• Title/Summary/Keyword: Ideal Brake Force

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A Study on Modular Design of Brake System and Application Method for Small-Medium EV Architecture (제동시스템 모듈러 설계 및 중소형 EV 아키텍처 적용 방안에 관한 연구)

  • J. H. Shim;U. H. Shin;S. R. Hwang;J. H. Lee;W. S.Yim;Y. J. Woo
    • Journal of Auto-vehicle Safety Association
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    • v.15 no.3
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    • pp.27-33
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    • 2023
  • Electric vehicles are widely produced from many car manufacturers around the world instead of internal combustion engine vehicle in order to respond a variety of environmental regulations. Also, they are applying for modular design method to develop plenty of the vehicles. And, both of these two issues will be an important trend to lead the future global automobile industries for a long time. In this paper, new brake architecture concept is proposed in order to respond to such a situation. First, physical interfaces between brake system like caliper, disc and other counter-parts are established for modular assembly. Second, we analyze effective factors of brake system for electric vehicles which need to reflect vehicle specifications such as total vehicle weight. Here, we consider ideal brake force by critical deceleration. Third, we simulate accumulated regenerative brake energy for two main driving modes to confirm to effectiveness for a variety of Electric Vehicle. Finally, we hope that it contributes to implement brake architecture for the development of Electric Vehicle platform through such a study.

THE MECHATRONIC VEHICLE CORNER OF DARMSTADT UNIVERSITY OF TECHNOLOGY-INTERACTION AND COOPERATION Of A SENSOR TIRE, NEW LOW-ENERGY DISC BRAKE AND SMART WHEEL SUSPENSION

  • Bert Breuer;Michael Barz;Karlheinz Bill;Steffen Gruber;Martin Semsch;Thomas Strothjohann;Chungyang Xie
    • International Journal of Automotive Technology
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    • v.3 no.2
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    • pp.63-70
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    • 2002
  • Future on-board vehicle control systems can be further improved through new types of mechatronic systems. In particular, these systems' capacities for interaction enhance safety, comfort and economic viability. The Automotive Engineering Department (fzd) of darmstadt University of Technology is engaged in research of the mechatronic vehicle corner, which consists of three subsystems: sensor tire, electrically actuated wheel brake and smart suspension. By intercommunication of these three systems, the brake controller receives direct, fast and permanent information about dynamic events in the tire contact area provided by the tire sensor as valuable control input. This allows to control operation conditions of each wheel brake. The information provided by the tire sensor for example help to distinguish between staightline driving and cornering as well as to determine $\mu$-split conditions. In conjunction with current information of dynamic wheel loads, tire pressures and friction tyre/road, the ideal brake force distribution can be achieved. Alike through integration of adaptive suspension bushings, elastokinematic behaviour and wheel positions can be adapted to manoeuver-oriented requirements.