公开(公告)号：US4400974A

公开(公告)日：1983-08-30

申请号：US285278

申请日：1981-07-15

申请人： Yutaka Nishimura ,  Yoshishige Oyama ,  Tadashi Kirisawa ,  Hiroshi Kuroiwa ,  Minoru Osuga ,  Yasunori Mouri

发明人： Yutaka Nishimura ,  Yoshishige Oyama ,  Tadashi Kirisawa ,  Hiroshi Kuroiwa ,  Minoru Osuga ,  Yasunori Mouri

IPC分类号： G01F1/68 ,  F02D41/18 ,  F02M69/48 ,  G01F1/684 ,  G01F1/698 ,  G01F5/00 ,  G01F15/04 ,  G01P5/12 ,  G01M15/00

CPC分类号： F02M69/48 ,  F02D41/187 ,  G01F1/6842 ,  G01F1/698 ,  G01F5/00 ,  G01P5/12 ,  Y02T10/142

摘要： An intake air amount detecting system which comprises:a temperature-dependent resistor disposed in an intake air path of an internal combustion engine;a sensor control circuit which feeds a heating current to the temperature-dependent resistor, which detects the change in resistance of the temperature-dependent resistor, which amplifies the detected signal, which effects the compensation depending upon the temperature of the intake air, and which controls the heating current in order to maintain the temperature of the temperature-dependent resistor constant; andan operation circuit which converts a signal that represents the heating current into an intake air flow rate;wherein the sensor control circuit is provided with a response-adjusting circuit which delays the response of the heating current only when the intake air flow rate decreases.

摘要翻译： 一种进气量检测系统，包括：设置在内燃机的进气通道中的温度依赖电阻器; 传感器控制电路，其将加热电流馈送到温度依赖性电阻器，其检测放热检测信号的温度依赖电阻器的电阻变化，其根据进气的温度影响补偿，以及哪个 控制加热电流，以保持温度相关电阻器的温度恒定; 以及将表示所述加热电流的信号转换成进气流量的运算电路; 其中传感器控制电路设置有响应调节电路，其仅在进气流量降低时延迟加热电流的响应。

公开(公告)号：US4622125A

公开(公告)日：1986-11-11

申请号：US653550

申请日：1984-09-24

申请人： Yoshishige Oyama ,  Tadashi Kirisawa ,  Minoru Osuga

发明人： Yoshishige Oyama ,  Tadashi Kirisawa ,  Minoru Osuga

IPC分类号： G01N27/406 ,  G01N27/58

CPC分类号： G01N27/4065

摘要： An oxygen concentration control system comprising an electrolyte of the oxygen-ionconduction type exposed on its one surface to the interior of a chamber conducting gases under measurement through a diffusion resistance member, and the system controls the oxygen concentration of gases so that the voltage created across the electrolyte is equal to the predetermined voltage. The inventive system comprises a means for preventing the malfunctioning of the control system caused by the time lag in sensing the oxygen concentration which occurs when the oxygen concentration of the gases varies abruptly or the setting of the oxygen concentration is varied.

摘要翻译： 一种氧浓度控制系统，其包括在其一个表面上暴露于通过扩散阻力构件测量的气体的室内的氧离子传导型电解质，并且该系统控制气体的氧浓度，使得跨越 电解液等于预定电压。 本发明的系统包括用于防止由于气体的氧浓度突然变化或氧气浓度变化而发生的氧气浓度的时间滞后引起的控制系统故障的装置。

公开(公告)号：US4751907A

公开(公告)日：1988-06-21

申请号：US906949

申请日：1986-09-15

申请人： Tadahiro Yamamoto ,  Eiichi Ohnishi ,  Tadaki Oota ,  Hiroaki Oogane ,  Minoru Osuga ,  Yoshishige Oyama

发明人： Tadahiro Yamamoto ,  Eiichi Ohnishi ,  Tadaki Oota ,  Hiroaki Oogane ,  Minoru Osuga ,  Yoshishige Oyama

IPC分类号： F02D35/00 ,  F02D41/14 ,  G01N27/406 ,  G01N31/22

CPC分类号： G01N27/4065 ,  F02D35/003 ,  F02D41/2441 ,  F02D41/2474 ,  F02D41/2454

摘要： In an A/F ratio sensor of mixture supplied for an internal combustion engine, which has a detector for detecting the concentration of residual oxygen in exhaust gas and determines the A/F ratio by retrieving an air excess ratio table with an output of the detector, there is further provided an additional air introducing device, which introduces a predetermined quantity of air into the engine for a certain period of time, under the condition that the velocity of air flowing through a throttle valve is equal to the sonic velocity. The oxygen concentration detector is calibrated by the comparison of the outputs thereof before and after introduction of the additional air. According to this invention, the A/F ratio of the mixture can be detected accurately without the influence of the aged deterioration of the oxygen concentration.

摘要翻译： 在供给用于内燃机的混合物的A / F比传感器中，其具有用于检测废气中的残余氧浓度的检测器，并且通过用检测器的输出检索空气过剩率表来确定A / F比 进一步提供了一种额外的空气引入装置，其在流过节流阀的空气的速度等于声速的条件下，将预定量的空气引入发动机中一段时间​​。 通过在引入附加空气之前和之后的输出的比较来校准氧浓度检测器。 根据本发明，可以准确地检测混合物的A / F比，而不会受到氧浓度老化的影响。

公开(公告)号：US4748953A

公开(公告)日：1988-06-07

申请号：US932375

申请日：1986-11-20

申请人： Minoru Osuga ,  Yoshishige Oyama

发明人： Minoru Osuga ,  Yoshishige Oyama

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

CPC分类号： F02D41/1483 ,  F02D41/1479 ,  F02D41/1456

摘要： In feedback control for the air/fuel ratio based on a sensor producing an output signal proportional to a change in the air/fuel ratio, a control constant modifier is operative to vary the proportional component and the integration component in a feedback system in accordance with an air/fuel ratio set for controlling, thereby assuring stability of ultimate fuel control.

摘要翻译： 在基于产生与空气/燃料比的变化成比例的输出信号的传感器的空燃比的反馈控制中，控制常数修正器用于根据反馈系统改变反馈系统中的比例分量和积分分量 设定用于控制的空气/燃料比，从而确保最终燃料控制的稳定性。

公开(公告)号：US4534330A

公开(公告)日：1985-08-13

申请号：US575666

申请日：1984-01-31

申请人： Minoru Osuga ,  Yoshishige Oyama

发明人： Minoru Osuga ,  Yoshishige Oyama

IPC分类号： G01N27/26 ,  F02D41/14 ,  F02D41/24 ,  G01N25/00 ,  G01N27/406 ,  G01N27/409 ,  G01N27/41 ,  F02B3/00 ,  F02B75/10 ,  F02M7/00 ,  F02M23/04

CPC分类号： G01N27/4065 ,  F02D41/1474 ,  F02D41/1476 ,  F02D41/2474 ,  F02D41/2454

摘要： A sensor for detecting an air/fuel ratio is fitted to an exhaust pipe of an internal combustion engine so as to effect feedback control and to keep the air/fuel ratio of the engine at a predetermined value. To improve the feedback control accuracy, the sensor response must be increased. If the response is increased too much, however, the sensor output is found deviated from the true air/fuel ratio, and the deviation quantity is also found proportional to the change of the air-fuel ratio with respect to time. The invention makes it possible to make appropriate air/fuel ratio control by compensating for the output signal of the sensor using the signal component based upon the change of the air/fuel ratio with time, among the sensor output signals.

摘要翻译： 用于检测空燃比的传感器装配到内燃机的排气管上，以实现反馈控制并使发动机的空燃比保持在预定值。 为提高反馈控制精度，必须提高传感器响应。 然而，如果响应增加太多，则发现传感器输出偏离真实的空气/燃料比，并且还发现偏离量与空燃比相对于时间的变化成比例。 本发明可以通过在传感器输出信号中基于空燃比随时间的变化来补偿使用信号分量的传感器的输出信号来进行适当的空燃比控制。

公开(公告)号：US4825838A

公开(公告)日：1989-05-02

申请号：US167118

申请日：1988-03-11

申请人： Minoru Osuga ,  Yoshishige Oyama

发明人： Minoru Osuga ,  Yoshishige Oyama

IPC分类号： F02D41/00 ,  F02D41/14

CPC分类号： F02D41/1486 ,  F02D41/1474 ,  F02D41/1479 ,  F02D41/1456

摘要： In an internal combustion engine, in which, during the lean-burn region of its operation, fuel supplied for the engine is controlled so as to make an acutal air/fuel ratio follow a predetermined lean air/fuel ratio, an air/fuel ratio control apparatus detects the amplitude of a pulsating component in an output voltage of an oxygen sensor. The pulsating component is caused by the occurence of a misfire. The control apparatus corrects a reference for the sensor output voltage in a feedback control of the air/fuel ratio in accordance with the detected amplitude of the pulsating component, whereby the stable operation of the engine can be secured irrespective of the aged change of the stable combustion limit of the engine.

公开(公告)号：US4716760A

公开(公告)日：1988-01-05

申请号：US833032

申请日：1986-02-26

申请人： Minoru Osuga ,  Yoshishige Oyama

发明人： Minoru Osuga ,  Yoshishige Oyama

IPC分类号： G01N27/406 ,  G01M15/00

CPC分类号： G01N27/4065

摘要： A novel air-fuel detection system is disclosed, comprising a solid electrolyte with a diffusion resistor for controlling the oxygen diffusion to measure the air excess rate of an exhaust gas. A predetermined current is supplied to the solid electrolyte for a predetermined length of time to apply the oxygen into the diffusion resistor. Subsequently, a predetermined current of opposite polarity is supplied to the solid electrolyte for a predetermined length of time to draw the oxygen out of the diffusion resistor. The time required from the start of drawing to generation of an electromotive force due to the difference in oxygen component pressures between the sides of the solid electrolyte is measured and the above operations are alternatively repeated in the time sharing manner to determine the air-fuel ratio.

摘要翻译： 公开了一种新颖的空气燃料检测系统，其包括具有扩散电阻器的固体电解质，用于控制氧气扩散以测量废气的空气过剩率。 将预定电流供给固体电解质预定的时间长度以将氧施加到扩散电阻器中。 随后，将预定的相反极性的电流供给固体电解质一段预定的时间以将氧气从扩散电阻器中抽出。 测量由于固体电解质侧面之间的氧分量压力的差异而从绘制开始到产生电动势所需的时间，并且以分时方式交替地重复上述操作以确定空燃比 。

公开(公告)号：US4424568A

公开(公告)日：1984-01-03

申请号：US229840

申请日：1981-01-30

申请人： Yutake Nishimura ,  Yoshishige Oyama ,  Hiroshi Kuroiwa ,  Minoru Osuga

发明人： Yutake Nishimura ,  Yoshishige Oyama ,  Hiroshi Kuroiwa ,  Minoru Osuga

IPC分类号： F02D41/10 ,  F02D41/26 ,  F02P5/15 ,  F02B3/04 ,  F02D5/02 ,  F02M51/00

CPC分类号： F02D41/263 ,  F02D41/107 ,  F02P5/1504 ,  Y02T10/46

摘要： A method controls of the amount of fuel, ignition timing and the amount of exhaust reflux recirculation during transient operations of an internal combustion engine such as acceleration and/or deceleration. In this method, the present data of the intake air flow rate or intake negative pressure and previously-derived data with respect thereto are utilized to control the amount of fuel to be injected based on an extrapolation or correction method.

摘要翻译： 一种方法控制燃料量，点火正时以及内燃机过渡操作期间的排气回流再循环量，例如加速和/或减速。 在该方法中，根据外推法或校正方法，利用进气量或进气负压的现有数据以及与之相关的预先导出的数据来控制要喷射的燃料量。

公开(公告)号：US4882030A

公开(公告)日：1989-11-21

申请号：US239008

申请日：1988-08-30

申请人： Seikoo Suzuki ,  Masayuki Miki ,  Takao Sasayama ,  Minoru Osuga ,  Yoshishige Oyama

发明人： Seikoo Suzuki ,  Masayuki Miki ,  Takao Sasayama ,  Minoru Osuga ,  Yoshishige Oyama

IPC分类号： G01N27/419 ,  G01N27/27 ,  G01N27/406 ,  G01N27/409 ,  G01N27/41

CPC分类号： G01N27/4065

摘要： An air-fuel detection system comprising a solid electrolyte, first and second electrodes formed on the surface of the solid electrolyte, a diffusion resistor formed on the first electrode for controlling the gas diffusion into the first electrode, and a detector circuit for detecting conditions of the engine exhaust gas to detect the air-fuel ratio thereof, wherein the detector circuit measures the electromotive force generated between the first and second electrodes during a first period, and controls a selected one of the voltage and current applied between the first and second electrodes to keep the electromotive force constant during a second period, the selected one of the voltage and current being produced as a signal representing the air-fuel ratio.

摘要翻译： 一种空气燃料检测系统，包括固体电解质，形成在固体电解质表面上的第一和第二电极，形成在第一电极上的扩散电阻器，用于控制气体扩散到第一电极中;以及检测器电路， 发动机废气以检测其空燃比，其中所述检测器电路在第一时段期间测量在所述第一和第二电极之间产生的电动势，并且控制施加在所述第一和第二电极之间的电压和电流中的所选择的一个 为了在第二时段期间保持电动势恒定，所选择的一个电压和电流被产生为表示空燃比的信号。

公开(公告)号：US4629535A

公开(公告)日：1986-12-16

申请号：US702750

申请日：1985-02-19

申请人： Yoshishige Oyama ,  Minoru Osuga

发明人： Yoshishige Oyama ,  Minoru Osuga

IPC分类号： G01N27/419 ,  F02D41/14 ,  G01N27/406 ,  G01N27/407 ,  G01N27/409 ,  G01N27/41 ,  G01N27/413 ,  G01N27/416 ,  G01N27/46

CPC分类号： G01N27/4075 ,  F02D41/1476 ,  G01N27/4065

摘要： An air-fuel ratio detector including an oxygen ion conductive solid electrolyte, first and second electrodes provided on respective sides of the solid electrolyte, a porous diffusion resistor covering the first electrode, and a circuit arrangement for supplying a current between the first and second electrodes. In order to enable a detection of a wide range of air-fuel ratios, the current supplied between the first and second electrodes is controlled so as to feed oxygen from the second electrode to the first electrode through the solid electrolyte and then withdraw oxygen from the first electrode to the second electrode through the solid electrolyte. At the time of withdrawal of the oxygen, the mobility or migration of the oxygen is measured, with the mobility of the oxygen being detected in dependence upon a variation rate of a withdrawal current, an average value of the withdrawal current, or a time period from the starting time of the withdrawal to a time when the oxygen content near the first electrode has become nearly zero.

摘要翻译： 一种空燃比检测器，包括氧离子传导性固体电解质，设置在固体电解质的各侧的第一和第二电极，覆盖第一电极的多孔扩散电阻器和用于在第一和第二电极之间提供电流的电路装置 。 为了能够检测大范围的空燃比，控制在第一和第二电极之间供应的电流，以便通过固体电解质从第二电极向第一电极供给氧，然后从 第一电极通过固体电解质到第二电极。 在取出氧气时，测量氧气的迁移率或迁移量，根据取出电流的变化率，取出电流的平均值或时间段来检测氧气的迁移率 从撤回的开始时间到第一电极附近的氧含量变为几乎为零的时间。