Hydraulic Suspension Height Control for Rapid Load Adaptation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional hydraulic suspension systems in vehicles struggle to adapt rapidly to changing conditions such as sudden acceleration, deceleration, or cornering, and are limited by their inability to adjust to varying load conditions, leading to instability and compromised ride comfort.
Innovation Solution
An integrated adjustable suspension system utilizing solenoid-actuated valves and pressure sensors at each suspension corner, coupled with a central hydraulic system featuring a hydraulic pump, supply pressure sensor, and proportional valve, allows for dynamic and on-the-fly adjustments of the suspension height based on load magnitude and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hydraulic suspension systems are used, then ride comfort is improved through shock absorption, but the system cannot adapt rapidly to changing driving conditions and load variations
Solution Approach 1:
The suspension system transitions from static pre-set mechanical adjustments to dynamic real-time control through solenoid-actuated valves and pressure sensors that continuously adapt suspension characteristics based on current driving conditions and load variations
Solution Approach 2:
Pressure sensors at each suspension corner provide real-time feedback on fluid pressure and load conditions, enabling the control system to adjust valve positions and pump operation dynamically to maintain optimal suspension performance under varying conditions
2Adaptability or versatility
If manual adjustment components are incorporated, then some adaptability is achieved, but real-time adaptability is compromised
Solution Approach 1:
Manual mechanical adjustment components are replaced with automated solenoid-actuated valves and electronic pressure sensors that enable real-time, automated suspension adjustment based on sensor feedback and control algorithms
Solution Approach 2:
The suspension system automatically adjusts itself in real-time using onboard sensors and actuators without requiring manual intervention, with the control system autonomously responding to changing conditions
3Reliability
If hydraulic suspension systems are used, then vertical motion is minimized and traction is improved, but the system is limited in ability to adjust rapidly to varying load conditions
Solution Approach 1:
The system uses hydraulic fluid pressure control with solenoid-actuated valves to rapidly adjust suspension characteristics, leveraging the fast response of hydraulic systems to electrical control signals for quick adaptation to load changes
Solution Approach 2:
The system dynamically changes hydraulic pressure parameters and fluid flow rates through controlled valve actuation, enabling rapid adjustment of suspension stiffness and height in response to varying load conditions and driving maneuvers
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 precise control over suspension height adjustments, ensuring optimal balance and stability across varying load conditions, thereby enhancing vehicle performance and comfort.
Implementation Method 1
The system consists of an array of solenoid-actuated valves and pressure sensors
Implementation Method 2
At each suspension corner a sensor monitors fluid pressure
Implementation Method 3
Hydraulic fluid is pumped via external motor into an accumulator at each suspension corner to raise the vehicle
Implementation Method 4
Hydraulic suspension mechanisms have emerged as a solution to address these challenges, providing a smoother ride experience by effectively damping disturbances
Data Source
AI summary
A system and method for an improved system and method to control rate of height adjustment for such a suspension mechanism. The system consists of an array of solenoid-actuated valves and pressure sensors. At each suspension corner a sensor monitors fluid pressure, and a valve isolates said corner from a central hydraulic system. The central system consists of hydraulic pump, a sensor monitoring supply pressure, and a proportional valve to control relief to a reservoir. During adjustment, corner valves open to connect to the central system, which is either supplied or relieved of fluid at the desired rate thereby distinguishing away from the prior known suspension systems.