The Study of Semiactive Suspensions by On-Line Control of Damping and Stiffness Parameters

When compared with active suspensions, semiactive suspensions have the advantages of simple hardware requirement, lower capital and operational cost, and the desirabl stability and reliability behavior that characterizes passive devices. They can achieve performances close to those of active devices...

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Bibliographic Details
Published inTransactions of the Japan Society of Mechanical Engineers Series C Vol. 56; no. 521; pp. 71 - 76
Main Author IWATA, Yoshiaki
Format Journal Article
LanguageEnglish
Japanese
Published The Japan Society of Mechanical Engineers 1990
Subjects
Isolation Performance
Optimum Observer
Parameter Control
Semiactive Suspension
Shock and Vibration
Skyhook Damper
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Summary:When compared with active suspensions, semiactive suspensions have the advantages of simple hardware requirement, lower capital and operational cost, and the desirabl stability and reliability behavior that characterizes passive devices. They can achieve performances close to those of active devices. Generally, semiactive devices use a damper in which the damper coefficient is variable. This paper proposes a new semiactive suspension in which both damper coefficient and spring constant can be modulated at high bandwidth. The control strategy for this device uses only a directly measurable relation position in vehicle applications. Simulations and experimental studies show that the proposed system is compared to passive and ordinary semiactive suspensions.
ISSN:0387-5024
1884-8354
DOI:10.1299/kikaic.56.71