发明申请
- 专利标题: FUEL INJECTION CONTROL DEVICE AND FUEL INJECTION CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
- 专利标题(中): 燃油喷射控制装置和内燃机燃油喷射控制方法
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申请号: US14383240申请日: 2013-03-05
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公开(公告)号: US20150019110A1公开(公告)日: 2015-01-15
- 发明人: Ryo Suzuki , Takeshi Miyaura , Yoshiyasu Ito , Toyomori Tsuiki , Naoyuki Yamada
- 申请人: Ryo Suzuki , Takeshi Miyaura , Yoshiyasu Ito , Toyomori Tsuiki , Naoyuki Yamada
- 申请人地址: JP Kariya-shi, Aichi-ken JP Toyota-shi, Aichi-ken
- 专利权人: DENSO CORPORATION,TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人: DENSO CORPORATION,TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人地址: JP Kariya-shi, Aichi-ken JP Toyota-shi, Aichi-ken
- 优先权: JP2012-053246 20120309
- 国际申请: PCT/IB2013/000528 WO 20130305
- 主分类号: F02D41/36
- IPC分类号: F02D41/36
摘要:
An electronic control unit detects a manner of fluctuation of a fuel pressure with injection of fuel by a fuel injection valve with the use of a fuel pressure sensor, and calculates a tendency of deviation of an actual fuel injection characteristic of the fuel injection valve with respect to a basic fuel injection characteristic on the basis of a result of comparison between a detected temporal waveform and a basic temporal waveform. The tendency of deviation is reflected at a predetermined reflection rate (R) at the time of updating a learned value (Gij) for compensating for an individual difference of the fuel injection valve. The predetermined reflection rate (R) is increased when an accumulated value (D) of a vehicle travel distance is shorter than a predetermined value (Dth) as compared with when the accumulated value (D) is longer than or equal to the predetermined value (Dth).
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