A QFT control design applied to an active suspension without an explicit model

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dc.contributor.authorVARGA, C. M. C.
dc.contributor.authorFabrizio Leonardi
dc.contributor.authorOrcidhttps://orcid.org/0000-0001-8056-7645
dc.date.accessioned2022-01-12T22:01:24Z
dc.date.available2022-01-12T22:01:24Z
dc.date.issued2013-07-19
dc.description.abstractThis work studies the controller design of an active suspension based on experimental data of frequency response without using the parametric model. The QFT (Quantitative Feedback Theory) control technique was used based on its convenience for designs without explicit models. As a performance specification, the controller must increase the passengers comfort by reducing the car body absolute acceleration compared to a passive suspension, but without decreasing the safety associated to the transmission of the forces to the ground that are associated with the tires oscillation amplitude. This specification must be maintained in the range of frequencies involving the two resonance frequencies. The experimental data are collected from harmonic excitation tests, where the information is contained in the gain and phase of the response. The controller used was obtained by adding poles and zeros using a Nichols chart, typical in QFT designs. To illustrate the proposed procedure and the controller performance, a physical simulator of a quarter car suspension was used. The experimental data of the closed loop control system suggests that the active suspension with the proposed controller can increase comfort without sacrificing vehicle safety.
dc.description.firstpage142
dc.description.lastpage151
dc.identifier.citationVARGA, C. M. C.; LEONARDI, F. A QFT control design applied to an active suspension without an explicit model. Proceedings of the IASTED International Conference on Modelling and Simulation, p. 142-151, July, 2013.
dc.identifier.doi10.2316/P.2013.802-043
dc.identifier.issn1021-8181
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4065
dc.relation.ispartofProceedings of the IASTED International Conference on Modelling and Simulation
dc.rightsAcesso Restrito
dc.subject.otherlanguageActive suspension
dc.subject.otherlanguageFrequency response
dc.subject.otherlanguageQFT
dc.titleA QFT control design applied to an active suspension without an explicit model
dc.typeArtigo de evento
fei.scopus.citations0
fei.scopus.eid2-s2.0-84883584576
fei.scopus.subjectActive suspension
fei.scopus.subjectController performance
fei.scopus.subjectHarmonic excitation
fei.scopus.subjectOscillation amplitude
fei.scopus.subjectPerformance specifications
fei.scopus.subjectQFT
fei.scopus.subjectQuantitative feedback theory
fei.scopus.subjectTwo resonance frequencies
fei.scopus.updated2024-07-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84883584576&origin=inward
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