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公开(公告)号：US08904787B2
公开(公告)日：2014-12-09
申请号：US13239137
申请日：2011-09-21
IPC分类号： F02D41/00 , F02D9/02 , F02M25/07 , F02B37/007 , F02B29/04
CPC分类号： F02D41/005 , F02B29/0406 , F02B37/007 , F02D9/02 , F02D41/0065 , F02D41/0077 , F02D2041/0017 , F02M26/05 , F02M26/06 , F02M26/08 , F02M26/24 , F02M26/28 , F02M26/38 , F02M26/42 , Y02T10/47
摘要： A method is provided for controlling EGR flow in turbocharged engine. The method comprises operating a low-pressure exhaust gas recirculation (LP-EGR) system at a fixed EGR percentage rate of fresh airflow from mid-load down to a minimum engine load, even as load changes. In this way, errors in the delivered LP-EGR rate during transient conditions may be alleviated by providing a fixed EGR percentage of fresh airflow at all engine loads within a fixed mode range.
摘要翻译： 提供了一种用于控制涡轮增压发动机中的EGR流量的方法。 该方法包括在负载变化的情况下以新的气流从中负载降低至最小发动机负荷的固定EGR率来操作低压排气再循环（LP-EGR）系统。 以这种方式，通过在固定模式范围内的所有发动机负载下提供新鲜气流的固定EGR百分比可以减轻瞬态条件下输送的LP-EGR率的误差。
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公开(公告)号：US20120023937A1
公开(公告)日：2012-02-02
申请号：US13239137
申请日：2011-09-21
IPC分类号： F02B33/44
CPC分类号： F02D41/005 , F02B29/0406 , F02B37/007 , F02D9/02 , F02D41/0065 , F02D41/0077 , F02D2041/0017 , F02M26/05 , F02M26/06 , F02M26/08 , F02M26/24 , F02M26/28 , F02M26/38 , F02M26/42 , Y02T10/47
摘要： A method is provided for controlling EGR flow in turbocharged engine. The method comprises operating a low-pressure exhaust gas recirculation (LP-EGR) system at a fixed EGR percentage rate of fresh airflow from mid-load down to a minimum engine load, even as load changes. In this way, errors in the delivered LP-EGR rate during transient conditions may be alleviated by providing a fixed EGR percentage of fresh airflow at all engine loads within a fixed mode range.
摘要翻译： 提供了一种用于控制涡轮增压发动机中的EGR流量的方法。 该方法包括在负载变化的情况下以新的气流从中负载降低至最小发动机负荷的固定EGR率来操作低压排气再循环（LP-EGR）系统。 以这种方式，通过在固定模式范围内的所有发动机负载下提供新鲜气流的固定EGR百分比可以减轻瞬态条件下输送的LP-EGR率的误差。
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公开(公告)号：US20130205774A1
公开(公告)日：2013-08-15
申请号：US13372335
申请日：2012-02-13
IPC分类号： F02B47/08
CPC分类号： F02M26/43 , F02B29/0406 , F02B47/08 , F02M25/06 , F02M26/08 , F02M26/24 , F02M26/28 , F02M26/47
摘要： Systems and methods for a twin turbocharged engine with a single exhaust gas recirculation (EGR) system are disclosed. In one example approach a system is provided comprising a first turbocharger in a first intake passage with a low-pressure EGR system fluidically coupling exhaust exiting the first turbocharger to intake air entering the first turbocharger, and a second turbocharger in a second intake passage without a low-pressure EGR system fluidically coupling exhaust exiting the second turbocharger to intake air entering the second turbocharger.
摘要翻译： 公开了具有单个排气再循环（EGR）系统的双涡轮增压发动机的系统和方法。 在一个示例性方法中，提供了一种系统，其包括在第一进气通道中的第一涡轮增压器，其中低压EGR系统将离开第一涡轮增压器的排气流体耦合到进入第一涡轮增压器的进气;以及第二进气通道中的第二涡轮增压器， 低压EGR系统将排出第二涡轮增压器的排气流体耦合到进入第二涡轮增压器的进气。
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公开(公告)号：US09587596B2
公开(公告)日：2017-03-07
申请号：US13372335
申请日：2012-02-13
CPC分类号： F02M26/43 , F02B29/0406 , F02B47/08 , F02M25/06 , F02M26/08 , F02M26/24 , F02M26/28 , F02M26/47
摘要： Systems and methods for a twin turbocharged engine with a single exhaust gas recirculation (EGR) system are disclosed. In one example approach a system is provided comprising a first turbocharger in a first intake passage with a low-pressure EGR system fluidically coupling exhaust exiting the first turbocharger to intake air entering the first turbocharger, and a second turbocharger in a second intake passage without a low-pressure EGR system fluidically coupling exhaust exiting the second turbocharger to intake air entering the second turbocharger.
摘要翻译： 公开了具有单个排气再循环（EGR）系统的双涡轮增压发动机的系统和方法。 在一个示例性方法中，提供了一种系统，其包括在第一进气通道中的第一涡轮增压器，其中低压EGR系统将离开第一涡轮增压器的排气流体耦合到进入第一涡轮增压器的进气;以及第二进气通道中的第二涡轮增压器， 低压EGR系统将排出第二涡轮增压器的排气流体耦合到进入第二涡轮增压器的进气。
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公开(公告)号：US08733320B2
公开(公告)日：2014-05-27
申请号：US13044373
申请日：2011-03-09
申请人： Gopichandra Surnilla , Michael Howard Shelby , Joseph Norman Ulrey , Daniel Joseph Styles , Christopher House , Brad Alan Boyer , James Hilditch
发明人： Gopichandra Surnilla , Michael Howard Shelby , Joseph Norman Ulrey , Daniel Joseph Styles , Christopher House , Brad Alan Boyer , James Hilditch
CPC分类号： F02B29/0406 , F01N3/2066 , F02B37/18 , F02M26/06 , F02M26/15 , F02M26/23 , Y02T10/144 , Y02T10/146 , Y02T10/24
摘要： A method for controlling combustion in a cylinder of a turbocharged engine in which intake air is reserved upstream of the cylinder. The method comprises decreasing an internal EGR rate in the cylinder during a tip-out condition if the temperature of the intake air is above a threshold, and increasing the internal EGR rate in the cylinder during a tip-out condition if the temperature of the intake air is below the threshold.
摘要翻译： 一种用于控制涡轮增压发动机的气缸中的燃烧的方法，其中进气在气缸的上游被保留。 该方法包括：如果进气的温度高于阈值，则在倾出状态期间降低气缸内的内部EGR率，并且如果进气温度在提升状态期间增加气缸内部的EGR率 空气低于门槛。
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公开(公告)号：US20110239997A1
公开(公告)日：2011-10-06
申请号：US13044373
申请日：2011-03-09
申请人： Gopichandra Surnilla , Michael Howard Shelby , Joseph Norman Ulrey , Daniel Joseph Styles , Christopher House , Brad Alan Boyer , James Hilditch
发明人： Gopichandra Surnilla , Michael Howard Shelby , Joseph Norman Ulrey , Daniel Joseph Styles , Christopher House , Brad Alan Boyer , James Hilditch
IPC分类号： F02B47/08
CPC分类号： F02B29/0406 , F01N3/2066 , F02B37/18 , F02M26/06 , F02M26/15 , F02M26/23 , Y02T10/144 , Y02T10/146 , Y02T10/24
摘要： A method for controlling combustion in a cylinder of a turbocharged engine in which intake air is reserved upstream of the cylinder. The method comprises decreasing an internal EGR rate in the cylinder during a tip-out condition if the temperature of the intake air is above a threshold, and increasing the internal EGR rate in the cylinder during a tip-out condition if the temperature of the intake air is below the threshold.
摘要翻译： 一种用于控制涡轮增压发动机的气缸中的燃烧的方法，其中进气在气缸的上游被保留。 该方法包括：如果进气的温度高于阈值，则在倾出状态期间降低气缸内的内部EGR率，并且如果进气温度在提升状态期间增加气缸内部的EGR率 空气低于门槛。
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公开(公告)号：US08726658B2
公开(公告)日：2014-05-20
申请号：US13188895
申请日：2011-07-22
CPC分类号： F02B37/12 , F02B29/0406 , F02B33/00 , F02B33/40 , F02B33/446 , F02B37/001 , F02B37/007 , F02B37/013 , F02B37/16 , F02B37/18 , F02M26/08 , F02M26/10 , F02M26/23 , F02M26/33 , F02M26/38 , Y02T10/121
摘要： Methods and systems are provided for an engine including a first turbocharger having a first compressor and a second turbocharger having a second compressor. An EGR differential between the first compressor and the second compressor may be increased under a condensation condition, and decreased under a surge condition. The EGR differential may also be decreased when a compressor outlet temperature exceeds an outlet temperature threshold.
摘要翻译： 为包括具有第一压缩机的第一涡轮增压器和具有第二压缩机的第二涡轮增压器的发动机提供方法和系统。 第一压缩机和第二压缩机之间的EGR差压可以在冷凝条件下增加，并且在浪涌条件下减小。 当压缩机出口温度超过出口温度阈值时，EGR差压也可能降低。
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公开(公告)号：US20110290223A1
公开(公告)日：2011-12-01
申请号：US13172593
申请日：2011-06-29
IPC分类号： F02M25/07
CPC分类号： F02D41/064 , F01P2037/02 , F01P2060/02 , F02D41/0055 , F02D41/0065 , F02D2200/021 , F02D2200/0802 , F02M26/05 , F02M26/06 , F02M26/24 , F02M26/28 , F02M26/33 , F02M26/38 , F02M26/47 , Y02T10/47
摘要： Various systems and method for heating an engine in a vehicle during a cold start are described. In one example, thermal efficiency of the engine is improved by heating engine coolant via a high-pressure exhaust gas recirculation (HP-EGR) system. For example, after light-off of an exhaust catalyst, exhaust gas is routed through the HP-EGR system which includes a HP-EGR cooler. Heat from the exhaust gas is then used to warm the engine coolant via the HP-EGR cooler.
摘要翻译： 描述了在冷启动期间用于加热车辆中的发动机的各种系统和方法。 在一个示例中，通过经由高压排气再循环（HP-EGR）系统加热发动机冷却剂来提高发动机的热效率。 例如，在关闭排气催化剂之后，排气通过包括HP-EGR冷却器的HP-EGR系统。 然后使用来自废气的热量经由HP-EGR冷却器来加热发动机冷却剂。
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9.发明申请SYSTEM AND METHOD FOR IMPROVING EXHAUST GAS RECIRCULATION FOR A TURBOCHARGED ENGINE 有权用于改善涡轮发动机排气回收的系统和方法公开(公告)号：US20110247597A1
公开(公告)日：2011-10-13
申请号：US13165395
申请日：2011-06-21
CPC分类号： F02D41/0007 , F02B37/00 , F02D37/00 , F02D41/0065 , F02M26/05 , F02M26/07 , F02M26/23 , F02M26/35 , F02M26/47 , F02M26/48 , F02M26/71 , Y02T10/144 , Y02T10/47
摘要： A system and method for delivering EGR to an internal combustion engine is presented. The system can reduce system cost and lower system complexity.
摘要翻译： 提出了一种用于将EGR输送到内燃机的系统和方法。 该系统可以降低系统成本，降低系统复杂度。
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公开(公告)号：US08020538B2
公开(公告)日：2011-09-20
申请号：US12790569
申请日：2010-05-28
CPC分类号： F02D41/064 , F01P2037/02 , F01P2060/02 , F02D41/0055 , F02D41/0065 , F02D2200/021 , F02D2200/0802 , F02M26/05 , F02M26/06 , F02M26/24 , F02M26/28 , F02M26/33 , F02M26/38 , F02M26/47 , Y02T10/47
摘要： Various systems and method for heating an engine in a vehicle during a cold start are described. In one example, thermal efficiency of the engine is improved by heating engine coolant via a high-pressure exhaust gas recirculation (HP-EGR) system. For example, after light-off of an exhaust catalyst, exhaust gas is routed through the HP-EGR system which includes a HP-EGR cooler. Heat from the exhaust gas is then used to warm the engine coolant via the HP-EGR cooler. One or more engine operating parameters are adjusted in response to the HP-EGR entering the engine during the cold start in order to maintain combustion stability.
摘要翻译： 描述了在冷启动期间用于加热车辆中的发动机的各种系统和方法。 在一个示例中，通过经由高压排气再循环（HP-EGR）系统加热发动机冷却剂来提高发动机的热效率。 例如，在关闭排气催化剂之后，排气通过包括HP-EGR冷却器的HP-EGR系统。 然后使用来自废气的热量经由HP-EGR冷却器来加热发动机冷却剂。 响应于在冷起动期间进入发动机的HP-EGR来调节一个或多个发动机操作参数，以保持燃烧稳定性。
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