公开(公告)号：US5230319A

公开(公告)日：1993-07-27

申请号：US771445

申请日：1991-10-04

申请人： Takayuki Otsuka ,  Nobuaki Kayanuma ,  Kouichi Osawa ,  Hironori Okamizu ,  Chikao Kunimasa

发明人： Takayuki Otsuka ,  Nobuaki Kayanuma ,  Kouichi Osawa ,  Hironori Okamizu ,  Chikao Kunimasa

IPC分类号： F02B75/02 ,  F02D41/00 ,  F02D41/22 ,  F02M25/08

CPC分类号： F02M25/0809 ,  F02B2075/027

摘要： A malfunction detection apparatus for detecting a malfunction in an evaporated fuel purge system in which fuel vapor from a fuel tank is adsorbed in an adsorbent in a canister and the adsorbed fuel vapor in the adsorbent is purged into an intake passage of an engine. The apparatus includes a detection part for detecting a concentration of fuel in the fuel vapor purged into the intake passage so that a change in the detected fuel concentration from a time when a purge cutting is performed to a time when a purging is performed after the purge cutting has been performed is detected, and a discrimination part for determining whether there is a malfunction in the system on the basis of the change in the detected fuel concentration by the detection part. The apparatus also includes a fuel vapor detection part for detecting a condition of fuel vapor in the fuel tank, and a purge cut time varying part for varying a purge cut time period for which the purge cutting is continuously performed, the purge cut time being varied by the purge cut time varying part in response to the detected fuel vapor condition by the fuel vapor detection part.

摘要翻译： 一种故障检测装置，用于检测蒸发燃料净化系统中的故障，其中来自燃料箱的燃料蒸汽被吸附在罐中的吸附剂中，并且吸附剂中的吸附的燃料蒸气被吹扫到发动机的进气通道中。 该装置包括检测部分，用于检测清除进入通道中的燃料蒸汽中的燃料浓度，使得从进行吹扫切割时到检测到的净化之后进行清洗时的检测燃料浓度的变化 检测到已经进行了切割，以及判别部，其基于检测部的检测燃料浓度的变化来判定系统是否有故障。 该装置还包括用于检测燃料箱中的燃料蒸汽状况的燃料蒸气检测部分和用于改变连续进行吹扫切割的吹扫切割时间段的吹扫切割时间变化部分，吹扫切割时间变化 通过燃料蒸气检测部分响应于检测到的燃料蒸气条件的吹扫切断时间变化部分。

公开(公告)号：US5245973A

公开(公告)日：1993-09-21

申请号：US867148

申请日：1992-04-10

申请人： Takayuki Otsuka ,  Nobuaki Kayanuma

发明人： Takayuki Otsuka ,  Nobuaki Kayanuma

IPC分类号： F02D41/00 ,  F02M25/08

CPC分类号： F02M25/0854 ,  F02M25/0809 ,  F02M25/08

摘要： A failure detection device that detects a failure occurring in an evaporative fuel purge system by detecting the pressure inside a vapor passage and a purge passage. The vapor passage and the purge passage are connected via a bypass passage. A pressure sensor is connected to either the vapor passage or the purge passage. An engine control unit is provided which judges that a failure has occurred in the evaporative fuel purge system when the pressure sensor detects a pressure equal to or higher than the predetermined pressure.

摘要翻译： 一种故障检测装置，其通过检测蒸汽通道和净化通道内的压力来检测在蒸发燃料净化系统中发生的故障。 蒸汽通道和净化通道经旁通通道连接。 压力传感器连接到蒸气通道或净化通道。 提供一种发动机控制单元，当压力传感器检测到等于或高于预定压力的压力时，判定在蒸发燃料净化系统中发生故障。

公开(公告)号：US5203870A

公开(公告)日：1993-04-20

申请号：US721687

申请日：1991-06-26

申请人： Nobuaki Kayanuma ,  Kenichi Uchida ,  Takayuki Otsuka

发明人： Nobuaki Kayanuma ,  Kenichi Uchida ,  Takayuki Otsuka

IPC分类号： F02M25/08

CPC分类号： F02M25/0809 ,  F02M2025/0845

摘要： In an evaporative emission-control system having a canister for trapping a fuel-vapor evaporated from the fuel tank and a purge control valve for executing a purging, an amount of fuel-vapor trapped in the canister is measured while the engine is stopped or in an idle state. The trapped fuel-vapor is purged from the canister and mixed with an air-fuel mixture when the amount of fuel-vapor trapped in the canister is sufficient for diagnosis while the vehicle is running in a predetermined driving condition. In this purge operation, a concentration of a vapor-laden air from the canister is measured and the occurrence of an abnormal state of the evaporative emission-control system is determined when a change of the concentration of the vapor-laden air after the purging is less than a predetermined value.

摘要翻译： 在具有用于捕集从燃料箱蒸发的燃料蒸汽的罐的蒸发排放控制系统和用于执行清洗的清除控制阀的情况下，在发动机停止时或者在发动机停止时测量捕集在罐中的燃料 - 蒸汽的量 空闲状态。 当车辆在预定的行驶状态下行驶时，捕集在罐中的燃料 - 蒸汽的量足以用于诊断时，将捕获的燃料蒸气从罐中吹扫并与空气 - 燃料混合物混合。 在这种吹扫操作中，测量来自罐的蒸气的空气的浓度，并且当吹扫之后的蒸汽负载的空气的浓度的变化是蒸发排放控制系统的异常状态时，确定发生异常状态 小于预定值。

公开(公告)号：US5313925A

公开(公告)日：1994-05-24

申请号：US62351

申请日：1993-05-13

申请人： Takayuki Otsuka ,  Nobuaki Kayanuma ,  Kouichi Osawa ,  Hironori Okamizu ,  Chikao Kunimasa

发明人： Takayuki Otsuka ,  Nobuaki Kayanuma ,  Kouichi Osawa ,  Hironori Okamizu ,  Chikao Kunimasa

IPC分类号： F02B75/02 ,  F02D41/00 ,  F02D41/22 ,  F02M25/08 ,  F02M37/04

CPC分类号： F02M25/0809 ,  F02B2075/027

摘要： A malfunction detection apparatus for detecting a malfunction in an evaporated fuel purge system in which fuel vapor from a fuel tank is adsorbed in an adsorbent in a canister and the adsorbed fuel vapor in the adsorbent is purged into an intake passage of an engine. The apparatus includes a detection part for detecting a concentration of fuel in the fuel vapor purged into the intake passage so that a change in the detected fuel concentration from a time when a purge cutting is performed to a time when a purging is performed after the purge cutting has been performed is detected, and a discrimination part for determining whether there is a malfunction in the system on the basis of the change in the detected fuel concentration by the detection part. The apparatus also includes a fuel vapor detection part for detecting a condition of fuel vapor in the fuel tank, and a purge cut time varying part for varying a purge cut time period for which the purge cutting is continuously performed, the purge cut time being varied by the purge cut time varying part in response to the detected fuel vapor condition by the fuel vapor detection part.

摘要翻译： 一种故障检测装置，用于检测蒸发燃料净化系统中的故障，其中来自燃料箱的燃料蒸汽被吸附在罐中的吸附剂中，并且吸附剂中的吸附的燃料蒸气被吹扫到发动机的进气通道中。 该装置包括检测部分，用于检测清除进入通道中的燃料蒸汽中的燃料浓度，使得从进行吹扫切割时到检测到的净化之后进行清洗时的检测燃料浓度的变化 检测到已经进行了切割，以及判别部，其基于检测部的检测燃料浓度的变化来判定系统是否有故障。 该装置还包括用于检测燃料箱中的燃料蒸汽状况的燃料蒸气检测部分和用于改变连续进行吹扫切割的吹扫切割时间段的吹扫切割时间变化部分，吹扫切割时间变化 通过燃料蒸气检测部分响应于检测到的燃料蒸气条件的吹扫切断时间变化部分。

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：US5181499A

公开(公告)日：1993-01-26

申请号：US842425

申请日：1992-02-27

申请人： Nobuaki Kayanuma

发明人： Nobuaki Kayanuma

IPC分类号： F02D41/14 ,  F02D41/22

CPC分类号： F02D41/22 ,  F02D41/1479 ,  F02D41/1495

摘要： In an apparatus for diagnosing an abnormality in a fuel injection system in which an injection quantity is feedback-controlled by adjusting a first air-fuel ratio correction value so that an air-fuel ratio is equal to a target air-fuel ratio. The injection quantity is also adjusted by a second air-fuel ratio correction value. When the first air-fuel ratio correction value has reached a first upper limit value, the second air-fuel ratio correction value is set to a second upper limit value. When the first air-fuel ratio correction value has reached a second lower limit value, the second air-fuel ratio correction value is set to a second lower limit value. When the first air-fuel ratio correction value is outside of a predetermined range when a predetermined time has elapsed after the second air-fuel ratio correction value is set to either the second upper limit value or the second lower limit value, it is determined that a fault has occured in the fuel injection system.

摘要翻译： 在用于诊断燃料喷射系统中的异常的装置中，其中通过调节第一空气燃料比校正值来反馈控制喷射量，使得空燃比等于目标空燃比。 喷射量也通过第二空燃比校正值进行调节。 当第一空燃比校正值达到第一上限值时，将第二空燃比校正值设定为第二上限值。 当第一空燃比校正值达到第二下限值时，将第二空燃比校正值设定为第二下限值。 当第二空燃比校正值在第二空燃比校正值被设定为第二上限值或第二下限值之后经过预定时间时，当第一空燃比校正值超出预定范围时，确定 燃油喷射系统发生故障。

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：US4667636A

公开(公告)日：1987-05-26

申请号：US840755

申请日：1986-03-18

申请人： Kiyohiko Oishi ,  Kiyoshi Nakanishi ,  Nobuaki Kayanuma ,  Taiyo Kawai ,  Norihisa Nakagawa ,  Hiroshi Nomura

发明人： Kiyohiko Oishi ,  Kiyoshi Nakanishi ,  Nobuaki Kayanuma ,  Taiyo Kawai ,  Norihisa Nakagawa ,  Hiroshi Nomura

IPC分类号： F01L1/26 ,  F02B1/04 ,  F02B17/00 ,  F02B23/08 ,  F02B31/08 ,  F02D11/08 ,  F02D41/00 ,  F02D41/30 ,  F02D41/34 ,  F02D41/36 ,  F02D43/00 ,  F02F1/24 ,  F02F1/42 ,  F02B15/00

CPC分类号： F02F1/4221 ,  F01L1/265 ,  F02B17/00 ,  F02B23/08 ,  F02B31/087 ,  F02D11/08 ,  F02D41/0002 ,  F02D41/0087 ,  F02D41/3023 ,  F02D41/345 ,  F02D43/00 ,  F02F1/4214 ,  F02B1/04 ,  F02B2275/18 ,  F02F2001/245 ,  Y02T10/125 ,  Y02T10/146 ,  Y02T10/42 ,  Y02T10/44

摘要： An internal combustion engine comprising three intake valves. The first intake valve and the second intake valve open at a crank angle near to the top dead center of the intake stroke. The third intake valve opens approximately at the center of the intake stroke. An air control valve is arranged in the second intake passage connected to the combustion chamber via the second intake valve. The air control valve is closed when the engine is operating under a partial load. A fuel injector is arranged in the third intake passage connected to the combustion chamber via the third intake valve. The injecting operation of the fuel injector is stopped during the intake stroke.

摘要翻译： 一种内燃机，包括三个进气门。 第一进气门和第二进气门以接近进气冲程的上止点的曲柄角打开。 第三进气门大致在进气冲程的中心处打开。 在通过第二进气阀连接到燃烧室的第二进气通道中布置有空气控制阀。 当发动机在部分负载下运行时，空气控制阀关闭。 燃料喷射器布置在经由第三进气阀连接到燃烧室的第三进气通道中。 在进气冲程期间停止燃料喷射器的喷射操作。

公开(公告)号：US4570590A

公开(公告)日：1986-02-18

申请号：US707872

申请日：1985-03-04

申请人： Taiyo Kawai ,  Norihisa Nakagawa ,  Nobuaki Kayanuma ,  Toshinari Nagai

发明人： Taiyo Kawai ,  Norihisa Nakagawa ,  Nobuaki Kayanuma ,  Toshinari Nagai

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。