Invention Grant
US08082093B2 Fuel injection control apparatus and fuel injection control method of internal combustion engine 有权
燃油喷射控制装置和内燃机燃油喷射控制方法

  • Patent Title: Fuel injection control apparatus and fuel injection control method of internal combustion engine
  • Patent Title (中): 燃油喷射控制装置和内燃机燃油喷射控制方法
  • Application No.: US12225079
    Application Date: 2007-03-14
  • Publication No.: US08082093B2
    Publication Date: 2011-12-20
  • Inventor: Yoshihiro Okada
  • Applicant: Yoshihiro Okada
  • Applicant Address: JP Toyota
  • Assignee: Toyota Jidosha Kabushiki Kaisha
  • Current Assignee: Toyota Jidosha Kabushiki Kaisha
  • Current Assignee Address: JP Toyota
  • Agency: Oliff & Berridge, PLC
  • Priority: JP2006-071666 20060315
  • International Application: PCT/IB2007/000674 WO 20070314
  • International Announcement: WO2007/105103 WO 20070920
  • Main IPC: F02D41/06
  • IPC: F02D41/06
Fuel injection control apparatus and fuel injection control method of internal combustion engine
Abstract:
A fuel injection control apparatus of an internal combustion engine is provided with a fuel injection valve that injects fuel directly into a combustion chamber and a controller. When the engine is cold started, a first fuel injection is performed and the injected fuel is spark ignited during the compression stroke, and a second fuel injection is performed during the expansion stroke. The controller selects, according to exhaust emissions, one of a first fuel injection rate and a second fuel injection rate that is lower than the first fuel injection rate as a fuel injection rate during at least the expansion stroke and injects fuel at the selected fuel injection rate. The second fuel injection rate is selected as the fuel injection rate of the second fuel injection and the start timing of the injection is advanced compared with the conventional injection start timing.
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