Three-Port Damper Adjuster for Independent Compression and Rebound Control
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Solution Overview
Problem
Conventional damping components in vehicle suspension systems provide a constant damping rate or limited mechanisms for varying the damping rate, which are not sufficient for advanced recreational and sporting vehicles that require more dynamic control.
Innovation Solution
A three-port adjuster system for vehicle suspension dampers, featuring independent control of compression and rebound damping through separate electronic valves, allowing for variable damping rates and improved damping force adjustment based on sensor inputs and control systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional damping components are used, then the structure is simple, but the damping rate cannot be dynamically varied
Solution Approach 1:
The damping control system is segmented into independent compression and rebound valve circuits, each with its own three-port adjuster and electronic valve. This allows independent control of compression and rebound damping rates while maintaining a relatively simple overall structure. The segmentation enables dynamic adjustment of each damping phase without complicating the other.
Solution Approach 2:
The patent implements dynamic damping rate variation through electronically controlled valves that can adjust damping forces in real-time based on sensor inputs. The three-port adjuster design enables dynamic switching between different damping rates during compression and rebound strokes, transforming a static damping system into a dynamic one without excessive complexity.
2Measurement precision
If independent control of compression and rebound damping is implemented, then damping control precision is improved, but device complexity increases
Solution Approach 1:
The three-port adjuster serves multiple functions simultaneously: it controls compression damping, rebound damping, and provides a reference pressure port for the electronic valve. This multi-functionality reduces the need for separate components for each function, achieving independent compression and rebound control without proportionally increasing system complexity.
Solution Approach 2:
The reference pressure port acts as an intermediary element that facilitates precise electronic valve control by providing a stable pressure reference. This intermediary component enables high-precision damping control without requiring complex sensing and control mechanisms, simplifying the overall control system while maintaining precision.
3Stability of the object's composition
If constant damping rate is used, then device complexity is low, but vehicle stability and comfort are insufficient
Solution Approach 1:
The damping control system incorporates sensor feedback that monitors suspension movement and provides input to the electronic valves. This feedback mechanism enables the system to dynamically adjust damping rates to maintain vehicle stability and comfort, transforming a simple constant-damping system into an adaptive stability-enhancing system without excessive complexity.
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
Enables dynamic control of damping forces to enhance vehicle stability and comfort by independently managing compression and rebound movements, reducing vehicle tilt and improving ride quality.
Implementation Method 1
A three-port adjuster system for vehicle suspension dampers, featuring independent control of compression and rebound damping through separate electronic valves
Implementation Method 2
Shock absorbers (e.g., dampers) are used in numerous different vehicles and configurations to absorb some or all of a movement that is received at a first portion of a vehicle before it is transmitted to a second portion of the vehicle
Data Source
AI summary
A three-port adjuster for a vehicle suspension damper is described. The three-port adjuster includes a first port to provide a fluid flow path to a compression region of a damping cylinder, a second port to provide a fluid flow path to a rebound region of a damping cylinder, a third port to provide a fluid flow path to a reservoir chamber, and at least one valve to control a fluid flow therethrough.