发明名称 |
Fuel-Pressure Waveform Detector |
摘要 |
A fuel-pressure waveform detector has a detect-waveform obtaining unit for obtaining a multi-stage injection pressure waveform by means of a fuel-pressure sensor while performing a multi-stage fuel injection during one combustion cycle. A model waveform memory stores a reference model pressure waveform of when a single fuel injection is performed. A waveform extracting unit extracts a pressure waveform due to the subject fuel injection by subtracting the reference model pressure waveform from the multi-stage injection pressure waveform. A correction unit corrects the reference model pressure waveform in such a manner that its attenuation degree becomes larger as a fuel injection period of the subject fuel injection is longer.
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申请公布号 |
US2011308497(A1) |
申请公布日期 |
2011.12.22 |
申请号 |
US201113161777 |
申请日期 |
2011.06.16 |
申请人 |
YAMADA NAOYUKI;NONOYAMA YOSHIHARU;DENSO CORPORATION |
发明人 |
YAMADA NAOYUKI;NONOYAMA YOSHIHARU |
分类号 |
F02D41/30 |
主分类号 |
F02D41/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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