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：US5282383A

公开(公告)日：1994-02-01

申请号：US872249

申请日：1992-04-22

申请人： Nobuaki Kayanuma

发明人： Nobuaki Kayanuma

IPC分类号： F01N3/20 ,  F01N11/00 ,  F02D41/14 ,  G01M19/00

CPC分类号： F02D41/1441 ,  F01N11/007 ,  F01N2550/02 ,  F01N2900/0421 ,  F01N2900/0422 ,  Y02T10/47

摘要： In a double air-fuel ratio sensor system including two air-fuel ratio sensors disposed on the upstream and the downstream of the catalyst which is installed in the exhaust passage of the engine and has oxygen storage effect, an air-fuel ratio correction amount is calculated in accordance with the output of the upstream O.sub.2 sensor, and the actual air-fuel ratio is adjusted in accordance with the calculated air-fuel ratio correction amount. Further, the determination of the deterioration of the catalyst is carried out in accordance with the output of the second O.sub.2 sensor when the air-fuel ratio of the engine is adjusted.

摘要翻译： 在双重空燃比传感器系统中，包括设置在催化剂的上游和下游的两个空燃比传感器，其安装在发动机的排气通道中并具有储氧效果，空燃比校正量为 根据上游O2传感器的输出计算，并且根据计算出的空燃比校正量来调整实际空燃比。 此外，当调节发动机的空燃比时，根据第二O2传感器的输出，进行催化剂劣化的确定。

公开(公告)号：US5245865A

公开(公告)日：1993-09-21

申请号：US837237

申请日：1992-02-14

申请人： Nobuaki Kayanuma

发明人： Nobuaki Kayanuma

IPC分类号： F02D45/00 ,  F02B3/06 ,  G01M15/11

CPC分类号： G01M15/11 ,  F02B3/06

摘要： A rotor with outer teeth is fixed to a crankshaft, a crank angle sensor is disposed facing the outer teeth of the rotor, and the angular velocity of the crankshaft in the power stroke of the cylinders is found from the output pulses of the crank angle sensor. In this case, if the ignition sequence is 1-3-4-2, the angular velocities of the crankshaft for the no. 1 cylinder #1 and the no. 4 cylinder #4 are calculated from the output pulses generated based on the outer teeth of the same region I, while the angular velocities of the crankshaft for the no. 3 cylinder #3 and the no. 2 cylinder #2 are calculated from the output pulses generated based on the outer teeth of the same region II. Therefore, even if there is a manufacturing error in the outer teeth of the region I, so long as no misfire occurs, the angular velocities of the crankshaft will be the same for the no. 1 cylinder #1 and the no. 4 cylinder #4. As opposed to this, if a misfire occurs at the no. 1 cylinder #1, the angular velocity of the crankshaft at the power stroke of the no. 1 cylinder #1 will become slower than the angular velocity of the crankshaft at the power stroke of the no. 4 cylinder #4 and therefore it can be detected that the no. 1 cylinder #1 has misfired.

摘要翻译： 具有外齿的转子固定到曲轴上，曲柄角传感器被设置成面对转子的外齿，并且曲轴转角传感器的曲轴转角的角速度是从曲轴转角传感器的输出脉冲 。 在这种情况下，如果点火顺序为1-3-4-2，曲轴的角速度为no。 1缸＃1， 4缸＃4是根据相同区域I的外齿产生的输出脉冲计算的，而曲轴的角速度是相同的。 3缸＃3和no。 2缸＃2由基于相同区域II的外齿产生的输出脉冲计算。 因此，即使在区域I的外齿上存在制造误差，只要不发生失火，曲轴的角速度将相同。 1缸＃1， 4缸＃4。 与此相反，如果发生失火。 1气缸＃1，曲轴在动力冲程时的角速度为零。 1号气缸＃1将变得比曲轴的动力冲程中的曲轴的角速度慢。 4缸＃4，因此可以检测到。 1缸＃1失火。

公开(公告)号：US5207057A

公开(公告)日：1993-05-04

申请号：US882014

申请日：1992-05-13

申请人： Nobuaki Kayanuma

发明人： Nobuaki Kayanuma

IPC分类号： F01N3/22 ,  F01N11/00 ,  F01N13/02 ,  F01N13/04 ,  F02D41/14 ,  F02D41/22

CPC分类号： F01N11/007 ,  F01N13/009 ,  F01N13/011 ,  F02D41/1443 ,  F01N13/107 ,  F01N2550/02 ,  Y02T10/47

摘要： An air-fuel ratio control device for an engine having two or more cylinder groups, such as a V-type engine or a horizontally opposed engine, wherein the air-fuel ratio control device controls the air-fuel ratio of cylinder groups in accordance with the output of upstream air-fuel ratio sensors and a downstream air-fuel ratio sensor. The upstream air-fuel ratio sensors are disposed in the individual exhaust passage connected to the respective cylinders upstream of the catalyst converter. The downstream air-fuel ratio sensor is disposed in the common exhaust passage downstream of the catalyst converter. The air-fuel control device usually controls the air-fuel ratios of individual cylinder groups in accordance with the output of the respective upstream air-fuel ratio sensor. When a determination of whether or not the catalyst converter has deteriorated is required, the air-fuel ratio control device controls the air-fuel ratio of all cylinder groups in accordance with the output of either one of upstream air-fuel ratio sensors, whereby the air fuel ratio of the exhaust gas flow into the catalyst converter is changed at a predetermined frequency (period). In this condition, the air-fuel ratio control device determines whether or not the catalyst converter has deteriorated by comparing the outputs of the upstream air-fuel ratio sensor and the downstream air-fuel ratio sensor.

摘要翻译： 一种用于具有两个或更多个气缸组的发动机的空燃比控制装置，例如V型发动机或水平相对的发动机，其中空燃比控制装置根据气缸组的空燃比控制气缸组的空燃比 上游空燃比传感器的输出和下游空燃比传感器。 上游空燃比传感器设置在与催化剂转化器上游的各个气缸连接的各个排气通道中。 下游空燃比传感器设置在催化转化器下游的公共排气通道中。 空燃控制装置通常根据各上游空燃比传感器的输出来控制各气缸组的空燃比。 当需要确定催化剂转化器是否劣化时，空燃比控制装置根据上游空燃比传感器中的任一个的输出来控制所有气缸组的空燃比，由此， 进入催化剂转换器的废气流的空燃比以预定的频率（周期）改变。 在这种情况下，空燃比控制装置通过比较上游空燃比传感器和下游空燃比传感器的输出来判定催化剂转换器是否劣化。

公开(公告)号：US5143035A

公开(公告)日：1992-09-01

申请号：US777757

申请日：1991-10-10

申请人： Nobuaki Kayanuma

发明人： Nobuaki Kayanuma

IPC分类号： F02B77/08 ,  F02B75/02 ,  F02M25/08

CPC分类号： F02M25/0809 ,  F02M25/08 ,  F02B2075/027 ,  F02M2025/0845

摘要： A malfunction detection apparatus for detecting a malfunction in an evaporated fuel purge system for use in an internal combustion engine. The apparatus includes a vapor passage connecting a fuel tank to a canister for feeding fuel vapor from the fuel tank into the canister, a purge passage connecting the canister to an intake passage of the engine for feeding the fuel vapor adsorbed in an adsorbent in the canister into the intake passage, a purge control valve provided for controlling a flow of the adsorbed fuel vapor in the canister being fed into the intake passage, a pressure sensor provided for outputting a signal indicative of pressure in the vapor passage, and a malfunction detection part responsive to the signal outputted by the pressure sensor for detecting a malfunction in the evaporated fuel purge system.

摘要翻译： 一种用于检测用于内燃机的蒸发燃料净化系统的故障的故障检测装置。 该装置包括将燃料箱连接到罐的蒸汽通道，用于将来自燃料箱的燃料蒸气输送到罐中;净化通道，其将罐连接到发动机的进气通道，用于将吸附在吸附剂中的燃料蒸汽 进入进气通道，设置有用于控制供给到进气通道中的罐中吸附的燃料蒸气的流动的净化控制阀，设置用于输出表示蒸气通道中的压力的​​信号的压力传感器，以及故障检测部 响应于由压力传感器输出的用于检测蒸发燃料净化系统故障的信号。

公开(公告)号：US5088281A

公开(公告)日：1992-02-18

申请号：US381532

申请日：1989-07-18

申请人： Takahide Izutani ,  Nobuaki Kayanuma ,  Michio Furuhashi ,  Yukihiro Sonoda ,  Hiroyuki Sawamoto ,  Kouichi Hoshi ,  Kouichi Osawa ,  Hironori Bessho

发明人： Takahide Izutani ,  Nobuaki Kayanuma ,  Michio Furuhashi ,  Yukihiro Sonoda ,  Hiroyuki Sawamoto ,  Kouichi Hoshi ,  Kouichi Osawa ,  Hironori Bessho

IPC分类号： F01N11/00

CPC分类号： F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  Y02T10/22 ,  Y02T10/47

摘要： In a double air-fuel ratio sensor system having three-way catalysts, a full O.sub.2 storage amount of the three-way catalysts is estimated and compared with a predetermined amount. When the estimated full O.sub.2 storage amount is smaller than the predetermined amount, the three-way catalysts are determined to have deteriorated.

摘要翻译： 在具有三元催化剂的双重空燃比传感器系统中，估计三元催化剂的全部O 2储存量并与预定量进行比较。 当估计的全部氧气存储量小于预定量时，确定三元催化剂已劣化。

公开(公告)号：US4809501A

公开(公告)日：1989-03-07

申请号：US144221

申请日：1988-01-15

申请人： Nobuaki Kayanuma ,  Toshinari Nagai

发明人： Nobuaki Kayanuma ,  Toshinari Nagai

IPC分类号： F02D41/14

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 calculated in accordance with the results of the comparison of the outputs of the upstream-side and downstream-side air-fuel ratio sensors with first and second reference voltages, respectively, thereby obtaining an actual air-fuel ratio. The second reference voltage is changed in accordance with the load of the engine, to change the mean air-fuel ratio.

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，根据比较输出的结果计算空燃比校正量 上游侧和下游侧空燃比传感器分别具有第一和第二参考电压，从而获得实际的空燃比。 第二参考电压根据发动机的负载而改变，以改变平均空燃比。

公开(公告)号：US4351296A

公开(公告)日：1982-09-28

申请号：US150629

申请日：1980-05-16

申请人： Nobuaki Kayanuma

发明人： Nobuaki Kayanuma

IPC分类号： F02P5/10 ,  F02D9/02 ,  F02D11/06 ,  F02D37/00 ,  F02D43/00 ,  F02P5/04

CPC分类号： F02P5/04

摘要： A throttle positioning system is provided for holding a throttle valve at a position slightly more open than at the normal idling position, and an idle vacuum advance mechanism is provided for advancing the ignition timing when the throttle valve is at a position less than a predetermined opening degree. The idle vacuum advance mechanism is disabled from advancing the ignition timing when the throttle positioning system is operating.

摘要翻译： 提供了一种节气门定位系统，用于将节气门保持在比正常怠速位置稍微更开放的位置处，并且提供空转真空提前机构用于当节气门处于小于预定开度的位置时提前点火正时 度。 当节气门定位系统运行时，空转真空提前机构禁止提前点火正时。