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31. 发明授权

US5195495A Evaporative fuel-purging control system for internal combustion engines 失效
标题翻译：内燃机蒸发式燃油净化控制系统
公开(公告)号：US5195495A
公开(公告)日：1993-03-23
申请号：US921158
申请日：1992-07-29
申请人： Masakazu Kitamoto , Fumio Hosoda , Hideo Moriwaki , Sachito Fujimoto
发明人： Masakazu Kitamoto , Fumio Hosoda , Hideo Moriwaki , Sachito Fujimoto
IPC分类号： F02D41/00 , F02M25/08
CPC分类号： F02D41/0045 , F02M25/08 , F02D41/0032 , F02M2025/0845
摘要： An evaporative fuel-purging control system for an internal combustion engine having a canister in which evaporative fuel from a fuel tank is adsorbed. One or more purging control valves are arranged across a purging pipe extending between the canister and an intake system. An ECU integrates an estimated value of a flow rate of evaporative fuel supplied to the engine, which is estimated as a purging flow rate in the purging pipe, in accordance with engine operating conditions when a specific one of the purging control valves is opened to thereby obtain an integrated purging flow rate value, and subtracts a predetermined decremental value from the integrated purging flow rate value when the specific one purging control valve is closed. When the integrated purging flow rate value is equal to or smaller than a predetermined lower limit value, the ECU decreases the flow rate of the evaporative fuel supplied to the intake system, based on the integrated purging flow rate value obtained above. When an air-fuel ratio correction coefficient value is equal to or greater than a predetermined value and at the same time the integrated purging flow rate value is equal to or greater than a predetermined value, the ECU increases the flow rate, based upon the integrated purging flow rate value.
摘要翻译：一种用于内燃机的蒸发燃料清除控制系统，其具有吸附来自燃料箱的蒸发燃料的罐。一个或多个清洗控制阀布置在在罐和进气系统之间延伸的吹扫管上。 ECU根据发动机的运转条件，将特定的排气控制阀打开时的发动机运转状态，估计为排气管内的净化流量的估计值，推定为发动机供给的蒸发燃料的流量的估计值获得积分净化流量值，并且当特定的一个净化控制阀关闭时从积分净化流量值减去预定的减量值。当积分净化流量值等于或小于预定下限值时，ECU基于上面获得的积分净化流量值来降低供给到进气系统的蒸发燃料的流量。当空燃比校正系数值等于或大于预定值，并且同时积分净化流量值等于或大于预定值时，ECU基于积分净化流量值。

32. 发明授权

US5036820A Method of determining activation of an exhaust gas concentration sensor equipped with a heater 失效
标题翻译：确定配备有加热器的排气浓度传感器的激活的方法
公开(公告)号：US5036820A
公开(公告)日：1991-08-06
申请号：US579304
申请日：1990-09-07
申请人： Sachito Fujimoto , Toshihiro Mibe , Takeshi Fukuzawa
发明人： Sachito Fujimoto , Toshihiro Mibe , Takeshi Fukuzawa
IPC分类号： G01N27/409 , F02D41/14 , F02D45/00 , G01N27/26 , G01N27/406
CPC分类号： G01N27/4065 , F02D41/148 , F02D41/1493 , F02D41/1494
摘要： An improved method of determining activation of an exhaust gas concentration sensor for detecting the concentration of an exhaust gas ingredient in exhaust gases from an internal combustion engine. The sensor comprises an exhaust gas ingredient-detecting element, and a heater for heating the element. An output signal from the sensor is used for air-fuel ratio feedback control of an air-fuel mixture supplied to the engine. It is determined that activation of the sensor has been completed when an output voltage from the sensor has become lower than a predetermined activation-determining reference voltage. The predetermined activation-determining reference voltage is changed depending on a time period over which the heater has been energized while the engine is in an operating condition under which the air-fuel ratio feedback control should be carried out.
摘要翻译：一种确定排气浓度传感器的激活的改进方法，用于检测来自内燃机的废气中的废气成分的浓度。传感器包括废气成分检测元件和用于加热元件的加热器。来自传感器的输出信号用于提供给发动机的空气 - 燃料混合物的空燃比反馈控制。当来自传感器的输出电压已经变得低于预定的启动确定参考电压时，确定传感器的激活已经完成。在发动机处于应进行空燃比反馈控制的运行状态下，根据加热器通电的时间段来改变预定的启动确定参考电压。

33. 发明授权

US4915081A Method of determining activation of exhaust gas ingredient-concentration sensors for internal combustion engines 失效
标题翻译：确定内燃机排气成分浓度传感器活化的方法
公开(公告)号：US4915081A
公开(公告)日：1990-04-10
申请号：US324221
申请日：1989-03-15
申请人： Sachito Fujimoto , Shunji Takahashi
发明人： Sachito Fujimoto , Shunji Takahashi
IPC分类号： F02D41/00 , F02D41/14
CPC分类号： F02D41/1475 , F02D41/1493
摘要： A method of determining the activation of an exhaust gas ingredient-concentration sensor for use in an internal combustion engine. The air-fuel ratio of a mixture is controlled in a feedback manner by the use of a coefficient varying with an output of the sensor during engine operation in an air-fuel ratio feedback control region. The activation of the sensor is determined based on the output of the sensor. When the engine has shifted from the air-fuel ratio feedback control region to a predetermined decelerating region, calculated is an average value of values of the coefficient obtained by the feedback control immediately before the shifting. The air-fuel ratio of the mixture is leaned by the use of the average value thus calculated. It is determined whether or not the sensor is activated when the air-fuel ratio has thus been leaned.
摘要翻译：一种确定用于内燃机的排气成分浓度传感器的活化的方法。混合物的空燃比通过在发动机运转中在空燃比反馈控制区域中使用随传感器的输出变化的系数以反馈方式进行控制。基于传感器的输出确定传感器的激活。当发动机已经从空燃比反馈控制区域转移到预定减速区域时，计算出通过紧接变速前的反馈控制获得的系数的值的平均值。混合物的空燃比利用这样计算的平均值倾斜。当空燃比因此倾斜时，确定传感器是否被激活。

34. 发明授权

US4898143A Exhaust gas recirculation control method for internal combustion engines 失效
标题翻译：内燃机排气再循环控制方法
公开(公告)号：US4898143A
公开(公告)日：1990-02-06
申请号：US317824
申请日：1989-03-01
申请人： Sachito Fujimoto , Takuya Sugino
发明人： Sachito Fujimoto , Takuya Sugino
IPC分类号： F02M25/07 , F02D21/08 , F02D41/00 , F02D41/06
CPC分类号： F02D41/005 , F02D41/06 , Y02T10/47
摘要： An exhaust gas circulation control method for an internal combustion engine in which an exhaust gas recirculating valve is arranged across an exhaust gas recirculating passage extending between the exhaust and intake passages. The opening of the valve is controlled in response to operating conditions of the engine. The exhaust gas circulation is inhibited when the engine load exceeds a predetermined value set in response to the engine temperature such that it is set to a smaller value as the engine temperature is lower.
摘要翻译：一种用于内燃机的废气循环控制方法，其中排气再循环阀跨越在排气和进气通道之间延伸的废气再循环通道。响应于发动机的操作条件来控制阀的打开。当发动机负载超过响应于发动机温度设定的预定值，使得当发动机温度较低时，排气循环被设定为较小值时，废气循环被禁止。

35. 发明授权

US5678523A 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：US5678523A
公开(公告)日：1997-10-21
申请号：US609744
申请日：1996-03-01
申请人： Akira Hashimoto , Hideo Moriwaki , Yoshiaki Matsuzono , Sachito Fujimoto , Satoshi Kiso
发明人： Akira Hashimoto , Hideo Moriwaki , Yoshiaki Matsuzono , Sachito Fujimoto , Satoshi Kiso
IPC分类号： F02M25/08 , F02M37/04
CPC分类号： F02M25/0809
摘要： An evaporative fuel-processing system for an internal combustion engine has an evaporative emission control system and a pressure sensor. An ECU carries out negative pressurization of the interior of the evaporative emission control system, by opening a purge control valve and closing a vent shut valve. The purge control valve is closed over a predetermined time period after the interior of the evaporative emission control system is brought into the predetermined negatively pressurized state, and a rate of decrease in negative pressure within the evaporative emission control system is detected. Then, it is determined whether or not there is leakage from the evaporative emission control system, based on the detected rate of decrease in the negative pressure, and at least one detected pressure value at at least one predetermined time point within the predetermined time period over which the purge control valve is closed.
摘要翻译：用于内燃机的蒸发燃料处理系统具有蒸发排放控制系统和压力传感器。 ECU通过打开清洗控制阀并关闭排气关闭阀，对蒸发排放控制系统的内部进行负压。在蒸发排放控制系统的内部进入预定的负压状态之后，在预定时间段内关闭净化控制阀，并且检测蒸发排放控制系统内的负压降低率。然后，基于检测到的负压下降的速度来确定是否存在来自蒸发排放控制系统的泄漏，以及在预定时间段内的至少一个预定时间点的至少一个检测压力值清洗控制阀关闭。

36. 发明授权

US5542393A Fuel injection amount control system for internal combustion engines 失效
标题翻译：内燃机燃油喷射量控制系统
公开(公告)号：US5542393A
公开(公告)日：1996-08-06
申请号：US334338
申请日：1994-11-02
申请人： Akira Katoh , Hiroshi Kitagawa , Shunichi Tsuzuki , Jun Takahashi , Sachito Fujimoto , Toshiaki Hirota
发明人： Akira Katoh , Hiroshi Kitagawa , Shunichi Tsuzuki , Jun Takahashi , Sachito Fujimoto , Toshiaki Hirota
IPC分类号： F02D41/04 , F02D41/32 , F02D41/00
CPC分类号： F02D41/047
摘要： A fuel injection amount control system for an internal combustion engine includes an ECU which calculates a desired amount of fuel to be supplied to each combustion chamber in response to operating conditions of the engine, and calculates values of parameters indicative of fuel adherence characteristics of the interior of the intake passage in response to operating conditions of the engine. The ECU further calculates a first fuel amount which is directly drawn into the combustion chamber from a fuel amount injected by the fuel injection valve, and a second amount of fuel which is carried off the wall surface of the intake passage due to evaporation and drawn into the combustion chamber, based upon the values of the parameters. The ECU calculates an injection amount of fuel to be injected, by correcting the desired fuel amount, based upon the first and second fuel amounts. When the engine is in a predetermined operating condition in which convergence of the fuel injection amount calculated by the ECU to the desired fuel amount can be unstable, the value of at least one of the parameters such that the fuel injection amount stably converges to the desired fuel amount.
摘要翻译：一种用于内燃机的燃料喷射量控制系统包括ECU，其响应于发动机的操作条件计算要供应到每个燃烧室的期望燃料量，并且计算指示内部燃料粘附特性的参数值的进气通道响应于发动机的操作条件。 ECU进一步计算从燃料喷射阀喷射的燃料量直接吸入到燃烧室中的第一燃料量，以及由于蒸发而被吸入进气道的壁面的第二量的燃料，并被吸入燃烧室，基于参数的值。 ECU通过基于第一和第二燃料量校正所需燃料量来计算要喷射的燃料的喷射量。当发动机处于由ECU计算的燃料喷射量的收敛到期望燃料量的预定操作状态可能不稳定时，至少一个参数的值使得燃料喷射量稳定地收敛到期望的燃料量。

37. 发明授权

US5216998A Evaporative fuel-purging control system for internal combustion engines 失效
标题翻译：内燃机蒸发式燃油净化控制系统
公开(公告)号：US5216998A
公开(公告)日：1993-06-08
申请号：US812722
申请日：1991-12-23
申请人： Fumio Hosoda , Sachito Fujimoto , Masakazu Kitamoto , Kazumi Yamazaki
发明人： Fumio Hosoda , Sachito Fujimoto , Masakazu Kitamoto , Kazumi Yamazaki
IPC分类号： F02D41/14 , F02D41/00 , F02M25/08
CPC分类号： F02D41/0032 , F02M25/08
摘要： An evaporative fuel-purging control system for an internal combustion engine having a canister in which evaporative fuel from a fuel tank is absorped. Purge control valves are arranged between the canister and the intake system of the engine for controlling the flow rate of evaporative fuel supplied from the canister to the intake system. An ECU is responsive to an output from an exhaust gas ingredient concentration sensor arranged in the exhaust system of the engine for calculating an air-fuel ratio correction coefficient, based upon the output from the exhaust gas ingredient concentration sensor and controlling the air-fuel ratio of a mixture supplied to the engine by the use of the air-fuel ratio correction coefficient. The ECU calculates an average value of the air-fuel ratio correction coefficient, and is responsive to the calculated average value for controlling the purge control valves.
摘要翻译：一种用于内燃机的蒸发燃料净化控制系统，其具有吸收来自燃料箱的蒸发燃料的罐。吹扫控制阀布置在发动机的罐和进气系统之间，用于控制从罐向进气系统供应的蒸发燃料的流量。 ECU根据排气成分浓度传感器的输出响应于发动机的排气系统中的输出，用于根据排气成分浓度传感器的输出计算空燃比校正系数，并控制空燃比通过使用空燃比校正系数提供给发动机的混合物。 ECU计算空燃比校正系数的平均值，并响应计算出的平均值来控制排气控制阀。

38. 发明授权

US5216995A Evaporative fuel-purging control system and air-fuel ratio control system associated therewith for internal combustion engines 失效
标题翻译：用于内燃机的蒸发式燃料清除控制系统和与之相关的空燃比控制系统
公开(公告)号：US5216995A
公开(公告)日：1993-06-08
申请号：US876982
申请日：1992-05-01
申请人： Fumio Hosoda , Sachito Fujimoto , Masashi Uchiyama , Toshikazu Oketani , Yoshiharu Abe , Kazumi Yamazaki , Teruo Wakashiro , Hideo Moriwaki
发明人： Fumio Hosoda , Sachito Fujimoto , Masashi Uchiyama , Toshikazu Oketani , Yoshiharu Abe , Kazumi Yamazaki , Teruo Wakashiro , Hideo Moriwaki
IPC分类号： F02D41/02 , F02D41/00 , F02D41/04 , F02D45/00 , F02M25/08
CPC分类号： F02D41/0045 , F02D41/0032 , F02D41/0042
摘要： A mass flowmeter outputs an output value indicative of the flow rate of a gaseous mixture containing evaporative fuel and being purged into the intake system of an internal combustion engine. A calculated value of the flow rate of the mixture is obtained based on a plurality of operating parameters of the engine. The actual flow rate of the mixture and/or the actual flow rate of the evaporative fuel are/is calculated based on the output value from the mass flowmeter and the calculated value based on the engine operating parameters. The concentration of the evaporative fuel is calculated from the calculated actual flow rates of the evaporative fuel and the mixture. The calculated actual flow rate is compared with a desired flow rate value, and a purge control valve is controlled based on results of the comparison. A basic amount of fuel supplied to the engine is corrected based on the calculated actual flow rate of the evaporative fuel.
摘要翻译：质量流量计输出表示含有蒸发燃料的气体混合物的流量并被清除到内燃机的进气系统中的输出值。基于发动机的多个操作参数获得混合物的流量的计算值。基于来自质量流量计的输出值和基于发动机运转参数的计算值计算混合物的实际流量和/或蒸发燃料的实际流量。蒸发燃料的浓度由计算出的蒸发燃料和混合物的实际流量计算。将计算出的实际流量与期望的流量值进行比较，并且基于比较的结果控制清洗控制阀。基于计算出的蒸发燃料的实际流量来校正供给发动机的基本燃料量。

39. 发明授权

US5178117A Evaporative fuel-purging control system for internal combustion engines 失效
标题翻译：内燃机蒸发式燃油净化控制系统
公开(公告)号：US5178117A
公开(公告)日：1993-01-12
申请号：US884690
申请日：1992-05-18
申请人： Sachito Fujimoto , Fumio Hosoda , Masakazu Kitamoto
发明人： Sachito Fujimoto , Fumio Hosoda , Masakazu Kitamoto
IPC分类号： F02M25/08
CPC分类号： F02M25/0809
摘要： An evaporative fuel-purging control system for an internal combustion engine comprises a mass flowmeter and a differential pressure type flowmeter arranged in a purging passage of the engine for measuring a flow rate of a mixture of evaporative fuel and air being purged. The flowmeters have different output characteristics relative to change in the concentration of evaporative fuel in the mixture from each other. Output values from the flowmeters are compared to obtain a difference or a ratio therebetween. Failure of at least one of the flowmeters is detected based upon the difference or the ratio.
摘要翻译：用于内燃机的蒸发式燃料净化控制系统包括：质量流量计和差压式流量计，其布置在发动机的净化通道中，用于测量蒸发燃料和被净化空气的混合物的流量。流量计相对于混合物中蒸发燃料的浓度的变化具有不同的输出特性。比较来自流量计的输出值以获得差值或它们之间的比率。基于差异或比例来检测至少一个流量计的故障。

40. 发明授权

US5065705A System for preventing overheat of engine for vehicle 失效
标题翻译：用于防止车辆发动机过热的系统
公开(公告)号：US5065705A
公开(公告)日：1991-11-19
申请号：US551980
申请日：1990-07-12
申请人： Sachito Fujimoto , Yuzuru Koike
发明人： Sachito Fujimoto , Yuzuru Koike
IPC分类号： F01P11/16 , F02B77/08 , F02D31/00 , F02D41/22 , F02D45/00 , F01P5/14
CPC分类号： F01P11/16 , F02B77/089 , F02D31/006 , F02D41/22 , F01P2025/08 , F02D2200/501 , Y02T10/40
摘要： A system for preventing overheating of an engine for a vehicle includes a revolution rate detector for detecting the rate of revolution of the engine carried on the vehicle, a device for reducing an engine power output in response to a value detected in the revolution rate detector exceeding a preset revolution rate, a device for predicting overheating of the engine, and a preset revolution rate correcting device for reducing the preset revolution rate in accordance with a reduction of the vehicle velocity in reply to prediction of an engine overheat condition by the overheat predicting device. An overheating due to an engine racing condition during vehicle travelling is prevented in view of an engine cooling effect provided by flowing air.
摘要翻译：一种用于防止车辆发动机过热的系统包括用于检测车辆所承载的发动机的转速的转速检测器，用于根据转速检测器中检测到的值来减小发动机功率输出的装置超过预设转速，用于预测发动机过热的装置，以及用于根据过热预测装置对发动机过热状态的预测，根据车速的降低而降低预设转速的预设转速校正装置。考虑到由流动的空气提供的发动机冷却效果，防止了由于在车辆行驶期间的发动机赛车状态而导致的过热。

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