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    FIRING FRACTION MANAGEMENT IN SKIP FIRE ENGINE CONTROL
    323.
    发明申请
    FIRING FRACTION MANAGEMENT IN SKIP FIRE ENGINE CONTROL 有权
    飞行火灾发动机控制中的火力分配管理

    公开(公告)号：US20170067401A1

    公开(公告)日：2017-03-09

    申请号：US15357398

    申请日：2016-11-21

    Applicant: Tula Technology, Inc.

    Inventor： Mohammad R. PIRJABERI ,  Adya S. TRIPATHI ,  Louis J. SERRANO

    IPC: F02D17/02 ,  F02D41/00 ,  F02D13/06

    CPC classification number: F02D17/02 ,  F02D13/06 ,  F02D37/02 ,  F02D41/0087 ,  F02D2041/286 ,  F02D2200/101

    Abstract: In various described embodiments skip fire control is used to deliver a desired engine output. A controller determines a skip fire firing fraction and (as appropriate) associated engine settings that are suitable for delivering a requested output. In one aspect, the skip fire controller is arranged to select a base firing fraction that has a repeating firing cycle length that will repeat at least a designated number of times per second at the current engine speed. Such an arrangement can be helpful in reducing the occurrence of undesirable vibrations.

    Abstract translation: 在各种描述的实施例中，跳过火控制用于传递期望的发动机输出。 控制器确定跳过火焰射击分数以及（适当地）适合于递送请求的输出的相关联的引擎设置。 在一个方面，跳过火控制器布置成选择具有重复的发射周期长度的基本点火分数，其将以当前发动机转速每秒重复至少指定次数。 这种布置可以有助于减少不期望的振动的发生。

    NOISE, VIBRATION AND HARSHNESS REDUCTION IN A SKIP FIRE ENGINE CONTROL SYSTEM
    324.
    发明申请
    NOISE, VIBRATION AND HARSHNESS REDUCTION IN A SKIP FIRE ENGINE CONTROL SYSTEM 审中-公开
    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：US20170051689A1

    公开(公告)日：2017-02-23

    申请号：US15340291

    申请日：2016-11-01

    Applicant: Tula Technology, Inc.

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

    IPC: F02D41/00 ,  F02D41/30 ,  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。确定由能量存储/释放装置施加到动力系的平滑转矩。 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。

    Averaging filter for skip fire engine operation
    325.
    发明授权
    Averaging filter for skip fire engine operation 有权
    用于跳过消防车操作的平均过滤器

    公开(公告)号：US09494088B1

    公开(公告)日：2016-11-15

    申请号：US14704747

    申请日：2015-05-05

    Applicant: Tula Technology Inc.

    Inventor： Louis J. Serrano ,  Mohammad R. Pirjaberi ,  Charles H. Loucks

    IPC: F02D17/02 ,  F02D41/00 ,  F02D41/18 ,  G01M15/04

    CPC classification number: F02D17/02 ,  F02D41/0087 ,  F02D41/0097 ,  F02D41/18 ,  F02D2041/0012 ,  F02D2041/1422 ,  F02D2041/1432 ,  F02D2041/286

    Abstract: A variety of methods, devices and filters are described that are suitable for averaging measured power train operating parameters over a period that varies as a function of an engine cylinder firing characteristic such as a current operational firing fraction or firing sequence. The averaged measured operating parameter may be used in a variety of different engine control related functions, calculations and/or operations. The described techniques and devices are particularly well suited for use during skip fire operation of an engine.

    Abstract translation: 描述了各种各样的方法，装置和过滤器，其适用于在作为发动机气缸点火特性（例如当前的操作点火分数或点火顺序）的函数变化的周期内平均测量的动力系运行参数。 平均测量的操作参数可用于各种不同的发动机控制相关功能，计算和/或操作。 所描述的技术和装置特别适用于在发动机的跳火操作期间使用。

    Misfire detection system
    327.
    发明授权
    Misfire detection system 有权
    失火检测系统

    公开(公告)号：US09399963B2

    公开(公告)日：2016-07-26

    申请号：US14207109

    申请日：2014-03-12

    Applicant: Tula Technology Inc.

    Inventor： Charles H. Loucks ,  Joel D. Van Ess ,  Siamak Hashemi ,  Louis J. Serrano ,  Mohammad R. Pirjaberi ,  Shikui Kevin Chen ,  Matthew A. Younkins ,  Mark A. Shost ,  Mark A. Wilcutts

    IPC: F02D41/14 ,  F02D41/00 ,  F02D19/06 ,  G01M15/11 ,  F02D41/22 ,  F02D41/30

    CPC classification number: F02D41/0087 ,  F02D19/0623 ,  F02D41/22 ,  F02D41/3058 ,  F02D2200/025 ,  F02D2200/1004 ,  F02D2200/101 ,  F02D2200/1012 ,  F02D2200/1015 ,  F02D2250/14 ,  G01M15/11

    Abstract: A variety of methods and arrangements for detecting misfire in a skip fire engine control system are described. In one aspect, a window is assigned to a target firing opportunity for a target working chamber. A change in an engine parameter is measured during the window. A determination is made as to whether a firing opportunity before the target firing opportunity is a skip or a fire and/or whether a firing opportunity after the target firing opportunity is a skip or a fire. Based at least in part on this skip/fire determination, a determination is made as to whether the target working chamber has misfired. In various embodiments, if the target working chamber is identified as persistently misfiring, the firing sequence is modified so that the target working chamber is deactivated and excluded from the firing sequence. In still other embodiments, a torque model is used to detect engine-related problems.

    Abstract translation: 描述了用于检测跳火消防车控制系统中的失火的各种方法和装置。 在一个方面，将窗口分配给目标工作室的目标发射机会。 在窗口期间测量发动机参数的变化。 确定目标射击机会之前的射击机会是否是跳跃或火灾，和/或目标射击机会之后的射击机会是否是跳跃或火灾。 至少部分地基于该跳过/确定，确定目标工作室是否失火。 在各种实施例中，如果目标工作室被识别为持续地失火，则对燃烧序列进行修改，使得目标工作室被停用并从烧制序列中排除。 在其他实施例中，使用扭矩模型来检测发动机相关问题。

    Look-up table based skip fire engine control
    329.
    发明授权
    Look-up table based skip fire engine control 有权
    基于查找表的跳过消防车控制

    公开(公告)号：US09200587B2

    公开(公告)日：2015-12-01

    申请号：US13774134

    申请日：2013-02-22

    Applicant: Tula Technology, Inc.

    Inventor： Louis J. Serrano

    IPC: F02D45/00 ,  F02D41/00 ,  F02D11/10

    CPC classification number: F02D45/00 ,  F02D11/105 ,  F02D41/0087

    Abstract: A variety of skip fire engine controllers and control methods are described that utilize look-up tables, state machines, or other data structures to determine the sequence or ordering of skip-fire firings. In one aspect, a skip fire engine controller utilizes a look-up table to determine when firings are appropriate to deliver a desired engine output. In some embodiments, a firing timing controller tracks a value indicative of the portion of a firing that has been requested, but not yet directed and such information is utilized in the determination of the timing of the firings. The accumulator value is particularly useful when transitioning between different requested firing fractions.

    Abstract translation: 描述了使用查找表，状态机或其他数据结构来确定跳火发射的顺序或排序的各种跳火消防车控制器和控制方法。 在一个方面，跳跃式消防车控制器利用查找表来确定何时发射适合于发送期望的发动机输出。 在一些实施例中，点火定时控制器跟踪指示已经被请求但还没有指示的点火部分的值，并且这种信息用于确定发射的定时。 累加器值在不同要求的点火分数之间转换时特别有用。

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