公开(公告)号：US20190263382A1

公开(公告)日：2019-08-29

申请号：US16283404

申请日：2019-02-22

Applicant: Tula Technology, Inc.

Inventor： John W. PARSELS ,  Matthew A. YOUNKINS

IPC: B60W20/15 ,  F16H7/08 ,  B60W10/06 ,  B60W10/08 ,  B60W20/40 ,  B60W30/20 ,  B60K6/26 ,  B60K6/48

Abstract: A variety of methods and arrangements for mitigating powertrain and accessory torsional oscillation through electric motor/generator control are described. In one aspect, working chamber air charge and crank position are determined prior to starting an engine. During the engine startup period, an electric motor/generator supplies a smoothing torque to at least partially cancel engine torque variations.

公开(公告)号：US20190003442A1

公开(公告)日：2019-01-03

申请号：US16021532

申请日：2018-06-28

Applicant: Tula Technology, Inc.

Inventor： Elliot A. ORTIZ-SOTO ,  Matthew A. YOUNKINS

IPC: F02P5/04 ,  F02P5/15 ,  F02D41/00 ,  F02D13/02 ,  F02D41/26

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.

公开(公告)号：US20180320614A1

公开(公告)日：2018-11-08

申请号：US16035614

申请日：2018-07-14

Applicant: Tula Technology, Inc.

Inventor： Matthew A. YOUNKINS ,  Louis J. SERRANO

IPC: F02D41/00 ,  F02D13/02 ,  F02D41/04 ,  F02D13/06 ,  F02D11/02 ,  F02P5/15 ,  F02D41/26 ,  F01L1/047 ,  F02P5/145 ,  F02D41/12 ,  F02D41/10 ,  F02D17/02

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 various aspects, internal combustion engines, engine controllers and methods of controlling engines are described. The engine includes a camshaft and a two cylinder sets. Cylinders in the first are deactivatable and cylinders in the second set may be fired at high or low output levels. The air charge for each fired working cycle is set based on whether a high or low torque output is selected. In some implementations, the camshaft is axially shiftable between first and second positions. First cam lobes are configured to cause their associated cylinders to intake a large air charge during intake strokes that occur when the camshaft is in the first position. Second cam lobes for cylinders in the second set cause their associated cylinders to intake a smaller air charge when the camshaft is in the second position. Second cam lobes for cylinders in the first set deactivate their associated cylinders.

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.

公开(公告)号：US20180046184A1

公开(公告)日：2018-02-15

申请号：US15672132

申请日：2017-08-08

Applicant: Tula Technology, Inc.

Inventor： Ram SUBRAMANIAN ,  Louis J. SERRANO ,  Matthew A. YOUNKINS

IPC: G05D1/00 ,  F02D41/14 ,  F02D41/00 ,  F02D17/02 ,  F02P5/15

CPC classification number: G05D1/0061 ,  B60W30/1882 ,  F02D11/105 ,  F02D17/02 ,  F02D29/02 ,  F02D41/0087 ,  F02D41/1402 ,  F02D2200/501 ,  F02D2250/18 ,  F02P5/1512

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.

公开(公告)号：US20170218867A1

公开(公告)日：2017-08-03

申请号：US15485000

申请日：2017-04-11

Applicant: Tula Technology, Inc.

Inventor： Matthew A. YOUNKINS ,  Louis J. SERRANO

IPC: F02D41/00 ,  F02D13/02 ,  F02P5/15 ,  F02D17/02 ,  F02D11/02 ,  F02D41/26 ,  F01L1/047 ,  F02D13/06

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.

公开(公告)号：US20170130630A1

公开(公告)日：2017-05-11

申请号：US15347562

申请日：2016-11-09

Applicant: Tula Technology, Inc.

Inventor： Matthew A. YOUNKINS ,  Shikui Kevin CHEN ,  Mark A. WILCUTTS

IPC: F01N3/20

CPC classification number: F01N3/2033 ,  F01N3/021 ,  F01N3/0814 ,  F01N3/2066 ,  F01N11/005 ,  F01N13/009 ,  F01N2430/08 ,  F01N2900/08 ,  F01N2900/1404 ,  F01N2900/1602 ,  F02D41/0087 ,  F02D41/401 ,  F02D2041/0012 ,  F02D2200/0802 ,  F02D2200/0804 ,  Y02T10/24 ,  Y02T10/44 ,  Y02T10/47

Abstract: A variety of methods and arrangements for controlling the exhaust gas temperature of a lean burn, skip fire controlled internal combustion engine are described. In one aspect, an engine controller includes an aftertreatment system monitor and a firing timing determination unit. The aftertreatment monitor obtains data relating to a temperature of one or more aftertreatment elements, such as a catalytic converter. Based at least partly on this data, the firing timing determination unit generates a firing sequence for operating the engine in a skip fire manner such that the temperature of the aftertreatment element is controlled within its effective operating range.

公开(公告)号：US20160281618A1

公开(公告)日：2016-09-29

申请号：US15180332

申请日：2016-06-13

Applicant: Tula Technology, Inc.

Inventor： Matthew A. YOUNKINS ,  Louis J. SERRANO

IPC: F02D41/00 ,  F02D41/10 ,  F02D13/02 ,  F02P5/145 ,  F02D13/06

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定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。

公开(公告)号：US20140278007A1

公开(公告)日：2014-09-18

申请号：US13843567

申请日：2013-03-15

Applicant: TULA TECHNOLOGY, INC.

Inventor： Mark A. WILCUTTS ,  Xin YUAN ,  Joshua P. SWITKES ,  Li-Chun CHIEN ,  Steven E. CARLSON ,  Christopher W. CHANDLER ,  Christopher C. Hand ,  Matthew A. YOUNKINS

IPC: F02D41/00

CPC classification number: F02D41/0087 ,  F02D41/3058 ,  F02D2200/0614

Abstract: Various methods and arrangements for determining a combustion control parameter for a working chamber in an engine are described. In one aspect, an engine controller includes a firing counter that stores a firing history for the working chamber. A combustion control module is used to determine a combustion control parameter, which is used to help manage combustion in the working chamber. The combustion control parameter is determined based at least in part on the firing history.

Abstract translation: 描述了用于确定发动机中的工作室的燃烧控制参数的各种方法和装置。 一方面，发动机控制器包括存储工作室的点火历史的点火计数器。 燃烧控制模块用于确定燃烧控制参数，其用于帮助管理工作室中的燃烧。 至少部分地基于击发历史来确定燃烧控制参数。

公开(公告)号：US20140277999A1

公开(公告)日：2014-09-18

申请号：US13842234

申请日：2013-03-15

Applicant: TULA TECHNOLOGY, INC.

Inventor： Joshua P. SWITKES ,  Xin YUAN ,  Matthew A. YOUNKINS

IPC: F02D13/02

CPC classification number: F02D13/0219 ,  F01L1/344 ,  F01L1/34409 ,  F01L2013/001 ,  F01L2800/00 ,  F01L2800/15 ,  F01L2820/01 ,  F02D13/06 ,  F02D41/0087 ,  F02D2041/001 ,  F02D2041/0012 ,  Y02T10/18

Abstract: Arrangements for stabilizing valve timing adjustment mechanisms such as cam phasers during operation of an engine are described. The described approaches are particularly well suited for use during skip fire control, although they may be used advantageously in other applications as well. In general, the phase of an adjustable phase camshaft is controlled relative to a crankshaft of an engine. In one aspect, at least one of (i) firing events in a skip fire firing sequence, and (ii) dynamically determined valve actuation events are used in the control of the camshaft phase during operation of the engine. In some embodiments, hydraulic pressure within a cam phaser is varied in a manner that maintains the phase of the camshaft substantially more stable through transitory variations in torque applied to the camshaft by the actuation of the valves than would occur without the variations in hydraulic pressure.

Abstract translation: 描述了在发动机运行期间稳定气门正时调节机构（例如凸轮相位器）的布置。 所描述的方法特别适用于跳过火控制期间的使用，尽管它们也可有利地用于其它应用中。 通常，相对于发动机的曲轴控制可调节相位凸轮轴的相位。 在一个方面中，在发动机运转期间，在（i）点火点火顺序中的点火事件和（ii）动态确定的气门致动事件中的至少一个被用于控制凸轮轴相位。 在一些实施例中，凸轮相位器内的液压变化的方式是通过阀的致动而不会在没有液压变化的情况下施加到凸轮轴上的扭矩的瞬时变化来保持凸轮轴的相位的稳定。