-
公开(公告)号：US5811884A
公开(公告)日：1998-09-22
申请号：US785447
申请日：1997-01-17
申请人： Hiroki Matuoka , Masaaki Tanaka , Sigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuichi Goto , Takayuki Otsuka
发明人： Hiroki Matuoka , Masaaki Tanaka , Sigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuichi Goto , Takayuki Otsuka
CPC分类号： B60R16/03 , G01R31/007 , H02J7/0034
摘要： An onboard load control apparatus and a method for detecting a fault of an onboard electrical load with high accuracy are disclosed. The control apparatus comprises an onboard battery mounted on an automotive vehicle, an electrical heater for electrically heating an electrical load such as an electrically-heated catalyst supplied with power from the onboard battery, an auxiliary relay for turning on/off the power to the electrical heater from the onboard battery, and an ECU for controlling the on/off operation of the auxiliary relay. The apparatus further comprises an engine speed detector for detecting the engine speed of the internal combustion engine and a fault judgement unit for judging whether the electrical heater is normal or faulty on the basis of the fluctuation amount of the engine speed of the internal combustion engine detected by the engine speed detector before and after switching the auxiliary relay. A fault of the electrical load is judged by detecting the voltage across the onboard battery while taking the fluctuation amount of the same voltage into consideration. The apparatus further comprises a load condition holder for holding the load condition of a specific load while the engine speed or the battery voltage is detected.
摘要翻译： 公开了一种车载负载控制装置和用于高精度地检测车载电气负载故障的方法。 控制装置包括安装在机动车辆上的车载电池，用于电加热诸如从车载电池供电的电加热催化剂的电负载的电加热器，用于将电力接通/断开到电气的辅助继电器 来自车载电池的加热器和用于控制辅助继电器的接通/断开操作的ECU。 该装置还包括用于检测内燃机的发动机转速的发动机速度检测器和用于基于检测到的内燃机的发动机转速的变动量来判断电加热器是正常还是有故障的故障判断单元 由发动机转速检测器切换辅助继电器前后。 通过检测车载电池两端的电压，同时考虑相同电压的波动量来判断电气负载的故障。 该装置还包括用于在检测到发动机速度或电池电压的同时保持特定负载的负载状态的负载条件保持器。
-
2.发明授权Device for detecting deterioration of catalytic converter for cleaning exhaust gases 失效用于检测用于清洁废气的催化转化器的劣化的装置
公开(公告)号：US5848530A
公开(公告)日：1998-12-15
申请号：US783229
申请日：1997-01-14
申请人： Hiroki Matsuoka , Masaaki Tanaka , Sigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuichi Goto
发明人： Hiroki Matsuoka , Masaaki Tanaka , Sigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuichi Goto
CPC分类号： F01N11/00 , F01N11/002 , F01N13/009 , F01N3/2013 , F01N3/2026 , F01N2550/02 , F01N2900/0422 , Y02T10/26 , Y02T10/47
摘要： A device for detecting deterioration of a catalyst in an internal combustion engine having a heater on the upstream side of a catalytic converter provided in an exhaust gas passage, the device being capable of expanding the deterioration determination conditions of the catalyst. It is determined whether the conditions, except the temperature condition, are all obtained among the conditions for detecting deterioration of the catalytic converter. When the conditions, except the temperature condition, are all obtained, an electric power is supplied from a power source to the heater to satisfy the temperature condition. Deterioration of the catalyst can be reliably detected if the electric power is supplied to the heater only when the engine is in the idling operation condition and if deterioration of the catalyst is detected when the time for supplying electric power to the heater has become larger than a predetermined period of time. The heater may be one contained in the electrically heated catalyst.
摘要翻译： 一种用于检测在设置在废气通道中的催化转化器的上游侧具有加热器的内燃机中的催化剂劣化的装置，该装置能够扩大催化剂的劣化判定条件。 在用于检测催化转化器的劣化的条件之间，确定除温度条件以外的条件是否全部得到。 当除温度条件以外的条件全部获得时，从电源向加热器供电以满足温度条件。 如果仅在发动机处于怠速运转状态时将电力供给到加热器，并且当向加热器供电的时间变得大于1时，则检测到催化剂的劣化，才可以可靠地检测催化剂的劣化 预定时间段。 加热器可以是电加热催化剂中的一种。
-
公开(公告)号：US5904902A
公开(公告)日：1999-05-18
申请号：US744235
申请日：1996-11-05
申请人： Hiroki Matuoka , Masaaki Tanaka , Shigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuuichi Gotou
发明人： Hiroki Matuoka , Masaaki Tanaka , Shigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuuichi Gotou
CPC分类号： F01N3/20 , F01N13/0097 , F01N3/2013 , F01N3/2026 , F01N9/00 , Y02T10/26 , Y02T10/47
摘要： An exhaust purifier for an internal combustion engine is capable of properly heating a catalyst in consideration of a deterioration with time and manufacturing variation in an electric heater that heats the catalyst.The exhaust purifier has the catalyst 4 disposed in an exhaust pipe, the electric heater for forcibly heating the catalyst 4, a power source for supplying power to the heater, an estimate unit for estimating the temperature that the catalyst 4 will reach, a comparator for providing the difference between the estimated temperature and a target temperature, and an operation controller for controlling the operating conditions of the engine according to the temperature difference. The estimate unit measures the voltage and current of the heater, calculates the resistance or power of the heater according to the voltage and current, and estimates the temperature. The operation controller adjusts the quantity of intake air and ignition timing, or adjusts ignition timing and then the quantity of intake air to maintain an engine speed, or, if a battery 6 is abnormal, adjusts the quantity of intake air and ignition timing to increase the temperature of exhaust gas.
摘要翻译： 考虑到加热催化剂的电加热器的时间劣化和制造变化，用于内燃机的排气净化器能够适当地加热催化剂。 排气净化器具有设置在排气管中的催化剂4，用于强制加热催化剂4的电加热器，用于向加热器供电的电源，用于估计催化剂4将达到的温度的估计单元， 提供估计温度和目标温度之间的差异;以及操作控制器，用于根据温度差来控制发动机的运行状况。 估计单元测量加热器的电压和电流，根据电压和电流计算加热器的电阻或功率，并估算温度。 操作控制器调节进气量和点火正时，或者调整点火正时，然后调节进气量以保持发动机转速，或者如果电池6异常，则调节进气量和点火正时增加 废气温度。
-
公开(公告)号：US5814283A
公开(公告)日：1998-09-29
申请号：US744229
申请日：1996-11-05
申请人： Hiroki Matuoka , Masaaki Tanaka , Shigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuuichi Gotou
发明人： Hiroki Matuoka , Masaaki Tanaka , Shigemitu Iisaka , Michio Furuhashi , Toshinari Nagai , Tadayuki Nagai , Takashi Kawai , Kenji Harima , Yuuichi Gotou
CPC分类号： F01N3/222 , F01N13/009 , F01N3/2013 , F01N3/2053 , F01N3/22 , F01N9/00 , Y02T10/26 , Y02T10/47
摘要： An exhaust purifier of an internal combustion engine supplies secondary air into an exhaust pipe without cooling nor inactivating an electrically heated catalyst (EHC) that is active. The exhaust purifier includes the EHC 3 disposed in the exhaust pipe 2, a main catalyst 4 disposed in the exhaust pipe 2 downstream from the EHC 3, and a unit for supplying secondary air into the exhaust pipe 2. The secondary air supply unit has a main path 10 for supplying secondary air into a space defined in the exhaust pipe 2 between the EHC 3 and the main catalyst 4 when it is determined that the main catalyst 4 is active. The secondary air supply unit may additionally have a second path 9 for supplying secondary air into the exhaust pipe 2 on the upstream side of the EHC 3 when it is determined that the EHC 3 is active, so that the secondary air may pass through the EHC 3 and reach the main catalyst 4.
摘要翻译： 内燃机的排气净化器将二次空气供给到排气管中，而不会冷却也不致使活化的电加热催化剂（EHC）失活。 排气净化器包括设置在排气管2中的EHC 3，设置在EHC 3下游的排气管2中的主催化剂4和用于向排气管2供给二次空气的单元。二次空气供给单元具有 当确定主催化剂4是活性的时，主路径10用于在EHC 3和主催化剂4之间的排气管2中限定的空间中供应二次空气。 二次空气供给单元还可以具有第二路径9，用于在确定EHC 3有效时，在EHC 3的上游侧向排气管2供给二次空气，从而二次空气可以通过EHC 3到达主催化剂4。
-
公开(公告)号：US5546917A
公开(公告)日：1996-08-20
申请号：US405328
申请日：1995-03-16
申请人： Akinori Osanai , Toshinari Nagai , Hiroshi Kanai , Kenji Harima , Kazuhiko Iwano , Shuji Yuda
发明人： Akinori Osanai , Toshinari Nagai , Hiroshi Kanai , Kenji Harima , Kazuhiko Iwano , Shuji Yuda
CPC分类号： F02D41/0042 , F02D41/0045 , F02M25/08 , F02D41/0032
摘要： Fuel-vapor evaporating from a fuel tank is led through a vapor pipe and absorbed in a charcoal canister. Fuel-vapor stored in the charcoal canister is supplied to an inlet pipe when a purge valve is opened when the engine is driven, because the pressure in the inlet pipe is low. Fuel-vapor is then burned as fuel in the engine. If the opening of the purge valve is suddenly increased at the start of the purge, the air fuel ratio control is disturbed. Therefore, the purge rate is gradually increased and the vapor concentration of the fuel-vapor purged from the charcoal canister is learned, and the change rate of the purge rate is made small because the air-fuel ratio control may be disturbed when the vapor concentration is not learned enough.
摘要翻译： 从燃料箱蒸发的燃料蒸气被引导通过蒸气管并吸收在炭罐中。 由于入口管内的压力较低，因此当发动机被驱动时打开吹扫阀时，储存在炭罐中的燃料蒸气被供给入口管。 然后，燃料蒸汽作为发动机中的燃料燃烧。 如果在清洗开始时清洗阀的打开突然增加，则空燃比控制被扰乱。 因此，吹扫速度逐渐增加，并且从木炭罐吹扫的燃料蒸气的蒸气浓度被学习，并且由于空气 - 燃料比控制可能在蒸汽浓度 不够学习
-
公开(公告)号：US5558072A
公开(公告)日：1996-09-24
申请号：US413526
申请日：1995-03-30
申请人： Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiro Iwano , Shuji Yuda
发明人： Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiro Iwano , Shuji Yuda
CPC分类号： F02M25/08 , F02D41/0032 , F02D2200/703
摘要： Fuel-vapor evaporating from a fuel tank is led though a vapor pipe and absorbed in a charcoal canister. Though the evaporating rate is influenced by the altitude where the automobile operates, the air-fuel ratio must be controlled within the proper range. This apparatus controls a purge valve in accordance with the purge rate which is determined based on the standard atmospheric pressure and compensated in accordance with the present atmospheric pressure. Therefore, this apparatus can precisely control the amount of purged fuel and the air-fuel ratio.
摘要翻译： 从燃料箱蒸发的燃料蒸汽通过蒸气管引导并吸收在炭罐中。 虽然蒸发速率受到汽车运行高度的影响，空燃比必须控制在适当的范围内。 该装置根据基于标准大气压力确定的吹扫速率控制排气阀，并根据当前的大气压进行补偿。 因此，该装置可以精确地控制清除燃料的量和空燃比。
-
公开(公告)号：US5577486A
公开(公告)日：1996-11-26
申请号：US422978
申请日：1995-04-17
申请人： Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiko Iwano , Shuji Yuda , Takayuki Demura
发明人： Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiko Iwano , Shuji Yuda , Takayuki Demura
CPC分类号： F02D41/2477 , F02D41/2454 , F02D41/2441
摘要： This fuel injection control apparatus consists of a calculating device for calculating an air-fuel ratio correction factor FAF, a learning device for learning an air-fuel ratio learning factor KG in accordance with the deviation of FAF from the reference value, and a controller for controlling the amount of injected fuel in accordance with FAF and KG. When the start enrichment FASE and the warm-up enrichment FWL are added, KG is learned in accordance with the corrected deviation which is the deviation of FAF corrected by the correction factor f(FASE+FWL) which is concerned with FASE and FWL. The learning accuracy is improved because KG is learned at each region of FWL which is divided into plural regions in accordance with the engine driving conditions.
摘要翻译： 该燃料喷射控制装置由用于计算空燃比校正系数FAF的计算装置，用于根据FAF与参考值的偏差来学习空燃比学习系数KG的学习装置，以及控制器 根据FAF和KG控制注入燃料的量。 当添加开始浓缩FASE和预热浓缩FWL时，根据校正偏差来校正KG，该校正偏差是通过与FASE和FWL有关的校正因子f（FASE + FWL）校正的FAF的偏差。 由于在根据发动机驾驶条件被分成多个区域的FWL的各个区域学习KG，因此学习精度得到改善。
-
8.发明授权Apparatus for controlling air-fuel ratio of air-fuel mixture to an engine having an evaporated fuel purge system 失效用于控制空气 - 燃料混合物对具有蒸发的燃料净化系统的发动机的空燃比的装置
公开(公告)号：US5476081A
公开(公告)日：1995-12-19
申请号：US259230
申请日：1994-06-13
申请人： Koji Okawa , Mitsuru Takada , Nobuyuki Kobayashi , Shuji Yuda , Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiko Iwano
发明人： Koji Okawa , Mitsuru Takada , Nobuyuki Kobayashi , Shuji Yuda , Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiko Iwano
CPC分类号： F02D41/0045 , F02M25/08 , F02D41/0042
摘要： An air-fuel ratio control apparatus includes: a determining part for determining a target purge ratio in accordance with operating conditions of an engine; a purge control part for controlling a flow rate of evaporated fuel, supplied from an evaporated fuel purge system into an intake passage of the engine, by actuating a purge control valve based on the target purge ratio, and for storing an evaporated fuel flow rate of the purge control valve; a fuel injection control part for generating a drive signal in accordance with a fuel injection time, and for controlling an air-fuel ratio of an air-fuel mixture to the intake passage by actuating a fuel injection valve in accordance with the drive signal; an estimating part for estimating the ratio of an evaporated fuel flow rate to an intake air flow rate based on sensed operating conditions of the engine and on the stored evaporated fuel flow rate of the purge control part; and a fuel injection time determining part for determining a fuel injection time based on the estimated ratio, and for supplying the fuel injection time to the fuel injection control part.
摘要翻译： 空燃比控制装置包括：确定部，其根据发动机的运转条件来确定目标吹扫比; 吹扫控制部分，用于通过基于所述目标吹扫比率来驱动吹扫控制阀，用于控制从蒸发燃料吹扫系统供应到发动机的进气通道中的蒸发燃料的流量，并且用于存储蒸发燃料的蒸发燃料流量 清洗控制阀; 燃料喷射控制部分，用于根据燃料喷射时间产生驱动信号，并且根据驱动信号通过致动燃料喷射阀来控制空气 - 燃料混合物与进气通道的空燃比; 估计部分，用于基于感测到的发动机的运行条件以及所述净化控制部分的储存的蒸发燃料流量来估计蒸发的燃料流量与进气流量的比率; 以及燃料喷射时间确定部分，用于基于估计的比率确定燃料喷射时间，并且用于将燃料喷射时间提供给燃料喷射控制部分。
-
公开(公告)号：US06666199B2
公开(公告)日：2003-12-23
申请号：US09969642
申请日：2001-10-04
申请人： Naoto Kato , Toshinari Nagai , Akira Kamoto , Akihiro Katayama
发明人： Naoto Kato , Toshinari Nagai , Akira Kamoto , Akihiro Katayama
IPC分类号： F02D4100
CPC分类号： F02D41/1494 , F02D41/06 , F02D41/222 , Y02T10/40
摘要： In a control device, in a control device of an internal combustion engine provided with an internal combustion engine main body mounted to a vehicle and a heater operating on the basis of an output from a specific sensor given as a trigger at least before the internal combustion engine main body starts, whether or not the heater is operated before the start is stored, and it is judged that the sensor has failed when operation of the heater is not stored.
-
公开(公告)号：US5743086A
公开(公告)日：1998-04-28
申请号：US734543
申请日：1996-10-21
申请人： Toshinari Nagai
发明人： Toshinari Nagai
CPC分类号： F02D41/1479 , F01N11/007 , F02D41/0235 , F02D41/1441 , F02D41/1495 , F01N2550/02 , Y02T10/22 , Y02T10/47
摘要： A device for judging the deterioration of a three-way catalyst comprising an upstream O.sub.2 sensor and a downstream O.sub.2 sensor which are arranged in the exhaust passage upstream and downstream of the three-way catalyst respectively. When the ratio of length of the output signal response curve of the downstream O.sub.2 sensor and the length of the output signal response curve of the upstream O.sub.2 sensor is over a threshold level, it is judged that the three-way catalyst has deteriorated. The threshold value is reduced as the mean value of the air-fuel ratio becomes off from the stoichiometric air-fuel ratio.
摘要翻译： 一种用于判断包含上游O 2传感器和下游O2传感器的三元催化剂劣化的装置，它们分别布置在三元催化剂的上游和下游的排气通道中。 当下游O2传感器的输出信号响应曲线的长度与上游O 2传感器的输出信号响应曲线的长度的比率超过阈值水平时，判定三元催化剂已劣化。 随着空燃比的平均值从理论空燃比的偏离而减小阈值。
-
-
-
-
-
-
-
-
-
搜索结果
52 条记录 (耗时 0.037 秒)
