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公开(公告)号：US20150211472A1
公开(公告)日：2015-07-30
申请号：US14568408
申请日：2014-12-12
Applicant: Tula Technology Inc.
Inventor： Steven E. CARLSON
CPC classification number: F02P5/1522 , F02D17/02 , F02D41/0087 , F02D41/027 , F02P5/1523 , Y02T10/46
Abstract: In one aspect, a method for mitigating detonation in a skip fire engine control system is described. The working chambers of the engine are operated in a skip fire manner to deliver a desired torque. One or more detonations are detected in the engine. In response to the detection of the one or more detonations, the spark timing for one or more of the working chambers is retarded. Additionally, the firing fraction used to operate the engine is increased. The increase in the firing fraction helps to compensate for torque lost due to the retarding of the spark timing.
Abstract translation: 一方面，描述了一种用于减轻跳火消防车控制系统中的爆震的方法。 发动机的工作室以跳火方式操作以提供期望的扭矩。 在发动机中检测到一个或多个爆震。 响应于一个或多个爆震的检测，一个或多个工作室的火花正时被延迟。 此外，用于操作发动机的燃烧部分增加。 燃烧分数的增加有助于补偿由于火花正时延迟引起的扭矩损失。
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公开(公告)号：US08880258B2
公开(公告)日：2014-11-04
申请号：US13681378
申请日：2012-11-19
Applicant: Tula Technology, Inc.
Inventor： Leo G. Breton , Ronald D. Yuille , Mark A. Shost , Louis J. Serrano , John W. Parsels , Matthew A. Younkins
CPC classification number: B60W20/10 , B60K6/28 , B60K6/485 , B60W10/06 , B60W10/08 , B60Y2300/435 , B60Y2400/114 , Y02T10/6226 , Y02T10/6286 , Y10S903/93
Abstract: Methods and arrangements for controlling hybrid powertrains are described. In one aspect, an engine is alternatingly operated at different effective displacements. One displacement delivers less than a requested powertrain output and the other delivers more. A motor/generator system is used to add and subtract torque to/from the powertrain to cause the net delivery of the requested powertrain output. In some embodiments, energy added and subtracted from the powertrain is primarily drawn from and stored in a capacitor (e.g., a supercapacitor or an ultracapacitor) when alternating between effective displacements. In another aspect a hybrid powertrain arrangement includes an engine a motor/generator and an energy storage system that includes both a battery and a capacitor. The capacitor stores and delivers electrical energy to the motor/generator unit during operation of the engine in a variable displacement or skip fire mode.
Abstract translation: 描述了控制混合动力系的方法和布置。 在一个方面，发动机以不同的有效位移交替地操作。 一个位移传递小于所请求的动力总成输出，另一个输送更多。 电动机/发电机系统用于向/从动力系增加和减少扭矩，以使得所需动力系统输出的净运送。 在一些实施例中，当在有效位移之间交替时，从动力系中加入和减去的能量主要从电容器（例如超级电容器或超级电容器）中抽出并存储。 在另一方面，一种混合式动力总成装置包括发动机，电动机/发电机和包括电池和电容器的能量存储系统。 电容器在发动机运行中以可变排量或跳火模式存储并向电动机/发电机单元传送电能。
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183.发明申请MANAGING ENGINE FIRING PATTERNS AND PATTERN TRANSITIONS DURING SKIP FIRE ENGINE OPERATION 有权在飞行火花发动机运行期间管理发动机火焰模式和模式转换公开(公告)号：US20140261316A1
公开(公告)日：2014-09-18
申请号：US14203444
申请日：2014-03-10
Applicant: Tula Technology Inc.
Inventor： Mark A. SHOST
IPC: F02D17/02
CPC classification number: F02D17/02
Abstract: Various methods and data structures for managing transition between different firing fractions during skip fire operation of an engine are described. In some embodiments, transitions are constrained to occur when firing sequence segments of a designated length are shared by the first and second firing fractions. In a separate aspect, a data structure that uses current firing fraction phase as a first index and a target firing fraction as a second index may be used to determine a phase of the target firing fraction to enter at a transition. Is some circumstances transitions between a current and target firing fraction may be conducted as a series of steps through intermediate firing fractions.
Abstract translation: 描述了用于管理在发动机的跳火操作期间在不同的点火分数之间的转换的各种方法和数据结构。 在一些实施例中，当第一和第二击发分数共享指定长度的点火序列片段时，限制转变发生。 在单独的方面，可以使用使用当前点火分数相位作为第一指数的数据结构和作为第二指标的目标点火分数，以确定目标燃烧分数在转变时进入的相位。 当前和目标点火分数之间的某些情况转变可以通过中间火花分数进行一系列步骤。
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公开(公告)号：US20140251282A1
公开(公告)日：2014-09-11
申请号：US13794157
申请日：2013-03-11
Applicant: TULA TECHNOLOGY, INC.
Inventor： Allan J. KOTWICKI , Joel D. VAN ESS
IPC: F02D41/00
CPC classification number: F02D41/18 , F02D35/028 , F02D2200/0402 , F02D2200/0408
Abstract: In one aspect, an engine controller for an engine including multiple working chambers is described. The engine controller includes a mass air charge determining unit that estimates a mass air charge or amount of air to be delivered to a working chamber. Firing decisions made for a firing window of one or more firing opportunities are used to help determine the mass air charge. The engine controller also includes a firing controller, which is arranged to direct firings to deliver a desired output. Fuel is delivered to a working chamber based on the estimated mass air charge.
Abstract translation: 在一个方面，描述了一种用于包括多个工作室的发动机的发动机控制器。 发动机控制器包括质量空气充量确定单元，其估计要输送到工作室的空气质量或空气量。 用于对一个或多个发射机会的发射窗口进行的射击决定用于帮助确定大量空中燃料。 发动机控制器还包括点火控制器，其被布置成引导发射以输送期望的输出。 燃料根据估计的空气质量被运送到工作室。
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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。
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Patent Agency Ranking
公开(公告)号：US08499743B2
公开(公告)日：2013-08-06
申请号：US13723169
申请日：2012-12-20
Applicant: Tula Technology, Inc.
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方式发射，从而提供调整后的射击分数。
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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.
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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公开(公告)号：US20240191667A1
公开(公告)日：2024-06-13
申请号：US18582574
申请日：2024-02-20
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： J. Steven Kolhouse , David Langenderfer , David Schmidt , Vijay Srinivasan
CPC classification number: F02D41/029 , F02D41/0087 , F02D41/1448 , F02D41/1454 , F01N3/0233 , F01N3/0864 , F01N9/002 , F01N9/005 , F01N11/002 , F01N11/005 , F01N2430/02 , F01N2430/06 , F01N2430/08 , F01N2430/085 , F01N2430/10 , F01N2550/04 , F01N2560/025 , F01N2900/0418 , F01N2900/0421 , F01N2900/0422 , F01N2900/1606 , F01N2900/1611 , F01N2900/1806 , F02D2200/021 , F02D2200/701
Abstract: A system includes an exhaust aftertreatment system including a particulate filter and a controller. The controller is configured to: receive information comprising a temperature regarding a filter of the aftertreatment system; and responsive to determining that the temperature regarding the filter is below a temperature threshold, command the engine to operate according to a first firing fraction. The first firing fraction may define a number of active cylinders of the engine relative to a total number of cylinders of the engine, and correspond to a predetermined temperature value of the filter.
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189.发明公开公开(公告)号：US20240141845A1
公开(公告)日：2024-05-02
申请号：US18497688
申请日：2023-10-30
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： Kunpeng Wang , Ke Wang , Yuan Zoe , Zhou Cao
CPC classification number: F02D41/024 , F02D41/0087 , F02D41/18 , F02D2041/1412 , F02D2200/0802
Abstract: Systems and methods for aftertreatment system thermal management using cylinder deactivation and/or intake-air throttling are disclosed. Systems and methods for thermal management of an aftertreatment system are provided herein. A controller coupled to an engine and an exhaust aftertreatment system is configured to: receive a first temperature value associated with the exhaust aftertreatment system and a second temperature value associated with the engine; determine, based on comparing the first temperature value to a first threshold, a thermal management mode including a first thermal management mode or a second thermal management mode; determine, responsive to determining the thermal management mode and based on comparing the second temperature value to a second threshold, an operating mode for the thermal management mode including at least one of a first operating mode or a second operating mode; and initiate the at least one of the first or the second operating mode.
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公开(公告)号：US11761395B2
公开(公告)日：2023-09-19
申请号：US17742070
申请日：2022-05-11
Applicant: Tula Technology, Inc.
Inventor： Vijay Srinivasan
CPC classification number: F02D41/0087 , F02D13/06 , F02D17/02 , F02D41/307 , F02D41/3064 , F02D41/401 , F01L2013/001 , F02D2250/21
Abstract: A variety of methods and arrangements are described for managing transitions between operational states of an internal combustion engine during skip fire operation of the engine.
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