Vehicle Suspension Assembly Rearward Stabilizer Bar
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Solution Overview
Problem
Vehicle suspension assemblies face challenges in achieving high roll stiffness while maintaining a shorter wheelbase due to packaging restraints, which limits ride comfort and dynamic performance.
Innovation Solution
The suspension assembly includes a trailing arm, knuckle, arm assembly, damper, connecting link, and stabilizer bar configuration that facilitates translational movement and supports the wheel, allowing for high roll stiffness without lengthening the wheelbase by positioning the stabilizer bar behind the engine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the wheelbase is lengthened to achieve high roll stiffness, then roll stiffness is improved, but vehicle packaging space is reduced and wheelbase becomes longer
Solution Approach 1:
The stabilizer bar is positioned rearward of the engine, utilizing the transverse dimension and rearward space instead of extending the wheelbase longitudinally. This dimensional shift allows the stabilizer bar to provide roll stiffness support without increasing the vehicle's length, effectively resolving the contradiction between roll stiffness and wheelbase length.
2Strength
If the stabilizer bar is positioned forward to improve roll stiffness, then roll stiffness is improved, but packaging space around the engine is reduced
Solution Approach 1:
The stabilizer bar is extracted from the traditional forward position near the engine and relocated to the rearward position behind the engine. This extraction removes the conflict between the stabilizer bar and engine packaging space, allowing both components to be optimally positioned without interference.
3Strength
If traditional suspension configuration is used, then ease of manufacture is maintained, but roll stiffness and dynamic performance are limited
Solution Approach 1:
The rearward-positioned stabilizer bar serves multiple functions: it provides roll stiffness support, utilizes otherwise wasted rearward suspension space, and maintains compatibility with standard manufacturing processes. This multi-functional positioning achieves improved performance without significantly increasing manufacturing complexity.
Data Source
AI summary
Some embodiments are directed to a suspension assembly of a vehicle having a frame and an engine. The suspension assembly can include a trailing arm having first and second ends and configured to extend from the frame at the first end. The suspension assembly can further include a knuckle connected to the second end of the trailing arm. The suspension assembly can include an arm assembly configured to extend from the frame to support the knuckle and facilitate translational movement of the knuckle relative to the frame in at least one predetermined direction. The suspension assembly can include a damper and a connecting link configured to extend from the frame and connected to the trailing arm. The suspension assembly can include a stabilizer bar connected to the connecting link and extending rearward around the engine.