公开(公告)号：US06292739B1

公开(公告)日：2001-09-18

申请号：US09465765

申请日：1999-12-17

申请人： Yuji Yasui ,  Shusuke Akazaki ,  Tadashi Sato ,  Masaki Ueno ,  Yoshihisa Iwaki ,  Hiroshi Tagami ,  Shuji Nagatani

发明人： Yuji Yasui ,  Shusuke Akazaki ,  Tadashi Sato ,  Masaki Ueno ,  Yoshihisa Iwaki ,  Hiroshi Tagami ,  Shuji Nagatani

IPC分类号： F02D4114

CPC分类号： F02D41/008 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1456 ,  F02D41/1487 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1426 ,  F02D2041/1431 ,  F02D2041/1433

摘要： An allowable range (adaptive allowable range) for limiting a manipulated variable generated in order to converge the difference between an output from an O2 sensor disposed downstream of a catalytic converter and a target value thereof to “0” is sequentially updated depending on how the manipulated variable deviates from the allowable range.

摘要翻译： 为了将设置在催化转化器的下游的O2传感器的输出与目标值的输出之间的差积分为“0”，限制所产生的操作变量的允许范围（自适应容许范围）根据被操纵的 变量偏离容许范围。

公开(公告)号：US06230486B1

公开(公告)日：2001-05-15

申请号：US09465395

申请日：1999-12-17

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

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

IPC分类号： F01N300

CPC分类号： F02D41/1441 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1456 ,  G05B13/0255

摘要： 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 manipulated variable generated by the controller represents the difference between the air-fuel ratio and the reference value, required to converge the output of the O2 sensor to the target value.

摘要翻译： 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。 由控制器产生的操纵变量表示将O2传感器的输出收敛到目标值所需的空燃比和参考值之间的差。

公开(公告)号：US06276131B1

公开(公告)日：2001-08-21

申请号：US09465404

申请日：1999-12-17

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

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

IPC分类号： F01N300

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

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： F02D4114

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US06195988B1

公开(公告)日：2001-03-06

申请号：US09499975

申请日：2000-02-08

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

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

IPC分类号： F01N300

CPC分类号： F02D41/1458 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1406 ,  F02D41/1477 ,  F02D41/1481 ,  F02D2041/1422 ,  F02D2041/1423 ,  F02D2041/1431

摘要： An object system for generating an output signal of an O2 sensor from a target air-fuel ratio is expressed as a model including a response delay element and a dead time element. Data of identified values of parameters of the model are sequentially generated by an identifier. Data of an estimated value of the output signal of the O2 sensor after a dead time of the object system is sequentially generated by an estimator. The target air-fuel ratio is generated according to an adaptive sliding mode control process performed by a sliding mode controller using the data of the identified and estimated values. The air-fuel ratio of an internal combustion engine is manipulated on the basis of the target air-fuel ratio according to a feed-forward control process.

摘要翻译： 用于从目标空燃比产生O2传感器的输出信号的目标系统被表示为包括响应延迟元件和死区时间元件的模型。 通过标识符顺序地生成模型的参数的标识值的数据。 由对象系统的死区时间之后的O2传感器的输出信号的估计值的数据由估计器依次产生。 目标空燃比根据滑动模式控制器使用所识别的和估计值的数据执行的自适应滑动模式控制处理来生成。 根据前馈控制处理，基于目标空燃比来操作内燃机的空燃比。

公开(公告)号：US06189317B1

公开(公告)日：2001-02-20

申请号：US09411232

申请日：1999-10-04

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

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

IPC分类号： F01N300

CPC分类号： B60W10/06 ,  B60K6/42 ,  B60K6/54 ,  F02D31/005 ,  F02D37/02 ,  F02D41/024 ,  F02P5/1506 ,  F02P5/1508 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/46 ,  Y10S903/903 ,  Y10S903/917

摘要： An apparatus for controlling an internal combustion engine has an amount-of-intake-air control unit for generating a command value for the opening of a flow control valve in an intake passage of the engine, which emits exhaust gases through a catalytic converter, so as to increase an amount of intake air introduced into a combustion chamber by a predetermined quantity greater when the engine operates in an idling mode after it has started to operate than when the engine operates in a normal idling mode, and controlling the opening of the flow control valve based on the generated command value, and an ignition timing control unit for controlling the ignition timing according to a feedback control process to correct the ignition timing so as to be retarded in order to converge the rotational speed of the engine to a predetermined target rotational speed while the amount of intake air is being increased. The amount-of-intake-air control unit successively acquires amount-of-heat data representing the amount of heat energy actually given to the catalytic converter by exhaust gases flowing into said catalytic converter while the amount of intake air is being increased, and corrects the command value for the opening of said flow control valve according to a feedback control process in order to converge the acquired amount-of-heat data to a predetermined target value representing an amount of heat energy to be given to said catalytic converter.

摘要翻译： 用于控制内燃机的装置具有进气量控制单元，用于产生用于通过催化转化器排放废气的发动机的进气通道中的流量控制阀的打开的指令值，因此 当发动机在开始操作之后以怠速模式操作时比在发动机以正常怠速模式操作时将引入燃烧室中的进气量增加预定量更大，并且控制流量的打开 基于所生成的指令值的控制阀，以及点火正时控制单元，用于根据反馈控制处理来控制点火正时，以校正点火正时以便将发动机的转速收敛到预定目标 进气量增加时的转速。 进气量控制单元连续地获取表示当进气量增加时流入所述催化转化器的废气实际给予催化转化器的热能量的热量数据，并且校正 用于根据反馈控制过程打开所述流量控制阀的命令值，以便将所获取的热量数据收敛到表示给予所述催化转化器的热能量的预定目标值。

公开(公告)号：US06581370B2

公开(公告)日：2003-06-24

申请号：US09985764

申请日：2001-11-06

申请人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Takashi Haga ,  Tadashi Sato ,  Yasuyuki Miyahara

发明人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Takashi Haga ,  Tadashi Sato ,  Yasuyuki Miyahara

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  F01N3/0878 ,  F01N11/00 ,  F01N2550/06 ,  F01N2560/028 ,  F02D41/1439 ,  F02D41/1441 ,  F02D41/222 ,  F02D2200/0418 ,  G01N33/007 ,  Y02T10/20 ,  Y02T10/40 ,  Y02T10/47

摘要： A failure determination device that detects the humidity of exhaust gases from an internal combustion engine and a control system for an exhaust passage changeover valve, which can switch the changeover valve with appropriate timing, thereby enabling sufficient purification of exhaust gases. An operating condition of the engine is detected. Based on the detected operating condition of the engine, it is determined whether the engine is in an operating condition in which failure determination of the humidity sensor can be executed. It is determined whether the humidity sensor has failed, based on a result of detection by the humidity sensor, when it has been judged that the failure determination of the humidity sensor can be executed.

摘要翻译： 一种故障判定装置，其检测来自内燃机的废气的湿度和排气通道切换阀的控制系统，其能够以适当的时刻切换切换阀，从而能够充分净化废气。 检测发动机的运行状态。 基于检测到的发动机的运转状况，判定发动机是否处于能够执行湿度传感器的故障判定的运转状态。 当判断出可以执行湿度传感器的故障判定时，基于湿度传感器的检测结果来确定湿度传感器是否发生故障。

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：US06820413B2

公开(公告)日：2004-11-23

申请号：US10235815

申请日：2002-09-06

申请人： Masaki Ueno ,  Yoshihisa Iwaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tadashi Sato

发明人： Masaki Ueno ,  Yoshihisa Iwaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  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 ,  F01N2550/03 ,  F02D41/0245 ,  F02D41/1446 ,  F02D41/1495 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0418 ,  F02P5/1506 ,  Y02T10/22 ,  Y02T10/26 ,  Y02T10/46 ,  Y02T10/47

摘要： A state determining apparatus for an exhaust gas purifier is provided for accurately determining the state of the exhaust gas purifier including an adsorbent for adsorbing hydrocarbons, including a deterioration of the adsorbent, in accordance with an ignition time of an internal combustion engine. The state determining apparatus for an exhaust gas purifier is arranged in an exhaust system of the internal combustion engine for determining the state of the exhaust gas purifier including the adsorbent capable of adsorbing hydrocarbons and moisture in exhaust gas. The state determining apparatus has a humidity sensor arranged at a location downstream of the adsorbent in the exhaust system for detecting the humidity of exhaust gases, and an ECU for determining the state of the adsorbent in accordance with the humidity of exhaust gases detected by the humidity sensor, and the ignition time of the internal combustion engine.

摘要翻译： 提供一种用于排气净化器的状态确定装置，用于根据内燃机的点火时间精确地确定包括用于吸附烃的吸附剂的废气净化器的状态，包括吸附剂的劣化。 用于排气净化器的状态判定装置设置在内燃机的排气系统中，用于确定包括能够吸附废气中的碳氢化合物和水分的吸附剂的废气净化器的状态。 状态判定装置具有布置在排气系统中用于检测废气湿度的吸附剂下游位置处的湿度传感器，以及用于根据湿度检测到的废气湿度来确定吸附剂的状态的ECU 传感器和内燃机的点火时间。

公开(公告)号：US06367245B1

公开(公告)日：2002-04-09

申请号：US09654157

申请日：2000-09-01

申请人： Yuji Yasui ,  Tetsuo Endo ,  Tadashi Sato ,  Shiro Takakura

发明人： Yuji Yasui ,  Tetsuo Endo ,  Tadashi Sato ,  Shiro Takakura

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N2550/03 ,  F01N2900/0422 ,  Y02T10/47

摘要： Exhaust gas sensors or air-fuel ratio sensors for generating outputs depending on the concentration of HC are disposed respectively upstream and downstream of an HC adsorbent in an exhaust passage. When an exhaust gas emitted from an internal combustion engine is supplied to the exhaust passage to allow the HC adsorbent to adsorb HC in the exhaust gas, an amount of HC adsorbed by the HC adsorbent per unit time is determined based on the difference between outputs from the exhaust gas sensors. A deteriorated state of the HC adsorbent is evaluated by comparing the determined adsorbed amount of HC and its integrated value with a threshold set depending on a temperature or the like of the HC adsorbent.

摘要翻译： 用于根据HC浓度产生输出的排气传感器或空燃比传感器分别设置在排气通道中的HC吸附剂的上游和下游。 当从内燃机排出的排气被供给到排气通道以允许HC吸附剂吸附废气中的HC时，每单位时间吸附HC吸附剂的HC量根据来自 废气传感器。 通过将所确定的HC的吸附量与其积分值进行比较，根据HC吸附剂的温度等设定阈值来评价HC吸附剂的劣化状态。