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公开(公告)号：US6041761A
公开(公告)日：2000-03-28
申请号：US85884
申请日：1998-05-27
Applicant: Hajime Uto , Toshiaki Ichitani , Yoshio Nuiya
Inventor： Hajime Uto , Toshiaki Ichitani , Yoshio Nuiya
CPC classification number: F02D41/0032 , F02M25/08
Abstract: An evaporative emission control system for an internal combustion engine includes of an evaporative fuel passage extending between the fuel tank and the intake system of the engine, and a control valve arranged across the evaporative fuel passage for opening and closing the evaporative fuel passage. The opening of the control valve is controlled such that the interior of the fuel tank is under negative pressure during operation and stoppage of the engine. The opening of the control valve is set to a desired value according to operating conditions of the engine.
Abstract translation: 用于内燃机的蒸发排放控制系统包括在燃料箱和发动机的进气系统之间延伸的蒸发燃料通道，以及布置在蒸发燃料通道两侧的用于打开和关闭蒸发燃料通道的控制阀。 控制阀的打开被控制为使得在运行和停止发动机期间燃料箱的内部处于负压。 根据发动机的运行条件将控制阀的开度设定为所需值。
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公开(公告)号：US5918581A
公开(公告)日：1999-07-06
申请号：US21004
申请日：1998-02-09
Applicant: Hajime Uto , Toshiaki Ichitani , Ryuji Fujino , Yoshio Nuiya , Takeshi Suzuki
Inventor： Hajime Uto , Toshiaki Ichitani , Ryuji Fujino , Yoshio Nuiya , Takeshi Suzuki
CPC classification number: F02M25/08
Abstract: An evaporative emission control system for an internal combustion engine includes an evaporative fuel passage extending between the intake system and the fuel tank of the engine. A control valve is arranged across the evaporative fuel passage, for opening and closing the evaporative fuel passage. The opening of the control valve is controlled such that the interior of the fuel tank is under negative pressure during operation and stoppage of the engine.
Abstract translation: 用于内燃机的蒸发排放控制系统包括在进气系统和发动机的燃料箱之间延伸的蒸发燃料通道。 在蒸发燃料通道两侧布置有用于打开和关闭蒸发燃料通道的控制阀。 控制阀的打开被控制为使得在运行和停止发动机期间燃料箱的内部处于负压。
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公开(公告)号：US6053036A
公开(公告)日：2000-04-25
申请号：US111199
申请日：1998-07-07
Applicant: Hajime Uto , Toshiaki Ichitani
Inventor： Hajime Uto , Toshiaki Ichitani
CPC classification number: F02D41/0042 , F02M25/08
Abstract: An fuel supply amount control system for an internal combustion engine comprises an evaporative fuel passage extending between the fuel tank and the intake system of the engine, and a control valve arranged across the evaporative fuel passage, for opening and closing the evaporative fuel passage. A pressure sensor detects pressure within the fuel tank. The opening of the control valve is controlled such that the interior of the fuel tank is held under negative pressure. After termination of negative pressurization of the fuel tank, the amount of fuel supplied to the engine is increased according to an amount of increase in the pressure within the fuel tank detected by the pressure sensor.
Abstract translation: 用于内燃机的燃料供应量控制系统包括在燃料箱和发动机的进气系统之间延伸的蒸发燃料通道，以及布置在蒸发燃料通道两侧的用于打开和关闭蒸发燃料通道的控制阀。 压力传感器检测燃油箱内的压力。 控制阀的开度被控制成使得燃料箱的内部保持在负压下。 在燃料箱的负压终止之后，根据由压力传感器检测到的燃料箱内的压力的增加量，提供给发动机的燃料量增加。
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4.发明授权
公开(公告)号：US5886625A
公开(公告)日：1999-03-23
申请号：US26543
申请日：1998-02-19
Applicant: Hajime Uto , Toshiaki Ichitani
Inventor： Hajime Uto , Toshiaki Ichitani
IPC: B60R16/02 , B60R16/023 , B60Q1/00
CPC classification number: B60R16/0232
Abstract: A residual fuel amount-estimating system for a fuel tank of an internal combustion engine installed in a vehicle. A pressure sensor detects the pressure within the fuel tank. The interior of the fuel tank is negatively pressurized, and a rate of change in the pressure within the fuel tank during negative pressurization is detected. A residual fuel amount within the fuel tank is estimated, based on the detected rate of change in the pressure within the fuel tank.
Abstract translation: 一种用于安装在车辆中的内燃机的燃料箱的剩余燃料量估算系统。 压力传感器检测燃油箱内的压力。 燃料箱的内部被负压，并且检测在负压增压期间燃料箱内的压力变化率。 基于检测到的燃料箱内的压力变化率，估计燃料箱内的剩余燃料量。
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Patent Agency Ranking5.发明授权
公开(公告)号：US5852929A
公开(公告)日：1998-12-29
申请号：US677315
申请日：1996-07-02
Applicant: Hiroaki Kato , Yuichi Shimasaki , Takashi Komatsuda , Takuya Aoki , Hiroaki Muramatsu , Hajime Uto , Toshiaki Ichitani
Inventor： Hiroaki Kato , Yuichi Shimasaki , Takashi Komatsuda , Takuya Aoki , Hiroaki Muramatsu , Hajime Uto , Toshiaki Ichitani
CPC classification number: F02D41/221 , F01N11/00 , F01N13/0097 , F01N3/32 , F02B77/08 , F01N2550/14 , Y02T10/20 , Y02T10/47
Abstract: A failure detection system detects a failure occurring in an exhaust secondary air supply system of an internal combustion engine, and has a catalytic converter installed in an exhaust pipe of an exhaust system of the engine for reducing pollutants from exhaust gases emitted from the engine, a conduit connected, at one end, to the exhaust pipe at a location upstream of the catalytic converter and an air pump connected to an opposite end of the conduit for supplying compressed air in the conduit. The conduit is closed by the a valve which opens in response to the negative pressure and a second valve which opens in response to the conduit pressure. In the system a first prescribed level and the second prescribed level are set and two pressure switches are provided for generating output at the levels. A failure occurring in the air pump and the valve is detected based on operation of the air pump and the output of the pressure detectors. Alternatively, the failure is detected by changing the timing of the termination of the air pump and closing of the second valve while using one switch and the second prescribed level. The system is simple in configuration.
Abstract translation: 故障检测系统检测在内燃机的排气二次空气供给系统中发生的故障，并且具有安装在发动机的排气系统的排气管中的催化转化器，用于减少从发动机排出的废气中的污染物， 导管在一端连接到催化转化器上游位置处的排气管，以及连接到导管的相对端的空气泵，用于在管道中供应压缩空气。 导管由响应于负压而打开的阀闭合，并且响应于导管压力而打开的第二阀闭合。 在系统中，设定第一规定级别和第二规定级别，并且提供两个压力开关用于在电平上产生输出。 基于气泵的操作和压力检测器的输出，检测出气泵和阀门发生的故障。 或者，通过在使用一个开关和第二规定水平时改变气泵的终止和第二阀的闭合的定时来检测故障。 该系统配置简单。
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6.发明授权
公开(公告)号：US5427076A
公开(公告)日：1995-06-27
申请号：US326957
申请日：1994-10-21
Applicant: Makoto Kobayashi , Hajime Uto , Takeshi Suzuki
Inventor： Makoto Kobayashi , Hajime Uto , Takeshi Suzuki
CPC classification number: F02M25/0854 , F02M25/0836
Abstract: An evaporative fuel-processing system for an internal combustion engine for a vehicle includes an evaporative fuel-guiding port for guiding evaporative fuel generated from the fuel tank, an adsorbent for adsorbing the evaporative fuel guided from the evaporative fuel-guiding port, an evaporative fuel-discharging port for discharging the evaporative fuel desorbed from the adsorbent, and an air-introducing port for introducing air. The system comprises a first passage for allowing the air-introducing port to communicate with the chassis side frame of the vehicle, and a second passage for allowing the air-introducing port to communicate with the engine room of the vehicle. A first one-way valve is arranged across the first passage, for allowing a flow from the chassis side frame of the vehicle to the air-introducing port, and a second one-way valve means is arranged across the second passage, for allowing a flow from the air-introducing port to the engine room of the vehicle.
Abstract translation: 一种用于车辆内燃机的蒸发燃料处理系统包括用于引导从燃料箱产生的蒸发燃料的蒸发燃料引导口，用于吸附从蒸发燃料引导口引导的蒸发燃料的吸附剂，蒸发燃料 - 用于排出从吸附剂解吸的蒸发燃料的排出口，以及用于引入空气的空气引入口。 该系统包括用于允许空气引入口与车辆的底盘侧框架连通的第一通道和用于允许空气引入口与车辆的发动机室连通的第二通道。 第一单向阀布置成跨过第一通道，用于允许从车辆的底盘侧框架流到空气引入口，并且第二单向阀装置布置成跨过第二通道，以允许 从空气导入口流向车辆的发动机室。
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7.发明授权
公开(公告)号：US5325664A
公开(公告)日：1994-07-05
申请号：US961794
申请日：1992-10-16
Applicant: 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
Inventor： 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
CPC classification number: F01N11/002 , F01N11/007 , F01N13/009 , F01N2550/02 , F01N2900/0422 , Y02T10/47
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20130090839A1
公开(公告)日：2013-04-11
申请号：US13642113
申请日：2011-02-09
Applicant: Yoshiharu Ishigami , Hajime Uto , Jun Kato , Naoki Inoue , Kenji Tsukahara
Inventor： Yoshiharu Ishigami , Hajime Uto , Jun Kato , Naoki Inoue , Kenji Tsukahara
IPC: F02D41/00
CPC classification number: F02D41/0002 , F02D41/0005 , F02D41/0007 , F02D41/0055 , F02D2041/0017 , F02D2200/101 , F02D2200/1015 , F02D2200/602 , F02M26/06 , Y02T10/42 , Y02T10/47
Abstract: A control system for an internal combustion engine where when the engine is decelerating the amount of intake air supplied to a combustion chamber is controlled. A target auxiliary intake air amount SAIRCMD necessary for preventing misfiring of the engine by supplying only an auxiliary intake air amount to a combustion chamber and a target intake air amount GAIRCMD which is a target value of the amount of intake air supplied to the combustion chamber are calculated according to the state NE, AP of the engine. When the engine is decelerating, and misfires, misfire avoidance control is executed controlling an auxiliary intake air amount control valve to be more opened such that the auxiliary intake air amount becomes the target auxiliary intake air amount SAIRCMD and a throttle valve to be more closed such that the amount of intake air supplied to the combustion chamber becomes the target intake air amount GAIRCMD.
Abstract translation: 一种用于内燃机的控制系统，其中当发动机正在减速供应到燃烧室的进气量时。 目标辅助进气量SAIRCMD是通过仅向燃烧室供给辅助进气量而防止发动机发生故障的目标辅助进气量SAIRCMD和作为供给到燃烧室的进气量的目标值的目标进气量GAIRCMD 根据发动机的状态NE，AP计算。 当发动机减速并且发动不良时，执行失火回避控制，控制辅助进气量控制阀更加打开，使得辅助进气量成为目标辅助进气量SAIRCMD，并且节流阀更加关闭 供给到燃烧室的吸入空气量成为目标进气量GAIRCMD。
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公开(公告)号：US08949004B2
公开(公告)日：2015-02-03
申请号：US13642113
申请日：2011-02-09
Applicant: Yoshiharu Ishigami , Hajime Uto , Jun Kato , Naoki Inoue , Kenji Tsukahara
Inventor： Yoshiharu Ishigami , Hajime Uto , Jun Kato , Naoki Inoue , Kenji Tsukahara
CPC classification number: F02D41/0002 , F02D41/0005 , F02D41/0007 , F02D41/0055 , F02D2041/0017 , F02D2200/101 , F02D2200/1015 , F02D2200/602 , F02M26/06 , Y02T10/42 , Y02T10/47
Abstract: A control system for an internal combustion engine where when the engine is decelerating the amount of intake air supplied to a combustion chamber is controlled. A target auxiliary intake air amount SAIRCMD necessary for preventing misfiring of the engine by supplying only an auxiliary intake air amount to a combustion chamber and a target intake air amount GAIRCMD which is a target value of the amount of intake air supplied to the combustion chamber are calculated according to the state NE, AP of the engine. When the engine is decelerating, and misfires, misfire avoidance control is executed controlling an auxiliary intake air amount control valve to be more opened such that the auxiliary intake air amount becomes the target auxiliary intake air amount SAIRCMD and a throttle valve to be more closed such that the amount of intake air supplied to the combustion chamber becomes the target intake air amount GAIRCMD.
Abstract translation: 一种用于内燃机的控制系统，其中当发动机正在减速供应到燃烧室的进气量时。 目标辅助进气量SAIRCMD是通过仅向燃烧室供给辅助进气量而防止发动机发生故障的目标辅助进气量SAIRCMD和作为供给到燃烧室的进气量的目标值的目标进气量GAIRCMD 根据发动机的状态NE，AP计算。 当发动机减速并且发动不良时，执行失火回避控制，控制辅助进气量控制阀更加打开，使得辅助进气量成为目标辅助进气量SAIRCMD，并且节流阀更加关闭 供给到燃烧室的吸入空气量成为目标进气量GAIRCMD。
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