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    • 1. 发明授权
    • Engine control apparatus
    • 发动机控制装置
    • US08267076B2
    • 2012-09-18
    • US12826367
    • 2010-06-29
    • Shinji NakagawaKazuhiko KanetoshiKouzou KatogiTakanobu IchiharaMinoru Ohsuga
    • Shinji NakagawaKazuhiko KanetoshiKouzou KatogiTakanobu IchiharaMinoru Ohsuga
    • F02D41/10
    • F02D41/0085F02D37/02F02D41/1454F02D41/1497F02D2200/1012
    • The present invention performs correction appropriately according to errors in the fuel system and air system respectively and corrects both variations in the air-fuel ratio and torque. When the difference between a target air-fuel ratio and a real air-fuel ratio is equal to or below a predetermined value when feedback control based on the air-fuel ratio of an exhaust manifold 10A is in progress, the air-fuel ratio of a cylinder cyl—1 having the largest variation of angular acceleration is corrected to the rich side, for example, by increasing the amount of fuel. Angular acceleration per cylinder is then detected again and when the variation in angular acceleration among cylinders is not eliminated, it is judged that there is an error in the amount of air control of the cylinder having the largest variation and the amount of air, amount of fuel, ignition timing or the like are corrected.
    • 本发明分别根据燃料系统和空气系统中的误差适当地进行校正,并且校正空燃比和扭矩的变化。 当在进行基于排气歧管10A的空燃比的反馈控制的情况下,当目标空燃比与实际空燃比之间的差等于或低于预定值时,空燃比 具有最大的角加速度变化的气缸cyl-1例如通过增加燃料量被校正到浓侧。 再次检测每缸的角加速度,当不消除气缸之间角加速度的变化时,判断为具有最大变化量和空气量的气缸的空气控制量存在误差, 燃料,点火正时等。
    • 3. 发明申请
    • EGR Flow Rate Control Apparatus of Internal Combustion Engine
    • 内燃机EGR流量控制装置
    • US20110017179A1
    • 2011-01-27
    • US12829080
    • 2010-07-01
    • Takanobu ICHIHARAKazuhiko KanetoshiKouzou KatogiHiroaki Hoshika
    • Takanobu ICHIHARAKazuhiko KanetoshiKouzou KatogiHiroaki Hoshika
    • F02B47/08
    • F02D41/0072F02D41/28F02D2041/0075F02D2041/141F02D2041/1432F02M26/05F02M26/40F02M26/47Y02T10/47
    • An EGR flow rate control apparatus of an internal combustion engine is provided that can correct with high accuracy an EGR gas flow rate measured by a gas flow rate measurement apparatus in an EGR passage and control with high accuracy a gas flow rate regulating valve to reduce discharge amounts of PM and NOx in exhaust gases. An EGR flow rate control apparatus 10 of an internal combustion engine includes EGR flow channels 16, 20 that communicate exhaust pipe 11 with intake pipe 7, gas flow rate regulating valve 17 installed in EGR flow channels 26, 20 that regulates an EGR gas flow rate, and gas flow rate measurement apparatus 18 that is installed on an intake pipe 7 side with respect to the flow rate regulating valve 17 of EGR flow channels 16 and 20 and that measures an EGR gas flow rate flowing through the EGR flow channels 16 and 20. The EGR flow rate control apparatus 10 includes gas flow rate correction means 45 that corrects the EGR gas flow rate based on a first operating state parameter relating to pressure fluctuations of the intake pipe or exhaust pipe of the internal combustion engine and a second operating state parameter relating to a flow channel resistance of the EGR flow channel.
    • 提供一种内燃机的EGR流量控制装置,其能够高精度地校正由EGR通路中的气体流量测量装置测量的EGR气体流量,并且以高精度控制气体流量调节阀以减少放电 废气中的PM和NOx的量。 内燃机的EGR流量控制装置10包括将排气管11与进气管7连通的EGR流路16,20,安装在EGR流路26,20中的气体流量调节阀17,其调节EGR气体流量 ,以及相对于EGR流路16,20的流量调节阀17安装在进气管7侧并测量流过EGR流路16,20的EGR气体流量的气体流量测量装置18 EGR流量控制装置10包括气体流量校正装置45,其根据与内燃机的进气管或排气管的压力波动相关的第一运转状态参数和第二运转状态来修正EGR气体流量 与EGR流路的流路阻力有关的参数。