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公开(公告)号：US20190293011A1
公开(公告)日：2019-09-26
申请号：US15927467
申请日：2018-03-21
Applicant: GM Global Technology Operations LLC
Inventor： Jun-mo Kang , Gregory P. Matthews , Martino A. Casetti
Abstract: A method of operating a dedicated-EGR engine includes providing a rich air-fuel mixture to a dedicated cylinder; combusting the rich air-fuel mixture in the dedicated cylinder; modeling the combustion of the rich air-fuel mixture in the dedicated cylinder; estimating the composition of the combustion products in the dedicated cylinder based on interpolation of chemical reaction models of stoichiometric and rich combustion. The method further includes mixing the combustion products from the dedicated cylinder with air to produce an intake mixture; estimating a mass fraction of reformate and a mass fraction of burned gas in the intake mixture; providing the intake mixture to the intake ports of all of the cylinders of the dedicated-EGR engine; combusting an air-fuel mixture in a non-dedicated cylinder of the engine; and controlling an engine control parameter based on the estimated mass fractions of reformate and burned gas in the intake mixture.
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2.发明授权Air mass determination for cylinder activation and deactivation control systems 有权气缸激活和停用控制系统的空气质量确定公开(公告)号：US09249747B2
公开(公告)日：2016-02-02
申请号：US13798435
申请日：2013-03-13
Applicant: GM Global Technology Operations LLC
Inventor： Gregory P. Matthews
CPC classification number: F02D41/0087 , F02D37/02 , F02D41/0062 , F02D41/18 , F02D2041/0012 , F02D2041/1412 , F02D2200/0402 , F02D2250/18
Abstract: A system includes a cylinder event module that determines an air-per-cylinder value for a cylinder intake event or a cylinder non-intake event of a current cylinder based on a mass air flow signal and an engine speed signal. A status module generates a status signal indicating whether the current cylinder is activated. A deactivation module, based on the status signal, determines a current accumulated air mass in an intake manifold of an engine: for air received by the intake manifold since a last cylinder intake event of an activated cylinder and prior to one or more consecutive cylinder non-intake events of one or more deactivated cylinders; and based on a previous accumulated air mass in the intake manifold and the air-per-cylinder value. An activation module, based on the status signal, determines an air mass value for the current cylinder based on the air-per-cylinder value and the current accumulated air mass.
Abstract translation: 系统包括气缸事件模块，其基于质量空气流信号和发动机速度信号来确定气缸进气事件或当前气缸的气缸非进气事件的每气缸值。 状态模块产生一个状态信号，指示当前气缸是否被激活。 基于状态信号的停用模块确定发动机的进气歧管中的当前累积气体质量：对于由进气歧管接收的空气，由于活塞气缸的最后一个气缸进气事件并且在一个或多个连续气缸非气缸 - 一个或多个停用的汽缸的事件; 并且基于进气歧管中的先前累积空气质量和每气缸数值。 基于状态信号的激活模块基于每气缸数值和当前积累的空气质量来确定当前气缸的空气质量值。
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3.发明授权Intake port pressure prediction for cylinder activation and deactivation control systems 有权气缸启动和停用控制系统的进气口压力预测公开(公告)号：US09222427B2
公开(公告)日：2015-12-29
申请号：US13798536
申请日：2013-03-13
Applicant: GM Global Technology Operations LLC
Inventor： Gregory P. Matthews , Zhiping Steven Liu
CPC classification number: F02D41/0087 , F02D13/0219 , F02D13/06 , F02D17/02 , F02D41/18 , F02D2041/001 , F02D2041/0012 , F02D2200/0402 , F02D2200/0404 , F02D2200/0408 , F02D2250/18 , Y02T10/18
Abstract: A system includes a parameter module that determines at least one of a position of a throttle and a load of an engine. A cylinder status module generates a status signal indicating an activation status of each cylinder of the engine. The cylinder status module determines whether one or more of the cylinders are activated. A first pressure prediction module, when all of the cylinders are activated, predicts first intake port pressures for the cylinders of the engine according to a first model and based on the at least one of the position of the throttle and the engine load. A second pressure prediction module, when one or more of the cylinders is deactivated, predicts second intake port pressures for the deactivated cylinders according to a second model and based on the status signal and the at least one of the position of the throttle and the engine load.
Abstract translation: 系统包括确定节流阀的位置和发动机负载中的至少一个的参数模块。 气缸状态模块产生指示发动机的每个气缸的启动状态的状态信号。 气缸状态模块确定一个或多个气缸是否被激活。 第一压力预测模块，当所有气缸都被启动时，根据第一模型和基于节流阀的位置和发动机负载中的至少一个来预测发动机气缸的第一进气口压力。 第二压力预测模块，当一个或多个气缸停用时，根据第二模型预测停用气缸的第二进气口压力，并且基于状态信号和节流阀和发动机的位置中的至少一个 加载。
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公开(公告)号：US10934960B2
公开(公告)日：2021-03-02
申请号：US16179030
申请日：2018-11-02
Applicant: GM Global Technology Operations LLC
Inventor： Zhijian J. Wu , Zhiping S. Liu , Ping Ge , Martino A. Casetti , Gregory P. Matthews
Abstract: A method and system for estimating air mass per cylinder of an internal combustion engine is provided. An output signal from a MAF sensor is digitally processed to provide an estimate air mass per cylinder (APC). The system includes the MAF sensor; a data acquisition unit configured to receive an output signal from the MAF sensor and produce a sampled signal having a sampling rate greater than one sample per firing event; a multiple band pass (MBP) filter configured to remove signal components caused by airflow pulsations and oscillations through the MAF sensor; an envelope detector configured to detect the lower and upper envelopes of the MBP filtered signal; a MAF estimator configured to estimate a mass airflow based on the detected lower and upper envelopes; a signal decimator; a low pass filter; and a APC converter to converted the low pass filtered signal into an estimated APC.
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公开(公告)号：US10337441B2
公开(公告)日：2019-07-02
申请号：US14734619
申请日：2015-06-09
Applicant: GM Global Technology Operations LLC
Inventor： Gregory P. Matthews
Abstract: An engine control system of a vehicle includes a cylinder control module a first air per cylinder (APC) module, an adjustment module, and a fuel control module. The cylinder control module determines a target fraction of activated cylinders of an engine. The first APC module determines a first APC value based on an intake manifold pressure and an air temperature. The adjustment module determines an APC adjustment value based on the target fraction of activated cylinders. The first APC module also determines a second APC value based on the first APC value and the APC adjustment value. The fuel control module controls fuel injection based on the second APC value and a target air/fuel mixture.
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Patent Agency Ranking
公开(公告)号：US09534550B2
公开(公告)日：2017-01-03
申请号：US13798471
申请日：2013-03-13
Applicant: GM Global Technology Operations LLC
Inventor： Gregory P. Matthews , Zhiping Steven Liu , Daniel G. Brennan
CPC classification number: F02D41/0087 , F02D35/02 , F02D37/02 , F02D41/0007 , F02D41/18 , F02D2041/001 , F02D2041/0012 , F02D2041/1412 , F02D2200/0402 , F02D2200/1004 , F02D2250/18 , F02P5/045 , F02P5/1512 , Y02T10/144 , Y02T10/46
Abstract: A cylinder control system of a vehicle includes a cylinder control module and an air per cylinder (APC) prediction module. The cylinder control module determines a desired cylinder activation/deactivation sequence. The cylinder control module also activates and deactivates valves of cylinders of an engine based on the desired cylinder activation/deactivation sequence. The APC prediction module predicts an amount of air that will be trapped within a next activated cylinder in a firing order of the cylinders based on a cylinder activation/deactivation sequence of the last Q cylinders in the firing order. Q is an integer greater than one.
Abstract translation: 车辆的气缸控制系统包括气缸控制模块和每气缸空气（APC）预测模块。 气缸控制模块确定所需的气缸启动/停用顺序。 气缸控制模块还基于所需的气缸启动/停用顺序激活和停用发动机气缸的阀。 APC预测模块基于在点火顺序中的最后Q个气缸的气缸启动/停止顺序来预测将在气缸的点火顺序下被捕获在下一个激活的气缸内的空气量。 Q是大于1的整数。
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公开(公告)号：US10480435B2
公开(公告)日：2019-11-19
申请号：US15927467
申请日：2018-03-21
Applicant: GM Global Technology Operations LLC
Inventor： Jun-mo Kang , Gregory P. Matthews , Martino A. Casetti
Abstract: A method of operating a dedicated-EGR engine includes providing a rich air-fuel mixture to a dedicated cylinder; combusting the rich air-fuel mixture in the dedicated cylinder; modeling the combustion of the rich air-fuel mixture in the dedicated cylinder; estimating the composition of the combustion products in the dedicated cylinder based on interpolation of chemical reaction models of stoichiometric and rich combustion. The method further includes mixing the combustion products from the dedicated cylinder with air to produce an intake mixture; estimating a mass fraction of reformate and a mass fraction of burned gas in the intake mixture; providing the intake mixture to the intake ports of all of the cylinders of the dedicated-EGR engine; combusting an air-fuel mixture in a non-dedicated cylinder of the engine; and controlling an engine control parameter based on the estimated mass fractions of reformate and burned gas in the intake mixture.
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公开(公告)号：US20170016407A1
公开(公告)日：2017-01-19
申请号：US14797374
申请日：2015-07-13
Applicant: GM Global Technology Operations LLC
Inventor： Christopher E. WHITNEY , Layne K. Wiggins , Rafat F. Hattar , Gary Robert Cygan, JR. , Ning Jin , Gregory P. Matthews
CPC classification number: F02D35/024 , F02D37/02 , F02D41/182 , F02D41/3005 , F02D2200/0402 , F02D2200/0408 , F02D2200/0411
Abstract: An engine control system includes a prediction module that, during an exhaust stroke of a first cylinder of an engine, determines a predicted intake manifold pressure at an end of a next intake stroke of a second cylinder following the first cylinder in a firing order of the cylinders. An air per cylinder (APC) module determines a predicted mass of air that will be trapped within the second cylinder at the end of the next intake stroke of the second cylinder based on the predicted intake manifold pressure. A fueling module controls fueling of the second cylinder during the next intake stroke based on the predicted mass of air.
Abstract translation: 发动机控制系统包括预测模块，该预测模块在发动机的第一气缸的排气冲程期间确定在第一气缸之后的第二气缸的下一个进气冲程结束时的预测进气歧管压力， 气瓶。 基于预测的进气歧管压力，每缸（APC）模块的空气确定在第二气缸的下次进气冲程结束时将被捕获在第二气缸内的空气的预测质量。 燃料供给模块基于预测的空气质量来控制下一个进气冲程期间的第二气缸的燃料供给。
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9.发明授权System and method for predicting parameters associated with airflow through an engine 有权用于预测与通过发动机的气流相关的参数的系统和方法公开(公告)号：US09494092B2
公开(公告)日：2016-11-15
申请号：US14211389
申请日：2014-03-14
Applicant: GM Global Technology Operations LLC
Inventor： Zhiping Steven Liu , Gregory P. Matthews , Anthony B. Will
CPC classification number: F02D41/0002 , F02D41/0062 , F02D41/0087 , F02D41/18 , F02D2041/001 , F02D2041/0012 , F02D2041/0017 , F02D2200/0402 , F02D2200/0408 , F02D2250/14 , Y02T10/42 , Y02T10/47
Abstract: A system according to the principles of the present disclosure includes an engine air sensor, an engine air prediction module, and an engine actuator module. The engine air sensor measures an engine air parameter at a first rate. The engine air parameter includes at least one of a mass flow rate of air flowing into an intake manifold of an engine, a pressure within the intake manifold, and a mass of air within a cylinder of the engine. The engine air prediction module predicts the engine air parameter at a second rate that is greater than the first rate. The engine actuator module controls an actuator of the engine based on at least one of the measured engine air parameter and the predicted engine air parameter.
Abstract translation: 根据本公开的原理的系统包括发动机空气传感器，发动机空气预测模块和发动机致动器模块。 发动机空气传感器以第一速率测量发动机空气参数。 发动机空气参数包括流入发动机的进气歧管的空气的质量流量，进气歧管内的压力和发动机气缸内的空气质量中的至少一个。 发动机空气预测模块以大于第一速率的第二速率来预测发动机空气参数。 发动机执行器模块基于所测量的发动机空气参数和预测的发动机空气参数中的至少一个来控制发动机的致动器。
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10.发明申请SYSTEM AND METHOD FOR PREDICTING PARAMETERS ASSOCIATED WITH AIRFLOW THROUGH AN ENGINE 有权通过发动机预测与气流相关的参数的系统和方法公开(公告)号：US20150260112A1
公开(公告)日：2015-09-17
申请号：US14211389
申请日：2014-03-14
Applicant: GM Global Technology Operations LLC
Inventor： ZHIPING STEVEN LIU , Gregory P. Matthews , Anthony B. Will
CPC classification number: F02D41/0002 , F02D41/0062 , F02D41/0087 , F02D41/18 , F02D2041/001 , F02D2041/0012 , F02D2041/0017 , F02D2200/0402 , F02D2200/0408 , F02D2250/14 , Y02T10/42 , Y02T10/47
Abstract: A system according to the principles of the present disclosure includes an engine air sensor, an engine air prediction module, and an engine actuator module. The engine air sensor measures an engine air parameter at a first rate. The engine air parameter includes at least one of a mass flow rate of air flowing into an intake manifold of an engine, a pressure within the intake manifold, and a mass of air within a cylinder of the engine. The engine air prediction module predicts the engine air parameter at a second rate that is greater than the first rate. The engine actuator module controls an actuator of the engine based on at least one of the measured engine air parameter and the predicted engine air parameter.
Abstract translation: 根据本公开的原理的系统包括发动机空气传感器，发动机空气预测模块和发动机致动器模块。 发动机空气传感器以第一速率测量发动机空气参数。 发动机空气参数包括流入发动机的进气歧管的空气的质量流量，进气歧管内的压力和发动机气缸内的空气质量中的至少一个。 发动机空气预测模块以大于第一速率的第二速率来预测发动机空气参数。 发动机执行器模块基于所测量的发动机空气参数和预测的发动机空气参数中的至少一个来控制发动机的致动器。
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