公开(公告)号：US06401698B1

公开(公告)日：2002-06-11

申请号：US09526747

申请日：2000-03-16

申请人： Hideharu Yamazaki ,  Shusuke Akazaki ,  Akifumi Otaka ,  Hiroyuki Goto

发明人： Hideharu Yamazaki ,  Shusuke Akazaki ,  Akifumi Otaka ,  Hiroyuki Goto

IPC分类号： F02M2102

CPC分类号： F02D41/0027 ,  F02D19/025 ,  F02D19/027 ,  F02D41/221 ,  F02D2041/224 ,  F02M21/0221 ,  F02M21/0233 ,  F02M21/0242 ,  F02M21/029 ,  Y02T10/32 ,  Y02T10/40

摘要： A vehicle fuel gas supply system includes, a fuel line supplying a fuel gas to a gas engine, a shut-off valve and a pressure sensor disposed on said fuel line, and a control section. The pressure sensor is disposed closer to the gas engine in comparison with the shut-off valve. The control section closes the shut-off valve based on a failure diagnostic signal, calculates a pressure drop rate based on pressure information taken in from the pressure sensor after the closure of the shut-off valve and an elapsed time, and judges that the shut-off valve is in a failure state when the pressure drop rate so calculated is smaller than a predetermined pressure drop rate threshold value.

摘要翻译： 一种车辆燃料气体供给系统，具备向燃气发动机供给燃料气体的燃料管路，设置在所述燃料管路上的截止阀和压力传感器以及控制部。 压力传感器比截止阀更靠近燃气发动机。 控制部基于故障诊断信号关闭截止阀，根据关闭截止阀后的压力传感器的压力信息和经过时间计算压降率，并判断为关闭 当所计算的压降速率小于预定压降速率阈值时，阀门处于故障状态。

公开(公告)号：US06390075B1

公开(公告)日：2002-05-21

申请号：US09523308

申请日：2000-03-10

申请人： Hideharu Yamazaki ,  Shusuke Akazaki ,  Akifumi Otaka ,  Hiroyuki Goto

发明人： Hideharu Yamazaki ,  Shusuke Akazaki ,  Akifumi Otaka ,  Hiroyuki Goto

IPC分类号： F02M2102

CPC分类号： F02D19/027 ,  B60K15/013 ,  F02D19/025 ,  F02M21/0221 ,  F02M21/0233 ,  F02M21/0242 ,  F02M21/029 ,  F17C2265/065 ,  F17C2270/0139 ,  Y02T10/32

摘要： A vehicle fuel gas supply system includes a fuel line supplying a fuel gas to a gas engine, a shut-off valve and a pressure sensor disposed on said fuel line, and a control section. The pressure sensor is disposed closer to said gas engine in comparison with said shut-off valve. The control section closes the shut-off valve being opened, starts to count the time of a shut-off valve closing timer. Then, the control section opens the shut-off vale when the shut-off valve closing timer counts up, simultaneously therewith measures a pressure by the pressure sensor to store the pressure as an initial pressure, and starting to count the time of a diagnostic timer. Further, the control section measures a second pressure by the pressure sensor when the diagnostic timer counts up to store the second pressure as a final pressure value, and judges that the shut-off value is in a failure state when a pressure increase rate obtained from the initial pressure value and the final pressure value is smaller than a predetermined pressure increase rate threshold value.

摘要翻译： 车辆燃料气体供给系统包括向燃气发动机供给燃料气体的燃料管路，切断阀和设置在所述燃料管路上的压力传感器，以及控制部。 与所述截止阀相比，压力传感器设置成更靠近所述燃气发动机。 控制部分关闭截止阀打开，开始计数截止阀关闭定时器的时间。 然后，当关闭阀关闭定时器向上计数时，控制部分打开关闭阀，同时测量压力传感器的压力以将压力存储为初始压力，并开始计数诊断定时器的时间 。 此外，当诊断定时器向上计数以存储第二压力作为最终压力值时，控制部分通过压力传感器测量第二压力，并且当从...获得的压力增加率判断为截止值为失败状态时 初始压力值和最终压力值小于预定的压力增加率阈值。

公开(公告)号：US06427670B2

公开(公告)日：2002-08-06

申请号：US09838184

申请日：2001-04-20

申请人： Hiroyuki Goto ,  Shusuke Akazaki ,  Hideharu Yamazaki ,  Yoshihito Sakurai

发明人： Hiroyuki Goto ,  Shusuke Akazaki ,  Hideharu Yamazaki ,  Yoshihito Sakurai

IPC分类号： F02B4300

CPC分类号： F02D19/022 ,  F02B43/00 ,  F02D19/025 ,  F02D19/027 ,  F02D41/0027 ,  F02D2041/226 ,  F02M21/0215 ,  F02M21/0242 ,  F02M21/0278 ,  Y02T10/32

摘要： A first cutoff valve 24 and a second cutoff valve 41 are closed in a state in which an internal combustion engine 1 is stopped, and a reducing amount of a pressure P0 in a high pressure passageway 11 after the passage of a predetermined decision time T0 and a reducing amount of a pressure P2 in a low pressure passageway 12 after the passage of a predetermined decision time T2 are measured. When the reducing amount of the first pressure P0 is equal to or larger than a predetermined reducing amount &Dgr;P0, it is decided that a leakage is generated in the high pressure passageway 11. When the reducing amount of the second pressure P2 is equal to or larger than a predetermined reducing amount &Dgr;P2, it is decided that a leakage is generated in the low pressure passageway 12.

摘要翻译： 第一截止阀24和第二截止阀41在内燃机1停止的状态下被封闭，并且在经过预定的判定时间T0之后的高压通道11中的压力P0的减小量和 测量经过预定判定时间T2后低压通路12内的压力P2的减少量。 当第一压力P0的减少量等于或大于预定减少量DELTAP0时，判定在高压通道11中产生泄漏。当第二压力P2的减少量等于或大于 超过预定的减少量DELTAP2，则判定在低压通路12中产生泄漏。

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：US08255119B2

公开(公告)日：2012-08-28

申请号：US12081550

申请日：2008-04-17

申请人： Takafumi Komori ,  Shusuke Akazaki ,  Takahide Mizuno

发明人： Takafumi Komori ,  Shusuke Akazaki ,  Takahide Mizuno

IPC分类号： B60G17/016

CPC分类号： B60T8/172 ,  B60T8/174 ,  B60T2230/02 ,  B60W40/103 ,  B60W2050/0037 ,  B60W2520/14 ,  B60W2540/10

摘要： A vehicle body slip angle-estimating device which, in estimating a vehicle body slip angle with an algorithm using a nonlinear model, is capable of accurately estimating a vehicle body slip angle irrespective of whether the frequency of occurrence of a state during traveling of the vehicle. A basic value-calculating section calculates a basic value of a vehicle body slip angle with an algorithm using a neural network model. A turning state-determining section determines whether the vehicle is in a predetermined limit turning traveling state. A correction value-calculating section calculates a correction value with an algorithm using a predetermined linear model when the vehicle is in the predetermined state. In the other cases, the correction value is set to 0. A straight traveling-determining section sets the angle to the sum of the basic value and the correction value when the vehicle is in a turning traveling state.

摘要翻译： 一种车体滑移角估计装置，其在使用非线性模型的算法估计车体滑移角时能够精确地估计车体滑移角，而与车辆行驶中的状态的发生频率无关 。 基本值计算部使用神经网络模型来算出车体滑移角的基本值。 转动状态判定部判定车辆是否处于规定的转弯行驶状态。 当车辆处于预定状态时，校正值计算部分使用预定线性模型的算法来计算校正值。 在其他情况下，校正值被设定为0.直行驶确定部分在车辆处于转弯行驶状态时将角度设置为基本值和校正值之和。

公开(公告)号：US20090293842A1

公开(公告)日：2009-12-03

申请号：US12434995

申请日：2009-05-04

申请人： Shusuke Akazaki ,  Takafumi Komori

发明人： Shusuke Akazaki ,  Takafumi Komori

IPC分类号： F02P5/00

CPC分类号： F02P5/153 ,  F02D35/023 ,  F02D35/028 ,  F02D41/068 ,  Y02T10/46

摘要： An ignition timing control system for an internal combustion engine, which is capable of properly carrying out ignition timing control over a wide control range, thereby making it possible to improve fuel economy, and is capable of suppressing combustion fluctuation, thereby making it possible to improve drivability. Ignition timing is calculated, when the engine is determined to be in an intense combustion mode, such that a largest in-cylinder pressure angle at which in-cylinder pressure becomes largest converges to a target angle, whereas when the engine is determined to be in a weak combustion mode, the same is calculated by feedback, based on the target angle and combustion state parameters indicative of a combustion state in the cylinder.

摘要翻译： 一种用于内燃机的点火正时控制系统，其能够在宽的控制范围内适当地进行点火正时控制，从而可以提高燃料经济性，并且能够抑制燃烧波动，从而可以改善 驾驶性能。 当发动机被确定为强燃烧模式时，计算点火正时，使得缸内压力变得最大的最大缸内压力角收敛到目标角度，而当发动机被确定为处于 弱燃烧模式，通过反馈计算，基于指示气缸中的燃烧状态的目标角度和燃烧状态参数来计算。

公开(公告)号：US20070221170A1

公开(公告)日：2007-09-27

申请号：US11703211

申请日：2007-02-07

申请人： Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

发明人： Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

IPC分类号： F02M7/00 ,  F02D41/00 ,  G06F17/00

CPC分类号： F02D35/028 ,  F02D35/023 ,  F02D41/0085 ,  F02D41/1458

摘要： An air-fuel ratio controlling apparatus includes an internal pressure detector for detecting an internal pressure of a combustion chamber of the engine. The apparatus estimates a motoring pressure of the engine and determines a start-of-combustion time, a time point when a difference between the internal pressure and the motoring pressure exceeds a predetermined value in a compression stroke and a combustion stroke of the engine. Firing delay for each cylinder is calculated from as a duration from sparking to the start-of-combustion time. Air-fuel ratio of each cylinder is estimated based on the firing delay and fuel injection amount for each cylinder is calculated to make the air-fuel ratio of plural cylinders uniform.

摘要翻译： 空燃比控制装置包括用于检测发动机的燃烧室的内部压力的内部压力检测器。 该装置估计发动机的运转压力，并且确定起动燃烧时间，即内压和电动压力之间的差在发动机的压缩冲程和燃烧冲程中超过预定值的时间点。 从火花到燃烧时间的持续时间计算每个气缸的燃烧延迟。 基于燃烧延迟来估算每个气缸的空燃比，并计算每个气缸的燃料喷射量，以使多个气缸的空燃比均匀。

公开(公告)号：US06922626B2

公开(公告)日：2005-07-26

申请号：US10778242

申请日：2004-02-17

申请人： Tetsuya Ishiguro ,  Shusuke Akazaki ,  Yuji Yasui ,  Takahide Mizuno

发明人： Tetsuya Ishiguro ,  Shusuke Akazaki ,  Yuji Yasui ,  Takahide Mizuno

IPC分类号： F02M25/07 ,  F02D21/08 ,  F02D41/00 ,  F02D41/14

CPC分类号： F02D41/1403 ,  F02D41/0077 ,  F02D41/1402 ,  F02D41/1456 ,  F02D2041/1415 ,  F02D2041/1423 ,  F02D2041/1433 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/503 ,  F02M26/47 ,  F02M26/53 ,  F02M2026/004 ,  Y02T10/47

摘要： A control apparatus for an exhaust gas recirculation valve is disclosed. The exhaust gas recirculation valve is provided in an exhaust gas recirculation pipe for recirculating exhaust gases from an internal combustion engine to an intake system of the engine. The exhaust gas recirculation valve controls an exhaust gas recirculation amount. An opening of the exhaust gas recirculation valve is controlled to a target opening, based on a controlled object model which is obtained by modeling the exhaust gas recirculation valve.

摘要翻译： 公开了一种用于废气再循环阀的控制装置。 排气再循环阀设置在排气再循环管中，用于将来自内燃机的废气再循环到发动机的进气系统。 废气再循环阀控制废气再循环量。 基于通过对废气再循环阀进行建模获得的受控对象模型，将排气再循环阀的开口控制到目标开度。

公开(公告)号：US06640540B2

公开(公告)日：2003-11-04

申请号：US09978020

申请日：2001-10-17

申请人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Yuji Yasui

发明人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Yuji Yasui

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/30 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0097 ,  F01N2430/06 ,  F01N2550/03 ,  F01N2570/12 ,  Y02T10/47

摘要： An adsorbent state determining apparatus is provided for accurately determining the state of an adsorbent including a deterioration as well as for allowing for recovery of the adsorbent if its adsorbent performance can be restored. The adsorbent state determining apparatus determines the state of an adsorbent for adsorbing hydrocarbons contained in exhaust gases. An upstream and a downstream temperature sensor are provided at upstream and downstream locations of the adsorbent in an exhaust system for detecting temperatures of exhaust gases upstream and downstream of the adsorbent. An engine water temperature sensor detects an operating state of the engine. An ECU estimates the temperature of the exhaust gas which should be detected downstream of the adsorbent during adsorption of the adsorbent based on the upstream temperature detected by the upstream temperature sensor and an engine water temperature of the engine detected by the engine water temperature sensor. The ECU then compares the estimated downstream temperature with the detected downstream temperature detected by the downstream temperature sensor during adsorption of the adsorbent to determine the adsorption state of the adsorbent.

公开(公告)号：US06550449B2

公开(公告)日：2003-04-22

申请号：US09741837

申请日：2000-12-22

申请人： Shusuke Akazaki ,  Yoshihisa Iwaki ,  Masaki Ueno

发明人： Shusuke Akazaki ,  Yoshihisa Iwaki ,  Masaki Ueno

IPC分类号： F02D4116

CPC分类号： F02D41/0245 ,  F02D37/02 ,  F02P5/1506 ,  Y02T10/26 ,  Y02T10/46

摘要： A control system for an internal combustion engine having a catalyst arranged in the exhaust system is disclosed. In the control system, catalyst temperature rise accelerating control is executed by increasing the intake air amount immediately after starting of the engine and retarding the ignition timing to make the rotational speed of the engine coincide with a target rotational speed. The air-fuel ratio of an air-fuel mixture supplied to the engine is controlled to a lean region with respect to the stoichiometric ratio immediately after starting of the engine. The degree of making the air-fuel ratio leaner is suppressed when the retard amount of the ignition timing during the execution of the catalyst temperature rise accelerating control is less than a predetermined retard amount.

摘要翻译： 公开了一种具有布置在排气系统中的催化剂的内燃机的控制系统。 在控制系统中，催化剂升温加速控制是通过增加发动机起动后立即进气量而延迟点火正时，使发动机的转速与目标转速一致。 提供给发动机的空气燃料混合物的空燃比被控制为相对于发动机起动之后的化学计量比的稀薄区域。 当执行催化剂温度升高加速控制期间的点火正时的延迟量小于预定的延迟量时，抑制使空燃比更稀的程度。