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1. 发明授权

US5598821A Misfire detection system for an internal combustion engine 失效
标题翻译：内燃机失火检测系统
公开(公告)号：US5598821A
公开(公告)日：1997-02-04
申请号：US443567
申请日：1995-05-18
申请人： Shukoh Terata , Kenichi Maeda , Shigetaka Kuroda , Yuichi Shimasaki , Masaki Kanehiro , Takuji Ishioka , Takashi Hisaki , Jiro Takagi , Eitetsu Akiyama , Shigeki Baba , Shigeru Maruyama
发明人： Shukoh Terata , Kenichi Maeda , Shigetaka Kuroda , Yuichi Shimasaki , Masaki Kanehiro , Takuji Ishioka , Takashi Hisaki , Jiro Takagi , Eitetsu Akiyama , Shigeki Baba , Shigeru Maruyama
IPC分类号： F02D29/02 , F02D45/00 , F02P5/15 , F02P17/00 , F02P17/12 , F02P5/00
CPC分类号： F02P17/12 , F02P5/1504
摘要： A high probability of detecting an erroneous misfire occurs when combustion becomes unstable during jolt control. Therefore, during jolt control the reliability of the misfire detection system is degraded. As a result, the misfire detection system is inactivated during jolt control by discontinuing the misfire detection, or by deliberately deeming no misfire has occurred if jolt control has occurred. Alternatively, the misfire detection sensitivity is masked during jolt control.
摘要翻译：当在颠簸控制期间燃烧变得不稳定时，发生错误的失火的高概率。因此，在颠簸控制期间，失火检测系统的可靠性降低。因此，通过停止失火检测，或者通过故意认为如果发生抖动控制，则不发生失火，在失速控制中失火检测系统被停用。或者，在颠簸控制期间，失火检测灵敏度被屏蔽。

2. 发明授权

US5215067A Misfire-detecting system for internal combustion engines 失效
标题翻译：内燃机故障检测系统
公开(公告)号：US5215067A
公开(公告)日：1993-06-01
申请号：US846238
申请日：1992-03-05
申请人： Yuuichi Shimasaki , Masaki Kanehiro , Takuji Ishioka , Takashi Hisaki , Shigeru Maruyama , Masataka Chikamatsu , Shigetaka Kuroda , Hideaki Arai , Shigeki Baba
发明人： Yuuichi Shimasaki , Masaki Kanehiro , Takuji Ishioka , Takashi Hisaki , Shigeru Maruyama , Masataka Chikamatsu , Shigetaka Kuroda , Hideaki Arai , Shigeki Baba
IPC分类号： F02P17/12
CPC分类号： F02P17/12 , F02P2017/121 , F02P2017/125
摘要： A misfire-detecting system detects a misfire occurring in an internal combustion engine. A value of sparking voltage after generation of an ignition command signal indicative of ignition timing is detected and compared with a predetermined voltage value, and it is determines based upon the results of the comparison whether or not a misfire has occurred in the engine. The determination as to occurrence of the misfire is based upon at least one of a time period over which the detected value of the sparking voltage exceeds the predetermined voltage value, and an area of a portion of detected values of the sparking voltage exceeding the predetermined voltage value.
摘要翻译：失火检测系统检测内燃机中发生的失火。检测出产生指示点火正时的点火指令信号后的点火电压值，并将其与预定电压值进行比较，并根据比较结果确定发动机中是否发生失火。关于发生失火的判定基于火花电压的检测值超过预定电压值的时间段中的至少一个，并且火花电压的检测值的一部分的面积超过预定电压值。

3. 发明授权

US5375462A Misfire detecting system for internal combustion engine 失效
标题翻译：内燃机失火检测系统
公开(公告)号：US5375462A
公开(公告)日：1994-12-27
申请号：US61712
申请日：1993-05-17
申请人： Shigetaka Kuroda , Kazutomo Sawamura , Shukoh Terata , Masaki Kanehiro , Takuji Ishioka , Kenichi Maeda
发明人： Shigetaka Kuroda , Kazutomo Sawamura , Shukoh Terata , Masaki Kanehiro , Takuji Ishioka , Kenichi Maeda
IPC分类号： F02D45/00 , G01M15/11 , G01M15/00
CPC分类号： G01M15/11
摘要： A misfire detecting system for an internal combustion engine, including an intake pipe internal pressure detecting device for detecting an internal pressure of an intake pipe of the internal combustion engine, and a misfire detection inhibiting device for inhibiting the detection of misfire when the internal pressure of the intake pipe detected by the intake pipe internal pressure detecting device is lower than an intake pipe internal pressure in a no-load condition.
摘要翻译：一种用于内燃机的失火检测系统，包括用于检测内燃机的进气管的内部压力的进气管内压检测装置和用于在内燃机的内部压力下禁止检测到失火的失火检测禁止装置由进气管内压检测装置检测到的进气管在空载状态下低于进气管内压。

4. 发明授权

US5226394A Misfire-detecting system for internal combustion engines 失效
标题翻译：内燃机失火检测系统
公开(公告)号：US5226394A
公开(公告)日：1993-07-13
申请号：US967927
申请日：1992-10-28
申请人： Yuuichi Shimasaki , Masataka Chikamatsu , Takuji Ishioka , Shigetaka Kuroda , Hideaki Arai , Masaki Kanehiro , Takashi Hisaki , Shigeru Maruyama
发明人： Yuuichi Shimasaki , Masataka Chikamatsu , Takuji Ishioka , Shigetaka Kuroda , Hideaki Arai , Masaki Kanehiro , Takashi Hisaki , Shigeru Maruyama
IPC分类号： F02P17/12
CPC分类号： F02P17/12 , F02P2017/121 , F02P2017/125
摘要： A misfire-detecting system for an internal combustion engine detects a value of sparking voltage generated after generation of an ignition command signal, compares the detected value of sparking voltage with a predetermined voltage value, and determines whether or not a misfire has occurred in the engine, based upon results of the comparison. The determination as to occurrence of the misfire is effected, based upon results of the comparison between the detected value of the sparking voltage and the predetermined voltage value, obtained within a previously set limited comparison period.
摘要翻译：用于内燃机的失火检测系统检测在产生点火指令信号之后产生的火花电压值，将检测到的火花电压值与预定电压值进行比较，并确定发动机是否发生失火，基于比较结果。基于在先前设定的限制比较周期内获得的火花电压的检测值与预定电压值之间的比较结果，进行关于发生失火的确定。

5. 发明授权

US5327090A Misfire-detecting system for an internal combustion engine which detects a misfire due to the fuel supply system 失效
标题翻译：用于内燃机的失火检测系统，其检测由燃料供应系统引起的失火
公开(公告)号：US5327090A
公开(公告)日：1994-07-05
申请号：US93036
申请日：1993-07-19
申请人： Yuuichi Shimasaki , Masaki Kanehiro , Takuji Ishioka , Takashi Hisaki , Shigeru Maruyama , Shigetaka Kuroda , Masataka Chikamatsu , Hideaki Arai
发明人： Yuuichi Shimasaki , Masaki Kanehiro , Takuji Ishioka , Takashi Hisaki , Shigeru Maruyama , Shigetaka Kuroda , Masataka Chikamatsu , Hideaki Arai
IPC分类号： F02D45/00 , F02P17/00 , F02P17/12 , G01M15/00 , G01M15/04
CPC分类号： F02P17/12 , F02P2017/125
摘要： A misfire-detecting system for an internal combustion engine detects a value of the sparking voltage generated by the igniting device after generation of the ignition command signal, determines the duration of a discharge of a spark plug, based upon the detected sparking voltage, and determines whether or not a misfire has occurred in the engine, based upon the determined duration of the discharge. For example, the misfire-detecting system measures the duration of the discharge from the time of generation of the ignition command signal, based upon the detected sparking voltage, compares the measured duration of the discharge with a predetermined time period. When the measured duration is shorter than the predetermined time period, it is determined that a misfire has occurred in the engine.
摘要翻译：用于内燃机的失火检测系统在产生点火指令信号之后检测点火装置产生的火花电压的值，基于检测到的火花点电压确定火花塞放电的持续时间，并确定基于所确定的放电持续时间，发动机中是否发生失火。例如，失火检测系统基于检测到的点火电压来测量从产生点火指令信号的时间起的放电持续时间，将所测量的放电持续时间与预定时间段进行比较。当测量的持续时间短于预定时间段时，确定发动机中已经发生失火。

6. 发明授权

US5379634A Misfire-detecting system for internal combustion engines 失效
标题翻译：内燃机失火检测系统
公开(公告)号：US5379634A
公开(公告)日：1995-01-10
申请号：US912405
申请日：1992-07-13
申请人： Shigetaka Kuroda , Kazutomo Sawamura , Yuuichi Shimasaki , Masaki Kanehiro , Takuji Ishioka , Shigeru Maruyama , Yoichi Nishimura , Akira Katoh
发明人： Shigetaka Kuroda , Kazutomo Sawamura , Yuuichi Shimasaki , Masaki Kanehiro , Takuji Ishioka , Shigeru Maruyama , Yoichi Nishimura , Akira Katoh
IPC分类号： G01M15/11 , G01L15/00
CPC分类号： G01M15/11 , F02B2275/18 , F02D2041/1432 , F02D2200/1012 , F02D2200/1015 , F02D2200/502 , F02D41/022 , F02D41/0225 , F02D41/1498
摘要： A misfire-detecting system for an internal combustion engine having a plurality of cylinders. A rotational speed of the engine is detected and a rotational speed signal indicative of the detected rotational speed of the engine is output. The rotational speed signal is filtered. Occurrence of a misfire in the engine is determined based on the filtered rotational speed signal.
摘要翻译：一种用于具有多个气缸的内燃机的失火检测系统。检测发动机的转速，并输出表示发动机的检测转速的转速信号。转速信号被过滤。基于滤波的转速信号确定发动机失火的发生。

7. 发明授权

US5325664A System for determining deterioration of catalysts of internal combustion engines 失效
标题翻译：用于确定内燃机催化剂劣化的系统
公开(公告)号：US5325664A
公开(公告)日：1994-07-05
申请号：US961794
申请日：1992-10-16
申请人： Yasunari Seki , Toshihiko Sato , Katuhiro Kumagai , Hiroshi Maruyama , Yoichi Iwata , Tsuyoshi Takizawa , Kenichi Maeda , Shigetaka Kuroda , Masataka Chikamatsu , Shukoh Terata , Kazutomo Sawamura , Hajime Uto , Takuya Aoki , Makoto Kobayashi
发明人： Yasunari Seki , Toshihiko Sato , Katuhiro Kumagai , Hiroshi Maruyama , Yoichi Iwata , Tsuyoshi Takizawa , Kenichi Maeda , Shigetaka Kuroda , Masataka Chikamatsu , Shukoh Terata , Kazutomo Sawamura , Hajime Uto , Takuya Aoki , Makoto Kobayashi
IPC分类号： F01N11/00 , F01N13/02 , F02F3/26
CPC分类号： F01N11/002 , F01N11/007 , F01N13/009 , F01N2550/02 , F01N2900/0422 , Y02T10/47
摘要： A catalyst deterioration-determining system determines deterioration of a catalyst arranged in the exhaust passage of an internal combustion engine. An ECU is responsive to an output from an O.sub.2 sensor arranged upstream of the catalyst or outputs from O.sub.2 sensors arranged upstream and downstream of the catalyst for controlling the air-fuel ratio of a mixture supplied to the engine by means of an air-fuel ratio correction value (first air-fuel ratio control). When the engine is in a predetermined operating condition, the system effects changeover from the first air-fuel ratio control to a second air-fuel ratio control which is responsive to the output from the downstream O.sub.2 sensor for controlling the air-fuel ratio of the mixture by means of the air-fuel ratio correction value. After the changeover has been effected, a time period is measured which elapses from the time the second air-fuel ratio control causes a change in the air-fuel ratio correction value from a richer side to a leaner side or vice versa with respect to a stoichiometric air-fuel ratio to the time the output from the downstream O.sub.2 sensor is inverted from the richer side to the leaner side or vice versa with respect to the stoichiometric air-fuel ratio. It is determined that the catalyst is deteriorated, when the measured time period is shorter than the predetermined time period.
摘要翻译：催化剂劣化确定系统确定布置在内燃机的排气通道中的催化剂的劣化。 ECU响应于设置在催化剂上游的O 2传感器的输出或者从设置在催化剂上游和下游的O2传感器输出，用于通过空燃比控制供给发动机的混合物的空燃比校正值（第一空燃比控制）。当发动机处于预定的运行状态时，该系统实现从第一空燃比控制切换到第二空燃比控制，第二空燃比控制响应于来自下游O2传感器的输出，用于控制发动机的空燃比通过空燃比校正值进行混合。在切换已经实现之后，测量从第二空燃比控制引起空燃比校正值从更丰富侧到更瘦侧的变化时间经过的时间段，反之亦然化学计量空燃比与下游O2传感器的输出相对于化学计量空燃比从更丰富的一侧反转到更稀的侧，反之亦然。当测量的时间段短于预定时间段时，确定催化剂劣化。

8. 发明授权

US5415035A Combustion state-detecting system for internal combustion engines 失效
标题翻译：内燃机燃烧状态检测系统
公开(公告)号：US5415035A
公开(公告)日：1995-05-16
申请号：US118679
申请日：1993-09-10
申请人： Yuichi Shimasaki , Kazutomo Sawamura , Kenichi Maeda , Shigetaka Kuroda
发明人： Yuichi Shimasaki , Kazutomo Sawamura , Kenichi Maeda , Shigetaka Kuroda
IPC分类号： F02D45/00 , F02B75/02 , G01M15/11 , G01M15/00
CPC分类号： G01M15/11 , F02B2075/027
摘要： A combustion state-detecting system, for internal combustion engines, has a crank angle sensor. The crank angle sensor generates a crank angle signal with a predetermined period shorter than a firing period of the engine whenever the crankshaft rotates through a predetermined angle. A value of the rotational speed of the engine is detected whenever the crank angle signal is generated. A first average value of the detected engine rotational speed is calculated over a period of one rotation of the crankshaft, followed by calculating a second average value of the first average value over every firing period, to thereby calculate a rate of variation in the second average value over every firing period. The rate of variation is compared with a predetermined value, to determine whether or not the engine is in a degraded state of combustion.
摘要翻译：用于内燃机的燃烧状态检测系统具有曲柄角传感器。每当曲轴旋转预定角度时，曲轴转角传感器产生比发动机的燃起时间短的预定时间段的曲轴转角信号。每当产生曲轴转角信号时，检测发动机转速的值。在曲轴的一次旋转的周期内计算检测到的发动机转速的第一平均值，然后计算每个点火期间的第一平均值的第二平均值，从而计算第二平均值的变化率每个发射期间的价值。将变化率与预定值进行比较，以确定发动机是否处于劣化的燃烧状态。

9. 发明授权

US5373732A Combustion state-detecting system for internal combustion engines 失效
标题翻译：内燃机燃烧状态检测系统
公开(公告)号：US5373732A
公开(公告)日：1994-12-20
申请号：US149921
申请日：1993-11-10
申请人： Shigetaka Kuroda , Kazutomo Sawamura , Kenichi Maeda , Yuichi Shimasaki
发明人： Shigetaka Kuroda , Kazutomo Sawamura , Kenichi Maeda , Yuichi Shimasaki
IPC分类号： F02D45/00 , G01M15/11 , G01M15/00
CPC分类号： G01M15/11
摘要： A combustion state-detecting system for an internal combustion engine calculates a first average speed by averaging the rotational speed of the engine over a time period corresponding to duration of one stroke of a cylinder, and a second average speed by averaging the rotational speed of the engine over a time period corresponding to duration of one cycle of all strokes of the cylinder. The system calculates a difference between the first average speed and the second average speed, and determines based on the difference whether or not the combustion state of the engine is abnormal.
摘要翻译：用于内燃机的燃烧状态检测系统通过在对应于气缸的一个行程的持续时间的时间段内对发动机的转速进行平均来计算第一平均速度，并且通过对发动机的转速进行平均来平均第二平均速度发动机在对应于气缸的所有冲程的一个循环的持续时间的时间段内。系统计算第一平均速度和第二平均速度之差，并且基于发动机的燃烧状态是否异常的差来确定。

10. 发明授权

US5070847A Method of detecting abnormality in fuel supply systems of internal combustion engines 失效
标题翻译：检测内燃机燃油供应系统异常的方法
公开(公告)号：US5070847A
公开(公告)日：1991-12-10
申请号：US649026
申请日：1991-02-01
申请人： Eitetsu Akiyama , Toshikazu Oketani , Shigetaka Kuroda
发明人： Eitetsu Akiyama , Toshikazu Oketani , Shigetaka Kuroda
IPC分类号： F02B75/02 , F02D41/14 , F02D41/22 , F02D45/00
CPC分类号： F02D41/1495 , F02D41/1443 , F02D41/2454 , F02B2075/027 , F02D41/2483
摘要： A method of detecting abnormality in a fuel supply system of an internal combustion engine. An amount of fuel supplied to the engine is controlled in a feedback manner based on an air-fuel ratio correction coefficient set in response to an output signal from at least one exhaust gas component concentration sensor. The method comprises the steps of (1) calculating an abnormality determination value based on the air-fuel ratio correction coefficient, (2) calculating a learned average value of the air-fuel ratio correction coefficient, (3) renewing the abnormality determination value when the calculated learned average value of the air-fuel ratio correction coefficient falls outside a first predetermined range defined based upon the abnormality determination coefficient, and (4) determining that the fuel supply system is abnormal when the renewed value of the abnormality determination value falls outside a second predetermined range defined by predetermined upper and lower limit values.
摘要翻译：一种检测内燃机的燃料供给系统的异常的方法。基于响应于来自至少一个废气分量浓度传感器的输出信号而设定的空燃比校正系数，以反馈方式控制供给发动机的燃料量。该方法包括以下步骤：（1）基于空燃比校正系数计算异常判定值，（2）计算空燃比校正系数的学习平均值，（3）更新异常判定值，计算出的空燃比校正系数的求出平均值落在基于异常判定系数所定义的第一预定范围之外，（4）当异常判定值的更新值落在外部时，判定燃料供给系统异常由预定的上限和下限值限定的第二预定范围。

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