ENGINE OUTPUT CONTROL SYSTEM AND METHOD
    91.
    发明申请
    ENGINE OUTPUT CONTROL SYSTEM AND METHOD 有权
    发动机输出控制系统及方法

    公开(公告)号:US20080228382A1

    公开(公告)日:2008-09-18

    申请号:US12124845

    申请日:2008-05-21

    IPC分类号: F02D41/00

    摘要: A system for an engine, comprising a cylinder located in the engine, a turbocharger coupled to the engine, a first injector for injecting a first fuel into said cylinder, wherein said first injector is a direct cylinder injector where said direct cylinder injector delivers a liquid including an alcohol, a second injector for injecting a second fuel into said cylinder, wherein said second injector is a port injector, where said port injector delivers a liquid including gasoline, a catalytic device configured to receive exhaust gases produced by at least the cylinder, and a controller configured to vary an amount of said first and second fuel injection during engine operation based on operating conditions, where amounts of variation of said first and second fuels are set to maintain a substantially stoichiometric mixture, the controller further configured to increase a relative amount of injection of the second injector in response to an indication of engine knock during a first operating condition, decrease engine boosting in response to the indication of engine knock during a second condition; and retard ignition timing in response the indication of engine knock during a third condition.

    摘要翻译: 一种用于发动机的系统,包括位于发动机中的气缸,联接到发动机的涡轮增压器,用于将第一燃料喷射到所述气缸中的第一喷射器,其中所述第一喷射器是直接气缸喷射器,其中所述直接气缸喷射器输送液体 包括酒精,用于将第二燃料喷射到所述气缸中的第二喷射器,其中所述第二喷射器是端口喷射器,其中所述端口喷射器输送包括汽油的液体,构造成接收由​​至少所述气缸产生的废气的催化装置, 以及控制器,其被配置为基于操作条件来改变发动机操作期间的所述第一和第二燃料喷射的量,其中所述第一和第二燃料的变化量被设置为保持基本上为化学计量的混合物,所述控制器还被配置为增加相对 响应于在第一操作期间引擎敲击的指示,第二喷射器的喷射量 g条件下,在第二个状态下响应于发动机爆震指示而减少发动机升压; 并且在第三状态期间响应于引擎敲击的指示来延迟点火正时。

    High Linearity Tunable Bandpass Filter
    94.
    发明申请
    High Linearity Tunable Bandpass Filter 失效
    高线性可调谐带通滤波器

    公开(公告)号:US20080085694A1

    公开(公告)日:2008-04-10

    申请号:US11539048

    申请日:2006-10-05

    IPC分类号: H04B1/18 H04B1/16

    摘要: A tunable bandpass filter (10) is provided. An RF signal is provided at an input of the tunable bandpass filter, and a level shifted control signal (V1, V2) inputted to the tunable bandpass filter (10) switches a first arrangement and a second arrangement of one or more tuning portions (15, 17-1, 17-2, 17-3) in or out of the tunable bandpass filter using a GaAs FET switch. The first arrangement is coupled to the second arrangement using an inductor (13). An RF signal having a desired predetermined frequency at an output of the tunable bandpass filter (10) is produced by the switching. The tuning portions include the GaAs FET switch (15), a first capacitor (17-1) connected at a first signal terminal of the GaAs FET switch and a second capacitor (17-2) connected between a second signal terminal of the GaAs FET switch and ground. Each of the tuning portions can be arranged in parallel with one another.

    摘要翻译: 提供可调谐带通滤波器(10)。 在可调谐带通滤波器的输入处提供RF信号,并且输入到可调谐带通滤波器(10)的电平转换控制信号(V 1,V 2)切换一个或多个调谐部分的第一布置和第二布置 (15,17-1,17-2,17-3)使用GaAs FET开关输入或输出可调谐带通滤波器。 第一布置使用电感器(13)耦合到第二布置。 通过切换产生在可调谐带通滤波器(10)的输出处具有期望的预定频率的RF信号。 调谐部分包括GaAs FET开关(15),连接在GaAs FET开关的第一信号端的第一电容器(17-1)和连接在GaAs FET的第二信号端子之间的第二电容器(17-2) 开关和接地。 每个调谐部分可以彼此平行布置。