Rear Suspension Link Layout for More Battery Space
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Solution Overview
Problem
Existing vehicle suspension systems do not efficiently utilize space within the wheelbase, limiting the range of electric vehicles and compromising driving characteristics.
Innovation Solution
A rear suspension system for a rear wheel with a rear lower link positioned rearwards from the wheel center, allowing additional space for a larger battery or reduced vehicle size, incorporating a five-link suspension system with specific link arrangements and bushing configurations to enhance stability and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If conventional suspension systems are used with traditional link arrangements, then suspension stability and comfort are maintained, but space within the wheelbase is not efficiently utilized, limiting battery size and vehicle range
Solution Approach 1:
The patent applies asymmetry by positioning the rear lower link's chassis-side hard point rearwards from the wheel center by a greater distance than other lower links. This asymmetric arrangement optimizes space utilization within the wheelbase while maintaining suspension stability, allowing for larger battery accommodation without compromising vehicle dynamics
2Length of moving object
If the vehicle length is reduced to improve urban maneuverability, then parking and navigation in tight spaces improve, but space for battery accommodation is reduced
Solution Approach 1:
The patent utilizes the longitudinal dimension within the wheelbase by positioning the rear lower link's hard point rearwards, effectively using available space in the length dimension that would otherwise be wasted. This allows shorter overall vehicle length while maintaining adequate battery volume through optimized spatial arrangement
3Quantity of substance
If a larger battery is accommodated to increase driving range, then energy capacity increases, but vehicle weight and dimensions increase
Solution Approach 1:
The patent extracts the trailing link from the conventional suspension arrangement, eliminating this component and its associated space requirements. This freed space is then utilized for larger battery accommodation, allowing increased energy capacity without proportional increases in vehicle weight and dimensions
4Volume of stationary object
If traditional suspension link arrangements are used, then comprehensive wheel control is achieved, but additional space is required within the wheelbase
Solution Approach 1:
The rear lower link with its extended rearward position serves multiple functions: it maintains suspension stability, enables space optimization within the wheelbase, and contributes to vehicle dynamics. This multi-functional design eliminates the need for separate trailing links while preserving comprehensive wheel control capability
Data Source
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AI summary
The present invention relates to a rear suspension system for a rear wheel of a vehicle and to a vehicle having such a rear suspension system.