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    • 31. 发明专利
    • Exhaust gas recirculation device for internal combustion engine
    • 用于内燃机的排气回收装置
    • JP2008309030A
    • 2008-12-25
    • JP2007156433
    • 2007-06-13
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKATANI KOICHIROTOMOTA AKITOSHIISHIYAMA SHINOBUFURUHASHI MICHIOONO TOMOYUKIOGO TOMOYOSHIHISATAKA YOSHIHIRO
    • F02D21/08F02D13/02F02D23/00F02D43/00F02M25/07
    • F02D21/08F02B29/04F02D13/0203F02D41/0062F02D41/0072F02D2041/001F02M26/01F02M26/07Y02T10/18Y02T10/47
    • PROBLEM TO BE SOLVED: To provide technology inhibiting deviation of intake air temperature from target temperature to the minimum and making an EGR rate satisfactorily following a target value in an exhaust gas recirculation device for an internal combustion engine. SOLUTION: This exhaust gas recirculation device is provided with a turbocharger, a low pressure EGR passage taking part of exhaust gas from an exhaust passage at a downstream of a turbine as low pressure EGR gas and re-circulating the low pressure EGR gas to an intake air passage at an upstream of a compressor, a high pressure EGR passage taking part of exhaust gas from an exhaust passage at an upstream of the turbine as high pressure EGR gas and re-circulating the high pressure EGR gas to an intake air passage at a downstream of the compressor, and a valve timing changing means capable of adjusting internal EGR gas. Feedback control of EGR rate indicating rate of EGR gas in intake air is performed by adjustment of internal EGR gas quantity with using the valve timing changing means when quantity of high pressure EGR gas circulating in the high pressure EGR passage is not greater than first predetermined quantity. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供抑制进气温度与目标温度的偏差达到最小值的技术,并使EGR率满足内燃机的废气再循环装置中的目标值。 解决方案:该排气再循环装置设置有涡轮增压器,低压EGR通路,其将来自涡轮机下游的排气通道的一部分排气作为低压EGR气体并重新循环低压EGR气体 到压缩机上游的进气通道,高压EGR通道,其将来自涡轮机上游的排气通道的一部分排气作为高压EGR气体,并将高压EGR气体再循环到进气口 在压缩机的下游通道,以及能够调节内部EGR气体的气门正时改变装置。 当在高压EGR通道中循环的高压EGR气体的量不大于第一预定量时,通过利用气门正时改变装置调节内部EGR气体量来进行进气中EGR气体的EGR率指示率的反馈控制 。 版权所有(C)2009,JPO&INPIT
    • 32. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2006207409A
    • 2006-08-10
    • JP2005017745
    • 2005-01-26
    • Honda Motor Co Ltd本田技研工業株式会社
    • SASAKI SHIZUOWANG JUNMIN
    • F02D41/02F02D21/08F02D41/04F02M25/07
    • F02D41/0065F02D41/3064F02M26/07F02M26/20F02M26/35Y02T10/47
    • PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine smoothly changing a fuel injection control mode along with increase/decrease in engine load, and suppressing torque fluctuation along with excessive switching in control mode caused by a little load change and switching in control mode. SOLUTION: In shifting from a low temperature combustion control for performing low temperature combustion to a normal combustion control performing normal combustion, when an oxygen amount mo2 in a cylinder reaches a first A* map switch threshold value Oxy1, an A* map used for calculating an air adjusting parameter A* for adjusting an intake air amount is switched from a map for the low temperature combustion control to a map for normal combustion control. Then, while keeping engine output torque approximately constant, the oxygen amount mo2 is increased. When the oxygen amount reaches a first Q* map switch threshold valve Oxy3, a Q* map used for calculating a fuel injection parameter Q* performing a control of fuel injection is switched from the map for the low temperature combustion control to the map for normal combustion control. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供一种用于内燃机的控制装置平稳地改变燃料喷射控制模式以及发动机负载的增加/减少,并且抑制转矩波动以及由少量负载引起的控制模式中的过度切换 改变和切换控制模式。 解决方案:当从用于进行低温燃烧的低温燃烧控制转换为执行正常燃烧的正常燃烧控制时,当气缸中的氧气量mo2达到第一A *映射切换阈值Oxy1时,A *映射 用于计算用于调节进气量的空气调节参数A *从用于低温燃烧控制的地图切换到用于正常燃烧控制的地图。 然后,在保持发动机输出扭矩近似恒定的同时,氧量mo2增加。 当氧量达到第一Q *映射开关阈值阀Oxy3时,用于计算执行燃料喷射控制的燃料喷射参数Q *的Q *映射从低温燃烧控制的映射切换到正常的映射 燃烧控制。 版权所有(C)2006,JPO&NCIPI
    • 33. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2006200460A
    • 2006-08-03
    • JP2005013794
    • 2005-01-21
    • Honda Motor Co Ltd本田技研工業株式会社
    • SASAKI SHIZUOWANG JUNMINNEELY GARY D
    • F02D41/04F02D21/08F02D41/40F02D43/00F02M25/07
    • F02D41/0072F02M26/07F02M26/20F02M26/35Y02T10/47
    • PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine inhibiting a torque variation on changing of an air-fuel ratio by suitably controlling an injector for injecting fuel into a cylinder. SOLUTION: A cylinder oxygen amount mo2 is estimated according to an engine operation state and a fuel injection parameter Q* is calculated according to the in-cylinder oxygen amount mo2. Fuel injection by the injector is controlled according to the fuel injection parameter Q*. When the air-fuel ratio is changed from a lean air-fuel ratio to a rich air-fuel ratio or when it is changed vice versa, the fuel injection parameter Q* in the transition of the air-fuel ratio is set to smoothly change according to an objective fuel injection parameter Q*tgt and an objective in-cylinder oxygen amount mo2tgt after the change of the air-fuel ratio and to an initial fuel injection parameter Q*ini and an initial in-cylinder oxygen amount mo2ini before the change (S97-S99). COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过适当地控制用于将燃料喷射到气缸中的喷射器来提供内燃机的控制装置,其抑制空燃比变化的转矩变化。 解决方案:根据发动机运转状态来估计汽缸氧量mo2,根据缸内氧量mo2计算燃料喷射参数Q *。 根据燃料喷射参数Q *控制喷射器的燃油喷射。 当空燃比从稀空燃比变为浓空燃比时,或反之亦然时,空燃比的转变中的燃料喷射参数Q *被设定为平滑地变化 根据目标燃料喷射参数Q * tgt和空燃比改变后的目标缸内氧量mo2tgt以及改变前的初始燃料喷射参数Q * ini和初始缸内氧量mo2ini (S97-S99)。 版权所有(C)2006,JPO&NCIPI
    • 34. 发明专利
    • Internal combustion engine
    • 内燃机
    • JP2006037745A
    • 2006-02-09
    • JP2004214687
    • 2004-07-22
    • Toyota Motor Corpトヨタ自動車株式会社
    • UCHIDA DAISUKENAKADA ISAMU
    • F02M25/07F02D21/08F02D23/00
    • F02M26/07F02B29/0406F02M26/15F02M26/36
    • PROBLEM TO BE SOLVED: To provide an internal combustion engine which includes a supercharger and recirculates to the intake side reformed gas generated by reforming a mixture of exhaust gas and fuel, wherein reduction in volumetric efficiency and deterioration in knocking can be prevented. SOLUTION: The internal combustion engine 1 is equipped with a reformer 20 which reforms the mixture of exhaust gas and fuel by a reforming catalyst to generate the reformed gas Exr including hydrogen, a turbocharger 14 which is installed in an intake passage 3 for pressurizing air supplied to the internal combustion engine 1, an intercooler 12 which is installed in the intake passage 3 and cools air discharged from the turbocharger 14, and a gas circulation passage 10 provided on the intake passage 3 between the turbocharger 14 and the intercooler 12 for circulating the reformed gas Exr. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种内燃机,其包括增压器并且再循环到通过重排废气和燃料的混合物而产生的进气侧重整气体,其中可以防止体积效率的降低和爆震的劣化。 解决方案:内燃机1配备有重整器20,重整器20通过重整催化剂重整废气和燃料的混合物,以产生包括氢的重整气体Exr,涡轮增压器14,其安装在进气通道3中,用于 加压供给到内燃机1的空气,安装在进气通路3中并冷却从涡轮增压器14排出的空气的中间冷却器12以及设置在涡轮增压器14和中间冷却器12之间的进气通路3上的气体循环通路10 用于循环重整气体Exr。 版权所有(C)2006,JPO&NCIPI
    • 35. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2006029171A
    • 2006-02-02
    • JP2004207813
    • 2004-07-14
    • Honda Motor Co Ltd本田技研工業株式会社
    • SASAKI SHIZUOWANG JUNMIN
    • F02D41/04F02D21/08F02D41/14F02D41/38F02D41/40F02D45/00F02M25/07
    • F02D41/0072F02M26/07F02M26/15F02M26/20F02M26/48Y02T10/47
    • PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine, for optimally controlling injection of fuel from an injector even in a transient state of the internal combustion engine. SOLUTION: The control device for an internal combustion engine having an EGR device 14, comprises: intake air amount control means 7, 2 controlling intake air amount Fa taken into a cylinder 3a through an intake system 4; an intake air amount detection means 27 detecting the intake air amount Fa; an EGR gas flow rate estimation means 2 estimating an EGR gas flow rate Fe_hat depending on delay in response of circulation of the EGR gas by the EGR device 14; a means 2 for estimating an oxygen amount mo2 in a cylinder 3a based on the detected intake air amount Fa and the detected EGR gas flow rate Fe_hat; a fuel injection parameter determination means 2 determining a fuel injection parameter Q* based on engine speed Ne of the internal combustion engine and the estimated oxygen amount mo2 in the cylinder; and an injector control means 2 controlling an injector 6 based on the fuel injection parameter Q*. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供一种用于内燃机的控制装置,即使在内燃机的过渡状态下也能最佳地控制来自喷射器的燃料的喷射。 解决方案:具有EGR装置14的内燃机的控制装置包括:进气量控制装置7,2,通过进气系统4控制进入气缸3a的进气量Fa; 检测进气量Fa的进气量检测单元27; EGR气体流量估计装置2根据由EGR装置14的EGR气体的循环响应的延迟来估计EGR气体流量Fe_hat; 基于检测到的进气量Fa和检测到的EGR气体流量Fe_hat来估计气缸3a中的氧量mo2的装置2; 燃料喷射参数确定装置2,基于内燃机的发动机转速Ne和气缸中的估计氧气量mo2确定燃料喷射参数Q *; 以及基于燃料喷射参数Q *控制喷射器6的喷射器控制装置2。 版权所有(C)2006,JPO&NCIPI