公开(公告)号：US20180171890A1

公开(公告)日：2018-06-21

申请号：US15848408

申请日：2017-12-20

申请人： COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH

发明人： Wittison KAMEI

IPC分类号： F02D19/08 ,  F02D19/06 ,  F02D41/00 ,  F02B1/14

CPC分类号： F02D19/081 ,  F02B1/14 ,  F02D19/0649 ,  F02D19/0692 ,  F02D35/028 ,  F02D41/0002 ,  F02D41/0025 ,  F02D41/0055 ,  F02D41/3035 ,  F02D2041/0067 ,  F02D2200/0414 ,  F02M27/08 ,  F02M31/18 ,  F02M61/14 ,  Y02T10/128 ,  Y02T10/36 ,  Y02T10/42 ,  Y02T10/47

摘要： A dual fumigation homogeneous charge compression ignition (DF-HCCI) engine runs on low volatility internal combustion (IC) engine fuel such as diesel in combination with another IC engine fuel, both simultaneously fumigated in engine intake air stream. Both fumigated fuels mix with engine intake air and they are inducted together, at the same time, into engine combustion chamber where homogeneous charge compression ignition combustion takes place. Fumigation of two fuels, in which one fuel has low volatility, is done by a novel dual fuel fumigation system comprising of at least one ultrasonic atomizer. Combustion phasing control is done by varying proportions of fumigated fuels, EGR rate, and EGR temperature and additionally by controlling engine intake air temperature. Engine intake air is controlled to a desirable temperature by heat exchanger utilizing heat from engine and/or exhaust gas. A controller monitors inputs from relevant sensors and, based on these inputs, adjusts fumigation rates of fuels, EGR rates, EGR temperature and engine intake air temperature.

公开(公告)号：US20170204798A1

公开(公告)日：2017-07-20

申请号：US15478660

申请日：2017-04-04

申请人： YANMAR CO., LTD.

发明人： Atsuhito IWASE ,  Tomohiro OTANI ,  Yasuaki OKU ,  Yuki FUJIMOTO ,  Tomohiro FUKUDA

IPC分类号： F02D41/00

CPC分类号： F02D41/0077 ,  F02D41/005 ,  F02D41/0052 ,  F02D41/0065 ,  F02D41/0072 ,  F02D41/068 ,  F02D41/3005 ,  F02D41/345 ,  F02D41/401 ,  F02D2041/0067 ,  F02D2200/021 ,  F02D2200/0614 ,  F02D2200/0618 ,  F02D2200/101 ,  Y02T10/44 ,  Y02T10/47

摘要： The objective of the present invention is to provide an engine with improved startability and stable operation regardless of the driving environment and usage conditions. The engine is equipped with a control means, which calculates a standard injection timing on the basis of the target rotational frequency of the engine and a standard injection amount, that is, the amount of fuel injected, and which corrects the standard injection timing using at least one correction amount. A fuel injection control unit calculates a cooling water correction amount on the basis of the target rotational frequency of the engine, the standard injection amount, and the cooling water temperature, and when the cooling water temperature is less than a first prescribed temperature the control unit corrects the standard injection timing using only the cooling water correction amount.

公开(公告)号：US20170167416A1

公开(公告)日：2017-06-15

申请号：US15377327

申请日：2016-12-13

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Riccardo BARIA ,  Cosma NEGRO ,  Andres CESPEDES GARCIA ,  Davide DI NUNNO

IPC分类号： F02D41/00 ,  F01P7/16 ,  F02M26/04 ,  F02D21/08 ,  F02B37/12 ,  F02M26/01

CPC分类号： F02D41/0062 ,  F01P7/16 ,  F02B37/12 ,  F02B47/08 ,  F02D13/0261 ,  F02D21/08 ,  F02D41/0007 ,  F02D41/006 ,  F02D41/0065 ,  F02D41/06 ,  F02D41/064 ,  F02D2041/0067 ,  F02M26/01 ,  F02M26/02 ,  F02M26/04 ,  F02M26/05 ,  F02M26/06 ,  F02M2026/004 ,  Y02T10/144 ,  Y02T10/18 ,  Y02T10/47

摘要： A method and system for operating an internal combustion engine equipped with a turbocharger and an exhaust gas recirculation pipe fluidly connecting an exhaust gas line to an air intake duct upstream of a compressor of the turbocharger is disclosed. A value of a parameter indicative of a temperature of an exhaust gas is determined, and an internal recirculation strategy of the exhaust gas is actuated if the determined value is lower than a predetermined threshold value thereof. The internal recirculation strategy includes interrupting a flowing of exhaust gas through the exhaust gas recirculation pipe, and opening an exhaust valve during an intake stroke of a piston of the internal combustion engine.

公开(公告)号：US09664129B2

公开(公告)日：2017-05-30

申请号：US14616496

申请日：2015-02-06

申请人： Ford Global Technologies, LLC

发明人： Gopichandra Surnilla ,  Daniel Joseph Styles ,  James Alfred Hilditch ,  Imtiaz Ali ,  Yan Wang ,  Todd Anthony Rumpsa

IPC分类号： F02M25/07 ,  F02D41/00 ,  F02D41/24 ,  F02M26/47 ,  F02M26/06 ,  F02M26/49 ,  F02M26/48

CPC分类号： F02D41/0077 ,  F02D41/0007 ,  F02D41/003 ,  F02D41/005 ,  F02D41/0065 ,  F02D41/0072 ,  F02D41/2464 ,  F02D2041/0067 ,  F02M26/06 ,  F02M26/47 ,  F02M26/48 ,  F02M26/49 ,  Y02T10/47

摘要： Methods and systems are provided for determining changes in a flow area of an exhaust gas recirculation (EGR) valve for EGR flow estimates due to a change in temperature difference between a stem and body of the EGR valve. In one example, a method includes adjusting an EGR valve based on an estimate of EGR flow, the EGR flow estimated based on a pressure difference across the EGR valve and an adjusted valve flow area. The adjusted valve flow area may be based on the temperature difference between the stem and body of the EGR valve.

公开(公告)号：US20170082044A1

公开(公告)日：2017-03-23

申请号：US15312021

申请日：2014-05-21

申请人： NISSAN MOTOR CO., LTD.

发明人： Daisuke TAKAKI ,  Hirofumi TSUCHIDA ,  Kazuhiko SUGAWARA ,  Kenji SUZUKI ,  Takayuki SUI

IPC分类号： F02D41/00 ,  F02M26/52 ,  F02M26/47

CPC分类号： F02D41/0052 ,  F02D21/08 ,  F02D41/0072 ,  F02D45/00 ,  F02D2041/0067 ,  F02D2041/0075 ,  F02M26/00 ,  F02M26/47 ,  F02M26/52

摘要： An EGR control device includes an estimate EGR ratio calculating portion adapted to calculate an estimate EGR ratio from a fresh air flow amount at a joining portion with the EGR passage of an intake passage and an EGR gas amount passing through the EGR valve, and a joining portion EGR ratio estimating portion adapted to correct an estimate EGR ratio on the basis of a gaseous state inside the introduction passage when the EGR valve switches from a closed state to an open state, to calculate a joining portion EGR ratio being a proportion of an EGR gas amount with respect to fresh air in the joining portion.

公开(公告)号：US09389144B2

公开(公告)日：2016-07-12

申请号：US14026317

申请日：2013-09-13

申请人： Hyundai Motor Company ,  Kia Motors Corp.

发明人： Seung Hee Han

IPC分类号： F02D41/00 ,  G01M15/00 ,  G01M15/10

CPC分类号： G01M15/102 ,  F02D2041/0067 ,  F02M26/49

摘要： A method for diagnosing an exhaust gas recirculation (EGR) system includes: a setting step of setting a temperature map with respect to a temperature at an outlet side of an EGR line for an output value reflecting a driving state of a vehicle in a state in which an EGR valve is closed; a measuring step of measuring the temperature at the outlet side of the EGR line at the time of an operation of the EGR system; and a diagnosing step of diagnosing that a fault has been generated in an EGR system when the measured temperature at the outlet side of the EGR line is equal to or less than a reference value set in the temperature map.

摘要翻译： 一种用于诊断废气再循环（EGR）系统的方法，包括：设定步骤，将相对于EGR线的出口侧的温度设定为反映车辆的行驶状态的输出值的温度图， 关闭EGR阀; 在EGR系统的运转时测量EGR管路出口侧的温度的测量步骤; 以及诊断步骤，当EGR线路出口侧的测量温度等于或小于在温度图中设定的参考值时，诊断在EGR系统中已经产生了故障。

公开(公告)号：US20150136094A1

公开(公告)日：2015-05-21

申请号：US14399035

申请日：2013-04-16

申请人： NISSAN MOTOR CO., LTD.

发明人： Masaki Koga ,  Yuko Mito

IPC分类号： F02M25/07 ,  F02D41/00

CPC分类号： F02M25/0738 ,  F02D41/0055 ,  F02D41/0065 ,  F02D2041/0067 ,  F02D2041/1472 ,  F02M26/23 ,  F02M26/28 ,  F02M26/33 ,  Y02T10/47

摘要： An EGR gas cooling device for hybrid vehicle provided in an EGR system for refluxing a part of exhaust gas of an engine as EGR gas to an intake passage and configured to cool the EGR gas in a hybrid vehicle including the engine and a motor as travel drive sources of the vehicle includes an EGR cooler for cooling the EGR gas using a refrigerant flowing in a strong electric cooling circuit for cooling the motor.

摘要翻译： 一种用于混合动力车辆的EGR气体冷却装置，其设置在EGR系统中，用于将作为EGR气体的发动机的一部分废气回流到进气通道，并且构造成将包括发动机和电动机的混合动力车辆中的EGR气体冷却为行驶驱动 车辆的源头包括用于使用在用于冷却马达的强电冷却回路中流动的制冷剂来冷却EGR气体的EGR冷却器。

公开(公告)号：US20150128587A1

公开(公告)日：2015-05-14

申请号：US14605358

申请日：2015-01-26

申请人： Cummins Inc.

发明人： Marten H. Dane ,  Steven J. Kolhouse ,  Thomas M. Yonushonis ,  J. Stephen Wills ,  Samuel C. Geckler

IPC分类号： F02D41/00 ,  F02D41/04

CPC分类号： F02D41/0065 ,  F01N2240/36 ,  F02B29/0418 ,  F02B29/0425 ,  F02B29/0437 ,  F02B29/0493 ,  F02D9/04 ,  F02D13/0238 ,  F02D13/0261 ,  F02D35/027 ,  F02D41/0007 ,  F02D41/04 ,  F02D2041/001 ,  F02D2041/0067 ,  F02D2200/0402 ,  F02M26/06 ,  F02M26/15 ,  F02M26/24 ,  F02M26/25 ,  F02M26/27 ,  F02M26/28 ,  F02M26/33 ,  F02M45/02 ,  Y02T10/144 ,  Y02T10/146 ,  Y02T10/18 ,  Y02T10/47

摘要： A method includes operating a spark ignition engine and flowing low pressure exhaust gas recirculation (EGR) from an exhaust to an inlet of the spark ignition engine. The method includes interpreting a parameter affecting an operation of the spark ignition engine, and determining a knock index value in response to the parameter. The method further includes reducing a likelihood of engine knock in response to the knock index value exceeding a knock threshold value.

摘要翻译： 一种方法包括操作火花点火发动机并将低压排气再循环（EGR）从排气流到火花点火发动机的入口。 该方法包括解释影响火花点火发动机的操作的参数，以及响应于参数来确定爆震指数值。 该方法进一步包括响应于爆震指数值超过爆震阈值降低发动机爆震的可能性。

公开(公告)号：US09026399B2

公开(公告)日：2015-05-05

申请号：US13140084

申请日：2009-12-18

申请人： Katsuyuki Nagoshi

发明人： Katsuyuki Nagoshi

IPC分类号： G06F11/30 ,  F02D41/22 ,  F02D41/00

CPC分类号： F02D41/222 ,  F02D41/0007 ,  F02D41/0055 ,  F02D2041/0067 ,  F02D2200/0414 ,  Y02T10/40

摘要： Temperatures of intake-air temperature, intercooler outlet temperature and intake manifold temperature sensors are compared in cold time of an engine to determine any characteristic abnormality of the sensors. A first temperature difference is obtained from temperatures of the intercooler outlet temperature sensor before and after increase in boost pressure to determine any characteristic abnormality of the intercooler outlet temperature sensor. A second temperature difference is obtained from temperatures of the intake manifold temperature and intercooler outlet temperature sensors after opening an EGR valve to determine any characteristic abnormality of the intake manifold temperature sensor.

摘要翻译： 在发动机的冷时间比较进气温度，中间冷却器出口温度和进气歧管温度传感器的温度，以确定传感器的任何特征异常。 从增压压力升高前后的中间冷却器出口温度传感器的温度得到第一温差，以确定中间冷却器出口温度传感器的任何特征异常。 在打开EGR阀之后，从进气歧管温度和中间冷却器出口温度传感器的温度获得第二温度差，以确定进气歧管温度传感器的任何特征异常。

公开(公告)号：US20140372009A1

公开(公告)日：2014-12-18

申请号：US13919236

申请日：2013-06-17

申请人： GM Global Technology Operations LLC

发明人： B. Jerry Song ,  Gregory J. York ,  Jon C. Wasberg ,  Josef J. Correia ,  Timothy Ward Athan

IPC分类号： F02D41/00

CPC分类号： F02D41/0052 ,  F02D41/005 ,  F02D41/0072 ,  F02D41/1441 ,  F02D2009/0277 ,  F02D2041/0067 ,  F02D2200/0402 ,  F02D2200/0414 ,  F02D2200/0416 ,  Y02T10/47

摘要： An engine control system of a vehicle includes a first temperature module, a second temperature module, and an exhaust gas recirculation (EGR) control module. The first temperature module determines a temperature of gas within an intake manifold of an engine. The second temperature module determines a temperature of an EGR conduit that is coupled to the intake manifold. The EGR control module reduces opening of an EGR valve when the temperature of the gas and the temperature of the conduit is greater than a predetermined temperature.

摘要翻译： 车辆的发动机控制系统包括第一温度模块，第二温度模块和废气再循环（EGR）控制模块。 第一温度模块确定发动机的进气歧管内的气体的温度。 第二温度模块确定耦合到进气歧管的EGR导管的温度。 当气体的温度和导管的温度大于预定温度时，EGR控制模块减少EGR阀的打开。