Detail publikace

Limitující faktory časové odezvy magnetoreologického tlumiče

STRECKER, Z. ROUPEC, J. MAZŮREK, I. KLAPKA, M.

Originální název

Limiting factors of the response time of the magnetorheological damper

Český název

Limitující faktory časové odezvy magnetoreologického tlumiče

Anglický název

Limiting factors of the response time of the magnetorheological damper

Typ

článek v časopise

Jazyk

en

Originální abstrakt

Magnetorheological dampers seem to be suitable for the adaptive car suspension systems. For proper operation of the semi-active algorithms (skyhook, groundhook), the force response of the damper must be fast enough. In this paper, the response time of the Delphi vehicle MR damper is examined and the sources of the overall force time response on the control voltage are discussed. One of the main sources of the response time seems to be electro-magnetic circuit of the MR damper. A principle of an optimal controller for reducing response of the coil’s current on the control voltage is designed. However, the measured overall force time response with fast current controller was not reduced as expected. Therefore, a FEM simulation of the magnetic circuit was made. It shows that after an optimization of the current controller, eddy currents in the coil’s core cause long time response and therefore they are the limiting factor of the response time of the MR damper. These simulations were verified by the measurements and some recommendations about improving the pistons construction are given at the end.

Český abstrakt

Magnetoretoreologické tlumiče se zdají být vhodné pro adaptivní odpružení automobilů. Pro správnou funkci semiaktivních algoritmů (Skyhook, Groundhook) musí být časová odezva síly tlumiče dostatečně rychlá. V tomto článku je zjišťována časová odezva MR tlumiče a jsou nastíněny pravděpodobné příčiny. Jednou z hlavních příčin se zdá být elektromagnetický obvod MR tlumiče. Je navržen optimální způsob řízení proudu cívkou tlumiče. I po aplikaci tohoto řízení ale nebylo dosaženo očekávané celkové doby odezvy MR tlumiče. Proto byla provedena FEM simulace magnetického obvodu, ze které vyplývá, že hlavním zdrojem dlouhé časové odezvy (pokud je použit rychlý proudový regulátor) jsou vířivé proudy.

Anglický abstrakt

Magnetorheological dampers seem to be suitable for the adaptive car suspension systems. For proper operation of the semi-active algorithms (skyhook, groundhook), the force response of the damper must be fast enough. In this paper, the response time of the Delphi vehicle MR damper is examined and the sources of the overall force time response on the control voltage are discussed. One of the main sources of the response time seems to be electro-magnetic circuit of the MR damper. A principle of an optimal controller for reducing response of the coil’s current on the control voltage is designed. However, the measured overall force time response with fast current controller was not reduced as expected. Therefore, a FEM simulation of the magnetic circuit was made. It shows that after an optimization of the current controller, eddy currents in the coil’s core cause long time response and therefore they are the limiting factor of the response time of the MR damper. These simulations were verified by the measurements and some recommendations about improving the pistons construction are given at the end.

Rok RIV

2015

Vydáno

08.06.2015

Nakladatel

IOS Press

Strany od

541

Strany do

550

Strany počet

9

URL

BibTex


@article{BUT110128,
  author="Zbyněk {Strecker} and Jakub {Roupec} and Ivan {Mazůrek} and Milan {Klapka}",
  title="Limiting factors of the response time of the magnetorheological damper",
  annote="Magnetorheological dampers seem to be suitable for the adaptive car suspension systems. For proper operation of the semi-active algorithms (skyhook, groundhook), the force response of the damper must be fast enough. In this paper, the response time of the Delphi vehicle MR damper is examined and the sources of the overall force time response on the control voltage are discussed. One of the main sources of the response time seems to be electro-magnetic circuit of the MR damper. A principle of an optimal controller for reducing response of the coil’s current on the control voltage is designed. However, the measured overall force time response with fast current controller was not reduced as expected. Therefore, a FEM simulation of the magnetic circuit was made. It shows that after an optimization of the current controller, eddy currents in the coil’s core cause long time response and therefore they are the limiting factor of the response time of the MR damper. These simulations were verified by the measurements and some recommendations about improving the pistons construction are given at the end.",
  address="IOS Press",
  chapter="110128",
  doi="10.3233/JAE-140006",
  howpublished="print",
  institution="IOS Press",
  number="2",
  volume="47",
  year="2015",
  month="june",
  pages="541--550",
  publisher="IOS Press",
  type="journal article"
}