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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
    • 2. 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
    • 4. 发明专利
    • Fuel injection device
    • 燃油喷射装置
    • JP2009264333A
    • 2009-11-12
    • JP2008117394
    • 2008-04-28
    • Toyota Motor Corpトヨタ自動車株式会社
    • HIROZAWA YOSHIHISA
    • F02M55/02F02D41/04F02D45/00
    • PROBLEM TO BE SOLVED: To maintain an injection quantity of a fuel injection valve, even when the opening area of a nozzle port is changed. SOLUTION: This fuel injection device 1 has the fuel injection valve 2 for forming the nozzle port 2a for injecting fuel, a common rail 5 for maintaining the fuel supplied to this fuel injection valve 2 in a high pressure state, and an ECU 8 for determining a change in the opening area of the nozzle port by controlling pressure of the fuel in the common rail 5. The ECU 8 controls the pressure of the fuel when determining reduction in the opening area of the nozzle port 2a, and maintains the injection quantity of the fuel injection valve 2. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了保持燃料喷射阀的喷射量,即使喷嘴口的开口面积改变也是如此。 解决方案:该燃料喷射装置1具有用于形成用于喷射燃料的喷嘴端口2a的燃料喷射阀2,用于将供应到该燃料喷射阀2的燃料保持在高压状态的共轨5和ECU 8,用于通过控制共轨5中的燃料的压力来确定喷嘴口的开口面积的变化。ECU8在确定喷嘴口2a的开口面积的减小时控制燃料的压力,并且保持 燃油喷射阀2的喷射量。(C)2010,JPO&INPIT
    • 5. 发明专利
    • Control device for internal combustion engine with supercharger
    • 用于内燃机的超级控制装置
    • JP2010216450A
    • 2010-09-30
    • JP2009067623
    • 2009-03-19
    • Toyota Motor Corpトヨタ自動車株式会社
    • TOMITA TETSUJITSUKAMOTO YOSHIHISAHIROZAWA YOSHIHISA
    • F02D23/00F02B37/013F02B37/12F02B37/16F02B37/18
    • Y02T10/144
    • PROBLEM TO BE SOLVED: To provide a desired acceleration soon after starting re-acceleration when performing the re-acceleration after transferring from an area with the supercharging effect of only a second supercharger used to an area with the supercharging effects of first and second superchargers used. SOLUTION: The first supercharger and the second supercharger larger than the first supercharger are interposed in series in a suction/exhaust passage. In the area (area B) with the supercharging effects of both the first and second superchargers used, the opening of an exhaust control valve interposed in a passage bypassing the turbine of the first supercharger is set to an intermediate opening between the maximum opening and the minimum opening, and the opening of an intake control valve interposed in a passage bypassing the compressor of the first supercharger is minimized. In the area (area C) with the supercharging effect of only the second supercharger used, the opening of each of the exhaust control valve and intake control valve is maximized. In the area C, only when the present operating condition is in the special area C and a deceleration condition is detected, the opening of the exhaust control valve is regulated to the intermediate opening instead of the maximum opening. With the turbine of the first supercharger sufficiently rotated, it is possible to transfer from the area C to the area B. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:在从仅使用第二增压器的增压效应的区域转移到具有第一和第二增压效果的区域之后执行再加速时,在开始重新加速之后立即提供期望的加速度,以及 第二增压器使用。 解决方案:大于第一增压器的第一增压器和第二增压器串联插入抽吸/排气通道。 在使用了第一增压器和第二增压器的增压效果的区域(区域B)中,设置在绕过第一增压器的涡轮的通道中的排气控制阀的打开被设定为最大开度和 最小开度,并且插入在绕过第一增压器的压缩机的通道中的进气控制阀的打开最小化。 在仅使用第二增压器的增压效果的区域(区域C)中,排气控制阀和进气控制阀的开度最大化。 在区域C中,只有当当前操作条件在特殊区域C中并且检测到减速条件时,排气控制阀的打开被调节到中间开口而不是最大开度。 在第一增压器的涡轮机充分旋转的情况下,可以从区域C到区域B转移。(C)2010,JPO和INPIT