(The) design of a self-energizing brake system using non-circular gears = 비 구형 기어를 이용한 자기강화 브레이크 시스템 설계

Siemens VDO, German electronic and mechatronic developer announced an innovative braking device called Electronic Wedge Brake (EWB). It uses self-energizing effect using compared to conventional hydraulic devices. Also, EWB features more fast response characteristic, reducing stopping distance by 15 percent compared to hydraulic ones. But EWB is very sensitive to the variation of the system parameter error, such as friction coefficient variance during braking. Small parametric error can be highly amplified through self-energizing effect, degrading system response characteristic. For this reason, robust control technique using sliding mode control was developed in KAIST as a computer simulation in 2007 [7]. This research is focused on developing a new type of EWB which is called Electronic Noncircular Gear Brake. This suggested that brake system has the possibility applying variable wedge angle to system by using noncircular gears. For the first step to realize the system, normal system response is validated. Also robust control techniques making system stable for parametric variances, and particularly the pad friction-coefficient error will be considered as followed [7]. Another method to make system robust such as Limp Home mode control can be developed as well.
Advisors
Choi, Sei-Bumresearcher최세범researcher
Publisher
한국과학기술원
Issue Date
2009
Identifier
308504/325007  / 020073081
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학전공, 2009.2, [ vi, 70 p. ]

Keywords

brake by wire; electronic wedge brake; self energizing; non circular gear; 전자브레이크; 전자 웨지 브레이크; 자기강화; 비구형 기어; brake by wire; electronic wedge brake; self energizing; non circular gear; 전자브레이크; 전자 웨지 브레이크; 자기강화; 비구형 기어

URI
http://hdl.handle.net/10203/45670
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=308504&flag=t
Appears in Collection
ME-Theses_Master(석사논문)
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