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    Control apparatus for internal combustion engine
    1.
    发明授权
    Control apparatus for internal combustion engine 失效
    内燃机控制装置

    公开(公告)号：US07469685B2

    公开(公告)日：2008-12-30

    申请号：US11033404

    申请日：2005-01-12

    申请人： Akinori Osanai

    发明人： Akinori Osanai

    IPC分类号： F02M33/02 ,  F02D41/00

    CPC分类号： F02D41/1454 ,  F02D41/0032 ,  F02D41/023 ,  F02D41/047 ,  F02D41/06 ,  F02D41/10 ,  F02D41/1473

    摘要： The control apparatus for the internal combustion engine increases a fuel injection amount under predetermined conditions, such as after the start of the internal combustion engine, at cold time, at acceleration requiring time, at gear shifting time from a neutral to a D-range, for example. When the fuel injection amount is increased during execution of air/fuel ratio feedback control, the feedback control follows the increase amount, and executes correction corresponding to the increase amount. Then, at the point of time when the correction corresponding to the increase amount is completed, the increase of the fuel injection amount is stopped quickly. Thereby, the increase of the fuel injection amount is not continued unnecessarily, and therefore useless consumption of the fuel can be suppressed. Also, it becomes possible to start other controls early by finishing increase quickly. For example, when the canister purge is executed during the increase of the fuel injection amount, it is difficult to distinguish an evaporated fuel amount by purge and an increase amount by the fuel increase, and learning precision of a vapor concentration is lowered. Therefore, purge is not performed during the increase of the fuel injection amount, and the purge control is performed after the fuel increase is stopped quickly, whereby it becomes possible to start purge control early.

    摘要翻译： 内燃机的控制装置在冷启动时，在加速需要时间，从中性到D档的换档时间等的预定条件下，增加燃料喷射量， 例如。 当在执行空燃比反馈控制期间燃料喷射量增加时，反馈控制遵循增加量，并且执行对应于增加量的校正。 然后，在对应于增加量的校正完成的时间点，燃料喷射量的增加被快速停止。 因此，燃料喷射量的增加不会不必要地延续，因此能够抑制燃料的无用的消耗。 此外，通过快速增长可以提前启动其他控件。 例如，当在燃料喷射量的增加期间执行罐吹扫时，难以通过吹扫来区分蒸发的燃料量和通过燃料增加来增加增加量，并且蒸气浓度的学习精度降低。 因此，在燃料喷射量的增加期间不进行吹扫，并且在燃料增加快速停止之后进行吹扫控制，从而可以提前开始吹扫控制。

    Vaporized fuel purge system
    2.
    发明授权
    Vaporized fuel purge system 失效
    汽化燃料净化系统

    公开(公告)号：US07305978B2

    公开(公告)日：2007-12-11

    申请号：US11518308

    申请日：2006-09-11

    申请人： Akinori Osanai

    发明人： Akinori Osanai

    IPC分类号： F02M25/08 ,  F02D41/14

    CPC分类号： F02D41/0045 ,  F02D41/0042 ,  F02D41/1454 ,  F02M25/089

    摘要： A feedback correction coeficient used to perform feedback-control of the fuel injection amount based on the air-fuel ratio of exhaust gas is calculated. A concentration updating based value is set based on the deviation of the oscillation center of the feedback correction coefficiect, and a vapor concentration correction coefficient corresponding to the fuel concentration of purge gas is updated using the concentration updating base value. During the period where the fuel concentration of purge gas is expected to sharply decrease, the concentration updating base value is increased.

    摘要翻译： 计算用于基于排气的空燃比进行燃料喷射量的反馈控制的反馈校正系数。 基于反馈校正系数的振荡中心的偏差来设定基于浓度更新的值，并且使用浓度更新基值更新与吹扫气体的燃料浓度对应的蒸气浓度校正系数。 在预期吹扫气体的燃料浓度急剧下降的期间，浓度更新基值增加。

    Evaporative fuel treatment apparatus for internal combustion engine
    4.
    发明申请
    Evaporative fuel treatment apparatus for internal combustion engine 失效
    内燃机用蒸发燃料处理装置

    公开(公告)号：US20050056262A1

    公开(公告)日：2005-03-17

    申请号：US10935113

    申请日：2004-09-08

    申请人： Akinori Osanai

    发明人： Akinori Osanai

    IPC分类号： F02M25/08

    CPC分类号： F02M25/089

    摘要： A fuel tank is provided with an atmospheric air introduction hole so that the fuel tank communicates with the outside. As a result, the interior of the fuel tank is maintained at a pressure level between substantially atmospheric air pressure and positive pressure. A canister may be connected to the atmospheric air introduction hole. When an internal combustion engine starts up, the fuel tank communicates with an intake path. Internal combustion engine startup places the intake path under negative pressure. Under negative pressure, fuel vapor is supplied to the intake path from the fuel tank whose pressure level is between substantially atmospheric air pressure and positive pressure.

    摘要翻译： 燃料箱设有大气导入孔，使得燃料箱与外部连通。 结果，燃料箱的内部保持在基本上大气压和正压之间的压力水平。 罐可以连接到大气导入孔。 当内燃机启动时，燃料箱与进气道连通。 内燃机启动将进气通道置于负压下。 在负压下，燃料蒸汽从压力水平基本上为大气压和正压的燃料箱供给到进气通道。

    Evaporation fuel treating device for an internal combustion engine
    5.
    发明授权
    Evaporation fuel treating device for an internal combustion engine 失效
    内燃机用蒸发燃料处理装置

    公开(公告)号：US6082338A

    公开(公告)日：2000-07-04

    申请号：US119070

    申请日：1998-07-09

    申请人： Takahide Izutani ,  Akinori Osanai

    发明人： Takahide Izutani ,  Akinori Osanai

    IPC分类号： F01L1/34 ,  F02D13/02 ,  F02D41/00 ,  F02D41/02 ,  F02M25/08 ,  F02M33/04

    CPC分类号： F02D41/0045 ,  F02D13/0234 ,  F02D13/0261 ,  F02D41/0002 ,  F02D13/0215 ,  F02D2041/001 ,  F02D41/0032 ,  F02M25/08 ,  Y02T10/18 ,  Y02T10/42

    摘要： In an evaporated fuel treatment device for an internal combustion engine, various parameters indicating that an engine is currently in a state where a fuel vapor is generated from a fuel tank are detected from moment to moment to estimate in advance that the amount of the fuel vapor is generated more than a capacity of the canister. Then, the purge from the canister is promoted on the basis of that estimation so that the fuel vapor of more than the capacity of canister is prevented from being adsorbed by the canister. With this structure, the overflow of the fuel vapor from the canister is prevented, and also the evaporative emission is suppressed.

    摘要翻译： 在用于内燃机的蒸发燃料处理装置中，从时刻检测表示发动机当前处于从燃料箱产生燃料蒸气的状态的各种参数，预先估计燃料蒸气量 产生大于罐的容量。 然后，根据该估计，促进从罐的吹扫，使得防止罐的吸附量大于罐的容量的燃料蒸气。 利用这种结构，可以防止燃料蒸汽从罐中溢出，同时抑制蒸发发射。

    Evaporated fuel treatment device of an engine
    6.
    发明授权
    Evaporated fuel treatment device of an engine 失效
    发动机蒸发燃料处理装置

    公开(公告)号：US5806507A

    公开(公告)日：1998-09-15

    申请号：US897934

    申请日：1997-07-21

    申请人： Akinori Osanai

    发明人： Akinori Osanai

    IPC分类号： F02M25/08 ,  F02D41/00 ,  F02D41/02 ,  F02D41/06

    CPC分类号： F02D41/004 ,  F02M25/08

    摘要： An evaporated fuel treatment device comprising a purge control valve arranged between a canister and an intake passage of an engine. A drive pulse of the purge control valve is controlled by a duty ratio. When the purge action starts, the duty ratio is gradually increased. When the amount of the intake air is large other than at engine idling, the purge action is started. After the purge action is started, the purge action is performed even during engine idling.

    摘要翻译： 一种蒸发燃料处理装置，包括布置在发动机的罐和进气通道之间的清洗控制阀。 净化控制阀的驱动脉冲由占空比控制。 当清洗动作开始时，占空比逐渐增加。 当除了发动机空转之外，进气量大时，开始吹扫动作。 清洗动作开始后，即使在发动机怠速期间也执行清除动作。

    Apparatus for processing evaporated fuel
    7.
    发明授权
    Apparatus for processing evaporated fuel 失效
    蒸发燃料处理设备

    公开(公告)号：US5727531A

    公开(公告)日：1998-03-17

    申请号：US708711

    申请日：1996-09-05

    申请人： Akinori Osanai

    发明人： Akinori Osanai

    IPC分类号： F02D41/00 ,  F02M21/04 ,  F02M25/08 ,  F02M25/07

    CPC分类号： F02M25/0872 ,  F02D41/003

    摘要： An apparatus for processing evaporated fuel produced in a fuel tank for a multicylinder engine evenly distributes purged fuel to each cylinder of the engine. The apparatus has a canister 25 for adsorbing the evaporated fuel and a purge pipe 26 for connecting the canister to an intake duct and purging the adsorbed fuel into the intake duct. The purge pipe 26 has purge ports 1 and 2 that are open in the intake duct at different positions involving different velocities of intake air. The purge pipe 26 may have means for adjusting a flow time of purged fuel passing through the purge pipe. The purge ports may be arranged to produce a swirl of purged fuel in the intake air.

    摘要翻译： 用于处理在多缸发动机的燃料箱中产生的蒸发燃料的装置将排出的燃料均匀地分配到发动机的每个气缸。 该装置具有用于吸附蒸发的燃料的罐25和用于将罐连接到进气管道并将吸入的燃料吹入进气管道的吹扫管26。 吹扫管26具有吹扫口1和2，吹扫口1和2在进气管中在不同的位置处开口，这些位置涉及不同的进气速度。 吹扫管26可以具有用于调节通过清洗管的净化燃料的流动时间的装置。 吹扫口可以布置成在吸入空气中产生吹扫的燃料的漩涡。

    Apparatus for controlling air-fuel ratio of air-fuel mixture to an engine having an evaporated fuel purge system
    8.
    发明授权
    Apparatus for controlling air-fuel ratio of air-fuel mixture to an engine having an evaporated fuel purge system 失效
    用于控制空气 - 燃料混合物对具有蒸发的燃料净化系统的发动机的空燃比的装置

    公开(公告)号：US5476081A

    公开(公告)日：1995-12-19

    申请号：US259230

    申请日：1994-06-13

    申请人： Koji Okawa ,  Mitsuru Takada ,  Nobuyuki Kobayashi ,  Shuji Yuda ,  Kenji Harima ,  Toshinari Nagai ,  Hiroshi Kanai ,  Akinori Osanai ,  Kazuhiko Iwano

    发明人： Koji Okawa ,  Mitsuru Takada ,  Nobuyuki Kobayashi ,  Shuji Yuda ,  Kenji Harima ,  Toshinari Nagai ,  Hiroshi Kanai ,  Akinori Osanai ,  Kazuhiko Iwano

    IPC分类号： F02D41/00 ,  F02M25/08 ,  F02M51/00 ,  F02D41/04

    CPC分类号： F02D41/0045 ,  F02M25/08 ,  F02D41/0042

    摘要： An air-fuel ratio control apparatus includes: a determining part for determining a target purge ratio in accordance with operating conditions of an engine; a purge control part for controlling a flow rate of evaporated fuel, supplied from an evaporated fuel purge system into an intake passage of the engine, by actuating a purge control valve based on the target purge ratio, and for storing an evaporated fuel flow rate of the purge control valve; a fuel injection control part for generating a drive signal in accordance with a fuel injection time, and for controlling an air-fuel ratio of an air-fuel mixture to the intake passage by actuating a fuel injection valve in accordance with the drive signal; an estimating part for estimating the ratio of an evaporated fuel flow rate to an intake air flow rate based on sensed operating conditions of the engine and on the stored evaporated fuel flow rate of the purge control part; and a fuel injection time determining part for determining a fuel injection time based on the estimated ratio, and for supplying the fuel injection time to the fuel injection control part.

    摘要翻译： 空燃比控制装置包括：确定部，其根据发动机的运转条件来确定目标吹扫比; 吹扫控制部分，用于通过基于所述目标吹扫比率来驱动吹扫控制阀，用于控制从蒸发燃料吹扫系统供应到发动机的进气通道中的蒸发燃料的流量，并且用于存储蒸发燃料的蒸发燃料流量 清洗控制阀; 燃料喷射控制部分，用于根据燃料喷射时间产生驱动信号，并且根据驱动信号通过致动燃料喷射阀来控制空气 - 燃料混合物与进气通道的空燃比; 估计部分，用于基于感测到的发动机的运行条件以及所述净化控制部分的储存的蒸发燃料流量来估计蒸发的燃料流量与进气流量的比率; 以及燃料喷射时间确定部分，用于基于估计的比率确定燃料喷射时间，并且用于将燃料喷射时间提供给燃料喷射控制部分。

    Malfunction detection apparatus for detecting malfunction in evaporative fuel purge system
    9.
    发明授权
    Malfunction detection apparatus for detecting malfunction in evaporative fuel purge system 失效
    用于检测蒸发燃料净化系统故障的故障检测装置

    公开(公告)号：US5315980A

    公开(公告)日：1994-05-31

    申请号：US6113

    申请日：1993-01-15

    申请人： Takayuki Otsuka ,  Akinori Osanai ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Toru Kidokoro

    发明人： Takayuki Otsuka ,  Akinori Osanai ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Toru Kidokoro

    IPC分类号： F02D41/00 ,  F02M25/08 ,  F02M33/02

    CPC分类号： F02M25/0809

    摘要： A malfunction detection apparatus for detecting a malfunction in an evaporative fuel purge system, which malfunction detection apparatus is able to suppress a fluctuation of an air-fuel ratio. A negative pressure inside an intake passage is introduced into the evaporative fuel purge system. The existence/nonexistence of a malfunction in the evaporative fuel purge system is determined by using pressure values inside the evaporative fuel purge system which values are detected and supplied by a pressure detecting unit. The apparatus is provided with an air-fuel ratio fluctuation suppressing unit for suppressing a fluctuation of the air-fuel ratio of air suctioned into an engine when introducing the negative pressure into the evaporative fuel purge system.

    摘要翻译： 一种用于检测蒸发燃料净化系统故障的故障检测装置，该故障检测装置能够抑制空燃比的波动。 进气通道内的负压被引入蒸发燃料净化系统。 通过使用蒸发燃料净化系统内的压力值来确定蒸发燃料净化系统中的故障的存在/不存在，该压力值由压力检测单元检测和提供。 该装置设置有空燃比波动抑制单元，用于抑制当将负压引入蒸发燃料净化系统时吸入发动机的空气的空燃比的波动。