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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。

    DRIVE TRAIN SLIP FOR VIBRATION MITIGATION DURING SKIP FIRE OPERATION
    3.
    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。

    ENGINE DIAGNOSTICS WITH SKIP FIRE CONTROL
    5.
    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：US20140261309A1

    公开(公告)日：2014-09-18

    申请号：US14206918

    申请日：2014-03-12

    Applicant: Tula Technology Inc.

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

    IPC: F02D17/02

    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。

    CONTROL OF MANIFOLD VACUUM IN SKIP FIRE OPERATION
    6.
    发明申请
    CONTROL OF MANIFOLD VACUUM IN SKIP FIRE OPERATION 有权
    拆卸真空灭火器在飞行员操作中的控制

    公开(公告)号：US20140041641A1

    公开(公告)日：2014-02-13

    申请号：US13961701

    申请日：2013-08-07

    Applicant: Tula Technology, Inc.

    Inventor： Steven E. CARLSON ,  Xin YUAN ,  Joshua P. SWITKES ,  Louis J. SERRANO

    IPC: F02M25/08

    CPC classification number: F02M25/08 ,  F02D17/02 ,  F02D29/02 ,  F02D41/003 ,  F02D41/0087 ,  F02D2009/024 ,  F02D2250/08 ,  F02D2250/41 ,  F02M25/089 ,  F02M35/10222 ,  F02M35/10229

    Abstract: A variety of methods and arrangements are described for selectively reducing intake manifold pressure in a skip fire engine control system. In some embodiments, a throttle is adjusted to generate a manifold vacuum, which is used for various applications, including but not limited to purging a fuel vapor canister, reducing pressure within a brake vacuum booster reservoir and/or venting gas from a crankcase interior. An engine firing fraction is increased to help maintain a desired torque level. Other techniques for reducing the intake manifold pressure are also described, such as applications involving a return to idle.

    Abstract translation: 描述了各种方法和布置，用于选择性地减少跳火消防车控制系统中的进气歧管压力。 在一些实施例中，调节节气门以产生歧管真空，其用于各种应用，包括但不限于清除燃料蒸汽罐，降低制动真空助力器容器内的压力和/或从曲轴箱内部排出气体。 发动机点火分数增加以帮助保持期望的转矩水平。 还描述了用于降低进气歧管压力的其它技术，例如涉及返回空转的应用。

    DRIVE TRAIN SLIP FOR VIBRATION MITIGATION DURING SKIP FIRE OPERATION
    7.
    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
    8.
    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。

    SKIP FIRE ENGINE CONTROL
    9.
    发明申请
    SKIP FIRE ENGINE CONTROL 有权
    飞行消防发动机控制

    公开(公告)号：US20130118443A1

    公开(公告)日：2013-05-16

    申请号：US13723169

    申请日：2012-12-20

    Applicant: Tula Technology, Inc.

    Inventor： Adya S. TRIPATHI ,  Joshua P. SWITKES ,  Mohammad R. PIRJABERI ,  Christopher W. CHANDLER

    IPC: F02D17/02

    CPC classification number: F02D17/02 ,  F02D37/02 ,  F02D41/0087 ,  F02D41/1401 ,  F02D41/1402 ,  F02D41/266 ,  F02D2041/2027 ,  F02D2200/602 ,  F02D2250/18 ,  F02D2400/02 ,  F02P5/1512 ,  Y02T10/142 ,  Y02T10/46

    Abstract: A variety of skip fire engine controllers and control techniques are described. In some preferred embodiments, a skip fire engine controller is provided that includes a firing fraction calculator, an engine settings controller, a firing fraction adjuster and a firing controller. The firing fraction calculator determines a reference firing fraction indicative of a firing fraction suitable for delivering a desired engine output at a reference working chamber firing output. The engine settings controller is arranged to set selected engine settings. The firing fraction adjuster determines an adjusted firing fraction that scales the reference firing fraction appropriately such that the engine will deliver the desired engine output at the current engine settings even when the actual working chamber firing outputs do not equal the reference working chamber firing output. The firing controller direct workings chamber firings in a skip fire manner that delivers the adjusted firing fraction.

    Abstract translation: 描述了各种跳火消防车控制器和控制技术。 在一些优选实施例中，提供了一种跳火消防车控制器，其包括点火分数计算器，发动机设置控制器，点火分数调节器和点火控制器。 点火分数计算器确定指示在基准工作室点火输出下适合输送所需发动机输出的点火分数的参考点火分数。 引擎设置控制器被设置为设置所选择的引擎设置。 点火分数调节器确定调节的燃烧分数，适当地缩放参考燃烧分数，使得即使当实际工作室燃烧输出不等于参考工作室点火输出时，发动机也将在当前发动机设置下输送期望的发动机输出。 射击控制器直接工作室以跳火的方式发射，从而提供调节的燃烧分数。

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