CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    1.
    发明申请
    CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机控制装置

    公开(公告)号:US20130340423A1

    公开(公告)日:2013-12-26

    申请号:US13635279

    申请日:2011-03-16

    Inventor: Takashi Tsunooka

    Abstract: An object of this invention is to accurately control an exhaust air-fuel ratio, even when a WGV (waste gate valve) is operating. An ECU 60 is equipped with a turbine passing path constant At that corresponds to a time required for exhaust gas to flow to an air-fuel ratio sensor 56 via a turbine 36a of a turbosupercharger 36, and a bypass path constant Ab that corresponds to a time required for exhaust gas to flow to the air-fuel ratio sensor 56 via a bypass passage 38. The ECU 60 calculates first and second fuel injection correction amounts Δt and Δb in which the path constants At and Ab are reflected, respectively. When executing air-fuel ratio feedback control, the ECU 60 selects one of the fuel injection correction amounts Δt and Δb based on at least an open or closed state of the WGV 40, and corrects a fuel injection amount using the selected fuel injection correction amount. It is thus possible to appropriately compensate for differences in exhaust path lengths and air-fuel ratio fluctuations that arise due to opening or closing of the WGV 40.

    Abstract translation: 本发明的目的是即使在WGV(废气闸阀)工作时也能够精确地控制排气空燃比。 ECU60配备有涡轮通过路径常数,其对应于排气通过涡轮增压器36的涡轮36a流向空燃比传感器56所需的时间,以及对应于涡轮增压器36的旁路路径常数Ab 废气通过旁路通路38流向空燃比传感器56所需的时间.ECC 60计算分别反映路径常数ΔA和Ab的第一和第二燃料喷射校正量Deltat和Deltab。 在执行空燃比反馈控制时,ECU60至少基于WGV40的打开或关闭状态选择燃料喷射修正量Deltat和Deltab中的一个,并且使用所选择的燃料喷射校正量来校正燃料喷射量 。 因此,可以适当地补偿由于WGV 40的打开或关闭而引起的排气路径长度和空燃比波动的差异。

    Control apparatus and control method for internal combustion engine
    2.
    发明授权
    Control apparatus and control method for internal combustion engine 有权
    内燃机控制装置及控制方法

    公开(公告)号:US08393313B2

    公开(公告)日:2013-03-12

    申请号:US13162221

    申请日:2011-06-16

    Abstract: A control apparatus and control method is provided for an internal combustion engine that includes a vaporized fuel tank in which vaporized fuel is stored, and a normally-closed vaporized fuel supply valve that opens and closes a connecting portion between the vaporized fuel tank and a surge tank. This apparatus and method produce vaporized fuel by injecting fuel into the tank while the vaporized fuel supply valve is closed while the engine is operating, then open the vaporized fuel supply valve at engine startup and supply the vaporized fuel stored in the tank to the surge tank. If there is no vaporized fuel remaining in the vaporized fuel tank when the engine stops, vacuum is generated in the vaporized fuel tank by temporarily opening the vaporized fuel supply valve before the engine stops. Vaporized fuel is then produced by injecting fuel into the vaporized fuel tank in this vacuum state.

    Abstract translation: 提供一种用于内燃机的控制装置和控制方法,所述内燃机包括蒸发燃料的汽化燃料箱,其中储存蒸发燃料;以及常闭汽化燃料供给阀,其将所述汽化燃料箱与喘振之间的连接部分打开和关闭 坦克。 该装置和方法通过在发动机运转时关闭燃料燃料供给阀的同时将燃料喷射到罐中而产生汽化燃料,然后在发动机起动时打开汽化燃料供给阀并将储存在罐中的蒸发燃料供应到缓冲罐 。 如果在发动机停止时在蒸发的燃料箱中没有蒸发的燃料残留,则在发动机停止之前暂时打开蒸发的燃料供给阀,在蒸发的燃料箱中产生真空。 然后通过在该真空状态下将燃料喷射到蒸发的燃料箱中来产生汽化燃料。

    Multifuel internal combustion engine
    3.
    发明授权
    Multifuel internal combustion engine 有权
    多功能内燃机

    公开(公告)号:US08113186B2

    公开(公告)日:2012-02-14

    申请号:US12527650

    申请日:2008-02-04

    Abstract: A multifuel internal combustion engine in which single low boiling point component fuel and at least one kind of fuel having properties different from those of the single low boiling point component fuel are introduced into a combustion chamber CC separately or together thereby operating the multifuel internal combustion engine, includes lubricant-oil temperature detecting unit means (temperature sensor 91) that detects a temperature of lubricant oil, or lubricant-oil temperature estimating unit means that estimates the temperature, and purge control unit means (electronic control unit 1) that prohibits purge control by an evaporation gas purge apparatus (evaporation gas passage 42, check valve 43, canister 44, on-off valve 45) or reduces a purge flow rate of evaporation gas in the purge control, when the detected or estimated temperature of the lubricant oil is near a boiling point temperature of the single low boiling point component fuel at which it is necessary to reduce a fuel injection amount from a fuel injection valve to a predetermined amount or less to adjust an air/fuel ratio of the combustion chamber to a target air/fuel ratio.

    Abstract translation: 一种多燃料内燃机,其中单个低沸点组分燃料和至少一种具有与单一低沸点组分燃料不同的性质的燃料分别或一起引入燃烧室CC中,从而操作多元燃料内燃机 包括检测润滑油的温度的润滑油温度检测单元装置(温度传感器91)或估计温度的润滑油温度估计单元装置,以及禁止清洗控制的清洗控制单元装置(电子控制单元1) 通过蒸发气体吹扫装置(蒸发气体通路42,止回阀43,罐44,开关阀45),或者当润滑油的检测或估计的温度为 接近需要减少燃料喷射的单一低沸点组分燃料的沸点温度 从燃料喷射阀到预定量以下的排出量,以将燃烧室的空气/燃料比调节到目标空气/燃料比。

    MULTIFUEL INTERNAL COMBUSTION ENGINE
    5.
    发明申请
    MULTIFUEL INTERNAL COMBUSTION ENGINE 有权
    多功能内燃机

    公开(公告)号:US20100083937A1

    公开(公告)日:2010-04-08

    申请号:US12527650

    申请日:2008-02-04

    Abstract: A multifuel internal combustion engine in which single low boiling point component fuel and at least one kind of fuel having properties different from those of the single low boiling point component fuel are introduced into a combustion chamber CC separately or together thereby operating the multifuel internal combustion engine, includes lubricant-oil temperature detecting unit means (temperature sensor 91) that detects a temperature of lubricant oil, or lubricant-oil temperature estimating unit means that estimates the temperature, and purge control unit means (electronic control unit 1) that prohibits purge control by an evaporation gas purge apparatus (evaporation gas passage 42, check valve 43, canister 44, on-off valve 45) or reduces a purge flow rate of evaporation gas in the purge control, when the detected or estimated temperature of the lubricant oil is near a boiling point temperature of the single low boiling point component fuel at which it is necessary to reduce a fuel injection amount from a fuel injection valve to a predetermined amount or less to adjust an air/fuel ratio of the combustion chamber to a target air/fuel ratio.

    Abstract translation: 一种多燃料内燃机,其中单个低沸点组分燃料和至少一种具有不同于单一低沸点组分燃料的燃料的燃料分别或一起引入燃烧室CC中,从而操作多元燃料内燃机 包括检测润滑油的温度的润滑油温度检测单元装置(温度传感器91)或估计温度的润滑油温度估计单元装置,以及禁止清洗控制的清洗控制单元装置(电子控制单元1) 通过蒸发气体吹扫装置(蒸发气体通路42,止回阀43,罐44,开关阀45),或者当润滑油的检测或估计的温度为 接近需要减少燃料喷射的单一低沸点组分燃料的沸点温度 从燃料喷射阀到预定量以下的排出量,以将燃烧室的空气/燃料比调节到目标空气/燃料比。

    Internal combustion engine including plural cylinders, control apparatus and control method for internal combustion engine including plural cylinders
    6.
    发明授权
    Internal combustion engine including plural cylinders, control apparatus and control method for internal combustion engine including plural cylinders 有权
    包括多个气缸的内燃机,包括多个气缸的内燃机的控制装置和控制方法

    公开(公告)号:US07464693B2

    公开(公告)日:2008-12-16

    申请号:US10867685

    申请日:2004-06-16

    Abstract: A combustion condition for each of plural cylinders included in an internal combustion engine is set by the following control that is performed according to an intake air amount in each of the plural cylinders. A reference cylinder is set to a cylinder in which the intake air amount is smallest, and a fuel injection amount for the reference cylinder is set to a fuel injection amount for realizing a stoichiometric air-fuel ratio. The air-fuel ratio in each of the cylinders other than the reference cylinder is set according to the intake air amount in each of the cylinders such that the torque equal to reference torque generated in the reference cylinder is generated. When this setting is performed, air-fuel ratios that are out of a predetermined region in the vicinity of the stoichiometric air-fuel ratio (i.e., air-fuel ratios that are in an avoidance region) are excluded. With respect to a cylinder in which the torque equal to the reference torque cannot be generated only by setting the air-fuel ratio, correction of the ignition timing is further performed so as to suppress a difference between the torque generated in the cylinder and the reference torque.

    Abstract translation: 包括在内燃机中的多个气缸中的每一个的燃烧条件通过根据多个气缸中的每个气缸中的进气量执行的以下控制来设定。 将基准气缸设定为吸气量最小的气缸,将基准气缸的燃料喷射量设定为实现理论空燃比的燃料喷射量。 根据每个气缸中的进气量设定与基准气缸以外的各个气缸的空燃比,使得产生与参考气缸中产生的基准转矩相等的转矩。 当执行该设定时,排除在理论空燃比附近(即,避开区域的空燃比)之外的预定区域之外的空燃比。 对于仅通过设定空燃比而不能产生与基准转矩相等的转矩的气缸,进一步进行点火正时的校正,以抑制气缸中产生的转矩和参考点之间的差 扭矩。

    Fuel injection controlling apparatus of internal combustion engine
    9.
    发明授权
    Fuel injection controlling apparatus of internal combustion engine 有权
    内燃机燃油喷射控制装置

    公开(公告)号:US08474437B2

    公开(公告)日:2013-07-02

    申请号:US12673936

    申请日:2008-08-20

    Inventor: Takashi Tsunooka

    Abstract: A fuel injection controlling apparatus (electronic control unit) of an internal combustion engine, which can cause first to fourth fuel injection valves of respective cylinders connected to a fuel delivery pipe to inject a fuel, which is heated after fed from a fuel pump (feed pump), is provided with a fuel pump control unit that stops a drive of the fuel pump (feed pump) until the heated fuel in the fuel delivery pipe is reduced to a predetermined amount or less.

    Abstract translation: 一种内燃机的燃料喷射控制装置(电子控制单元),其可以使与连接到燃料输送管的各个气缸的第一至第四燃料喷射阀喷射燃料,所述燃料从燃料泵(进料 泵)设置有燃料泵控制单元,其停止燃料泵(进料泵)的驱动,直到燃料输送管中的加热燃料减少到预定量或更少。

    Apparatus for detecting air-fuel ratio dispersion abnormality between cylinders of multiple-cylinder internal combustion engine
    10.
    发明授权
    Apparatus for detecting air-fuel ratio dispersion abnormality between cylinders of multiple-cylinder internal combustion engine 有权
    用于检测多缸内燃机气缸之间的空燃比分散异常的装置

    公开(公告)号:US08417438B2

    公开(公告)日:2013-04-09

    申请号:US13319613

    申请日:2010-12-08

    Inventor: Takashi Tsunooka

    Abstract: An apparatus for detecting dispersion abnormality in air-fuel ratio between cylinders of a multiple-cylinder engine, including a waste gate passage which bypasses a turbine of a turbocharger, a waste gate valve which opens/closes the passage, an air-fuel ratio sensor installed in an exhaust passage on the downstream of an outlet of the passage, an abnormality detecting unit for detecting dispersion abnormality in air-fuel ratio between cylinders by comparing a parameter value correlating with a fluctuation of the sensor value with a predetermined threshold, and an exhaust speed increasing unit for increasing exhaust gas speed. The apparatus further includes a controller which controls the valve and the exhaust speed increasing unit, and the controller opens, when dispersion abnormality in the air-fuel ratio between cylinders is detected, the valve and increases exhaust speed by the exhaust speed increasing unit.

    Abstract translation: 一种用于检测多缸发动机的气缸之间的空燃比的分散异常的装置,包括绕过涡轮增压器的涡轮的废气通道,打开/关闭通道的废气门阀,空燃比传感器 安装在通道出口下游的排气通道中,用于通过将与传感器值的波动相关联的参数值与预定阈值进行比较来检测气缸之间的空燃比的色散异常的异常检测单元,以及 排气速度增加单元,用于提高废气速度。 该装置还包括控制阀和排气速度增加单元的控制器,并且当检测到气缸之间的空燃比的分散异常时,控制器打开,并且通过排气速度增加单元提高排气速度。

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