous dynamic state. This feedback loop enables the system to compare actual state with desired state and automatically adjust drive system commands to compensate for deviations caused by environmental disturbances, shocks, or terrain changes, thereby maintaining vehicle stability.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control system is designed to autonomously learn and adapt to the vehicle's dynamics through self-learning algorithms. The system automatically adjusts control parameters and compensates for dynamic changes without requiring external intervention, making the complex control system serve itself by continuously optimizing its own performance based on sensor data and learned patterns.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If dynamic state sensors and self-learning control are used to compensate for environmental conditions, then the vehicle's adaptability to various terrains is improved, but the difficulty of detecting and measuring dynamic states increases

Engineering Contradiction:
Improveterrain adaptabilityVSAvoiddynamic state detection difficulty
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The detection system is segmented into multiple specialized sensors, each dedicated to detecting specific dynamic parameters: gyroscopes for rotational motion, accelerometers for linear acceleration, and other sensors for specific environmental conditions. This segmentation allows the complex task of detecting overall dynamic state to be divided into manageable measurements of individual parameters, which are then integrated by the control system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control system acts as an intermediary that receives raw sensor data from multiple sources, processes and interprets this information through self-learning algorithms, and transforms it into meaningful control commands. This intermediary processing layer simplifies the detection task by filtering, integrating, and making sense of complex sensor outputs, thereby reducing the overall difficulty of detecting and measuring dynamic states.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 system effectively stabilizes the unitary rolling vehicle, allowing it to traverse diverse terrains and environments by continuously sensing and adapting to dynamic changes, ensuring stable and autonomous navigation over long distances for tasks like science and surveillance.

Implementation Method 1

dynamic state sensors, including gyroscopes and accelerometers

Methodology Applied
Scientific EffectGyroscope: Gyroscope

Implementation Method 2

dynamic state sensors, including gyroscopes and accelerometers

Methodology Applied
Scientific EffectAccelerometer: Accelerometer

Implementation Method 3

the drive system is further arranged to displace a drive mass with respect to the rolling member thereby moving the mass centre of the vehicle to achieve a driving force

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS8670889B2Unitary rolling vehicle
Publication Date: 2014.03.11 LUOTENG TECH HANGZHOU CO LTD
  • US8670889B2 patent drawing
  • US8670889B2 patent drawing
  • US8670889B2 patent drawing

AI summary

Unitary rolling vehicle including a rolling member (20), a drive system (30) supported by the rolling member and arranged to drive the rolling member for rotation, the centre of mass of the drive system being lower compared to the centre of the rolling member in the vertical direction at rest, and a control system for controlling the drive system, wherein the control system includes dynamic state sensors arranged to detect the instant dynamic state of the vehicle and the drive system.