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：US6116213A

公开(公告)日：2000-09-12

申请号：US63732

申请日：1998-04-24

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

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

IPC分类号： F02D31/00 ,  F02D41/02 ,  F02D41/06 ,  F02P5/15 ,  F02D43/00

CPC分类号： F02P5/1506 ,  F02D31/003 ,  F02D41/024 ,  F02D41/067 ,  Y02T10/26 ,  Y02T10/46

摘要： A control system for controlling an internal combustion engine which discharge exhaust gases through an emission purifier includes a controller which increases the quantity of intake air drawn into the internal combustion engine while the internal combustion engine is idling after the internal combustion engine has started to operate, to a level which is greater by a predetermined increase than the quantity of intake air drawn into the internal combustion engine while the internal combustion engine is idling normally. The controller also generates a command value for ignition timing of the internal combustion engine according to a feedback control process to converge the rotational speed of the internal combustion engine toward a predetermined target rotational speed, and controlling the ignition timing of the internal combustion engine based on the generated command value thereby to retard the ignition timing. The controller establishes the target rotational speed by changing the target rotational speed from a preset rotational speed toward a predetermined idling speed after the rotational speed of the internal combustion engine has reached the preset rotational speed which is higher than the idling speed after the quantity of intake air drawn into the internal combustion engine has started being increased.

摘要翻译： 用于控制通过排放净化器排出废气的内燃机的控制系统包括：控制器，其在内燃机开始运转之后，在内燃机空转的同时增加吸入内燃机的进气量， 达到比内燃机正常空转时吸入内燃机的进气量大的预定增量的水平。 控制器还根据反馈控制处理产生内燃机的点火正时的指令值，以使内燃机的转速朝向预定的目标转速收敛，并且控制内燃机的点火正时基于 所产生的指令值从而延迟点火正时。 控制器通过在内燃机的旋转速度达到高于摄入量后的空转速度的预设转速之后，将目标转速从预设转速改变为预定怠速来建立目标转速 吸入内燃机的空气已经开始增加。

公开(公告)号：US06698186B2

公开(公告)日：2004-03-02

申请号：US10168685

申请日：2002-10-28

申请人： Masaki Ueno ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Hiroshi Kitagawa

发明人： Masaki Ueno ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Hiroshi Kitagawa

IPC分类号： F01N300

CPC分类号： F02D41/1441 ,  F01N11/007 ,  F01N2550/02 ,  F02D41/0235 ,  F02D41/1401 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1456 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1431 ,  F02D2041/1432 ,  F02D2041/1433 ,  Y02T10/47

摘要： A target air-fuel ratio KCMD for an exhaust gas upstream of a catalytic converter is sequentially determined to converge the output VO2/OUT of an O2 sensor downstream of the catalytic converter to a target value VO2/TARGET, and the amount of fuel supplied to an internal combustion engine is controlled to converge the output KACT of an air-fuel ratio sensor to the target air-fuel ratio KCMD. While the amount of fuel supplied to the internal combustion engine is being thus controlled, the value of a deterioration linear function &sgr; whose variable components are represented by time-series data of the output VO2/OUT of the O2 sensor is determined. A central value of the square &sgr;2 of the value of the deterioration linear function &sgr; is determined as a deterioration evaluating parameter. A deteriorated state of the catalytic converter is evaluated on the basis of the value of the deterioration evaluating parameter.

摘要翻译： 依次确定催化转化器上游排气的目标空燃比KCMD，将催化转化器下游的O2传感器的输出VO2 / OUT收敛到目标值VO2 / TARGET，并将供给的燃料量 控制内燃机将空燃比传感器的输出KACT收敛到目标空燃比KCMD。 在这样控制供给到内燃机的燃料量的同时，确定由O2传感器的输出VO2 / OUT的时间序列数据表示可变成分的退化线性函数sigma的值。 退化线性函数sigma的值的平方西格玛2的中心值被确定为劣化评估参数。 基于劣化评价参数的值来评价催化转化器的劣化状态。

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。

公开(公告)号：US06449943B1

公开(公告)日：2002-09-17

申请号：US09748189

申请日：2000-12-27

申请人： Masaki Ueno ,  Yoshihisa Iwaki ,  Shusuke Akazaki

发明人： Masaki Ueno ,  Yoshihisa Iwaki ,  Shusuke Akazaki

IPC分类号： F01N300

CPC分类号： F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  Y02T10/47

摘要： The values of parameters of a model of an object exhaust system including a catalytic converter are identified from the data of outputs from an air-fuel ratio sensor and an O2 sensor which are disposed respectively upstream and downstream of the catalytic converter while an internal combustion engine associated with the catalytic converter is in operation. A deterioration evaluating parameter representing the degree of variation of time-series data of the identified parameters is determined from the time-series data of the identified parameters. The deteriorated state of the catalytic converter is evaluated based on the deterioration evaluating parameter.

公开(公告)号：US06647972B2

公开(公告)日：2003-11-18

申请号：US09975002

申请日：2001-10-12

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

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

IPC分类号： F02M2507

CPC分类号： F02M26/46 ,  F01N2560/028 ,  F02D41/0065 ,  F02D41/222 ,  F02M26/15 ,  F02M26/49

摘要： A state determining apparatus for an exhaust gas recirculation system is provided for appropriately determining the state of an exhaust gas recirculation system including an EGR passage. An exhaust gas recirculation system is arranged in an exhaust system of an internal combustion engine including an EGR passage for recirculating a portion of exhaust gases to an intake system in accordance with an operating state of the internal combustion engine. The state determining apparatus comprises a humidity sensor arranged in the EGR passage for detecting a humidity within the EGR passage, and an ECU for determining the state of the exhaust gas recirculation system based on a result detected by the humidity sensor.

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：US07050864B2

公开(公告)日：2006-05-23

申请号：US10312108

申请日：2002-04-19

申请人： Yuji Yasui ,  Yoshihisa Iwaki ,  Jun Takahasi

发明人： Yuji Yasui ,  Yoshihisa Iwaki ,  Jun Takahasi

IPC分类号： G05B13/02

CPC分类号： G05B13/042 ,  F02D35/0007 ,  F02D41/1403 ,  F02D41/1454 ,  F02D41/40 ,  F02D2041/1423 ,  F02D2041/143 ,  G05B13/047 ,  G05B13/048

摘要： A control system for a plant is provided. This control system can control the plant more stably, when the model parameters of the controlled object model which are obtained by modeling the plant, which is a controlled object, are identified and the sliding mode control is performed using the identified model parameters. The model parameter identifier (22) calculates a model parameter vector (θ) by adding an updating vector (d θ) to a reference vector (θ base) of the model parameter. The updating vector (d θ) is corrected by multiplying a past value of at least one element of the updating vector by a predetermined value which is greater than “0” and less than “1”. The model parameter vector (θ) is calculated by adding the corrected updating vector (d θ) to the reference vector (θ base).

摘要翻译： 提供了一种植物控制系统。 当通过对作为受控对象的设备进行建模获得的受控对象模型的模型参数被识别并且使用所识别的模型参数来执行滑动模式控制时，该控制系统可以更稳定地控制设备。 模型参数标识符（22）通过将更新向量（dθ）添加到模型参数的参考向量（θbase）来计算模型参数向量（θ）。 通过将更新向量的至少一个元素的过去值乘以大于“0”且小于“1”的预定值来校正更新向量（dθ）。 通过将校正的更新向量（dθ）加到参考矢量（θbase）来计算模型参数矢量（theta）。

公开(公告)号：US06859717B2

公开(公告)日：2005-02-22

申请号：US10395995

申请日：2003-03-25

申请人： Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

发明人： Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

IPC分类号： F02D9/02 ,  F02D11/10 ,  F02D41/14 ,  F02D45/00 ,  G05B13/00 ,  G05B13/02 ,  G05B13/04 ,  G06F19/00

CPC分类号： F02D11/105 ,  F02D41/1402 ,  F02D41/1403 ,  F02D2041/1423 ,  F02D2041/1433

摘要： A control system for a plant is disclosed. The control system includes a response specifying type controller for controlling the plant with a response specifying type control. The response specifying type controller calculates a nonlinear input according to a sign of a value of a switching function and an output of the plant. The switching function is defined as a linear function of a deviation between the output of the plant and a control target value. A control input from the response specifying type controller to the plant includes the nonlinear input.

摘要翻译： 公开了一种植物的控制系统。 控制系统包括响应指定型控制器，用于控制具有响应指定类型控制的设备。 响应指定型控制器根据切换功能的值和设备的输出的符号来计算非线性输入。 切换功能被定义为工厂输出与控制目标值之间的偏差的线性函数。 从响应指定型控制器到工厂的控制输入包括非线性输入。