发明授权
US5659134A Method for detecting abnormalities in a crank angle sensor and apparatus
for detecting abnormalities in a crank angle sensor
失效
用于检测曲轴转角传感器异常的方法和用于检测曲轴转角传感器异常的装置
- 专利标题： Method for detecting abnormalities in a crank angle sensor and apparatus for detecting abnormalities in a crank angle sensor
- 专利标题（中）： 用于检测曲轴转角传感器异常的方法和用于检测曲轴转角传感器异常的装置
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申请号： US575392申请日： 1995-12-20
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公开(公告)号： US5659134A公开(公告)日： 1997-08-19
- 发明人: Toru Tanaka , Tatsuhiko Takahashi
- 申请人： Toru Tanaka , Tatsuhiko Takahashi
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-220330 19950829
- 主分类号： F02D45/00
- IPC分类号： F02D45/00 ; F02D41/22 ; F02D41/34 ; G05B23/02 ; G01M15/00
摘要：
To improve the reliability and detecting capability of an apparatus for detecting abnormalities in a crank angle sensor, the apparatus comprises detection keeping devices which assumes that there is an air weight flow higher than a predetermined value for a predetermined interval after an output of the air volume sensor has fallen below a predetermined value, to enable abnormalities in the crank angle sensor to be detected with greater accuracy in spite of variations in air volume during cranking of the engine or after stopping of the engine.