公开(公告)号：US20050075781A1

公开(公告)日：2005-04-07

申请号：US10958553

申请日：2004-10-06

Applicant: Takahide Mizuno ,  Yuji Yasui ,  Hidetaka Maki

Inventor： Takahide Mizuno ,  Yuji Yasui ,  Hidetaka Maki

IPC: F02D45/00 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  G05D1/00 ,  F02M41/14

CPC classification number: F02D41/008 ,  F02D41/1401 ,  F02D41/1456 ,  F02D41/2454 ,  F02D2041/1431 ,  F02D2041/1432

Abstract: An air-fuel ratio control system for an internal combustion engine, which is capable of quickly and properly eliminating variation in air-fuel ratio between a plurality of cylinders. The air-fuel ratio control system 1 controls the amount of fuel to be supplied to first to fourth cylinders #1 to #4, on a cylinder-by-cylinder basis, thereby controlling the air-fuel ratio of a mixture supplied to each of the cylinders. A LAF sensor 14 delivers to an ECU 2 an output KACT indicative of the air-fuel ratio of exhaust gases emitted from the cylinders and merged. A cycle filter 23a and a rotation filter 23b filters the output KACT from the LAF sensor 14 such that components in respective bands of a first frequency fr1 and a second frequency fr2 are allowed to pass therethrough. A final fuel injection amount TOUTi is determined, on a cylinder-by-cylinder basis, according to a first filtered value KACT_Fc or a second filtered value KACT_Fr such that the amplitude of the filtered value KACT_Fc or KACT_Fr converges to a predetermined value.

Abstract translation: 一种用于内燃机的空燃比控制系统，其能够快速且适当地消除多个气缸之间的空燃比的变化。 空燃比控制系统1在逐缸的基础上控制供给到第一〜第四气缸＃1〜＃4的燃料量，由此控制供给至各缸的混合气体的空燃比 气瓶。 LAF传感器14向ECU2输送表示从气缸排出的废气的空燃比的合成的输出KACT。 循环滤波器23a和旋转滤波器23b对来自LAF传感器14的输出KACT进行滤波，使得允许第一频率fr1和第二频率fr2的各个频带中的分量通过。 根据第一滤波值KACT_Fc或第二滤波值KACT_Fr，在逐个汽缸的基础上确定最终燃料喷射量TOUTi，使得滤波值KACT_Fc或KACT_Fr的振幅收敛到预定值。

公开(公告)号：US06876933B2

公开(公告)日：2005-04-05

申请号：US10697796

申请日：2003-10-31

Applicant: Yuji Yasui ,  Yosuke Ishikawa ,  Takahide Mizuno ,  Michihiko Matsumoto

Inventor： Yuji Yasui ,  Yosuke Ishikawa ,  Takahide Mizuno ,  Michihiko Matsumoto

IPC: F02D45/00 ,  F02D41/00 ,  F02D41/14 ,  F02D41/18 ,  G01F1/00 ,  F02M25/07

CPC classification number: F02D41/18 ,  F02D41/0072 ,  F02D41/1402 ,  F02D41/1408 ,  F02D2041/1416 ,  F02D2200/0402 ,  F02D2200/0406

Abstract: A method and an apparatus for estimating an amount of drawn air of a cylinder and a method and an apparatus for controlling the amount of drawn air, are presented. An estimated value of an amount of drawn air of the cylinder, based on intake manifold pressure, is multiplied by a value of an identification parameter obtained by an adaptive observer, to obtain a final estimated value of an amount of drawn air of the cylinder. An accurate estimated value in a transient state as well as an estimated value not oscillating in a steady state can be obtained. Accordingly, accuracy of air-fuel ratio control can be remarkably increased.

Abstract translation: 提出了一种用于估计气缸的抽吸空气量的方法和装置，以及用于控制抽吸空气量的方法和装置。 基于进气歧管压力将气缸的抽吸空气量的估计值乘以由自适应观测器获得的识别参数的值，以获得气缸的抽吸空气量的最终估计值。 可以获得瞬态中的精确估计值以及在稳定状态下不振荡的估计值。 因此，可以显着提高空燃比控制的精度。

公开(公告)号：US06868326B2

公开(公告)日：2005-03-15

申请号：US10635461

申请日：2003-08-07

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F01N3/20 ,  F02D41/14 ,  G05B13/02 ,  G06G7/70

CPC classification number: F02D41/1441 ,  F02D41/1403 ,  F02D41/1456 ,  F02D41/1481 ,  F02D2041/1416 ,  F02D2041/1423 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/703 ,  G05B13/0255

Abstract: There are provided a control apparatus capable of controlling a controlled object with reduce dead time in sign inversion between the input to and the output from one of ΔΣ and ΣΔ modulation algorithms, thereby attaining improved convergence of the output from the controlled object to a target value and improved controllability. An ECU of the control apparatus calculates a limiting value DSMVO2L of a reference input DSMVO2, as DSMVO2L=−1 when DSMVO2

Abstract translation: 提供了一种控制装置，其能够在DeltaSigma和SigmaDelta调制算法之一的输入和输出之间以符号反转减少死区时间来控制受控对象，从而实现从受控对象的输出到目标值的改进的收敛 并提高可控性。 控制装置的ECU计算参考输入DSMVO2的极限值DSMVO2L，当DSMVO2 <-1时DSMVO2L = -1，当1

公开(公告)号：US06859717B2

公开(公告)日：2005-02-22

申请号：US10395995

申请日：2003-03-25

Applicant: Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

Inventor： Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

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

CPC classification number: F02D11/105 ,  F02D41/1402 ,  F02D41/1403 ,  F02D2041/1423 ,  F02D2041/1433

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050015193A1

公开(公告)日：2005-01-20

申请号：US10852264

申请日：2004-05-25

Applicant: Yuji Yasui ,  Kanako Shimojo

Inventor： Yuji Yasui ,  Kanako Shimojo

IPC: F02D11/10 ,  F02D13/02 ,  F02D31/00 ,  F02D41/14 ,  F16D48/02 ,  F16D48/06 ,  F16H61/02 ,  F16H61/08 ,  G05B5/01 ,  G05B13/02 ,  G05B13/04 ,  G06F7/00

CPC classification number: G05B13/04 ,  F02D31/002 ,  F02D41/1401 ,  F02D41/1403 ,  F02D2041/001 ,  F16D48/066 ,  F16D2500/1024 ,  F16D2500/10412 ,  F16D2500/1045 ,  F16D2500/3026 ,  F16D2500/30806 ,  F16D2500/3108 ,  F16D2500/31426 ,  F16D2500/3144 ,  F16D2500/50293 ,  F16D2500/5102 ,  F16D2500/70404 ,  F16D2500/7041 ,  F16D2500/7042 ,  F16D2500/70454 ,  F16D2500/70462 ,  F16D2500/70631 ,  F16D2500/7087 ,  F16H61/0213 ,  F16H61/08 ,  G05B5/01 ,  G05B13/0255 ,  G05B13/026 ,  G05B2219/41214 ,  G05B2219/41333 ,  G05B2219/41432

Abstract: A plant control system provides an enhanced capability of compensation for disturbance that abruptly changes. A controller includes a disturbance predictor for calculating a predicted value of disturbance on the basis of a drag force of a release spring and an assisting force of a compensation spring that are predicted on the basis of a clutch stroke, an adaptive disturbance observer for calculating an estimated value of disturbance on the basis of the estimated value of disturbance, a voltage to be applied to a motor, and the clutch stroke, and a sliding mode controller, which determines the voltage to be applied to the motor by carrying out control for making the clutch stroke follow a clutch stroke target value by determining the voltage to be applied to the motor by sliding mode control on the basis of the clutch stroke, the predicted value of disturbance, and the estimated value of disturbance.

Abstract translation: 工厂控制系统提供增强的突然变化干扰补偿能力。 控制器包括用于基于释放弹簧的牵引力和基于离合器行程预测的补偿弹簧的辅助力来计算预测的扰动值的扰动预测器，用于计算 基于估计的干扰值，对电动机施加的电压和离合器行程的干扰的估计值，以及滑动模式控制器，其通过进行制造的控制来确定施加到电动机的电压 通过基于离合器行程，干扰的预测值和扰动的估计值的滑动模式控制来确定施加到电动机的电压，离合器行程跟随离合器行程目标值。

公开(公告)号：US06840214B2

公开(公告)日：2005-01-11

申请号：US10600515

申请日：2003-06-23

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F02D45/00 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F02M7/00

CPC classification number: F02D41/008 ,  F02D41/1401 ,  F02D41/1439 ,  F02D41/1456 ,  F02D41/1458 ,  F02D2041/1416 ,  F02D2041/1423 ,  F02D2041/1433

Abstract: An air-fuel ratio control apparatus for controlling an air-fuel ratio of an air-fuel mixture to be supplied to an internal combustion engine having a plurality of cylinders so that the air-fuel ratio coincides with a target air-fuel ratio. An air-fuel ratio is detected by an air-fuel ratio sensor provided at a position downstream of a joining portion of an exhaust manifold connected to the plurality of cylinders. Model parameters of a controlled object model defined by a relation between an air-fuel ratio detected by the air-fuel ratio sensor and a fuel supply amount parameter that specifies a fuel supply amount to each cylinder of the engine. A degree of differences between air-fuel ratios of air-fuel mixtures to be supplied to the plurality of cylinders is determined according to the identified model parameters.

Abstract translation: 一种空燃比控制装置，用于控制供给到具有多个气缸的内燃机的空气燃料混合物的空燃比，使得空燃比与目标空燃比一致。 通过设置在与多个气缸连接的排气歧管的接合部下游的位置处的空燃比传感器来检测空燃比。 由空燃比传感器检测到的空燃比与指定发动机的每个气缸的燃料供给量的燃料供给量参数之间的关系定义的受控对象模型的模型参数。 根据所识别的模型参数来确定要提供给多个气缸的空气燃料混合物的空燃比之间的差异程度。

公开(公告)号：US20050000480A1

公开(公告)日：2005-01-06

申请号：US10859540

申请日：2004-06-03

Applicant: Yuji Yasui ,  Akiyuki Yonekawa

Inventor： Yuji Yasui ,  Akiyuki Yonekawa

IPC: F02D43/00 ,  F01L1/08 ,  F01L1/18 ,  F01L1/344 ,  F01L13/00 ,  F01N3/20 ,  F01N3/24 ,  F02D13/02 ,  F02D31/00 ,  F02D41/00 ,  F02D41/02 ,  F02D41/06 ,  F02D41/14 ,  F02D45/00 ,  F01L1/34 ,  F01L1/02 ,  F01N3/00

CPC classification number: F02D13/0211 ,  F01L1/08 ,  F01L1/18 ,  F01L1/3442 ,  F01L13/0047 ,  F01L2001/34483 ,  F01L2201/00 ,  F01L2800/00 ,  F01L2820/02 ,  F02D13/023 ,  F02D13/0246 ,  F02D31/002 ,  F02D41/0002 ,  F02D41/0255 ,  F02D41/062 ,  F02D41/1403 ,  F02D2041/001 ,  F02D2041/1416 ,  F02D2200/0402 ,  Y02T10/18 ,  Y02T10/26 ,  Y02T10/42

Abstract: A control system for an internal combustion engine, which is capable of reducing exhaust emissions during and after the start of the engine. A control system is capable of changing the valve-closing timing of intake valves relative to the valve-opening timing thereof as desired using a variable intake valve actuation assembly. The control system includes an ECU. The ECU sets a target auxiliary intake cam phase to a start value that sets the valve-closing timing of the intake valves to retarded-closing timing, during starting of the engine, and to a catalyst warmup value that sets the same to timing closer to timing in the Otto cycle operation, during catalyst warmup control after the start of the engine.

Abstract translation: 一种用于内燃机的控制系统，其能够在发动机起动期间和之后减少废气排放。 控制系统能够使用可变进气门致动组件根据需要改变进气门相对于其打开正时的阀关闭正时。 控制系统包括ECU。 ECU将目标辅助进气凸轮相位设定为起动值，该起动值将起动时的进气门的关闭正时设定为延迟关闭正时，并且将发动机起动时的催化剂预热值设定为更接近 在奥托循环运行时，在发动机起动后的催化剂预热控制期间。

公开(公告)号：US06816774B2

公开(公告)日：2004-11-09

申请号：US10366354

申请日：2003-02-14

Applicant: Yuji Yasui ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Yoshihisa Iwaki

IPC: B60T712

CPC classification number: F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N2430/06 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1475 ,  F02D41/1494 ,  G01N27/407 ,  Y02A50/2324 ,  Y02T10/22

Abstract: A system controls the air-fuel ratio in an exhaust gas supplied from an internal combustion engine to a catalytic converter in order to keep an output voltage Vout of an O2 sensor disposed downstream of the catalytic converter at a predetermined target value Vop. In the system, the temperature of an active element of the O2 sensor is controlled at a predetermined temperature such that the output voltage of the O2 sensor at an inflection point of output characteristics thereof is substantially the same as the target value Vop.

公开(公告)号：US06792928B2

公开(公告)日：2004-09-21

申请号：US10702429

申请日：2003-11-07

Applicant: Yuji Yasui ,  Yosuke Ishikawa ,  Shintaro Minowa

Inventor： Yuji Yasui ,  Yosuke Ishikawa ,  Shintaro Minowa

IPC: F02B7508

CPC classification number: F02D41/1454 ,  F02D41/1402 ,  F02D41/1456 ,  F02D41/1458 ,  F02D41/1495 ,  F02D41/2458 ,  F02D41/2474 ,  F02D2041/1416 ,  F02D2041/1433 ,  F02D2041/1434

Abstract: There is provided a degradation determining system for an exhaust gas sensor, which, even when unexpected changes occur in the air-fuel ratio during execution of air-fuel ratio control, can determine degradation of the sensor by suppressing adverse influence of noise caused by the changes on the output from the sensor, to thereby enhance the accuracy of the degradation determination. In the degradation determining system, a determining input signal IDSIN for determining the degradation of the sensor is generated, and a modulation output (u(k), DSMSGNS(k), us(k), or ud(k)) is generated by modulating the determining input signal IDSIN by using any one of the &Dgr;&Sgr; modulation algorithm, the &Sgr;&Dgr; modulation algorithm, and the &Dgr; modulation algorithm. Degradation of the sensor is determined based on the output KACT delivered from the sensor when the fuel injection amount is controlled based on the generated modulation output.

公开(公告)号：US06668200B2

公开(公告)日：2003-12-23

申请号：US10145546

申请日：2002-05-14

Applicant: Yuji Yasui ,  Yoshihisa Iwaki ,  Jun Takahashi

Inventor： Yuji Yasui ,  Yoshihisa Iwaki ,  Jun Takahashi

IPC: G05B1302

CPC classification number: F02D35/0007 ,  F02D41/1403 ,  G05B13/047 ,  G05B13/048

Abstract: A control system for a plant, includes a sliding mode controller for controlling the plant with a sliding mode control. The sliding mode controller controls the plant using a switching function defined as a linear function of a deviation between an output of the plant and a control target value, and changes the switching function according to at least one of a parameter indicative of the output of the plant and a parameter indicative of an amount of change in the output of the plant.

Abstract translation: 一种用于工厂的控制系统，包括滑动模式控制器，用于通过滑动模式控制来控制工厂。 滑动模式控制器使用定义为工厂的输出与控制目标值之间的偏差的线性函数的切换功能来控制工厂，并且根据指示输出的参数中的至少一个来改变切换功能 植物和指示植物输出量变化的参数。