发明授权
US08915127B2 Method and apparatus for diagnosing a coolant pump for an internal combustion engine 有权
用于诊断用于内燃机的冷却剂泵的方法和装置

  • 专利标题: Method and apparatus for diagnosing a coolant pump for an internal combustion engine
  • 专利标题(中): 用于诊断用于内燃机的冷却剂泵的方法和装置
  • 申请号: US13818530
    申请日: 2011-07-22
  • 公开(公告)号: US08915127B2
    公开(公告)日: 2014-12-23
  • 发明人: Johann Graf
  • 申请人: Johann Graf
  • 申请人地址: DE Ingolstadt
  • 专利权人: Audi AG
  • 当前专利权人: Audi AG
  • 当前专利权人地址: DE Ingolstadt
  • 代理机构: Henry M. Feiereisen LLC
  • 优先权: DE102010035366 20100825
  • 国际申请: PCT/EP2011/003672 WO 20110722
  • 国际公布: WO2012/025178 WO 20120301
  • 主分类号: G01M15/04
  • IPC分类号: G01M15/04 F01P5/14 F01P7/16 F01P5/12 F01P11/16
Method and apparatus for diagnosing a coolant pump for an internal combustion engine
摘要:
In a method and a device for diagnosing a switchable coolant pump for circulating a coolant in a coolant circuit of an internal combustion engine, an actual value of the cylinder head temperature of the internal combustion engine is measured and the actual value of the cylinder head temperature is compared with a model value of the cylinder head temperature. The functionality of the coolant pump is assessed according to the comparison result.
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