Novel clamping force control for electric parking brake systems

Minseok Jang, Young O. Lee, Wongoo Lee, Choong W. Lee, Chung C. Chung, Youngsub Son

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

In this paper we present a novel claming force control method for electric parking brake systems without using force sensors. The control method consists of three steps for a simple control structure. First, we show how to approximately detect the initial contact point between brake pads and a brake disk with the angular velocity of motor. Second, the clamping force is estimated with the function of angular displacement from the maximum angular velocity. Third, since the motor continues to rotate about several tens milliseconds even after power-off we propose a novel on-off control method to decrease the inertia effect of DC motor. The proposed control method is validated by experiments. It enables low cost manufacturing of electric parking brake systems due to its simple control structure.

Original languageEnglish
Title of host publicationProceedings of 2009 7th Asian Control Conference, ASCC 2009
Pages1588-1593
Number of pages6
StatePublished - 2009
Event2009 7th Asian Control Conference, ASCC 2009 - Hong Kong, China
Duration: 27 Aug 200929 Aug 2009

Publication series

NameProceedings of 2009 7th Asian Control Conference, ASCC 2009

Conference

Conference2009 7th Asian Control Conference, ASCC 2009
Country/TerritoryChina
CityHong Kong
Period27/08/0929/08/09

Keywords

  • Clamping force
  • DC motor
  • Electric parking brake
  • Estimation
  • Inertia effect

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