中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

30 records (took 0.022 seconds)

    DRIVE TRAIN SLIP FOR VIBRATION MITIGATION DURING SKIP FIRE OPERATION
    11.
    发明申请
    DRIVE TRAIN SLIP FOR VIBRATION MITIGATION DURING SKIP FIRE OPERATION 审中-公开
    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：US20160159364A1

    公开(公告)日：2016-06-09

    申请号：US15046175

    申请日：2016-02-17

    Applicant: Tula Technology, Inc.

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

    IPC: B60W30/20 ,  B60W10/02 ,  B60W10/08

    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。

    SPLIT BANK AND MULTIMODE SKIP FIRE OPERATION
    12.
    发明申请
    SPLIT BANK AND MULTIMODE SKIP FIRE OPERATION 有权
    拆分银行和多模式跳闸消防

    公开(公告)号：US20140041630A1

    公开(公告)日：2014-02-13

    申请号：US13963759

    申请日：2013-08-09

    Applicant: Tula Technology, Inc.

    Inventor： Steven E. CARLSON ,  Xin YUAN ,  Louis J. SERRANO ,  Joshua P. SWITKES ,  Biswa R. GHOSH ,  Norman C. LO

    IPC: F02P9/00

    CPC classification number: F02P9/00 ,  F02D41/0082 ,  F02D41/0087 ,  F02D41/1402 ,  F02D41/3058 ,  F02D2200/602 ,  F02P5/1506 ,  F02P7/02 ,  Y02T10/46

    Abstract: Various methods and arrangements for operating a skip fire engine control system are described. In one aspect of the invention, a distinct firing sequence is determined for each bank of working chambers that is used to operate the bank in a skip fire manner. Each firing sequence uses a different firing fraction. In another aspect of the invention, a determination is made as to whether a firing sequence should be dynamically generated or selected from a set of predefined firing sequences.

    Abstract translation: 描述了用于操作跳火消防车控制系统的各种方法和装置。 在本发明的一个方面中，针对用于以跳火方式操作银行的每一组工作室确定了不同的点火顺序。 每个射击序列使用不同的射击分数。 在本发明的另一方面中，确定是否应从一组预定义的触发序列中动态生成或选择点火序列。

    NOISE, VIBRATION AND HARSHNESS REDUCTION IN A SKIP FIRE ENGINE CONTROL SYSTEM
    14.
    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。

    CAM PHASER CONTROL
    17.
    发明申请
    CAM PHASER CONTROL 有权
    相机控制

    公开(公告)号：US20140277999A1

    公开(公告)日：2014-09-18

    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

    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。

    TRANSITORY TORQUE MODIFICATIONS USING SKIP FIRE CONTROL
    18.
    发明申请
    TRANSITORY TORQUE MODIFICATIONS USING SKIP FIRE CONTROL 有权
    使用跳过火灾控制的异动转矩修正

    公开(公告)号：US20140045652A1

    公开(公告)日：2014-02-13

    申请号：US13963744

    申请日：2013-08-09

    Applicant: Tula Technology, Inc.

    Inventor： Steven E. CARLSON ,  Xin YUAN ,  Joshua P. SWITKES ,  Li-Chun CHIEN

    IPC: B60W10/06 ,  B60W10/11

    CPC classification number: B60W10/06 ,  B60W10/11 ,  B60W30/19 ,  F02D41/0087 ,  F02D41/023 ,  F02D41/1497 ,  F02D2250/18 ,  F02D2250/21 ,  F02P5/1504 ,  F02P5/1512 ,  F02P9/005 ,  F16H63/502 ,  Y02T10/46 ,  Y10T477/677

    Abstract: Methods and devices are described that utilize skip fire techniques to rapidly meet requests for transitory changes in the output of an engine. Specifically, the fraction or percentage of the working cycles that are fired can be changed during a transitory event so that the engine delivers the desired transitory engine output. Once the transitory event is over, normal engine operation may be restored. The described techniques are useful in a variety of applications that require a relatively quick, but transitory, reduction in engine output to meet vehicle control requirements. One particularly useful application is during transmission shift events. Other representative applications include: loss of traction events, stability control events, wheel hop prevention events, etc.

    Abstract translation: 描述了利用跳火技术快速满足对发动机的输出的暂时变化的请求的方法和装置。 具体地说，在瞬态事件期间可以改变被激发的工作循环的分数或百分比，以便发动机输出期望的暂时发动机输出。 一旦暂时事件结束，可以恢复正常的发动机运转。 所描述的技术在各种应用中是有用的，其需要相对快速但短暂的发动机输出的降低以满足车辆控制要求。 一个特别有用的应用是传输移位事件。 其他代表性应用包括：牵引事件的损失，稳定性控制事件，防止跳闸事件等。

Patent Agency Ranking