Optimization of a Vehicle Suspension Using a Semi-Active Damper

2000-01-3304

12/01/2000

Event
International Mobility Technology Conference and Exhibit
Authors Abstract
Content
Semi-active suspension is a subject of much research in the last years. These systems achieve performances similar to those achieved by active suspensions with relative low cost, light weight and low energy consumption. In this paper, an optimized passive system, a semi-active “on-off” system and a semi-active “CVD”(Continuously Variable Damper) system are compared in relation to ride comfort and tire deflection. The numerical simulations are based on a quarter car model. The passive system is optimized to obtain the minimum body vertical acceleration and the rattlespace (suspension deflection), the tire deflection, the body velocity and the axle velocity are considered as constraints,. The control laws of the semi-active system are based on the “skyhook” theory, in which the damping coefficient is controlled actively. Numerical results show that the semi-active “CVD” system gives better ride comfort, with higher tire deflection when compared with the passive and semi-active “on-off” systems.
Meta TagsDetails
DOI
https://doi.org/10.4271/2000-01-3304
Pages
10
Citation
Motta, D., Zampieri, D., and Pereira, A., "Optimization of a Vehicle Suspension Using a Semi-Active Damper," SAE Technical Paper 2000-01-3304, 2000, https://doi.org/10.4271/2000-01-3304.
Additional Details
Publisher
Published
Dec 1, 2000
Product Code
2000-01-3304
Content Type
Technical Paper
Language
English