公开(公告)号：US07430854B2

公开(公告)日：2008-10-07

申请号：US10653146

申请日：2003-09-03

Applicant: Yuji Yasui ,  Akihiro Shinjo ,  Tatsuhito Esaki ,  Naoto Fujimura

Inventor： Yuji Yasui ,  Akihiro Shinjo ,  Tatsuhito Esaki ,  Naoto Fujimura

IPC: F01N3/00

CPC classification number: F02D41/126 ,  F01N13/0097 ,  F02D41/1402 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1475 ,  F02D41/2441 ,  F02D2041/1423 ,  F02D2041/1433 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414

Abstract: An air fuel ratio controller for an internal combustion engine includes an exhaust gas sensor, an identifier and a control unit. The exhaust gas sensor detects oxygen concentration of exhaust gas. The identifier calculates model parameters for a model of a controlled object based on the output of the exhaust gas sensor. The controlled object includes an exhaust system of the engine. The control unit is configured to use the model parameters to control the air-fuel ratio so that the output of the exhaust gas sensor converges to a desired value, and to stop the identifier from calculating the model parameters during and immediately after the engine operation with a lean air-fuel ratio. The calculation of the model parameters may be also stopped during and immediately after fuel-cut operation that stops fuel supply to the engine. Such a stop of the calculation of the model parameters reduces the emission of undesired substances contained in exhaust gas when the engine shifts from lean operation to stoichiometric/rich operation.

Abstract translation: 用于内燃机的空燃比控制器包括排气传感器，标识符和控制单元。 排气传感器检测废气的氧浓度。 识别器基于排气传感器的输出来计算受控对象的模型的模型参数。 受控对象包括发动机的排气系统。 控制单元被配置为使用模型参数来控制空燃比，使得废气传感器的输出收敛到期望值，并且在发动机运行期间和之后立即停止标识符计算模型参数， 贫空燃比。 模型参数的计算也可以在停止向发动机供油的燃料切断操作期间和之后立即停止。 当发动机从稀薄运转转变为化学计量/浓缩运转时，模拟参数的计算的这种停止减少废气中所含的不期望物质的排放。

公开(公告)号：US20080174654A1

公开(公告)日：2008-07-24

申请号：US12011035

申请日：2008-01-23

Applicant: Yasuhiko Mochida ,  Yuji Yasui ,  Kazunori Murakami ,  Yoshimitsu Ohtaka

Inventor： Yasuhiko Mochida ,  Yuji Yasui ,  Kazunori Murakami ,  Yoshimitsu Ohtaka

IPC: B41J2/435

CPC classification number: B41J2/4753 ,  B41J2/473

Abstract: The laser beam output from each of the semiconductor lasers is applied to the same print dot, such as each of the print dots on a thermosensitive recording medium, in such a manner that the laser beams are superimposed on one another sequentially at the same time that each of the semiconductor lasers is moved in the main scanning direction.

Abstract translation: 从每个半导体激光器输出的激光束以这样的方式施加到相同的打印点，例如热敏记录介质上的每个打印点，使得激光束在相同的时间上彼此重叠， 每个半导体激光器在主扫描方向上移动。

公开(公告)号：US20080123509A1

公开(公告)日：2008-05-29

申请号：US11986856

申请日：2007-11-27

Applicant: Kazunori Murakami ,  Yoshimitsu Ohtaka ,  Toshiyuki Tamura ,  Takayuki Hiyoshi ,  Yasuhiko Mochida ,  Yuji Yasui

Inventor： Kazunori Murakami ,  Yoshimitsu Ohtaka ,  Toshiyuki Tamura ,  Takayuki Hiyoshi ,  Yasuhiko Mochida ,  Yuji Yasui

IPC: G11B7/00

CPC classification number: B41J2/4753 ,  B41J2/473

Abstract: A single mode laser beam output from a single mode semiconductor laser and a multimode laser beam output from a multimode semiconductor laser are combined with each other by a polarization beam splitter, the combined laser beam is used by a deflection scanning mechanism to perform main scanning, and an image of the combined laser beam is formed on a surface of a thermal recording medium by a scanning lens.

Abstract translation: 从单模半导体激光器输出的单模激光束和从多模半导体激光器输出的多模激光束通过偏振分束器彼此组合，组合的激光束被偏转扫描机构用于执行主扫描， 并且通过扫描透镜在热敏记录介质的表面上形成组合的激光束的图像。

公开(公告)号：US07379809B2

公开(公告)日：2008-05-27

申请号：US10593443

申请日：2005-03-29

Applicant: Yuji Yasui ,  Hiroshi Tagami ,  Mitsunobu Saito ,  Kosuke Higashitani ,  Masahiro Sato

Inventor： Yuji Yasui ,  Hiroshi Tagami ,  Mitsunobu Saito ,  Kosuke Higashitani ,  Masahiro Sato

IPC: B60T7/12 ,  F02D13/00

CPC classification number: F02D31/003 ,  F02D21/08 ,  F02D23/00 ,  F02D37/02 ,  F02D41/1403 ,  F02D2041/001 ,  F02M26/05 ,  F02P5/1508 ,  G05B11/32 ,  Y02T10/144 ,  Y02T10/46

Abstract: A control system which is capable of enhancing both the stability and the accuracy of control when the output of a controlled object is feedback-controlled by a plurality of control inputs. An ECU 2 of a control system 1 controls engine speed NE during idling by an ignition control input Usl_ig and an intake control input Usl_ar. The ECU 2 calculates a target engine speed NE_cmd according to an engine coolant temperature TW and the like (step 3), and determines the ignition control input Usl_ig and the intake control input Usl_ar with a plurality of predetermined target value filter-type two-degree-of-freedom sliding mode control algorithms [equations (1) to (12)] sharing one switching function σne therebetween, such that the engine speed NE converges to the target engine speed NE_cmd (steps 4 to 7 and 9).

Abstract translation: 当控制对象的输出由多个控制输入进行反馈控制时，能够提高控制的稳定性和精度的控制系统。 控制系统1的ECU2通过点火控制输入Usl_ig和进气控制输入Us1_ar来控制空转期间的发动机转速NE。 ECU2根据发动机冷却水温度TW等来计算目标发动机转速NE_cmd（步骤3），并用多个预定目标值过滤器型二度确定点火控制输入Usl_ig和进气控制输入Us1_ar 自由滑动模式控制算法[等式（1）至（12）]在其间共享一个切换功能sigmane，使得发动机转速NE收敛到目标发动机转速NE_cmd（步骤4至7和9）。

公开(公告)号：US20080091332A1

公开(公告)日：2008-04-17

申请号：US11907384

申请日：2007-10-11

Applicant: Yuji Yasui ,  Ikue Kawasumi ,  Kosuke Higashitani

Inventor： Yuji Yasui ,  Ikue Kawasumi ,  Kosuke Higashitani

IPC: F02D28/00

CPC classification number: F02D41/0002 ,  B60K28/16 ,  F02D13/0226 ,  F02D13/0261 ,  F02D41/1401 ,  F02D41/1497 ,  F02D41/40 ,  F02D2041/001 ,  F02D2041/141 ,  F02D2041/1422 ,  F02D2041/1433 ,  F02D2250/18 ,  Y02T10/42 ,  Y02T10/44

Abstract: A control apparatus which is capable of compensating for a control error properly and quickly even under a condition where the control error is temporarily increased e.g. by degradation of reliability of the detection results of reference parameters other than controlled variables, thereby making it possible to ensure a high accuracy of control. An air-fuel ratio controller of the control apparatus calculates an air-fuel ratio error estimated value and an error weight, calculates an modified error, calculates a basic lift correction value such that the modified error becomes equal to 0, calculates a lift correction value, calculates corrected valve lift by adding the lift correction value to valve lift, calculates a first estimated intake air amount for feedforward control of an air-fuel ratio according to the corrected valve lift, calculates an air-fuel ratio correction coefficient for feedback control of the air-fuel ratio, and calculates a fuel injection amount according to these.

Abstract translation: 即使在暂时增加控制误差的情况下也能适当，快速地补偿控制误差的控制装置， 通过降低控制变量以外的参考参数的检测结果的可靠性，从而可以确保高精度的控制。 控制装置的空燃比控制器计算空燃比误差估计值和误差重量，计算修正误差，计算修正误差等于0的基本升程修正值，计算升程修正值 通过将升程校正值加到气门升程来计算校正的气门升程，根据校正的气门升程计算用于空燃比的前馈控制的第一估计进气量，计算用于反馈控制的空燃比校正系数 空燃比，并根据这些计算燃料喷射量。

公开(公告)号：US07337772B2

公开(公告)日：2008-03-04

申请号：US10770376

申请日：2004-02-03

Applicant: Yuji Yasui ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Yoshihisa Iwaki

IPC: F02D41/00 ,  B60T7/12

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

Abstract: The temperature of an exhaust gas flowing through an exhaust passage 3 is estimated or detected, and the temperature of an active element of an exhaust gas sensor 8. (O2 sensor) is controlled at a predetermined target temperature by a heater using the estimated or detected temperature of the exhaust gas. For estimating the temperature of the exhaust gas in the vicinity of the exhaust gas sensor 8, the exhaust passage 3 extending up to the exhaust gas sensor 8 is divided into a plurality of partial exhaust passageways 3a through 3d, the temperatures of the exhaust gas in the partial exhaust passageways 3a through 3d are estimated successively from an exhaust port 2 of an engine 1. The temperature of the exhaust gas is estimated according to an algorithm which takes into account a heat transfer between the exhaust gas and passage-defining members 6a, 6b, 7 which define the exhaust passage 3 and a heat radiation from the passage-defining members into the atmosphere. A control input that is applied to the heater includes at least a component depending on the temperature of the active element of the exhaust gas sensor 8 and a component depending on the temperature of the exhaust gas. Even if the temperature of the exhaust gas changes, the temperature of the active element of the exhaust gas sensor 8 can be controlled stably at the desired temperature.

Abstract translation: 估计或检测流过排气通道3的废气的温度，以及排气传感器8的有源元件的温度。 （O 2传感器）通过使用估计或检测到的废气温度的加热器控制在预定目标温度。 为了估计排气传感器8附近的废气的温度，向废气传感器8延伸的排气通路3分为多个部分排气通路3a〜3d，排气温度 从发动机1的排气口2连续地估计局部排气通道3 a至3 d中的气体。 排气的温度根据考虑到排气和限定排气通道3的通道限定部件6a，6b，7之间的传热以及来自通道限定部件的热辐射的算法来估计 会员进入大气。 施加到加热器的控制输入至少包括取决于废气传感器8的有源元件的温度的元件和取决于废气温度的元件。 即使排气的温度变化，也能够将废气传感器8的有源元件的温度稳定地控制在期望的温度。

公开(公告)号：US20080051979A1

公开(公告)日：2008-02-28

申请号：US10561039

申请日：2004-05-28

Applicant: Yuji Yasui ,  Akiyuki Yonekawa

Inventor： Yuji Yasui ,  Akiyuki Yonekawa

IPC: F02D28/00

CPC classification number: F02D13/0207 ,  F01L1/08 ,  F01L1/18 ,  F01L1/185 ,  F01L13/0047 ,  F01L2800/00 ,  F02B23/104 ,  F02B2075/125 ,  F02D41/0002 ,  F02D41/008 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/18 ,  F02D2041/001 ,  F02D2041/1423 ,  F02D2041/1433 ,  F02D2200/0402 ,  G05B13/047 ,  Y02T10/18 ,  Y02T10/42

Abstract: An intake air amount control system for an internal combustion engine, which is capable of ensuring high robustness and improving controllability in intake air amount control, to thereby improve drivability and reduce exhaust emissions. A control system 1 of an internal combustion engine 3, which variably controls the amount of intake air drawn into cylinders #1 to #4 as desired via a variable intake valve actuation assembly 40 includes an ECU 2. The ECU 2 calculates a cylinder intake air amount Gcyl and a target intake air amount Gcyl_cmd (step 16), identifies, based on a controlled object model [equation (2)], a vector θs of all model parameters of the controlled object model with an identification algorithm [equations (8) to (13)], calculates a target auxiliary intake cam phase θmsi_cmd based on the vector θs with a sliding mode control algorithm [equations (15) to (21)] (step 80), and controls the variable intake valve actuation assembly 40 according to the target auxiliary intake cam phase θmsi_cmd.

Abstract translation: 一种用于内燃机的进气量控制系统，其能够确保高鲁棒性并提高进气量控制的可控性，从而提高驾驶性能并减少排气。 内燃机3的控制系统1包括ECU2，ECU1控制通过可变进气门致动组件40根据需要可变地控制吸入气缸＃1至＃4的进气量。 ECU2计算出汽缸进气量Gcyl和目标进气量Gcyl_cmd（步骤16），基于受控对象模型[等式（2）]识别受控对象模型的所有模型参数的矢量， 识别算法[方程（8）〜（13）]，利用滑动模式控制算法[方程式（15）〜（21）]（步骤80），基于矢量计算目标辅助进气凸轮相位tt（s） 根据目标辅助进气凸轮相位可变进气门致动组件40。

公开(公告)号：US07316212B2

公开(公告)日：2008-01-08

申请号：US11197404

申请日：2005-08-05

Applicant: Hiroshi Tagami ,  Yuji Yasui ,  Mitsunobu Saito ,  Kosuke Higashitani

Inventor： Hiroshi Tagami ,  Yuji Yasui ,  Mitsunobu Saito ,  Kosuke Higashitani

IPC: F01L1/34

CPC classification number: F02D13/0219 ,  F01L1/022 ,  F01L1/024 ,  F01L1/352 ,  F01L2800/00 ,  F01L2820/041 ,  F01L2820/042 ,  F02D13/00 ,  F02D41/1403 ,  F02D2041/001 ,  F02D2041/1433 ,  Y02T10/18

Abstract: A cam phase control system for an internal combustion engine, which is capable of suppressing deviation of the cam phase which is caused by a sudden change in the engine speed due to the structure of a variable cam phase mechanism, thereby securing excellent controllability and high control accuracy. The coma phase control system of the engine comprise an ECU and an electromagnetic variable cam phase mechanism. The ECU calculates an SLD control input for causing the cam phase to converge to a target cam phase by equations (1) to (6), calculates a gain-adjusted value by modulating the SLD control input by equations (20) to (25), calculates a correction value according to the engine speed NE, and calculates a control input for controlling the variable cam phase mechanism by correcting the gain-adjusted value by the correction value.

Abstract translation: 一种用于内燃机的凸轮相位控制系统，其能够抑制由于可变凸轮相位机构的结构而由发动机转速的突然变化引起的凸轮相位的偏差，从而确保优异的可控性和高控制 准确性。 发动机的昏迷相位控制系统包括ECU和电磁可变凸轮相位机构。 ECU计算用于使凸轮相位通过等式（1）至（6）收敛到目标凸轮相位的SLD控制输入，通过由等式（20）至（25）调制SLD控制输入来计算增益调整值， 根据发动机转速NE计算校正值，并通过校正增益调整值来计算用于控制可变凸轮相位机构的控制输入。

公开(公告)号：US07305299B2

公开(公告)日：2007-12-04

申请号：US10511540

申请日：2003-03-28

Applicant: Yuji Yasui ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Yoshihisa Iwaki

IPC: F01N9/00 ,  G06F17/00

CPC classification number: F02D41/1454 ,  G01K7/42

Abstract: An apparatus for controlling temperature of an exhaust gas sensor can include a temperature estimating device for sequentially estimating the temperature of an active element based on a predetermined element temperature model, which is representative of a temperature change of the active element due to heat transfer between the active element and an exhaust gas held in contact with the active element. A heater control device can control a heater to equalize the temperature of the active element with a predetermined target temperature using an estimated value of the temperature of the active element from the temperature estimating device.

Abstract translation: 用于控制排气传感器的温度的装置可以包括：温度估计装置，用于基于预定元件温度模型顺序地估计有源元件的温度，所述预定元件温度模型代表由于有源元件之间的热传递而导致的有源元件的温度变化 活性元件和与活性元件保持接触的废气。 加热器控制装置可以使用来自温度估计装置的有源元件的温度的估计值来控制加热器以使具有预定目标温度的有源元件的温度相等。

公开(公告)号：US07305297B2

公开(公告)日：2007-12-04

申请号：US11642550

申请日：2006-12-21

Applicant: Yuji Yasui ,  Kanako Shimojo ,  Eiji Hashimoto ,  Yshihisa Iwaki

Inventor： Yuji Yasui ,  Kanako Shimojo ,  Eiji Hashimoto ,  Yshihisa Iwaki

IPC: G06F17/00 ,  G06F19/00 ,  F02D11/10

CPC classification number: F02D41/1402 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1423 ,  F02D2041/1431

Abstract: The present invention provides a controller for controlling a modeled plant robustly against disturbance. The controller comprises an estimator and a control unit. The estimator estimates disturbance applied to the plant. The control unit determines an input to the plant so that an output of the plant converges to a desired value. The input to the plant is determined to include a value obtained by multiplying the estimated disturbance by a predetermined gain. Since estimated disturbance is reflected in the input to the plant, control having robustness against disturbance is implemented. The controller may comprise a state predictor. The state predictor predicts the output of the plant based on the estimated disturbance and dead time included in the plant. The control unit determined the input to the plant so that the predicted output converges to a desired value. Since the state predictor allows for the dead time, the accuracy of the control is improved. The estimated disturbance is reflected in the predicted output, an error between the predicted output and an actual output of the plant is removed.

Abstract translation: 本发明提供了一种控制器，用于强制地对干扰进行控制。 控制器包括估计器和控制单元。 估计器估计对工厂的干扰。 控制单元确定对设备的输入，使得设备的输出收敛到期望值。 确定到工厂的输入包括通过将估计的扰动乘以预定增益而获得的值。 由于估计的干扰反映在工厂的输入中，因此实现了具有抗干扰性的鲁棒性的控制。 控制器可以包括状态预测器。 状态预测器根据工厂包括的估计干扰和死区时间来预测工厂的产量。 控制单元确定对工厂的输入，使得预测输出收敛到期望值。 由于状态预测器允许死区时间，因此提高了控制的精度。 估计的干扰反映在预测的输出中，预测输出与工厂的实际输出之间的误差被消除。