公开(公告)号：US06799420B2

公开(公告)日：2004-10-05

申请号：US10268975

申请日：2002-10-11

申请人： Masaki Ueno ,  Tetsuo Endo ,  Hideharu Yamazaki ,  Shiro Takakura ,  Kei Machida ,  Yasuyuki Miyahara ,  Tadashi Sato

发明人： Masaki Ueno ,  Tetsuo Endo ,  Hideharu Yamazaki ,  Shiro Takakura ,  Kei Machida ,  Yasuyuki Miyahara ,  Tadashi Sato

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  B01D53/0454 ,  B01D53/9495 ,  F01N3/0814 ,  F01N3/0878 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/028 ,  Y02T10/47

摘要： A temperature sensor is disposed near an HC adsorbent in an exhaust system of an internal combustion engine. After the internal combustion engine is shut off, a deteriorated state of the HC adsorbent is evaluated based on a value of the humidity detected by a humidity sensor. The deteriorated state of the HC adsorbent is evaluated by comparing the detected value of the humidity with a threshold established depending on the temperature state near the HC adsorbent. In evaluating deteriorated state of the HC adsorbent, a change in the output characteristics of the humidity sensor depending on its temperature state is compensated for.

摘要翻译： 温度传感器设置在内燃机的排气系统内的HC吸附剂附近。 在关闭内燃机之后，基于由湿度传感器检测到的湿度的值来评价HC吸附剂的劣化状态。 通过将检测到的湿度值与根据HC吸附剂附近的温度状态建立的阈值进行比较来评价HC吸附剂的劣化状态。 在评估HC吸附剂的劣化状态时，补偿根据其温度状态的湿度传感器的输出特性的变化。

公开(公告)号：US06923849B2

公开(公告)日：2005-08-02

申请号：US10608156

申请日：2003-06-30

申请人： Masaki Ueno ,  Hideharu Yamazaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tetsuo Endo

发明人： Masaki Ueno ,  Hideharu Yamazaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tetsuo Endo

IPC分类号： F02D45/00 ,  B01D53/04 ,  F01N3/08 ,  F01N3/18 ,  F01N3/20 ,  F01N3/24

CPC分类号： B01D53/0454 ,  Y10S55/30

摘要： A hydrocarbon adsorbent state determining apparatus is provided for compensating the ability of a hydrocarbon adsorbent to adsorb moisture for fluctuations due to a change in the flow velocity of exhaust gases to accurately determine the state of the hydrocarbon adsorbent, including a deterioration thereof, irrespective of the change in the flow rate of exhaust gases. The hydrocarbon adsorbent state determining apparatus determines the state of a hydrocarbon adsorbent disposed in an exhaust system of an internal combustion engine for adsorbing hydrocarbons and moisture within exhaust gases. The hydrocarbon adsorbent state determining apparatus comprises a downstream humidity sensor for detecting the humidity of exhaust gases which have passed through the hydrocarbon adsorbent, a flow velocity parameter detector for detecting a flow velocity parameter indicative of a flow velocity of the exhaust gases, and an ECU for determining the state of the hydrocarbon adsorbent in accordance with the detected humidity of the exhaust gases and the flow velocity parameter.

摘要翻译： 提供一种烃吸附剂状态确定装置，用于补偿烃吸附剂由于废气流速的变化而吸收水分的能力，从而准确地确定烃吸附剂的状态，包括其劣化，而不管 废气流量的变化。 碳氢化合物吸附剂状态决定装置确定在内燃机的排气系统中设置的用于吸附废气中的碳氢化合物和水分的烃类吸附剂的状态。 碳氢化合物吸附剂状态确定装置包括用于检测通过烃类吸附剂的废气湿度的下游湿度传感器，用于检测表示废气流速的流速参数的流速参数检测器，以及ECU 用于根据检测到的废气湿度和流速参数确定烃类吸附剂的状态。

公开(公告)号：US06641303B2

公开(公告)日：2003-11-04

申请号：US10231241

申请日：2002-08-30

申请人： Hideharu Yamazaki ,  Tadashi Sato ,  Takashi Haga ,  Yasuyuki Miyahara ,  Masaki Ueno ,  Kei Machida

发明人： Hideharu Yamazaki ,  Tadashi Sato ,  Takashi Haga ,  Yasuyuki Miyahara ,  Masaki Ueno ,  Kei Machida

IPC分类号： G01K1300

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/2053 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/028 ,  F01N2900/0422 ,  F02D41/1444 ,  F02D41/1456 ,  F02D41/1494 ,  F02D41/222 ,  F02D2200/0418 ,  G01N27/121 ,  Y02T10/40 ,  Y02T10/47

摘要： There is provided a temperature control system for a humidity sensor, which is capable of eliminating impurities attached to a sensor element of the sensor efficiently and sufficiently while preventing the sensor element from being cracked due to heat generated by a heater in a state of condensation formed thereon, and suppressing attachment of impurities to the sensor element, thereby making it possible to preserve an excellent detection accuracy of the humidity sensor. The temperature control system controls the temperature of the sensor element of the humidity sensor arranged in an exhaust pipe for detecting humidity within the exhaust pipe. A heater heats the sensor element. The temperature of the sensor element is detected. When the detected temperature of the sensor element is higher than a predetermined temperature, said heater is operated.

摘要翻译： 提供了一种用于湿度传感器的温度控制系统，其能够有效且充分地消除附着在传感器元件上的杂质，同时防止传感器元件由于在冷凝状态下由加热器产生的热而破裂 并且抑制杂质与传感器元件的附着，从而能够保持湿度传感器的良好的检测精度。 温度控制系统控制布置在用于检测排气管内的湿度的排气管中的湿度传感器的传感器元件的温度。 加热器加热传感器元件。 检测传感器元件的温度。 当传感器元件的检测温度高于预定温度时，操作所述加热器。

公开(公告)号：US06820413B2

公开(公告)日：2004-11-23

申请号：US10235815

申请日：2002-09-06

申请人： Masaki Ueno ,  Yoshihisa Iwaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tadashi Sato

发明人： Masaki Ueno ,  Yoshihisa Iwaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tadashi Sato

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/101 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0093 ,  F01N2550/03 ,  F02D41/0245 ,  F02D41/1446 ,  F02D41/1495 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0418 ,  F02P5/1506 ,  Y02T10/22 ,  Y02T10/26 ,  Y02T10/46 ,  Y02T10/47

摘要： A state determining apparatus for an exhaust gas purifier is provided for accurately determining the state of the exhaust gas purifier including an adsorbent for adsorbing hydrocarbons, including a deterioration of the adsorbent, in accordance with an ignition time of an internal combustion engine. The state determining apparatus for an exhaust gas purifier is arranged in an exhaust system of the internal combustion engine for determining the state of the exhaust gas purifier including the adsorbent capable of adsorbing hydrocarbons and moisture in exhaust gas. The state determining apparatus has a humidity sensor arranged at a location downstream of the adsorbent in the exhaust system for detecting the humidity of exhaust gases, and an ECU for determining the state of the adsorbent in accordance with the humidity of exhaust gases detected by the humidity sensor, and the ignition time of the internal combustion engine.

摘要翻译： 提供一种用于排气净化器的状态确定装置，用于根据内燃机的点火时间精确地确定包括用于吸附烃的吸附剂的废气净化器的状态，包括吸附剂的劣化。 用于排气净化器的状态判定装置设置在内燃机的排气系统中，用于确定包括能够吸附废气中的碳氢化合物和水分的吸附剂的废气净化器的状态。 状态判定装置具有布置在排气系统中用于检测废气湿度的吸附剂下游位置处的湿度传感器，以及用于根据湿度检测到的废气湿度来确定吸附剂的状态的ECU 传感器和内燃机的点火时间。

公开(公告)号：US06792749B2

公开(公告)日：2004-09-21

申请号：US10449393

申请日：2003-06-02

申请人： Masaki Ueno ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tadashi Sato

发明人： Masaki Ueno ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tadashi Sato

IPC分类号： F01N300

CPC分类号： F01N3/101 ,  F01N3/0878 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2560/028 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  Y02T10/22 ,  Y02T10/47

摘要： An exhaust gas purifying apparatus for an internal combustion engine is provided for switching a switching valve at an optimal timing in accordance with an actual activated state of a catalyzer to achieve an optimal exhaust gas characteristic. The exhaust gas purifying apparatus comprises a catalyzer disposed in an exhaust system of the internal combustion engine, an adsorbent filled in a second passage circumventing a first passage in the exhaust system for adsorbing hydrocarbons within exhaust gases, a switching valve operable to switch between an open position for opening the first passage and a close position for closing the first passage, an ECU for detecting a temperature state of the exhaust system upon start of the internal combustion engine, and calculating the calory of exhaust gases discharged after the start of the internal combustion engine, and a switching valve driver for driving the switching valve to the close position upon start of the internal combustion engine, and driving the switching valve to the open position in accordance with the detected start-time temperature state of the exhaust system, and the calculated post-start exhaust gas calory.

摘要翻译： 提供一种用于内燃机的排气净化装置，用于根据催化器的实际激活状态在最佳定时切换切换阀，以实现最佳废气特性。 排气净化装置包括设置在内燃机的排气系统中的催化剂，填充在围绕排气系统中的第一通道的吸附在排气中的碳氢化合物的第二通道中的吸附剂，可操作以在开放 用于打开第一通道的位置和用于关闭第一通道的关闭位置; ECU，用于在内燃机启动时检测排气系统的温度状态，以及计算在内燃开始之后排出的废气的热量 发动机和用于在内燃机启动时将切换阀驱动到关闭位置的切换阀驱动器，并且根据检测到的排气系统的起动时间温度状态将切换阀驱动到打开位置，并且 计算起动后废气的卡路里。

公开(公告)号：US06928805B2

公开(公告)日：2005-08-16

申请号：US10490392

申请日：2002-10-21

申请人： Hideharu Yamazaki ,  Masahiro Sato ,  Kei Machida ,  Tetsuo Endo ,  Masaki Ueno

发明人： Hideharu Yamazaki ,  Masahiro Sato ,  Kei Machida ,  Tetsuo Endo ,  Masaki Ueno

IPC分类号： F01N3/08 ,  F01N11/00 ,  F02M25/07 ,  F01N3/00

CPC分类号： F01N11/00 ,  F01N3/0835 ,  F01N3/0878 ,  F01N2550/03 ,  F01N2560/028 ,  F02D2200/0418 ,  F02M26/15 ,  Y02T10/20 ,  Y02T10/47

摘要： A characteristic change of a humidity sensor 19 is detected based on the transitional characteristics of output data of the humidity sensor 19 with respect to integrated moisture quantity data representative of an integrated amount of moisture that is supplied to an HG adsorbent 7 by an exhaust gas after an engine 1 has started to operate. A parameter for grasping a state of the HC adsorbent 7 is corrected. The state, such as a deteriorated state or the like, of a hydrocarbon adsorbent (HC adsorbent) is properly monitored while compensating for the effect of the characteristic change of the humidity sensor and the effect of variations of the characteristics of individual units of the humidity sensor.

摘要翻译： 湿度传感器19的特征变化基于湿度传感器19的输出数据的过渡特性，相对于表示通过废气在HG吸附剂7供给的HG吸附剂7的积分的湿度的积分量的综合水分量数据 发动机1已开始运转。 用于获取HC吸附剂7的状态的参数被校正。 适当地监测烃类吸附剂（HC吸附剂）的劣化状态等的状态，同时补偿湿度传感器的特性变化的影响以及湿度的各个单位特性的变化的影响 传感器。

公开(公告)号：US07062968B2

公开(公告)日：2006-06-20

申请号：US10322470

申请日：2002-12-19

申请人： Masaki Ueno ,  Kei Machida ,  Tetsuo Endo ,  Hideharu Yamazaki

发明人： Masaki Ueno ,  Kei Machida ,  Tetsuo Endo ,  Hideharu Yamazaki

IPC分类号： G01N27/04

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F02D41/1456 ,  F02D41/1494 ,  G01N27/121 ,  Y02T10/22

摘要： A temperature control apparatus for a humidity sensor is provided for preventing impurities from sticking on a sensor element, while protecting the sensor element from cracking due to the humidity sensor heated by a heater in the presence of condensation, to maintain a high detection accuracy of the humidity sensor. The temperature control apparatus is configured to control the temperature of a sensor element of a humidity sensor disposed in an exhaust passage of an internal combustion engine for detecting the humidity within the exhaust passage. The temperature control apparatus comprises a heater for heating the sensor element, a temperature sensor for detecting the temperature of the sensor element, and an ECU for controlling a heating amount of the heater to bring the detected temperature of the sensor element to a first predetermined temperature during an operation of the internal combustion engine.

公开(公告)号：US06763655B2

公开(公告)日：2004-07-20

申请号：US09797995

申请日：2001-03-05

申请人： Masaki Ueno ,  Shusuke Akazaki ,  Masahiro Sato ,  Hideharu Yamazaki ,  Tetsuo Endo ,  Yoshihisa Iwaki ,  Takashi Haga ,  Tadashi Sato

发明人： Masaki Ueno ,  Shusuke Akazaki ,  Masahiro Sato ,  Hideharu Yamazaki ,  Tetsuo Endo ,  Yoshihisa Iwaki ,  Takashi Haga ,  Tadashi Sato

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/101 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0093 ,  F01N2250/12 ,  F01N2550/03 ,  F01N2560/028 ,  F01N2570/12 ,  F01N2900/0422 ,  Y02T10/22 ,  Y02T10/47

摘要： A catalyst state detector for detecting a state of an exhaust gas purifying catalyst which is capable of accurately detecting the state, including deterioration, of an HC adsorbent contained in the exhaust gas purifying catalyst for adsorbing hydrocarbons in exhaust gases of an internal combustion engine, and can be manufactured at a low cost. The exhaust gas purifying catalyst is arranged at an intermediate portion of an exhaust pipe, and the HC adsorbent is capable of adsorbing hydrocarbons and moisture in exhaust gases. The catalyst state detector comprises a downstream humidity sensor arranged at a location downstream of the HC adsorbent in the exhaust pipe for detecting a humidity of the exhaust gases, and an adsorbent state detecting unit (ECU) for detecting the state of the HC adsorbent in accordance with the result of detection made by the downstream humidity sensor.

摘要翻译： 一种用于检测废气净化催化剂的状态的催化剂状态检测器，其能够精确地检测包含在用于吸收内燃机的废气中的碳氢化合物的废气净化催化剂中的HC吸附剂的状态的劣化，以及 可以以低成本制造。 排气净化催化剂配置在排气管的中间部，HC吸附剂能够吸附废气中的碳氢化合物和水分。 催化剂状态检测器包括布置在排气管中的HC吸附剂下游的位置处的下游湿度传感器，用于检测废气的湿度;以及吸附状态检测单元（ECU），用于检测HC吸附剂的状态 由下游湿度传感器进行检测。

公开(公告)号：US06945034B2

公开(公告)日：2005-09-20

申请号：US10658536

申请日：2003-09-10

申请人： Masaki Ueno ,  Shiro Takakura ,  Kei Machida

发明人： Masaki Ueno ,  Shiro Takakura ,  Kei Machida

IPC分类号： F01N3/24 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/18 ,  F01N13/02 ,  F01N3/00

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2560/028 ,  F02D2200/0802 ,  F02D2200/0804 ,  F02D2200/703 ,  Y02T10/22

摘要： An exhaust gas purifying apparatus for an internal combustion engine is provided for switching a switching valve at an optimal timing in accordance with an actual activated state of a catalyzer and a heated state of an adsorbent to achieve an optimal exhaust gas characteristic. The exhaust gas purifying apparatus comprises a catalyzer disposed in an exhaust system of the internal combustion engine, an adsorbent filled in a second passage circumventing a first passage in the exhaust system for adsorbing hydrocarbons within exhaust gases, a switching valve operable to switch between an open position for opening the first passage and a close position for closing the first passage, an ECU for detecting an atmospheric pressure state, and a switching valve driver for driving the switching valve to the close position upon start of the internal combustion engine, and driving the switching valve to the open position in accordance with the detected atmospheric pressure state.

摘要翻译： 提供一种用于内燃机的排气净化装置，用于根据催化剂的实际激活状态和吸附剂的加热状态在最佳定时切换切换阀，以实现最佳废气特性。 排气净化装置包括设置在内燃机的排气系统中的催化剂，填充在围绕排气系统中的第一通道的吸附在排气中的碳氢化合物的第二通道中的吸附剂，可操作以在开放 用于打开第一通道的位置和用于关闭第一通道的关闭位置，用于检测大气压力状态的ECU;以及切换阀驱动器，用于在内燃机启动时将切换阀驱动到关闭位置，并且驱动 根据检测到的大气压状态切换阀到打开位置。

公开(公告)号：US06820416B2

公开(公告)日：2004-11-23

申请号：US10060058

申请日：2002-01-31

申请人： Masaki Ueno ,  Shiro Takakura ,  Kei Machida

发明人： Masaki Ueno ,  Shiro Takakura ,  Kei Machida

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  F01N3/0807 ,  F01N2410/12 ,  F01N2560/028 ,  Y02T10/20

摘要： An exhaust emission control system for an internal combustion engine has an exhaust passage switching device for switching an exhaust gas flow path, an HC adsorbent material disposed within the main exhaust passage for adsorbing and releasing unburned constituents in exhaust gases, and a control device for controlling the switching device such that the exhaust gas flow path is switched to the main exhaust passage when the unburned constituents is adsorbed by the HC adsorbent material, that the exhaust gas flow path is switched to the bypass exhaust passage when the unburned constituents adsorbed by the HC adsorbent material is released from the HC adsorbent material, and that the exhaust gas flow path is switched to the main exhaust passage when the release of the unburned constituents from the HC adsorbent material is completed.

摘要翻译： 一种用于内燃机的废气排放控制系统具有用于切换废气流路的排气通道切换装置，设置在主排气通路内的用于吸附和释放废气中的未燃烧成分的HC吸附剂材料，以及控制装置 所述切换装置使得当所述未燃烧成分被所述HC吸附材料吸附时，所述排气流路切换到所述主排气通路，当所述未燃烧成分被所述HC吸附时，所述排气流路切换到旁通排气通路 吸附剂材料从HC吸附剂材料中释放出来，当完成从HC吸附剂材料的未燃烧成分的释放时，排气流路切换到主排气通道。