Apparatus and method of detecting a leak in an evaporative emissions
system
    1.
    发明授权
    Apparatus and method of detecting a leak in an evaporative emissions system 失效
    检测蒸发排放系统泄漏的装置和方法

    公开(公告)号:US5637788A

    公开(公告)日:1997-06-10

    申请号:US511331

    申请日:1995-08-03

    IPC分类号: F02M25/08 G01M3/26

    CPC分类号: F02M25/0809

    摘要: A apparatus and method of detecting a leak in an evaporative emissions system measures vapor flow out of the evaporative emissions system while maintaining a zero pressure difference from inside a fuel tank to atmosphere and provides a reference vapor flow variable dependent on the measurement (317). A pressurized vapor and leak flow variable is measured (323) dependent on measured vapor flow out of the evaporative emissions system while maintaining a pressure difference of 10" of water from inside the fuel tank to atmosphere. A leak is indicated (327) if a difference between the reference vapor flow variable and the pressurized vapor and leak flow variable is greater than a predetermined leak flow factor.

    摘要翻译: 检测蒸发排放系统中的泄漏的装置和方法测量蒸发排出系统中的蒸汽流,同时保持从燃料箱内部到大气的零压差,并提供取决于测量的参考蒸汽流变量(317)。 测量加压蒸汽和泄漏流量变量(323),取决于蒸发排放系统中测量的蒸汽流量,同时保持水从燃料箱内部到大气的压力差为10“。 如果参考蒸汽流量变量和加压蒸汽和泄漏流量变量之间的差异大于预定的泄漏流量因子,则指示泄漏(327)。

    Pattern recognition method and system for determining a misfire
condition in a reciprocating engine
    2.
    发明授权
    Pattern recognition method and system for determining a misfire condition in a reciprocating engine 失效
    用于确定往复式发动机失火状态的模式识别方法和系统

    公开(公告)号:US5804711A

    公开(公告)日:1998-09-08

    申请号:US689038

    申请日:1996-08-06

    摘要: A method, and a corresponding system, for determining misfire in a reciprocating engine measures engine crankshaft angular velocity and provides an angular velocity signal as measured from the engine crankshaft (403). A filtered acceleration signal, dependent on the engine crankshaft angular velocity signal and independent of normal combustion information and other high-order effects is provided via filtering (405). When the filtered acceleration signal exceeds a threshold dependent on at least one of the following; engine speed, engine load, or engine temperature (711), a misfire is indicated. Preferably, prior to the misfire determination, the filtered acceleration signal (701) is sampled over a first period of engine crankshaft rotation to provide a first data point (703), over a second period of engine crankshaft rotation to provide a second data point (707), and over a third period of engine crankshaft rotation to provide a third data point (705). Then, an average of the first and third data points is subtracted from the second data point and a combined acceleration signal is provided (511). Then, a misfire is indicated (517) when the combined acceleration signal exceeds the threshold (513). Preferably, this sampling of the filtered acceleration signal is continuous, and the sampling of the first, second and third data points is separated by two engine crankshaft rotations.

    摘要翻译: 用于确定往复式发动机中的失火的方法和对应系统测量发动机曲轴角速度并提供从发动机曲轴(403)测得的角速度信号。 通过滤波(405)提供了依赖于发动机曲轴角速度信号和独立于正常燃烧信息和其他高阶效应的滤波加速度信号。 当滤波的加速度信号超过取决于以下至少之一的阈值时: 发动机转速,发动机负荷或发动机温度(711),则表示失火。 优选地,在失火确定之前,在发动机曲轴旋转的第一周期上对滤波的加速度信号(701)进行采样,以在发动机曲轴旋转的第二周期上提供第一数据点(703),以提供第二数据点 707),并且在发动机曲轴旋转的三分之一以上以提供第三数据点(705)。 然后,从第二数据点减去第一和第三数据点的平均值,并提供组合加速度信号(511)。 然后,当组合的加速度信号超过阈值(513)时,指示失火(517)。 优选地,滤波加速度信号的该采样是连续的,并且第一,第二和第三数据点的采样由两个发动机曲轴旋转分开。

    Combustion control of an internal combustion engine proximate an
extinction limit
    5.
    发明授权
    Combustion control of an internal combustion engine proximate an extinction limit 失效
    内燃机接近灭火极限的燃烧控制

    公开(公告)号:US5806014A

    公开(公告)日:1998-09-08

    申请号:US967116

    申请日:1997-11-12

    摘要: A method and system of combustion control for an internal combustion engine (313) proximate an extinction limit includes measurement of acceleration behavior of the internal combustion engine and providing a measure of combustion variability dependent thereon. Preferably, the combustion variability measure is derived by one or more stochastically based methods (607). Operation of the internal combustion engine (313) is controlled dependent on the combustion variability measurement. Fuel, ignition, and exhaust gas recirculation may all be controlled by the derived combustion variability measurement to significantly reduce hydrocarbon (HC) and NO.sub.x emissions.

    摘要翻译: 用于接近消光极限的内燃机(313)的燃烧控制的方法和系统包括测量内燃机的加速行为并提供依赖于其的燃烧变化性的量度。 优选地,燃烧变率测量通过一种或多种基于随机的方法得出(607)。 内燃机(313)的操作取决于燃烧变率测量。 燃料,点燃和废气再循环可以全部由所得的燃烧变异性测量来控制,以显着减少碳氢化合物(HC)和NOx排放。

    Vehicle network with time slotted access and method
    7.
    发明授权
    Vehicle network with time slotted access and method 有权
    具有时隙访问和方法的车载网络

    公开(公告)号:US07733841B2

    公开(公告)日:2010-06-08

    申请号:US11125791

    申请日:2005-05-10

    IPC分类号: H04B7/212

    摘要: A vehicle network and method for communicating information within a vehicle. The network includes a plurality of network elements joined by communication links. A data frame is provided for communicating information between a first device and a second device attached to the network. A network element in the network is capable of mapping a first resource on an incoming communication link of the network element to a second link resource of an outgoing communication link of the network element. The network element further has ports for receiving the data frame from the first link resource of the incoming communication link and for communicating the data frame to the second link resource of the outgoing communication link. The mapping may be done statically or dynamically such as based on information stored in the network element or based on information stored in the data frame.

    摘要翻译: 一种用于在车辆内传送信息的车辆网络和方法。 网络包括通过通信链路连接的多个网络元件。 提供了用于在第一设备和附接到网络的第二设备之间传送信息的数据帧。 网络中的网络元件能够将网元的传入通信链路上的第一资源映射到网元的输出通信链路的第二链路资源。 网络元件还具有用于从进入的通信链路的第一链路资源接收数据帧并将数据帧传送到输出通信链路的第二链路资源的端口。 映射可以静态地或动态地进行,例如基于存储在网络元件中的信息或者基于存储在数据帧中的信息。

    Automotive electrical system
    8.
    发明授权
    Automotive electrical system 失效
    汽车电气系统

    公开(公告)号:US07701079B2

    公开(公告)日:2010-04-20

    申请号:US10927687

    申请日:2004-08-27

    IPC分类号: B60L1/00

    摘要: Disclosed herein are a variety of different electrical system topologies intended to mitigate the impact of large intermittent loads on a 12 volt vehicle power distribution system. In some embodiments the intermittent load is disconnected from the remainder of the system and the voltage supplied to this load is allowed to fluctuate. In other embodiments, the voltage to critical loads is regulated independently of the voltage supplied to the remainder of the system. The different topologies described can be grouped into three categories, each corresponding to a different solution technique. One approach is to regulate the voltage to the critical loads. A second approach is to isolate the intermittent load that causes the drop in system voltage. The third approach is to use a different type of alternator that has a faster response than the conventional Lundell wound field machine.

    摘要翻译: 这里公开了各种不同的电气系统拓扑,旨在减轻大型间歇负载对12伏车辆配电系统的影响。 在一些实施例中,断续负载与系统的其余部分断开,并且允许提供给该负载的电压波动。 在其他实施例中,关键负载的电压被独立于提供给系统其余部分的电压进行调节。 所描述的不同拓扑可以分为三类,每种类别对应于不同的解决方案技术。 一种方法是调节关键负载的电压。 第二种方法是隔离导致系统电压下降的间歇负载。 第三种方法是使用与常规Lundell伤口场机相比具有更快响应的不同类型的交流发电机。

    RELEASEABLE ONE-WAY CLUTCH
    9.
    发明申请
    RELEASEABLE ONE-WAY CLUTCH 审中-公开
    可拆卸单向离合器

    公开(公告)号:US20100072017A1

    公开(公告)日:2010-03-25

    申请号:US12447514

    申请日:2008-01-09

    IPC分类号: F16D41/06

    CPC分类号: F16D41/088

    摘要: A clutch (22) includes a first member (48) rotatable with respect to a base member (14) in a first direction A and a second direction B, a second member (56) rotatable with respect to the base member, a rolling element (62) between the first and second members, and a ramp sleeve (58) disposed between the first and second members, and coupled to the base member such that the ramp sleeve is generally prevented from rotating with respect to the base member. The ramp sleeve includes a ramp (82). The second member includes a first rotational position with respect to the ramp sleeve and a second rotational position with respect to the ramp sleeve. The rolling element is configured to wedge against the ramp to prevent relative rotation of the first member with respect to the base member in the first direction when the second member is in the first rotational position. When the second member is in the second rotational position, the first member is able to rotate with respect to the base member in the first rotational direction.

    摘要翻译: 离合器(22)包括在第一方向A和第二方向B相对于基部构件(14)可旋转的第一构件(48),第二方向B,可相对于基座构件旋转的第二构件(56),滚动元件 (62)和设置在第一和第二构件之间的斜坡套筒(58),并且联接到基座构件,使得斜坡套筒通常被防止相对于基座构件旋转。 斜坡套管包括斜坡(82)。 第二构件包括相对于斜面套筒的第一旋转位置和相对于斜面套筒的第二旋转位置。 滚动元件构造成楔形抵抗斜坡以防止当第二构件处于第一旋转位置时第一构件相对于基部构件在第一方向上的相对旋转。 当第二构件处于第二旋转位置时,第一构件能够在第一旋转方向上相对于基座构件旋转。