公开(公告)号：US20190063349A1

公开(公告)日：2019-02-28

申请号：US16011873

申请日：2018-06-19

申请人： Cummins Inc.

发明人： Anthony Kyle Perfetto ,  Samuel C. Geckler

IPC分类号： F02D41/00 ,  F02M26/43 ,  F02D21/08 ,  F02D41/38

CPC分类号： F02D41/0052 ,  F02D21/08 ,  F02D41/0072 ,  F02D41/008 ,  F02D41/0082 ,  F02D41/045 ,  F02D41/12 ,  F02D41/38 ,  F02D2041/0075 ,  F02D2041/389 ,  F02M26/43

摘要： Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one primary exhaust gas recirculation (EGR) cylinder and a plurality of non-primary EGR cylinders. The systems, apparatus and methods control the fueling to the at least one primary EGR cylinder in response to EGR fraction reduction conditions.

公开(公告)号：US20180245546A1

公开(公告)日：2018-08-30

申请号：US15903095

申请日：2018-02-23

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Hiroyuki HAGA

IPC分类号： F02M26/26 ,  F02D41/00 ,  F02D21/08 ,  F02M26/33 ,  F02M26/06 ,  F02M26/47 ,  F02D41/10

CPC分类号： F02M26/26 ,  F02B29/0418 ,  F02B29/0493 ,  F02D21/08 ,  F02D41/005 ,  F02D41/0072 ,  F02D41/10 ,  F02D43/00 ,  F02D2021/083 ,  F02D2041/0075 ,  F02D2200/0414 ,  F02D2200/0418 ,  F02M26/06 ,  F02M26/33 ,  F02M26/47 ,  F02P5/045 ,  F02P5/1516 ,  F02P5/1528

摘要： An internal combustion engine includes an intercooler configured to cool an intake gas compressed by a compressor, a cooler bypass passage configured to bypass the intercooler, and a cooler bypass valve configured to open and close the cooler bypass passage, and an exhaust gas recirculation gas is introduced into an upstream side of the intercooler. An electronic control unit is configured to open the cooler bypass valve during use of a high exhaust gas recirculation rate region, and to close the cooler bypass valve during use of a low exhaust gas recirculation rate region.

公开(公告)号：US09790877B2

公开(公告)日：2017-10-17

申请号：US14654938

申请日：2013-12-13

申请人： Doosan Infracore Co., Ltd.

发明人： Eui Joon Shim ,  Young Deok Han ,  Seung Hyup Shin

IPC分类号： F02D41/00 ,  F02D21/08 ,  F02M26/06 ,  F02D41/18

CPC分类号： F02D41/0072 ,  F02D21/08 ,  F02D41/0052 ,  F02D41/0057 ,  F02D41/0065 ,  F02D41/0077 ,  F02D41/18 ,  F02D2041/0017 ,  F02D2041/0075 ,  F02M26/06 ,  Y02T10/47

摘要： A method of controlling exhaust gas recirculation (EGR) for controlling recirculation of exhaust gas discharged from a combustion chamber of an engine includes: a data obtaining operation of obtaining data about an engine state and a gas supply state; a current EGR rate calculating operation of calculating a current EGR rate of supply gas based on the data; a demand EGR rate setting operation of setting a demand EGR rate matched with the data in a pre-made target EGR rate map; an error calculating operation of calculating a difference between the demand EGR rate and the current EGR rate; and a control operation of making the current EGR rate follow the demand EGR rate by changing a recirculation rate of the exhaust gas by adjusting an inhalation side pressure of the supply gas according to the difference.

公开(公告)号：US20170218864A1

公开(公告)日：2017-08-03

申请号：US15500543

申请日：2015-04-09

申请人： HONDA MOTOR CO., LTD.

发明人： Akihiro KATSUURA ,  Masaki UENO ,  Yosuke KOSAKA

IPC分类号： F02D41/00 ,  F02M26/47

CPC分类号： F02D41/0072 ,  F02D13/0265 ,  F02D35/026 ,  F02D41/0047 ,  F02D41/0062 ,  F02D2041/0075 ,  F02D2200/0402 ,  F02M26/45 ,  F02M26/46 ,  F02M26/47 ,  F02P5/152 ,  Y02T10/18

摘要： A control system and a control method for an internal combustion engine, which are capable of accurately calculating an in-cylinder gas amount and an EGR ratio by a relatively simple method even in a case where an in-cylinder gas temperature is changed by execution of internal EGR, and properly controlling the engine using the EGR ratio thus calculated. An in-cylinder gas amount Gact actually filled in the cylinder is calculated by correcting an ideal in-cylinder gas amount Gth, which is an amount of gases filled in a cylinder in an ideal state in which it is assumed that no exhaust gases of the engine are recirculated into the cylinder, using an ideal in-cylinder gas temperature Tcylth according to an in-cylinder gas temperature Tcyl, and an EGR ratio REGRT is calculated using the in-cylinder gas amount Gact and an intake air amount Gaircyl.

公开(公告)号：US20160076467A1

公开(公告)日：2016-03-17

申请号：US14851550

申请日：2015-09-11

申请人： MAN Truck & Bus AG

发明人： Franz Werner Prümm ,  Bruno Barciela ,  Joachim Weiß

IPC分类号： F02D41/00

CPC分类号： F02D41/0007 ,  F02D19/02 ,  F02D41/0027 ,  F02D41/0065 ,  F02D41/0072 ,  F02D41/1445 ,  F02D41/1446 ,  F02D2041/0067 ,  F02D2041/0075 ,  F02M26/05 ,  F02M26/47 ,  Y02T10/32 ,  Y02T10/47

摘要： A combustion engine, in particular a gas engine, for a vehicle, in particular for a commercial vehicle, has an intake duct through which a gas, in particular a fuel gas/air/exhaust gas mixture, can be fed to a combustion unit), in particular a cylinder-piston unit, of the combustion engine, and an exhaust gas recirculation system feeding in an exhaust gas from the combustion unit at an exhaust gas admission region to the gas fed to the combustion unit. At least one measuring device that determines the gas mass flow, in particular fuel gas/air/exhaust gas mass flow, and the gas temperature, in particular fuel gas/air/exhaust gas temperature, is arranged in the intake duct upstream of the combustion unit and downstream of the exhaust gas admission region. At least one temperature sensor is arranged both in the exhaust gas recirculation system and in the intake duct, in each case upstream of the exhaust gas admission region, in addition to the measuring device, in order to determine a recirculated exhaust gas mass flow and/or an air mass flow fed to the combustion unit.

摘要翻译： 用于车辆，特别是用于商业车辆的内燃机，特别是燃气发动机具有进气管道，气体，特别是燃料气体/空气/废气混合物可以通过该进气管道被供给到燃烧单元） ，特别是内燃机的气缸 - 活塞单元，以及排气再循环系统，其将来自燃烧单元的废气在排气入口区域供给到供给到燃烧单元的气体。 确定气体质量流量，特别是燃料气体/空气/废气质量流量以及气体温度，特别是燃料气体/空气/废气温度的至少一个测量装置布置在燃烧器上游的进气管道中 排气入口区域的单元和下游。 除了测量装置之外，至少一个温度传感器布置在排气再循环系统和进气管道中，在每种情况下都在废气进入区域的上游，以便确定再循环的废气质量流和/ 或馈送到燃烧单元的空气质量流。

公开(公告)号：US09133795B2

公开(公告)日：2015-09-15

申请号：US13730458

申请日：2012-12-28

申请人： Michael B. Riley ,  Gregory James Hampson

发明人： Michael B. Riley ,  Gregory James Hampson

IPC分类号： F02M25/07 ,  F02B41/08 ,  F02B47/08 ,  F01L1/344 ,  F02B37/00 ,  F02D13/02 ,  F02B29/04 ,  F02D41/00 ,  F01N13/10

CPC分类号： F02M25/077 ,  F01L1/344 ,  F01N13/107 ,  F02B29/0406 ,  F02B37/00 ,  F02B47/08 ,  F02D13/0219 ,  F02D13/0249 ,  F02D13/0257 ,  F02D41/0007 ,  F02D41/0047 ,  F02D41/0065 ,  F02D2041/001 ,  F02D2041/0075 ,  F02M26/05 ,  F02M26/44 ,  F02M26/71 ,  Y02T10/121 ,  Y02T10/144 ,  Y02T10/18

摘要： An engine system utilizing a split flow exhaust system for distributing different portions of exhaust gases to a turbocharger and to an EGR system and methods of controlling the flow of the exhaust gases are provided. The split flow exhaust system includes a high-pressure exhaust valve in fluid communication with a turbine of a turbocharger and a high-pressure exhaust manifold interposed therebetween. Also, a low-pressure exhaust valve is in fluid communication with an intake system and a low-pressure exhaust manifold is interposed therebetween. Initial exhaust gases expelled from the engine are delivered to the turbine while secondary exhaust gases expelled from the engine are delivered as EGR to the intake system. The flow to the turbine and the intake system is controlled using the high-pressure exhaust valves and low-pressure exhaust valves of the engine rather than an EGR valve.

摘要翻译： 提供了一种利用分流排气系统的发动机系统，用于将不同部分的废气分配到涡轮增压器和EGR系统以及控制废气流动的方法。 分流排气系统包括与涡轮增压器的涡轮流体连通的高压排气阀和插入其间的高压排气歧管。 此外，低压排气阀与进气系统流体连通，并且在其间插入低压排气歧管。 从发动机排出的初始废气被输送到涡轮机，而从发动机排出的二次废气作为EGR被输送到进气系统。 使用发动机的高压排气阀和低压排气阀而不是EGR阀来控制到涡轮机和进气系统的流量。

公开(公告)号：US20150240730A1

公开(公告)日：2015-08-27

申请号：US14192765

申请日：2014-02-27

申请人： Ford Global Technologies, LLC

发明人： Daniel Joseph Styles ,  Gopichandra Surnilla ,  James Alfred Hilditch

IPC分类号： F02D41/00

CPC分类号： F02D41/0007 ,  F02B29/0468 ,  F02D41/0025 ,  F02D41/144 ,  F02D2041/0075 ,  F02D2200/0418 ,  Y02T10/144 ,  Y02T10/146

摘要： Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, an amount of water accumulating in the CAC may be based on an output of an oxygen sensor positioned downstream of the CAC, ambient humidity, and EGR flow while EGR is flowing. Additionally, engine actuators may be adjusted to purge condensate from the CAC and/or reduce condensate formation based on the amount of water inside the CAC.

摘要翻译： 提供了用于估计增压空气冷却器（CAC）中的储水的方法和系统。 在一个实例中，积聚在CAC中的水量可以基于位于CAC下游的氧传感器的输出，环境湿度和EGR流量，同时EGR流动。 此外，可以调节发动机执行器以从CAC吹扫冷凝物和/或基于CAC内部的水量来减少冷凝物的形成。

公开(公告)号：US09086001B2

公开(公告)日：2015-07-21

申请号：US13479457

申请日：2012-05-24

申请人： Angel Fernando Porras ,  Douglas Raymond Martin

发明人： Angel Fernando Porras ,  Douglas Raymond Martin

IPC分类号： F01N3/00 ,  F01N3/02 ,  F01N3/10 ,  F01N3/20 ,  F01N5/02 ,  F01N9/00 ,  F02D41/14 ,  F02D41/18 ,  F02D41/22 ,  F02D41/00

CPC分类号： F01N5/02 ,  F01N9/00 ,  F01N2240/02 ,  F01N2410/03 ,  F01N2900/1404 ,  F01P2025/44 ,  F01P2025/52 ,  F02D41/1446 ,  F02D41/18 ,  F02D41/22 ,  F02D2041/0075 ,  Y02T10/16 ,  Y02T10/47

摘要： A method for controlling an engine having an exhaust gas heat exchanger includes measuring air mass flow, engine coolant temperature (ECT), exhaust gas temperature (EGT), heat exchanger coolant temperature (HECT), and engine speed; and operating a valve to selectively provide exhaust gas flow through the exhaust gas heat exchanger based on air mass flow, ECT, EGT, HECT, and engine speed. A vehicle has an engine and an exhaust heat recovery system with an exhaust gas heat exchanger and a valve configured to control exhaust gas flow. A controller for the vehicle is configured to (i) measure air mass flow, ECT, EGT, HECT, and engine speed, and (ii) operate the valve to selectively provide exhaust gas flow through the exhaust gas heat exchanger based on air mass flow, ECT, EGT, HECT, and engine speed.

摘要翻译： 用于控制具有排气热交换器的发动机的方法包括测量空气质量流量，发动机冷却剂温度（ECT），排气温度（EGT），热交换器冷却剂温度（HECT）和发动机转速; 并且操作阀以选择性地提供基于空气质量流量，ECT，EGT，HECT和发动机转速通过排气热交换器的废气流。 车辆具有发动机和排气热回收系统，其具有排气热交换器和构造成控制废气流的阀。 用于车辆的控制器被配置为（i）测量空气质量流量，ECT，EGT，HECT和发动机速度，以及（ii）操作阀以选择性地提供基于空气质量流量通过排气热交换器的废气流 ，ECT，EGT，HECT和发动机转速。

公开(公告)号：US20130118165A1

公开(公告)日：2013-05-16

申请号：US13735980

申请日：2013-01-07

申请人： Thomas G. Leone ,  Gopichandra Surnilla

发明人： Thomas G. Leone ,  Gopichandra Surnilla

IPC分类号： F02B47/02

CPC分类号： F02B47/02 ,  F02B47/08 ,  F02D35/027 ,  F02D41/0025 ,  F02D41/1498 ,  F02D2041/0075 ,  F02D2200/0612 ,  F02M25/0227 ,  F02M25/03 ,  F02P5/152 ,  F02P5/1527 ,  Y02T10/46

摘要： Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, are coordinated with the direct injection to reduce torque and EGR transients.

公开(公告)号：US20110184632A1

公开(公告)日：2011-07-28

申请号：US12693613

申请日：2010-01-26

申请人： Jun-Mo Kang ,  Ibrahim Haskara ,  Chen-Fang Chang ,  Yue-Yun Wang

发明人： Jun-Mo Kang ,  Ibrahim Haskara ,  Chen-Fang Chang ,  Yue-Yun Wang

IPC分类号： F02D41/00 ,  F02M25/07 ,  G01M15/00

CPC分类号： F02D41/0007 ,  F02D41/0047 ,  F02D41/1454 ,  F02D41/18 ,  F02D2041/0075 ,  F02D2041/141 ,  F02D2200/0402 ,  F02D2200/0406 ,  Y02T10/144

摘要： A method for estimating an oxygen concentration in an intake manifold of a diesel engine utilizing exhaust gas recirculation includes monitoring engine operation, monitoring an exhaust gas recirculation valve, and monitoring an exhaust air fuel ratio. When the engine operates in steady state with the exhaust gas recirculation valve in the closed position, a volumetric efficiency for the engine is updated. A partial pressure due to exhaust gas recirculation within the intake manifold based upon the updated volumetric efficiency is determined, and an estimated oxygen concentration within the intake manifold based upon the partial pressure due to exhaust gas recirculation within the intake manifold and the exhaust air fuel ratio is determined Operation of the engine is controlled based upon the estimated oxygen concentration within the intake manifold.

摘要翻译： 用于利用排气再循环来估计柴油发动机的进气歧管中的氧浓度的方法包括监测发动机运转，监测排气再循环阀以及监测排气空燃比。 当发动机在废气再循环阀处于关闭位置时处于稳定状态时，更新发动机的容积效率。 基于更新的容积效率确定由于进气歧管内的排气再循环引起的分压，并且基于由于进气歧管内的废气再循环引起的分压和排气空燃比，进气歧管内的估计氧浓度 基于进气歧管内的估计氧浓度来控制发动机的运转。