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公开(公告)号：US20220228538A1
公开(公告)日：2022-07-21
申请号：US17714880
申请日：2022-04-06
发明人： Louis J. SERRANO , Xiaoping CAI , Shikui Kevin CHEN , Benjamin M. WOLK , Avra BRAHMA , Justin R. LEE
摘要： A system and method for transitioning a firing fraction of a variable displacement internal combustion engine when generating a desired torque output. During and following the transition to the second firing fraction, a combustion recipe is ascertained and used operating the cylinders of the variable displacement internal combustion engine to generate the desired torque output. The recipe is preferably optimized for the engine operating at the second firing fraction, at least relative to the previous charge of the previous combustion recipe used with the first firing fraction.
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公开(公告)号：US20220018296A1
公开(公告)日：2022-01-20
申请号：US17314309
申请日：2021-05-07
发明人： Shikui Kevin CHEN , Louis J. SERRANO , Vijay SRINIVASAN , Elliott A. ORTIZ-SOTO , Matthew A. YOUNKINS
摘要： A system and method for controlling an internal combustion engine involving (1) cylinder trapping strategies where one of several pneumatic spring types are dynamically selected for cylinders based at least partially on a predicted number of upcoming skips for each of the cylinders respectively and/or (2) staggering various valvetrain dependent operational engine strategies as operating conditions permit as the internal combustion engine warms up following a cold start.
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公开(公告)号：US20220372925A1
公开(公告)日：2022-11-24
申请号：US17883338
申请日：2022-08-08
摘要： A system and method of integrating an engine having dynamic skip fire control with an exhaust gas recirculation system in a turbocharged internal combustion engine is described. An engine control system determines an appropriate firing pattern based at least in part on a desired exhaust gas recirculation flow rate. Signals from sensors in the intake manifold and exhaust system may also be used as part of a feedback loop to determine a desired exhaust gas recirculation flow rate.
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公开(公告)号：US20210262896A1
公开(公告)日：2021-08-26
申请号：US17098694
申请日：2020-11-16
发明人： Shikui Kevin CHEN
摘要： A diagnostic system and method that (a) that uses models indicative of both successful firing and skips to determine if cylinders of a skip fire controlled internal combustion engine have successfully fired or successfully skipped and (b) uses filtered exhaust gas pressure readings for detecting faults associated with EGR systems and/or turbocharger systems.
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公开(公告)号：US20210180544A1
公开(公告)日：2021-06-17
申请号：US17110917
申请日：2020-12-03
摘要： A system and method of integrating an engine having dynamic skip fire control with an exhaust gas recirculation system in a turbocharged internal combustion engine is described. An engine control system determines an appropriate firing pattern based at least in part on a desired exhaust gas recirculation flow rate. Signals from sensors in the intake manifold and exhaust system may also be used as part of a feedback loop to determine a desired exhaust gas recirculation flow rate.
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公开(公告)号：US20220341819A1
公开(公告)日：2022-10-27
申请号：US17862143
申请日：2022-07-11
发明人： Shikui Kevin CHEN
摘要： A diagnostic system and method that (a) that uses models indicative of both successful firing and skips to determine if cylinders of a skip fire controlled internal combustion engine have successfully fired or successfully skipped and (b) uses filtered exhaust gas pressure readings for detecting faults associated with EGR systems and/or turbocharger systems.
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公开(公告)号：US20210404912A1
公开(公告)日：2021-12-30
申请号：US17469357
申请日：2021-09-08
发明人： Shikui Kevin CHEN
摘要： A diagnostic system and method that (a) that uses models indicative of both successful firing and skips to determine if cylinders of a skip fire controlled internal combustion engine have successfully fired or successfully skipped and (b) uses filtered exhaust gas pressure readings for detecting faults associated with EGR systems and/or turbocharger systems.
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8.发明公开公开(公告)号：US20230392561A1
公开(公告)日：2023-12-07
申请号：US17830925
申请日：2022-06-02
发明人： Louis J. SERRANO , Xin YUAN , Shikui Kevin CHEN , Xi LUO , Robert C. WANG , Xiaoping CAI , Vijay SRINIVASAN
CPC分类号： F02D41/0087 , F02D41/2403 , F02D41/0085 , F02D2200/1002 , F02D2200/50 , F02D2200/0802
摘要： A system and method for operating an ICE by (a) generating a running history of one or more-cylinder events per cylinder, and (b) using the running history to select a least-used non-rotating firing pattern, among a plurality of non-rotating firing patterns, provided for each firing fraction less than one (1). By making the least used selection based on the running history, unequal usage among cylinders of the ICE can be mitigated.
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9.发明申请公开(公告)号：US20230115272A1
公开(公告)日：2023-04-13
申请号：US17860838
申请日：2022-07-08
摘要： A classifier capable of predicting if cylinder valves of an engine commanded to activate or deactivate failed to activate or deactivate respectively. In various embodiments, the classifier can be binary or multi-class Logistic Regression, or a Multi-Layer Perceptron (MLP) classifier. The variable displacement engine can operate in cooperation with a variable displacement engine using cylinder deactivation (CDA) or skip fire, including dynamic skip fire and/or multi-level skip fire.
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10.发明申请公开(公告)号：US20150075458A1
公开(公告)日：2015-03-19
申请号：US14487563
申请日：2014-09-16
申请人： Tula Technology Inc.
CPC分类号： F02D17/02 , F02D13/06 , F02D41/0087 , F02D41/1498 , F02D41/22 , F02D2041/001 , Y02T10/18 , Y02T10/40
摘要： A variety of methods and devices for controlling the operation of the intake and exhaust valves in an internal combustion engine during skip fire operation are described. In various embodiments, an exhaust valve monitor or other suitable mechanism is used to detect exhaust valve actuation faults. When an exhaust valve actuation fault is detected for a particular cylinder, the corresponding intake valve is deactivated (or not activated) in circumstances when it would otherwise be activated in order to prevent the intake valve from opening into a cylinder that contains high pressure combustion gases. The described approach is particularly beneficial when skip fire operation is combined with cylinder deactivation so that air is not pumped through the cylinders during the skipped working cycles.
摘要翻译： 描述了用于在跳火操作期间控制内燃机中的进气门和排气门的操作的各种方法和装置。 在各种实施例中，使用排气门监视器或其他合适的机构来检测排气门致动故障。 当检测到特定气缸的排气门致动故障时，相应的进气门在其它情况下被停用（或未激活），以防止进气阀打开进入含有高压燃烧气体的气缸 。 所述方法在跳火操作与气缸停用组合时特别有利，使得在跳过的工作循环期间空气不被泵送通过气缸。
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