公开(公告)号：US4562818A

公开(公告)日：1986-01-07

申请号：US627621

申请日：1984-07-03

申请人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Takashi Shigematsu ,  Setsuo Tokoro

发明人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Takashi Shigematsu ,  Setsuo Tokoro

IPC分类号： F02D41/14 ,  F02B3/02 ,  F02D5/02

CPC分类号： F02D41/1498 ,  F02D2200/1015

摘要： In an internal combustion engine, a standard deviation of combustion variations generated for every firing stroke of at least one cylinder is calculated. The misfire limit of the engine is detected by determining whether or not the calculated standard deviation is greater than a reference value. When the calculated standard deviation is greater than the reference value, the controlled air-fuel ratio is decreased, while when the calculated standard deviation is not greater than the reference value, the controlled air-fuel ratio is increased, thereby attaining a lean burn system without a lean mixture sensor.

摘要翻译： 在内燃机中，计算对于至少一个气缸的每个击发行程产生的燃烧变化的标准偏差。 通过确定计算的标准偏差是否大于参考值来检测发动机的失火极限。 当计算出的标准偏差大于参考值时，控制的空燃比降低，而当计算的标准偏差不大于参考值时，控制的空燃比增加，从而获得稀燃系统 没有稀混合传感器。

公开(公告)号：US4513721A

公开(公告)日：1985-04-30

申请号：US406527

申请日：1982-08-09

申请人： Toshikazu Ina ,  Hideki Obayashi ,  Hisasi Kawai ,  Tokio Kohama ,  Daisaku Sawada ,  Takashi Shigematsu

发明人： Toshikazu Ina ,  Hideki Obayashi ,  Hisasi Kawai ,  Tokio Kohama ,  Daisaku Sawada ,  Takashi Shigematsu

IPC分类号： F02B77/08 ,  F02D41/14 ,  G01L3/00 ,  F02B5/00 ,  F02B3/02 ,  F02B3/04 ,  F02D5/00

CPC分类号： F02D41/1497 ,  F02B77/08 ,  G01L3/00

摘要： In an air-fuel ratio control device, a torque detector for detecting torque variations which indicate combustion variations in an engine is mounted at the supporting portions of the internal combustion engine. A detecting signal from the torque detector is introduced into an electronic control unit which controls the amount of injecting fuel, namely the air-fuel ratio. The electronic control unit controls the air-fuel ratio toward the lean side by the signal from the torque detector so that the combustion variations (torque variations) in the engine does not become large.

摘要翻译： 在空燃比控制装置中，在内燃机的支承部安装用于检测表示发动机的燃烧变化的转矩变动的转矩检测器。 来自扭矩检测器的检测信号被引入到控制喷射燃料量即空燃比的电子控制单元中。 电子控制单元通过来自转矩检测器的信号来控制朝向倾斜侧的空燃比，使得发动机的燃烧变化（转矩变动）不会变大。

公开(公告)号：US4421086A

公开(公告)日：1983-12-20

申请号：US229264

申请日：1981-01-28

申请人： Tomoyuki Watanabe ,  Takashi Shigematsu

发明人： Tomoyuki Watanabe ,  Takashi Shigematsu

IPC分类号： F02P5/15 ,  F02P5/145 ,  F02P5/04

CPC分类号： F02P5/1455 ,  Y02T10/46

摘要： Ignition timing is changed within a predetermined range at a slow frequency and the fluctuations in vibrations of the engine block at that slow frequency are detected. By monitoring the phase of the vibrations with the phase of the slow frequency, whether the timing is on the advanced side or delayed side with respect to the optimum ignition timing can be determined. Ignition timing is controlled based on the result of the determination so that the ignition timing can approach the optimum ignition timing. As a result, shifts from the optimum ignition timing can be reliably corrected, so that the engine always operates at the best condition.

摘要翻译： 点火正时以较慢的频率在预定范围内变化，并且检测到在该慢频率下的发动机缸体的振动的波动。 通过以慢频的相位监视振动的相位，可以确定相对于最佳点火正时是否在高级侧或延迟侧。 基于确定的结果控制点火正时，使点火正时接近最佳点火正时。 结果，可以可靠地校正从最佳点火正时的转移，使得发动机总是在最佳状态下运行。

公开(公告)号：US4275692A

公开(公告)日：1981-06-30

申请号：US65756

申请日：1979-08-10

申请人： Yuji Takeda ,  Takashi Shigematsu ,  Daisaku Sawada

发明人： Yuji Takeda ,  Takashi Shigematsu ,  Daisaku Sawada

IPC分类号： F02P5/155 ,  F02P5/152 ,  F02P5/153 ,  F02P5/14

CPC分类号： F02P5/1522 ,  Y02T10/46

摘要： A system for controlling ignition timings in an engine wherein ignition signals in the specific cylinders are previously advanced by a predetermined value over ignition signals in other cylinders, the knockings in the specific cylinders are detected, and ignition timings in all the cylinders are delayed in accordance with said knockings, whereby strong knockings which would otherwise be caused to all the cylinders are prevented in advance, the ignition timing control of knockings in the engine can be effected irrespective of the accuracies of a knocking sensor.

摘要翻译： 一种用于控制发动机中的点火正时的系统，其中特定气缸中的点火信号预先在其他气缸中的点火信号上超过预定值，检测到特定气缸中的气泡，并且所有气缸中的点火正时按照 因为预先阻止了对所有气缸造成的强烈爆震，所以可以实现发动机中的爆震的点火正时控制，而与爆震传感器的精度无关。

公开(公告)号：US4197821A

公开(公告)日：1980-04-15

申请号：US827707

申请日：1977-08-25

申请人： Daisaku Sawada ,  Takashi Shigematsu ,  Yuji Takeda

发明人： Daisaku Sawada ,  Takashi Shigematsu ,  Yuji Takeda

IPC分类号： F02P5/10

CPC分类号： F02P5/103

摘要： A device for controlling the vacuum advancing of ignition timing including a vacuum advancer, a diaphragm valve, a first vacuum port opened to an intake passage which is positioned so as to be immediately upstream of a throttle valve when it is fully closed and downstream of the throttle valve when it is slightly opened. A second vacuum port is located absolutely downstream of the throttle valve, wherein the diaphragm valve produces a fraction of the intake manifold vacuum when the throttle valve is fully closed while it communicates therethrough the intake manifold vacuum supplied from the second vacuum port when the throttle valve is opened so as to position the first vacuum port at the downstream thereof.

摘要翻译： 一种用于控制点火正时的真空推进的装置，包括真空推进器，隔膜阀，向进气通道开口的第一真空口，其位于当其完全关闭时紧邻节流阀的上游并且位于下游 节气门稍微打开时。 第二真空端口位于节流阀的绝对下游，其中当节气门完全关闭时，隔膜阀产生进气歧管真空的一部分，同时当节流阀 打开以将第一真空口定位在其下游。