公开(公告)号：US06935155B2

公开(公告)日：2005-08-30

申请号：US10437458

申请日：2003-05-14

Applicant: Yuji Yasui ,  Hiroshi Kitagawa

Inventor： Yuji Yasui ,  Hiroshi Kitagawa

IPC: G01N27/409 ,  F01N3/28 ,  F02D41/14 ,  F02D41/22 ,  F02D45/00 ,  G01N27/26 ,  G01N27/00 ,  F02D41/00

CPC classification number: F02D41/222 ,  F02D41/1456 ,  F02D2041/288 ,  Y02T10/40

Abstract: An apparatus for detecting a failure of an exhaust gas sensor disposed in an exhaust manifold is provided. The apparatus comprises a control unit. The control unit compares detection values of the exhaust gas sensor detected under different element temperatures of the exhaust gas sensor. The control unit detects a failure of the exhaust gas sensor based on the comparison result. In one embodiment, the different states include a state in which the element temperature is maintained at higher level and a state in which the element temperature is maintained at lower level. The element temperature can be controlled by a response assignment control scheme. In one embodiment, the detection values are subjected to a filtering process and/or a statistical process using a successive least squares method. The control unit compares the statistically processed detection values to detect a failure of the exhaust gas sensor.

Abstract translation: 提供一种用于检测设置在排气歧管中的废气传感器的故障的装置。 该装置包括控制单元。 控制单元比较在废气传感器的不同元件温度下检测到的废气传感器的检测值。 控制单元根据比较结果来检测排气传感器的故障。 在一个实施例中，不同的状态包括元件温度保持在较高水平的状态和元件温度保持在较低水平的状态。 元件温度可以通过响应分配控制方案来控制。 在一个实施例中，使用连续最小二乘法对检测值进行滤波处理和/或统计处理。 控制单元将统计处理的检测值进行比较以检测废气传感器的故障。

公开(公告)号：US06925372B2

公开(公告)日：2005-08-02

申请号：US10201988

申请日：2002-07-25

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F02D45/00 ,  F01N3/22 ,  F01N13/02 ,  F02D41/02 ,  F02D41/14 ,  G05B11/36 ,  G05B13/00 ,  G05B13/02 ,  B60T7/12

CPC classification number: F02D41/1401 ,  F01N13/0097 ,  F02D41/0235 ,  F02D41/1403 ,  F02D2041/141 ,  F02D2041/1415 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1433 ,  G05B13/0255 ,  G05B13/026

Abstract: A control apparatus, a control method, and an engine control unit are provided for controlling an output of a controlled object which has a relatively large response delay and/or dead time to rapidly and accurately converge to a target value. When the output of the controlled object is chosen to be that of an air/fuel ratio sensor in an internal combustion engine, the output of the air/fuel ratio sensor can be controlled to rapidly and accurately converge to a target value even in an extremely light load operation mode.

Abstract translation: 提供控制装置，控制方法和引擎控制单元，用于控制具有相对较大的响应延迟和/或死区时间的受控对象的输出，以快速且准确地收敛到目标值。 当控制对象的输出被选择为内燃机中的空气/燃料比传感器的输出时，空气/燃料比传感器的输出可以被控制以快速且准确地收敛到目标值，即使在极端 轻载操作模式。

公开(公告)号：US06922626B2

公开(公告)日：2005-07-26

申请号：US10778242

申请日：2004-02-17

Applicant: Tetsuya Ishiguro ,  Shusuke Akazaki ,  Yuji Yasui ,  Takahide Mizuno

Inventor： Tetsuya Ishiguro ,  Shusuke Akazaki ,  Yuji Yasui ,  Takahide Mizuno

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

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US06920388B2

公开(公告)日：2005-07-19

申请号：US10481244

申请日：2002-06-19

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F02D45/00 ,  F01N9/00 ,  F02D41/14 ,  G05B13/04

CPC classification number: F01N9/005 ,  F01N2430/06 ,  F02D41/1402 ,  F02D41/1455 ,  F02D41/1456 ,  F02D41/1458 ,  F02D41/1475 ,  F02D41/1477 ,  F02D41/1481 ,  F02D41/187 ,  F02D2041/1409 ,  F02D2041/141 ,  F02D2041/1416 ,  F02D2041/142 ,  F02D2041/1433 ,  F02D2200/0404 ,  G05B13/042 ,  G05B13/047 ,  Y02T10/47

Abstract: An apparatus for controlling the air-fuel ratio of an internal combustion engine to compensate for the effect of the dead times of an exhaust system including a catalytic converter, etc. and to increase the purifying capability of the catalytic converter. An exhaust-side control unit 7a sequentially variably sets a dead time of an exhaust system E depending on the flow rate of an exhaust gas supplied to a catalytic converter 3 and a dead time of an air-fuel ratio manipulating system comprising an internal combustion engine 1 and an engine-side control unit 7b, and sequentially estimates an output of an O2 sensor 6 after a total set dead time which is the sum of the above set dead times. The exhaust-side control unit 7a sequentially generates a target air-fuel ratio KCMD to converge the output of the O2 sensor 6 to a target value using the estimated value, and manipulates the air-fuel ratio of the internal combustion engine 1. Using the set dead time of the exhaust system E as a dead time of an exhaust system model which serves as a basis for estimating the output of the O2 sensor 6, a parameter of the exhaust system model is sequentially identified.

Abstract translation: 一种用于控制内燃机的空燃比以补偿包括催化转化器等的排气系统的死区时间的影响并提高催化转化器的净化能力的装置。 排气侧控制单元7a根据供给到催化转化器3的排气的流量和包含内燃的空燃比操作系统的停滞时间依次变化地设定排气系统E的死区时间 发动机1和发动机侧控制单元7b，并且在总设定死区时间之后依次估计O 2传感器6的输出，该总设定死区时间是上述设定的死区时间的总和。 排气侧控制单元7a使用该估计值依次生成目标空燃比KCMD，使O 2 2传感器6的输出成为目标值，并将空燃比 的内燃机1。 使用排气系统E的设定死区时间作为用作估计O 2传感器6的输出的基础的排气系统模型的死区时间，排气系统模型的参数为 依次确定。

公开(公告)号：US20050110449A1

公开(公告)日：2005-05-26

申请号：US10992831

申请日：2004-11-22

Applicant: Yuji Yasui ,  Kanako Shimojo

Inventor： Yuji Yasui ,  Kanako Shimojo

IPC: F16H61/34 ,  F16H59/68 ,  F16H61/02 ,  F16H61/28 ,  F16H61/682 ,  F16H63/30 ,  G05B19/33 ,  G05B11/18

CPC classification number: F16H61/28 ,  F16H2059/6807 ,  F16H2063/3086

Abstract: An actuator control system restrains hindrance to an object under control by an interfering substance that exists on its traveling path when the object is moved toward a target position on one axis while the object has been positioned at a target position on the other axis. A selection controller sets a switching function setting parameter (VPOLE_sl) so that a disturbance suppressing capability level is lower at a set value (VPOLE_sl_l) at time (t31˜) when a shift arm is moved in a shifting direction by a shift controller than at a set value (VPOLE_sl_h) at time (˜t31) when the shift arm is moved in a selecting direction to be set at a certain gearshift position (|VPOLE_sl_h|

Abstract translation: 当物体已经位于另一个轴上的目标位置上时，当物体朝向一个轴上的目标位置移动时，致动器控制系统阻止受到其行进路径上存在的干扰物质的控制的物体的阻碍。 选择控制器设置切换功能设定参数（VPOLE_s1），使得当移位臂在一个移动臂中移动时，在时间（t> 31〜）时的设定值（VPOLE_s1_1）的干扰抑制能力水平较低 当变速臂在选择方向上移动以设定在某个换档位置（| VPOLE_s1_h |）时，通过换档控制器而不是在时间（〜t 31）处的设定值（VPOLE_s1_h） <| VPOLE_sl_ |）。

公开(公告)号：US20050033456A1

公开(公告)日：2005-02-10

申请号：US10937319

申请日：2004-09-10

Applicant: Yuji Yasui ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Yoshihisa Iwaki

IPC: F02D45/00 ,  F02D41/14 ,  G05B13/02 ,  G05B13/04 ,  G05B11/01

CPC classification number: F02D41/1402 ,  F02D2041/1423 ,  F02D2041/1433 ,  G05B13/042

Abstract: A control system for a plant, having an identifier and a controller. The identifier identifies model parameters of a controlled object model which is obtained by modeling the plant. The controller calculates a control input to the plant so that an output from the plant coincides with a control target value, using the identified model parameters. The controller calculates a self-tuning control input, using the model parameters identified by the identifier. The controller further calculates a damping control input according to the rate of change in the output from the plant or the rate of change in a deviation between the output from the plant and the control target value. The controller calculates the control input to the plant as a sum of the self-tuning control input and the damping control input.

Abstract translation: 一种用于工厂的控制系统，具有标识符和控制器。 标识符识别通过对工厂建模获得的受控对象模型的模型参数。 控制器计算到工厂的控制输入，使得使用所识别的模型参数，来自设备的输出与控制目标值一致。 控制器使用由标识符标识的模型参数来计算自整定控制输入。 控制器还根据工厂输出的变化率或者工厂输出与控制目标值之间的偏差变化率来计算阻尼控制输入。 控制器将工厂的控制输入计算为自整定控制输入和阻尼控制输入的总和。

公开(公告)号：US06823839B2

公开(公告)日：2004-11-30

申请号：US10401892

申请日：2003-03-31

Applicant: Yuji Yasui ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Yoshihisa Iwaki

IPC: F00M300

CPC classification number: G05D23/2401 ,  G05D23/1919 ,  G05D23/27

Abstract: An apparatus controls the temperature of an exhaust gas sensor disposed in an exhaust passage of an internal combustion engine. An exhaust gas temperature estimating unit sequentially estimates the temperature of exhaust gas flowing through the exhaust passage, using at least a parameter representative of an operating state of the internal combustion engine. A heater control unit controls a heater for heating an active element of the exhaust gas sensor to a predetermined target temperature, using an estimated value of the exhaust gas from the exhaust gas temperature estimating unit.

Abstract translation: 一种装置控制设置在内燃机的排气通道中的废气传感器的温度。 排气温度估计单元至少使用表示内燃机的运转状态的参数，依次估计流经排气通路的废气的温度。 加热器控制单元使用来自排气温度估计单元的废气的估计值来控制用于将排气传感器的有源元件加热到预定目标温度的加热器。

公开(公告)号：US06640540B2

公开(公告)日：2003-11-04

申请号：US09978020

申请日：2001-10-17

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

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

IPC: F01N300

CPC classification number: 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

Abstract: 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：US06449944B1

公开(公告)日：2002-09-17

申请号：US09743906

申请日：2001-01-17

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

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

IPC: F01N300

CPC classification number: F02D41/1403 ,  F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  F02D41/0235 ,  F02D41/1402 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/22 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1431 ,  F02D2041/1432 ,  F02D2041/1433 ,  Y02T10/47

Abstract: A first exhaust gas sensor 5 (air-fuel ratio sensor) and a second exhaust gas sensor 6 (O2 sensor) are disposed respectively upstream and downstream of a catalytic converter. An exhaust system E which ranges from the exhaust gas sensor 5 to the exhaust gas sensor 6 and includes the catalytic converter 3 is regarded as an object exhaust system E, and a behavior of the object exhaust system E is modeled. When an internal combustion engine 1 is in operation, parameters to be set of the model of the object exhaust system E are sequentially identified based on the data of outputs of the exhaust gas sensors 5, 6. A deteriorated state of the catalytic converter 3 is determined based on the data of the identified values. Concurrent with the determination of the deteriorated state, a target air-fuel ratio for the internal combustion engine 1 is sequentially determined in order to converge the output of the exhaust gas sensor 5 to a given target value, and the air-fuel ratio of the internal combustion engine 1 is controlled to converge the output (the detected value of the air-fuel ratio) of the first exhaust gas sensor 5 to the target air-fuel ratio, for thereby allowing the catalytic converter 3 to achieve an optimum purifying capability. In this manner, the deteriorated state of the catalytic converter 3 can be determined in various operation states of the internal combustion engine 1 while keeping the purifying capability of the catalytic converter 3.

Abstract translation: 第一排气传感器5（空燃比传感器）和第二排气传感器6（O2传感器）分别设置在催化转化器的上游和下游。 从排气传感器5到排气传感器6并且包括催化转化器3的排气系统E被认为是对象排气系统E，并且对对象排气系统E的行为进行建模。 当内燃机1运转时，根据排气传感器5,6的输出数据，依次识别对象排气系统E的模型的参数，催化转化器3的劣化状态为 基于所识别的值的数据确定。 与劣化状态的判定同时，为了将排气传感器5的输出收敛到给定的目标值，依次确定内燃机1的目标空燃比，空燃比 控制内燃机1使第一废气传感器5的输出（空燃比的检测值）与目标空燃比收敛，从而使催化转化器3达到最佳的净化能力。 以这种方式，可以在保持催化转化器3的净化能力的同时，在内燃机1的各种运行状态下确定催化转化器3的劣化状态。

公开(公告)号：US06401451B1

公开(公告)日：2002-06-11

申请号：US09551210

申请日：2000-04-17

Applicant: Yuji Yasui ,  Yushihisa Iwaki ,  Tadashi Satoh ,  Masahiro Satoh

Inventor： Yuji Yasui ,  Yushihisa Iwaki ,  Tadashi Satoh ,  Masahiro Satoh

IPC: F01N300

CPC classification number: F01N3/101 ,  B01D53/9486 ,  F01N3/0835 ,  F01N3/0878 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2550/03 ,  Y02T10/22 ,  Y02T10/47

Abstract: A system for discriminating degradation of an exhaust purification system of an internal combustion engine having an adsorbent installed at a bypass exhaust gas passage branched from an exhaust pipe of the engine, which is opened by a switch-over valve at starting of the engine to introduce the exhaust gas such that the adsorbent adsorbs unburned HC in exhaust gas generated by the engine and is closed such that the adsorbent desorbs the adsorbed HC and the desorbed HC is thereafter recirculated at a position upstream of a catalyst. Based on the fact, due to the adsorption effect, the HC concentration at a downstream point is lower than that at an upstream point, in the system, the concentration of the HC introduced in the bypass exhaust gas passage in the adsorption mode is detected and compared with a threshold value and the degradation of the adsorbent is discriminated, thereby enabling to improve the discrimination accurately.

Abstract translation: 一种用于区分内燃机的排气净化系统的劣化的系统，该内燃机具有安装在从发动机的排气管分支的旁路废气通道的吸附剂，所述旁路废气通道在发动机起动时由切换阀打开以引入 排气，使得吸附剂吸收由发动机产生的废气中的未燃HC，并且关闭，使得吸附剂解吸所吸附的HC，然后解吸的HC在催化剂上游的位置处再循环。 基于这一事实，由于吸附效应，下游点的HC浓度低于上游点的HC浓度，在该系统中，检测在吸附模式中在旁路废气通道中引入的HC的浓度， 与阈值进行比较，并且鉴别出吸附剂的劣化，从而能够准确地提高鉴别度。