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公开(公告)号：US20180142632A1
公开(公告)日：2018-05-24
申请号：US15356116
申请日：2016-11-18
申请人： Caterpillar Inc.
发明人： Glen Martin , David Ginter , Jaswinder Singh
CPC分类号： F02D41/0027 , F02D41/403 , F02D2041/389 , F02M21/0245 , F02M21/0263 , F02M21/0275 , F02P3/00 , F02P5/04 , F02P5/045 , F02P15/00 , F02P23/04 , Y02T10/32 , Y02T10/44
摘要： Operating a gaseous fuel engine includes injecting a pilot charge directly into a combustion chamber in an engine, and igniting one spray plume of the pilot charge. A flame front is propagated to other pilot spray plumes to produce an ignition flame for igniting later injected main charge spray plumes. Injection of the pilot and main charges is by way of the same fuel injection orifices.
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公开(公告)号：US20180080428A1
公开(公告)日：2018-03-22
申请号：US15826134
申请日：2017-11-29
CPC分类号： F02P17/02 , F02P5/04 , G01M15/04 , G01M15/10 , G01M15/106 , G01M15/11 , G07C5/006 , G07C5/0808
摘要： An induction cleaning analyzing system includes a pressure sensor, an ignition event detector, and a control module. The pressure sensor measures airflow pressures of intake air and/or exhaust from cylinders in a common airflow pathway of a vehicle. The ignition event detector determines ignition events of the cylinders. The control module obtains pressure waveforms representative of the airflow pressures and divides the pressure waveforms into waveform segments. The control module associates different subsets of the waveform segments with different ones of the cylinders using the ignition events. The control module also identifies cyclic variations in the airflow pressures flowing in the common airflow pathway and caused by at least one of the cylinders by examining the waveform segments associated with the at least one of the cylinders.
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公开(公告)号：US09885335B2
公开(公告)日：2018-02-06
申请号：US15003164
申请日：2016-01-21
CPC分类号： F02P17/02 , F02P5/04 , G01M15/04 , G01M15/10 , G01M15/106 , G01M15/11 , G07C5/006 , G07C5/0808
摘要： An induction cleaning analyzing system includes a pressure sensor, an ignition event detector, and a control module. The pressure sensor measures airflow pressures of intake air and/or exhaust from cylinders in a common airflow pathway of a vehicle. The ignition event detector determines ignition events of the cylinders. The control module obtains pressure waveforms representative of the airflow pressures and divides the pressure waveforms into waveform segments. The control module associates different subsets of the waveform segments with different ones of the cylinders using the ignition events. The control module also identifies cyclic variations in the airflow pressures flowing in the common airflow pathway and caused by at least one of the cylinders by examining the waveform segments associated with the at least one of the cylinders.
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公开(公告)号：US20170350326A1
公开(公告)日：2017-12-07
申请号：US15607382
申请日：2017-05-26
发明人： Yushi SHIBAIKE , Yoshiyuki KAGEURA , Satoru TANAKA
IPC分类号： F02D21/08 , F02D43/04 , F02P5/15 , F02D41/10 , F02D23/02 , F02P5/145 , F02D41/04 , F02D41/02 , F02P5/04 , F02D21/06 , F02D9/02
CPC分类号： F02D21/08 , F02B37/12 , F02B37/18 , F02D21/06 , F02D23/02 , F02D41/0007 , F02D41/0047 , F02D41/02 , F02D41/04 , F02D41/10 , F02D43/04 , F02D2009/0201 , F02D2009/022 , F02D2009/0222 , F02D2009/0235 , F02D2009/0284 , F02D2021/083 , F02D2041/0017 , F02D2200/0402 , F02M26/06 , F02P5/04 , F02P5/145 , F02P5/1502 , Y02T10/144 , Y02T10/47
摘要： A control device predicts whether temporary reduction occurs to a charging efficiency of fresh air in an in-cylinder gas by an influence of an EGR rate of the in-cylinder gas, which increases later than increase of a charging efficiency of the in-cylinder gas, if a first arithmetic operation is applied to calculating a target throttle opening degree based on a target charging efficiency which is increasing, in a case of shifting to an acceleration operation, by using a prediction model expressing dynamic characteristics of an internal combustion engine. When it is predicted that temporary reduction occurs to the charging efficiency of the fresh air, the control device calculates the target throttle opening degree by a second arithmetic operation by which an increase speed of a throttle opening degree is restrained more than by the first arithmetic operation, instead of calculating the target throttle opening degree by the first arithmetic operation.
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公开(公告)号：US09777618B2
公开(公告)日：2017-10-03
申请号：US15151918
申请日：2016-05-11
发明人： Takatoshi Akase , Masahiko Asano
CPC分类号： F01P7/16 , F02D35/023 , F02D35/025 , F02D41/0007 , F02D41/005 , F02D41/0077 , F02D41/34 , F02D2200/021 , F02P5/04 , F02P5/152 , Y02T10/144 , Y02T10/44 , Y02T10/46 , Y02T10/47
摘要： A controller for an internal combustion engine includes a combustion pressure sensor and a temperature calculator. The combustion pressure sensor has a pressure receiver, a semiconductor device, and a detection circuit. The pressure receiver is arranged in a combustion chamber. The internal pressure applied to the pressure receiver is transmitted to the semiconductor device, and the resistance value of the semiconductor device is changed in accordance with own temperature and own deformation caused by the internal pressure. The detection circuit outputs power in accordance with the pressure applied to the pressure receiver and the temperature of the semiconductor device. The temperature calculator calculates a temperature of the combustion chamber based on an output of the detection circuit at the time when a combustion pressure is not acting on the pressure receiver.
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公开(公告)号：US09683497B2
公开(公告)日：2017-06-20
申请号：US14063896
申请日：2013-10-25
CPC分类号： F02D41/0072 , F02D11/06 , F02D11/10 , F02D11/105 , F02D21/06 , F02D21/08 , F02D37/02 , F02D41/0002 , F02D41/0007 , F02D41/0025 , F02D41/0047 , F02D41/0065 , F02D41/02 , F02D41/14 , F02D41/1438 , F02D41/1439 , F02D41/144 , F02D41/1444 , F02D41/1454 , F02D2021/083 , F02D2041/0075 , F02D2200/02 , F02D2200/04 , F02D2200/0418 , F02D2200/60 , F02D2200/602 , F02P5/04 , F02P5/045 , F02P5/145 , F02P5/15 , F02P5/1502 , F02P5/1516 , Y02T10/144 , Y02T10/46 , Y02T10/47
摘要： Methods and systems are provided for adjusting a throttle based on an intake oxygen sensor output. In one example, a method may include adjusting a position of a throttle based on a dilution threshold and a total aircharge dilution level, the total dilution aircharge level based on an output of an intake oxygen sensor. Additionally, spark timing may be adjusted based on the total aircharge dilution level.
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公开(公告)号：US20160265429A1
公开(公告)日：2016-09-15
申请号：US15035896
申请日：2013-11-22
申请人： HUSQVARNA AB
发明人： Ruben Enriquez , Robert Schriever
CPC分类号： F02B63/02 , F02D41/064 , F02D41/067 , F02D2200/0414 , F02D2400/06 , F02M1/02 , F02P5/04
摘要： A hand-held power tool may include a housing, a power unit disposed within the housing and configured to operate at least in part in response to actuation of a trigger, a working assembly powered responsive to operation of the power unit, and an activation lever having an integrated lockout member. The activation lever may selectively engage a first fuel enrichment mode associated with startup of the power unit in a first range of ambient temperatures and a second fuel enrichment mode associated with startup of the power unit in a second range of ambient temperatures based on a position of the activation lever. Selective engagement of the first fuel enrichment mode or the second fuel enrichment mode may be enabled responsive to actuation of at least the lockout member and positioning of the activation lever.
摘要翻译： 手持式电动工具可以包括壳体，设置在壳体内并被配置为至少部分地响应于触发器的致动而操作的动力单元，响应于动力单元的操作而动力的工作组件和启动杆 具有集成的锁定构件。 激活杆可以选择性地接合在第一环境温度范围内与功率单元启动相关联的第一燃料浓缩模式，以及在第二环境温度范围内与功率单元启动相关联的第二燃料浓缩模式，其基于 激活杆。 第一燃料浓缩模式或第二燃料浓缩模式的选择性接合可以响应于至少锁定构件的致动和激活杆的定位而被启用。
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公开(公告)号：US20160169185A1
公开(公告)日：2016-06-16
申请号：US15053299
申请日：2016-02-25
申请人： NGK INSULATORS, LTD.
CPC分类号： F02P5/04 , F02B23/06 , F02B23/0672 , F02B2023/0612 , F02F3/0015 , F02F3/0084 , F02F3/045 , F02F3/14 , F02F3/26 , F02F3/285 , F02M26/05 , F02M26/07 , F02M26/34 , F02M26/44 , F02M26/52 , F05C2203/08 , F05C2203/0843 , F05C2203/0869 , F05C2203/0886 , F05C2203/0895 , Y02T10/125
摘要： An internal combustion engine 20 includes a combustion chamber 26, a fuel injector 31 injecting fuel into the combustion chamber 26, a cylinder 22, a piston 24 having a crown and reciprocating in the cylinder 22, the crown being exposed to the combustion chamber 26, and an ignition delay enhancer prolonging an ignition delay of a fuel-air mixture in the combustion chamber 26. A ceramic member 24a is disposed on at least a fuel injection port, to which fuel is injected from the fuel injector 31, of the crown of the piston 24.
摘要翻译： 内燃机20包括燃烧室26，将燃料喷射到燃烧室26中的燃料喷射器31，气缸22，具有冠部并在气缸22中往复运动的活塞24，冠部暴露于燃烧室26， 以及点燃延迟增强器延长燃烧室26中的燃料 - 空气混合物的点火延迟。陶瓷构件24a设置在至少燃料喷射端口上，燃料从燃料喷射器31喷射到燃料喷射口31的顶部 活塞24。
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公开(公告)号：US09279406B2
公开(公告)日：2016-03-08
申请号：US13837581
申请日：2013-03-15
CPC分类号： F02P17/02 , F02P5/04 , G01M15/04 , G01M15/10 , G01M15/106 , G01M15/11 , G07C5/006 , G07C5/0808
摘要： An induction cleaning analyzing system includes a pressure sensor, an ignition event detector, and a control module. The pressure sensor measures airflow pressures of intake air and/or exhaust from cylinders in a common airflow pathway of a vehicle. The ignition event detector determines ignition events of the cylinders. The control module obtains pressure waveforms representative of the airflow pressures and divides the pressure waveforms into waveform segments. The control module associates different subsets of the waveform segments with different ones of the cylinders using the ignition events. The control module also identifies cyclic variations in the airflow pressures flowing in the common airflow pathway and caused by at least one of the cylinders by examining the waveform segments associated with the at least one of the cylinders.
摘要翻译： 感应清洗分析系统包括压力传感器，点火事件检测器和控制模块。 压力传感器测量车辆的公共气流通道中的气缸的进气和/或排气的气压。 点火事件检测器确定气缸的点火事件。 控制模块获得代表气流压力的压力波形，并将压力波形分成波形段。 控制模块使用点火事件将波形段的不同子集与不同的气缸相关联。 控制模块还通过检查与至少一个气缸相关联的波形段来识别在公共气流路径中流动并由至少一个气缸引起的气流压力的循环变化。
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公开(公告)号：US20150211474A1
公开(公告)日：2015-07-30
申请号：US14163634
申请日：2014-01-24
CPC分类号： F02P15/08 , F02D41/0062 , F02P3/02 , F02P3/06 , F02P5/04 , F02P5/1504 , F02P5/1516 , F02P15/10 , Y02T10/46
摘要： An optimized multi-strike ignition technique for an internal combustion engine includes, in one exemplary implementation, determining (i) a number of ignition coil re-strikes, (ii) a re-dwell percentage for ignition coil re-strikes, and (iii) a time between ignition coil re-strikes based on total exhaust gas recirculation (EGR) and engine speed. The optimized multi-strike engine ignition technique also includes controlling multi-strike engine ignition by controlling a sparking system of the engine based on the determined multi-strike parameters.
摘要翻译： 在一个示例性实施方式中，用于内燃机的优化的多点火点火技术包括确定（i）点火线圈重击的次数，（ii）点火线圈重击的重新停留百分比，和（iii ）基于总排气再循环（EGR）和发动机转速的点火线圈重击之间的时间。 优化的多罢工发动机点火技术还包括通过基于确定的多冲击参数控制发动机的火花系统来控制多罢工发动机点火。
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