-
公开(公告)号：US20090205318A1
公开(公告)日：2009-08-20
申请号：US12305123
申请日：2007-06-18
申请人： Daisuke Shibata , Hiroshi Sawada , Keisuke Fukuoka
发明人： Daisuke Shibata , Hiroshi Sawada , Keisuke Fukuoka
CPC分类号： B01D46/0086 , B01D2279/30 , F01N11/002 , F01N2550/04 , F01N2560/06 , Y02T10/47
摘要： An object of the present invention is to provide a technology that enables to detect a fault of a PM trapper with improved accuracy. According to the present invention, a plurality of temperature sensors 10 are provided in an exhaust passage 9 just downstream of a PM trapper 17 in such a way that their temperature detection elements are positioned on a plane that is perpendicular to an imaginary center axis of the exhaust passage 9. A change in the radial direction temperature distribution of the exhaust gas flowing out of the PM trapper 17 upon occurrence of a fault in the PM trapper 17 is detected from measurement values of the temperature sensors 10, and a fault of the PM trapper 17 is detected based on this radial direction temperature distribution. Since the measurement values of the temperature sensors 10 are unlikely to be affected by the amount of PM deposited on the PM trapper 17, detection of a fault of the PM trapper 17 can be achieved with improved accuracy.
摘要翻译： 本发明的目的是提供一种技术，其能够以提高的精度检测PM捕集器的故障。 根据本发明，多个温度传感器10设置在PM捕集器17正下游的排气通道9中，使得它们的温度检测元件位于垂直于 在PM捕集器17发生故障时从PM捕集器17流出的废气的径向温度分布的变化是从温度传感器10的测量值和PM的故障中检测出的 基于该径向温度分布检测捕集器17。 由于温度传感器10的测量值不太可能受到PM捕集器17上沉积的PM的影响，所以可以提高精度来检测PM捕集器17的故障。
-
公开(公告)号：US08074442B2
公开(公告)日：2011-12-13
申请号：US11629998
申请日：2005-06-21
申请人： Hiroshi Sawada , Daisuke Shibata , Keisuke Fukuoka
发明人： Hiroshi Sawada , Daisuke Shibata , Keisuke Fukuoka
IPC分类号： F01N3/00
CPC分类号： F01N11/002 , F01N3/035 , F01N11/005 , F01N13/009 , F01N2550/04 , F01N2900/0422 , F02D41/0055 , F02D41/12 , Y02T10/47
摘要： An object of the invention is to realize a method of determining an abnormality in a particulate filter (5) capable of trapping and oxidizing particulate matter contained in exhaust gas in which even a minor abnormality in which small quantity of particulate matter can pass through the particulate filter (5) can be determined with a high degree of accuracy. To achieve this object, the abnormality determination method according to the invention, the transition of the inflowing exhaust gas temperature in and the outflowing exhaust gas temperature out of the particulate filter (5) during deceleration operating, and the degree of decrease in the outflowing exhaust gas temperature relative to the inflowing exhaust gas temperature is computed based on the transition. If the degree of decrease exceeds a threshold value, it is determined that the particulate filter (5) is abnormal.
摘要翻译： 本发明的目的是实现一种确定能够捕集和氧化废气中所含的颗粒物质的颗粒过滤器（5）的异常的方法，其中即使少量颗粒物质可以通过颗粒物的微小异常 过滤器（5）可以高精度地确定。 为了达到这个目的，根据本发明的异常判定方法，减速运转时，从微粒过滤器（5）流出的废气温度和排出废气温度的过渡以及排出的排气量的减少程度 基于转变计算相对于流入的废气温度的气体温度。 如果降低程度超过阈值，则确定微粒过滤器（5）异常。
-
公开(公告)号：US20100018186A1
公开(公告)日：2010-01-28
申请号：US12303500
申请日：2007-06-07
申请人： Daisuke Shibata , Hiroshi Sawada , Keisuke Fukuoka
发明人： Daisuke Shibata , Hiroshi Sawada , Keisuke Fukuoka
IPC分类号： F01N11/00
CPC分类号： B01D46/0086 , B01D2279/30 , F01N3/103 , F01N9/007 , F01N11/002 , F01N13/0097 , F01N2550/04 , F01N2560/08 , F01N2900/0412 , F01N2900/1406 , F02B37/00 , Y02T10/47
摘要： An object of the present invention is to provide a technology that enables detection of a fault of a PM trapper with improved accuracy. In the present invention, a pressure sensor 20 that measures a differential pressure across a PM trapper 11 is provided, and a fault of a PM trapper is determined based on an amount of change in the differential pressure across the PM trapper 11 between two different operation states of an internal combustion engine 1 in which the ambient temperature around the pressure sensor 20 falls within a specific temperature range. Since variations in the offset error of the differential pressure sensor 20 caused by changes in the ambient temperature around the differential pressure sensor 20 is made small, the amount of change in the differential pressure across the PM trapper 11 can be measured more accurately, and a fault of the PM trapper 11 can be detected with improved accuracy.
摘要翻译： 本发明的目的是提供一种能够以更高精度检测PM捕集器的故障的技术。 在本发明中，提供了测量PM捕集器11两端的压差的压力传感器20，根据在两个不同操作之间的PM捕集器11的差压的变化量来确定PM捕集器的故障 内燃机1的状态，其中压力传感器20周围的环境温度落在特定温度范围内。 由于差压传感器20周围的环境温度的变化引起的差压传感器20的偏移误差的偏差变小，所以可以更精确地测定PM捕集器11的差压的变化量， 可以提高精度来检测PM捕集器11的故障。
-
公开(公告)号：US20080041035A1
公开(公告)日：2008-02-21
申请号：US11629998
申请日：2005-06-21
申请人： Hiroshi Sawada , Daisuke Shibata , Keisuke Fukuoka
发明人： Hiroshi Sawada , Daisuke Shibata , Keisuke Fukuoka
IPC分类号： F01N11/00
CPC分类号： F01N11/002 , F01N3/035 , F01N11/005 , F01N13/009 , F01N2550/04 , F01N2900/0422 , F02D41/0055 , F02D41/12 , Y02T10/47
摘要： An object of the invention is to realize a method of determining an abnormality in a particulate filter (5) capable of trapping and oxidizing particulate matter contained in exhaust gas in which even a minor abnormality in which small quantity of particulate matter can pass through the particulate filter (5) can be determined with a high degree of accuracy. To achieve this object, the abnormality determination method according to the invention, the transition of the inflowing exhaust gas temperature in and the outflowing exhaust gas temperature out of the particulate filter (5) during deceleration operating, and the degree of decrease in the outflowing exhaust gas temperature relative to the inflowing exhaust gas temperature is computed based on the transition. If the degree of decrease exceeds a threshold value, it is determined that the particulate filter (5) is abnormal.
摘要翻译： 本发明的目的是实现一种确定能够捕集和氧化废气中所含的颗粒物质的颗粒过滤器（5）的异常的方法，其中即使少量颗粒物质可以通过颗粒物的微小异常 过滤器（5）可以高精度地确定。 为了达到这个目的，根据本发明的异常判定方法，减速运转时，从微粒过滤器（5）流出的废气温度和排出废气温度的过渡以及排出的排气量的减少程度 基于转变计算相对于流入的废气温度的气体温度。 如果降低程度超过阈值，则确定微粒过滤器（5）异常。
-
公开(公告)号：US08495861B2
公开(公告)日：2013-07-30
申请号：US12303500
申请日：2007-06-07
申请人： Daisuke Shibata , Hiroshi Sawada , Keisuke Fukuoka
发明人： Daisuke Shibata , Hiroshi Sawada , Keisuke Fukuoka
IPC分类号： F01N3/021
CPC分类号： B01D46/0086 , B01D2279/30 , F01N3/103 , F01N9/007 , F01N11/002 , F01N13/0097 , F01N2550/04 , F01N2560/08 , F01N2900/0412 , F01N2900/1406 , F02B37/00 , Y02T10/47
摘要： An object of the present invention is to provide a technology that enables detection of a fault of a PM trapper with improved accuracy. In the present invention, a pressure sensor 20 that measures a differential pressure across a PM trapper 11 is provided, and a fault of a PM trapper is determined based on an amount of change in the differential pressure across the PM trapper 11 between two different operation states of an internal combustion engine 1 in which the ambient temperature around the pressure sensor 20 falls within a specific temperature range. Since variations in the offset error of the differential pressure sensor 20 caused by changes in the ambient temperature around the differential pressure sensor 20 is made small, the amount of change in the differential pressure across the PM trapper 11 can be measured more accurately, and a fault of the PM trapper 11 can be detected with improved accuracy.
摘要翻译： 本发明的目的是提供一种能够以更高精度检测PM捕集器的故障的技术。 在本发明中，提供了测量PM捕集器11两端的压差的压力传感器20，根据在两个不同操作之间的PM捕集器11的差压的变化量来确定PM捕集器的故障 内燃机1的状态，其中压力传感器20周围的环境温度落在特定温度范围内。 由于差压传感器20周围的环境温度的变化引起的差压传感器20的偏移误差的偏差变小，所以可以更精确地测定PM捕集器11的差压的变化量， 可以提高精度来检测PM捕集器11的故障。
-
公开(公告)号：US07853442B2
公开(公告)日：2010-12-14
申请号：US10575758
申请日：2004-10-13
CPC分类号： G06F17/5081
摘要： There are provided a printed circuit board design instruction support method between a circuit design and a printed circuit board design, a printed circuit board design instruction support device between a circuit design and a printed circuit board design, a Web system, a program, an a computer-readable recording medium which improve the work efficiency of the printed circuit board designing and the quality of the printed circuit board design. By selecting a circuit part to which the design rule is applied, a circuit program and a portion-to-be-checked on the printed circuit board are simultaneously displayed by cooperation between the circuit design system and the printed circuit board design system, thereby reducing the time and labor required for check.
摘要翻译： 提供了电路设计和印刷电路板设计之间的印刷电路板设计指令支持方法，电路设计和印刷电路板设计之间的印刷电路板设计指令支持装置，Web系统，程序， 计算机可读记录介质，其提高了印刷电路板的设计工作效率和印刷电路板设计的质量。 通过选择应用设计规则的电路部分，电路设计系统和印刷电路板设计系统之间的协作同时显示电路程序和印刷电路板上待部分的部分，从而减少 检查所需的时间和劳动。
-
公开(公告)号：US20080027701A1
公开(公告)日：2008-01-31
申请号：US10575758
申请日：2004-10-13
IPC分类号： G06F17/50
CPC分类号： G06F17/5081
摘要： There are provided a printed circuit board design instruction support method between a circuit design and a printed circuit board design, a printed circuit board design instruction support device between a circuit design and a printed circuit board design, a Web system, a program, an a computer-readable recording medium which improve the work efficiency of the printed circuit board designing and the quality of the printed circuit board design. By selecting a circuit part to which the design rule is applied, a circuit program and a portion-to-be-checked on the printed circuit board are simultaneously displayed by cooperation between the circuit design system and the printed circuit board design system, thereby reducing the time and labor required for check.
摘要翻译： 提供了电路设计和印刷电路板设计之间的印刷电路板设计指令支持方法，电路设计和印刷电路板设计之间的印刷电路板设计指令支持装置，Web系统，程序， 计算机可读记录介质，其提高了印刷电路板的设计工作效率和印刷电路板设计的质量。 通过选择应用设计规则的电路部分，电路设计系统和印刷电路板设计系统之间的协作同时显示电路程序和印刷电路板上待部分的部分，从而减少 检查所需的时间和劳动。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.019 秒)
