公开(公告)号：US06681567B2

公开(公告)日：2004-01-27

申请号：US09996719

申请日：2001-11-30

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

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

IPC: F01N300

CPC classification number: F02D41/005 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/0878 ,  F01N13/009 ,  F01N2250/12 ,  F01N2570/12 ,  F02D41/027 ,  F02D41/064 ,  F02D41/086 ,  F02D2041/001 ,  F02D2041/0017 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02P5/1506 ,  Y02T10/46 ,  Y02T10/47

Abstract: A control system for an internal combustion engine having an exhaust system, an intake system, and an exhaust gas recirculation mechanism for recirculating exhaust gases from the exhaust system to the intake system is disclosed. The exhaust system is provided with an adsorbent for adsorbing hydrocarbon. When the adsorbent has adsorbed the hydrocarbon and the engine is operating in an idling condition, an intake air amount of the engine is increased and an ignition timing of said engine is retarded, and at the same time, the exhaust gas recirculation is performed to recirculate the hydrocarbon desorbed from the adsorbent to the intake system.

Abstract translation: 公开了一种具有排气系统，进气系统和废气再循环机构的内燃机的控制系统，用于将废气从排气系统再循环到进气系统。 排气系统设有用于吸附碳氢化合物的吸附剂。 当吸附剂吸附碳氢化合物并且发动机在空转状态下运转时，发动机的进气量增加并且发动机的点火正时被延迟，并且同时进行排气再循环 烃从吸附剂解吸到进气系统。

公开(公告)号：US06427670B2

公开(公告)日：2002-08-06

申请号：US09838184

申请日：2001-04-20

Applicant: Hiroyuki Goto ,  Shusuke Akazaki ,  Hideharu Yamazaki ,  Yoshihito Sakurai

Inventor： Hiroyuki Goto ,  Shusuke Akazaki ,  Hideharu Yamazaki ,  Yoshihito Sakurai

IPC: F02B4300

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

Abstract: 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.

Abstract translation: 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：US06422006B1

公开(公告)日：2002-07-23

申请号：US09835414

申请日：2001-04-17

Applicant: Kenichi Ohmori ,  Shusuke Akazaki ,  Norihito Watanabe ,  Kei Machida

Inventor： Kenichi Ohmori ,  Shusuke Akazaki ,  Norihito Watanabe ,  Kei Machida

IPC: F01N300

Abstract: An exhaust gas purifying apparatus for an internal combustion engine is provided for simultaneously realizing sufficient recovery of the adsorbing capability of an adsorbent and limitation to an increase in exhaust resistance. The exhaust gas purifying apparatus for an internal combustion engine comprises a flow path switching valve for switching an exhaust gas flow path to a bypass exhaust passage or to a main exhaust passage, three-way catalysts, and an HC adsorbent arranged in the bypass exhaust passage for adsorbing hydrocarbons in exhaust gases and fully desorbing the adsorbed hydrocarbons when it is heated to a full desorption temperature or higher. A troidal passage of the main exhaust passage completely surrounds a portion of the bypass exhaust passage in which the HC adsorbent is arranged. A ratio S1/S2 of the cross-sectional area S2 of the troidal passage to the cross-sectional area of a flow-in passage is set in a range from 1.0 at which the exhaust resistance begins gradually decreasing as the ratio S2/S1 increases to 3.0 at which the HC adsorbent can be heated to the full desorption temperature or higher.

公开(公告)号：US06401698B1

公开(公告)日：2002-06-11

申请号：US09526747

申请日：2000-03-16

Applicant: Hideharu Yamazaki ,  Shusuke Akazaki ,  Akifumi Otaka ,  Hiroyuki Goto

Inventor： Hideharu Yamazaki ,  Shusuke Akazaki ,  Akifumi Otaka ,  Hiroyuki Goto

IPC: F02M2102

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

Abstract: 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.

Abstract translation: 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：US06276131B1

公开(公告)日：2001-08-21

申请号：US09465404

申请日：1999-12-17

Applicant: Masaki Ueno ,  Yuji Yasui ,  Yoshihisa Iwaki ,  Tadashi Sato ,  Shusuke Akazaki

Inventor： Masaki Ueno ,  Yuji Yasui ,  Yoshihisa Iwaki ,  Tadashi Sato ,  Shusuke Akazaki

IPC: F01N300

CPC classification number: F02P5/1506 ,  F02D31/003 ,  F02D37/02 ,  F02D41/0255 ,  F02D2041/1422 ,  F02P5/1508 ,  Y02T10/26 ,  Y02T10/46

Abstract: While the amount of intake air introduced into an internal combustion engine is being increased by an intake air quantity control unit, an ignition timing control unit manipulates the ignition timing of the internal combustion engine to converge the rotational speed of the internal combustion engine to a target rotational speed according to a feedback control process (PI control process). The ignition timing control unit has a function to vary the feedback gain of the feedback control process depending on the ignition timing, such that the feedback gain is smaller as the ignition timing being manipulated is more retarded.

Abstract translation: 当通过进气量控制单元增加引入内燃机的进气量时，点火正时控制单元操纵内燃机的点火正时以将内燃机的转速收敛到目标 转速根据反馈控制过程（PI控制过程）。 点火正时控制单元具有根据点火正时来改变反馈控制过程的反馈增益的功能，使得当被操纵的点火正时被延迟时反馈增益较小。

公开(公告)号：US06266605B1

公开(公告)日：2001-07-24

申请号：US09465766

申请日：1999-12-17

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Tadashi Sato ,  Masaki Ueno ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Tadashi Sato ,  Masaki Ueno ,  Yoshihisa Iwaki

IPC: F02D4114

CPC classification number: F02D41/1458 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1441 ,  F02D41/1456 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1426 ,  F02D2041/1431 ,  F02D2041/1433 ,  G05B13/0255

Abstract: A plant control system has a reference value setting unit for variably setting a reference value for an air-fuel ratio to be given to an exhaust system including a catalytic converter, depending on a component based on an adaptive control law of a manipulated variable of the air-fuel ratio generated by a controller according to an adaptive sliding mode control process in order to converge an output of an O2 sensor disposed downstream of the catalytic converter to a target value. The plant control system also has an estimator for estimating the difference between an output of the O2 sensor after the dead time of the exhaust system and a target value therefor, using the difference between the set reference value and a detected value of the air-fuel ratio, and giving the estimated difference to the controller.

Abstract translation: 工厂控制系统具有参考值设定单元，用于根据构成要素的操作变量的自适应控制定律，根据构成要素，对包含催化转换器的排气系统进行空燃比的基准值的可变设定 由控制器根据自适应滑动模式控制过程产生的空燃比，以将设置在催化转化器下游的O2传感器的输出收敛到目标值。 工厂控制系统还具有用于估计在排气系统的死区时间之后的O 2传感器的输出与其目标值之间的差异的估计器，使用设定的参考值与空燃比的检测值之间的差 比率，并给予控制器估计的差异。

公开(公告)号：US6082099A

公开(公告)日：2000-07-04

申请号：US153032

申请日：1998-09-15

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

IPC: F02D45/00 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  G05B13/00 ,  G05B13/02 ,  G05B13/04 ,  G05B21/02 ,  F01N3/00

CPC classification number: F02D41/008 ,  F02D41/1403 ,  F02D41/1441 ,  F02D41/1456 ,  G05B13/047 ,  G05B21/02 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D41/1402

Abstract: A plant control system for controlling a plant includes an actuator for generating an input to the plant and a first detector for detecting an output from the plant. A manipulated variable determining unit determines a manipulated variable which determines the input to the plant according to a sliding mode control process such that an output from the first detector will be equalized to a predetermined target value. The manipulated variable determining unit determines the manipulated variable to converge a plurality of state quantities, which comprise differences between a plurality of present and previous time-series data of the output of the first detector and the target value, onto a balanced point on a hyperplane for the sliding mode control process, which is defined by a linear function having variables represented respectively by the state quantities.

Abstract translation: 用于控制设备的设备控制系统包括用于产生对工厂的输入的致动器和用于检测来自所述设备的输出的第一检测器。 操作变量确定单元根据滑动模式控制处理来确定确定对工厂的输入的操作变量，使得来自第一检测器的输出将被等于预定的目标值。 操作变量确定单元确定操纵变量以将包括第一检测器的输出的多个当前时间序列数据和目标值之间的差异的多个状态量收敛到超平面上的平衡点上 对于滑动模式控制过程，其由具有分别由状态量表示的变量的线性函数定义。

公开(公告)号：US6026793A

公开(公告)日：2000-02-22

申请号：US143542

申请日：1998-08-28

Applicant: Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Shusuke Akazaki ,  Hiroshi Kitagawa

Inventor： Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Shusuke Akazaki ,  Hiroshi Kitagawa

IPC: F02D41/14 ,  G05B13/02 ,  G05B13/04 ,  G05D11/13 ,  F02M25/00

CPC classification number: G05B13/042 ,  F02D41/1402 ,  F02D41/1456 ,  F02D41/2454 ,  F02D41/2477 ,  F02D2041/1415 ,  F02D2041/1418 ,  F02D2041/143 ,  F02D2041/1433 ,  F02D41/2483

Abstract: A control system for a plant includes a sensor for detecting an output from the plant, an adaptive controller for controlling a manipulated variable applied to control of the plant in a manner such that an output from the sensor becomes equal to a desired value, and an adaptive parameter vector-adjusting mechanism for adjusting an adaptive parameter vector used by the adaptive controller. The adaptive parameter vector-adjusting mechanism is constructed such that an updating component for updating the adaptive parameter vector is added to an initial value of the adaptive parameter vector, and updates the adaptive parameter vector by multiplying at least part of preceding values of the updating component by a predetermined coefficient which is larger than 0 but smaller than 1.

Abstract translation: 一种用于设备的控制系统包括用于检测来自所述设备的输出的传感器，用于以使得所述传感器的输出变为等于所需值的方式控制施加于所述设备的控制的操纵变量的自适应控制器，以及 自适应参数矢量调整机制，用于调整自适应控制器使用的自适应参数矢量。 自适应参数矢量调整机构被构造成使得用于更新自适应参数矢量的更新部件被添加到自适应参数矢量的初始值，并且通过将更新部件的至少一部分先前值相乘来更新自适应参数矢量 通过大于0但小于1的预定系数。

公开(公告)号：US5852930A

公开(公告)日：1998-12-29

申请号：US833091

申请日：1997-04-04

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Kohei Hanada

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Kohei Hanada

IPC: F02D41/14 ,  F01N3/00

CPC classification number: F02D41/1473 ,  F02D41/1403 ,  F02D41/1441 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D41/1402 ,  F02D41/1456

Abstract: An air-fuel control system for use with an internal combustion engine has a catalytic converter disposed in an exhaust system of the engine, for purifying an exhaust gas emitted from the engine, a first exhaust gas sensor disposed in the exhaust system for detecting an air-fuel ratio of the exhaust gas upstream of the catalytic converter, a second exhaust gas sensor disposed in the exhaust system for detecting the concentration of a component of the exhaust gas which has passed through the catalytic converter, downstream of the catalytic converter, and a control unit for controlling an air-fuel ratio of the engine based on outputs from the first exhaust gas sensor and the second exhaust gas sensor. The control unit includes an adaptive sliding mode controller for determining a correction quantity to correct the air-fuel ratio of the engine so as to equalize the concentration of the component of the exhaust gas downstream of the catalytic converter to a predetermined appropriate value, according to an adaptive sliding mode control process based on the output from the second exhaust gas sensor, and a feedback controller for controlling a rate at which fuel is supplied to the engine so as to converge the concentration of the component of the exhaust gas downstream of the catalytic converter toward the predetermined appropriate value, based on the correction quantity and the output from the first exhaust gas sensor.

Abstract translation: 一种与内燃机一起使用的空气燃料控制系统，具有设置在发动机的排气系统中的用于净化从发动机排出的排气的催化转化器，设置在排气系统中的第一排气传感器，用于检测空气 - 催化转化器上游排气的燃料比，设置在排气系统中的第二废气传感器，用于检测通过催化转化器的排气的成分浓度，催化转化器的下游，以及 控制单元，用于基于来自第一排气传感器和第二排气传感器的输出来控制发动机的空燃比。 控制单元包括自适应滑动模式控制器，用于确定校正量以校正发动机的空燃比，以便将催化转化器下游的排气的分量的浓度相等到预定的适当值，根据 基于来自第二废气传感器的输出的自适应滑动模式控制过程和用于控制向发动机供应燃料的速率的反馈控制器，以使催化剂下游的排气的组分的浓度 转换器基于校正量和来自第一废气传感器的输出而朝向预定的适当值。

公开(公告)号：US5781875A

公开(公告)日：1998-07-14

申请号：US606384

申请日：1996-02-23

Applicant: Hidetaka Maki ,  Shusuke Akazaki ,  Yusuke Hasegawa ,  Isao Komoriya

Inventor： Hidetaka Maki ,  Shusuke Akazaki ,  Yusuke Hasegawa ,  Isao Komoriya

IPC: F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  G06G7/70

CPC classification number: F02D41/008 ,  F02D41/1402 ,  F02D41/1473 ,  F02D41/1477 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1422 ,  F02D2041/1426 ,  F02D2041/1433 ,  F02D41/1456

Abstract: A system for controlling fuel metering for an internal combustion engine provided with a first feedback loop that calculates a first feedback correction coefficient using an adaptive control law to correct a quantity of fuel injection such that a detected air/fuel ratio is brought to a desired air/fuel ratio, a second feedback loop that calculates a second coefficient using a PID control law to similarly correct the quantity of fuel injection, and a third feedback loop that calculates a third coefficient using a PID controller to correct the quantity of fuel injection such that air/fuel ratio variance among the cylinders decreases. Either of the first or second coefficient is selected and based on the selected coefficient, the feedback gains of the third feedback loop are determined.

Abstract translation: 一种用于控制用于内燃机的燃料计量的系统，该内燃机设置有第一反馈回路，该第一反馈回路使用自适应控制定律来计算第一反馈校正系数，以校正燃料喷射量，使得检测到的空气/燃料比达到期望空气 /燃料比，第二反馈回路，其使用PID控制定律来计算第二系数以类似地校正燃料喷射量;以及第三反馈回路，其使用PID控制器计算第三系数，以校正燃料喷射量，使得 气缸之间的空气/燃料比差异减小。 选择第一或第二系数中的任一个，并且基于所选择的系数，确定第三反馈回路的反馈增益。