Publication detail

Limiting factors of the response time of the magnetorheological damper

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

Original Title

Limiting factors of the response time of the magnetorheological damper

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

Magnetorheological damper; MR; time response; pulse-width modulation; eddy current

Authors

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

RIV year

2015

Released

8. 6. 2015

Publisher

IOS Press

ISBN

1383-5416

Periodical

INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS

Year of study

47

Number

2

State

Kingdom of the Netherlands

Pages from

541

Pages to

550

Pages count

9

URL

http://iospress.metapress.com/content/g432430x10543214/

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",
  journal="INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS",
  year="2015",
  volume="47",
  number="2",
  pages="541--550",
  doi="10.3233/JAE-140006",
  issn="1383-5416",
  url="http://iospress.metapress.com/content/g432430x10543214/"
}