发明公开
EP2905446A1 FAULT DETECTION DEVICE AND FAULT DETECTION METHOD 审中-公开
FEHLERDETEKTOR UND VERFAHREN ZUR FEHLERERKENNUNG

  • 专利标题: FAULT DETECTION DEVICE AND FAULT DETECTION METHOD
  • 专利标题(中): FEHLERDETEKTOR UND VERFAHREN ZUR FEHLERERKENNUNG
  • 申请号: EP13844183.7
    申请日: 2013-09-24
  • 公开(公告)号: EP2905446A1
    公开(公告)日: 2015-08-12
  • 发明人: NAKANO, Hitoshi
  • 申请人: Hino Motors, Ltd.
  • 申请人地址: 3-1-1, Hinodai Hino-shi, Tokyo 191-8660 JP
  • 专利权人: Hino Motors, Ltd.
  • 当前专利权人: Hino Motors, Ltd.
  • 当前专利权人地址: 3-1-1, Hinodai Hino-shi, Tokyo 191-8660 JP
  • 代理机构: Tranter, Andrew David
  • 优先权: JP2012223100 20121005
  • 国际公布: WO2014054453 20140410
  • 主分类号: F02B39/16
  • IPC分类号: F02B39/16 F02B37/18 F02D45/00
FAULT DETECTION DEVICE AND FAULT DETECTION METHOD
摘要:
A fault detection device includes a wastegate valve (23), a control unit (31), a working gas amount computation section (35), and a determination section (38). The control unit (31) obtains a rotational speed (NE) of an engine (10), a boost pressure (Pb), and an intake air i temperature (Tin). The working gas amount computation section (35) computes a computed value (Gc) of a mass flow rate of working gas in the engine (10) by using the rotational speed (NE), the boost pressure (Pb), and the intake air temperature (Tin). The determination section (38) determines that the wastegate valve (38) has a fault when the computed value (Gc) is not a normal value (Gs).
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