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Drastic Reduction in Drag Force of Car Brake by Rayleigh-Step

Research Project

Project/Area Number 15K13857
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Design engineering/Machine functional elements/Tribology
Research InstitutionNagoya Institute of Technology

Principal Investigator

Nakamori Takashi  名古屋工業大学, 工学(系)研究科(研究院), 教授 (40135314)

Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsディスクブレーキ / 引きずり抵抗 / 改良パッド / 浮上力 / 自動車 / ブレーキ / 改良型ブレーキパッド / 損失削減 / 燃費向上 / ブレーキパッド / 摩耗 / 自動生成 / 空気軸受 / 微小浮上 / 形状生成
Outline of Final Research Achievements

Brake pads of conventional disk brake of an automobile contact with brake disks, as a result of sliding resistance of brake caliper. This contacting loss is called brake loss, and it was assumed that 2.5 % reduction of fuel consumption by eliminating the brake loss. It is shown firstly that the brake pad can float by the brake disk rotation, if the brake pad surface has an appropriate profile. In the next, it is shown that the appropriate profile is automatically created with increasing the pad wear, if the pad has special slits. This technique is an effective tribological method, because only exchange for developed brake pad leads reduction in fuel consumption of automobile.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (8 results)

All 2018 2017 2015

All Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)

  • [Presentation] エンジン・パワートレインの損失削減と燃費向上2018

    • Author(s)
      中村隆
    • Organizer
      日本トライボロジー学会2018春季大会講演論文集
    • Related Report
      2017 Annual Research Report
  • [Presentation] 摩耗を活用した燃費改善ブレーキパッドの開発2017

    • Author(s)
      中村隆
    • Organizer
      日本トライボロジー学会2017春季大会講演論文集
    • Related Report
      2017 Annual Research Report
  • [Presentation] Drastic reduction in drag force of car brake by Rayleigh-step2017

    • Author(s)
      Takashi NAKAMURA
    • Organizer
      WTC2017, The 6th World Tribology Congress
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effects of Macro and Micro Structure on Tribological Properties2017

    • Author(s)
      Takashi Nakamura
    • Organizer
      Japan-Taiwan Tribology Symposium 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Novel design concept for Rayleigh step bearing with high robustness against step height change due to frictional wear2015

    • Author(s)
      Shunsuke Mori, Satoru Maegawa, Fumihiro Itoigawa, Takashi Nakamura
    • Organizer
      Malaysian International Tribology Conference 2015
    • Place of Presentation
      マレーシア
    • Year and Date
      2015-11-16
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 摩耗による潤滑性能劣化を抑止するレイリーステップ軸受の設計コンセプト2015

    • Author(s)
      森駿佑, 中村隆, 糸魚川文広, 前川覚
    • Organizer
      日本機械学会
    • Place of Presentation
      北海道大学
    • Year and Date
      2015-09-14
    • Related Report
      2015 Research-status Report
  • [Patent(Industrial Property Rights)] ディスクブレーキ2017

    • Inventor(s)
      中村隆
    • Industrial Property Rights Holder
      鵜飼裕之
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] ディスクブレーキ2017

    • Inventor(s)
      中村隆
    • Industrial Property Rights Holder
      中村隆
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017-05-01
    • Related Report
      2016 Research-status Report
    • Overseas

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Published: 2015-04-16   Modified: 2019-03-29  

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