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    • 1. 发明公开
    • Fuel injection control apparatus of an electronic controlled diesel engine
    • Kraftstoffeinspritzungssteuergerätfüreinen elektronisch geregelten Dieselmotor
    • EP0812982A3
    • 2000-07-12
    • EP97108796.0
    • 1997-06-02
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Itoh, Yoshiyasu
    • F02D41/40F02D41/06
    • F02D41/408F02B3/06F02D2250/12Y02T10/44
    • A fuel injection control apparatus of a diesel engine includes a spill valve (126) which opens and closes a high-pressure chamber of a fuel injection pump. A rotation angle sensing unit (106) senses a rotation angle of a crankshaft of the engine. A first unit (12, 442) sets the spill valve in a closed condition each time the rotation angle sensed by the rotation angle sensing unit is equal to a spill-control-off rotation angle. A second unit (12, 400, 410) sets the spill valve in an opened condition when the rotation angle sensed by the rotation angle sensing unit is equal to a fuel-injection-end rotation angle. A third unit (12, 408) inhibits the setting of the spill valve in the opened condition by the second unit when an engine speed during a cranking condition of the engine is less than a reference value. A fourth unit (12, 432, 434) inhibits the setting of the spill valve in the closed condition by the first unit during a period from the start of cranking of the engine to the start of computation of the engine speed.
    • 柴油发动机的燃料喷射控制装置包括打开和关闭燃料喷射泵的高压室的溢流阀(126)。 旋转角度检测单元(106)感测发动机的曲轴的旋转角度。 每当由旋转角度检测单元检测到的旋转角度等于溢出控制关闭旋转角度时,第一单元(12,442)将溢出阀设置在关闭状态。 当由旋转角度检测单元感测到的旋转角度等于燃料喷射端旋转角度时,第二单元(12,400,410)将溢出阀设置在打开状态。 当在发动机的起动状态期间的发动机转速小于参考值时,第三单元(12,408)在第二单元处禁止溢流阀处于打开状态。 第四单元(12,432,434)在从发动机起动开始到开始计算发动机转速的期间,禁止第一单元处于关闭状态的溢流阀的设定。
    • 10. 发明公开
    • A cylinder discrimination system utilizing fuel injection pump and its fuel injection pump
    • 系统ZERO Zylinderidentifikation unter Verwendung einer Kraftstoffeinspritzpumpe und Kraftstoffeinspritzpumpe
    • EP0893595A2
    • 1999-01-27
    • EP98113693.0
    • 1998-07-22
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Itoh, YoshiyasuSugiyama, TatsumasaKato, Akira
    • F02D41/40
    • F02D41/008F02D41/408Y02T10/44
    • In order to provide a fuel injection pump capable of discriminating a cylinder, the fuel injection pump (1) capable of supplying fuel to engine (2) having a plurality of cylinders is provided with reference signal generating system (7, 35) capable of generating a plurality of reference signals corresponding to a plurality of cylinders. Of a plurality of reference signals, a specific reference signal differs from the reference signals other than said specific reference signal. The time point at which the specific reference signal is generated is related to a predetermined cylinder out of a plurality of cylinders, whereby the specific cylinder can be identified by means of a single fuel injection pump by discriminating the specific reference signal by discrimination means (71). Therefore, where the difference in fuel injection rate as to a plurality of cylinders is measured during the manufacturing process of the fuel injection pump, it becomes possible to correct the fuel injection rate to reduce the difference in the fuel injection rate by individual cylinders.
    • 为了提供能够区分气缸的燃料喷射泵,能够向具有多个气缸的发动机(2)供给燃料的燃料喷射泵(1)设置有能够产生的参考信号发生系统(7,35) 对应于多个气缸的多个参考信号。 在多个参考信号中,特定参考信号与除了所述特定参考信号之外的参考信号不同。 产生特定参考信号的时间点与多个气缸中的预定气缸相关,由此可以通过单个燃料喷射泵来识别特定气缸,通过鉴别装置识别特定参考信号(71 )。 因此,在燃料喷射泵的制造过程中测量多个气缸的燃料喷射率的差异的情况下,可以校正燃料喷射率,以减少各个气缸的燃料喷射率的差异。