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41.发明授权Double air-fuel ratio sensor system having improved exhaust emission characteristics 失效具有改善的废气排放特性的双重空燃比传感器系统
公开(公告)号：US4819427A
公开(公告)日：1989-04-11
申请号：US166049
申请日：1988-03-09
CPC分类号： F02D41/1495 , 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 and downstream-side air-fuel ratio sensors. Also, when the output of the upstream-side air-fuel ratio sensor is in an abnormal state, an alarm is generated.
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和下游侧的输出进行调整， 侧空燃比传感器。 此外，当上游侧空燃比传感器的输出处于异常状态时，产生报警。
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42.发明授权
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。
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43.发明授权
公开(公告)号：US4723408A
公开(公告)日：1988-02-09
申请号：US904042
申请日：1986-09-04
IPC分类号： F02D41/14
CPC分类号： F02D41/1441 , F02D41/2454
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 and downstream-side air-fuel ratio sensors including an air-fuel ratio correction amount. Accordingly, only when the change of the intake air density is large, is a learning correction amount calculated so that a means value of the air-fuel ratio correction amount is brought close to a reference value. The actual air-fuel ratio is further adjusted in accordance with the learning correction amount.
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和下游侧的输出进行调节， 包括空燃比校正量的侧面空燃比传感器。 因此，只有当进气密度的变化大时，才算出以使空燃比校正量的均值接近基准值的学习修正量。 根据学习校正量进一步调整实际的空燃比。
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公开(公告)号：US4570590A
公开(公告)日：1986-02-18
申请号：US707872
申请日：1985-03-04
IPC分类号： F02B31/02 , F01L1/26 , F02B1/04 , F02B17/00 , F02B29/08 , F02B31/00 , F02B31/08 , F02D9/02 , F02D13/00 , F02F1/24 , F02F1/42 , F02M35/10 , F02M35/108 , F02M69/00 , F02B25/00
CPC分类号： F02M35/1085 , F02B31/087 , F02F1/4214 , F02M35/10216 , F02M35/10229 , F02M35/1047 , F02M35/108 , F02B1/04 , F02B2031/006 , F02F2001/245 , Y02T10/146
摘要： An engine with three intake ports and three intake valves for each cylinder. The first intake port is a helical port. The remaining two intake ports have intake control valves, which open when the engine speed and the engine load are large and close when the engine speed and the engine are small. Air thus is introduced alternatively from the first port only or from all the ports. Fuel is injected in the third port between the corresponding intake valve and intake control valve.
摘要翻译： 具有三个进气口和每个气缸三个进气阀的发动机。 第一个进气口是螺旋口。 剩余的两个进气口具有进气控制阀，当发动机转速和发动机负荷大时，进气控制阀打开，当发动机转速和发动机小时，进气控制阀关闭。 因此，空气因此仅从第一端口或从所有端口引入。 燃料被喷射到相应的进气门和进气控制阀之间的第三个口中。
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公开(公告)号：US5811884A
公开(公告)日：1998-09-22
申请号：US785447
申请日：1997-01-17
申请人： Hiroki Matuoka , Masaaki Tanaka , Sigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuichi Goto , Takayuki Otsuka
发明人： Hiroki Matuoka , Masaaki Tanaka , Sigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuichi Goto , Takayuki Otsuka
CPC分类号： B60R16/03 , G01R31/007 , H02J7/0034
摘要： An onboard load control apparatus and a method for detecting a fault of an onboard electrical load with high accuracy are disclosed. The control apparatus comprises an onboard battery mounted on an automotive vehicle, an electrical heater for electrically heating an electrical load such as an electrically-heated catalyst supplied with power from the onboard battery, an auxiliary relay for turning on/off the power to the electrical heater from the onboard battery, and an ECU for controlling the on/off operation of the auxiliary relay. The apparatus further comprises an engine speed detector for detecting the engine speed of the internal combustion engine and a fault judgement unit for judging whether the electrical heater is normal or faulty on the basis of the fluctuation amount of the engine speed of the internal combustion engine detected by the engine speed detector before and after switching the auxiliary relay. A fault of the electrical load is judged by detecting the voltage across the onboard battery while taking the fluctuation amount of the same voltage into consideration. The apparatus further comprises a load condition holder for holding the load condition of a specific load while the engine speed or the battery voltage is detected.
摘要翻译： 公开了一种车载负载控制装置和用于高精度地检测车载电气负载故障的方法。 控制装置包括安装在机动车辆上的车载电池，用于电加热诸如从车载电池供电的电加热催化剂的电负载的电加热器，用于将电力接通/断开到电气的辅助继电器 来自车载电池的加热器和用于控制辅助继电器的接通/断开操作的ECU。 该装置还包括用于检测内燃机的发动机转速的发动机速度检测器和用于基于检测到的内燃机的发动机转速的变动量来判断电加热器是正常还是有故障的故障判断单元 由发动机转速检测器切换辅助继电器前后。 通过检测车载电池两端的电压，同时考虑相同电压的波动量来判断电气负载的故障。 该装置还包括用于在检测到发动机速度或电池电压的同时保持特定负载的负载状态的负载条件保持器。
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46.发明授权Apparatus for controlling air-fuel ratio of air-fuel mixture to an engine having an evaporated fuel purge system 失效用于控制空气 - 燃料混合物对具有蒸发的燃料净化系统的发动机的空燃比的装置
公开(公告)号：US5476081A
公开(公告)日：1995-12-19
申请号：US259230
申请日：1994-06-13
申请人： Koji Okawa , Mitsuru Takada , Nobuyuki Kobayashi , Shuji Yuda , Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiko Iwano
发明人： Koji Okawa , Mitsuru Takada , Nobuyuki Kobayashi , Shuji Yuda , Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiko Iwano
CPC分类号： F02D41/0045 , F02M25/08 , F02D41/0042
摘要： An air-fuel ratio control apparatus includes: a determining part for determining a target purge ratio in accordance with operating conditions of an engine; a purge control part for controlling a flow rate of evaporated fuel, supplied from an evaporated fuel purge system into an intake passage of the engine, by actuating a purge control valve based on the target purge ratio, and for storing an evaporated fuel flow rate of the purge control valve; a fuel injection control part for generating a drive signal in accordance with a fuel injection time, and for controlling an air-fuel ratio of an air-fuel mixture to the intake passage by actuating a fuel injection valve in accordance with the drive signal; an estimating part for estimating the ratio of an evaporated fuel flow rate to an intake air flow rate based on sensed operating conditions of the engine and on the stored evaporated fuel flow rate of the purge control part; and a fuel injection time determining part for determining a fuel injection time based on the estimated ratio, and for supplying the fuel injection time to the fuel injection control part.
摘要翻译： 空燃比控制装置包括：确定部，其根据发动机的运转条件来确定目标吹扫比; 吹扫控制部分，用于通过基于所述目标吹扫比率来驱动吹扫控制阀，用于控制从蒸发燃料吹扫系统供应到发动机的进气通道中的蒸发燃料的流量，并且用于存储蒸发燃料的蒸发燃料流量 清洗控制阀; 燃料喷射控制部分，用于根据燃料喷射时间产生驱动信号，并且根据驱动信号通过致动燃料喷射阀来控制空气 - 燃料混合物与进气通道的空燃比; 估计部分，用于基于感测到的发动机的运行条件以及所述净化控制部分的储存的蒸发燃料流量来估计蒸发的燃料流量与进气流量的比率; 以及燃料喷射时间确定部分，用于基于估计的比率确定燃料喷射时间，并且用于将燃料喷射时间提供给燃料喷射控制部分。
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公开(公告)号：US5148795A
公开(公告)日：1992-09-22
申请号：US773718
申请日：1991-10-09
申请人： Toshinari Nagai , Hiroshi Tanaka , Makoto Suzuki
发明人： Toshinari Nagai , Hiroshi Tanaka , Makoto Suzuki
CPC分类号： F02D41/1494
摘要： An apparatus for controlling a heater for an oxygen sensor includes a heater controller for detecting a heater resistance value of a heater and for controlling the heater so that a detected resistance value of the heater is equal to a target resistance value. A specific operating condition detecting unit detects a specific operating condition of the internal combustion engine where the air-fuel ratio is other than a stoichiometric air-fuel ratio. A target resistance value changing unit changes the target resistance value when the air-fuel ratio in the specific operating condition indicated by the sensor output signal is s outside a normal range of air-fuel ratio which should be detected in the specific operating condition.
摘要翻译： 用于控制氧传感器的加热器的装置包括：加热器控制器，用于检测加热器的加热器电阻值，并用于控制加热器，使得加热器的检测电阻值等于目标电阻值。 特定的运转状态检测部检测空燃比是理论空燃比以外的内燃机的具体运转状态。 当由传感器输出信号表示的特定操作状态中的空燃比超出在特定操作条件下应检测的空燃比的正常范围时，目标电阻值改变单元改变目标电阻值。
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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
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.
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49.发明授权
公开(公告)号：US4779414A
公开(公告)日：1988-10-25
申请号：US928010
申请日：1986-11-07
CPC分类号： F02D41/1483 , F02D41/1441 , F02D41/2454
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 and downstream-side air-fuel ratio sensors including an air-fuel ratio correction amount. Also, a learning correction amount is calculated so that an integration amount of the air-fuel ratio correction amount is brought close to a reference value. The actual air-fuel ratio is further adjusted in accordance with the learning correction amount.
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和下游侧的输出进行调整， 包括空燃比校正量的侧面空燃比传感器。 此外，计算学习校正量，使得空燃比校正量的积分量接近参考值。 根据学习校正量进一步调整实际的空燃比。
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50.发明授权
公开(公告)号：US4761950A
公开(公告)日：1988-08-09
申请号：US903977
申请日：1986-09-04
CPC分类号： F02D41/1441 , F02D41/2441 , F02D41/2454
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 and downstream-side air-fuel ratio sensors. A center value of an air-fuel ratio correction amount or an air-fuel ratio feedback control parameter calculated based upon the output of the downstream-side air-fuel ratio sensor is calculated by a learning control, and an air-fuel ratio feedback control is initiated by using the center value when the engine enters into an air-fuel ratio feedback control 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和下游侧的输出进行调整， 侧空燃比传感器。 通过学习控制来计算基于下游侧空燃比传感器的输出计算出的空燃比校正量或空燃比反馈控制参数的中心值，空燃比反馈控制 通过在发动机进入空燃比反馈控制状态时使用中心值来启动。
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