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    • 9. 发明授权
    • Fuel injection control device and fuel injection control system
    • 燃油喷射控制装置和燃油喷射控制系统
    • US07870845B2
    • 2011-01-18
    • US12192303
    • 2008-08-15
    • Satoru SasakiTokuji KuronitaYouhei Morimoto
    • Satoru SasakiTokuji KuronitaYouhei Morimoto
    • F02B3/00F02B3/02
    • F02D41/403F02D35/023F02D35/024F02D35/026Y02T10/44
    • A fuel injection control device controls an operation of an injector such that fuel to be injected into a combustion chamber per combustion cycle is divided and injected at least through a first injection and a second injection, which is performed with a larger fuel quantity than the first injection after the first injection. The fuel injection control device includes an acquiring section and a first combustion state estimating section. The acquiring section acquires a sensing value of cylinder pressure in the combustion chamber sensed with a cylinder pressure sensor. The first combustion state estimating section estimates an actual combustion state of the fuel injected by the first injection based upon a second combustion timing cylinder pressure sensing value attributable to combustion of the fuel injected by the second injection out of the cylinder pressure sensing values.
    • 燃料喷射控制装置控制喷射器的操作,使得至少通过第一喷射和第二喷射来分配并喷射要在每个燃烧循环中喷射到燃烧室中的燃料,该第一喷射和第二喷射以比第一喷射 注射后第一次注射。 燃料喷射控制装置包括获取部和第一燃烧状态估计部。 获取部获取用气缸压力传感器感测的燃烧室中的气缸压力的感测值。 第一燃烧状态估计部基于由于通过第二次喷射喷射的燃料的燃烧而导致的第二燃烧正时气缸压力感测值,估计由第一喷射喷射的燃料的实际燃烧状态。