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    • 2. 发明申请
    • Abnormality determination apparatus and method for blow-by gas feedback device, and engine control unit
    • 用于窜气反馈装置和发动机控制单元的异常确定装置和方法
    • US20080058994A1
    • 2008-03-06
    • US11896341
    • 2007-08-31
    • Masaki TsudaAtsushi IzumiuraEisaku GosyoHirofumi Hara
    • Masaki TsudaAtsushi IzumiuraEisaku GosyoHirofumi Hara
    • G05D7/00F02M35/10G01M19/00
    • F02D41/221F02D41/18F02M25/06F02M26/53
    • An abnormality determination apparatus and method for a blow-by gas feedback device, and an engine control unit are provided for improving the accuracy of abnormality determination even when an intake air amount controller is provided in an intake system at a location downstream of a joint of a blow-by gas passage. The blow-by gas feedback device feeds a blow-by gas back to an intake system of an internal combustion engine through a blow-by gas passage connected to the intake system through a joint. The abnormality determination apparatus comprises an intake air amount sensor provided in the intake system at a location upstream of the joint for detecting an intake air amount, an intake air amount controller provided in the intake system at a location downstream of the joint for controlling the intake air amount, and an ECU for determining an abnormality of the blow-by gas feedback device based on the intake air amount detected by the intake air amount sensor after the intake air amount has changed due to the operation of the intake air amount controller.
    • 提供了一种用于窜气反馈装置的异常判定装置和方法以及发动机控制单元,用于提高异常判定的精度,即使当进气系统中在进气系统中的下游位置处的进气系统中 一个窜气通道。 窜气反馈装置通过连接到进气系统的窜气通道将窜气输送回内燃机的进气系统。 异常判定装置包括:进气系统,设置在进气系统的上游侧的位置处,用于检测进气量;进气系统,其设置在进气系统的下游位置,用于控制进气口 空气量,以及用于根据进气量控制器的操作使进气量传感器检测到的进气量由进气量控制器的运转而改变后,根据由进气量传感器检测到的进气量来判定窜气反馈装置的异常的ECU。
    • 3. 发明授权
    • Abnormality determination apparatus and method for blow-by gas feedback device, and engine control unit
    • 用于窜气反馈装置和发动机控制单元的异常确定装置和方法
    • US07509210B2
    • 2009-03-24
    • US11896341
    • 2007-08-31
    • Masaki TsudaAtsushi IzumiuraEisaku GosyoHirofumi Hara
    • Masaki TsudaAtsushi IzumiuraEisaku GosyoHirofumi Hara
    • F01M13/00
    • F02D41/221F02D41/18F02M25/06F02M26/53
    • An abnormality determination apparatus and method for a blow-by gas feedback device, and an engine control unit are provided for improving the accuracy of abnormality determination even when an intake air amount controller is provided in an intake system at a location downstream of a joint of a blow-by gas passage. The blow-by gas feedback device feeds a blow-by gas back to an intake system of an internal combustion engine through a blow-by gas passage connected to the intake system through a joint. The abnormality determination apparatus comprises an intake air amount sensor provided in the intake system at a location upstream of the joint for detecting an intake air amount, an intake air amount controller provided in the intake system at a location downstream of the joint for controlling the intake air amount, and an ECU for determining an abnormality of the blow-by gas feedback device based on the intake air amount detected by the intake air amount sensor after the intake air amount has changed due to the operation of the intake air amount controller.
    • 提供了一种用于窜气反馈装置的异常判定装置和方法以及发动机控制单元,用于提高异常判定的精度,即使当进气系统中在进气系统中的下游位置处的进气系统中 一个窜气通道。 窜气反馈装置通过连接到进气系统的窜气通道将窜气输送回内燃机的进气系统。 异常判定装置包括:进气系统,设置在进气系统的上游侧的位置处,用于检测进气量;进气系统,其设置在进气系统的下游位置,用于控制进气口 空气量,以及用于根据进气量控制器的操作使进气量传感器检测到的进气量由进气量控制器的运转而改变后,根据由进气量传感器检测到的进气量来判定窜气反馈装置的异常的ECU。
    • 4. 发明授权
    • Abnormality-determining device and method for turbo-supercharger, and engine control unit
    • 用于涡轮增压器的异常确定装置和方法以及发动机控制单元
    • US08117840B2
    • 2012-02-21
    • US12047575
    • 2008-03-13
    • Hirofumi HaraMasaki Tsuda
    • Hirofumi HaraMasaki Tsuda
    • F02D23/00F02B39/16
    • F02B37/24F02B29/0406F02B39/16F02D41/0007F02D41/221F02D2200/0406F02M26/05F02M26/53Y02T10/144
    • An abnormality-determining device for a turbo-supercharger, which is capable of detecting abnormalities, including response delay of a movable member, with accuracy. A turbo-supercharger provided in an internal combustion engine has variable vanes 8c arranged in an exhaust turbine, for changing an area of a nozzle thereof. An abnormality-determining device stops supply of fuel to the engine, when the engine is in a predetermined operating condition, actuates the variable vanes, after actuating the same toward one of an open side and a closed side, toward the other of the sides, during the stoppage of fuel supply, detects a supercharging parameter indicative of a degree of supercharging by the turbo-supercharger, and determines abnormality of the turbo-supercharger based on a change in the supercharging parameter detected during the actuation of the movable vanes.
    • 一种用于涡轮增压器的异常判定装置,其能够精确地检测包括可动构件的响应延迟的异常。 设置在内燃机中的涡轮增压器具有布置在排气涡轮机中的可变叶片8c,用于改变其喷嘴的面积。 异常判定装置停止向发动机供给燃料,当发动机处于规定的运转状态时,使可变叶片在朝向另一侧朝向开放侧和封闭侧的一方致动后, 在燃料供给停止期间,检测表示涡轮增压器的增压度的增压参数,并且基于在可动叶片的致动期间检测到的增压参数的变化来确定涡轮增压器的异常。
    • 7. 发明授权
    • Air bypass valve failure detection device in supercharging device for engine
    • 发动机增压装置中的旁通阀故障检测装置
    • US07578128B2
    • 2009-08-25
    • US11878117
    • 2007-07-20
    • Atsuhiro MiyauchiHirofumi HaraKazuhiko ImamuraYoshinori Andou
    • Atsuhiro MiyauchiHirofumi HaraKazuhiko ImamuraYoshinori Andou
    • F02B33/00
    • F02D41/221F02B37/16F02D41/0007F02D2200/0406Y02T10/144
    • An air bypass valve failure detecting device outputs an opening command to an air bypass valve when a throttle valve suddenly closes, thereby prevent surging from occurring in a second intake passage between a turbocharger and a throttle valve. When the opening command is outputted to the air bypass valve, failure detection for the air bypass valve is permitted only if an intake air quantity of an engine immediately before a closing command is changed to the opening command is equal to or larger than a predetermined value. Thus, it is possible to prevent the failure detecting device from erroneously determining that the air bypass valve is normal although valve closing failure of the air bypass valve has occurred. This is because, when the intake air quantity is smaller than the predetermined value, surging does not occur in the second intake passage even if the valve closing failure of the airy bypass valve has occurred.
    • 当节气门突然闭合时,空气旁通阀故障检测装置向空气旁通阀输出打开命令,从而防止在涡轮增压器和节流阀之间的第二进气通道中发生喘振。 当打开命令被输出到空气旁通阀时,只有紧接关闭命令之前的发动机的进气量改变为打开命令,才允许空气旁通阀的故障检测等于或大于预定值 。 因此,尽管发生了空气旁通阀的关闭故障,但是可以防止故障检测装置错误地确定空气旁通阀是正常的。 这是因为,当进气量小于预定值时,即使发生通风旁通阀的关闭故障,也不会在第二进气通道中产生喘振。