Adjustable Vehicle Reinforcing Member Damping

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing vehicle reinforcing members cannot adjust damping forces to suit different vehicle body sizes and environments, requiring multiple reinforcing members for varying conditions.

Innovation Solution

A vehicle reinforcing member with a cylinder, pistons, and an adjuster that adjusts damping force by varying the liquid flow between sub-chambers, allowing for flexible damping force adjustment through a communication path and cross-sectional area modification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed damping force reinforcing member is used, then the structure is simple, but it cannot adapt to different vehicle body sizes and environments

Engineering Contradiction:
Improveadaptability to different vehicle body sizes and environmentsVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The reinforcing member incorporates an adjustable damping mechanism that allows the damping force to be dynamically changed according to different vehicle body sizes and environments. The adjuster enables modification of the liquid flow area in the communication path, transforming a static structure into a dynamic one that can adapt to varying conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The damping force is adjusted by changing the physical parameter of the liquid flow area through the adjuster. By modifying the flow area in the communication path between sub-chambers, the damping characteristic is varied without changing the overall structure, allowing adaptation to different applications.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If different reinforcing members are prepared for different vehicle bodies and environments, then the adaptability is improved, but the device complexity and inventory requirements increase

Engineering Contradiction:
Improveadaptability to different vehicle bodies and environmentsVSAvoidnumber of different reinforcing members
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A single reinforcing member design incorporates an adjuster that enables it to perform multiple damping functions suitable for different vehicle bodies and environments. This universal design eliminates the need for multiple specialized reinforcing members, reducing inventory complexity while maintaining adaptability.

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

Solution Approach 2:

The adjustable damping mechanism allows one reinforcing member to dynamically adapt to different conditions, replacing the need for multiple fixed-damping members. The adjuster enables the same physical component to serve different purposes by changing its damping characteristic.

Inventive Principle:
Principle #15Dynamics

3Force

If the liquid flow area is increased, then the damping force is reduced, but the travel stability decreases

Engineering Contradiction:
Improvedamping forceVSAvoidtravel stability
Core Design Contradiction:
ForceVSStability of the object's composition

Solution Approach 1:

The damping force is made dynamically adjustable through the adjuster, which modifies the liquid flow area in real-time or according to different operating conditions. This allows optimization of the balance between damping force and travel stability for each specific situation, rather than being fixed at a compromise value.

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 adjustable damping forces suitable for various vehicle body sizes and environments, enhancing travel stability and reducing deformation and vibration effectively.

Implementation Method 1

a damping force is generated by a flow of the liquid, and displacement of the two locations on the vehicle body and vibration are significantly reduced or prevented

Methodology Applied
Scientific EffectViscous damping: Viscous Damping

Implementation Method 2

the first piston is moved in the axial direction while receiving the pressure of the gas in the gas chamber. Thus, a pressure difference between the first sub-liquid chamber and the second sub-liquid chamber is reduced, and an occurrence of cavitation is significantly reduced or prevented

Methodology Applied
Scientific EffectGas pressure: Pressure Gradient

Data Source

PatentUS10363972B2Vehicle reinforcing member and vehicle
Publication Date: 2019.07.30 YAMAHA MOTOR CO LTD
  • US10363972B2 patent drawing
  • US10363972B2 patent drawing
  • US10363972B2 patent drawing

AI summary

A vehicle reinforcing member includes first and second pistons movable in an axial direction in a cylinder. An inside of the cylinder is sectioned into a gas chamber and a main liquid chamber by the first piston, and the main liquid chamber is sectioned into a first sub-liquid chamber and a second sub-liquid chamber by the second piston. Gas is sealed in the gas chamber, and liquid is sealed in the first and second sub-liquid chambers. A piston rod is coupled to the second piston. The cylinder and the piston rod are respectively coupled to two locations of a vehicle body. A communication path connects the first sub-liquid chamber to the second sub-liquid chamber. A moving amount of the liquid in the communication path is adjusted by an adjuster such that a moving load through the second piston is adjusted.