Control device for an internal combustion engine
    1.
    发明授权
    Control device for an internal combustion engine 有权
    内燃机控制装置

    公开(公告)号:US07249453B2

    公开(公告)日:2007-07-31

    申请号:US11315239

    申请日:2005-12-23

    IPC分类号: F01N3/00

    摘要: Prior to failure determination of a three-way catalyst, which is carried out on the basis of a reverse frequency ratio of upstream and downstream O2 sensors, deterioration determination is performed at the point when the reverse frequency ratio of the O2 sensors starts to increase, and low NOx control is then implemented. The implement of the low NOx control makes it possible to compensate for the deterioration of the three-way catalyst with respect to NOx purification and to keep NOx emissions from the three-way catalyst equal to or less than the regulation value.

    摘要翻译: 在基于上游和下游O 2传感器的反向频率比进行的三元催化剂的故障确定之前,在反向频率比 的O 2传感器开始增加,然后实现低的NOx控制。 低NOx控制的实现使得可以补偿三元催化剂相对于NOx净化的劣化,并且将来自三元催化剂的NOx排放保持在等于或小于调节值。

    Control device for an internal combustion engine
    2.
    发明申请
    Control device for an internal combustion engine 有权
    内燃机控制装置

    公开(公告)号:US20060137326A1

    公开(公告)日:2006-06-29

    申请号:US11315239

    申请日:2005-12-23

    IPC分类号: F01N7/00 F01N3/00

    摘要: Prior to failure determination of a three-way catalyst, which is carried out on the basis of a reverse frequency ratio of upstream and downstream O2 sensors, deterioration determination is performed at the point when the reverse frequency ratio of the O2 sensors starts to increase, and low NOx control is then implemented. The implement of the low NOx control makes it possible to compensate for the deterioration of the three-way catalyst with respect to NOx purification and to keep NOx emissions from the three-way catalyst equal to or less than the regulation value.

    摘要翻译: 在基于上游和下游O 2传感器的反向频率比进行的三元催化剂的故障确定之前,在反向频率比 的O 2传感器开始增加,然后实现低的NOx控制。 低NOx控制的实现使得可以补偿三元催化剂相对于NOx净化的劣化,并且将来自三元催化剂的NOx排放保持在等于或小于调节值。

    Deterioration diagnostic system of exhaust gas purifying catalyst
    4.
    发明授权
    Deterioration diagnostic system of exhaust gas purifying catalyst 失效
    废气净化催化剂恶化诊断系统

    公开(公告)号:US07739868B2

    公开(公告)日:2010-06-22

    申请号:US11797864

    申请日:2007-05-08

    IPC分类号: F01N3/00

    摘要: A deterioration diagnostic system of an exhaust gas purifying catalyst includes: an upstream side switching frequency calculator calculating the number of times of switching on the upstream side; a reference value calculator calculating a downstream side rich/lean determination level having a first width; a downstream side rich/lean determination level adjuster setting the first width to a second larger width when the number of times of switching on the upstream side is smaller than a predetermined value; a downstream side switching frequency calculator calculating the number of times of switching on the downstream side; a frequency ratio calculator calculating a frequency ratio between the number of times of switching on the downstream side and the number of times of switching on the upstream side; and a deterioration determiner determining the deterioration of the exhaust gas purifying catalyst when the frequency ratio is larger than a predetermined value.

    摘要翻译: 废气净化催化剂的劣化诊断系统包括:上游侧开关频率计算器,计算上游侧的切换次数; 计算具有第一宽度的下游侧浓/精确判定水平的参考值计算器; 当上游侧的切换次数小于预定值时,下游侧浓/精确判定水平调节器将第一宽度设置为第二较大宽度; 计算下游侧的切换次数的下游侧切换频率计算部; 频率比计算器,计算下游侧的切换次数与上游侧的切换次数之间的频率比; 以及劣化确定器,当频率比大于预定值时,确定废气净化催化剂的劣化。

    EGR system for internal combustion engine
    5.
    发明申请
    EGR system for internal combustion engine 有权
    内燃机EGR系统

    公开(公告)号:US20080202482A1

    公开(公告)日:2008-08-28

    申请号:US12068721

    申请日:2008-02-11

    IPC分类号: F02B47/08

    摘要: When the opening angle of an intake control valve is limited to a given opening angle by fuel cut, an EGR apparatus is activated, and a malfunction of the EGR apparatus is diagnosed on the basis of a change in intake manifold pressure before and after the activation of the EGR apparatus. When the control for reducing the intake-manifold negative pressure is not implemented, the change of the intake manifold pressure is corrected with a changing amount of first reference intake pressure (P(Ne)) changed by engine speed Ne. When the control for reducing the intake manifold genitive pressure is implemented, the change of the intake manifold pressure is corrected with a changing amount of second reference intake pressure (PL(Ne)) changed by engine speed Ne.

    摘要翻译: 当通过燃料切断将进气控制阀的打开角度限制在给定的开启角度时,EGR装置被启动,并且基于在启动之前和之后的进气歧管压力的变化来诊断EGR装置的故障 的EGR装置。 当没有实现减少进气歧管负压的控制时,通过发动机转速Ne改变的第一基准进气压力(P(Ne))的变化量来校正进气歧管压力的变化。 当执行用于降低进气歧管基本压力的控制时,进气歧管压力的变化由发动机转速Ne变化的第二基准进气压力(P L(Ne))的变化量来校正 。

    EGR system for internal combustion engine
    6.
    发明授权
    EGR system for internal combustion engine 有权
    内燃机EGR系统

    公开(公告)号:US07565901B2

    公开(公告)日:2009-07-28

    申请号:US12068721

    申请日:2008-02-11

    IPC分类号: F02M25/07 F02B47/08 G01M19/00

    摘要: When the opening angle of an intake control valve is limited to a given opening angle by fuel cut, an EGR apparatus is activated, and a malfunction of the EGR apparatus is diagnosed on the basis of a change in intake manifold pressure before and after the activation of the EGR apparatus. When the control for reducing the intake-manifold negative pressure is not implemented, the change of the intake manifold pressure is corrected with a changing amount of first reference intake pressure (P(Ne)) changed by engine speed Ne. When the control for reducing the intake manifold genitive pressure is implemented, the change of the intake manifold pressure is corrected with a changing amount of second reference intake pressure (PL(Ne)) changed by engine speed Ne.

    摘要翻译: 当通过燃料切断将进气控制阀的打开角度限制在给定的开启角度时,EGR装置被启动,并且基于在启动之前和之后的进气歧管压力的变化来诊断EGR装置的故障 的EGR装置。 当没有实现减少进气歧管负压的控制时,通过发动机转速Ne改变的第一基准进气压力(P(Ne))的变化量来校正进气歧管压力的变化。 当实现减少进气歧管压力的控制时,通过发动机转速Ne改变的第二参考进气压力(PL(Ne))的变化量来校正进气歧管压力的变化。

    Deterioration diagnostic system of exhaust gas purifying catalyst
    7.
    发明申请
    Deterioration diagnostic system of exhaust gas purifying catalyst 失效
    废气净化催化剂恶化诊断系统

    公开(公告)号:US20070261390A1

    公开(公告)日:2007-11-15

    申请号:US11797864

    申请日:2007-05-08

    IPC分类号: F01N3/00 F01N7/00

    摘要: A deterioration diagnostic system of an exhaust gas purifying catalyst includes: an upstream side switching frequency calculator calculating the number of times of switching on the upstream side; a reference value calculator calculating a downstream side rich/lean determination level having a first width; a downstream side rich/lean determination level adjuster setting the first width to a second width larger than the first width when the number of times of switching on the upstream side is smaller than a predetermined value; a downstream side switching frequency calculator calculating the number of times of switching on the downstream side; an intake air volume calculator calculating an intake air volume; a frequency ratio calculator calculating a frequency ratio between the number of times of switching on the downstream side and the number of times of switching on the upstream side; and a deterioration determiner determining the deterioration of the exhaust gas purifying catalyst when the frequency ratio is larger than a predetermined value.

    摘要翻译: 废气净化催化剂的劣化诊断系统包括:上游侧开关频率计算器,计算上游侧的切换次数; 计算具有第一宽度的下游侧浓/精确判定水平的参考值计算器; 当上游侧的切换次数小于预定值时,下游侧浓缩/倾斜确定水平调节器将第一宽度设置为大于第一宽度的第二宽度; 计算下游侧的切换次数的下游侧切换频率计算部; 进气量计算器,计算进气量; 频率比计算器,计算下游侧的切换次数与上游侧的切换次数之间的频率比; 以及劣化确定器,当频率比大于预定值时,确定废气净化催化剂的劣化。

    Electronic apparatus
    9.
    发明授权
    Electronic apparatus 失效
    电子仪器

    公开(公告)号:US08564941B2

    公开(公告)日:2013-10-22

    申请号:US12827088

    申请日:2010-06-30

    IPC分类号: H05K5/00 H05K7/00 G06F1/16

    CPC分类号: G06F1/1616

    摘要: An electronic apparatus includes a keyboard unit, a first circuit board, and a first electronic component. The keyboard unit includes a plate that includes a front surface and a bottom surface facing each other and a first coupling portion protruding from the bottom surface, and a plurality of keys provided on the front surface side of the plate. The first circuit board is provided to face the bottom surface via the first coupling portion and includes a second coupling portion to be coupled with the first coupling portion and a first front surface as a surface on a side that faces the bottom surface. The first electronic component is mounted on the first front surface of the first circuit board.

    摘要翻译: 电子设备包括键盘单元,第一电路板和第一电子元件。 键盘单元包括:板,其包括彼此面对的前表面和底表面;以及从底表面突出的第一联接部分和设置在板的前表面侧上的多个键。 第一电路板经由第一联接部分设置为面对底面,并且包括与第一联接部分联接的第二联接部分和作为面向底面的一侧上的表面的第一前表面。 第一电子部件安装在第一电路板的第一前表面上。