公开(公告)号：US06739177B2

公开(公告)日：2004-05-25

申请号：US10087738

申请日：2002-03-05

申请人： Fumihiko Sato ,  Takuji Matsubara ,  Mamoru Yoshioka ,  Yoshihiko Hyoudo ,  Takayuki Takeuchi ,  Naohisa Oyama ,  Shigeki Daido

发明人： Fumihiko Sato ,  Takuji Matsubara ,  Mamoru Yoshioka ,  Yoshihiko Hyoudo ,  Takayuki Takeuchi ,  Naohisa Oyama ,  Shigeki Daido

IPC分类号： G01P512

CPC分类号： F02M25/08 ,  F02D41/0037 ,  F02D41/0042 ,  F02D41/144 ,  F02D41/1456 ,  F02D41/1495 ,  F02M26/19 ,  F02M26/46

摘要： Correction of a fuel injection amount in an internal combustion engine during purge of evaporative fuel is performed on the basis of an output from an intake-oxygen concentration sensor disposed in an intake passage of the internal combustion engine. If the amplitude of fluctuations in engine speed becomes equal to or greater than a predetermined value, it is determined that there is an anomaly in engine output. In addition, if an anomaly in engine output is detected during purge and if no anomaly in engine output is detected during stoppage of purge, an ECU determines that an anomaly has occurred in the intake-oxygen concentration sensor, cancels correction of the fuel injection amount based on an output from the intake-oxygen concentration sensor during purge, and corrects the fuel injection amount on the basis of outputs from exhaust-gas air-fuel ratio sensors.

摘要翻译： 基于设置在内燃机的进气通道中的进气 - 氧浓度传感器的输出，执行在蒸发燃料净化期间内燃机中的燃料喷射量的校正。 如果发动机转速的波动幅度变得等于或大于预定值，则确定发动机输出有异常。 此外，如果在净化期间检测到发动机输出异常，并且在清除停止期间没有检测到发动机输出异常的情况下，ECU判断为在进气 - 氧浓度传感器中发生异常，则取消燃料喷射量的校正 基于在净化期间的进气 - 氧浓度传感器的输出，并且基于来自排气空燃比传感器的输出来校正燃料喷射量。

公开(公告)号：US06742379B2

公开(公告)日：2004-06-01

申请号：US10652500

申请日：2003-09-02

申请人： Takuji Matsubara ,  Mamoru Yoshioka

发明人： Takuji Matsubara ,  Mamoru Yoshioka

IPC分类号： G01N2746

CPC分类号： F02D41/144 ,  F02D41/003 ,  F02D41/2441 ,  F02D41/2454 ,  F02D41/2474 ,  G01N27/4175

摘要： An intake air oxygen concentration sensor calibration device is provided with an oxygen concentration sensor that detects a concentration of oxygen contained in intake air, intake passageway pressure detection means, stable condition determination means that determines whether the intake passageway pressure is in a stable condition based on the amplitude of fluctuations in intake passageway pressure and a predetermined stable condition criterion value, calibration coefficient calculation means that calculates a calibration coefficient based on the intake passageway pressure and a reference output value of the oxygen concentration sensor, and calibration means that calibrates the output of the oxygen concentration sensor based on the calibration coefficient, wherein and the stable condition criterion value is set so that the smaller the intake passageway pressure detected, the smaller the value, and the greater the intake passageway pressure detected, the greater the value, and the calibration coefficient calculation means updates the calibration coefficient when the intake passageway pressure is stable.

摘要翻译： 吸入空气氧浓度传感器校准装置设置有氧浓度传感器，其检测进气中所含的氧浓度，进气通道压力检测装置，稳定状态判定装置，其基于以下步骤判断进气通路压力是否处于稳定状态 进气通道压力的波动幅度和预定的稳定条件标准值，校准系数计算装置，其基于进气通道压力和氧浓度传感器的参考输出值计算校准系数，以及校准装置， 基于校准系数的氧浓度传感器，其中和稳定条件标准值被设置为使得检测到的进气通道压力越小，值越小，并且检测到的进气通道压力越大，该值越大，并且 卡利 当进气通道压力稳定时，起升系数计算装置更新校准系数。

公开(公告)号：US06631632B2

公开(公告)日：2003-10-14

申请号：US09905929

申请日：2001-07-17

申请人： Takuji Matsubara ,  Mamoru Yoshioka

发明人： Takuji Matsubara ,  Mamoru Yoshioka

IPC分类号： G01N2746

CPC分类号： F02D41/144 ,  F02D41/003 ,  F02D41/2441 ,  F02D41/2454 ,  F02D41/2474 ,  G01N27/4175

摘要： An intake air oxygen concentration sensor calibration device is provided with an oxygen concentration sensor that detects a concentration of oxygen contained in intake air, intake passageway pressure detection means, stable condition determination means that determines whether the intake passageway pressure is in a stable condition based on the amplitude of fluctuations in intake passageway pressure and a predetermined stable condition criterion value, calibration coefficient calculation means that calculates a calibration coefficient based on the intake passageway pressure and a reference output value of the oxygen concentration sensor, and calibration means that calibrates the output of the oxygen concentration sensor based on the calibration coefficient, wherein and the stable condition criterion value is set so that the smaller the intake passageway pressure detected, the smaller the value, and the greater the intake passageway pressure detected, the greater the value, and the calibration coefficient calculation means updates the calibration coefficient when the intake passageway pressure is stable.

摘要翻译： 吸入空气氧浓度传感器校准装置设置有氧浓度传感器，其检测进气中所含的氧浓度，进气通道压力检测装置，稳定状态判定装置，其基于以下步骤判断进气通路压力是否处于稳定状态 进气通道压力的波动幅度和预定的稳定条件标准值，校准系数计算装置，其基于进气通道压力和氧浓度传感器的参考输出值计算校准系数，以及校准装置， 基于校准系数的氧浓度传感器，其中和稳定条件标准值被设置为使得检测到的进气通道压力越小，值越小，并且检测到的进气通道压力越大，该值越大，并且 卡利 进气系数计算装置在进气通道压力稳定时更新校准系数

公开(公告)号：US06371086B1

公开(公告)日：2002-04-16

申请号：US09944196

申请日：2001-09-04

申请人： Takuji Matsubara ,  Mamoru Yoshioka

发明人： Takuji Matsubara ,  Mamoru Yoshioka

IPC分类号： F02M3704

CPC分类号： F02D41/40 ,  F02B2075/125 ,  F02D41/0042 ,  F02D41/0045 ,  F02D41/3029 ,  Y02T10/123 ,  Y02T10/44

摘要： Fuel vapor is introduced into an intake passage of a direct fuel injection type engine by a fuel vapor purge apparatus. The intake passage is provided with an intake oxygen concentration sensor for detecting the amount of fuel vapor in intake air. An ECU corrects the amount of fuel injection from each direct fuel injection valve in accordance with the amount of fuel vapor detected, and changes the fuel injection starting timing and the fuel injection ending timing in accordance with the amount of fuel vapor.

摘要翻译： 燃料蒸汽通过燃料蒸气吹扫装置引入直接燃料喷射型发动机的进气通道中。 进气通道设置有用于检测进气中的燃料蒸气量的进气氧浓度传感器。 ECU根据检测到的燃料蒸汽量校正来自每个直接燃料喷射阀的燃料喷射量，并且根据燃料蒸汽量来改变燃料喷射开始正时和燃料喷射结束时刻。

公开(公告)号：US09222441B2

公开(公告)日：2015-12-29

申请号：US13894925

申请日：2013-05-15

申请人： Mamoru Yoshioka

发明人： Mamoru Yoshioka

IPC分类号： F02M25/07 ,  F02D41/00 ,  F02D41/12

CPC分类号： F02M25/0701 ,  F02D41/005 ,  F02D41/0077 ,  F02D41/123 ,  F02D2200/0406 ,  F02M26/05 ,  F02M26/06 ,  F02M26/22 ,  F02M26/35 ,  F02M26/50 ,  F02M26/53 ,  Y02T10/47

摘要： An EGR apparatus includes a EGR passage for allowing part of exhaust gas discharged from a combustion chamber of an engine to an exhaust passage to flow in an intake passage and recirculate back to the combustion chamber, and an EGR valve provided in the EGR passage to regulate an EGR passage in this passage. The EGR valve includes a valve seat, a valve element to be seatable on the valve seat, and a step motor for driving the valve element to open and close. An electronic control device controls the EGR valve to repeat opening and closing of the valve element between a closing position and a small opening position in order to remove foreign matters adhered to the valve seat or valve element during deceleration fuel cutoff of the engine.

摘要翻译： EGR装置包括EGR通路，用于使从发动机的燃烧室排出的排气的一部分排出通道在进气通道中流动并再循环回到燃烧室，EGR阀设置在EGR通道中以调节 该通道中的EGR通道。 EGR阀包括阀座，可在阀座上定位的阀元件和用于驱动阀元件打开和关闭的步进电机。 电子控制装置控制EGR阀以在关闭位置和小打开位置之间重复打开和关闭阀元件，以便在发动机的减速燃料切断期间去除附着到阀座或阀元件的异物。

公开(公告)号：US09121322B2

公开(公告)日：2015-09-01

申请号：US13695532

申请日：2010-08-31

申请人： Takashi Watanabe ,  Mamoru Yoshioka

发明人： Takashi Watanabe ,  Mamoru Yoshioka

IPC分类号： B01D50/00 ,  F01N3/20

CPC分类号： F01N3/2026 ,  F01N3/2013 ,  F01N3/2871 ,  Y02T10/26

摘要： The present invention is intended to suppress a decrease in insulation resistance between electrodes and a case in an electrically heated catalyst (EHC). The EHC according to the present invention is provided with a heat generation element that is electrically energized to generate heat thereby to heat a catalyst, a case that receives a heat generation element therein, an insulating member that is arranged between the heat generation element and the case for insulating electricity, electrodes that are connected to the heat generation element through an electrode chamber which is a space located between an inner wall surface of the case and an outer peripheral surface of the heat generation element, and a communication passage that makes communication between a portion of an exhaust system of the internal combustion engine, which is other than a portion thereof in which the electrically heated catalyst is arranged, and the electrode chamber.

摘要翻译： 本发明旨在抑制电极之间的绝缘电阻降低和电加热催化剂（EHC）中的情况。 根据本发明的EHC具有发电元件，其通电以产生热量，从而加热催化剂，其中容纳发热元件的壳体，布置在发热元件和发热元件之间的绝缘构件 通过电极室连接到发热元件的电极，该电极室是位于壳体的内壁表面和发热元件的外周表面之间的空间，以及连通通道， 内燃机的排气系统的一部分，其不同于其中布置有电加热催化剂的部分，以及电极室。

公开(公告)号：US09060387B2

公开(公告)日：2015-06-16

申请号：US13814676

申请日：2010-08-23

申请人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

发明人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

IPC分类号： H05B3/06 ,  H05B1/00 ,  F01N3/20 ,  F01N3/00 ,  B01D53/88

CPC分类号： H05B1/00 ,  B01D53/88 ,  F01N3/005 ,  F01N3/2013 ,  F01N2470/24 ,  Y02T10/26

摘要： An object of the invention is to control the penetration of condensed water into an insulation member or a heater element in an electric heating catalyst (EHC). The EHC according to the invention includes a heater element that generates heat by supply of electric current to heat a catalyst, a casing that houses the heater element, an insulation member provided between the heater element and the casing to provide electric insulation, and an electrode connected to the heater element through an electrode chamber, which is a space located between the inner wall surface of the casing and the outer circumferential surface of the heater element. The EHC is further provided with a bypass passage, one end of which is connected to a bottom part of the casing at a position upstream of the upstream end face of the insulation member. The bypass passage bypasses the insulation member.

摘要翻译： 本发明的一个目的是控制冷凝水渗透到电加热催化剂（EHC）中的绝缘构件或加热元件中。 根据本发明的EHC包括通过供应电流来加热催化剂而产生热量的加热器元件，容纳加热器元件的壳体，设置在加热器元件和壳体之间以提供电绝缘的绝缘部件，以及电极 通过电极室连接到加热器元件，该电极室是位于壳体的内壁表面和加热器元件的外周表面之间的空间。 EHC还设置有旁通通道，其旁边通道在绝缘构件的上游端面的上游位置连接到壳体的底部。 旁通通道绕过绝缘构件。

公开(公告)号：US08938952B2

公开(公告)日：2015-01-27

申请号：US13146267

申请日：2010-08-24

申请人： Noriaki Kumagai ,  Mamoru Yoshioka ,  Naoya Takagi

发明人： Noriaki Kumagai ,  Mamoru Yoshioka ,  Naoya Takagi

IPC分类号： F01N3/10 ,  F01N3/20 ,  F01N3/28 ,  B01J35/00

CPC分类号： F01N3/2013 ,  B01J35/0033 ,  F01N3/2026 ,  F01N3/2853 ,  F01N3/2871 ,  F01N2240/16 ,  F01N2470/08 ,  Y02T10/26

摘要： The present invention is intended to suppress a decrease in insulation resistance between electrodes and a case in an electric heating catalyst (EHC). An EHC (1) according to the present invention is provided with a heat generation element (3) that is energized to generate heat thereby to heat a catalyst, a case (4) that receives the heat generation element therein, an insulating member (5) that is arranged between the heat generation element (3) and the case (4) for insulating electricity, electrodes (7) that are connected to the heat generation element (3) through an electrode chamber (9) which is a space located between an inner wall surface of the case (4) and an outer peripheral surface of the heat generation element (3), and a ventilation passage (10) that ventilates the electrode chamber.

摘要翻译： 本发明旨在抑制电极之间的绝缘电阻降低和电加热催化剂（EHC）中的情况。 根据本发明的EHC（1）具有发电元件（3），该发热元件（3）被通电以产生热量，从而加热催化剂;壳体（4），其接收发热元件;绝缘构件 ），其布置在发热元件（3）和用于绝缘的壳体（4）之间，电极（7）通过电极室（9）连接到发热元件（3），电极室（9）是位于 壳体（4）的内壁面和发热元件（3）的外周面，以及使电极室通风的通气通路（10）。

公开(公告)号：US08910469B2

公开(公告)日：2014-12-16

申请号：US13146267

申请日：2010-08-24

申请人： Noriaki Kumagai ,  Mamoru Yoshioka ,  Naoya Takagi

发明人： Noriaki Kumagai ,  Mamoru Yoshioka ,  Naoya Takagi

IPC分类号： F01N3/10 ,  F01N3/20 ,  F01N3/28 ,  B01J35/00

摘要： The present invention is intended to suppress a decrease in insulation resistance between electrodes and a case in an electric heating catalyst (EHC). An EHC (1) according to the present invention is provided with a heat generation element (3) that is energized to generate heat thereby to heat a catalyst, a case (4) that receives the heat generation element therein, an insulating member (5) that is arranged between the heat generation element (3) and the case (4) for insulating electricity, electrodes (7) that are connected to the heat generation element (3) through an electrode chamber (9) which is a space located between an inner wall surface of the case (4) and an outer peripheral surface of the heat generation element (3), and a ventilation passage (10) that ventilates the electrode chamber.

公开(公告)号：US08894942B2

公开(公告)日：2014-11-25

申请号：US13821595

申请日：2010-09-09

申请人： Mamoru Yoshioka ,  Takashi Watanabe

发明人： Mamoru Yoshioka ,  Takashi Watanabe

IPC分类号： B01D50/00

CPC分类号： F01N3/2026 ,  B01D53/9431 ,  B01D53/9454 ,  F01N3/2013 ,  F01N3/2853 ,  F01N3/2871 ,  F01N2240/16 ,  F01N2330/06 ,  F01N2330/10 ,  F01N2470/08 ,  Y02T10/22 ,  Y02T10/26

摘要： Electricity is suppressed from flowing to a case (4) of an electrically heated catalyst (1). Provision is made for a heat generation element (2) adapted to be electrically energized to generate heat, the case (4) in which the heat generation element (2) is contained, a mat (5) arranged between the heat generation element (2) and the case (4) to insulate electricity and at the same time to support the heat generation element (2), an electrode (6) connected to the heat generation element (2) from outside of the case (4), an insulation part (7) to plug a gap between the case (4) and the electrode (6), an electrode chamber (8) which is a space formed around the electrode (6) at an inner side of the case (4) and at an outer side of the heat generation element (2), and which is formed by providing a gap between the electrode (6) and the mat (5), and a partition part (9) arranged in the electrode chamber (8) at an upstream side of the electrode (6) in a direction of flow of an exhaust gas, in such a manner that the exhaust gas flowing through the interior of the electrode chamber (8) impinges against the partition part (9).

摘要翻译： 抑制电流流向电加热催化剂（1）的壳体（4）。 规定了适用于通电以产生热量的发热元件（2），其中容纳发热元件（2）的壳体（4），布置在发热元件（2）之间的垫（5） ）和壳体（4），以隔离电力并同时支撑发热元件（2），从壳体（4）的外部连接到发热元件（2）的电极（6），绝缘体 插入壳体（4）和电极（6）之间的间隙的部分（7），电极室（8），其在壳体（4）的内侧周围形成在电极（6）周围的空间， 通过在电极（6）和垫（5）之间设置间隙而形成的发热元件（2）的外侧，以及配置在电极室（8）内的分隔部（9） 电极（6）的上游侧沿着排气的流动方向，使得流过电极室（8）的内部的废气， 撞击分隔部分（9）。