Dual Gyroscope Stabilization for Two-Wheeled Vehicle Torque Control

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Solution Overview

Problem

Existing rotary mass devices for two-wheeled vehicles lack effective control over torques and angular momentums to stabilize the vehicle during various movements, such as cornering and inclines, leading to instability and potential loss of traction or overturning.

Innovation Solution

The implementation of a method using two gyroscopic instruments with controllably pivotable axes of rotation, allowing for synchronized or counteracting torques to be applied along three orthogonal vehicle axes, managed by an electrical control device to maintain continuous and steady vehicle stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single gyroscope is used for vehicle stabilization, then the device complexity is reduced, but the ability to provide controlled torques along multiple axes is insufficient

Engineering Contradiction:
Improvenumber of gyroscopesVSAvoidtorque control capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The stabilization system is divided into multiple independent gyroscope units, each responsible for specific torque generation along different axes. This segmentation allows each gyroscope to be simpler in design while the collective system achieves comprehensive multi-axis torque control capability.

Inventive Principle:
Principle #1Segmentation

2Reliability

If multiple gyroscopes with independent torque control are implemented, then vehicle stability during cornering and inclines is improved, but the device complexity and component mass increase

Engineering Contradiction:
Improvevehicle stabilityVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple gyroscope units are merged into a single integrated rotating mass device with a unified control architecture. The control device coordinates the gyroscopes' rotational speeds and orientations to generate combined torque effects, reducing overall system complexity while maintaining stability performance.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The gyroscope system is designed to perform multiple functions: providing torque along roll axes during cornering, compensating for inclines, and maintaining vehicle stability under various operating conditions. This multi-functionality reduces the need for separate specialized components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If gyroscope rotational speeds and orientations are actively controlled to compensate for vehicle movements, then vehicle stability and safety are improved, but the energy consumption increases

Engineering Contradiction:
Improvevehicle safetyVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The control system adjusts gyroscope rotational speeds and orientations in periodic cycles, synchronizing with the vehicle's movement patterns. This periodic control allows the gyroscopes to efficiently counteract disturbances while minimizing continuous energy consumption compared to constant high-speed rotation.

Inventive Principle:
Principle #19Periodic action

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

This solution enhances vehicle stability by actively compensating for movements and inclines, reducing the risk of loss of traction or overturning, while minimizing component mass, size, and cost, and improving comfort and safety.

Implementation Method 1

the first rotating mass is rotatable to effect a first angular momentum, and the second rotating mass is rotatable to effect a second angular momentum

Methodology Applied
Scientific EffectAngular momentum: Angular Momentum

Implementation Method 2

a first gyroscope and a second gyroscope, the first gyroscope comprising a first cardanically mounted rotating mass with a first axis of rotation

Methodology Applied
Scientific EffectGyroscope effect: Gyroscope

Implementation Method 3

the first axis of rotation is spatially pivotable in a controlled manner to effect a first torque, the second axis of rotation is spatially pivotable in a controlled manner to effect a second torque

Methodology Applied
Scientific EffectTorque: Torque

Data Source

PatentEP3497000B1Method for gyroscope of two-wheeld vehicle and device
Publication Date: 2021.09.15 BAYERISCHE MOTOREN WERKE AG
  • EP3497000B1 patent drawingFigure 1~2
  • EP3497000B1 patent drawingFigure 3

AI summary

A method for operating a rotating-mass device (102) of a two-wheeled vehicle (100), the rotating-mass device (102) having a first gyroscopic instrument (104) and a second gyroscopic instrument (106), rotating-mass device (102) for a two-wheeled vehicle (100), the rotating-mass device (102) having a first gyroscopic instrument (104), a second gyroscopic instrument (108), and two-wheeled vehicle (100) having vehicle wheels (110, 112), three orthogonal vehicle axes (122, 124, 128) and a rotating-mass device (102).