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1. 发明授权

US5396873A Evaporative fuel-processing system for internal combustion engines 失效
标题翻译：内燃机蒸发燃料处理系统
公开(公告)号：US5396873A
公开(公告)日：1995-03-14
申请号：US168383
申请日：1993-12-17
申请人： Masayoshi Yamanaka , Hiroshi Maruyama , Masataka Chikamatsu , Yasunari Seki , Kenichi Maeda , Kazutomo Sawamura
发明人： Masayoshi Yamanaka , Hiroshi Maruyama , Masataka Chikamatsu , Yasunari Seki , Kenichi Maeda , Kazutomo Sawamura
IPC分类号： F02D41/00 , F02M25/08 , F02M33/02
CPC分类号： F02M25/0809
摘要： An evaporative fuel-processing system includes a first control valve arranged in a charging passage connecting between a fuel tank and a canister for adsorbing evaporative fuel generated from the fuel tank, a second control valve arranged in a purging passage connecting between the canister and an intake passage of the engine, a third control valve arranged in an air inlet port of the canister, and a system internal pressure sensor for detecting pressure within the system. The system is checked for a leak by monitoring a value of the pressure detected by the sensor after the system is negatively pressurized by closing the third control valve and opening the second control valve. The sensor is provided at a location upstream of the first control valve, and the first control valve is closed to detect a value of the pressure or a change thereof. Abnormality determination is carried out based on the detected value of the pressure. Alternatively, all of the above valves are closed in the negatively-pressurized state of the system to detect a first amount of change in the pressure, and then the first control valve alone is opened to detect a second amount of change in the pressure. Abnormality determination can be carried out based on the first and second amounts of change in the pressure, or by comparing a value of the pressure detected when the first and second valves are closed after negative pressurization with a value of the pressure detected after the first control valve is opened.
摘要翻译：蒸发燃料处理系统包括：第一控制阀，其布置在连接在燃料箱和用于吸附从燃料箱产生的蒸发燃料的罐之间的充电通道中的第二控制阀;布置在连接在罐和进气口之间的清洗通道中的第二控制阀发动机通过，布置在罐的进气口中的第三控制阀，以及用于检测系统内的压力的系统内部压力传感器。通过关闭第三控制阀并打开第二控制阀，通过监视系统负压后由传感器检测到的压力值，来检查系统的泄漏。传感器设置在第一控制阀的上游位置，第一控制阀关闭以检测压力值或其变化。基于检测到的压力值进行异常判定。或者，所有上述阀在系统的负压状态下关闭，以检测第一压力变化量，然后单独打开第一控制阀以检测第二压力变化量。可以基于第一和第二压力变化量进行异常判定，或者通过将在第一和第二控制之后检测到的压力值与负压之后的第一和第二阀关闭时的压力值进行比较阀打开。

2. 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。

3. 发明授权

US5450834A Evaporative fuel-processing system for internal combustion engines 失效
标题翻译：内燃机蒸发燃料处理系统
公开(公告)号：US5450834A
公开(公告)日：1995-09-19
申请号：US212572
申请日：1994-03-16
申请人： Masayoshi Yamanaka , Kazutomo Sawamura , Hiroshi Maruyama , Kenichi Maeda
发明人： Masayoshi Yamanaka , Kazutomo Sawamura , Hiroshi Maruyama , Kenichi Maeda
IPC分类号： F02M25/08 , F02M33/02
CPC分类号： F02M25/0818 , F02M25/0809
摘要： An evaporative fuel-processing system for an internal combustion engine includes an evaporative emission control system having a fuel tank, a canister, a passage extending from the canister to an intake passage of the engine, and a purge control valve arranged across the passage, and a pressurization device for pressurizing the interior of the evaporative emission control system. An ECU actuates the pressurization device to bring the evaporative emission control system into a positively pressurized state, after the purge control valve and an open-to-atmosphere control valve arranged across a passage connected to the canister are closed, and detects an amount of evaporative fuel generated in the fuel tank. The ECU determines whether or not a leakage occurs from the evaporative emission control system, based on a rate of variation in pressure within the evaporative emission control system, and a reference value which is determined based on the amount of evaporative fuel detected.
摘要翻译：用于内燃机的蒸发燃料处理系统包括具有燃料箱，罐，从罐延伸到发动机的进气通道的通道的蒸发排放控制系统，以及布置在通道上的清洗控制阀，以及用于对蒸发排放控制系统的内部加压的加压装置。在清洗控制阀和布置在与罐连接的通道上的开放到大气的控制阀关闭之后，ECU致动加压装置以使蒸发排放控制系统处于正压状态，并且检测蒸发量在燃料箱中产生的燃料。 ECU基于蒸发排放控制系统内的压力变化率和基于检测到的蒸发燃料量确定的参考值，确定是否从蒸发排放控制系统发生泄漏。

4. 发明授权

US5241937A 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：US5241937A
公开(公告)日：1993-09-07
申请号：US986947
申请日：1992-12-08
申请人： Masaki Kanehiro , Yuichi Shimasaki , Takuji Ishioka , Shigeki Baba , Takashi Hisaki , Shigeru Maruyama , Masataka Chikamatsu , Shukoh Terata , Kazuhito Kakimoto , Kenichi Maeda , Kazutomo Sawamura , Eitetsu Akiyama
发明人： Masaki Kanehiro , Yuichi Shimasaki , Takuji Ishioka , Shigeki Baba , Takashi Hisaki , Shigeru Maruyama , Masataka Chikamatsu , Shukoh Terata , Kazuhito Kakimoto , Kenichi Maeda , Kazutomo Sawamura , Eitetsu Akiyama
IPC分类号： F02P17/12
CPC分类号： F02P17/12 , F02P2017/125 , F02P2017/128
摘要： A misfire-detecting system detects a misfire occurring in an internal combustion engine. A value of sparking voltage for discharging a spark plug of the engine is detected. The detected value of the sparking voltage is compared with a first predetermined value. A degree to which the detected value of the sparking voltage exceeds the first predetermined value is measured. The measured degree is compared with a second predetermined value. It is determined based upon results of the latter comparison whether or not a misfire occurred in the engine. According to a first aspect of the invention, the second predetermined reference value is set based upon detected values of operating parameters of the engine. According to a second aspect of the invention, the determination of occurrence of a misfire is inhibited when the engine is in a predetermined operating condition.
摘要翻译：失火检测系统检测内燃机中发生的失火。检测用于排放发动机的火花塞的火花电压的值。将检测到的火花电压的值与第一预定值进行比较。测量火花电压的检测值超过第一预定值的程度。将测量度与第二预定值进行比较。基于后一比较的结果确定发动机中是否发生失火。根据本发明的第一方面，基于发动机的操作参数的检测值来设定第二预定参考值。根据本发明的第二方面，当发动机处于预定操作状态时，禁止发生失火的确定。

5. 发明授权

US5390537A 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：US5390537A
公开(公告)日：1995-02-21
申请号：US149913
申请日：1993-11-10
申请人： Shigetaka Kuroda , Kenichi Maeda , Kazutomo Sawamura , Hiroshi Maruyama
发明人： Shigetaka Kuroda , Kenichi Maeda , Kazutomo Sawamura , Hiroshi Maruyama
IPC分类号： F02D45/00 , G01M15/11 , G01M15/00
CPC分类号： G01M15/11
摘要： A combustion state-detecting system for internal combustion engines has a crank angle sensor which generates a crank angle signal with a predetermined period shorter than a firing period of the spark plug 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 rate of variation in the detected value of the rotational speed of the engine is calculated over the firing period of the spark plug, and an average value thereof is then calculated. The calculated average value of the variation rate is compared with the calculated variation rate, and a cumulative value of a difference between the calculated variation rate average value and the calculated variation rate is calculated when the calculated variation rate is on the larger deceleration side of the engine rotational speed with respect to the calculated variation rate average value. The calculated difference cumulative value is compared with a predetermined value to determine whether or not the engine is in a degraded combustion state, based on the comparison result.
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，其产生比火花塞的燃烧时间短的预定时段的曲柄角信号。每当产生曲轴转角信号时，检测发动机转速的值。在火花塞的点火期间计算发动机的转速的检测值的变化率，然后计算其平均值。将所计算的变化率的平均值与计算出的变化率进行比较，计算出的变化率平均值与计算出的变化率之差的累计值，在计算出的变化率在发动机转速相对于计算的变化率平均值。将计算的差分累计值与预定值进行比较，以基于比较结果来确定发动机是否处于劣化燃烧状态。

6. 发明授权

US5418461A Device for detecting abnormality of spark plugs for internal combustion engines and a misfire-detecting system incorporating the same 失效
标题翻译：用于检测用于内燃机的火花塞的异常的装置和包含该火花塞的失火检测系统的装置
公开(公告)号：US5418461A
公开(公告)日：1995-05-23
申请号：US51704
申请日：1993-04-26
申请人： Kenichi Maeda , Yuichi Shimasaki , Eitetsu Akiyama , Takashi Hisaki , Shigeru Maruyama , Masaki Kanehiro , Takuji Ishioka , Kazutomo Sawamura
发明人： Kenichi Maeda , Yuichi Shimasaki , Eitetsu Akiyama , Takashi Hisaki , Shigeru Maruyama , Masaki Kanehiro , Takuji Ishioka , Kazutomo Sawamura
IPC分类号： F02D45/00 , F02P17/00 , F02P17/12 , G01M15/00
CPC分类号： F02P17/12 , F02P2017/125 , F02P2017/128
摘要： A device according to an aspect of the invention detects abnormality of spark plugs of an internal combustion engine. A value related to electric resistance across a gap between electrodes of each spark plug is measured. Next, it is determined whether or not the measured value, related to the electric resistance, assumes a value indicating that the electric resistance is below a predetermined value, when the engine is determined to be in a non-combustive state. The spark plug is determined to be abnormal when it is determined that the measured value, related to the electric resistance, assumes the value indicating that the electric resistance is below the predetermined value. A misfire-detecting system according to another aspect of the invention incorporates the above device.
摘要翻译：根据本发明的一个方面的装置检测内燃机的火花塞的异常。测量与每个火花塞的电极之间的间隙上的电阻有关的值。接下来，当确定发动机处于非燃烧状态时，确定与电阻相关的测量值是否表示电阻低于预定值的值。当确定与电阻相关的测量值为表示电阻低于预定值的值时，火花塞被确定为异常。根据本发明的另一方面的失火检测系统结合了上述装置。

7. 发明授权

US5365905A 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：US5365905A
公开(公告)日：1994-11-22
申请号：US27492
申请日：1993-03-05
申请人： Masaki Kanehiro , Yuichi Shimasaki , Takuji Ishioka , Shigeru Maruyama , Shigeki Baba , Takashi Hisaki , Kenichi Maeda , Kazutomo Sawamura , Jiro Takagi , Shukoh Terata
发明人： Masaki Kanehiro , Yuichi Shimasaki , Takuji Ishioka , Shigeru Maruyama , Shigeki Baba , Takashi Hisaki , Kenichi Maeda , Kazutomo Sawamura , Jiro Takagi , Shukoh Terata
IPC分类号： F02P17/12 , F02P17/00
CPC分类号： F02P17/12 , F02P2017/006 , F02P2017/125
摘要： A misfire-detecting system for an internal combustion engine in which a value of sparking voltage is detected, which is generated across a spare plug when high voltage is generated by an ignition device in response to generation of an ignition command signal. When a time period over which the detected value of sparking voltage exceeds a predetermined reference voltage value exceeds a predetermined time period value, the system determines that a misfire has occurred in the engine. A recharging command signal is generated for applying high voltage to the spark plug, after generation of the ignition command signal. As a result, a misfire can be accurately detected.
摘要翻译：一种用于内燃机的失火检测系统，其中当响应于点火指令信号的产生，当通过点火装置产生高电压时，检测到在备用插头上产生的火花电压值。当火花电压的检测值超过预定参考电压值的时间段超过预定时间段值时，系统确定发动机中已经发生失火。在产生点火指令信号之后，产生用于向火花塞施加高电压的再充电指令信号。结果，可以准确地检测到失火。

8. 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。

9. 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。

10. 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。

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