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    Air-fuel ratio control apparatus
    2.
    发明授权
    Air-fuel ratio control apparatus 失效
    空燃比控制装置

    公开(公告)号：US4522180A

    公开(公告)日：1985-06-11

    申请号：US491643

    申请日：1983-05-04

    申请人： Hiroki Matsuoka ,  Toshimi Murai

    发明人： Hiroki Matsuoka ,  Toshimi Murai

    IPC分类号： F02D33/00 ,  F02D41/04 ,  F02D41/14

    CPC分类号： F02D41/1474

    摘要： An air-fuel ratio control apparatus in which air-fuel ratio detecting signal represents air-fuel ratio in a combustion chamber and an integrated amount increased or decreased in relation to the air-fuel ratio detecting signal is calculated from the air-fuel ratio detecting signal on the basis of parameters to correct fuel amount supplied to an intake system on the basis of the integrated amount. The frequency of the air-fuel ratio detecting signal when the air-fuel ratio in the combustion chamber reaches a predetermined value is defined as the basic frequency. To compensate for change with the passage of time in the output characteristics of an air-fuel ratio detecting sensor, said parameter value is corrected so that the frequency of the air-fuel ratio detecting signal becomes the basic frequency.

    摘要翻译： 根据空燃比检测算出空燃比控制装置，其中空燃比检测信号表示燃烧室中的空燃比和相对于空燃比检测信号增加或减少的积分量 基于参数，基于积分量来校正供给到进气系统的燃料量。 当燃烧室中的空燃比达到预定值时的空燃比检测信号的频率被定义为基本频率。 为了补偿空燃比检测传感器的输出特性中随时间的变化，校正所述参数值，使得空燃比检测信号的频率成为基本频率。

    Fuel vapor feed controlling apparatus for a lean burn type internal combustion engine
    6.
    发明授权
    Fuel vapor feed controlling apparatus for a lean burn type internal combustion engine 有权
    用于稀燃型内燃机的燃料蒸汽进料控制装置

    公开(公告)号：US06257218B1

    公开(公告)日：2001-07-10

    申请号：US09511962

    申请日：2000-02-23

    申请人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo ,  Zenichiro Mashiki ,  Tetsuji Nagata

    发明人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo ,  Zenichiro Mashiki ,  Tetsuji Nagata

    IPC分类号： F02M3304

    CPC分类号： F02D41/0032 ,  F02D41/3029 ,  F02D41/3064 ,  F02D2041/0015 ,  F02D2041/389 ,  F02D2250/18

    摘要： A fuel vapor feed controlling apparatus of a lean burn internal combustion engine suppresses either one of a rich misfire or a surge when fuel vapor is fed into the engine. A purge controlling unit controls an amount of fuel vapor fed from a fuel reservoir to the engine in response to an operational condition of the engine. A first compensation unit compensates the amount of fuel vapor such that an engine revolution speed of the engine may be identical with a target revolution speed. The purge controlling unit performs a purge control based on a compensation value compensated by the first compensation unit.

    摘要翻译： 当燃料蒸气被供给到发动机中时，稀燃内燃机的燃料蒸汽进料控制装置抑制浓气失火或浪涌中的任一种。 吹扫控制单元响应于发动机的操作条件控制从燃料箱供应到发动机的燃料蒸汽的量。 第一补偿单元补偿燃料蒸汽的量，使得发动机的发动机转速可以与目标转速相同。 净化控制单元基于由第一补偿单元补偿的补偿值执行清除控制。

    Fuel vapor control apparatus
    7.
    发明授权
    Fuel vapor control apparatus 失效
    燃油蒸气控制装置

    公开(公告)号：US06253743B1

    公开(公告)日：2001-07-03

    申请号：US09368474

    申请日：1999-08-04

    申请人： Yoshihiko Hyodo ,  Toshimi Murai ,  Hidekazu Sasaki ,  Koichi Takeuchi

    发明人： Yoshihiko Hyodo ,  Toshimi Murai ,  Hidekazu Sasaki ,  Koichi Takeuchi

    IPC分类号： F02M3302

    CPC分类号： F02M31/18 ,  F02M25/08 ,  Y02T10/126

    摘要： A fuel vapor control apparatus determines whether the concentration of fuel vapor in a space above the surface of liquid fuel in the fuel tank is less than a predetermined concentration. When the concentration of fuel vapor is less than the predetermined concentration, the concentration of fuel vapor in the fuel tank is increased and, when the concentration of fuel vapor exceeds the predetermined concentration, the increase of the concentration of fuel vapor is stopped. Therefore, an amount of fuel flowing out of the fuel tank can be reduced while using a reduced amount of energy.

    摘要翻译： 燃料蒸汽控制装置确定燃料箱中的液体燃料表面上方的空间中的燃料蒸气的浓度是否小于预定浓度。 当燃料蒸汽的浓度小于预定浓度时，燃料箱中燃料蒸气的浓度增加，并且当燃料蒸汽的浓度超过预定浓度时，停止燃料蒸气浓度的增加。 因此，能够减少从燃料箱流出的燃料量，同时减少能量。

    Exhaust gas purifying of lean-burn internal combustion engine
    8.
    发明授权
    Exhaust gas purifying of lean-burn internal combustion engine 有权
    稀燃内燃机的废气净化

    公开(公告)号：US6145306A

    公开(公告)日：2000-11-14

    申请号：US229177

    申请日：1999-01-13

    申请人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo

    发明人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo

    IPC分类号： F01N3/08 ,  F01N3/24 ,  F01N13/02 ,  F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/34 ,  F02D43/00 ,  F02M25/08 ,  F01N3/00

    CPC分类号： F02M25/08 ,  F01N13/009 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F02D41/0035 ,  F02D41/0275

    摘要： An exhaust gas purifying apparatus of a lean-burn internal combustion engine surely purifies nitrogen oxide occluded by a nitrogen oxide occluding/reducing catalyst without making a combustion of an air-fuel mixture unstable while utilizing a vapor fuel generated in a fuel tank. The exhaust gas purifying apparatus includes a gas state judging unit for judging a state of a vapor fuel gas supplied to an intake system of the lean-burn internal combustion engine, and an exhaust state control unit for setting, to a desired state, a state of the exhaust gas flowing to the nitrogen oxide occluding/reducing catalyst by selectively controlling the fuel injection valve and the gas supply unit in accordance with a state of the vapor fuel gas at the time when the nitrogen oxide occluded by the nitrogen oxide occluding/reducing catalyst provided in an exhaust system of the lean-burn internal combustion engine should be desorbed and purified.

    摘要翻译： 稀燃内燃机的废气净化装置可确实地净化由氮氧化物封闭/还原催化剂吸留的氮氧化物，而不会使空气燃料混合物的燃烧不利于在燃料箱中产生的蒸汽燃料。 排气净化装置具备：气体状态判定部，判断供给到稀燃用内燃机的进气系统的蒸气燃料气体的状态;排气状态控制部，将期望状态设定为状态 的废气通过根据氮氧化物被氮氧化物封闭/还原的氮氧化物时的蒸汽燃料气体的状态选择性地控制燃料喷射阀和气体供给单元而流向氮氧化物闭塞/还原催化剂 提供在稀燃内燃机的排气系统中的催化剂应被解吸和净化。

    Apparatus for detecting concentration of fuel vapor in lean-burn internal combustion engine, and applied apparatus thereof
    9.
    发明授权
    Apparatus for detecting concentration of fuel vapor in lean-burn internal combustion engine, and applied apparatus thereof 失效
    用于检测稀燃内燃机中的燃料蒸汽浓度的装置及其应用装置

    公开(公告)号：US6102003A

    公开(公告)日：2000-08-15

    申请号：US273515

    申请日：1999-03-22

    申请人： Yoshihiko Hyodo ,  Naoya Takagi ,  Toshimi Murai

    发明人： Yoshihiko Hyodo ,  Naoya Takagi ,  Toshimi Murai

    IPC分类号： F02M25/08 ,  F02D21/08 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F02D41/30 ,  F02M7/00

    CPC分类号： F02D41/3023 ,  F02D41/0045 ,  F02D41/1475 ,  F02D41/1497 ,  F02D41/0032 ,  F02M25/08

    摘要： A fuel vapor concentration detecting apparatus in a lean-burn internal combustion engine detects a fuel vapor concentration and executes purge control. The apparatus includes an output fluctuation detecting module for detecting, on such an occasion that the fuel vapor is purged into an intake system of the internal combustion engine, an output fluctuation just when the fuel vapor is purged, and a concentration detecting module for calculating the fuel vapor concentration in accordance with a magnitude of the output fluctuation detected by the output fluctuation detecting module. The fuel vapor concentration in the lean-burn internal combustion engine is thus detected. A purge quantity or a state of the fuel injection is changed corresponding to the detected concentration of the fuel vapor.

    摘要翻译： 稀燃内燃机中的燃料蒸气浓度检测装置检测燃料蒸气浓度并执行清洗控制。 该装置包括：输出波动检测模块，用于在燃料蒸气被清除到内燃机的进气系统中的情况下检测刚刚在清除燃料蒸气时的输出波动;以及浓度检测模块，用于计算 燃料蒸汽浓度根据由输出波动检测模块检测的输出波动的大小。 因此，能够检测稀燃内燃机的燃料蒸气浓度。 喷射量或燃料喷射状态根据检测到的燃料蒸气浓度而变化。

    Air-fuel ratio control system of internal combustion engine
    10.
    发明授权
    Air-fuel ratio control system of internal combustion engine 失效
    内燃机空燃比控制系统

    公开(公告)号：US4697567A

    公开(公告)日：1987-10-06

    申请号：US772888

    申请日：1985-09-05

    申请人： Hiroshi Sawada ,  Toshimi Murai

    发明人： Hiroshi Sawada ,  Toshimi Murai

    IPC分类号： F02D41/00 ,  F02D41/12 ,  F02D41/14

    CPC分类号： F02D41/1488 ,  F02D41/123

    摘要： An air-fuel ratio control system for an internal combustion engine. Excessive fuel supplying at fuel cut reset time is avoided, by interrupting the fuel supply when a fuel cut control signal is being output. An amount of fuel cut time during which the fuel cut control signal is output is determined, and a hold time is also determined. This hold time corresponds to an amount of time necessary for combustion gas to reach a feedback sensor, and be included in the feedback control signal, after termination of the fuel cut. A feedback or closed loop system is used during normal operations. An open loop control signal is used during fuel cut time, and for a period of time equivalent to the value of the hold time after the end of this fuel cut time. Therefore, open loop control is used until exhaust gases have again reached the feedback sensor so that feedback or closed loop control can thereafter be used.

    摘要翻译： 一种用于内燃机的空燃比控制系统。 通过在输出燃料切断控制信号时中断燃料供应，避免燃料切断复位时间过度燃料供给。 确定输出燃料切断控制信号的燃料切断时间量，并且还确定保持时间。 该保持时间对应于燃烧气体到达反馈传感器所需的时间量，并且在燃料切断终止之后被包括在反馈控制信号中。 在正常操作期间使用反馈或闭环系统。 在燃料切断时间期间使用开环控制信号，并且在与该燃料切断时间结束后的保持时间的值相当的时间段内使用。 因此，使用开环控制，直到废气再次到达反馈传感器，从而可以使用反馈或闭环控制。