Rear Axle Single Wheel Suspension Leaf Spring Articulation
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Solution Overview
Problem
Current single wheel suspensions for vehicle rear axles face challenges in weight reduction and improved component arrangement, which affect ride comfort and stability, while also requiring additional structural space and weight.
Innovation Solution
A single wheel suspension design incorporating a transverse leaf spring, a damper, a wheel carrier, a transverse carrier link, and a transverse camber link, where the transverse leaf spring is coupled in an articulated manner to one of the links or the wheel carrier via a connection element, allowing for relative movement and optimizing the arrangement of components for reduced weight and improved rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional single wheel suspension designs are used, then structural strength and stability are maintained, but weight is excessive and component arrangement is inefficient
Solution Approach 1:
The suspension system is divided into separate functional components: transverse carrier link, transverse camber link, tie rod, and transverse leaf spring. Each component performs a specific function and can be independently optimized for weight and strength, allowing efficient material distribution throughout the assembly.
Solution Approach 2:
The transverse leaf spring is coupled to the transverse carrier link via a connection element that allows movement in a transverse direction, adding a dimensional degree of freedom to the force decoupling mechanism. This enables the spring to absorb forces laterally while the links handle vertical and longitudinal loads.
2Stability of the object's composition
If additional structural components are added to improve rigidity and stability, then vehicle stability is enhanced, but structural space requirements and weight increase
Solution Approach 1:
The transverse carrier link serves multiple functions: it connects the wheel carrier to the vehicle, provides mounting points for the leaf spring, and acts as a structural element for force transmission. The transverse camber link similarly handles both camber control and structural support, eliminating the need for separate dedicated components.
Solution Approach 2:
The connection element integrates the mounting function for the transverse leaf spring directly into the transverse carrier link structure, combining what could have been separate mounting brackets and linkages into a unified component that reduces overall structural space requirements.
3Strength
If the transverse leaf spring is rigidly coupled to the links, then structural rigidity is maximized, but force decoupling and ride comfort are reduced
Solution Approach 1:
The connection element between the transverse leaf spring and transverse carrier link is designed to allow relative movement in the transverse direction. This dynamic coupling enables the leaf spring to decouple lateral forces from the vertical suspension links, improving ride comfort while maintaining structural rigidity through the articulated connection.
4Weight of moving object
If conventional component arrangement is used, then manufacturing simplicity is maintained, but weight reduction and rigidity optimization are limited
Solution Approach 1:
The suspension is segmented into modular components (carrier link, camber link, tie rod, leaf spring) that can be manufactured independently using standard fabrication processes, then assembled through articulated connections. This segmentation allows each part to be optimized for weight while maintaining manufacturing simplicity through modular assembly.
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 design achieves weight reduction, enhanced lateral and longitudinal rigidity, and improved ride comfort by allowing for a more efficient decoupling of forces and reduced structural space requirements, while maintaining vehicle stability and ride quality.
Implementation Method 1
a transverse leaf spring... coupled in an articulated manner to one of the transverse carrier link, the transverse camber link, or the wheel carrier
Implementation Method 2
a damper... allowing for relative movement and optimizing the arrangement of components
Data Source
AI summary
A single wheel suspension is provided for a rear axle of a vehicle. The single wheel suspension may have a transverse leaf spring, a damper, and a wheel carrier. The wheel carrier can be connected to the vehicle via a transverse link connected to the wheel carrier in an articulated manner. The wheel carrier can be further connected to the vehicle via a tie rod. The transverse links may include a carrier link and a camber link. The carrier link may be connected to the wheel carrier via two connections, with the transverse leaf spring being coupled in an articulated manner to one of the transverse links or wheel carrier via a connection element, which permits relative movement between the leaf spring and the transverse link or wheel carrier the leaf spring is coupled to.