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公开(公告)号：US09638129B2
公开(公告)日：2017-05-02
申请号：US14377532
申请日：2013-02-15
发明人： Hideki Nishio , Junnosuke Andou
IPC分类号： F02D41/30 , F02D35/02 , F02B19/10 , F02M21/02 , F02D19/02 , F02B29/04 , F02D41/00 , F02B19/12
CPC分类号： F02D41/3011 , F02B19/1023 , F02B19/12 , F02B29/0443 , F02D19/023 , F02D19/025 , F02D35/02 , F02D35/023 , F02D41/0027 , F02D41/009 , F02D2200/1015 , F02M21/0284 , Y02T10/125 , Y02T10/32
摘要： A controller for a gas engine includes a cycle detection unit 67 configured to detect a crank angle period of a single combustion cycle of an engine including a plurality of cylinders based on a crank angle detection value inputted from a crank angle detector 75, a misfire detection unit 69 configured to detect a misfire in a combustion chamber 37 based on an in-cylinder pressure detection value inputted from the in-cylinder pressure detector 59, and a simultaneous misfire determination unit 73 configured to determine a simultaneous misfire of more than one cylinder when a total number of cylinders where the misfire is detected in the single combustion cycle by the misfire detection unit 69 is not less than a preset threshold value of a cylinder number. The fuel gas to all of the cylinders is shut off when the simultaneous misfire of more than one cylinder in the single combustion cycle is determined by the simultaneous misfire determination unit 73.
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公开(公告)号：US20150000635A1
公开(公告)日：2015-01-01
申请号：US14377532
申请日：2013-02-15
发明人： Hideki Nishio , Junnosuke Andou
IPC分类号： F02D41/30
CPC分类号： F02D41/3011 , F02B19/1023 , F02B19/12 , F02B29/0443 , F02D19/023 , F02D19/025 , F02D35/02 , F02D35/023 , F02D41/0027 , F02D41/009 , F02D2200/1015 , F02M21/0284 , Y02T10/125 , Y02T10/32
摘要： A controller for a gas engine includes a cycle detection unit 67 configured to detect a crank angle period of a single combustion cycle of an engine including a plurality of cylinders based on a crank angle detection value inputted from a crank angle detector 75, a misfire detection unit 69 configured to detect a misfire in a combustion chamber 37 based on an in-cylinder pressure detection value inputted from the in-cylinder pressure detector 59, and a simultaneous misfire determination unit 73 configured to determine a simultaneous misfire of more than one cylinder when a total number of cylinders where the misfire is detected in the single combustion cycle by the misfire detection unit 69 is not less than a preset threshold value of a cylinder number. The fuel gas to all of the cylinders is shut of when the simultaneous misfire of more than one cylinder in the single combustion cycle is determined by the simultaneous misfire determination unit 73.
摘要翻译： 用于燃气发动机的控制器包括循环检测单元67，其被配置为基于从曲柄角检测器75输入的曲柄角检测值来检测包括多个气缸的发动机的单个燃烧循环的曲轴转角周期，失火检测 单元69，其被构造成基于从缸内压力检测器59输入的缸内压力检测值来检测燃烧室37中的失火;以及同时失火判定单元73，其被配置为，当同时失火确定单元73确定多于一个气缸的同时失火时 通过失火检测单元69在单个燃烧循环中检测到失火的气缸的总数不小于气缸数的预设阈值。 当单个燃烧循环中多于一个气缸的同时失火由同时失火判定单元73确定时，关闭所有气缸的燃料气体。
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3.发明授权公开(公告)号：US09157409B2
公开(公告)日：2015-10-13
申请号：US14362799
申请日：2013-01-17
发明人： Junnosuke Andou
CPC分类号： F02P5/045 , F02D19/023 , F02D35/023 , F02D41/0027 , F02D41/0087 , F02D41/22 , F02D41/30 , F02D2041/227 , F02D2041/228 , F02D2200/0406 , F02D2200/0414 , F02P5/1502 , F02P5/151 , F02P5/1512 , F02P5/153 , Y02T10/46
摘要： In a control device 50A, an actual compression ratio calculation unit 502 calculates an actual compression ratio ε from an air supply pressure Ps, a cylinder pressure before ignition Pc and an air supply temperature Ts. A deposit deposition estimation unit 504 determines the deposit deposition state of a combustion chamber 18 from a deviation Δε between the actual compression ratio ε and a design compression ratio ε′. When the deviation Δε exceeds a threshold value, ignition timing or air-fuel ratio being operation conditions of an internal combustion engine is corrected based on a correction map 508 so as to suppress deterioration of exhaust gas.
摘要翻译： 在控制装置50A中，实际压缩率计算部502计算实际压缩比＆egr; 从供气压力Ps，点火前的气缸压力Pc和供气温度Ts。 沉积物沉积估计单元504根据偏差＆Dgr;＆amp;＆gt;确定燃烧室18的沉积物沉积状态。 实际压缩比＆egr之间 和设计压缩比“。 当偏差＆Dgr＆ 超过阈值时，基于校正图508校正作为内燃机的运转状态的点火正时或空燃比，以抑制废气的劣化。
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4.发明申请公开(公告)号：US20140331971A1
公开(公告)日：2014-11-13
申请号：US14362799
申请日：2013-01-17
发明人： Junnosuke Andou
CPC分类号： F02P5/045 , F02D19/023 , F02D35/023 , F02D41/0027 , F02D41/0087 , F02D41/22 , F02D41/30 , F02D2041/227 , F02D2041/228 , F02D2200/0406 , F02D2200/0414 , F02P5/1502 , F02P5/151 , F02P5/1512 , F02P5/153 , Y02T10/46
摘要： In a control device 50A, an actual compression ratio calculation unit 502 calculates an actual compression ratio ε from an air supply pressure Ps, a cylinder pressure before ignition Pc and an air supply temperature Ts. A deposit deposition estimation unit 504 determines the deposit deposition state of a combustion chamber 18 from a deviation Δε between the actual compression ratio ε and a design compression ratio ε′. When the deviation Δε exceeds a threshold value, ignition timing or air-fuel ratio being operation conditions of an internal combustion engine is corrected based on a correction map 508 so as to suppress deterioration of exhaust gas.
摘要翻译： 在控制装置50A中，实际压缩率计算部502计算实际压缩比＆egr; 从供气压力Ps，点火前的气缸压力Pc和供气温度Ts。 沉积物沉积估计单元504根据偏差＆Dgr;＆amp;＆gt;确定燃烧室18的沉积物沉积状态。 实际压缩比＆egr之间 和设计压缩比“。 当偏差＆Dgr＆ 超过阈值时，基于校正图508校正作为内燃机的运转状态的点火正时或空燃比，以抑制废气的劣化。
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