Rolling Damper Linkage for Direction-Consistent Suspension Damping

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Solution Overview

Problem

Conventional suspension systems face challenges in independently controlling rolling motion asymmetry, leading to complex damping adjustments and unequal behavior depending on the direction of vehicle curvature, with conventional shock absorbers differing in damping when rolling clockwise or counterclockwise.

Innovation Solution

A suspension system utilizing two dampers, where one dampens vertical/symmetrical movement and the other absorbs asymmetric compression and expands when the car returns to normal, ensuring consistent damping behavior regardless of rolling direction, achieved through a mechanical system with guide rods and rocker arms that allow independent control of rolling angle damping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional shock absorbers are used to control rolling motion, then rolling damping is provided, but the damping behavior differs depending on the direction of rolling (clockwise or counterclockwise)

Engineering Contradiction:

Improveconsistent damping behaviorVSAvoiddamping adjustment complexity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The suspension system is divided into two independent functional parts: a first damper for vertical/symmetrical movement and a second damper for rolling/asymmetric movement. This segmentation allows each damper to be optimized for its specific function, with the second damper providing consistent damping in both rolling directions through its specialized mechanical linkage geometry

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The second damper employs an asymmetric mechanical linkage with guide rods and rocker arms that are specifically designed to handle asymmetric rolling motions. The linkage geometry is configured so that the damper rod moves in a path that compensates for the direction of rolling, ensuring that the damping force remains consistent whether the vehicle rolls clockwise or counterclockwise

Inventive Principle:

Principle #4Asymmetry

2Adaptability or versatility

If conventional suspension systems are used, then basic damping is provided, but independent control of rolling motion asymmetry is not achieved

Engineering Contradiction:

Improveindependent control capabilityVSAvoidmechanical system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The second damper serves multiple functions: it provides damping for rolling motion, compensates for asymmetric movements, and maintains consistent damping characteristics in both rolling directions. The mechanical linkage with guide rods and rocker arms enables this multi-functionality within a single integrated component, avoiding the need for separate systems for each function

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If conventional shock absorbers are fitted to control rolling motion, then rolling damping is achieved, but the number of components and weight increase

Engineering Contradiction:

Improverolling motion controlVSAvoidsuspension system weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The system merges the functions of vertical damping and rolling damping into two specialized dampers instead of using conventional systems that would require additional separate components. The second damper is specifically designed to handle rolling motion through its mechanical linkage, eliminating the need for separate anti-roll bars or additional shock absorbers, thereby reducing overall system weight while maintaining reliable rolling motion control

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4147888B1Rolling damper, respective suspension system with asymmetric rolling movement and symmetric vertical movement, mounting method thereof

Publication Date: 2024.05.29 IRREVERENTDRAGON LDA

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AI summary

Roll damper assembly for a vehicle suspension, comprising: a first bracket comprising first inner and outer bracket; a second bracket comprising second inner and outer bracket; a roll damper mounted between first and second inner bracket; first mount coupled to first outer bracket and second mount coupled to second outer bracket; first guide rod attached at first end to first outer bracket, and slidably attached to inner second bracket; a second guide rod attached at a first end to second outer bracket, and slidably attached to inner first bracket; first end stopper mounted on the second end of said first guide rod to stop second end of said first guide rod from exiting from slidable attachment to inner second bracket; second end stopper mounted on second end of said second guide rod to stop second end of said second guide rod from exiting from slidable attachment to inner first bracket.