公开(公告)号：US20110320171A1

公开(公告)日：2011-12-29

申请号：US13201196

申请日：2010-03-11

申请人： Tatsuya Okayama ,  Masanobu Miki ,  Keizo Iwama ,  Hidetaka Ozawa ,  Makoto Hattori ,  Ken Kurahashi ,  Koichi Saiki ,  Kojiro Tsutsumi

发明人： Tatsuya Okayama ,  Masanobu Miki ,  Keizo Iwama ,  Hidetaka Ozawa ,  Makoto Hattori ,  Ken Kurahashi ,  Koichi Saiki ,  Kojiro Tsutsumi

IPC分类号： G06F15/00

CPC分类号： B01D46/2403 ,  B01D46/0086 ,  B01D46/2418 ,  B01D46/42 ,  B01D2279/30 ,  F01N11/00 ,  F01N2550/04 ,  F01N2560/05 ,  F01N2560/20 ,  F02D41/1466 ,  G01N15/0656

摘要： Provided is a DPF failure detection device not only capable of a quick detection but also having less erroneous and a small power consumption. The DPF failure detection device, after starting applying a dust collecting voltage to a dust collecting electrode, applies a measuring voltage to a measuring electrode while the dust collection voltage is being applied, thereby measuring the capacitance of a sensor device. The DPF failure detection device also stops applying the dust collecting voltage to the dust collecting electrode in response to the fact that the measured value (CCOL) of this capacitance exceeds a completion criterion (CCOL—TH). Further, the DPF failure detection device applies the measuring voltage to the measuring electrode, thereby measuring the capacitance of the sensor device and obtaining a measured value (CPM), on the basis of which a DPF failure is determined.

摘要翻译： 提供了一种DPF故障检测装置，其不仅能够快速检测，而且具有较少的错误和小的功率消耗。 DPF故障检测装置在开始对集尘电极施加集尘电压之后，在施加集尘电压的同时向测量电极施加测量电压，由此测量传感器装置的电容。 响应于该电容的测量值（CCOL）超过完成标准（CCOL-TH）的事实，DPF故障检测装置还停止对集尘电极施加集尘电压。 此外，DPF故障检测装置将测量电压施加到测量电极，从而测量传感器装置的电容并获得测量值（CPM），基于此确定DPF故障。

公开(公告)号：US08694226B2

公开(公告)日：2014-04-08

申请号：US13103944

申请日：2011-05-09

申请人： Ken Kurahashi ,  Yukio Noda ,  Koichi Saiki

发明人： Ken Kurahashi ,  Yukio Noda ,  Koichi Saiki

IPC分类号： F02D11/00 ,  F02D41/00

CPC分类号： F02D41/0085 ,  F02D41/1445 ,  F02D41/1454 ,  F02D41/1482 ,  F02D41/1497 ,  F02D41/18 ,  F02D41/22 ,  F02D41/222 ,  F02D41/2441 ,  F02D41/2474 ,  F02D2041/1432 ,  F02D2041/228 ,  F02D2200/101 ,  F02D2200/703 ,  Y02T10/40

摘要： A control apparatus for an internal-combustion engine includes a diagnosis device. The diagnosis device includes a determination section and an exhaust flow rate calculator configured to calculate an exhaust flow rate that reflects a volume flow amount of exhaust gas. A filter is configured to filter a signal representing an air-fuel ratio so that a 0.5th-order frequency component of engine speed is extracted from the signal. An integrator is configured to accumulate a filtered signal for a predetermined period of time to compute an integration value. A corrector is configured to correct the integration value to compute a corrected integration value each time the integration value is computed by the integrator. The determination section is configured to determine that cylinder-to-cylinder air-fuel ratio imbalance occurs in cylinders if the corrected integration value is greater than a predetermined threshold value after the predetermined period of time has elapsed.

摘要翻译： 内燃机的控制装置具有诊断装置。 诊断装置包括：判定部和排气流量计算器，被配置为计算反映废气的体积流量的排气流量。 滤波器被配置为对表示空燃比的信号进行滤波，从而从信号中提取出发动机转速的0.5次频率分量。 积分器被配置为在预定时间段内累积经滤波的信号以计算积分值。 校正器被配置为每当积分器计算积分值时校正积分值以计算校正积分值。 如果在经过了预定时间段之后校正积分值大于预定阈值，则确定部分被配置为确定气缸与气缸之间的空燃比不平衡发生。

公开(公告)号：US20080089226A1

公开(公告)日：2008-04-17

申请号：US11905376

申请日：2007-09-28

申请人： Youichi Konuma ,  Koichi Saiki ,  Junichi Shimada ,  Akira Miyasaka

发明人： Youichi Konuma ,  Koichi Saiki ,  Junichi Shimada ,  Akira Miyasaka

IPC分类号： G06F11/00 ,  G01R31/08

CPC分类号： H04L49/351 ,  H04L49/552 ,  H04L69/14 ,  H04L69/40 ,  Y02D50/30

摘要： A transmission device is connected to a layer 2 switch through a transmission path at one side, and to a relay transmission path at the other side. The transmission path includes a transmission path of a active system and a transmission path of a stand-by system. When failure occurs in the transmission path of the active system, the transmission device forcibly shuts down the transmission path of the active system upon detection of link down, to stop packet transmission, and causes the layer 2 switch to perform MAC address flush. The transmission device then switches the transmission path of the stand-by system to the active system, and transmits packets through the transmission path that has become the active system as a result of switching. The layer 2 switch performs MAC address learning to set a port, thereby maintaining communication even after occurrence of the failure.

摘要翻译： 传输设备通过一侧的传输路径和另一侧的中继传输路径连接到层2交换机。 传输路径包括有源系统的传输路径和备用系统的传输路径。 当主动系统的传输路径发生故障时，传输设备在检测到链路断开后强制关闭主用系统的传输路径，停止数据包传输，使第二层交换机执行MAC地址冲洗。 然后，发送装置将待机系统的传输路径切换到主动系统，并且作为切换的结果，通过已经成为主动系统的传输路径发送分组。 层2交换机执行MAC地址学习来设置端口，从而即使在发生故障后仍保持通信。

公开(公告)号：US5642156A

公开(公告)日：1997-06-24

申请号：US585291

申请日：1996-01-11

申请人： Koichi Saiki

发明人： Koichi Saiki

IPC分类号： H04N7/15 ,  H04M3/56

CPC分类号： H04N7/15

摘要： A video-conference network managing system manages a video-conference network, the video-conference network comprising a plurality of video-conference terminal apparatuses connected with one another via a network so as to enable a video conference to be held. The managing system comprises a site managing unit for managing each video-conference terminal apparatus of the plurality of video-conference terminal apparatuses. The system further comprises a schedule managing unit for managing a schedule concerning the video conference. The system further comprises a transmitting/reception control unit for sending, if appropriate, a command to the plurality of video-conference terminal apparatuses in accordance with the schedule concerning the video conference. The system further comprises an alarm collecting unit for collecting alarm information, if any, from the plurality of video-conference terminal apparatuses.

摘要翻译： 视频会议网络管理系统管理视频会议网络，视频会议网络包括经由网络彼此连接的多个视频会议终端设备，以便能够保持视频会议。 管理系统包括一个站点管理单元，用于管理多个视频会议终端设备的每个视频会议终端设备。 该系统还包括用于管理有关视频会议的进度的日程管理单元。 该系统还包括发送/接收控制单元，用于根据关于视频会议的时间表向多个视频会议终端设备发送命令（如果适用）。 该系统还包括用于从多个视频会议终端装置收集警报信息（如果有的话）的报警收集单元。

公开(公告)号：US07522525B2

公开(公告)日：2009-04-21

申请号：US11077303

申请日：2005-03-10

申请人： Hironori Mieno ,  Youichi Konuma ,  Jyunichi Shimada ,  Koichi Saiki ,  Takashi Okuda ,  Takanori Sasaki

发明人： Hironori Mieno ,  Youichi Konuma ,  Jyunichi Shimada ,  Koichi Saiki ,  Takashi Okuda ,  Takanori Sasaki

IPC分类号： G01R31/08 ,  H04L12/28

CPC分类号： H04L12/465

摘要： In an L2 switch having a VLAN function for configuring a layer 2 network in a star topology, a mesh topology, a ring topology, or the like, a VLAN functional portion maps a frame to a predetermined VLAN, a frame classifying portion assigns to the frame a first tag indicating a priority, and a policing portion assigns to the frame a second tag indicating whether or not the frame can be discarded. Also, an OAM monitor inserts a monitoring frame to the VLAN.

摘要翻译： 在具有VLAN功能的L2交换机中，用于配置星型拓扑中的二层网络，网状拓扑，环形拓扑等，VLAN功能部分将帧映射到预定VLAN，帧分类部分分配给 构成指示优先级的第一标签，并且监管部分向该帧分配指示该帧是否可以被丢弃的第二标签。 另外，OAM监视器将监控帧插入VLAN。

公开(公告)号：US20050213512A1

公开(公告)日：2005-09-29

申请号：US10972763

申请日：2004-10-25

申请人： Yoichi Konuma ,  Koichi Saiki ,  Takashi Fukagawa ,  Masashige Kawarai

发明人： Yoichi Konuma ,  Koichi Saiki ,  Takashi Fukagawa ,  Masashige Kawarai

IPC分类号： H04L12/28 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/413 ,  H04L12/46 ,  H04L12/66 ,  H04L29/08 ,  H04L29/10

CPC分类号： H04L12/40136

摘要： A network device provided with an Ethernet interface for interconnecting with another network device by auto negotiation, the network device comprising a link establishing function unit compulsorily establishing a link with the other network device and an on/off setting function unit setting the function of the link establishing function unit on or off and the link establishing function unit being comprised of a data transmission suppressing unit for suppressing the transmission of user data to the other network device until the sequence based on the auto negotiation is finished, whereby the problem of connectivity where the sequence of the auto negotiation repeats and no link can be established is solved.

摘要翻译： 一种网络设备，其具有用于通过自动协商与另一网络设备互连的以太网接口，所述网络设备包括链路建立功能单元，强制建立与所述另一网络设备的链路;以及开/关设置功能单元，设置所述链路的功能 建立功能单元打开或关闭，并且链路建立功能单元包括数据发送抑制单元，用于抑制用户数据向另一网络设备的传输，直到完成基于自动协商的顺序，由此连接的问题 自动协商序列重复，无链路建立得到解决。

公开(公告)号：US6029641A

公开(公告)日：2000-02-29

申请号：US919336

申请日：1997-08-28

申请人： Norio Suzuki ,  Koichi Saiki

发明人： Norio Suzuki ,  Koichi Saiki

IPC分类号： G01N27/41 ,  F02D41/04 ,  F02D41/06 ,  F02D41/14 ,  F02D45/00 ,  G01N27/409

CPC分类号： F02D41/1456 ,  F02D41/1402 ,  F02D2041/1409 ,  F02D2041/1416 ,  F02D2041/1433

摘要： An air-fuel ratio control system for an internal combustion engine includes an air-fuel ratio sensor arranged in the exhaust system of the engine. An ECU determines activation of the air-fuel ratio sensor and carries out feedback control of the air-fuel ratio of a mixture supplied to the engine in response to the output from the air-fuel ratio sensor. An intermediate state of the air-fuel ratio sensor corresponding to a transient state of the air-fuel ratio sensor from an inactive state thereof to an active state thereof is determined. The output from the air-fuel ratio sensor for use in execution of the feedback control is corrected when the air-fuel ratio sensor is in the intermediate state.

摘要翻译： 用于内燃机的空燃比控制系统包括布置在发动机的排气系统中的空燃比传感器。 ECU确定空燃比传感器的启动，并响应于空燃比传感器的输出，对提供给发动机的混合物的空燃比进行反馈控制。 确定对应于空燃比传感器从其无效状态到其活动状态的过渡状态的空燃比传感器的中间状态。 当空燃比传感器处于中间状态时，校正用于执行反馈控制的空燃比传感器的输出。

公开(公告)号：US5869744A

公开(公告)日：1999-02-09

申请号：US953726

申请日：1997-10-17

申请人： Norio Suzuki ,  Daisuke Shimizu ,  Koichi Saiki ,  Yukio Noda

发明人： Norio Suzuki ,  Daisuke Shimizu ,  Koichi Saiki ,  Yukio Noda

IPC分类号： G01N27/407 ,  G01N27/41

CPC分类号： G01N27/407

摘要： An oxygen concentration-detecting device detects the concentration of oxygen present in exhaust gases emitted from an internal combustion engine. The device includes an oxygen sensor of a limit current type. A heater heats the oxygen sensor. A first voltage is applied to the oxygen sensor and the concentration of oxygen is detected based on a first output current from the oxygen sensor obtained when the first voltage is applied to the oxygen sensor. A second voltage is applied to the oxygen sensor at a first repetition period and the internal resistance of the oxygen sensor is detected based on a second output current from the oxygen sensor obtained when the second voltage is applied to the oxygen sensor. The oxygen sensor is heated by the heater based on the internal resistance of the oxygen sensor detected. Values of the concentration of oxygen are sampled based on the first output current from the oxygen sensor at a second repetition period shorter than the first repetition period and the sampled values of the concentration of oxygen are stored. The concentration of oxygen is estimated based on the sampled values of the concentration of oxygen stored. In another form of the invention, a predetermined repetition period (first repetition period) at which the second voltage is applied is set in dependence on operating conditions of the engine.

摘要翻译： 氧浓度检测装置检测从内燃机排出的废气中存在的氧浓度。 该装置包括极限电流型氧传感器。 加热器加热氧气传感器。 第一电压被施加到氧传感器，并且基于当将第一电压施加到氧传感器时获得的氧传感器的第一输出电流来检测氧的浓度。 在第一重复周期将氧传感器施加第二电压，并且基于当将第二电压施加到氧传感器时获得的氧传感器的第二输出电流来检测氧传感器的内阻。 氧传感器由加热器基于检测到的氧传感器的内阻加热。 基于来自氧传感器的第一输出电流以比第一重复周期短的第二重复周期对氧气的浓度进行取样，并且存储氧气浓度的采样值。 氧气的浓度基于存储的氧浓度的采样值来估计。 在本发明的另一形式中，根据发动机的运行条件来设定施加第二电压的预定重复周期（第一重复周期）。

公开(公告)号：US07529248B2

公开(公告)日：2009-05-05

申请号：US10972763

申请日：2004-10-25

申请人： Yoichi Konuma ,  Koichi Saiki ,  Takashi Fukagawa ,  Masashige Kawarai

发明人： Yoichi Konuma ,  Koichi Saiki ,  Takashi Fukagawa ,  Masashige Kawarai

IPC分类号： H04L12/28 ,  H04L12/56 ,  G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  G06F15/16

CPC分类号： H04L12/40136

摘要： A network device provided with an Ethernet interface for interconnecting with another network device by auto negotiation, the network device comprising a link establishing function unit compulsorily establishing a link with the other network device and an on/off setting function unit setting the function of the link establishing function unit on or off and the link establishing function unit being comprised of a data transmission suppressing unit for suppressing the transmission of user data to the other network device until the sequence based on the auto negotiation is finished, whereby the problem of connectivity where the sequence of the auto negotiation repeats and no link can be established is solved.

摘要翻译： 一种网络设备，其具有用于通过自动协商与另一网络设备互连的以太网接口，所述网络设备包括链路建立功能单元，强制建立与所述另一网络设备的链路;以及开/关设置功能单元，设置所述链路的功能 建立功能单元打开或关闭，并且链路建立功能单元包括数据发送抑制单元，用于抑制用户数据向另一网络设备的传输，直到完成基于自动协商的顺序，由此连接的问题 自动协商序列重复，无链路建立得到解决。

公开(公告)号：US20050163132A1

公开(公告)日：2005-07-28

申请号：US11077303

申请日：2005-03-10

申请人： Hironori Mieno ,  Youichi Konuma ,  Jyunichi Shimada ,  Koichi Saiki ,  Takashi Okuda ,  Takanori Sasaki

发明人： Hironori Mieno ,  Youichi Konuma ,  Jyunichi Shimada ,  Koichi Saiki ,  Takashi Okuda ,  Takanori Sasaki

IPC分类号： H04L12/44 ,  H04L12/46 ,  H04L12/56

CPC分类号： H04L12/465

摘要： In an L2 switch having a VLAN function for configuring a layer 2 network in a star topology, a mesh topology, a ring topology, or the like, a VLAN functional portion maps a frame to a predetermined VLAN, a frame classifying portion assigns to the frame a first tag indicating a priority, and a policing portion assigns to the frame a second tag indicating whether or not the frame can be discarded. Also, an OAM monitor inserts a monitoring frame to the VLAN.

摘要翻译： 在具有VLAN功能的L2交换机中，用于配置星型拓扑中的二层网络，网状拓扑，环形拓扑等，VLAN功能部分将帧映射到预定VLAN，帧分类部分分配给 构成指示优先级的第一标签，并且监管部分向该帧分配指示该帧是否可以被丢弃的第二标签。 另外，OAM监视器将监控帧插入VLAN。