Vehicle Height Adjustment System Assembly Simplification
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Solution Overview
Problem
Conventional vehicle height adjustment systems have complex assembly methods for piston parts and lead screws, leading to increased part counts and manufacturing costs, particularly in air suspension systems used in large vehicles.
Innovation Solution
A vehicle height adjustment system that simplifies the assembly process by using an input housing part with a stored working fluid, a moving input piston part, a lead screw, and connection parts that secure the piston part to the lead screw without a hydraulic seal member, reducing the number of components and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hydraulic seal member is interposed between the input piston part and the lead screw, then sealing performance is improved, but the number of parts and manufacturing cost increase
Solution Approach 1:
The patent removes the hydraulic seal member from the assembly between the input piston part and lead screw, eliminating the sealing component entirely while maintaining functional integrity through direct contact and precision manufacturing surfaces
Solution Approach 2:
The patent merges the input piston part and lead screw into a directly connected assembly without intermediate sealing components, integrating functions that were previously separated by the hydraulic seal member
2Reliability
If a hydraulic seal member is interposed between the input piston part and the lead screw, then sealing performance is improved, but manufacturing cost increases
Solution Approach 1:
The patent removes the hydraulic seal member from the assembly, eliminating the need to manufacture, inventory, and install separate sealing components, thereby reducing manufacturing costs
Solution Approach 2:
The patent replaces expensive hydraulic seal members with a simpler, more cost-effective direct connection design that eliminates the need for specialized sealing components
3Reliability
If the assembly method of piston part and lead screw is complex, then connection reliability is improved, but assembly efficiency decreases
Solution Approach 1:
The patent segments the connection design into distinct locking member components (first locking member 116, second locking member 117, third locking member 118) that can be independently assembled, simplifying the overall assembly process while maintaining connection reliability
Solution Approach 2:
The patent incorporates preliminary positioning features and pre-configured locking mechanisms that guide the assembly process, ensuring proper alignment and connection reliability before final assembly steps
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 effectively adjusts vehicle height by eliminating the need for hydraulic seal members, reducing part complexity and costs, while maintaining the ability to change vehicle height in response to load conditions, thus improving assembly efficiency and reducing manufacturing expenses.
Implementation Method 1
a lead screw inserted into the input piston part, the lead screw configured to move in response to receiving external power
Implementation Method 2
an input piston part positioned in the input housing part, the input piston part configured to move along a lengthwise direction of the input housing part
Data Source
AI summary
A vehicle height adjustment system includes: an input housing part having a space in which working fluid is stored; an input piston part positioned in the input housing part, the input piston part configured to move along a lengthwise direction of the input housing part; a lead screw inserted into the input piston part, the lead screw configured to move in response to receiving external power; and a connection part fastening the input piston part with the lead screw.