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    NOISE, VIBRATION AND HARSHNESS REDUCTION IN A SKIP FIRE ENGINE CONTROL SYSTEM
    3.
    发明申请
    NOISE, VIBRATION AND HARSHNESS REDUCTION IN A SKIP FIRE ENGINE CONTROL SYSTEM 有权
    噪声，振动和谐波减少在一个飞行火灾发动机控制系统

    公开(公告)号：US20160201586A1

    公开(公告)日：2016-07-14

    申请号：US14992779

    申请日：2016-01-11

    Applicant: Tula Technology, Inc.

    Inventor： Louis J. SERRANO ,  Xin YUAN ,  John W. PARSELS ,  Mohammad R. PIRJABERI ,  Mark A. WILCUTTS ,  Masaki NAGASHIMA

    IPC: F02D41/00 ,  F02D41/14

    CPC classification number: F02D41/0087 ,  F02D41/0002 ,  F02D41/1498 ,  F02D41/3058 ,  F02D41/307 ,  F02D2041/0012

    Abstract: A variety of methods and arrangements for reducing noise, vibration and harshness (NVH) in a skip fire engine control system are described. In one aspect, a firing sequence is used to operate the engine in a skip fire manner. A smoothing torque is determined that is applied to a powertrain by an energy storage/release device. The smoothing torque is arranged to at least partially cancel out variation in torque generated by the skip fire firing sequence. Various methods, powertrain controllers, arrangements and computer software related to the above operations are also described.

    Abstract translation: 描述了用于减少跳火消防车控制系统中的噪声，振动和粗糙度（NVH）的各种方法和装置。 在一个方面，使用点火顺序来以跳火方式操作发动机。 确定通过能量存储/释放装置施加到动力系的平滑扭矩。 平滑扭矩被布置成至少部分抵消由跳过火焰点火序列产生的扭矩的变化。 还描述了与上述操作相关的各种方法，动力系统控制器，布置和计算机软件。

    SYSTEM AND METHOD FOR SAFE VALVE ACTIVATION IN A DYNAMIC SKIP FIRING ENGINE
    5.
    发明申请
    SYSTEM AND METHOD FOR SAFE VALVE ACTIVATION IN A DYNAMIC SKIP FIRING ENGINE 有权
    动态飞行发动机安全阀启动的系统和方法

    公开(公告)号：US20150075458A1

    公开(公告)日：2015-03-19

    申请号：US14487563

    申请日：2014-09-16

    Applicant: Tula Technology Inc.

    Inventor： John W. PARSELS ,  Matthew A. YOUNKINS ,  Shikui Kevin CHEN

    IPC: F02D17/02 ,  F02D13/02

    CPC classification number: F02D17/02 ,  F02D13/06 ,  F02D41/0087 ,  F02D41/1498 ,  F02D41/22 ,  F02D2041/001 ,  Y02T10/18 ,  Y02T10/40

    Abstract: A variety of methods and devices for controlling the operation of the intake and exhaust valves in an internal combustion engine during skip fire operation are described. In various embodiments, an exhaust valve monitor or other suitable mechanism is used to detect exhaust valve actuation faults. When an exhaust valve actuation fault is detected for a particular cylinder, the corresponding intake valve is deactivated (or not activated) in circumstances when it would otherwise be activated in order to prevent the intake valve from opening into a cylinder that contains high pressure combustion gases. The described approach is particularly beneficial when skip fire operation is combined with cylinder deactivation so that air is not pumped through the cylinders during the skipped working cycles.

    Abstract translation: 描述了用于在跳火操作期间控制内燃机中的进气门和排气门的操作的各种方法和装置。 在各种实施例中，使用排气门监视器或其他合适的机构来检测排气门致动故障。 当检测到特定气缸的排气门致动故障时，相应的进气门在其它情况下被停用（或未激活），以防止进气阀打开进入含有高压燃烧气体的气缸 。 所述方法在跳火操作与气缸停用组合时特别有利，使得在跳过的工作循环期间空气不被泵送通过气缸。

    DRIVE TRAIN SLIP FOR VIBRATION MITIGATION DURING SKIP FIRE OPERATION
    9.
    发明申请
    DRIVE TRAIN SLIP FOR VIBRATION MITIGATION DURING SKIP FIRE OPERATION 有权
    用于在飞行员操作期间进行振动缓解的驱动滑轨

    公开(公告)号：US20140041626A1

    公开(公告)日：2014-02-13

    申请号：US13963819

    申请日：2013-08-09

    Applicant: Tula Technology, Inc.

    Inventor： Mark A. WILCUTTS ,  Xin YUAN ,  Joshua P. SWITKES ,  Steven E. CARLSON ,  John F. IMPEDUGLIA ,  John W. PARSELS

    IPC: F02D41/00

    CPC classification number: B60W30/20 ,  B60W10/026 ,  B60W10/08 ,  B60W2030/203 ,  B60W2710/025 ,  F02D11/105 ,  F02D41/00 ,  F02D41/0087 ,  F02D41/022 ,  F02D41/18 ,  F02D2250/18

    Abstract: A variety of methods and devices for mitigating power train vibration during skip fire operation of an engine are described. In one aspect, the slip of a drive train component (such as a torque converter clutch) is based at least in part upon a skip fire characteristic (such as firing fraction, selected firing sequence/pattern, etc.) during skip fire operation of an engine. The modulation of the drive train component slip can also be varied as a function of one or more engine operating parameters such as engine speed and/or a parameter indicative of the output of fired cylinders (such as mass air charge).

    Abstract translation: 描述了用于减轻发动机的跳火操作期间的动力传动系振动的各种方法和装置。 一方面，传动系部件（例如变矩器离合器）的滑动至少部分地基于跳过火焰运行期间的跳火特性（例如点火分数，选择的点火顺序/图案等） 一个引擎 传动系组件滑动的调制也可以作为一个或多个发动机操作参数（诸如发动机转速和/或指示燃烧气缸的输出的参数（例如大气压））的函数而变化。

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