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Patent Agency Ranking
公开(公告)号：US20180156692A1
公开(公告)日：2018-06-07
申请号：US15872675
申请日：2018-01-16
Applicant: Tula Technology, Inc.
Inventor： Shikui Kevin CHEN , Allan J. KOTWICKI , Joel D. VAN ESS , Robert S. BAILEY , Mohammad R. PIRJABERI
CPC classification number: G01M15/05 , F02M35/1038 , G01M15/09
Abstract: A variety of methods, diagnostic modules and other arrangements for detecting air induction faults during operation of an internal combustion engine are described. In some embodiments, the intake manifold pressure is monitored with the intake pressure being read for each induction opportunity. Induction faults may be detected based at least in part on a comparison of the manifold pressure readings for sequential induction opportunities. In some embodiments, an induction fault is identified when the difference between the manifold pressure associated with an induction opportunity and the immediately preceding induction opportunity exceeds an induction fault threshold.
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公开(公告)号：US20170299466A1
公开(公告)日：2017-10-19
申请号：US15641097
申请日：2017-07-03
Applicant: Tula Technology, Inc.
Inventor： Shikui Kevin CHEN , Allan J. KOTWICKI , Joel D. VAN ESS , Robert S. BAILEY , Mohammad R. PIRJABERI
CPC classification number: G01M15/05 , F02M35/1038 , G01M15/09
Abstract: A variety of methods and arrangements for detecting failure of the commanded air induction in an internal combustion engine are described. In some embodiments, the intake manifold pressure is monitored. An air induction event generates a fluctuation in the intake manifold pressure, which is recorded. The signal is processed through a diagnostic filter to help determine whether the actual induction matched the commanded induction. In other embodiments, measured crankshaft acceleration is compared with estimated crankshaft acceleration. If the two quantities differ by a threshold amount an induction fault is detected. The two detection methods may also be combined. The describe approaches are particularly well suited for use in engines operating in a skip fire mode with cylinder deactivation and/or a dynamic firing level modulation mode.
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公开(公告)号：US20160116371A1
公开(公告)日：2016-04-28
申请号：US14919385
申请日：2015-10-21
Applicant: Tula Technology Inc.
Inventor： Shikui Kevin CHEN , Allan J. KOTWICKI , Joel D. VAN ESS , Robert S. BAILEY , Mohammad R. PIRJABERI
CPC classification number: G01M15/05 , F02M35/1038 , G01M15/09
Abstract: A variety of methods and arrangements for detecting failure of the commanded air induction in an internal combustion engine are described. In some embodiments, the intake manifold pressure is monitored. An air induction event generates a fluctuation in the intake manifold pressure, which is recorded. The signal is processed through a diagnostic filter to help determine whether the actual induction matched the commanded induction. In other embodiments, measured crankshaft acceleration is compared with estimated crankshaft acceleration. If the two quantities differ by a threshold amount an induction fault is detected. The two detection methods may also be combined. The describe approaches are particularly well suited for use in engines operating in a skip fire mode with cylinder deactivation and/or a dynamic firing level modulation mode.
Abstract translation: 描述了用于检测内燃机中指令的空气感应故障的各种方法和装置。 在一些实施例中，监测进气歧管压力。 空气感应事件产生记录的进气歧管压力的波动。 信号通过诊断滤波器进行处理，以帮助确定实际感应是否与命令感应相匹配。 在其他实施例中，将测量的曲轴加速度与估计的曲轴加速度进行比较。 如果两个量值相差阈值，则检测到感应故障。 两种检测方法也可以组合。 所描述的方法特别适合于在具有气缸停用和/或动态点火级调制模式的跳火模式下运行的发动机中使用。
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公开(公告)号：US20180328292A1
公开(公告)日：2018-11-15
申请号：US16035273
申请日：2018-07-13
Applicant: Tula Technology, Inc.
Inventor： Vijay SRINIVASAN , Louis J. SERRANO , Siamak HASHEMI , Robert S. BAILEY , Geoffrey ROUTLEDGE
CPC classification number: F02D17/02 , F02D41/0087 , F02D41/021 , F02D41/0225 , F02D41/047 , F02D41/1406 , F02D41/2422 , F02D2200/021 , F02D2200/025 , F02D2200/101 , F02D2200/501 , F02D2200/702 , F02D2250/18 , F02P5/1512 , F02P9/002
Abstract: A system and method for dynamically varying an amount slippage of a Torque Converter Clutch (TCC) provided between an engine and a transmission of a vehicle in response to non-powertrain factors. By varying a slippage output signal, the amount of TCC slippage between the engine and the transmission can be adjusted. Small amounts of slippage, relative to large amounts of slippage, provide (a) improved vehicle fuel economy, but (b) induce more powertrain noise and vibration in the vehicle cabin. By dynamically adjusting the slippage, a tradeoff between improved fuel economy vs. a satisfying driver experience can be realized.
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5.发明申请METHOD AND APPARATUS FOR DETERMINING OPTIMUM SKIP FIRE FIRING PROFILE WITH ROUGH ROADS AND ACOUSTIC SOURCES 审中-公开用于确定粗糙路径和声源的最佳跳跃火灾配置文件的方法和装置公开(公告)号：US20160252023A1
公开(公告)日：2016-09-01
申请号：US15148843
申请日：2016-05-06
Applicant: Tula Technology, Inc.
Inventor： Vijay SRINIVASAN , Louis J. SERRANO , Siamak HASHEMI , Robert S. BAILEY , Geoffrey ROUTLEDGE
CPC classification number: F02D17/02 , F02D41/0087 , F02D41/021 , F02D41/0225 , F02D41/1406 , F02D41/2422 , F02D2200/025 , F02D2200/101 , F02D2200/702
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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