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    • 4. 发明授权
    • Oxygen sensor deterioration-detecting system for internal combustion
engines
    • 内燃机氧传感器劣化检测系统
    • US5485382A
    • 1996-01-16
    • US226007
    • 1994-04-11
    • Yasunari SekiToshihiko SatoNaoki IidaYoichi Iwata
    • Yasunari SekiToshihiko SatoNaoki IidaYoichi Iwata
    • F02D41/14F02D41/22G01N33/00G06G7/70F01N3/00G06F19/00
    • F02D41/1443F02D41/1495G01N33/007
    • An oxygen sensor deterioration-detecting system for an internal combustion engine having a plurality of groups of cylinders groups, an exhaust system having a plurality of exhaust passages extending, respectively, from the cylinder groups, and catalytic converters arranged in the exhaust system, and a plurality of upstream oxygen sensors arranged, respectively, in the exhaust passages at locations upstream of the catalytic converters, includes a single downstream oxygen sensor arranged in a confluent portion of the exhaust passages at a location downstream of the catalytic converters, for detecting the mixed air-fuel ratio of exhaust gases emitted from the cylinder groups. An ECU is responsive to outputs from the upstream oxygen sensors and an output from the downstream oxygen sensor, for determining air-fuel ratio control amounts for respective ones of the cylinder groups, and for controlling the air-fuel ratios of air-fuel mixtures supplied into the respective cylinder groups by the use of the air-fuel ratio control amounts determined. The ECU detects deterioration of each upstream oxygen sensor, based on an output from the upstream oxygen sensor obtained by the air-fuel ratio control based on a corresponding one of the air-fuel ratio control amounts.
    • 一种用于具有多组气缸组的内燃机的氧传感器劣化检测系统,具有分别从气缸组延伸的多个排气通道的排气系统和布置在排气系统中的催化转化器, 分别在催化转化器上游的排气通道中排列的多个上游氧传感器包括在催化转化器的下游位置排列在排气通道的汇合部分中的单个下游氧传感器,用于检测混合空气 - 从气缸组排放的废气的燃料比。 ECU响应来自上游氧气传感器的输出和来自下游氧气传感器的输出,用于确定各个气缸组的空燃比控制量,并且用于控制供应的空气 - 燃料混合物的空燃比 通过使用所确定的空燃比控制量进入各气缸组。 ECU根据空燃比控制得到的上游氧传感器的输出,根据空燃比控制量的相应一个,检测上游氧传感器的劣化。
    • 7. 发明授权
    • Variable inductor
    • 可变电感
    • US06583704B2
    • 2003-06-24
    • US09828097
    • 2001-04-06
    • Naoki IidaMasahiko Kawaguchi
    • Naoki IidaMasahiko Kawaguchi
    • H01F500
    • H01F21/12H01F2021/125
    • A variable inductor includes an input external electrode, an output external electrode, and a coil formed by electrically connecting at least two spiral coil pattern portions in series between the input external electrode and the output external electrode. At least one trimming electrode is further provided in each of the spiral coil pattern portions. A first end and a second end of each trimming electrode are connected to the spiral coil pattern portion, and a lead out electrode, respectively, so that the trimming electrode bridges between the lead out electrode and the coil. The trimming electrodes are sequentially trimmed one-by-one, by, for example, irradiating a laser beam, starting from a trimming electrode closer to an edge, whereby the inductance of the coil is increased accordingly.
    • 可变电感器包括输入外部电极,输出外部电极和通过在输入外部电极和输出外部电极之间串联电连接至少两个螺旋线圈图案部分而形成的线圈。 在每个螺旋线圈图案部分中进一步设置至少一个修剪电极。 每个修整电极的第一端和第二端分别连接到螺旋线圈图案部分和引出电极,使得修整电极在引出电极和线圈之间桥接。 通过例如从更靠近边缘的修整电极开始照射激光束逐个地修整修整电极,由此线圈的电感相应地增加。