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公开(公告)号：US20130213016A1
公开(公告)日：2013-08-22
申请号：US13768634
申请日：2013-02-15
申请人： DENSO CORPORATION
发明人： Shingo NAKATA , Mikiyasu Matsuoka , Hiroki Nogami
IPC分类号： F01N9/00
CPC分类号： F01N9/00 , F02D41/1441 , F02D41/1456 , F02D41/1476
摘要： An emission control system for an engine includes an upstream sensor provided upstream of a catalyst in a flow direction of exhaust gas, a downstream sensor provided downstream of the catalyst to detect an air-fuel ratio so that the air-fuel ratio approaches a target air-fuel ratio in a sub feedback control, a constant current supply portion which changes an output characteristic of the downstream sensor by applying a constant current on a pair of electrodes thereof. A characteristic control portion controls the constant current supply portion in the sub feedback control to advance a timing of lean detection of the downstream sensor when the air-fuel ratio is richer than the target air-fuel ratio, and to advance a timing of rich detection of the downstream sensor when the air-fuel ratio is leaner than the target air-fuel ratio.
摘要翻译： 用于发动机的排放控制系统包括设置在排气流动方向上的催化剂上游的上游传感器，设置在催化剂下游的下游传感器，以检测空燃比使空燃比接近目标空气 - 反馈控制中的燃料比，恒定电流供应部分，其通过在其一对电极上施加恒定电流来改变下游传感器的输出特性。 当空燃比比目标空燃比更浓时，特征控制部分控制副反馈控制中的恒流供应部分，以提高下游传感器的稀薄检测时间，并且提前进行丰富检测的定时 当空燃比比目标空燃比更稀的时候，
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公开(公告)号：US20180050307A1
公开(公告)日：2018-02-22
申请号：US15553699
申请日：2016-02-12
申请人： DENSO CORPORATION
发明人： Shingo NAKATA , Takao MISHIMA
CPC分类号： B01D53/9454 , B01D39/20 , B01D46/2418 , B01D53/94 , B01D2279/30 , B01J35/04 , B01J37/0217 , F01N3/022 , F01N3/0222 , F01N3/023 , F01N3/035 , F01N3/101 , F01N3/24 , F01N3/28 , F01N2330/30 , F02D41/029 , F02D41/1446 , Y02T10/22
摘要： An exhaust purification device purifies an exhaust gas exhausted from an internal combustion engine. The exhaust purification device has a three-way catalytic agent that is located in an exhaust passage of the internal combustion engine and a particulate filter that is located downstream of the three-way catalytic agent in the exhaust passage and that collects an exhaust particulate. The particulate filter is provided with cells that includes sealed-inlet cells of which upstream ends are sealed and through cells through which an upstream side and a downstream side of the particulate filter communicate with each other. The particulate filter is arranged at a location where a temperature of the exhaust gas reaching an upstream end of the particulate filter is higher than or equal to a combustion temperature of the exhaust particulate, when the three-way catalytic agent is in an active state and when the internal combustion engine is operated.
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公开(公告)号：US20160202210A1
公开(公告)日：2016-07-14
申请号：US15023435
申请日：2014-09-25
申请人： DENSO CORPORATION
发明人： Shingo NAKATA , Mikiyasu MATSUOKA , Yasuo MUKAI
IPC分类号： G01N27/416 , G01N27/407 , G01N33/00
CPC分类号： G01N27/4163 , F02D41/123 , F02D41/1454 , F02D41/1495 , G01N27/4065 , G01N27/4071 , G01N27/409 , G01N33/007 , G01N33/0073
摘要： An O2 sensor includes a sensor element using a solid electrolyte layer and a pair of electrodes placed at a position to interpose the solid electrolyte layer, detects an exhaust gas from an internal combustion engine as an object of a detection, and outputs an electromotive force signal depending on an air-fuel ratio of the exhaust gas. The sensor element is connected with a constant current circuit supplying a constant current that is prescribed. A microcomputer conducts an abnormality diagnosis of an output response of the sensor element on the basis of a state of variation in an electromotive force output. Further, when the microcomputer conducts the abnormality diagnosis, the microcomputer restricts a supply of the constant current by the constant current circuit before conducting the abnormality diagnosis.
摘要翻译： O2传感器包括使用固体电解质层的传感器元件和置于固体电解质层的位置的一对电极，检测作为检测对象的来自内燃机的废气，并输出电动势信号 取决于废气的空燃比。 传感器元件与提供规定的恒定电流的恒流电路连接。 微型计算机基于电动势输出的变化状态对传感器元件的输出响应进行异常诊断。 此外，当微计算机执行异常诊断时，微机在进行异常诊断之前，通过恒流电路限制恒定电流的供给。
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公开(公告)号：US20130192211A1
公开(公告)日：2013-08-01
申请号：US13752791
申请日：2013-01-29
申请人： DENSO CORPORATION
发明人： Kosuke NAKANO , Shingo NAKATA , Mikiyasu MATSUOKA
IPC分类号： F01N9/00
CPC分类号： F01N9/005 , F02D41/1441 , F02D41/1454 , F02D2041/1431
摘要： An emission control system for an engine includes a catalyst and an exhaust-gas sensor provided downstream of the catalyst in a flow direction of exhaust gas. The exhaust-gas sensor includes a sensor element that includes a pair of electrodes and a solid electrolyte body located between the electrodes. The emission control system further includes a constant current supply portion that changes an output characteristic of the exhaust-gas sensor by applying a constant current between the electrodes, a catalytic-state determination portion which determines a rich/lean state of the catalyst, a rich direction control portion which performs and terminates a rich direction control depending on the rich/lean state of the catalyst, a lean direction control portion which performs a lean direction control after the rich direction control, and a characteristic control portion which performs a lean responsiveness control at least during the lean direction control.
摘要翻译： 发动机的排放控制系统包括催化剂和排气传感器，其设置在排气的流动方向上的催化剂下游。 排气传感器包括传感器元件，其包括一对电极和位于电极之间的固体电解质体。 排放控制系统还包括通过在电极之间施加恒定电流来改变排气传感器的输出特性的恒定电流供给部，确定催化剂的富/贫状态的催化态判定部，富 方向控制部分，其根据催化剂的浓/贫状态执行和终止丰富方向控制;在丰富方向控制之后进行瘦方向控制的瘦方向控制部分，以及执行精益响应控制的特性控制部分 至少在倾向控制期间。
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公开(公告)号：US20180016960A1
公开(公告)日：2018-01-18
申请号：US15547872
申请日：2016-01-21
申请人： DENSO CORPORATION
发明人： Shingo NAKATA
CPC分类号： F01N9/002 , F01N3/027 , F01N3/101 , F01N11/007 , F02D41/029 , F02D41/1466 , F02D41/1494 , F02D41/222 , Y02T10/22
摘要： A particulate detection device has an insulation part, electrodes, an adhesion amount calculation section, a heater and a controller. The insulation part is located in an exhaust passage of an internal combustion engine and has an adhesion surface to which exhaust particulates emitted from the internal combustion engine adhere. The adhesion amount calculation section calculates an adhesion amount of the exhaust particulates adhered to the insulation part based on an electrical resistance between two of the electrodes. The controller, in a normal control, controls an air/fuel ratio in the internal combustion engine to be a theoretical air/fuel ratio. The controller, in a regeneration control, controls the heater to increase a temperature of the insulation part and removes the exhaust particulates from the insulation part by burning the exhaust particulates, and controls the air/fuel ratio to be lean as compared to the theoretical air/fuel ratio.
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公开(公告)号：US20180010498A1
公开(公告)日：2018-01-11
申请号：US15544955
申请日：2016-01-27
申请人： DENSO CORPORATION
发明人： Shingo NAKATA
摘要： An exhaust-gas purifying device purifies an exhaust gas exhausted from a gasoline engine of a vehicle and flowing in an exhaust pipe, and has a purifying function part disposed in the exhaust pipe and a detector located downstream of the purifying part in the exhaust pipe. The purifying function part has a three-way catalyst that oxidizes and reduces a toxic substance and a filter that collects a particular matter included in the exhaust gas. The detector detects an amount of the particular matter based on electrical conductivity between the electrodes of the detector. The detector is located at a position that is one meter distanced from a downstream end of the purifying function part in a path length of the exhaust pipe or a position at which a temperature of the exhaust gas flowing after a warm-up operation of the gasoline engine is lower than or equal to 450° C.
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公开(公告)号：US20170354911A1
公开(公告)日：2017-12-14
申请号：US15542215
申请日：2016-01-05
申请人： DENSO CORPORATION
发明人： Hironori NIWA , Syusaku YAMAMURA , Mikio ISHIHARA , Takao MISHIMA , Shingo NAKATA , Hiroaki FUJII , Kouta YAMAKOSHI , Akira MIYASHITA
CPC分类号： B01D46/247 , B01D39/2068 , B01D46/2429 , B01D46/2459 , B01D2046/2481 , B01D2046/2485 , B01D2046/2496 , B01D2279/30 , F01N3/022 , F01N3/0222 , F01N2330/00 , F01N2330/06 , F01N2330/34 , F01N2330/48 , Y02T10/20
摘要： An exhaust gas filter purifies exhaust gas containing particulate matter emitted from an engine. The filter has cell walls and cells surrounded by the cell walls. Through pores formed in the cell walls, adjacent cells are communicated. The cells have open cells opening along an axial direction of the filter, and plugged cells. An upstream end part of the plugged cell is plugged by a plug member. On a cross section perpendicular to the axial direction, a flow-passage sectional area of the plugged cells is larger than a flow-passage sectional area of the open cells. A total length of the filter is not less than a first standard value and is not more than a critical length Lm determined by respective predetermined equations.
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公开(公告)号：US20170051650A1
公开(公告)日：2017-02-23
申请号：US15119428
申请日：2015-02-24
申请人： DENSO CORPORATION
发明人： Shingo NAKATA
CPC分类号： F01N9/002 , F01N3/021 , F01N3/023 , F01N11/00 , F01N2560/05 , F01N2900/0412 , F01N2900/08 , F01N2900/1606 , G01N15/0606 , G01N15/0618 , G01N15/0656 , G01N2015/0046 , Y02T10/47
摘要： A PM detection device for an internal combustion engine includes a PM sensor outputting a signal in response to a resistance between a plurality of electrodes provided to a detection portion to which a particulate matter emitted from an internal combustion engine are attached, and a PM detection portion computing a PM attachment amount, which is an amount of a PM attached to the detection portion of the PM sensor, based on an output signal of the PM sensor by using a relation between the output signal of the PM sensor and the PM attachment amount. The PM detection portion corrects the PM attachment amount in response to an operating condition of the internal combustion engine when computing the PM attachment amount based on the output signal of the PM sensor.
摘要翻译： 内燃机的PM检测装置包括：PM传感器，响应于设置在安装有从内燃机发射的颗粒物质的检测部分的多个电极之间的电阻而输出信号;以及PM检测部 通过使用PM传感器的输出信号与PM附着量之间的关系，基于PM传感器的输出信号来计算附着到PM传感器的检测部分的PM的量。 当根据PM传感器的输出信号计算PM附着量时，PM检测部分响应于内燃机的运行状况来校正PM附着量。
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公开(公告)号：US20160209352A1
公开(公告)日：2016-07-21
申请号：US15023446
申请日：2014-09-25
申请人： DENSO CORPORATION
发明人： Takao MISHIMA , Shingo NAKATA , Mikiyasu MATSUOKA , Tomoo KAWASE , Yuuji YAMADA
IPC分类号： G01N27/406 , G01N27/41 , G01N27/407
CPC分类号： G01N27/4065 , F02D41/064 , F02D41/123 , F02D41/1456 , F02D41/1494 , F02D41/2432 , F02D41/2474 , G01N27/4067 , G01N27/4071 , G01N27/41
摘要： An O2 sensor includes a sensor element using a solid electrolyte layer and a pair of electrodes placed at a position to interpose the solid electrolyte layer, detects an exhaust gas from an internal combustion engine as an object of a detection, and outputs an electromotive force signal depending on an air-fuel ratio of the exhaust gas. The sensor element is connected with a constant current circuit supplying a constant current that is prescribed. A microcomputer calculates an element resistance, determines whether the air-fuel ratio is at least rich, lean, or stoichiometric, on the basis of a comparison between an electromotive force output of the electrogenic cell and a prescribed threshold. Further, the microcomputer controls the constant current supplied by the constant current circuit on the basis of the element resistance.
摘要翻译： O2传感器包括使用固体电解质层的传感器元件和置于固体电解质层的位置的一对电极，检测作为检测对象的来自内燃机的废气，并输出电动势信号 取决于废气的空燃比。 传感器元件与提供规定的恒定电流的恒流电路连接。 微计算机基于电致电池的电动势输出与规定的阈值之间的比较来计算元件电阻，确定空燃比是否至少为浓，稀，或化学计量。 此外，微计算机基于元件电阻来控制由恒流电路提供的恒定电流。
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公开(公告)号：US20240317416A1
公开(公告)日：2024-09-26
申请号：US18679884
申请日：2024-05-31
申请人： DENSO CORPORATION
发明人： Yuichi TAKEMURA , Shun SUGITA , Shingo NAKATA
CPC分类号： B64D33/08 , G01K1/026 , G01K3/005 , B64C29/0008 , B64D27/30
摘要： A control device is configured to control an electric flight vehicle. The electric flight vehicle includes an electric drive device configured to drive and rotate a rotor blade and a cooling unit configured to cool the drive device. The control device includes a temperature acquisition unit and a cooling determination unit. The temperature acquisition unit is configured to acquire temperature of the drive device as a device temperature. The cooling determination unit is configured to determine, according to the device temperature, whether a cooling-related abnormality has occurred as an abnormality related to cooling of the drive device by the cooling unit.
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