公开(公告)号：US4132200A

公开(公告)日：1979-01-02

申请号：US767989

申请日：1977-02-11

申请人： Masaharu Asano ,  Shigeo Aono ,  Akio Hosaka ,  Kokichi Ochiai ,  Michiyoshi Yamane

发明人： Masaharu Asano ,  Shigeo Aono ,  Akio Hosaka ,  Kokichi Ochiai ,  Michiyoshi Yamane

IPC分类号： F02D41/14 ,  F02B75/10

CPC分类号： F02D41/1479 ,  F02D41/149

摘要： A closed-loop emission control apparatus for internal combustion engines includes exhaust composition sensor for feedback control of the air-fuel mixture. When the temperature in the exhaust passage is lower than the operating temperature of the sensor, control is switched to an open-loop mode. The feedback control signal is fluctuated above and below a predetermined DC bias at periodic intervals during the open-loop mode to switch the control to the closed-loop mode in a minimum transition time as soon as the sensor's temperature condition warrants feedback control.

摘要翻译： 用于内燃机的闭环排放控制装置包括用于空气 - 燃料混合物的反馈控制的排气组成传感器。 当排气通道中的温度低于传感器的工作温度时，控制切换到开环模式。 一旦传感器的温度条件需要反馈控制，反馈控制信号在开环模式期间以周期性间隔在预定的DC偏压之上和之下波动，以在最小转换时间内将控制切换到闭环模式。

公开(公告)号：US4131089A

公开(公告)日：1978-12-26

申请号：US767134

申请日：1977-02-09

申请人： Takeshi Fujishiro ,  Shigeo Aono ,  Akio Hosaka ,  Masaharu Asano ,  Nobuzi Manaka ,  Mituhiko Ezoe

发明人： Takeshi Fujishiro ,  Shigeo Aono ,  Akio Hosaka ,  Masaharu Asano ,  Nobuzi Manaka ,  Mituhiko Ezoe

IPC分类号： F02D41/14 ,  F02B3/08 ,  F01N3/08 ,  F02M7/12

CPC分类号： F02D41/1479

摘要： A reference voltage, which is compared with an output voltage of an exhaust gas sensor in a differential signal generator of an electronic closed loop air-fuel ratio control system, changes depending upon a mean value of an output of the exhaust gas sensor provided in an exhaust pipe extending from an internal combustion engine. Furthermore, the magnitude of the reference voltage is limited in such a manner as to be within a predetermined range, or in other words, the magnitude of the reference voltage is limited at at least one of an upper and a lower values thereof.

摘要翻译： 与电子闭环空燃比控制系统的差分信号发生器中的废气传感器的输出电压进行比较的参考电压根据设置在电子闭环空燃比控制系统中的排气传感器的输出的平均值而变化 从内燃机延伸的排气管。 此外，参考电压的大小以限制在预定范围内的方式被限制，或者换句话说，参考电压的大小被限制在其上限值和下限值中的至少一个。

公开(公告)号：US4142482A

公开(公告)日：1979-03-06

申请号：US767133

申请日：1977-02-09

申请人： Masaharu Asano ,  Takeshi Fujishiro ,  Shigeo Aono ,  Akio Hosaka ,  Nobuzi Manaka ,  Mituhiko Ezoe

发明人： Masaharu Asano ,  Takeshi Fujishiro ,  Shigeo Aono ,  Akio Hosaka ,  Nobuzi Manaka ,  Mituhiko Ezoe

IPC分类号： F02D41/14 ,  F02B3/08 ,  F01N3/08 ,  F02M7/12

CPC分类号： F02D41/1479 ,  F02D41/1456

摘要： Emission control apparatus for internal combustion engines is provided with a sensor for detecting the concentration of a particular exhaust composition in the emissions from the engine. A signal indicating the deviation of the mixture ratio from a controlled point is generated by comparing the output from the sensor with a reference level, the signal being modified in amplitude according to a predetermined control characteristic and used to regulate the air-fuel mixture ratio at the desired control point. The varying magnitude of the sensed concentration is smoothed into a signal of slowly varying magnitude which is used to control the reference level so that error introduced into the deviation indicating signal due to the change with time in the output performance of the exhaust composition sensor is self-compensated. A level sensor is provided to detect when the reference level reaches an end of the control range to change the operating mode of the engine from closed-loop to open-loop mode.

摘要翻译： 用于内燃机的排放控制装置设置有用于检测来自发动机的排放物中的特定排气组合物的浓度的传感器。 通过将传感器的输出与基准电平进行比较，产生混合比与受控点的偏差的信号，该信号根据预定的控制特性在幅度上进行改变，并用于调节空气 - 燃料混合比在 所需的控制点。 感测浓度的变化幅度被平滑化成缓慢变化幅度的信号，其用于控制​​参考电平，使得由于排气组成传感器的输出性能随时间变化而引入到偏差指示信号中的误差是自身的 补偿。 提供了一个液位传感器来检测参考电平何时达到控制范围的结束，以将发动机的运行模式从闭环模式转换到开环模式。

公开(公告)号：US4215656A

公开(公告)日：1980-08-05

申请号：US767988

申请日：1977-02-11

申请人： Nobuzi Manaka ,  Takeshi Fujishiro ,  Shigeo Aono ,  Akio Hosaka ,  Masaharu Asano ,  Mituhiko Ezoe

发明人： Nobuzi Manaka ,  Takeshi Fujishiro ,  Shigeo Aono ,  Akio Hosaka ,  Masaharu Asano ,  Mituhiko Ezoe

IPC分类号： F02D41/14 ,  F02B3/08 ,  F02M7/12

CPC分类号： F02D41/1479

摘要： A circuit is provided in an electronic closed loop air-fuel ratio control system for starting and terminating the operation of the system at different voltages from an exhaust gas sensor.

摘要翻译： 电路设置在电子闭环空燃比控制系统中，用于在与废气传感器不同的电压下启动和终止系统的操作。

公开(公告)号：US4461257A

公开(公告)日：1984-07-24

申请号：US247905

申请日：1981-03-26

申请人： Akio Hosaka ,  Shigeo Aono

发明人： Akio Hosaka ,  Shigeo Aono

IPC分类号： F02P5/152 ,  G01L23/22 ,  G01M15/04 ,  F02P5/04

CPC分类号： F02P5/1521 ,  F02P5/152 ,  G01L23/225 ,  G01M15/046 ,  F02D2200/1015 ,  Y02T10/46

摘要： A method and system for correcting engine ignition timing without the use of any pressure sensor or vibration sensor and depending upon engine knocking is disclosed. The presence or absence of knocking is determined by reference to the rate of change of engine speed. This method is based on the fact that engine speed changes abruptly when engine knocking occurs, as compared with the normal engine condition, because of abrupt changes in pressure within the cylinders. The system of the present invention comprises an crankshaft angle sensor to generate a crankshaft angle pulse signal, a period measuring means to output an interrupt request signal and to determine the presence or absence of engine knocking, a microcomputer, and an ignition signal generator for outputting an ignition signal in accordance with an ignition timing signal and a dwell angle signal.

摘要翻译： 公开了一种用于校正发动机点火正时而不使用任何压力传感器或振动传感器并依赖于发动机爆震的方法和系统。 通过参照发动机转速的变化率来确定爆震的存在与否。 这种方法是基于发动机爆震发生时的发动机速度与正常发动机状态相比由于气缸内的压力突然变化而急剧变化的事实。 本发明的系统包括：曲轴角度传感器，用于产生曲轴角度脉冲信号;周期测量装置，输出中断请求信号;确定是否存在发动机撞击;微型计算机;以及点火信号发生器，用于输出 根据点火定时信号和驻车角信号的点火信号。

公开(公告)号：US4203394A

公开(公告)日：1980-05-20

申请号：US769871

申请日：1977-02-11

申请人： Shigeo Aono ,  Akio Hosaka

发明人： Shigeo Aono ,  Akio Hosaka

IPC分类号： F02D41/14 ,  F02B3/00

CPC分类号： F02D41/1479

摘要： A closed-loop emission control apparatus for internal combustion engines includes an exhaust composition sensor disposed at the upstream side of a catalytic converter which converts the noxious exhaust components into harmless products at the highest efficiency when the air-fuel ratio is controlled at a value in the vicinity of stoichiometry in accordance with a control signal derived from the sensed concentration of the exhaust composition. The output from the exhaust composition sensor is utilized to generate an offset voltage by averaging the instantaneous values of the sensed concentration, the offset voltage being combined with the control signal to cancel an error introduced thereinto during use of the apparatus.

摘要翻译： 用于内燃机的闭环排放控制装置包括设置在催化转化器的上游侧的排气组合物传感器，其将空燃比控制在最高效率时将有害废气组分转化为无害产物 根据从排气组合物的感测浓度得到的控制信号，化学计量的附近。 来自排气组成传感器的输出用于通过使感测浓度的瞬时值平均来产生偏移电压，该偏移电压与控制信号组合以消除在使用该装置期间引入的误差。

公开(公告)号：US4187812A

公开(公告)日：1980-02-12

申请号：US815049

申请日：1977-07-12

申请人： Akio Hosaka ,  Shigeo Aono

发明人： Akio Hosaka ,  Shigeo Aono

IPC分类号： F02D41/10 ,  F02D41/14 ,  F02M7/00

CPC分类号： F02D41/10 ,  F02D41/1483

摘要： A closed loop fuel control system for an internal combustion engine having in its exhaust system an exhaust composition sensor generating a signal indicative of air-fuel ratio in gases in the exhaust system and an integral controller providing integration on the generated signal for adjusting the ratio of air and fuel supplied to the engine, and a storage device which stores the output from the controller in response to a sensed particular engine operating parameter. The stored signal is later extracted in response to the sensing of the same engine operating parameter to rapidly vary the controller output.

摘要翻译： 一种用于内燃机的闭环燃料控制系统，其在其排气系统中具有产生指示排气系统中的气体中的空燃比的信号的排气组成传感器和提供积分在所产生的信号上以调整比例 提供给发动机的空气和燃料以及响应于感测到的特定发动机操作参数而存储来自控制器的输出的存储装置。 响应于相同的发动机操作参数的感测，随后提取存储的信号以快速改变控制器输出。

公开(公告)号：US4142490A

公开(公告)日：1979-03-06

申请号：US733704

申请日：1976-10-19

申请人： Akio Hosaka ,  Shigeo Aono

发明人： Akio Hosaka ,  Shigeo Aono

IPC分类号： F02P5/10 ,  F02P5/155 ,  F02P7/067 ,  F02P5/04

CPC分类号： F02P5/1556 ,  F02P7/067 ,  Y02T10/46

摘要： The spark advance control apparatus of the invention comprises a vacuum advance control mechanism and a speed advance control circuit. The vacuum advance control mechanism senses the vacuum pressure in the intake manifold of an internal combustion engine and generates an electrical pulse in advanced timing in relation to the sensed vacuum. The speed advance control circuit receives the pulse from the vacuum advance control mechanism, converts it into a voltage signal representative of the revolution of the engine crankshaft and generates an output voltage which varies nonlinearly as a function of the voltage signal. A pulse-width generator is provided having a first input connected to receive the pulse from the vacuum advance control mechanism and a second input connected to receive the nonlinear speed related voltage signal to generate a pulse which commences in response to the vacuum advance pulse and ends at a time determined by the speed related voltage signal. The trailing edge of the output from the pulse-width converter is utilized for ignition.

摘要翻译： 本发明的火花提前控制装置包括真空提前控制机构和速度提前控制电路。 真空提前控制机构感测内燃机的进气歧管中的真空压力，并相对于检测到的真空产生高速定时的电脉冲。 速度提前控制电路接收来自真空提前控制机构的脉冲，将其转换成代表发动机曲轴的转速的电压信号，并产生作为电压信号的函数非线性变化的输出电压。 提供了一种脉冲宽度发生器，其具有被连接以接收来自真空提前控制机构的脉冲的第一输入端和连接成接收非线性速度相关电压信号的第二输入端，以产生响应于真空提前脉冲而开始的脉冲并且结束 在一段时间由速度相关的电压信号决定。 来自脉冲宽度转换器的输出的后沿用于点火。

公开(公告)号：US4214558A

公开(公告)日：1980-07-29

申请号：US836014

申请日：1977-09-23

申请人： Tetsuji Nishioka ,  Masaharu Asano ,  Makoto Anzai ,  Akio Hosaka

发明人： Tetsuji Nishioka ,  Masaharu Asano ,  Makoto Anzai ,  Akio Hosaka

IPC分类号： F02D41/14 ,  F02M7/24 ,  F02B3/00

CPC分类号： F02D41/1484

摘要： A fuel control system for an internal combustion engine includes an exhaust gas sensor from which feedback control signal is derived, a limiter for limiting the maximum and minimum voltages of the control signal and a triangular wave generator. The triangular wave has a constant amplitude peak of which the maximum value is slightly greater than the maximum voltage of the control signal and the minimum value is slightly below the minimum voltage of the control signal. A comparator is provided to produce an output at one of two binary levels depending upon whether the control signal is above or below the instantaneous value of the triangular wave. The output from the comparator is a train of pulses whose duty cycle ranges from predetermined minimum to maximum values which correspond respectively to the minimum open and closure times of air-fuel mixing control valves.

摘要翻译： 用于内燃机的燃料控制系统包括从其导出反馈控制信号的排气传感器，用于限制控制信号的最大和最小电压的限幅器和三角波发生器。 三角波具有恒定幅度峰值，其最大值稍大于控制信号的最大电压，最小值略低于控制信号的最小电压。 提供比较器以根据控制信号是否高于或低于三角波的瞬时值来产生两个二进制电平之一的输出。 比较器的输出是一列脉冲，其占空比范围从分别对应于空燃混合控制阀的最小打开和关闭时间的预定最小值到最大值。

公开(公告)号：US4313412A

公开(公告)日：1982-02-02

申请号：US131094

申请日：1980-03-18

申请人： Akio Hosaka ,  Masaharu Asano

发明人： Akio Hosaka ,  Masaharu Asano

IPC分类号： F02D41/34 ,  F02B1/04 ,  F02D41/06 ,  F02D41/08 ,  F02D41/10 ,  F02D41/26 ,  F02D45/00 ,  F02B3/00

CPC分类号： F02D41/086 ,  F02D41/064 ,  F02D41/068 ,  F02D41/107 ,  F02D41/263 ,  F02B1/04

摘要： A fuel supply control system is disclosed which uses a stored program type digital computer for calculating a basic amount of fuel and modifying the basic amount in accordance with various correction factors dependent upon engine operating conditions so as to determine an actual amount of fuel supplied to an engine. The actual fuel amount is determined by adding all correction factors dependent upon engine temperature and multiplying the sum by the basic fuel amount.

摘要翻译： 公开了一种燃料供给控制系统，其使用存储的程序型数字计算机来计算基本燃料量并且根据发动机操作条件根据各种校正因子来修改基本量，以便确定供应给 发动机。 实际燃料量通过加上所有依赖于发动机温度的校正因子并将总和乘以基本燃料量来确定。