公开(公告)号：US20190145859A1

公开(公告)日：2019-05-16

申请号：US16180703

申请日：2018-11-05

Applicant: Tula Technology, Inc.

Inventor： Shikui Kevin CHEN ,  Aditya MANDAL ,  Li-Chun CHIEN ,  Elliot ORTIZ-SOTO

IPC: G01M15/11 ,  G06N3/08 ,  G06N20/00 ,  G06N5/04 ,  F02D35/02

Abstract: Using machine learning for misfire detection in a Dynamic firing level modulation controlled internal combustion engine is described. A neural network is used to calculate expected crank acceleration from various inputs, including the dynamically defined cylinder skip fire sequence. The output of the neural network is then compared to a signal indicative of the measured crank acceleration. Based the comparison, a prediction is made if a misfire has occurred or not. In alternative embodiment, the neural network is expanded to include the measured crank acceleration as an additional input. With the latter embodiment, the neural network is arranged to directly predict misfire events.

公开(公告)号：US20160377007A9

公开(公告)日：2016-12-29

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 ,  Adya S. Tripathi

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击发历史的发射计数器。 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：US20160363062A9

公开(公告)日：2016-12-15

申请号：US13963686

申请日：2013-08-09

Applicant: Tula Technology, Inc.

Inventor： Mohammad R. PIRJABERI ,  Steven E. CARLSON ,  Louis J. SERRANO ,  Xin YUAN ,  Li-Chun CHIEN ,  Adya S. TRIPATHI

IPC: F02D41/00

CPC classification number: F02D41/00 ,  F02D11/105 ,  F02D17/02 ,  F02D41/0087 ,  F02D41/0225 ,  F02D41/2422 ,  F02D2250/18

Abstract: The described embodiments relate generally to skip fire control of internal combustion engines and particularly to mechanisms for determining a desired operational firing fraction. In some embodiments, a firing fraction determining unit is arranged to determine a firing fraction suitable for delivering a requested engine output. The firing fraction determining unit may utilize data structures such as lookup tables in the determination of the desired firing fraction. In one aspect the desired engine output and one or more operational power train parameters such as current engine speed, are used as indices to a lookup table used to select a desired firing fraction. In other embodiments, additional indices to the data structure may include any one of: transmission gear; manifold absolute pressure (MAP); manifold air temperature; a parameter indicative of mass air charge (MAC); cam position; cylinder torque output; maximum permissible manifold pressure; vehicle speed; and barometric pressure.

Abstract translation: 所描述的实施例总体上涉及跳过内燃机的火灾控制，特别涉及用于确定期望的操作燃烧部分的机构。 在一些实施例中，排放分数确定单元布置成确定适于递送所要求的发动机输出的点火分数。 射击分数确定单元可以在确定期望的击发分数时利用诸如查找表的数据结构。 在一个方面，将期望的发动机输出和一个或多个操作动力系参数（例如当前发动机转速）用作用于选择期望的发动部分的查找表的索引。 在其他实施例中，数据结构的附加索引可以包括以下任何一个：传动齿轮; 歧管绝对压力（MAP）; 歧管空气温度; 指示质量空气充注（MAC）的参数; 凸轮位置 气缸扭矩输出; 最大允许歧管压力; 车速; 和大气压力。

公开(公告)号：US20140041625A1

公开(公告)日：2014-02-13

申请号：US13963686

申请日：2013-08-09

Applicant: Tula Technology, Inc.

Inventor： Mohammad R. PIRJABERI ,  Steven E. CARLSON ,  Louis J. SERRANO ,  Xin YUAN ,  Li-Chun CHIEN

IPC: F02D41/00

CPC classification number: F02D41/00 ,  F02D11/105 ,  F02D17/02 ,  F02D41/0087 ,  F02D41/0225 ,  F02D41/2422 ,  F02D2250/18

Abstract: The described embodiments relate generally to skip fire control of internal combustion engines and particularly to mechanisms for determining a desired operational firing fraction. In some embodiments, a firing fraction determining unit is arranged to determine a firing fraction suitable for delivering a requested engine output. The firing fraction determining unit may utilize data structures such as lookup tables in the determination of the desired firing fraction. In one aspect the desired engine output and one or more operational power train parameters such as current engine speed, are used as indices to a lookup table used to select a desired firing fraction. In other embodiments, additional indices to the data structure may include any one of: transmission gear; manifold absolute pressure (MAP); manifold air temperature; a parameter indicative of mass air charge (MAC); cam position; cylinder torque output; maximum permissible manifold pressure; vehicle speed; and barometric pressure.

Abstract translation: 所描述的实施例总体上涉及跳过内燃机的火灾控制，特别涉及用于确定期望的操作燃烧部分的机构。 在一些实施例中，排放分数确定单元布置成确定适于递送所要求的发动机输出的点火分数。 射击分数确定单元可以在确定期望的击发分数时利用诸如查找表的数据结构。 在一个方面，将期望的发动机输出和一个或多个操作动力系参数（例如当前发动机转速）用作用于选择期望的发动部分的查找表的索引。 在其他实施例中，数据结构的附加索引可以包括以下任何一个：传动齿轮; 歧管绝对压力（MAP）; 歧管空气温度; 指示质量空气充注（MAC）的参数; 凸轮位置 气缸扭矩输出; 最大允许歧管压力; 车速; 和大气压力。