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公开(公告)号：US20200088151A1
公开(公告)日：2020-03-19
申请号：US16694621
申请日：2019-11-25
Applicant: Tula Technology, Inc.
Inventor： Elliot A. ORTIZ-SOTO , Matthew A. YOUNKINS
Abstract: Methods, devices, controllers, and algorithms are described for operating an internal combustion engine wherein at least some firing opportunities utilize low temperature gasoline combustion (LTGC). Other firing opportunities may be skipped or utilize some other type of combustion, such as spark ignition. The nature of any particular firing opportunity is dynamically determined during engine operation, often on a firing opportunity by firing opportunity basis. Firings that utilize LTGC produce little, if any, nitrous oxides in the exhaust stream and thus, in some implementations, may require no aftertreatment system to remove them from the exhaust stream.
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公开(公告)号：US20190055894A1
公开(公告)日：2019-02-21
申请号：US16165757
申请日：2018-10-19
Applicant: Tula Technology, Inc.
Inventor： Louis J. SERRANO , Vijay SRINIVASAN , Geoffrey ROUTLEDGE , Mark A. SHOST , Biswa R. GHOSH , Mark A. WILCUTTS , Matthew A. YOUNKINS , Ying REN
IPC: F02D41/00 , F02D17/02 , F02P5/15 , F02D13/02 , F02D41/10 , F02D41/12 , F01L1/047 , F02D41/26 , F02D13/06 , F02D41/04 , G10K11/16
Abstract: Systems and methods for reducing noise or vibration generated by an internal combustion engine are described. An engine controller is arranged to operate the working chambers of the engine in a cylinder output level modulation manner A noise/vibration reduction unit actively control of a device that is not a part of the powertrain. The device is controlled in a feed forward manner to alter an NVH characteristic of the vehicle in a desired manner based at least in part on a characteristic of the cylinder output level modulation operation of the engine.
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公开(公告)号：US20180266347A1
公开(公告)日：2018-09-20
申请号：US15982406
申请日：2018-05-17
Applicant: Tula Technology, Inc.
Inventor： Jerry F. FUSCHETTO , Matthew A. YOUNKINS , Ihab S. SOLIMAN , Mark WILCUTTS
CPC classification number: F02D41/0087 , F02D13/0207 , F02D13/06 , F02D41/0085 , F02D41/123 , F02D41/1406 , F02D2041/0012 , F02D2041/1412 , F02D2041/1433 , F02D2200/1004 , F02D2250/18 , Y02T10/18
Abstract: Various methods and arrangements for improving fuel economy and noise, vibration, and harshness (NVH) in a skip fire controlled engine are described. An engine controller dynamically selects a gas spring type for a skipped firing opportunity. Determination of the skip/fire pattern and gas spring type may be made on a firing opportunity by firing opportunity basis.
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公开(公告)号：US20180246511A1
公开(公告)日：2018-08-30
申请号：US15963889
申请日：2018-04-26
Applicant: Tula Technology, Inc.
Inventor： Ram SUBRAMANIAN , Louis J. SERRANO , Matthew A. YOUNKINS
CPC classification number: G05D1/0061 , B60W30/1882 , F02D11/105 , F02D17/02 , F02D29/02 , F02D41/0087 , F02D41/1402 , F02D2200/501 , F02D2250/18 , F02P5/1512 , G05D1/0005
Abstract: The present invention relates generally to techniques for improving fuel efficiency of a vehicle powered by an internal combustion engine capable of operating at various displacement levels. An autonomous driving unit or cruise controller selects when possible an engine torque output that corresponds to a fuel efficient displacement level. The resultant vehicle speed profile and NVH level is acceptable to vehicle occupants.
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公开(公告)号：US20170009729A1
公开(公告)日：2017-01-12
申请号：US15274029
申请日：2016-09-23
Applicant: Tula Technology, Inc.
Inventor： Matthew A. YOUNKINS , Louis J. SERRANO
CPC classification number: F02D41/0087 , F01L1/047 , F02D11/02 , F02D13/0223 , F02D13/0273 , F02D13/06 , F02D17/02 , F02D41/0002 , F02D41/008 , F02D41/04 , F02D41/107 , F02D41/123 , F02D41/26 , F02D2041/001 , F02D2041/0012 , F02D2250/18 , F02P5/145 , F02P5/1502 , Y02T10/142 , Y02T10/42
Abstract: In one aspect, a method for controlling operation of an internal combustion engine is described. The engine is operated in a skip fire manner such that selected skipped working cycles are skipped and selected active working cycles are fired to deliver a desired engine output. A particular level of torque output is selected for each of the fired working chambers. Various methods, arrangements and systems related to the above method are also described.
Abstract translation: 一方面，对内燃机的运转控制方法进行说明。 发动机以跳火方式操作，使得跳过所选择的跳过的工作循环并且激发选择的主动工作循环以输送期望的发动机输出。 对于每个烧制工作室选择特定水平的扭矩输出。 还描述了与上述方法相关的各种方法，布置和系统。
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Patent Agency Ranking
16.发明申请公开(公告)号：US20150192080A1
公开(公告)日：2015-07-09
申请号：US14582008
申请日：2014-12-23
Applicant: Tula Technology Inc.
Inventor： Matthew A. YOUNKINS , John W. PARSELS , Joel D. VAN ESS , Siamak HASHEMI
CPC classification number: F02D41/0087 , F02D2041/0012 , F02P17/12 , F02P2017/123
Abstract: A variety of methods and arrangements for determining whether a high pressure exhaust spring is present in a cylinder of an internal combustion engine are described. For spark ignition engines, the electrical properties of the spark plug spark gap may be used to determine whether a high pressure exhaust spring is present.
Abstract translation: 描述了用于确定高压排气弹簧是否存在于内燃机的气缸中的各种方法和装置。 对于火花点火发动机，可以使用火花塞火花隙的电气特性来确定是否存在高压排气弹簧。
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17.发明申请公开(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
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。
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公开(公告)号：US20220112827A1
公开(公告)日：2022-04-14
申请号：US17561468
申请日：2021-12-23
Applicant: Tula Technology, Inc.
Inventor： Matthew A. YOUNKINS , Shikui Kevin CHEN
Abstract: System and methods are described for optimizing exhaust flow rate and temperature during specified operational periods warm-up and keep-warm conditions, by minimizing or maximizing heat flux during those specified operational periods.
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公开(公告)号：US20210404364A1
公开(公告)日：2021-12-30
申请号：US17459776
申请日：2021-08-27
Applicant: Tula Technology, Inc.
Inventor： Matthew A. YOUNKINS , Shikui Kevin CHEN
Abstract: System and methods are described for optimizing exhaust flow rate and temperature during specified operational periods warm-up and keep-warm conditions, by minimizing or maximizing heat flux during those specified operational periods.
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公开(公告)号：US20200218258A1
公开(公告)日：2020-07-09
申请号：US16822741
申请日：2020-03-18
Applicant: Tula Technology, Inc.
Inventor： Ram SUBRAMANIAN , Louis J. SERRANO , Matthew A. YOUNKINS
Abstract: The present invention relates generally to techniques for improving fuel efficiency of a vehicle powered by an internal combustion engine capable of operating at various displacement levels. An autonomous driving unit or cruise controller selects when possible an engine torque output that corresponds to a fuel efficient displacement level. The resultant vehicle speed profile and NVH level is acceptable to vehicle occupants.
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