公开(公告)号：US4924837A

公开(公告)日：1990-05-15

申请号：US360243

申请日：1989-06-01

申请人： Yoshiki Chujo ,  Keiji Aoki ,  Yoshihiko Hyodo ,  Toshiyasu Katsuno

发明人： Yoshiki Chujo ,  Keiji Aoki ,  Yoshihiko Hyodo ,  Toshiyasu Katsuno

IPC分类号： F02D41/00 ,  F02D41/04 ,  F02D41/14 ,  F02D41/18 ,  F02D41/24 ,  F02D41/34

CPC分类号： F02D41/182 ,  F02D41/144 ,  F02D41/1496 ,  F02D41/2422

摘要： A fuel injection system for an internal combustion engine wherein an oxygen sensor for detecting a limit electric current is employed for providing a signal indicating an oxygen partial pressure in the gas introduced into the engine. The sensor detects an amount of air newly introduced into the engine. In addition to a map for calculating a basic fuel injection amount from the oxygen partial pressure, a second map is provided for calculating the basic fuel amount from a parameter such as a degree of opening of the throttle valve. A degree of activation of the oxygen sensor is determined by detecting the impedance of the sensor. When it is determined that the oxygen sensor is not activated, the second map is employed in place of the first map to calculate the basic fuel amount based on the degree of opening of the throttle valve.

摘要翻译： 一种用于内燃机的燃料喷射系统，其中采用用于检测极限电流的氧传感器，以提供指示引入发动机的气体中的氧气分压的信号。 传感器检测新引入发动机的空气量。 除了用于从氧分压计算基本燃料喷射量的地图之外，还提供第二图，用于根据诸如节流阀的开度的参数来计算基本燃料量。 通过检测传感器的阻抗来确定氧传感器的激活程度。 当确定氧传感器未被激活时，采用第二图来代替第一映射，以基于节气门的打开程度来计算基本燃料量。

公开(公告)号：US4905654A

公开(公告)日：1990-03-06

申请号：US266098

申请日：1988-11-02

申请人： Toshiyasu Katsuno ,  Keiji Aoki ,  Yoshiki Chujo

发明人： Toshiyasu Katsuno ,  Keiji Aoki ,  Yoshiki Chujo

IPC分类号： F02D45/00 ,  F02D41/14

CPC分类号： F02D41/144

摘要： A control device for an internal combustion engine having an oxygen sensor, and calculation means for calculating a weight of oxygen fed to the internal combustion engine. The oxygen sensor outputs a signal corresponding only to a density of oxygen contained in intake gas fed to the engine. The oxygen sensor has a diffusion layer having pores through which oxygen molecules pass, the pores having a diameter less than or equal to the mean free path of the oxygen molecules contained in the intake gas.

摘要翻译： 一种具有氧传感器的内燃机的控制装置和用于计算供给到内燃机的氧气的重量的计算装置。 氧传感器输出仅对应于供给到发动机的进气中所含的氧气密度的信号。 氧传感器具有扩散层，该扩散层具有氧分子通过的孔，孔的直径小于或等于进入气体中所含的氧分子的平均自由程。

公开(公告)号：US4739614A

公开(公告)日：1988-04-26

申请号：US831566

申请日：1986-02-21

申请人： Toshiyasu Katsuno ,  Nobuaki Kayanuma ,  Yasushi Sato ,  Toshio Tanahashi ,  Yoshiki Chujo ,  Toshinari Nagai ,  Kohichi Hasegawa ,  Hironori Bessho ,  Takatoshi Masui

发明人： Toshiyasu Katsuno ,  Nobuaki Kayanuma ,  Yasushi Sato ,  Toshio Tanahashi ,  Yoshiki Chujo ,  Toshinari Nagai ,  Kohichi Hasegawa ,  Hironori Bessho ,  Takatoshi Masui

IPC分类号： F01N11/00 ,  F02D41/14

CPC分类号： F02D41/1488 ,  F01N11/007 ,  F02D41/1441 ,  F01N2550/02 ,  F01N2900/0422 ,  F02D41/1456 ,  Y02T10/47

摘要： In a double air-fuel ratio sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust passage, the actual air-fuel ratio is adjusted in accordance with an air-fuel ratio correction amount calculated by using the output of the upstream-side air-fuel ratio sensor and an air-fuel ratio feedback control parameter such as delay time periods, skip amounts, or integration amounts calculated by using the output of the downstream-side air-fuel ratio sensor, and the calculation of the air-fuel ratio feedback control parameter is prohibited when the downstream-side air-fuel ratio sensor is in an abnormal state.

摘要翻译： 在设置在排气通路中的催化剂转化器的上游和下游的两个空燃比传感器系统的双重空燃比传感器系统中，根据通过使用计算出的空燃比校正量来调整实际空燃比 上游侧空燃比传感器的输出和利用下游侧空燃比传感器的输出计算的延迟时间段，跳过量或积分量等空燃比反馈控制参数，以及 当下游侧空燃比传感器处于异常状态时，禁止计算空燃比反馈控制参数。

公开(公告)号：US4703619A

公开(公告)日：1987-11-03

申请号：US848263

申请日：1986-04-04

申请人： Yoshiki Chujo ,  Nobuaki Kayanuma ,  Hironori Bessho ,  Takatoshi Masui ,  Toshiyasu Katsuno ,  Toshio Tanahashi

发明人： Yoshiki Chujo ,  Nobuaki Kayanuma ,  Hironori Bessho ,  Takatoshi Masui ,  Toshiyasu Katsuno ,  Toshio Tanahashi

IPC分类号： F02D33/00 ,  F02D41/00 ,  F02D41/14 ,  F02D41/02

CPC分类号： F02D41/1479 ,  F02D41/1441

摘要： In a double air-fuel sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust gas passage, an air-fuel ratio correction amount is gradually changed in accordance with the output of the upstream-side air-fuel ratio sensor, and the actual air-fuel ratio is adjusted in accordance with the air-fuel ratio correction amount. The gradual-change speed of the air-fuel ratio correction amount is changed in accordance with the output of the downstream-side air-fuel ratio sensor.

摘要翻译： 在设置在废气通道中的催化剂转化器的上游和下游的两个空燃比传感器系统中，空燃比校正量根据上游侧空气的输出而逐渐变化 - 燃料比传感器，并且根据空燃比校正量来调节实际空燃比。 空燃比校正量的逐渐变化速度根据下游侧空燃比传感器的输出而变化。

公开(公告)号：US5035358A

公开(公告)日：1991-07-30

申请号：US496549

申请日：1990-03-20

申请人： Toshiyasu Katsuno ,  Satoshi Iguchi ,  Yoshiki Chujo

发明人： Toshiyasu Katsuno ,  Satoshi Iguchi ,  Yoshiki Chujo

IPC分类号： F02M69/04 ,  F02M69/08

CPC分类号： F02M69/08 ,  F02M69/047 ,  Y10S239/90

摘要： A fuel injector comprising a pair of air passages which are joined at the nozzle opening, whereby fuel injected from the fuel supply bore is joined with the airstreams flowing in the air passages. At this time, the fuel is carried by the airstreams and thus flows through the air passages at a high speed, and accordingly, the fuel is caused to impinge against the inner wall of the nozzle opening at a high speed.

摘要翻译： 一种燃料喷射器，包括在喷嘴开口处连接的一对空气通道，由此从燃料供应孔喷射的燃料与在空气通道中流动的气流接合。 此时，燃料由气流携带，因此高速地流过空气通路，因此燃料高速撞击喷嘴开口的内壁。

公开(公告)号：US4745741A

公开(公告)日：1988-05-24

申请号：US847304

申请日：1986-04-02

申请人： Takatoshi Masui ,  Toshinari Nagai ,  Toshiyasu Katsuno ,  Yoshiki Chujo ,  Nobuaki Kayanuma ,  Hironori Bessho ,  Yasushi Sato ,  Toshio Tanahashi

发明人： Takatoshi Masui ,  Toshinari Nagai ,  Toshiyasu Katsuno ,  Yoshiki Chujo ,  Nobuaki Kayanuma ,  Hironori Bessho ,  Yasushi Sato ,  Toshio Tanahashi

IPC分类号： F02D41/14

CPC分类号： F02D41/1441

摘要： In a double air-fuel sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust gas passage, an actual air-fuel ratio is adjusted in accordance with the outputs of the upstream-side air-fuel ratio sensor and the downstream-side air-fuel ratio sensor. The adjustment of the air-fuel ratio by the downstream-side air-fuel ratio sensor is stopped when the engine is in a predetermined state.

摘要翻译： 在设置在废气通道中的催化剂转化器的上游和下游的两个空燃比传感器系统中，实际空燃比根据上游侧空气燃料的输出 比传感器和下游侧空燃比传感器。 当发动机处于预定状态时，下游侧空燃比传感器的空燃比的调节停止。

公开(公告)号：USRE33942E

公开(公告)日：1992-06-02

申请号：US515183

申请日：1990-04-26

申请人： Toshiyasu Katsuno ,  Nobuaki Kayanuma ,  Yasushi Sato ,  Toshio Tanahashi ,  Yoshiki Chujo ,  Toshinari Nagai ,  Kohichi Hasegawa ,  Hironori Bessho ,  Takatoshi Masui

发明人： Toshiyasu Katsuno ,  Nobuaki Kayanuma ,  Yasushi Sato ,  Toshio Tanahashi ,  Yoshiki Chujo ,  Toshinari Nagai ,  Kohichi Hasegawa ,  Hironori Bessho ,  Takatoshi Masui

IPC分类号： F01N11/00 ,  F02D41/14

CPC分类号： F02D41/1441 ,  F01N11/007 ,  F02D41/1474 ,  Y02T10/47

摘要： In a double air-fuel ratio sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust passage, the actual air-fuel ratio is adjusted in accordance with an air-fuel ratio correction amount calculated by using the output of the upstream-side air-fuel ratio sensor and an air-fuel ratio feedback control parameter such as delay time periods, skip amounts, or integration amounts calculated by using the output of the downstream-side air-fuel ratio sensor, and the calculation of the air-fuel ratio feedback control parameter is prohibited when the downstream-side air-fuel ratio sensor is in an abnormal state.

公开(公告)号：US4693076A

公开(公告)日：1987-09-15

申请号：US848580

申请日：1986-04-07

申请人： Yoshiki Chujo ,  Nobuaki Kayanuma ,  Hironori Bessho ,  Takatoshi Masui ,  Toshinari Nagai ,  Toshiyasu Katsuno ,  Toshio Tanahashi

发明人： Yoshiki Chujo ,  Nobuaki Kayanuma ,  Hironori Bessho ,  Takatoshi Masui ,  Toshinari Nagai ,  Toshiyasu Katsuno ,  Toshio Tanahashi

IPC分类号： F02D41/14

CPC分类号： F02D41/1482 ,  F02D41/1441 ,  F02D41/1474

摘要： In a double air-fuel sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust gas passage, an air-fuel ratio correction amount is remarkably changed when the output of the upstream-side air-fuel ratio sensor is switched from the lean side to the rich side or vice versa, and the actual air-fuel ratio is adjusted in accordance with the air-fuel ratio correction amount. The remarkable-change speed of the air-fuel ratio correction amount is changed in accordance with the output of the downstream-side air-fuel ratio sensor.

摘要翻译： 在设置在废气通道中的催化剂转化器的上游和下游的两个空燃比传感器系统中，空燃比校正量在上游侧空气燃料的输出 比率传感器从瘦侧切换到富侧，反之亦然，并且根据空燃比校正量来调节实际空燃比。 空燃比校正量的显着变化速度根据下游侧空燃比传感器的输出而变化。

公开(公告)号：US4729219A

公开(公告)日：1988-03-08

申请号：US846153

申请日：1986-03-31

申请人： Nobuaki Kayanuma ,  Toshinari Nagai ,  Takatoshi Masui ,  Yoshiki Chujo ,  Hironori Bessho ,  Yasushi Sato ,  Toshiyasu Katsuno ,  Toshio Tanahashi

发明人： Nobuaki Kayanuma ,  Toshinari Nagai ,  Takatoshi Masui ,  Yoshiki Chujo ,  Hironori Bessho ,  Yasushi Sato ,  Toshiyasu Katsuno ,  Toshio Tanahashi

IPC分类号： F02D41/14

CPC分类号： F02D41/1441 ,  F02D41/1481

摘要： In a double air-fuel sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust gas passage, a delay operation is performed upon the output of the downstream-side air-fuel ratio sensor, so that the actual air-fuel ratio is adjusted in accordance with the output of the upstream-side air-fuel ratio sensor and the delayed output of the downstream-side air-fuel ratio sensor.

摘要翻译： 在设置在排气通路中的催化剂转换器的上游和下游的两个空燃比传感器系统中，对下游侧空燃比传感器的输出进行延迟动作， 根据上游侧空燃比传感器的输出和下游侧空燃比传感器的延迟输出来调节实际的空燃比。

公开(公告)号：US4942860A

公开(公告)日：1990-07-24

申请号：US151422

申请日：1988-02-02

申请人： Yoshiki Chujo ,  Tokuta Inoue ,  Toshiaki Konomi ,  Yoshihiko Hyodo

发明人： Yoshiki Chujo ,  Tokuta Inoue ,  Toshiaki Konomi ,  Yoshihiko Hyodo

IPC分类号： F02D35/00 ,  F02D41/00 ,  F02D41/14

CPC分类号： F02D35/0038 ,  F02D41/0007 ,  F02D41/144 ,  F02D41/1455 ,  F02D41/1456 ,  Y02T10/144

摘要： An engine control system having an oxygen density sensor arranged in an intake system at a position downstream of a throttle valve for detecting the amount of air newly introduced into the engine. The sensor is a limit electric current detection type capable of detecting a continuously changing density of the oxygen. An amount of fuel to be injected is calculated in accordance with the output level of the sensor by using mapped data of the output level of the sensor signal. A precise detection of new air is made possible while maintaining the advantages of the known D-J system. An ignition timing also may be calculated by the signal from the oxygen sensor.

摘要翻译： 一种具有氧气密度传感器的发动机控制系统，其布置在进气系统中的节气门下游的位置处，用于检测新引入发动机的空气量。 该传感器是能够检测氧的浓度连续变化的极限电流检测型。 通过使用传感器信号的输出电平的映射数据，根据传感器的输出电平来计算要喷射的燃料量。 可以精确地检测新的空气，同时保持已知的D-J系统的优点。 也可以通过来自氧传感器的信号来计算点火正时。