Coordinated control of valve timing during mode transitions of direct injection stratified charge engines
    83.
    发明授权
    Coordinated control of valve timing during mode transitions of direct injection stratified charge engines 有权
    直喷式分层充气发动机模式转换期间气门正时的协调控制

    公开(公告)号:US06378484B1

    公开(公告)日:2002-04-30

    申请号:US09571063

    申请日:2000-05-15

    IPC分类号: F02B1700

    摘要: A system and method for controlling a direct injection stratified charge engine during transitions between homogeneous and stratified operating modes position the throttle to a position corresponding to the desired operating mode to begin the transition and use valve timing control to provide a rapid change in air flow to traverse the gap between acceptable air/fuel ratios associated with the homogeneous and stratified modes. The invention reduces torque variations while improving engine performance by coordinating control of an electronic throttle and valve timing to reduce or eliminate step changes in fuel previously required to traverse the air/fuel ratio gap between modes. Primary reliance on air flow and fuel flow to reduce torque variations and improve driveability reduces reliance on spark timing and associated performance penalties.

    摘要翻译: 用于在均匀和分层的操作模式之间的过渡期间控制直接喷射分层充气发动机的系统和方法将油门定位到对应于期望的操作模式的位置,以开始转换,并使用气门正时控制来提供空气流的快速变化 穿过与均匀和分层模式相关的可接受的空气/燃料比之间的间隙。 本发明通过协调电子节气门和气门正时的控制来改善发动机的性能来减小扭矩变化,以减少或消除先前需要的燃料中的空气/燃料比间隙之间所需的燃料的阶跃变化。 主要依靠空气流量和燃料流量来减少扭矩变化并提高驾驶性能,降低了对火花计时和相关性能损失的依赖。

    Boosted engine control responsive to driver selected performance
    84.
    发明授权
    Boosted engine control responsive to driver selected performance 有权
    增强的发动机控制响应司机选择的性能

    公开(公告)号:US08417436B2

    公开(公告)日:2013-04-09

    申请号:US13454631

    申请日:2012-04-24

    申请人: John D. Russell

    发明人: John D. Russell

    IPC分类号: F02D41/00 G06F19/00

    摘要: Various systems and methods are described for operating an engine in a vehicle in response to a driver performance/economy mode. One example method comprises delivering a first fuel to a cylinder of the engine from a first injector, delivering a second, different, fuel to the cylinder of the engine from a second injector, varying a relative amount of said first and second fuel as an operating condition varies; and adjusting delivery of at least said second fuel based on a driver-selected performance mode.

    摘要翻译: 描述了用于响应于驾驶员性能/经济模式来操作车辆中的发动机的各种系统和方法。 一个示例性方法包括将第一燃料从第一注射器输送到发动机的气缸,将第二不同的燃料从第二喷射器输送到发动机的气缸,改变作为操作的所述第一和第二燃料的相对量 条件各不相同 以及基于驾驶员选择的演奏模式来调整至少所述第二燃料的传送。

    High linearity tunable bandpass filter
    86.
    发明授权
    High linearity tunable bandpass filter 有权
    高线性可调带通滤波器

    公开(公告)号:US08185081B2

    公开(公告)日:2012-05-22

    申请号:US12507465

    申请日:2009-07-22

    IPC分类号: H04B1/10 H04B1/18

    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(V1,V2)切换一个或多个调谐部分(15)的第一布置和第二布置 ,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。

    Boosted engine control responsive to driver selected performance
    87.
    发明授权
    Boosted engine control responsive to driver selected performance 有权
    增强的发动机控制响应司机选择的性能

    公开(公告)号:US08165780B2

    公开(公告)日:2012-04-24

    申请号:US13023398

    申请日:2011-02-08

    申请人: John D. Russell

    发明人: John D. Russell

    IPC分类号: F02D41/00 G06F19/00

    摘要: Various systems and methods are described for operating an engine in a vehicle in response to a driver performance/economy mode. One example method comprises delivering a first fuel to a cylinder of the engine from a first injector, delivering a second, different, fuel to the cylinder of the engine from a second injector, varying a relative amount of said first and second fuel as an operating condition varies; and adjusting delivery of at least said second fuel based on a driver-selected performance mode.

    摘要翻译: 描述了用于响应于驾驶员性能/经济模式来操作车辆中的发动机的各种系统和方法。 一个示例性方法包括将第一燃料从第一注射器输送到发动机的气缸,将第二不同的燃料从第二喷射器输送到发动机的气缸,改变作为操作的所述第一和第二燃料的相对量 条件各不相同 以及基于驾驶员选择的演奏模式来调整至少所述第二燃料的传送。

    METHODS AND SYSTEMS FOR ASSISTED DIRECT START CONTROL
    88.
    发明申请
    METHODS AND SYSTEMS FOR ASSISTED DIRECT START CONTROL 有权
    辅助直接起动控制的方法和系统

    公开(公告)号:US20110192374A1

    公开(公告)日:2011-08-11

    申请号:US13090450

    申请日:2011-04-20

    IPC分类号: G05D13/02 F02D43/00

    摘要: Methods and systems are provided for expediting engine spin-down in an engine that is shutdown during engine idle-stop conditions and restarted during restart conditions. In one example, the method comprises, during an automatic engine idle-stop, turning off spark, operating a first cylinder with a rich ratio of air to injected fuel richer than a rich flammability limit, operating a second cylinder with a lean ratio of air to injected fuel leaner than a lean flammability limit, and mixing un-combusted exhaust from the first and second cylinders with exhaust, the exhaust mixture being substantially stoichiometric.

    摘要翻译: 提供了方法和系统,用于在发动机怠速停止条件期间关闭的发动机中加速发动机转速并在再起动条件下重新起动。 在一个示例中,该方法包括在自动发动机怠速停止期间关闭火花,以较丰富的空气比率操作第一气缸,使喷射的燃料比富燃的燃烧极限更浓,操作具有空气比的空气比的第二气缸 将燃料比稀燃燃料极限稀释,并将来自第一和第二气缸的未燃烧排气与排气混合,排气混合物基本上是化学计量的。