Adjustable Suspension Damper With Real-Time Valve Damping Control
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Solution Overview
Problem
Conventional vehicle suspension dampers provide constant or varying damping rates that are inadequate for technologically advanced vehicles, particularly those with three or more wheels, and lack the ability to quickly respond to changes in vehicle motion, leading to inadequate rider comfort and control.
Innovation Solution
An adjustable damper system utilizing a variable pressure valve and electronic control system that responds to real-time sensor data to dynamically adjust damping forces based on vehicle acceleration, tilt, and user-induced events, enabling quick and selective damping adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional constant or varying damping rates are used in vehicle suspension dampers, then the damper structure remains simple, but the rider comfort and control are inadequate due to inability to quickly respond to changes in vehicle motion
Solution Approach 1:
The patent implements a variable pressure valve that dynamically adjusts damping rates based on real-time vehicle motion conditions. The valve transitions from a static constant damping structure to a dynamic system where damping forces are continuously modified in response to acceleration, tilt, and other motion parameters, thereby improving rider comfort and control without requiring complete structural redesign
Solution Approach 2:
The patent incorporates sensors that detect vehicle motion parameters (acceleration, tilt, etc.) and feed this information back to the electronic control system. The control system processes this feedback and adjusts the variable pressure valve accordingly, creating a closed-loop control system that continuously optimizes damping forces based on actual vehicle conditions, thereby resolving the contradiction between simple structure and effective performance
2Speed
If conventional dampers without quick response capability are used, then the device complexity remains low, but the ability to respond to changes in vehicle motion is inadequate
Solution Approach 1:
The patent replaces conventional purely mechanical damping adjustment mechanisms with an electronically controlled variable pressure valve system. This substitution enables much faster response speeds because electronic control can react instantaneously to sensor inputs, whereas mechanical adjustment mechanisms would require physical movement and adjustment time. The electronic control system manages the complexity while delivering superior response performance
Solution Approach 2:
The variable pressure valve is designed to dynamically adjust damping forces in real-time based on vehicle motion conditions. This dynamic capability allows the system to respond quickly to changes in acceleration, tilt, and other motion parameters, achieving high response speed by continuously adapting damping characteristics rather than relying on fixed or slowly adjustable mechanical settings
3Reliability
If adjustable damping forces with real-time sensor data are implemented, then rider comfort is enhanced, but power consumption increases
Solution Approach 1:
The patent implements a control system that adjusts damping forces based on periodic sensor measurements of vehicle motion. Rather than continuous full-power operation, the system uses periodic sampling of motion parameters and makes targeted adjustments only when changes in riding conditions are detected. This periodic action approach maintains rider comfort while reducing overall power consumption compared to continuous high-level operation
Solution Approach 2:
The variable pressure valve changes damping parameters dynamically based on actual vehicle motion conditions rather than maintaining constant high-level damping. By adjusting damping forces to match actual ride conditions (increasing damping only when motion changes are detected), the system maintains rider comfort while consuming less power than a system that operates at maximum capability continuously
4Adaptability or versatility
If conventional dampers are used, then manufacturing simplicity is maintained, but adaptability to different vehicle types and conditions is limited
Solution Approach 1:
The patent designs the variable pressure valve and electronic control system as universal components that can be adapted to different vehicle types (bicycles, four-wheel drive vehicles, etc.). The sensor suite and control algorithms are configured to handle various vehicle configurations and riding conditions, making the same basic damper design versatile across multiple applications. This universality achieves adaptability without requiring completely different manufacturing processes for each vehicle type
Solution Approach 2:
The adjustable damping system allows the same damper to adapt its characteristics to different vehicle types and riding conditions through electronic control. Rather than manufacturing different dampers for different applications, the system uses dynamic adjustment of damping forces to accommodate various vehicle weights, geometries, and usage scenarios. This dynamic adaptability reduces manufacturing complexity compared to producing multiple specialized damper designs
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 provides enhanced rider comfort by quickly adjusting damping forces to minimize vehicle tilt and frame acceleration, offering robust control modes, low power consumption, and versatility across different vehicle types, including bicycles and four-wheel drive vehicles.
Implementation Method 1
An adjustable damper system utilizing a variable pressure valve and electronic control system that responds to real-time sensor data to dynamically adjust damping forces
Implementation Method 2
responds to real-time sensor data to dynamically adjust damping forces based on vehicle acceleration, tilt, and user-induced events
Implementation Method 3
quickly adjusting damping forces to minimize vehicle tilt and frame acceleration
Data Source
AI summary
A method for controlling vehicle motion is described. The method includes accessing a set of control signals including a measured vehicle speed value associated with a movement of a vehicle. A control signal associated with user-induced input is also accessed. The method compares the measured vehicle speed value with a predetermined vehicle speed threshold value to achieve a speed value threshold approach status, and then compares the set of values to achieve a user-induced input threshold value approach status. The method monitors a state of a valve within the vehicle suspension damper, and determines a control mode for the vehicle suspension damper. The method also regulates damping forces within the vehicle suspension damper.