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1. 发明授权

US06966218B2 Apparatus for detecting leakage in an evaporated fuel processing system 有权
标题翻译：用于检测蒸发燃料处理系统中的泄漏的装置
公开(公告)号：US06966218B2
公开(公告)日：2005-11-22
申请号：US10674798
申请日：2003-10-01
申请人： Hideyuki Oki , Takashi Yamaguchi , Tomohiro Yamagami , Eisaku Gosyo
发明人： Hideyuki Oki , Takashi Yamaguchi , Tomohiro Yamagami , Eisaku Gosyo
IPC分类号： F02D41/00 , F02M25/08 , G01M19/00 , G01M3/04
CPC分类号： F02M25/0809 , F02M2025/0845
摘要： An apparatus for determining leakage in an evaporated fuel processing system is provided. The evaporated fuel processing system extends from a fuel tank through a canister to a purge passage through which evaporated fuel from the fuel tank is purged to an intake manifold of an engine. The canister comprises a vent-shut valve that communicates with the atmosphere. The apparatus comprises a pressure sensor for detecting a pressure of the evaporated fuel processing system and a control unit connected to the pressure sensor. The control unit detects a stop of the engine. After the stop of the engine is detected, the control unit closes the vent-shut valve to close the evaporated fuel processing system. The control unit determines whether the evaporated fuel processing system has leakage after the evaporated fuel processing system is closed based on the detected pressure and a predetermined determination value. The control unit prohibits the leakage determination if the detected pressure is not within a predetermined range. Thus, it is prevented that a state occurs where the vent-shut valve does not open due to the pressure of the evaporated fuel processing system when the leakage determination is being performed.
摘要翻译：提供一种用于确定蒸发燃料处理系统中的泄漏的装置。蒸发的燃料处理系统从燃料箱通过罐延伸到净化通道，来自燃料箱的蒸发燃料通过该净化通道被清除到发动机的进气歧管。该罐包括与大气连通的排气阀。该装置包括用于检测蒸发燃料处理系统的压力的压力传感器和连接到压力传感器的控制单元。控制单元检测发动机的停止。在检测到发动机停止之后，控制单元关闭排气关闭阀以关闭蒸发的燃料处理系统。控制单元基于检测到的压力和预定的确定值来确定在蒸发燃料处理系统关闭之后蒸发的燃料处理系统是否具有泄漏。如果检测到的压力不在预定范围内，则控制单元禁止泄漏确定。因此，当进行泄漏确定时，可以防止由于蒸发的燃料处理系统的压力而使通气阀不打开的状态。

2. 发明授权

US06935162B2 Apparatus for detecting leakage in an evaporated fuel processing system 失效
标题翻译：用于检测蒸发燃料处理系统中的泄漏的装置
公开(公告)号：US06935162B2
公开(公告)日：2005-08-30
申请号：US10674793
申请日：2003-10-01
申请人： Hideyuki Oki , Eisaku Gosyo
发明人： Hideyuki Oki , Eisaku Gosyo
IPC分类号： G01M3/26 , F02M25/08 , G01M3/04 , G01L27/00
CPC分类号： F02M25/0809
摘要： An apparatus for determining leakage in an evaporated fuel processing system is provided. The evaporated fuel processing system extends from a fuel tank to a purge passage through which evaporated fuel from the fuel tank is purged to an intake manifold of an engine. The apparatus comprises a pressure sensor for detecting a pressure of the evaporated fuel processing system, an atmospheric pressure sensor for detecting an atmospheric pressure, and a control unit connected to the pressure sensor and the atmospheric pressure sensor. The control unit detects a stop of the engine. A determination value used for the leakage determination is corrected according to the atmospheric pressure. The evaporated fuel processing system is closed after the stop of the engine is detected. It is determined whether the evaporated fuel processing system has leakage based on the pressure detected by the pressure sensor and the corrected determination value. Since the determination value is corrected according to the atmospheric pressure, leakage is accurately determined regardless of whether the vehicle is located in highlands or lowlands.
摘要翻译：提供一种用于确定蒸发燃料处理系统中的泄漏的装置。蒸发的燃料处理系统从燃料箱延伸到净化通道，来自燃料箱的蒸发的燃料通过该通道被吹扫到发动机的进气歧管。该装置包括用于检测蒸发燃料处理系统的压力的压力传感器，用于检测大气压的大气压传感器，以及连接到压力传感器和大气压力传感器的控制单元。控制单元检测发动机的停止。根据大气压力校正用于泄漏判定的判定值。在检测到发动机停止后，蒸发燃料处理系统关闭。基于由压力传感器检测到的压力和校正的确定值来确定蒸发燃料处理系统是否具有泄漏。由于根据大气压力来校正判定值，无论车辆是位于高地还是低地，都能够准确地确定泄漏。

3. 发明申请

US20070251214A1 Apparatus for detecting a state of a particulate filter 有权
标题翻译：用于检测微粒过滤器状态的装置
公开(公告)号：US20070251214A1
公开(公告)日：2007-11-01
申请号：US11790694
申请日：2007-04-26
申请人： Hiroaki Nishino , Kiyoshi Saito , Eisaku Gosyo
发明人： Hiroaki Nishino , Kiyoshi Saito , Eisaku Gosyo
IPC分类号： F01N3/00 , F01N7/00
CPC分类号： F02D41/029 , F01N11/00 , F01N2550/04 , F01N2900/0418 , F01N2900/1406 , F01N2900/1606 , F01N2900/1611 , F02D41/1448 , F02D2200/0406 , F02D2200/0812 , Y02T10/47
摘要： A particulate filter is provided in an exhaust system of the engine. Parameter values correlated with a flow amount of exhaust gas of the engine are determined, and differential pressure between upstream and downstream sides of the particulate filter is determined. The ratio of a variation rate of the parameter values correlated with the exhaust flow amount to a variation rate of the differential pressure is compared with a predetermined threshold value during transitional operation of the engine to determine the state of the particulate filter.
摘要翻译：在发动机的排气系统中设置有微粒过滤器。确定与发动机的废气流量相关的参数值，确定微粒过滤器的上游侧和下游侧之间的压差。在发动机的过渡操作期间将与排气流量相关的参数值的变化率与差压变化率的比率与预定阈值进行比较，以确定微粒过滤器的状态。

4. 发明申请

US20070251213A1 Scheme for detecting deterioration of a catalyst in an engine 失效
标题翻译：用于检测发动机中的催化剂的劣化的方案
公开(公告)号：US20070251213A1
公开(公告)日：2007-11-01
申请号：US11790535
申请日：2007-04-26
申请人： Kiyoshi Saito , Eisaku Gosyo , Hiroaki Nishino
发明人： Kiyoshi Saito , Eisaku Gosyo , Hiroaki Nishino
IPC分类号： F01N3/00 , F01N7/00
CPC分类号： F01N11/007 , F01N3/22 , F01N2550/02 , F01N2560/00 , F01N2560/02 , F01N2560/14 , F02D41/1441 , F02D41/1455 , F02D2041/1433 , F02D2200/0816 , Y02T10/47
摘要： Deterioration of a catalyst provided in an exhaust system of the engine is determined. Air-fuel ratio sensors are provided in the upstream side and the downstream side of the catalyst. Air-fuel ratio is changed. Based on the sensor outputs in the upstream die and the downstream side of the catalyst, a parameter of a catalyst model representing a state of the catalyst is identified. The parameter is compared with a threshold to determine a state of the catalyst.
摘要翻译：确定在发动机的排气系统中提供的催化剂的劣化。在催化剂的上游侧和下游侧设置有空燃比传感器。空燃比发生变化。基于上游模具中的传感器输出和催化剂的下游侧，识别表示催化剂状态的催化剂模型的参数。将参数与阈值进行比较以确定催化剂的状态。

5. 发明授权

US06908225B2 Failure diagnosing apparatus for an engine cooling water temperature sensor 失效
标题翻译：发动机冷却水温度传感器故障诊断装置
公开(公告)号：US06908225B2
公开(公告)日：2005-06-21
申请号：US10771498
申请日：2004-02-05
申请人： Toshinori Tsukamoto , Yoshitaka Takasuka , Eisaku Gosyo
发明人： Toshinori Tsukamoto , Yoshitaka Takasuka , Eisaku Gosyo
IPC分类号： F02D45/00 , F01P11/16 , F02D41/06 , F02D41/22 , G01K15/00 , G01K13/00
CPC分类号： F02D41/222 , F01P11/16 , F01P2025/08 , F01P2025/13 , F01P2031/00 , F02D41/062 , F02D2200/0414 , G01K15/007 , Y02T10/40
摘要： The invention provides a failure diagnosing apparatus having a first sensor for detecting a temperature of cooling water of an engine mounted on a vehicle and a second sensor for detecting a temperature associated with the engine. The apparatus calculates a first difference between a temperature detected by the first sensor at the time when the engine stops in a previous operating cycle and a temperature detected by the first sensor at the time when the engine starts in a current operating cycle is calculated. The apparatus also calculates a second difference between a temperature detected by the second sensor at the time when the engine stops in the previous operating cycle and a temperature detected by the second sensor at the time when the engine starts in the current operating cycle. It is determined whether the first sensor is faulty based on the first difference and the second difference.
摘要翻译：本发明提供了一种故障诊断装置，具有用于检测安装在车辆上的发动机的冷却水的温度的第一传感器和用于检测与发动机相关联的温度的第二传感器。该装置计算出在当前运行循环中发动机起动时发动机在先前操作循环中停止时由第一传感器检测到的温度与由第一传感器检测到的温度之间的第一差值。该装置还计算在前一操作循环中发动机停止时由第二传感器检测到的温度与在当前操作循环中发动机起动时第二传感器检测到的温度之间的第二差值。基于第一差异和第二差异来确定第一传感器是否有故障。

6. 发明申请

US20090211235A1 EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE 失效
标题翻译：用于内燃机的排气净化装置
公开(公告)号：US20090211235A1
公开(公告)日：2009-08-27
申请号：US12372306
申请日：2009-02-17
申请人： Daisuke SATO , Hidetaka Maki , Eisaku Gosyo , Atsushi Izumiura , Jun Iida
发明人： Daisuke SATO , Hidetaka Maki , Eisaku Gosyo , Atsushi Izumiura , Jun Iida
IPC分类号： F01N9/00
CPC分类号： F01N9/002 , F01N11/00 , F01N2550/04 , F01N2560/025 , F02B37/00 , F02D41/029 , F02D41/1445 , F02D41/1456 , F02D41/405 , Y02T10/47
摘要： An exhaust gas purifying apparatus for an internal combustion engine having a particulate filter provided in an exhaust system of the engine. Regeneration control is performed of burning particulates accumulated in the particulate filter. An oxygen concentration in exhaust gases flowing into the particulate filter is detected, and a flow rate of oxygen flowing into the particulate filter is calculated according to the detected oxygen concentration. An inflowing oxygen amount is calculated by integrating the oxygen flow rate when performing regeneration control. It is determined that an abnormality has occurred if the inflowing oxygen amount at a time when regeneration control ends is equal to or less than a predetermined amount.
摘要翻译：一种用于内燃机的废气净化装置，其具有设置在发动机的排气系统中的颗粒过滤器。对颗粒过滤器中积聚的燃烧颗粒进行再生控制。检测流入微粒过滤器的排气中的氧浓度，根据检测出的氧浓度计算流入微粒过滤器的氧气流量。通过在进行再生控制时积分氧气流量来计算流入的氧量。如果再生控制结束时的流入氧量等于或小于预定量，则确定发生异常。

7. 发明授权

US07429128B2 Failure determination system and method for temperature sensors, as well as engine control unit 失效
标题翻译：温度传感器的故障判定系统和方法，以及发动机控制单元
公开(公告)号：US07429128B2
公开(公告)日：2008-09-30
申请号：US11497265
申请日：2006-08-02
申请人： Atsushi Izumiura , Daisuke Sato , Eisaku Gosyo
发明人： Atsushi Izumiura , Daisuke Sato , Eisaku Gosyo
IPC分类号： G01K15/00 , G01K13/00 , G01K19/00 , G01C25/00 , G01D18/00
CPC分类号： G01K15/00 , F02D41/222 , F02D2200/0802 , G01K1/026 , G01K13/02 , G01K2205/04 , Y02T10/40
摘要： A failure determination system for determining failures of temperature sensors, which is capable of easily and accurately determining failures of the sensors in actual operating temperature ranges thereof, even when the ranges are different from each other. Temperatures detected by exhaust gas temperature sensors are stored as initial temperatures when the engine has stopped. Temperatures detected by the respective sensors after stoppage of the engine are made dimensionless based on the corresponding initial temperatures to thereby calculate dimensionless values. An estimated dimensionless value of a temperature to be detected when each sensor is normal is set in advance as an estimated normal value. Failures of the sensors are determined based on results of comparisons of the dimensionless values with the estimated normal value.
摘要翻译：一种用于确定温度传感器故障的故障确定系统，其能够容易且准确地确定在其实际工作温度范围内的传感器的故障，即使该范围彼此不同。废气温度传感器检测到的温度作为发动机停止时的初始温度进行存储。基于相应的初始温度，由发动机停止后的各个传感器检测到的温度是无量纲的，从而计算无量纲值。预先设定每个传感器正常时要检测的温度的无量纲值，作为估计的正常值。基于无量纲值与估计正常值的比较结果确定传感器的故障。

8. 发明申请

US20070047616A1 Failure determination system and method for temperature sensors, as well as engine control unit 失效
标题翻译：温度传感器的故障判定系统和方法，以及发动机控制单元
公开(公告)号：US20070047616A1
公开(公告)日：2007-03-01
申请号：US11497265
申请日：2006-08-02
申请人： Atsushi Izumiura , Daisuke Sato , Eisaku Gosyo
发明人： Atsushi Izumiura , Daisuke Sato , Eisaku Gosyo
IPC分类号： G01D18/00 , G01K1/14
CPC分类号： G01K15/00 , F02D41/222 , F02D2200/0802 , G01K1/026 , G01K13/02 , G01K2205/04 , Y02T10/40
摘要： A failure determination system for determining failures of temperature sensors, which is capable of easily and accurately determining failures of the sensors in actual operating temperature ranges thereof, even when the ranges are different from each other. Temperatures detected by exhaust gas temperature sensors are stored as initial temperatures when the engine has stopped. Temperatures detected by the respective sensors after stoppage of the engine are made dimensionless based on the corresponding initial temperatures to thereby calculate dimensionless values. An estimated dimensionless value of a temperature to be detected when each sensor is normal is set in advance as an estimated normal value. Failures of the sensors are determined based on results of comparisons of the dimensionless values with the estimated normal value.
摘要翻译：一种用于确定温度传感器故障的故障确定系统，其能够容易且准确地确定在其实际工作温度范围内的传感器的故障，即使该范围彼此不同。废气温度传感器检测到的温度作为发动机停止时的初始温度进行存储。基于相应的初始温度，由发动机停止后的各个传感器检测到的温度是无量纲的，从而计算无量纲值。预先设定每个传感器正常时要检测的温度的无量纲值，作为估计的正常值。基于无量纲值与估计正常值的比较结果确定传感器的故障。

9. 发明授权

US08387364B2 Exhaust gas purifying apparatus for internal combustion engine 失效
标题翻译：内燃机用废气净化装置
公开(公告)号：US08387364B2
公开(公告)日：2013-03-05
申请号：US12372306
申请日：2009-02-17
申请人： Daisuke Sato , Hidetaka Maki , Eisaku Gosyo , Atsushi Izumiura , Jun Iida
发明人： Daisuke Sato , Hidetaka Maki , Eisaku Gosyo , Atsushi Izumiura , Jun Iida
IPC分类号： F01N3/00
CPC分类号： F01N9/002 , F01N11/00 , F01N2550/04 , F01N2560/025 , F02B37/00 , F02D41/029 , F02D41/1445 , F02D41/1456 , F02D41/405 , Y02T10/47
摘要： An exhaust gas purifying apparatus for an internal combustion engine having a particulate filter provided in an exhaust system of the engine. Regeneration control is performed of burning particulates accumulated in the particulate filter. An oxygen concentration in exhaust gases flowing into the particulate filter is detected, and a flow rate of oxygen flowing into the particulate filter is calculated according to the detected oxygen concentration. An inflowing oxygen amount is calculated by integrating the oxygen flow rate when performing regeneration control. It is determined that an abnormality has occurred if the inflowing oxygen amount at a time when regeneration control ends is equal to or less than a predetermined amount.
摘要翻译：一种用于内燃机的废气净化装置，其具有设置在发动机的排气系统中的颗粒过滤器。对颗粒过滤器中积聚的燃烧颗粒进行再生控制。检测流入微粒过滤器的排气中的氧浓度，根据检测出的氧浓度计算流入微粒过滤器的氧气流量。通过在进行再生控制时积分氧气流量来计算流入的氧量。如果再生控制结束时的流入氧量等于或小于预定量，则确定发生异常。

10. 发明授权

US07509210B2 Abnormality determination apparatus and method for blow-by gas feedback device, and engine control unit 有权
标题翻译：用于窜气反馈装置和发动机控制单元的异常确定装置和方法
公开(公告)号：US07509210B2
公开(公告)日：2009-03-24
申请号：US11896341
申请日：2007-08-31
申请人： Masaki Tsuda , Atsushi Izumiura , Eisaku Gosyo , Hirofumi Hara
发明人： Masaki Tsuda , Atsushi Izumiura , Eisaku Gosyo , Hirofumi Hara
IPC分类号： F01M13/00
CPC分类号： F02D41/221 , F02D41/18 , F02M25/06 , F02M26/53
摘要： An abnormality determination apparatus and method for a blow-by gas feedback device, and an engine control unit are provided for improving the accuracy of abnormality determination even when an intake air amount controller is provided in an intake system at a location downstream of a joint of a blow-by gas passage. The blow-by gas feedback device feeds a blow-by gas back to an intake system of an internal combustion engine through a blow-by gas passage connected to the intake system through a joint. The abnormality determination apparatus comprises an intake air amount sensor provided in the intake system at a location upstream of the joint for detecting an intake air amount, an intake air amount controller provided in the intake system at a location downstream of the joint for controlling the intake air amount, and an ECU for determining an abnormality of the blow-by gas feedback device based on the intake air amount detected by the intake air amount sensor after the intake air amount has changed due to the operation of the intake air amount controller.
摘要翻译：提供了一种用于窜气反馈装置的异常判定装置和方法以及发动机控制单元，用于提高异常判定的精度，即使当进气系统中在进气系统中的下游位置处的进气系统中一个窜气通道。窜气反馈装置通过连接到进气系统的窜气通道将窜气输送回内燃机的进气系统。异常判定装置包括：进气系统，设置在进气系统的上游侧的位置处，用于检测进气量;进气系统，其设置在进气系统的下游位置，用于控制进气口空气量，以及用于根据进气量控制器的操作使进气量传感器检测到的进气量由进气量控制器的运转而改变后，根据由进气量传感器检测到的进气量来判定窜气反馈装置的异常的ECU。

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