公开(公告)号：US20160326969A1

公开(公告)日：2016-11-10

申请号：US14704747

申请日：2015-05-05

Applicant: Tula Technology Inc.

Inventor： Louis J. SERRANO ,  Mohammad R. PIRJABERI ,  Charles H. LOUCKS

IPC: F02D17/02 ,  G01M15/04 ,  F02D41/18

CPC classification number: F02D17/02 ,  F02D41/0087 ,  F02D41/0097 ,  F02D41/18 ,  F02D2041/0012 ,  F02D2041/1422 ,  F02D2041/1432 ,  F02D2041/286

Abstract: A variety of methods, devices and filters are described that are suitable for averaging measured power train operating parameters over a period that varies as a function of an engine cylinder firing characteristic such as a current operational firing fraction or firing sequence. The averaged measured operating parameter may be used in a variety of different engine control related functions, calculations and/or operations. The described techniques and devices are particularly well suited for use during skip fire operation of an engine.

Abstract translation: 描述了各种各样的方法，装置和过滤器，其适用于在作为发动机气缸点火特性（例如当前的操作点火分数或点火顺序）的函数变化的周期内平均测量的动力系运行参数。 平均测量的操作参数可用于各种不同的发动机控制相关功能，计算和/或操作。 所描述的技术和装置特别适用于在发动机的跳火操作期间使用。

公开(公告)号：US20140261317A1

公开(公告)日：2014-09-18

申请号：US14207109

申请日：2014-03-12

Applicant: Tula Technology Inc.

Inventor： Charles H. LOUCKS ,  Joel D. VAN ESS ,  Siamak HASHEMI ,  Louis J. SERRANO ,  Mohammad R. PIRJABERI ,  Shikui Kevin CHEN ,  Matthew A. YOUNKINS ,  Mark A. SHOST ,  Mark A. WILCUTTS

IPC: F02D35/02

CPC classification number: F02D41/0087 ,  F02D19/0623 ,  F02D41/22 ,  F02D41/3058 ,  F02D2200/025 ,  F02D2200/1004 ,  F02D2200/101 ,  F02D2200/1012 ,  F02D2200/1015 ,  F02D2250/14 ,  G01M15/11

Abstract: A variety of methods and arrangements for detecting misfire in a skip fire engine control system are described. In one aspect, a window is assigned to a target firing opportunity for a target working chamber. A change in an engine parameter is measured during the window. A determination is made as to whether a firing opportunity before the target firing opportunity is a skip or a fire and/or whether a firing opportunity after the target firing opportunity is a skip or a fire. Based at least in part on this skip/fire determination, a determination is made as to whether the target working chamber has misfired. In various embodiments, if the target working chamber is identified as persistently misfiring, the firing sequence is modified so that the target working chamber is deactivated and excluded from the firing sequence. In still other embodiments, a torque model is used to detect engine-related problems.

Abstract translation: 描述了用于检测跳火消防车控制系统中的失火的各种方法和装置。 在一个方面，将窗口分配给目标工作室的目标发射机会。 在窗口期间测量发动机参数的变化。 确定目标射击机会之前的射击机会是否是跳跃或火灾，和/或目标射击机会之后的射击机会是否是跳跃或火灾。 至少部分地基于该跳过/确定，确定目标工作室是否失火。 在各种实施例中，如果目标工作室被识别为持续地失火，则对燃烧序列进行修改，使得目标工作室被停用并从烧制序列中排除。 在其他实施例中，使用扭矩模型来检测发动机相关问题。