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    ENGINE DIAGNOSTICS WITH SKIP FIRE CONTROL
    2.
    发明申请
    ENGINE DIAGNOSTICS WITH SKIP FIRE CONTROL 有权
    发动机诊断与飞行防火

    公开(公告)号：US20160061127A1

    公开(公告)日：2016-03-03

    申请号：US14939498

    申请日：2015-11-12

    Applicant: Tula Technology Inc.

    Inventor： Shikui Kevin CHEN ,  Xin YUAN ,  Joshua P. SWITKES ,  Steven E. CARLSON ,  Mark A. SHOST

    IPC: F02D41/00 ,  F02D41/02

    CPC classification number: F02D41/0087 ,  F02D17/00 ,  F02D17/02 ,  F02D37/02 ,  F02D41/00 ,  F02D41/0082 ,  F02D41/0235 ,  F02D2041/2027 ,  F02D2250/18 ,  Y02T10/44

    Abstract: Methods and devices are described for performing engine diagnostics during skip fire operation of an engine while a vehicle is being driven. Knowledge of the firing sequence is used to determine appropriate times to conduct selected diagnostics and/or to help better interpret sensor inputs or diagnostic results. In one aspect, selected diagnostics are executed when a single cylinder is fired a plurality of times in isolation relative to a sensor used in the diagnosis. In another aspect, selected diagnostics are conducted while the engine is operated using a firing sequence that insures that no cylinders in a first cylinder bank are fired for a plurality of engine cycles while cylinders in a second bank are at least sometimes fired. The described tests can be conducted opportunistically, when conditions are appropriate, or specific firing sequences can be commanded to achieve the desired isolation or skipping of one or more selected cylinders.

    Abstract translation: 描述了用于在车辆被驱动时在发动机的跳过点火操作期间执行发动机诊断的方法和装置。 了解激发序列用于确定适当的时间以进行选定的诊断和/或帮助更好地解释传感器输入或诊断结果。 在一个方面，当单个气缸相对于诊断中使用的传感器被隔离多次时，执行选择的诊断。 在另一方面，当使用确保在第一气缸组中没有气缸在多个发动机循环中被点火的点火顺序来操作发动机时，进行选择的诊断，而在第二组中的气缸至少有时被点火。 所描述的测试可以在条件合适的情况下机会地进行，或者可以命令特定的点火顺序来实现一个或多个选择的气缸的期望的隔离或跳过。

    NOISE/VIBRATION REDUCTION CONTROL
    4.
    发明申请
    NOISE/VIBRATION REDUCTION CONTROL 审中-公开
    噪声/振动减少控制

    公开(公告)号：US20150100221A1

    公开(公告)日：2015-04-09

    申请号：US14509792

    申请日：2014-10-08

    Applicant: Tula Technology Inc.

    Inventor： Geoffrey ROUTLEDGE ,  Mark A. SHOST ,  Biswa R. GHOSH ,  Louis J. SERRANO ,  Mark WILCUTTS

    IPC: F01N1/06 ,  F02D17/02

    CPC classification number: F01N1/065 ,  B60K5/12 ,  F01N1/165 ,  F02D17/02

    Abstract: In one aspect, a system for reducing noise or vibration generated by an internal combustion engine is described. An engine controller is arranged to generate firing information suitable for operating the working chambers of the engine in a skip fire manner to deliver a desired amount of torque. A noise/vibration reduction unit is arranged to help reduce noise or vibration based on the firing information. The noise/vibration controller actively controls a device that is not a part of the engine to alter an NVH characteristic of the vehicle in a desired manner based at least in part on a skip fire characteristic.

    Abstract translation: 在一个方面，描述了一种用于降低由内燃机产生的噪音或振动的系统。 发动机控制器布置成产生适于以跳火方式操作发动机的工作室的发射信息，以输送期望的扭矩量。 噪声/减振单元被布置成基于发射信息来帮助减少噪声或振动。 噪声/振动控制器主动地控制不是发动机的一部分的装置，至少部分地基于跳火特性，以期望的方式改变车辆的NVH特性。

    MANAGING ENGINE FIRING PATTERNS AND PATTERN TRANSITIONS DURING SKIP FIRE ENGINE OPERATION
    8.
    发明申请
    MANAGING ENGINE FIRING PATTERNS AND PATTERN TRANSITIONS DURING SKIP FIRE ENGINE OPERATION 有权
    在飞行火花发动机运行期间管理发动机火焰模式和模式转换

    公开(公告)号：US20140261316A1

    公开(公告)日：2014-09-18

    申请号：US14203444

    申请日：2014-03-10

    Applicant: Tula Technology Inc.

    Inventor： Mark A. SHOST

    IPC: F02D17/02

    CPC classification number: F02D17/02

    Abstract: Various methods and data structures for managing transition between different firing fractions during skip fire operation of an engine are described. In some embodiments, transitions are constrained to occur when firing sequence segments of a designated length are shared by the first and second firing fractions. In a separate aspect, a data structure that uses current firing fraction phase as a first index and a target firing fraction as a second index may be used to determine a phase of the target firing fraction to enter at a transition. Is some circumstances transitions between a current and target firing fraction may be conducted as a series of steps through intermediate firing fractions.

    Abstract translation: 描述了用于管理在发动机的跳火操作期间在不同的点火分数之间的转换的各种方法和数据结构。 在一些实施例中，当第一和第二击发分数共享指定长度的点火序列片段时，限制转变发生。 在单独的方面，可以使用使用当前点火分数相位作为第一指数的数据结构和作为第二指标的目标点火分数，以确定目标燃烧分数在转变时进入的相位。 当前和目标点火分数之间的某些情况转变可以通过中间火花分数进行一系列步骤。

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