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    NOISE, VIBRATION AND HARSHNESS REDUCTION IN A SKIP FIRE ENGINE CONTROL SYSTEM
    51.
    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。

    Engine braking controller
    52.
    发明授权
    Engine braking controller 有权
    发动机制动控制器

    公开(公告)号：US09328672B2

    公开(公告)日：2016-05-03

    申请号：US13953615

    申请日：2013-07-29

    Applicant: Tula Technology, Inc.

    Inventor： Louis J. Serrano ,  Steven E. Carlson ,  Joshua P. Switkes ,  Ronald D. Yuille

    IPC: F02D13/04 ,  F02D41/00 ,  F02D17/02 ,  F02D41/12 ,  F02D13/02

    CPC classification number: F02D17/02 ,  F02D13/0203 ,  F02D13/04 ,  F02D41/0005 ,  F02D41/0087 ,  F02D41/123

    Abstract: In one aspect of the invention, an engine is operated in a skip cylinder engine braking mode. In the skip cylinder engine braking mode, selected working cycles of selected working chambers are deactivated. Other selected working cycles of the selected working chambers are operated in a braking mode. Accordingly, individual working chambers are sometimes deactivated and sometimes operated in the braking mode while the engine is operating in the skip cylinder engine braking mode. Various methods for cylinder control are described, which improve fuel economy, catalytic converter performance, and vehicle NVH characteristics.

    Abstract translation: 在本发明的一个方面，发动机以跳过气缸发动机制动模式操作。 在跳过气缸发动机制动模式下，所选择的工作室的选定工作循环被停用。 所选择的工作室的其他选定的工作循环在制动模式下操作。 因此，当发动机以跳过气缸发动机制动模式运行时，单个工作室有时被停用并且有时在制动模式下操作。 描述了用于气缸控制的各种方法，其提高燃料经济性，催化转化器性能和车辆NVH特性。

    Cam phaser control
    53.
    发明授权
    Cam phaser control 有权
    凸轮移相器控制

    公开(公告)号：US09291106B2

    公开(公告)日：2016-03-22

    申请号：US13842234

    申请日：2013-03-15

    Applicant: Tula Technology, Inc.

    Inventor： Joshua P. Switkes ,  Xin Yuan ,  Matthew A. Younkins

    IPC: F02D13/02 ,  F02D13/06 ,  F02D41/00 ,  F01L1/344 ,  F01L13/00

    CPC classification number: F02D13/0219 ,  F01L1/344 ,  F01L1/34409 ,  F01L2013/001 ,  F01L2800/00 ,  F01L2800/15 ,  F01L2820/01 ,  F02D13/06 ,  F02D41/0087 ,  F02D2041/001 ,  F02D2041/0012 ,  Y02T10/18

    Abstract: Arrangements for stabilizing valve timing adjustment mechanisms such as cam phasers during operation of an engine are described. The described approaches are particularly well suited for use during skip fire control, although they may be used advantageously in other applications as well. In general, the phase of an adjustable phase camshaft is controlled relative to a crankshaft of an engine. In one aspect, at least one of (i) firing events in a skip fire firing sequence, and (ii) dynamically determined valve actuation events are used in the control of the camshaft phase during operation of the engine. In some embodiments, hydraulic pressure within a cam phaser is varied in a manner that maintains the phase of the camshaft substantially more stable through transitory variations in torque applied to the camshaft by the actuation of the valves than would occur without the variations in hydraulic pressure.

    Abstract translation: 描述了在发动机运行期间稳定气门正时调节机构（例如凸轮相位器）的布置。 所描述的方法特别适用于跳过火控制期间的使用，尽管它们也可有利地用于其它应用中。 通常，相对于发动机的曲轴控制可调节相位凸轮轴的相位。 在一个方面中，在发动机运转期间，在（i）点火点火顺序中的点火事件和（ii）动态确定的气门致动事件中的至少一个被用于控制凸轮轴相位。 在一些实施例中，凸轮相位器内的液压变化的方式是通过阀的致动而不会在没有液压变化的情况下施加到凸轮轴上的扭矩的瞬时变化来保持凸轮轴的相位的稳定。

    NOISE/VIBRATION REDUCTION CONTROL
    57.
    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。

    SYSTEM AND METHOD FOR SAFE VALVE ACTIVATION IN A DYNAMIC SKIP FIRING ENGINE
    58.
    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。

    Hybrid vehicle with cylinder deactivation
    59.
    发明授权
    Hybrid vehicle with cylinder deactivation 有权
    混合动力汽车停用汽缸

    公开(公告)号：US08892330B2

    公开(公告)日：2014-11-18

    申请号：US13654217

    申请日：2012-10-17

    Applicant: Tula Technology, Inc.

    Inventor： Ronald D. Yuille ,  Mark A. Shost ,  Louis J. Serrano ,  John W. Parsels ,  Matthew A. Younkins

    IPC: G06F17/00 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60K6/485

    CPC classification number: B60W20/50 ,  B60K6/485 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W20/16 ,  B60W2510/244 ,  B60W2710/0666 ,  B60W2710/083 ,  Y02T10/6226 ,  Y02T10/6286 ,  Y02T10/92

    Abstract: A variety of methods and arrangements for operating an internal combustion engine and one or more motor/generators in a hybrid vehicle are described. Generally, the engine is operated in a variable displacement or skip fire mode. Depending on the state of charge of an energy storage device and/or other factors, the engine is operated to generate more or less than a desired level of torque. The one or more motor/generators are used to add or subtract torque so that the motor/generator(s) and the engine collectively deliver the desired level of torque. In some embodiments, the engine may be run with a substantially open throttle to reduce pumping losses and improve fuel efficiency.

    Abstract translation: 描述了用于操作混合动力车辆中的内燃机和一个或多个电动机/发电机的各种方法和装置。 通常，发动机以可变排量或跳火模式操作。 根据能量存储装置的充电状态和/或其他因素，发动机被操作以产生大于或小于期望的扭矩水平。 一个或多个电动机/发电机用于增加或减少转矩，使得电动机/发电机和发动机共同提供所需的扭矩水平。 在一些实施例中，发动机可以以基本上打开的节气门运行，以减少泵送损失并提高燃料效率。

    Skip fire engine control
    60.
    发明授权
    Skip fire engine control 有权
    跳过消防车控制

    公开(公告)号：US08651091B2

    公开(公告)日：2014-02-18

    申请号：US13945289

    申请日：2013-07-18

    Applicant: Tula Technology, Inc.

    Inventor： Adya S. Tripathi ,  Christopher W. Chandler ,  Christopher C. Hand ,  Joshua P. Switkes ,  Mark A. Wilcutts ,  Matthew A. Younkins

    IPC: F02D17/02 ,  F02D41/00

    CPC classification number: F02D17/02 ,  F02D41/0087 ,  F02D41/047

    Abstract: A variety of methods and arrangements for controlling the operation of an internal combustion engine in a skip fire variable displacement mode are described. Generally, an engine is controlled to operate in a skip fire variable displacement mode. In one aspect, the spark timing associated with each fired working cycle is based at least in part on the firing history of the fired working chamber.

    Abstract translation: 描述了用于在跳火可变位移模式中控制内燃机的操作的各种方法和装置。 通常，发动机被控制为以跳火可变排量模式操作。 在一个方面，与每个燃烧的工作循环相关联的火花正时至少部分地基于燃烧的工作室的击发历史。

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