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公开(公告)号：US20170218866A1
公开(公告)日：2017-08-03
申请号：US15487127
申请日：2017-04-13
Applicant: Tula Technology, Inc.
Inventor： Mark A. SHOST , Matthew A. YOUNKINS
CPC classification number: F02D41/0082 , F01L1/146 , F01L1/185 , F01L1/34 , F01L13/0005 , F01L13/0026 , F01L2013/001 , F01L2013/0068 , F01L2013/0073 , F01L2013/103 , F01L2105/00 , F01L2800/08 , F01L2820/01 , F02B75/20 , F02B2075/1816 , F02D13/06 , F02D17/02 , F02D41/0002 , F02D41/0087 , F02D2041/0012 , Y02T10/18 , Y02T10/42
Abstract: Internal combustion engine having cam actuated valves that can be controlled to facilitate the use of different air charge levels in different cylinders or sets of cylinders are described. In one aspect a first set of cylinders is operated in a skip fire manner in which the corresponding cylinders are deactivated during skipped working cycles. Cam actuated intake valves associated with a second set of cylinders are operated differently so that the air charge in the cylinders in the second set is different than the air charge in fired cylinders subject to the skip fire control. According to another aspect, an engine having cam actuated intake valves is operated in a dynamic firing level modulation mode. During the dynamic firing level modulation operation, the cam actuated intake valves are controlled in at least two different manners to such that different cylinder working cycles have different air charges.
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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
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。
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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：US20150100221A1
公开(公告)日：2015-04-09
申请号：US14509792
申请日：2014-10-08
Applicant: Tula Technology Inc.
Inventor： Geoffrey ROUTLEDGE , Mark A. SHOST , Biswa R. GHOSH , Louis J. SERRANO , Mark WILCUTTS
Abstract: In one aspect, a system for reducing noise or vibration generated by an internal combustion engine is described. An engine controller is arranged to generate firing information suitable for operating the working chambers of the engine in a skip fire manner to deliver a desired amount of torque. A noise/vibration reduction unit is arranged to help reduce noise or vibration based on the firing information. The noise/vibration controller actively controls a device that is not a part of the engine to alter an NVH characteristic of the vehicle in a desired manner based at least in part on a skip fire characteristic.
Abstract translation: 在一个方面，描述了一种用于降低由内燃机产生的噪音或振动的系统。 发动机控制器布置成产生适于以跳火方式操作发动机的工作室的发射信息，以输送期望的扭矩量。 噪声/减振单元被布置成基于发射信息来帮助减少噪声或振动。 噪声/振动控制器主动地控制不是发动机的一部分的装置，至少部分地基于跳火特性，以期望的方式改变车辆的NVH特性。
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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：US20180163650A1
公开(公告)日：2018-06-14
申请号：US15894548
申请日：2018-02-12
Applicant: Tula Technology, Inc.
Inventor： Louis J. SERRANO , Vijay SRINIVASAN , Geoffrey ROUTLEDGE , Mark A. SHOST , Biswa R. GHOSH , Mark A. WILCUTTS , Matthew A. YOUNKINS
IPC: F02D41/00 , F02D13/02 , F02D41/04 , F02D13/06 , F02P5/15 , F02D41/26 , F01L1/047 , F02P5/145 , F02D41/12 , F02D41/10 , F02D17/02
CPC classification number: F02D41/0087 , F01L1/047 , 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 , F02N11/0837 , F02P5/145 , F02P5/15 , F02P5/1502 , F02P9/002 , F16F15/02 , G10K11/16 , G10K11/1785 , G10K11/17883 , G10K2210/1282 , G10K2210/3211 , G10K2210/3212 , Y02T10/142 , Y02T10/42
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：US20170350331A1
公开(公告)日：2017-12-07
申请号：US15171931
申请日：2016-06-02
Applicant: Tula Technology, Inc. , FCA US LLC
Inventor： Mark A. SHOST , Ihab S. SOLIMAN , James J. DALEY
CPC classification number: F02D41/0085 , F02D13/06 , F02D17/00 , F02D17/02 , F02D29/02 , F02D41/008 , F02D41/0087 , F02D41/26 , F02D2041/0012 , F02D2200/1004
Abstract: In one aspect, a method is described. An operational engine torque is calculated. The engine is operated in a skip fire manner to deliver the operational engine torque. A reference engine torque is calculated using a torque model. The torque model involves estimating torque at a working chamber level. The reference engine torque is compared to the calculated operational engine torque to assess the accuracy of the operational engine torque calculation. Various embodiments of the present invention involve software, devices, systems and engine controllers that are related to one or more of the above operations.
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8.发明申请公开(公告)号：US20150260117A1
公开(公告)日：2015-09-17
申请号：US14638908
申请日：2015-03-04
Applicant: Tula Technology Inc. , GM Global Technology Operations LLC
Inventor： Mark A. SHOST , Louis J. SERRANO , Steven E. CARLSON , Vijay SRINIVASAN , Eric J. DEFENDERFER , Nitish J. WAGH , Randall S. BEIKMANN , Jinbiao LI , Xin YUAN , Li-Chun CHIEN
CPC classification number: F02D41/0087 , F02D17/02 , F02D41/0225 , F02D41/1406 , F02D41/2422 , F02D2200/101
Abstract: In one aspect, a skip fire engine controller is described. The skip fire engine controller includes a skip fire module arranged to determine an operational firing fraction and associated cylinder load for delivering a desired engine output. The skip fire engine controller also includes a firing controller arranged to direct firings in a skip fire manner that delivers the selected operational firing fraction. Various methods, modules, lookup tables and arrangements related to the selection of a suitable operational firing fraction are also described.
Abstract translation: 在一个方面，描述了一个跳过消防车控制器。 跳过消防车控制器包括跳过火模块，其被布置成确定用于输送所需发动机输出的操作点火分数和相关联的气缸负载。 跳过消防车控制器还包括点火控制器，其布置成以能够提供所选择的操作射击分数的跳火方式来引导点火。 还描述了与选择合适的操作射击分数有关的各种方法，模块，查找表和布置。
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公开(公告)号：US20190170074A1
公开(公告)日：2019-06-06
申请号：US16270349
申请日：2019-02-07
Applicant: Tula Technology Inc. , GM Global Technology Operations LLC
Inventor： Mark A. SHOST , Louis J. SERRANO , Steven E. CARLSON , Vijay SRINIVASAN , Eric J. DEFENDERFER , Nitish J. WAGH , Randall S. BEIKMANN , Jinbiao LI , Xin YUAN , Li-Chun CHIEN
Abstract: In one aspect, a skip fire engine controller is described. The skip fire engine controller includes a skip fire module arranged to determine an operational firing fraction and associated cylinder load for delivering a desired engine output. The skip fire engine controller also includes a firing controller arranged to direct firings in a skip fire manner that delivers the selected operational firing fraction. Various methods, modules, lookup tables and arrangements related to the selection of a suitable operational firing fraction are also described.
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公开(公告)号：US20150367830A1
公开(公告)日：2015-12-24
申请号：US14743581
申请日：2015-06-18
Applicant: Tula Technology Inc.
Inventor： Ihab S. SOLIMAN , Mark A. SHOST
CPC classification number: B60W20/00 , B60W10/06 , F02D17/02 , F02D29/02 , F02D41/3058 , F02D2200/0406 , F02N11/04 , F02N11/0829 , F02N2011/0896 , F02N2200/022 , F02P5/1506 , Y02T10/46 , Y02T10/48 , Y10S903/905
Abstract: A variety of methods and arrangements for implementing a start/stop feature in a skip fire engine control system are described. In one aspect, the implementation of the start/stop feature involves automatically turning off an internal combustion engine under selected circumstances during a drive cycle. A determination is made that the engine should be restarted. During the engine startup period, the engine is operated in a skip fire manner such that a desired engine speed is reached.
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