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    • 1. 发明专利
    • Fuel injection quantity control device and internal combustion engine provided with same
    • 燃油喷射量控制装置和内燃机
    • JP2007187009A
    • 2007-07-26
    • JP2006003398
    • 2006-01-11
    • Denso CorpToyota Industries CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー株式会社豊田自動織機
    • ANZAI SHUNSUKEHAYASHI TAKAHIROHIROZAWA YOSHIHISAINABA TAKAYOSHITARUSAWA YUKI
    • F02D45/00F02D41/04F02D41/38
    • F02D41/3836F02D41/2438F02D41/2441F02D41/2454F02D41/247F02D41/403F02D2200/025Y02T10/44
    • PROBLEM TO BE SOLVED: To provide a fuel injection quantity control device performing learning control of fuel injection quantity capable of defining an appropriate learning value for fuel injection pressure over a wide range, especially for high fuel injection pressure while eliminating driver's sense of incongruity due to combustion noise generated at a time of learning control, and an internal combustion engine provided with the control device.
      SOLUTION: The fuel injection quantity control device performs single injection for learning control after raising rail pressure to a learning subject rail pressure higher than the current rail pressure by driving a high pressure fuel pump 4 (ST4) if background noise (engine noise and road noise) is relatively high (ST2, Yes) when pilot injection quantity learning control execution conditions are satisfied. On the other hand, the fuel injection quantity control device performs single injection for learning control after the rail pressure drops to the learning subject rail pressure lower than the current rail pressure if background noise (engine noise and road noise) is relatively low.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种执行燃料喷射量的学习控制的燃料喷射量控制装置,其能够在宽范围内特别是对于高燃料喷射压力定义燃料喷射压力的适当学习值,同时消除驾驶员的感觉 由于在学习控制时产生的燃烧噪声引起的不协调,以及配备有该控制装置的内燃机。 解决方案:如果背景噪声(发动机噪声),燃料喷射量控制装置通过驱动高压燃料泵4(ST4),将轨道压力升高到高于当前轨道压力的学习目标轨道压力,进行学习控制的单次喷射 道路噪声)相当高(ST2,是),当导频喷射量学习控制执行条件成立时。 另一方面,如果背景噪声(发动机噪声和道路噪声)相对较低,则在轨道压力下降到低于当前轨道压力的学习对象轨道压力之后,燃料喷射量控制装置执行用于学习控制的单次喷射。 版权所有(C)2007,JPO&INPIT
    • 3. 发明专利
    • Failure determination device of variable water pump
    • 可变水泵故障测定装置
    • JP2012246873A
    • 2012-12-13
    • JP2011120616
    • 2011-05-30
    • Toyota Industries Corp株式会社豊田自動織機Toyota Motor Corpトヨタ自動車株式会社
    • HIROZAWA YOSHIHISA
    • F01P11/14F01P7/16
    • PROBLEM TO BE SOLVED: To provide a failure determination device of a variable water pump that can improve the failure determination precision of the variable water pump.SOLUTION: When the variable water pump is temporarily decided as failed by the difference between the water temperature at the part which easily receives heat from an engine and the water temperature at the part which does not easily receive heat from the engine, the failure determination device controls the clutch part of the variable water pump so that the variable water pump repeats operations and stops under the normal condition of the engine. Then, the failure determination device determines whether there is no engine rotational variation when the variable water pump operation is controlled and the stop is controlled on the basis of the engine rotational frequency. If there is no engine rotational variation, the variable water pump is finally determined as failed. If there is an engine rotational variation, a cooling device component other than the variable water pump is determined as failed.
    • 要解决的问题:提供可以提高可变水泵的故障判定精度的可变水泵的故障判定装置。 解决方案:当可变水泵由于易于接收发动机的热量的部分的水温与不容易从发动机接收热量的部分的水温之间的差异暂时决定为失效时, 故障确定装置控制可变水泵的离合器部分,使得可变水泵在发动机的正常状态下重复操作并停止。 然后,故障确定装置确定当可变水泵操作被控制并且基于发动机旋转频率来控制停止时,是否没有发动机转动变化。 如果没有发动机旋转变化,则可变水泵最终被确定为失败。 如果存在发动机旋转变化,则将可变水泵以外的冷却装置部件判定为失败。 版权所有(C)2013,JPO&INPIT