公开(公告)号：US08229654B2

公开(公告)日：2012-07-24

申请号：US12678915

申请日：2008-09-19

申请人： Jun Tahara ,  Mitsuhiro Nada ,  Hiroki Kinuhata

发明人： Jun Tahara ,  Mitsuhiro Nada ,  Hiroki Kinuhata

IPC分类号： B60T7/12 ,  G05D1/00

CPC分类号： F02D31/009 ,  F02D41/22 ,  F02D2041/227 ,  F02D2250/26 ,  Y02T10/40

摘要： An output restriction device for restricting engine output when a drive power output system for an internal combustion engine has an abnormality is provided. The output restriction device includes an abnormality detection unit, and initial restriction unit, and a secondary restriction unit. The abnormality restriction unit detects an abnormality in the drive power output system. The initial restriction unit restricts a tolerable range of the engine output to a first restriction region when the abnormality detection unit detects an abnormality in the drive power output system. A secondary restriction unit shifts the tolerable range of the engine output to a second restriction region, which has an upper limit lower than that of the first restriction region, in accordance with an operation history of the engine after the initial restriction unit restricts the tolerable range of the engine output to the first restriction region.

摘要翻译： 提供一种用于当内燃机的驱动力输出系统异常时用于限制发动机输出的输出限制装置。 输出限制装置包括异常检测单元和初始限制单元以及次级限制单元。 异常限制部检测驱动力输出系统的异常。 当异常检测单元检测到驱动功率输出系统中的异常时，初始限制单元将发动机输出的容许范围限制到第一限制区域。 次级限制单元根据发动机的运行历史，在初始限制单元限制容许范围之后，将发动机输出的可容许范围转移到具有比第一限制区域的上限低的上限的第二限制区域 的发动机输出到第一限制区域。

公开(公告)号：US06973785B2

公开(公告)日：2005-12-13

申请号：US10607605

申请日：2003-06-27

申请人： Tsutomu Umehara ,  Masaaki Yamaguchi ,  Hiroki Kinuhata

发明人： Tsutomu Umehara ,  Masaaki Yamaguchi ,  Hiroki Kinuhata

IPC分类号： F02B37/00 ,  F02B3/06 ,  F02B29/04 ,  F02B37/22 ,  F02D21/08 ,  F02D23/00 ,  F02D41/00 ,  F02D41/10 ,  F02M25/07 ,  F02M31/04 ,  F02B33/44

CPC分类号： F02D41/005 ,  F02B3/06 ,  F02B29/0406 ,  F02B29/0493 ,  F02D41/0007 ,  F02D41/107 ,  F02D2041/1431 ,  F02M26/05 ,  F02M26/10 ,  F02M31/042 ,  Y02T10/47

摘要： An engine including a recirculation passage, which connects an exhaust passage to an intake passage, and an EGR valve arranged in the recirculation passage. An electronic control unit (ECU) obtains a target opening degree of the EGR valve in accordance with an operating state of the engine and controls the EGR valve so that the opening degree of the EGR valve becomes equal to the obtained target opening degree. When opening the EGR valve from a fully closed state, the ECU restricts the opening degree of the EGR valve to a restricted opening degree that is smaller than the target opening degree during a predetermined delay time before actuating the EGR valve to the target opening degree. This prevent exhaust gas from being excessively recirculated to the intake passage even if the difference between the exhaust pressure and the intake pressure is too large when starting EGR.

摘要翻译： 包括将排气通道连接到进气通道的再循环通道和布置在再循环通道中的EGR阀的发动机。 电子控制单元（ECU）根据发动机的运转状态求出EGR阀的目标开度，控制EGR阀使得EGR阀的开度变得等于获得的目标开度。 当从完全关闭状态打开EGR阀时，ECU在将EGR阀启动到目标开度之前将预定延迟时间期间将EGR阀的开度限制在比目标开度小的限制开度。 即使当EGR开始时排气压力和进气压力之间的差异太大，也能够防止排气过度再循环到进气通道。

公开(公告)号：US20100211286A1

公开(公告)日：2010-08-19

申请号：US12678915

申请日：2009-07-13

申请人： Jun Tahara ,  Mitsuhiro Nada ,  Hiroki Kinuhata

发明人： Jun Tahara ,  Mitsuhiro Nada ,  Hiroki Kinuhata

IPC分类号： F02D45/00

CPC分类号： F02D31/009 ,  F02D41/22 ,  F02D2041/227 ,  F02D2250/26 ,  Y02T10/40

摘要： An output restriction device for restricting engine output when a drive power output system for an internal combustion engine has an abnormality is provided. The output restriction device includes an abnormality detection unit, and initial restriction unit, and a secondary restriction unit. The abnormality restriction unit detects an abnormality in the drive power output system. The initial restriction unit restricts a tolerable range of the engine output to a first restriction region when the abnormality detection unit detects an abnormality in the drive power output system. A secondary restriction unit shifts the tolerable range of the engine output to a second restriction region, which has an upper limit lower than that of the first restriction region, in accordance with an operation history of the engine after the initial restriction unit restricts the tolerable range of the engine output to the first restriction region.

摘要翻译： 提供一种用于当内燃机的驱动力输出系统异常时用于限制发动机输出的输出限制装置。 输出限制装置包括异常检测单元和初始限制单元以及次级限制单元。 异常限制部检测驱动力输出系统的异常。 当异常检测单元检测到驱动功率输出系统中的异常时，初始限制单元将发动机输出的容许范围限制到第一限制区域。 次级限制单元根据发动机的运行历史，在初始限制单元限制容许范围之后，将发动机输出的可容许范围转移到具有比第一限制区域的上限低的上限的第二限制区域 的发动机输出到第一限制区域。