Bearing Housing Bypass Shock Assembly for Adaptive Damping
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Solution Overview
Problem
Vehicle suspension systems face challenges in dynamically adjusting to changing loads and terrain, leading to issues such as uneven ride height, loss of control, and decreased performance due to inadequate damping and compression characteristics.
Innovation Solution
A shock assembly with a bearing housing bypass assembly that includes a dual-walled cylinder with bypass openings and a flow valve system, allowing for adjustable damping and fluid flow between compression and rebound volumes, enabling dynamic adjustment of damping characteristics based on piston position and fluid pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional shock assembly with fixed damping characteristics is used, then the structure is simple and reliable, but the suspension system cannot dynamically adjust to changing loads and terrain, leading to uneven ride height and loss of control
Solution Approach 1:
The shock assembly incorporates a bypass assembly with a flow valve that dynamically adjusts fluid flow between compression and rebound chambers based on piston position and pressure conditions. This enables the damping characteristics to change adaptively during operation, resolving the contradiction between fixed simple structure and dynamic adaptability.
Solution Approach 2:
The system changes physical parameters (fluid flow rate, pressure differential) based on operating conditions. The bypass assembly allows fluid to redirect between chambers depending on piston position and pressure, effectively changing the damping parameters without requiring a completely different structure for each condition.
2Reliability
If a shock assembly with adjustable damping characteristics is implemented, then vehicle stability and performance are enhanced, but the device complexity increases due to additional components
Solution Approach 1:
The bypass assembly serves multiple functions simultaneously: it acts as a flow control mechanism, a pressure regulation device, and a means for dynamic damping adjustment. By consolidating these functions into a single integrated assembly rather than separate components, the system achieves enhanced reliability without proportionally increasing component quantity.
Solution Approach 2:
The flow valve in the bypass assembly automatically responds to pressure differentials and piston position without external control. The system self-regulates fluid flow between chambers based on real-time conditions, eliminating the need for additional sensors, actuators, or control systems that would further increase complexity.
3Reliability
If a bypass assembly with flow valve is added to enable dynamic damping adjustment, then bottoming out and top-out issues are reduced, but the manufacturing complexity increases
Solution Approach 1:
The bypass assembly is integrated directly into the shock assembly housing, merging the flow control function with the existing structural components. This consolidation reduces the number of separate parts that need to be manufactured and assembled, thereby minimizing the increase in manufacturing complexity while still achieving the desired damping performance.
4Ease of operation
If fluid flow paths are made adjustable between compression and rebound volumes, then ride height maintenance is improved, but the device complexity increases
Solution Approach 1:
The bypass assembly acts as an intermediary fluid pathway that connects the compression and rebound chambers. Instead of requiring complex active control systems to manage fluid flow, the bypass assembly passively mediates fluid redistribution based on pressure differentials, simplifying the fluid control system while maintaining ride height.
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
This solution enhances vehicle stability and performance by providing adaptive damping, reducing the risk of bottoming out or top-out issues, and maintaining optimal ride height across varying loads and terrains.
Implementation Method 1
A shock assembly with a bearing housing bypass assembly that includes a dual-walled cylinder with bypass openings and a flow valve system, allowing for adjustable damping and fluid flow between compression and rebound volumes
Implementation Method 2
The bypass assembly may include a flow valve that restricts flow through the bypass assembly based on a pressure differential across the flow valve
Implementation Method 3
Particular embodiments of the invention relate to methods and apparatus useful for vehicle shock assemblies
Data Source
AI summary
A shock assembly is disclosed. The assembly includes a damper chamber having an outer wall with a first inner diameter (ID). A secondary chamber within the damper chamber, the secondary chamber comprising an exterior wall with an external diameter (ED) less than the ID of the outer wall to form an annular region therebetween. A damping piston coupled to a piston rod, the damping piston disposed in the secondary chamber and axially movable relative to the secondary chamber, the damping piston to bifurcate the secondary chamber into a compression side and a rebound side. A valve to control a flow of a working fluid between the annular region and the secondary chamber.