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    • 2. 发明专利
    • Fuel injection quantity control device for internal combustion engine
    • 燃油喷射量控制装置内燃机
    • JP2007032343A
    • 2007-02-08
    • JP2005214091
    • 2005-07-25
    • Toyota Motor Corpトヨタ自動車株式会社
    • KOJIMA KAZUNORINAGAI TOSHINARIADACHI NORIYASUKINOSHITA TAKEO
    • F02D41/04F02D41/02F02D41/34F02D45/00
    • F02D41/3094F02D41/047
    • PROBLEM TO BE SOLVED: To make air fuel ratio stably conform to target air fuel ratio by positively controlling values of fuel behavior parameter (remaining ratio Pv, adhesion ratio Rv) used in a fuel behavior model formula by adjustment of injection ratio in a dual injection system provided with a port injection valve and a cylinder injection valve. SOLUTION: This fuel injection quantity control device changes values of fuel behavior parameters Pv, Rv according to port injection ratio R influencing fuel behavior. In this device, basic injection ratio R1 is used as port injection ratio R when values of Pv, Rv in a case where port injection ratio R is set to basic injection ratio R1 depending on an operation condition of the engine is in a stable range necessary for making fuel adhesion quantity value calculated from the fuel behavior model formula "a stable solution converging without vibration". When the values of Pv, Rv are out of the stable range when port injection ratio R is set to R1, the port injection ratio R is changed to value "1" other than basic injection ratio R1 to make the values of Pv, Rv in the stable range. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过积极地控制燃料行为模型公式中使用的燃料行为参数(剩余比例Pv,粘附比Rv)的值,通过调节喷射比例来使空燃比稳定地符合目标空燃比 一个双喷射系统,配有一个喷油阀和一个喷油阀。 解决方案:该燃料喷射量控制装置根据影响燃料性能的喷射比R改变燃料行为参数Pv,Rv的值。 在该装置中,根据发动机的运转状态将端口喷射比率R设定为基本喷射比率R1的情况下的Pv,Rv的值在必要的稳定范围内时,基本喷射比率R1被用作喷射比率R 用于根据燃料行为模型公式“稳定的无振动会聚收敛”计算燃料附着量值。 当端口喷射比R设定为R1时,当Pv,Rv的值超出稳定范围时,除了基本喷射比R1之外,将喷射比R改变为值“1”,使得Pv,Rv的值在 稳定范围。 版权所有(C)2007,JPO&INPIT
    • 3. 发明专利
    • Failure diagnosis device for exhaust emission control system and exhaust emission control system with failure diagnosis function
    • 用于排气控制系统的故障诊断装置和具有故障诊断功能的排气控制系统
    • JP2007009798A
    • 2007-01-18
    • JP2005191391
    • 2005-06-30
    • Toyota Motor Corpトヨタ自動車株式会社
    • KOJIMA KAZUNORISAWADA YUTAKAUCHIDA TAKAHIRO
    • F01N3/20B01D53/94F01N3/24F01N3/26
    • PROBLEM TO BE SOLVED: To accurately diagnose a failure of an exhaust gas flow passage change over means in an exhaust emission control system. SOLUTION: ECU 100 of an engine system 10 can suitably change over a flow passage of an exhaust gas flowing in a catalyst device 300 between a bypass flow passage 320 and a bypassed flow passage 210a by controlling a change over control valve 340. A second temperature sensor 360 is installed in the bypass flow passage 320, and a first temperature sensor 350 is installed on an upstream side of an underfloor catalyst 310 installed on a downstream side of the bypassed flow passage 210a. High and low relation between temperature value detected by the two temperature sensors is alternated according to the selected flow passage. Also, a shape of the bypass flow passage 320 is determined to effectively create this alternation. The ECU 100 diagnoses a failure of the change over control valve 340 based on the relative relation of the two temperature values. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了精确地诊断废气流动通道在废气排放控制系统中改变装置的故障。 解决方案:通过控制控制阀340的变化,发动机系统10的ECU100可以适当地改变在旁通流路320和旁路流路210a之间的催化剂装置300中流动的排气的流路。 第二温度传感器360安装在旁通流路320中,第一温度传感器350安装在安装在旁路流路210a的下游侧的地板下催化剂310的上游侧。 由两个温度传感器检测的温度值之间的高低关系根据选定的流动通道而交替。 此外,确定旁路流路320的形状以有效地产生该交替。 ECU100基于两个温度值的相对关系来诊断控制阀340的变化的故障。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Fuel injection amount control device of internal combustion engine
    • 燃油喷射控制装置内燃机
    • JP2003074392A
    • 2003-03-12
    • JP2001267126
    • 2001-09-04
    • Toyota Motor Corpトヨタ自動車株式会社
    • UEDA KOICHIKAKO JUNICHIKOJIMA KAZUNORI
    • F02D43/00F02D13/02F02D41/04
    • PROBLEM TO BE SOLVED: To provide a fuel injection amount control device of an internal combustion engine, capable of properly deciding fuel amount to be injected by accurately presuming a fuel sticking amount.
      SOLUTION: This fuel injection amount control device uses a model presuming the fuel amount sticking to an structural member of an intake system immobile relatively to an combustion chamber 25 and an intake valve (that is, an intake passage structural member), and a model presuming the fuel amount sticking to an intake flow control member represented by a swirl control valve 44. The fuel amount which sticks to the intake passage structural member and the fuel amount which sticks to an intake flow control member are separately presumed, and the fuel amount injected from an injector 39 is decided based on the presumed amount of the sticking fuel. Since the sticking behavior of the fuel is different in the intake passage structural member and the intake flow control member, the entire amount of the sticking fuel is accurately presumed by presuming the fuel amount sticking to them, and the fuel injection amount is decided properly.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种内燃机的燃料喷射量控制装置,能够通过精确地设定燃料附着量来适当地判定要喷射的燃料量。 解决方案:该燃料喷射量控制装置使用假定燃料量粘附到相对于燃烧室25和进气阀(即,进气通道结构构件)固定的进气系统的结构构件的模型,以及假设模型 燃料量粘附在由旋流控制阀44表示的进气流量控制部件上。附加到进气通道结构部件的燃料量和附着在进气流量控制部件上的燃料量被分开推定,并且喷射的燃料量 基于所推测的燃料喷射量来决定喷射器39的位置。 由于进气通道结构部件和进气流量控制部件的燃料的粘着性不同,所以通过假设粘附在燃料量上的燃料量准确地推测出粘附燃料的总量,并适当地决定燃料喷射量。
    • 6. 发明专利
    • Fuel injection control unit of internal combustion engine
    • 内燃机燃油喷射控制单元
    • JP2006257917A
    • 2006-09-28
    • JP2005073735
    • 2005-03-15
    • Toyota Motor Corpトヨタ自動車株式会社
    • KINOSHITA TAKEONAGAI TOSHINARIADACHI NORIYASUKOJIMA KAZUNORI
    • F02D41/04F02D45/00
    • PROBLEM TO BE SOLVED: To optimally control the fuel amount fed into a cylinder by raising the precision in a model calculation in consideration of a deposit adhering to an injector.
      SOLUTION: The deposit amount of a cylinder injector 42 is calculated using a tip temperature Tdinj of the calculated cylinder injector 42 (step 102). The values of a cylinder adhesion ratio and a residual ratio are selected corresponding to the deposit amount (steps 106 and 108). The deposit amount of a port injector 40 is calculated using a tip temperature Tpinj of the calculated port injector 40 (step 112). The values of port and valve adhesion ratio and residual ratio are selected corresponding to the deposit. The fuel injection amounts of each injector 40 and 42 are calculated using selected each adhesion ratio and each residual ratio (step 122).
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:考虑到附着在喷射器上的沉积物,通过提高模型计算中的精度来最佳地控制进入气缸的燃料量。 解决方案:使用计算出的气缸喷射器42的尖端温度Tdinj计算气缸喷射器42的沉积量(步骤102)。 对应于沉积量选择气缸附着率和残留比的值(步骤106和108)。 使用所计算的端口喷射器40的尖端温度Tpinj计算端口喷射器40的沉积量(步骤112)。 根据沉积物选择端口和阀门附着率和残留率的值。 每个喷射器40和42的燃料喷射量使用选择的每个粘附比和每个残留比来计算(步骤122)。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Fuel injection quantity control device for internal combustion engine
    • 燃油喷射量控制装置内燃机
    • JP2006161766A
    • 2006-06-22
    • JP2004357610
    • 2004-12-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • KOJIMA KAZUNORINAGAI TOSHINARIKINOSHITA TAKEO
    • F02D41/34F02D41/02F02D41/04F02D45/00
    • F02D41/047F02D41/3094
    • PROBLEM TO BE SOLVED: To provide a fuel injection quantity control device for an internal combustion engine capable of preventing the occurrence of a phenomenon that fuel adhering to an intake system flows in a droplet state into a combustion chamber (a droplet fuel inflow phenomenon). SOLUTION: This device is applied to the internal combustion engine provided with a dual injection system equipped with a cylinder injection valve and a port injection valve for every cylinder. The device determines that the droplet fuel inflow phenomenon does not occur when the fuel adhesion quantities fwp, fwv are a limit fuel adhesion quantity or less, and sets an injection rate to an optimum cylinder injection rate determined according to the operating state of the engine to determine a port injection quantity fip and a cylinder injection quantity fic. The device determines that there is a possibility of causing the droplet fuel inflow phenomenon when at least one of the fuel adhesion quantities fwp, fwv exceeds the limit fuel adhesion quantity, and fixes the injection rate so that the port injection rate becomes 0%. The actual fuel adhesion quantities fwp, fwv are thereby reduced to respectively become the limit fuel adhesion quantity or less to prevent the occurrence of the droplet fuel inflow phenomenon. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于内燃机的燃料喷射量控制装置,其能够防止粘附到进气系统的燃料以液滴状态流入燃烧室的现象(液滴燃料流入 现象)。

      解决方案:该装置应用于配备有每个气缸的气缸喷射阀和喷嘴阀的双喷射系统的内燃机。 该装置确定当燃料粘附量fwp,fwv是极限燃料粘附量或更小时,不会发生液滴燃料流入现象,并且将注射速率设定为根据发动机的运行状态确定的最佳气缸喷射速率 确定端口喷射量fip和气缸喷射量fic。 当燃料粘附量fwp,fwv中的至少一个超过限制燃料粘附量时,该装置确定存在导致液滴燃料流入现象的可能性,并且将喷射率固定为使得喷射率变为0%。 由此,实际的燃料附着量fwp,fwv分别变为极限燃料粘附量以下,以防止液滴燃料流入现象的发生。 版权所有(C)2006,JPO&NCIPI

    • 10. 发明专利
    • Fuel injection control device of internal combustion engine with supercharger
    • 内燃机燃油喷射控制装置与SUPERCHARGER
    • JP2006220061A
    • 2006-08-24
    • JP2005034067
    • 2005-02-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAGAI TOSHINARIKOJIMA KAZUNORIADACHI NORIYASUKINOSHITA TAKEO
    • F02D41/34F02D41/04F02D45/00
    • Y02T10/44
    • PROBLEM TO BE SOLVED: To optimally control a fuel amount to be injected from an injector by preventing a calculation error resulting from the deterioration of the evaporation characteristics of a fuel from increasing in the calculation of an injected fuel amount by using a fuel behavior model in a fuel injection control device of an internal combustion engine with a supercharger.
      SOLUTION: The fuel amount to be injected from the injector is calculated by using the fuel behavior model obtained by modeling the dynamic behavior of the fuel injected from the injector. A plurality of fuel behavior models with different calculation accuracies are prepared, and a specific fuel behavior model used for the calculation of the fuel injection amount is selected according to the supercharging pressure of the supercharger.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了通过使用燃料来计算喷射燃料量的计算,通过防止由于燃料的蒸发特性的劣化而导致的计算误差的最佳化来控制从喷射器喷射的燃料量 具有增压器的内燃机的燃料喷射控制装置中的行为模型。 解决方案:通过使用通过模拟从喷射器喷射的燃料的动态特性获得的燃料行为模型来计算从喷射器喷射的燃料量。 准备了具有不同计算精度的多个燃料行为模型,并且根据增压器的增压压力选择用于计算燃料喷射量的特定燃料行为模型。 版权所有(C)2006,JPO&NCIPI