发明申请
- 专利标题： APPARATUS OF ESTIMATING FUEL STATE
- 专利标题（中）： 燃油费用估算装置
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申请号： US13435933申请日： 2012-03-30
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公开(公告)号： US20120253639A1公开(公告)日： 2012-10-04
- 发明人: Yoshiharu Nonoyama , Naoyuki Yamada
- 申请人： Yoshiharu Nonoyama , Naoyuki Yamada
- 申请人地址： JP Kariya-city
- 专利权人： DENSO CORPORATION
- 当前专利权人： DENSO CORPORATION
- 当前专利权人地址： JP Kariya-city
- 优先权： JP2011-82197 20110401
- 主分类号： F02D41/26
- IPC分类号： F02D41/26
摘要：
An apparatus extracts a main waveform component and a branch waveform component from a pressure waveform detected by a fuel pressure sensor. The main waveform component is caused by pressure change traveling in a main passage. The branch waveform component is caused by pressure change traveling in a branch passage. The apparatus calculates traveling speeds based on the components. Then, the apparatus estimates a main passage temperature based on a detected value of the fuel temperature sensor, the traveling speeds, the fuel pressure waveform and an average pressure.
公开/授权文献
- US09157389B2 Apparatus of estimating fuel state 公开/授权日：2015-10-13
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