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    Ignition timing control apparatus for an internal combustion engine having a plurality of cylinders
    2.
    发明授权
    Ignition timing control apparatus for an internal combustion engine having a plurality of cylinders 失效
    具有多个气缸的内燃机的点火正时控制装置

    公开(公告)号：US4676212A

    公开(公告)日：1987-06-30

    申请号：US834967

    申请日：1986-02-28

    申请人： Yuichi Kashimura ,  Noboru Sugiura ,  Toshio Ishii ,  Masami Shida ,  Akira Teragakiuchi ,  Yasunori Mouri

    发明人： Yuichi Kashimura ,  Noboru Sugiura ,  Toshio Ishii ,  Masami Shida ,  Akira Teragakiuchi ,  Yasunori Mouri

    IPC分类号： F02B1/04 ,  F02P5/152 ,  F02P5/14

    CPC分类号： F02P5/1523 ,  F02P5/1521 ,  F02P5/1522 ,  F02P5/1525 ,  F02B1/04 ,  Y02T10/46

    摘要： An ignition timing control apparatus for an internal combustion engine having a plurality of cylinders. The apparatus includes a knock sensor for detecting a knocking condition in the engine, sensors for detecting other operating conditions of the engine, a microprocessor unit for receiving signals from the sensors to determine a basic ignition timing of the engine and generate an ignition timing control signal, and a power transistor circuit responsive to the ignition timing control signal from the microprocessor unit to switch on and off the primary current in an ignition coil and generate a high-voltage ignition signal. The microprocessor unit has a control function of retarding the basic ignition timing a predetermined amount in response to a knock detected during an ignition operation at the basic ignition timing and another control function of gradually restoring the retarded ignition timing to the basic ignition timing in response to a knock detected during an ignition operation at the retarded ignition timing from the basic ignition timing. The apparatus includes control means responsive to the occurrence of a knock to correct the basic ignition timing for each cylinder of the engine whereby the basic ignition timing of each cylinder is controlled to be retarded in response to the detection of a knock in each cylinder.

    摘要翻译： 一种具有多个气缸的内燃机点火正时控制装置。 该装置包括用于检测发动机中的爆震状态的爆震传感器，用于检测发动机的其它运行状态的传感器，用于从传感器接收信号以确定发动机的基本点火正时并产生点火正时控制信号的微处理器单元 以及功率晶体管电路，其响应于来自微处理器单元的点火正时控制信号，以接通和关断点火线圈中的初级电流并产生高电压点火信号。 微处理器单元具有控制功能，其响应于在基本点火时间点火操作期间检测到的爆震而将基本点火正时延迟预定量，并且响应于基于点火正时的逐步恢复到基本点火正时的另一控制功能 在点火运行期间，从基本点火正时开始，在延迟点火正时检测到爆震。 该装置包括响应于发生爆震以校正发动机的每个气缸的基本点火正时的控制装置，由此每个气缸的基本点火正时被控制为响应于每个气缸中的爆震检测而被延迟。

    Method of controlling air-fuel ratio of internal combustion engine so as to effectively maintain the air fuel ratio at a desired air-fuel ratio of .lambda.=1
    3.
    发明授权
    Method of controlling air-fuel ratio of internal combustion engine so as to effectively maintain the air fuel ratio at a desired air-fuel ratio of .lambda.=1 失效
    控制内燃机的空燃比的方法，以有效地将空燃比保持在λ= 1的期望空燃比

    公开(公告)号：US4354238A

    公开(公告)日：1982-10-12

    申请号：US162481

    申请日：1980-06-24

    申请人： Toshio Manaka ,  Takeshi Atago ,  Toshio Ishii ,  Yasunori Mouri

    发明人： Toshio Manaka ,  Takeshi Atago ,  Toshio Ishii ,  Yasunori Mouri

    IPC分类号： F02D41/14 ,  F02D41/26 ,  F02D45/00 ,  F02B3/04 ,  F02D35/00

    CPC分类号： F02D41/26

    摘要： A method of controlling the air-fuel ratio so as to be effectively maintained at a desired air-fuel ratio of .lambda.=1 is composed of a combination of an electronic map control for effecting the air-fuel ratio control on the basis of map data read out from a data map stored in ROM as air-fuel ratio control data in correspondence to various operation parameters of an engine and an O.sub.2 -feedback control for controlling the air-fuel ratio on the basis of oxygen quantity detected from the exhaust gas. Upon the occurrence of changes in the control quantity for a predetermined number of times in the course of the O.sub.2 -control, the latter is changed over to the map control. At that time point, a control quantity for the map control is corrected on the basis of a mean control quantity during the O.sub.2 -feedback control. Unless a significant variation takes place in the engine operating conditions, the map control is continued for a predetermined time and then changed over to the O.sub.2 -control. Upon the occurrence of a significant variation in the engine operating conditions, the map feedback control is immediately changed over to the O.sub.2 -control.

    摘要翻译： 控制空燃比以有效维持在λ= 1的期望空燃比的方法由用于基于地图数据进行空燃比控制的电子地图控制的组合 从存储在ROM中的数据图中读出，作为与发动机的各种操作参数相对应的空燃比控制数据，以及基于从废气检测的氧气量来控制空燃比的O2反馈控制。 在O2控制的过程中发生控制量改变预定次数时，将后者改变到地图控制。 在该时间点，基于在O2反馈控制期间的平均控制量来校正地图控制的控制量。 除非在发动机工作条件下发生显着变化，否则地图控制继续预定时间，然后转换到O2控制。 在发动机运行条件发生显着变化时，地图反馈控制立即转换到O2控制。

    Control apparatus of internal combustion engine
    4.
    发明授权
    Control apparatus of internal combustion engine 失效
    内燃机控制装置

    公开(公告)号：US4972818A

    公开(公告)日：1990-11-27

    申请号：US313038

    申请日：1989-02-21

    申请人： Toshiro Nomura ,  Seiichi Kikuchi ,  Toshio Ishii ,  Yasunori Mouri ,  Takeshi Atago

    发明人： Toshiro Nomura ,  Seiichi Kikuchi ,  Toshio Ishii ,  Yasunori Mouri ,  Takeshi Atago

    IPC分类号： F02P11/00 ,  F02D35/00 ,  F02D41/34 ,  F02P3/045 ,  F02P5/15 ,  F02P7/067

    CPC分类号： F02D41/009 ,  F02P3/0456 ,  F02P5/1502 ,  F02P5/1506 ,  F02P7/0675 ,  Y02T10/46

    摘要： On an outer peripheral portion of a rotor (1), three protrusions are provided per each cylinder. A pickup coil 2 is disposed facing to the outer peripheral portion with a predetermined distance. A rotation signal (S.sub.0) is converted to a rotation signal pulse (S.sub.1) having three pulses (A, B and C) per each cylinder corresponding to the three protrusions. According to the first signal (A) of the rotation signal pulse (S.sub.1) the cranking ignition period (A.sub.1) is determined. According to the second signal (B) of the rotation signal pulse (S.sub.1), the starting timing for flowing current to the ignition coil (8) is decided. According to the third signal (C) of the rotation signal pulse (S.sub.1), the ignition timing at cranking operation is defined by detecting time intervals (3t, t, 2t) between the three signals (A, B, C).

    摘要翻译： 在转子（1）的外周部分上，每个气缸设置三个突出部。 拾取线圈2以预定距离面对外周部分。 旋转信号（S0）被转换为对应于三个突起的每个气缸具有三个脉冲（A，B和C）的旋转信号脉冲（S1）。 根据旋转信号脉冲（S1）的第一信号（A），确定起动点火时间（A1）。 根据旋转信号脉冲（S1）的第二信号（B），决定向点火线圈（8）流动电流的开始时刻。 根据旋转信号脉冲（S1）的第三信号（C），通过检测三个信号（A，B，C）之间的时间间隔（3t，t，2t）来定义起动操作时的点火正时。

    Diagnostic equipment for an exhaust gas cleaning apparatus
    8.
    发明申请
    Diagnostic equipment for an exhaust gas cleaning apparatus 失效
    废气净化设备诊断设备

    公开(公告)号：US20070028596A1

    公开(公告)日：2007-02-08

    申请号：US11543191

    申请日：2006-10-05

    申请人： Yutaka Takaku ,  Toshio Ishii

    发明人： Yutaka Takaku ,  Toshio Ishii

    IPC分类号： F01N7/00 ,  F01N3/00

    CPC分类号： F02D41/1441 ,  F01N3/22 ,  F01N11/00 ,  F01N11/007 ,  F01N2550/02 ,  F01N2550/14 ,  F02D35/003 ,  F02D41/1498 ,  F02D41/221 ,  F02D2200/0402 ,  F02D2200/1015 ,  Y02T10/40 ,  Y02T10/47

    摘要： A diagnostic equipment for an exhaust gas cleaning apparatus installed for an engine, comprising a misfire detector which detects the misfire of the engine, and a secondary-air-system failure detector which detects the failure of a secondary air system. An index corrector corrects a deterioration index calculated by a deterioration-index calculator, in accordance with the detected result of the detector. A deterioration decision unit decides if the diagnostic equipment has failed, by the use of the corrected deterioration index. In a case where the extent of the misfire or the like is severe, a decision interrupter interrupts the decision of the deterioration decision unit. Thus, even when the misfire of the engine or the failure of the secondary air system has occurred, the detection of the deterioration of a catalyst does not err. It is therefore avoided to erroneously replace the catalyst which has not deteriorated yet, or to run the engine in spite of the deterioration of the catalyst.

    摘要翻译： 一种用于发动机安装的废气净化装置的诊断装置，包括检测发动机失火的失火检测器和检测二次空气系统故障的二次空气系统故障检测器。 索引校正器根据检测器的检测结果来校正由劣化指数计算器计算出的劣化指数。 恶化判定单元通过使用校正后的劣化指数来决定诊断设备是否失败。 在失火等的程度严重的情况下，决策中断器中断劣化判定单元的判定。 因此，即使发动机失火或二次空气系统发生故障，催化剂劣化的检测也不会发生错误。 因此，尽管催化剂劣化，但是也可以避免错误地更换尚未劣化的催化剂或运行发动机。

    Diagnostic equipment for an exhaust gas cleaning apparatus
    10.
    发明授权
    Diagnostic equipment for an exhaust gas cleaning apparatus 失效

    公开(公告)号：US06408617B1

    公开(公告)日：2002-06-25

    申请号：US09983476

    申请日：2001-10-24

    申请人： Yutaka Takaku ,  Toshio Ishii

    发明人： Yutaka Takaku ,  Toshio Ishii

    IPC分类号： F01N300

    CPC分类号： F02D41/1441 ,  F01N3/22 ,  F01N11/00 ,  F01N11/007 ,  F01N2550/02 ,  F01N2550/14 ,  F02D35/003 ,  F02D41/1498 ,  F02D41/221 ,  F02D2200/0402 ,  F02D2200/1015 ,  Y02T10/40 ,  Y02T10/47

    摘要： A diagnostic equipment for an exhaust gas cleaning apparatus installed for an engine, comprising a misfire detector which detects the misfire of the engine, and a secondary-air-system failure detector which detects the failure of a secondary air system. An index corrector corrects a deterioration index calculated by a deterioration-index calculator, in accordance with the detected result of the detector. A deterioration decision unit decides if the diagnostic equipment has failed, by the use of the corrected deterioration index. In a case where the extent of the misfire or the like is severe, a decision interrupter interrupts the decision of the deterioration decision unit. Thus, even when the misfire of the engine or the failure of the secondary air system has occurred, the detection of the deterioration of a catalyst does not err. It is therefore avoided to erroneously replace the catalyst which has not deteriorated yet, or to run the engine in spite of the deterioration of the catalyst.