Integrated Electronics in Hydraulic Shock Absorber
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Solution Overview
Problem
Existing vehicle suspension systems with hydraulic dampers lack advanced control mechanisms for dynamically adjusting damping characteristics in response to varying driving conditions, leading to suboptimal ride comfort and handling.
Innovation Solution
Integration of an electrically adjustable hydraulic shock absorber with an electromechanical valve and a power drive electronics system, including a printed circuit board assembly, to control the damping state of the shock absorber through an integrated electronic system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an electrically adjustable hydraulic shock absorber with electromechanical valve is used, then ride comfort and handling are improved through dynamic damping adjustment, but device complexity increases due to integrated electronic system
Solution Approach 1:
The patent combines the electromechanical valve and power drive electronics into an integrated electronic system housed within a single housing structure. The power drive electronics are positioned adjacent to the electromechanical valve, eliminating the need for separate external control units and reducing overall system complexity despite adding electrical control capabilities.
Solution Approach 2:
The integrated electronic system serves multiple functions: it controls the electromechanical valve for damping adjustment, houses the power drive electronics for actuation, and provides a unified control architecture that manages both electrical and hydraulic components through a single system rather than separate independent systems.
2Loss of time
If power drive electronics are integrated adjacent to the electromechanical valve, then control response time is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The power drive electronics are nested within the same housing as the electromechanical valve, with the electronics positioned in a compartment adjacent to the valve. This nested arrangement minimizes the physical distance between control and actuation components, reducing signal transmission time and improving response speed while containing all components within a single manufacturable housing structure.
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 real-time adjustment of damping characteristics, enhancing ride comfort and handling by effectively managing vibrations and improving the overall performance of the vehicle suspension system.
Implementation Method 1
electromechanical valve disposed in a valve cavity within the electrically adjustable hydraulic shock absorber
Implementation Method 2
power drive electronics electrically coupled to the electromechanical valve
Implementation Method 3
hydraulic shock absorber... to absorb unwanted vibrations which occur during driving
Data Source
AI summary
The present disclosure relates to a damper system for a vehicle. The damper system may have an electrically adjustable hydraulic shock absorber including a rod guide assembly, a pressure tube, a reserve tube and an electromechanical valve. The electromechanical valve may be disposed in a valve cavity within the shock absorber. An integrated electronic system may be included which has a power drive electronics. The power drive electronics is electrically coupled to the electromechanical valve. The integrated electronic system is disposed along an axis parallel to a longitudinal axis of the pressure tube, and at a location radially outwardly of the pressure tube adjacent the rod guide assembly.