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    • 6. 发明授权
    • Fuel injection control apparatus
    • 燃油喷射控制装置
    • US06678604B2
    • 2004-01-13
    • US09874995
    • 2001-06-07
    • Kenichi MachidaYoshiaki HirakataTomomi YuharaMasahiko Abe
    • Kenichi MachidaYoshiaki HirakataTomomi YuharaMasahiko Abe
    • F02D4118
    • G05D7/0623F01P2025/08F02D31/007F02D41/0225F02D41/345F02D2200/501Y02T10/44Y10T477/68
    • To allow an engine having an intake duct for drawing running air to produce a high output by performing appropriate fuel injection depending on dynamic pressure variations. A vehicle speed corrective coefficient calculator calculates a fuel corrective coefficient KVPLS based on a vehicle speed VPLS, and a throttle corrective coefficient calculator calculates a corrective coefficient KV&thgr;TH based on a throttle opening &thgr;TH. A corrective coefficient multiplier multiplies the fuel corrective coefficient KVPLS and the corrective coefficient KV&thgr;TH, thus calculating a vehicle speed fuel adjustment corrective coefficient KVAF. An injection time calculator calculates a basic injection time TiM based on the throttle opening &thgr;TH and an engine rotational speed Ne, and also calculates a fuel injection time Ti by reading the vehicle speed fuel adjustment corrective coefficient KVAF and correcting the basic injection time TiM. When the engine rotational speed Ne is equal to or higher than a predetermined value Ne1 and also when the transmission is shifted to a low gear position, a corrective coefficient KVAF signal is applied to the injection time calculator.
    • 通过根据动态压力变化执行适当的燃料喷射,允许具有用于吸入运行空气的进气管道的发动机产生高输出。 车速校正系数计算器基于车速VPLS计算燃料校正系数KVPLS,并且节气门校正系数计算器基于节气门开度θTH来计算校正系数KVthetaTH。 校正系数乘法器将燃料校正系数KVPLS和校正系数KVthetaTH相乘,从而计算车速燃料调节校正系数KVAF。 喷射时间计算器基于节气门开度θTH和发动机转速Ne计算基本喷射时间TiM,并且还通过读取车速燃料调节校正系数KVAF并校正基本喷射时间TiM来计算燃料喷射时间Ti。 当发动机转速Ne等于或高于预定值Ne1时,并且当变速器转换到低档时,校正系数KVAF信号被施加到喷射时间计算器。