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公开(公告)号：US09926872B2
公开(公告)日：2018-03-27
申请号：US14997309
申请日：2016-01-15
IPC分类号： F02D35/00 , F02D41/14 , B60W20/10 , F01N13/00 , F02D41/20 , F02D41/26 , F02M35/10 , F01N9/00 , F02D41/22 , F02D41/04 , F02D41/12
CPC分类号： F02D41/1458 , B60W20/10 , F01N9/00 , F01N13/008 , F01N2560/025 , F01N2590/11 , F01N2900/08 , F01N2900/10 , F01N2900/12 , F02D35/0015 , F02D41/042 , F02D41/123 , F02D41/144 , F02D41/1456 , F02D41/1495 , F02D41/20 , F02D41/222 , F02D41/263 , F02D2041/2051 , F02D2200/0406 , F02D2200/0408 , F02D2200/0418 , F02D2200/101 , F02D2200/704 , F02M35/10393 , Y02T10/40 , Y02T10/47
摘要： Methods and systems are provided for leveraging the pressure dependency of an oxygen sensor for estimating an engine ambient pressure. An intake or exhaust oxygen sensor is used for ambient pressure estimation by applying a reference voltage to the sensor while the engine is being pulled-down in a hybrid vehicle, and correcting an output of the sensor for dilution effects due to ambient humidity. The estimated ambient pressure is used to correct or confirm pressure estimated by other sources, such as other pressure sensors or a pressure model, as well as to tune the performance of the engine.
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2.发明申请公开(公告)号：US20170167420A1
公开(公告)日：2017-06-15
申请号：US15438629
申请日：2017-02-21
CPC分类号： F02D41/145 , F02D21/08 , F02D35/0015 , F02D41/0007 , F02D41/0025 , F02D41/0235 , F02D41/029 , F02D41/123 , F02D41/1402 , F02D41/1448 , F02D41/1455 , F02D41/1456 , F02D41/26 , F02D41/3011 , F02D41/3094 , F02D2041/001 , F02D2041/1433 , F02D2200/0404 , F02D2200/0406 , F02D2200/0414 , F02D2200/0418 , F02D2200/0612 , F02D2200/0802 , F02D2200/1002 , F02D2200/101 , F02D2200/501 , F02M26/47 , G01M15/104
摘要： Methods and systems are provided for estimating an engine exhaust pressure based on outputs from an exhaust oxygen sensor. In one example, a method may include estimating an exhaust pressure of exhaust gas flowing through an engine exhaust passage based on a difference between a first output of an oxygen sensor disposed in the exhaust passage and a second output of the oxygen sensor and then adjusting engine operation based on the estimated exhaust pressure. As one example, both the first and second outputs may be taken while operating the sensor in a variable voltage mode, after increasing a reference voltage of the oxygen sensor from a lower, first voltage to a higher, second voltage.
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3.发明授权Methods and systems for estimating exhaust pressure with a variable voltage oxygen sensor 有权用可变电压氧传感器估算排气压力的方法和系统公开(公告)号：US09574510B2
公开(公告)日：2017-02-21
申请号：US14637060
申请日：2015-03-03
CPC分类号： F02D41/145 , F02D21/08 , F02D35/0015 , F02D41/0007 , F02D41/0025 , F02D41/0235 , F02D41/029 , F02D41/123 , F02D41/1402 , F02D41/1448 , F02D41/1455 , F02D41/1456 , F02D41/26 , F02D41/3011 , F02D41/3094 , F02D2041/001 , F02D2041/1433 , F02D2200/0404 , F02D2200/0406 , F02D2200/0414 , F02D2200/0418 , F02D2200/0612 , F02D2200/0802 , F02D2200/1002 , F02D2200/101 , F02D2200/501 , F02M26/47 , G01M15/104
摘要： Methods and systems are provided for estimating an engine exhaust pressure based on outputs from an exhaust oxygen sensor. In one example, a method may include estimating an exhaust pressure of exhaust gas flowing through an engine exhaust passage based on a difference between a first output of an oxygen sensor disposed in the exhaust passage and a second output of the oxygen sensor and then adjusting engine operation based on the estimated exhaust pressure. As one example, both the first and second outputs may be taken while operating the sensor in a variable voltage mode, after increasing a reference voltage of the oxygen sensor from a lower, first voltage to a higher, second voltage.
摘要翻译： 提供了用于基于来自排气氧传感器的输出来估计发动机排气压力的方法和系统。 在一个示例中，方法可以包括基于设置在排气通道中的氧传感器的第一输出和氧传感器的第二输出之间的差异来估计流过发动机排气通道的废气的排气压力，然后调整发动机 基于估计的排气压力进行操作。 作为一个示例，在将氧传感器的参考电压从较低的第一电压增加到较高的第二电压之后，可以在以可变电压模式操作传感器的同时采取第一和第二输出。
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公开(公告)号：US20170002760A1
公开(公告)日：2017-01-05
申请号：US15200581
申请日：2016-07-01
发明人： Go Hayashita , Koji Ide
CPC分类号： F02D41/1494 , F01N3/101 , F01N9/00 , F01N11/007 , F01N2430/06 , F01N2560/025 , F01N2560/14 , F01N2560/20 , F01N2900/08 , F02D35/0015 , F02D41/0295 , F02D41/065 , F02D41/1441 , F02D41/1454 , F02D41/26 , F02D2041/1418 , F02D2200/0814 , Y02T10/22
摘要： A control device for an internal combustion engine comprises an air-fuel ratio control part configured to control the air-fuel ratio of the exhaust gas and a heating control part configured to control the heating of the air-fuel ratio sensors. The heating control part controls the sensor heaters so that the temperature of the upstream air-fuel ratio sensor becomes less than the activation temperature and so that the temperature of the downstream air-fuel ratio sensor becomes the activation temperature or more while the internal combustion engine is stopped by the automatic stop function. The air-fuel ratio control part controls the exhaust air-fuel ratio based on the outputs of the two air-fuel ratio sensors during engine operation and control the air-fuel ratio temporarily based on only the output of the downstream air-fuel ratio sensor after the internal combustion engine has been restarted after automatic stop.
摘要翻译： 用于内燃机的控制装置包括：空气燃料比控制部，被配置为控制排气的空燃比;以及加热控制部，其配置为控制空燃比传感器的加热。 加热控制部控制传感器加热器，使得上游空燃比传感器的温度变得小于激活温度，并且使得下游空燃比传感器的温度变为激活温度以上，同时内燃机 由自动停止功能停止。 空燃比控制部基于发动机运转时的两个空燃比传感器的输出来控制排气空燃比，并且仅基于下游空燃比传感器的输出暂时控制空燃比 内燃机自动停机后重启后。
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5.发明申请METHOD, SYSTEM, AND APPARATUS FOR DIAGNOSING AN EXHAUST AFTERTREATMENT COMPONENT 有权用于诊断排气后处理组件的方法，系统和装置公开(公告)号：US20150315952A1
公开(公告)日：2015-11-05
申请号：US14799763
申请日：2015-07-15
申请人： Cummins IP, Inc.
发明人： Tony James Hall
CPC分类号： F01N11/007 , F01N3/18 , F01N3/2066 , F01N3/208 , F01N11/00 , F01N2550/02 , F01N2550/05 , F01N2610/02 , F01N2900/1402 , F01N2900/1411 , F01N2900/1621 , F01N2900/1818 , F02D35/0015 , G01N33/0037 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： An apparatus includes an engine output module that determines an engine output power parameter for an engine. The apparatus includes an output power threshold module that determines if the engine output power parameter is below an output power threshold. The apparatus includes a NOx module that determines a nitrogen oxide (“NOx”) efficiency of a selective catalytic reduction (“SCR”) system in response to the output power threshold module determining that the determined engine output power parameter is below the output power threshold. The SCR system is in exhaust receiving communication with the engine. The apparatus includes a NOx threshold module that determines if the NOx efficiency is below a NOx efficiency threshold, and a NOx warning module that sends a NOx alarm signal in response to the NOx threshold module determining that the NOx efficiency is below the NOx efficiency threshold.
摘要翻译： 一种装置包括确定发动机的发动机输出功率参数的发动机输出模块。 该装置包括输出功率阈值模块，其确定发动机输出功率参数是否低于输出功率阈值。 该装置包括：NOx模块，其响应于输出功率阈值模块确定所确定的发动机输出功率参数低于输出功率阈值来确定选择性催化还原（“SCR”）系统的氮氧化物（“NOx”）效率 。 SCR系统处于与发动机接收的排气中。 该装置包括：NOx阈值模块，其确定NOx效率是否低于NOx效率阈值;以及NOx警报模块，其响应于NOx阈值模块确定NOx效率低于NOx效率阈值而发送NOx警报信号。
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6.发明授权Method, system, and apparatus for diagnosing an exhaust aftertreatment component 有权用于诊断排气后处理组件的方法，系统和装置公开(公告)号：US09109488B2
公开(公告)日：2015-08-18
申请号：US13934143
申请日：2013-07-02
申请人： Cummins IP, Inc.
发明人： Tony James Hall
CPC分类号： F01N11/007 , F01N3/18 , F01N3/2066 , F01N3/208 , F01N11/00 , F01N2550/02 , F01N2550/05 , F01N2610/02 , F01N2900/1402 , F01N2900/1411 , F01N2900/1621 , F01N2900/1818 , F02D35/0015 , G01N33/0037 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： An apparatus includes an engine output module that determines an engine output power parameter for an engine. The apparatus includes an output power threshold module that determines if the engine output power parameter is below an output power threshold. The apparatus includes a NOx module that determines a nitrogen oxide (“NOx”) efficiency of a selective catalytic reduction (“SCR”) system in response to the output power threshold module determining that the determined engine output power parameter is below the output power threshold. The SCR system is in exhaust receiving communication with the engine. The apparatus includes a NOx threshold module that determines if the NOx efficiency is below a NOx efficiency threshold, and a NOx warning module that sends a NOx alarm signal in response to the NOx threshold module determining that the NOx efficiency is below the NOx efficiency threshold.
摘要翻译： 一种装置包括确定发动机的发动机输出功率参数的发动机输出模块。 该装置包括输出功率阈值模块，其确定发动机输出功率参数是否低于输出功率阈值。 该装置包括：NOx模块，其响应于输出功率阈值模块确定所确定的发动机输出功率参数低于输出功率阈值来确定选择性催化还原（“SCR”）系统的氮氧化物（“NOx”）效率 。 SCR系统处于与发动机接收的排气中。 该装置包括：NOx阈值模块，其确定NOx效率是否低于NOx效率阈值;以及NOx警报模块，其响应于NOx阈值模块确定NOx效率低于NOx效率阈值而发送NOx警报信号。
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7.发明申请METHOD, SYSTEM, AND APPARATUS FOR DIAGNOSING AN EXHAUST AFTERTREATMENT COMPONENT 有权用于诊断排气后处理组件的方法，系统和装置公开(公告)号：US20140260201A1
公开(公告)日：2014-09-18
申请号：US13934143
申请日：2013-07-02
申请人： Cummins IP, Inc.
发明人： Tony James Hall
IPC分类号： F01N3/18
CPC分类号： F01N11/007 , F01N3/18 , F01N3/2066 , F01N3/208 , F01N11/00 , F01N2550/02 , F01N2550/05 , F01N2610/02 , F01N2900/1402 , F01N2900/1411 , F01N2900/1621 , F01N2900/1818 , F02D35/0015 , G01N33/0037 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： An apparatus includes an engine output module that determines an engine output power parameter for an engine. The apparatus includes an output power threshold module that determines if the engine output power parameter is below an output power threshold. The apparatus includes a NOx module that determines a nitrogen oxide (“NOx”) efficiency of a selective catalytic reduction (“SCR”) system in response to the output power threshold module determining that the determined engine output power parameter is below the output power threshold. The SCR system is in exhaust receiving communication with the engine. The apparatus includes a NOx threshold module that determines if the NOx efficiency is below a NOx efficiency threshold, and a NOx warning module that sends a NOx alarm signal in response to the NOx threshold module determining that the NOx efficiency is below the NOx efficiency threshold.
摘要翻译： 一种装置包括确定发动机的发动机输出功率参数的发动机输出模块。 该装置包括输出功率阈值模块，其确定发动机输出功率参数是否低于输出功率阈值。 该装置包括：NOx模块，其响应于输出功率阈值模块确定所确定的发动机输出功率参数低于输出功率阈值来确定选择性催化还原（“SCR”）系统的氮氧化物（“NOx”）效率 。 SCR系统处于与发动机接收的排气中。 该装置包括：NOx阈值模块，其确定NOx效率是否低于NOx效率阈值;以及NOx警报模块，其响应于NOx阈值模块确定NOx效率低于NOx效率阈值而发送NOx警报信号。
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公开(公告)号：US06543422B2
公开(公告)日：2003-04-08
申请号：US10080201
申请日：2002-02-22
IPC分类号： F02D4104
CPC分类号： B60R16/0236 , F02D11/105 , F02D35/0015 , F02D41/021 , F02D41/023 , F02D41/14 , F02D41/1479 , F02D41/1486 , F02D41/2406 , F02D2200/501 , F02D2200/602 , F02D2200/702 , F02D2250/18 , F02D2400/12 , Y02T10/84 , Y10T477/68
摘要： A control device and a control method capable of eliminating a torque variation in changing an air/fuel ratio and establishing a compatibility of promotion in fuel economy with promotion in drivability is provided. The device includes an outer environment detector for detecting an outer environment in running a vehicle, a running environment determining device for predicting a current running environment in accordance with the outer environment, a data storage device for storing data for changing a driving characteristic, a selecting device for selecting the data, a control quantity calculator for calculating a control quantity based on the data, and a control actuator for controlling a control object. The engine output is efficiently utilized since the air/fuel ratio is changed in accordance with the change in the running environment, and the fuel cost reduction and the promotion of the drivability can be achieved since the selecting of the air/fuel ratio is performed in accordance with the running environment.
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公开(公告)号：US6112705A
公开(公告)日：2000-09-05
申请号：US233919
申请日：1999-01-21
申请人： Shinji Nakayama , Koji Mori , Takazou Hakozaki , Akira Suzuki
发明人： Shinji Nakayama , Koji Mori , Takazou Hakozaki , Akira Suzuki
IPC分类号： F02M25/022 , F02B47/02 , F02D19/12 , F02D21/08 , F02D35/00 , F02D41/00 , F02D43/00 , F02M25/025 , F02M25/07 , F02B47/00
CPC分类号： F02D35/0015 , F02B47/02 , F02D19/12 , F02D21/08 , F02M25/0225 , F02M25/0227 , F02M25/03 , F02B29/0406 , F02M26/05
摘要： A water injection amount control system for a fuel and water injection engine, comprises running state detecting unit for detecting the running state of the engine; an EGR system for recirculating part of exhaust gas of the engine to a combustion chamber of the engine; EGR system operating state detecting unit for detecting or estimating the operating state of the EGR system; water injection amount regulating unit for regulating an amount of water to be injected to the combustion chamber of the engine; and control unit for controlling the operation of the water injection amount regulating unit: wherein the system is arranged to have water injection amount setting unit for deciding a water injection amount based on information from the running state detecting unit and on the operating state of the EGR system detected by the EGR system operating state detecting unit, so that the control unit controls the operation of the water injection amount regulating unit based on the water injection amount decided by the water injection amount setting unit.
摘要翻译： 一种用于燃料和水喷射发动机的喷水量控制系统，包括用于检测发动机的运行状态的运行状态检测单元; EGR系统，用于将发动机的废气的一部分再循环到发动机的燃烧室; EGR系统运行状态检测单元，用于检测或估计EGR系统的运行状态; 注水量调节单元，用于调节要喷射到发动机的燃烧室的水量; 以及用于控制喷水量调节单元的操作的控制单元，其中，所述系统布置成具有用于基于来自运行状态检测单元的信息和EGR的运行状态来决定喷水量的喷水量设定单元 系统由EGR系统运行状态检测单元检测，使得控制单元基于由喷水量设定单元决定的喷水量来控制喷水量调节单元的操作。
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公开(公告)号：US20240003309A1
公开(公告)日：2024-01-04
申请号：US18089284
申请日：2023-02-20
申请人： Bresbo AB
发明人： Charles E. Ramberg
CPC分类号： F02D41/1453 , F02D41/1406 , B60W10/06 , B60W10/08 , B60W20/40 , B60W30/1882 , F02D35/0015 , F02D41/1461 , F02D41/1401 , F02D41/1462 , F02D2041/1412 , F02D41/1459 , B60W2710/06
摘要： A powertrain control unit may be configured to control an engine to optimize the emission of CO2 vs. criteria pollutants according to various duty cycle parameters. The control unit may identify a first operating condition is expected to fulfill a demand for output with an exhaust stream having a first amount of a pollutant (e.g., CO2, NOx, particulate matter), and a second operating condition expected to fulfill the demand with an exhaust stream having a reduced amount of the pollutant as compared to the first amount. The powertrain control unit may receive duty cycle information to control the engine to fulfill the demand per the second operating condition, yielding the reduced amount of pollutant in the exhaust. Duty cycle information may include speed, location, position, rotation, temperature, and/or other information. A vehicle, backhoe, bulldozer, crane, and/or combine harvester may comprise the powertrain control unit and an engine and aftertreatment system. An exhaust aftertreatment system may be remotely activated, which may reduce warmup time associated with emissions mitigation.
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