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    • 1. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2013221490A
    • 2013-10-28
    • JP2012095754
    • 2012-04-19
    • Toyota Motor Corpトヨタ自動車株式会社
    • TSUKAKOSHI TAKAHIROMATSUDA KAZUHISANAGASAKA KEISUKEMORITA KOJI
    • F02D43/00F01N3/08F02D19/08F02D41/04F02D41/14F02D45/00F02M25/07
    • PROBLEM TO BE SOLVED: To protect an EGR pipe from corrosion, while reducing NOx in exhaust gas by using aqueous gas shift reaction.SOLUTION: An engine 10 includes an EGR passage 36 and an EGR valve 38 or the like. When predetermined execution conditions (A)-(C) meet, an ECU 70 executes an air-fuel ratio slightly rich control. In the air-fuel ratio slightly rich control, while a target air-fuel ratio is set in a predetermined range on a slightly rich side, an air-fuel ratio feedback control is executed, and NOx is reduced by aqueous gas shift reaction. However, in reduction reaction of the NOx, ammonia is generated and ammonia compound may cause corrosion of a pipe of the EGR passage 36. During execution of the air-fuel ratio slightly rich control, the ECU 70 closes the EGR valve 38 to prohibit an EGR control. Therefore, corrosion of the pipe of the EGR passage 36 can be suppressed, while cleaning NOx in exhaust gas.
    • 要解决的问题:为了保护EGR管免受腐蚀,同时通过使用含水气体转换反应来减少废气中的NOx。解决方案:发动机10包括EGR通道36和EGR阀38等。 当预定执行条件(A) - (C)满足时,ECU 70执行空燃比稍微控制。 在空燃比略微控制中,将目标空燃比设定在稍高的一侧的规定范围内时,进行空燃比反馈控制,通过含水气体变换反应来减少NOx。 然而,在NOx的还原反应中,产生氨,氨化合物可能引起EGR通道36的管道的腐蚀。在空燃比稍微控制的执行期间,ECU 70关闭EGR阀38以禁止 EGR控制。 因此,可以在清除废气中的NOx的同时,抑制EGR通路36的管的腐蚀。
    • 2. 发明专利
    • Exhaust gas heating method
    • 排气加热方法
    • JP2013072381A
    • 2013-04-22
    • JP2011212676
    • 2011-09-28
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Toyota Motor Corpトヨタ自動車株式会社
    • MORITA KOJIYAMADA JUNTSUJIMOTO KENICHI
    • F01N3/20F01N3/025F01N3/36
    • PROBLEM TO BE SOLVED: To further improve a quick rise of an exhaust gas temperature since it is difficult to always highly maintain the combustion ratio of fuel, in a conventional exhaust gas heating system.SOLUTION: This method heats exhaust gas guided to an exhaust emission control device 26 from an engine 10 by heating and igniting the fuel supplied to an exhaust passage 23a by supplying the fuel to the exhaust passage 23a on the upstream side of the exhaust emission control device 26, and includes a step S20 of supplying the fuel to the exhaust passage 23a at a first supply rate, a step S22 of determining an ignition state of the fuel supplied to the exhaust passage 23a, and a step S24 of supplying the fuel to the exhaust passage 23a at a second supply rate higher than the first supply rate based on a determining result in the step S22 of determining the ignition state of the fuel.
    • 要解决的问题:为了进一步改善废气温度的快速上升,因为在常规废气加热系统中难以始终高度保持燃料的燃烧比。 解决方案:该方法通过加热并点燃供给到排气通道23a的燃料,将从燃料排出的排气通过供给排气通道23a的排气通过排气通道23a引导到排气排放控制装置26 排气控制装置26,并且包括以第一供给速度向排气通路23a供给燃料的步骤S20,确定供给到排气通路23a的燃料的点火状态的步骤S22以及供给排气通路23a的燃料的步骤S24, 基于确定燃料的点火状态的步骤S22的确定结果,以比第一供给速率高的第二供给速率向排气通路23a供给燃料。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • Fuel alcohol concentration determining device for internal combustion engine
    • 燃油酒精浓度测定装置用于内燃机
    • JP2011144706A
    • 2011-07-28
    • JP2010004100
    • 2010-01-12
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORITA KOJI
    • F02D19/08F02D45/00
    • F02D41/3094F02D19/088F02D41/1456F02D2200/0612Y02T10/36
    • PROBLEM TO BE SOLVED: To accurately determine the alcohol concentration of a fuel used for an internal combustion engine without the need of an alcohol concentration sensor in an internal combustion engine comprising a port injection valve for injecting a fuel into an intake port and a direct injection valve for injecting a fuel into a cylinder. SOLUTION: The injection ratio of the fuel injection amount from a port injection valve 38 and the fuel injection amount from a direct injection valve 70 is obtained. In the case the engine load is changed, the engine load change amount is obtained. Temporary fluctuation of the exhaust air-fuel ratio accompanying the engine load change is sensed so that the fluctuation peak amount is obtained. Then, the alcohol concentration of the fuel currently used by the engine is determined by applying the engine load change amount, the fluctuation peak value of the exhaust air-fuel ratio corresponding thereto, and the injection ratio in this case to a determination model for the fuel alcohol concentration. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了精确地确定用于内燃机的燃料的酒精浓度,而不需要在内燃机中使用酒精浓度传感器,所述内燃机包括用于将燃料喷射到进气口中的喷嘴阀, 用于将燃料喷射到气缸中的直接喷射阀。 解决方案:获得来自端口喷射阀38的燃料喷射量的喷射比和来自直接喷射阀70的燃料喷射量。 在发动机负荷变化的情况下,获得发动机负荷变化量。 检测伴随发动机负荷变化的排气空燃比的临时波动,从而获得波动峰值。 然后,通过将发动机负荷变化量,与其对应的排气空燃比的变动峰值和喷射比率应用于发动机当前使用的燃料的酒精浓度,确定为 燃油酒精浓度。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Visual fatigue recovery support apparatus for vehicle
    • 视觉疲劳恢复支援装置
    • JP2009268783A
    • 2009-11-19
    • JP2008123180
    • 2008-05-09
    • Toyota Motor Corpトヨタ自動車株式会社
    • ATSUMI BUNJIAKUTSU MASAKAZUMORITA KOJI
    • A61H5/00A61B3/113A61B5/16
    • PROBLEM TO BE SOLVED: To provide a visual fatigue recovery support apparatus for vehicles performing an effective recovery support operation according to fatigue factors when a driver has the vidual fatigue due to various fatigue factors. SOLUTION: This visual fatigue recovery support apparatus 1 for vehicles includes state detection means 10, 18 and 20 for detecting the states of the eyes of a driver, an estimation means 74 estimating the fatigue degree of the driver's eyes according to fatigue factors based on the outputs of the state detection means, recovery support means 20 and 30 performing support operations for recovering the visual fatigue of the driver, and an operation control means 76 operating the recovery support means based on the visual fatigue degree for every fatigue factor estimated by the estimation means. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为驾驶员由于各种疲劳因素引起的虚拟疲劳时根据疲劳因素提供用于执行有效恢复支持操作的车辆的视觉疲劳恢复支持装置。 解决方案:用于车辆的视觉疲劳恢复支援装置1包括用于检测驾驶员的眼睛状态的状态检测装置10,18和20,估计装置74根据疲劳因素估计驾驶员的眼睛的疲劳程度 基于状态检测装置的输出,恢复支持装置20和30执行用于恢复驾驶员的视觉疲劳的支持操作;以及操作控制装置76,基于估计的每个疲劳因子的视觉疲劳程度来操作恢复支持装置 通过估计手段。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2007285240A
    • 2007-11-01
    • JP2006115277
    • 2006-04-19
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORITA KOJI
    • F02D41/34F02D41/04F02D45/00
    • Y02T10/44
    • PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine reducing discharged unburnt fuel, when fuel injection is divided into synchronous injection and asynchronous injection.
      SOLUTION: The control device has a fuel injection valve 14 injecting fuel in an intake passage 8 of the internal combustion engine 1, and makes a fuel injection valve 14 perform injection by dividing the fuel injection into the asynchronous injection where the injection of fuel to be injected per one cycle is completed before opening the intake valve 10 and the synchronous injection where the fuel injection is completed while the intake valve 10 is opened. Injection distributions of the asynchronous injection and synchronous injection are set depending on a cooling water temperature relating to a wall surface temperature of the intake passage 8.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:当燃料喷射被分为同步喷射和异步喷射时,提供一种用于减少排出的未燃燃料的内燃机的控制装置。 解决方案:控制装置具有在内燃机1的进气通道8中喷射燃料的燃料喷射阀14,并且使得燃料喷射阀14通过将燃料喷射分成异步喷射来进行喷射,其中喷射 在打开进气门10和进气阀10打开之前完成燃料喷射的同步喷射之前完成在每个循环中喷射的燃料。 异步喷射和同步喷射的喷射分布根据与进气通道8的壁面温度相关的冷却水温度来设定。版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Control device of variable cylinder engine
    • 可变气缸发动机的控制装置
    • JP2006183556A
    • 2006-07-13
    • JP2004377499
    • 2004-12-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORITA KOJISONODA YUKIHIRO
    • F02D13/06F02D17/02F02D41/02F02D41/04F02D41/34F02D43/00F02M63/00
    • F02D41/3094F02D41/0087F02D2041/001
    • PROBLEM TO BE SOLVED: To restrain the formation of a lean state of the exhaust air-fuel ratio, when switching to the whole cylinder operation from cylinder reduction operation, in a variable cylinder engine having a cylinder injection injector and a port injection injector.
      SOLUTION: This control device has a changing means for changing the valve opening timing of an intake valve of the engine, and a switching control means for switching an injection form so as to perform only port injection (Step S11) when switching to the whole cylinder operation from the cylinder reduction operation (Yes in Step S10) and controlling so as to delay the valve opening timing of the intake valve (Step S12). An intake air flow of a relatively high flow speed is provided simultaneously when starting valve opening of the intake valve, and fuel injected into a port by an air current of this high flow speed, flows in a cylinder combustion chamber while restraining sticking to an intake port wall surface.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题为了抑制排气空燃比的贫化状态的形成,在从气缸减速运转切换到整缸的运转时,在具有气缸喷射喷射器和端口喷射的可变气缸发动机 注射器。 解决方案:该控制装置具有用于改变发动机的进气门的开阀正时的改变装置和用于切换喷射形式的切换控制装置,以便仅当进行端口喷射时(步骤S11),当切换到 从气缸减速操作(步骤S10中为“是”)的整个气缸操作并且控制以延迟进气门的开阀正时(步骤S12)。 当进气阀开阀时同时提供相对较高流速的进气流,并且通过这种高流速的气流喷射入口中的燃料在气缸燃烧室中流动,同时抑制吸入口 港口墙面。 版权所有(C)2006,JPO&NCIPI
    • 8. 发明专利
    • Device for detecting dispersion of valve opening characteristic among cylinder
    • 用于检测气瓶开口特性的装置
    • JP2006017006A
    • 2006-01-19
    • JP2004193996
    • 2004-06-30
    • Toyota Motor Corpトヨタ自動車株式会社
    • KADOOKA TAKUMORITA KOJINAKASAKA YUKIHIRO
    • F01L1/46F01L1/18F01L13/00F02D13/02F02D41/04F02D41/34F02D43/00F02D45/00F02M63/00
    • F02D41/3094F02D2041/001
    • PROBLEM TO BE SOLVED: To accurately calculate dispersion of a valve opening characteristic of an internal combustion engine with a cylinder fuel injection valve and an intake port fuel injection valve.
      SOLUTION: A device for detecting the dispersion of the valve opening characteristic is provided with a valve opening characteristic setting means (57) for changing the valve opening characteristic of an intake valve (9) of the internal combustion engine (1); a cylinder fuel injection means (61) for injecting fuel into cylinders (5) of the internal combustion engine; an intake passage fuel injection means (62) for injecting the fuel into an intake passage (7) connected to the cylinders; and a valve opening characteristic dispersion detecting means (27) for detecting the dispersion of the valve opening characteristic of each of the cylinders, and detects the dispersion of the valve opening characteristic of each of the cylinders by the valve opening characteristic dispersion detecting means only when only one of the cylinder fuel injection means and the intake passage fuel injection means operates. When the dispersion of the valve opening characteristic is calculated, an index of a combustion state of each of the cylinders detected by an index detecting means may be used.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:准确地计算出具有缸体燃料喷射阀和进气口燃料喷射阀的内燃机的开阀特性的色散。 解决方案:用于检测阀开启特性的偏差的装置设置有用于改变内燃机(1)的进气门(9)的开阀特性的阀开启特性设定装置(57)。 用于将燃料喷射到内燃机的气缸(5)中的气缸燃料喷射装置(61) 用于将燃料喷射到连接到气缸的进气通道(7)中的进气通道燃料喷射装置(62) 以及用于检测每个气缸的开阀特性的偏差的阀开启特性色散检测装置(27),并且仅当阀开启特性色散检测装置检测每个气缸的开阀特性的分散时, 气缸燃料喷射装置和进气通道燃料喷射装置中只有一个工作。 当计算开阀特性的偏差时,可以使用由指标检测装置检测的每个气缸的燃烧状态的指标。 版权所有(C)2006,JPO&NCIPI
    • 9. 发明专利
    • Injection characteristic detecting device for fuel injection valve and fuel injection controller for internal combustion engine equipped with its detecting device
    • 用于燃油喷射装置的注射特性检测装置和用于内部燃烧发动机的燃油喷射控制装置及其检测装置
    • JP2004270531A
    • 2004-09-30
    • JP2003061904
    • 2003-03-07
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORITA KOJI
    • F02M65/00F02D41/04F02D41/12F02D45/00F02M51/00
    • PROBLEM TO BE SOLVED: To provide a fuel injection detecting device for a fuel injection valve capable of precisely detecting a time lag between a driving time and a time when fuel is actually injected with respect to an individual fuel injection valve, and to provide a fuel injection controller for an internal combustion engine, which is equipped with the detecting device and capable of precisely correcting the time lag between the driving time and the time when fuel is actually injected. SOLUTION: The controller 50 detects the time lag between an input time of the driving signal and the actual fuel injection time for the fuel injection valve 35 to injection-supply fuel in a delivery pipe 60 into a gasoline engine by opening drive of a valve body based on a signal of the driving signal. The controller 50 measures the actual fuel injection time when detecting the time lag between the input time of the driving signal and the actual fuel injection time based on a fuel pressure in the delivery pipe 60 changed corresponding to a closing and closing action of the valve body of the fuel injection valve 35. The controller 50 corrects a basic fuel injection amount of the fuel injection valve using the detecting result of the time lag. COPYRIGHT: (C)2004,JPO&NCIPI
    • 要解决的问题:提供一种用于能够精确地检测驾驶时间与燃料相对于单个燃料喷射阀实际喷射的时间之间的时间差的燃料喷射阀的燃料喷射检测装置,并且提供 提供一种配备有检测装置的内燃机的燃料喷射控制器,能够精确地校正驱动时间与实际喷射燃料时间的时间差。 解决方案:控制器50检测驱动信号的输入时间和燃料喷射阀35的实际燃料喷射时间之间的时间差,以将输送管60中的燃料喷射到汽油发动机中,打开驱动 基于驱动信号的信号的阀体。 控制器50根据检测到驱动信号的输入时间与实际燃料喷射时间之间的时间滞后来测量实际的燃料喷射时间,这取决于输送管60中对应于阀体的关闭和关闭动作而改变的燃料压力 控制器50使用时滞的检测结果来校正燃料喷射阀的基本燃料喷射量。 版权所有(C)2004,JPO&NCIPI