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公开(公告)号：US20170122237A1
公开(公告)日：2017-05-04
申请号：US15401516
申请日：2017-01-09
Applicant: Tula Technology, Inc.
Inventor： Adya S. TRIPATHI , Chester J. SILVESTRI , Christopher W. CHANDLER , Christopher C. HAND , Joshua P. SWITKES , Mark A. WILCUTTS , Matthew A. YOUNKINS
CPC classification number: F02D41/0087 , F02B75/02 , F02B2075/027 , F02D13/06 , F02D17/02 , F02D37/02 , F02D41/1401 , F02D41/26 , F02D41/266 , F02D41/30 , F02D2200/0614 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/045 , F02P5/1512 , Y02T10/46
Abstract: A variety of methods and arrangements for improving the fuel efficiency of internal combustion engines based on skip fire operation of the engine are described. In one aspect the skip fire decisions are made on a working cycle by working cycle basis. During selected skipped working cycles, the corresponding cylinders are deactivated such that air is not pumped through the cylinder during the selected skipped working cycles. In some implementations, the cylinders are deactivated by holding associated intake and exhaust valves closed such that an air charge is not present in the working chamber during the selected skipped working cycles.
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公开(公告)号：US20180216541A1
公开(公告)日：2018-08-02
申请号：US15937538
申请日：2018-03-27
Applicant: Tula Technology, Inc.
Inventor： Mohammad R. PIRJABERI , Adya S. TRIPATHI , Louis J. SERRANO
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.
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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：US20150267674A1
公开(公告)日：2015-09-24
申请号：US14729973
申请日：2015-06-03
Applicant: Tula Technology, Inc.
Inventor： Adya S. TRIPATHI , Chester J. SILVESTRI
CPC classification number: F02D41/0087 , F02B75/02 , F02B2075/027 , F02D13/06 , F02D17/02 , F02D37/02 , F02D41/1401 , F02D41/26 , F02D41/266 , F02D41/30 , F02D2200/0614 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/045 , F02P5/1512 , Y02T10/46
Abstract: A variety of methods and arrangements for improving the fuel efficiency of internal combustion engines based on skip fire operation of the engine are described. In one aspect the skip fire decisions are made on a working cycle by working cycle basis. During selected skipped working cycles, the corresponding cylinders are deactivated such that air is not pumped through the cylinder during the selected skipped working cycles. In some implementations, the cylinders are deactivated by holding associated intake and exhaust valves closed such that an air charge is not present in the working chamber during the selected skipped working cycles.
Abstract translation: 描述了基于发动机的跳火操作来提高内燃机的燃料效率的各种方法和装置。 在一个方面，跳过的火灾决定是在工作循环的基础上进行的。 在选择的跳过工作循环期间，相应的气缸被停用，使得在所选择的跳过工作循环期间空气不被泵送通过气缸。 在一些实施方案中，气缸通过保持关联的进气和排气阀而关闭，使得在所选择的跳过的工作循环期间在工作室中不存在空气装料。
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公开(公告)号：US20130066502A1
公开(公告)日：2013-03-14
申请号：US13672466
申请日：2012-11-08
Applicant: Tula Technology Inc.
Inventor： Ronald D. YUILLE , Mark A. SHOST , Louis J. SERRANO , Adya S. TRIPATHI
CPC classification number: B60W20/00 , B60K6/48 , B60W10/06 , B60W10/08 , B60W20/16 , B60W2510/244 , B60W2710/0666 , F02D17/02 , F02D37/02 , F02D41/0002 , F02D41/0087 , F02D41/1401 , F02D41/1402 , F02D41/266 , F02D2041/2027 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/1512 , Y02T10/42 , Y02T10/46 , Y02T10/6221
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. In various embodiments, the engine is operated in a 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。 在各种实施例中，发动机以跳火模式操作。 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。
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Patent Agency Ranking
公开(公告)号：US20210199060A1
公开(公告)日：2021-07-01
申请号：US17192252
申请日：2021-03-04
Applicant: Tula Technology, Inc.
Inventor： Mohammad R. PIRJABERI , Adya S. TRIPATHI , Louis J. SERRANO
Abstract: Engine controllers and methods are described that facilitate skip fire control of an internal combustion engine. An engine controller determines a skip fire firing fraction and (as appropriate) associated engine settings that are suitable for delivering a requested output. The engine controller selects an operational firing fraction from a set of available firing fractions. A firing controller then directs cylinder firings in a skip fire manner that delivers the selected operational firing fraction. The firing controller includes an accumulator that helps smooth transitions between different firing fractions.
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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
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。
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公开(公告)号：US20140172272A1
公开(公告)日：2014-06-19
申请号：US14188479
申请日：2014-02-24
Applicant: Tula Technology, Inc.
Inventor： Adya S. TRIPATHI , Chester J. SILVESTRI
IPC: F02D37/02
CPC classification number: F02D41/0087 , F02B75/02 , F02B2075/027 , F02D13/06 , F02D17/02 , F02D37/02 , F02D41/1401 , F02D41/26 , F02D41/266 , F02D41/30 , F02D2200/0614 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/045 , F02P5/1512 , Y02T10/46
Abstract: A variety of methods and arrangements for improving the fuel efficiency of internal combustion engines based on skip fire operation of the engine are described.
Abstract translation: 描述了基于发动机的跳火操作来提高内燃机的燃料效率的各种方法和装置。
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公开(公告)号：US20130298870A1
公开(公告)日：2013-11-14
申请号：US13945289
申请日：2013-07-18
Applicant: Tula Technology, Inc.
Inventor： Adya S. TRIPATHI , Chester J. SILVESTRI , Christopher W. CHANDLER , Christopher C. HAND , Joshua P. SWITKES , Mark A. WILCUTTS
IPC: F02D17/02
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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公开(公告)号：US20130092128A1
公开(公告)日：2013-04-18
申请号：US13654248
申请日：2012-10-17
Applicant: Tula Technology, Inc.
Inventor： Mohammad R. PIRJABERI , Adya S. TRIPATHI
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。
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