公开(公告)号：US07314028B2

公开(公告)日：2008-01-01

申请号：US11446296

申请日：2006-06-05

Applicant: Yuji Yasui ,  Hiroshi Tagami

Inventor： Yuji Yasui ,  Hiroshi Tagami

IPC: F01L1/34

CPC classification number: F02D41/401 ,  F01L1/022 ,  F01L1/3442 ,  F01L13/0063 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2820/032 ,  F02D13/0203 ,  F02D13/0215 ,  F02D13/0253 ,  F02D13/0261 ,  F02D37/02 ,  F02D41/0002 ,  F02D2041/001 ,  F02D2200/023 ,  F02D2200/0414 ,  F02P5/045 ,  F02P5/1514 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/44 ,  Y02T10/46

Abstract: A control apparatus for an internal combustion engine for controlling the engine while compensating for a deviation of an intake air amount from the proper value, caused by the thermal expansion and contraction of a variable intake mechanism thereof, which makes it possible to improve the control accuracy, make the engine compact in size, increase the degree of freedom of design, and reduce manufacturing costs. An ECU of an control apparatus of the engine calculates an FF correction value based on a thermodynamic model of a variable valve lift mechanism, calculates an FB correction value according to an air-fuel ratio correction coefficient and an actual air-fuel ratio, calculates a lift correction value as the difference between the FF correction value and the FB correction value or as a value of the FF correction value, corrects the valve lift by the lift correction value to thereby calculate a corrected valve lift, and carries out air-fuel ratio control and ignition timing control according to the corrected valve lift.

Abstract translation: 一种用于控制发动机的内燃机的控制装置，同时补偿由其可变进气机构的热膨胀和收缩引起的进气量与适当值的偏差，这使得可以提高控制精度 ，使发动机尺寸紧凑，增加设计自由度，降低制造成本。 发动机的控制装置的ECU基于可变气门升程机构的热力学模型计算FF校正值，根据空燃比校正系数和实际空燃比计算FB校正值，计算出 升程校正值作为FF校正值和FB校正值之间的差值或作为FF校正值的值，通过升程校正值来校正气门升程，从而计算校正的气门升程，并且执行空燃比 根据校正的气门升程控制和点火正时控制。

公开(公告)号：US20060027197A1

公开(公告)日：2006-02-09

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：US20080046143A1

公开(公告)日：2008-02-21

申请号：US11630108

申请日：2005-06-20

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

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

IPC: G06F7/00

CPC classification number: F02D13/0226 ,  F02D13/0207 ,  F02D13/0238 ,  F02D41/18 ,  F02D2200/0402 ,  Y02T10/18

Abstract: A device, a method, and a program for estimating an intake air amount. The device for estimating the intake air amount used for providing the intake air amount of an internal combustion engine having a variable valve mechanism comprises a reference value acquisition means for providing an intake air amount reference value from a specified map based on the rotational speed, valve lift, and valve phase angle of the internal combustion engine, a measurement value acquisition means for providing a measurement value according to the output of an air flow meter installed in the intake pipe of the internal combustion engine, a calculation means for providing a correction factor to minimize a deviation between a value obtained by multiplying the intake air amount reference value by the correction factor and the measurement value, and an estimated value calculating means for calculating an estimated intake air amount value by multiplying the provided correction factor by the intake air amount reference value.

Abstract translation: 一种用于估计进气量的装置，方法和程序。 用于估计用于提供具有可变阀机构的内燃机的进气量的进气量的装置包括：基准值获取装置，用于基于转速从指定的图提供进气量参考值，阀 提升和阀相位角;测量值获取装置，用于根据安装在内燃机的进气管中的空气流量计的输出提供测量值;计算装置，用于提供校正系数 以减小通过将进气量参考值乘以校正系数而获得的值与测量值之间的偏差;以及估计值计算装置，用于通过将所提供的校正系数乘以进气量来计算估计进气量值 参考值。

公开(公告)号：US06760658B2

公开(公告)日：2004-07-06

申请号：US10001817

申请日：2001-12-05

Applicant: Yuji Yasui ,  Hiroshi Tagami ,  Yoshihisa Iwaki ,  Kunihiro Morishita

Inventor： Yuji Yasui ,  Hiroshi Tagami ,  Yoshihisa Iwaki ,  Kunihiro Morishita

IPC: B60T712

CPC classification number: F01N3/0842 ,  F02D41/0275 ,  F02D41/1404 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1458 ,  F02D2041/1433

Abstract: An exhaust emission control system for an internal combustion engine having an exhaust system is disclosed. The control system may include an exhaust gas purifying device provided in the exhaust system and an oxygen concentration sensor provided downstream of the exhaust gas purifying device. The exhaust gas purifying device may include at least an oxygen storing ability or a nitrogen oxide storing ability. An air-fuel ratio of an air-fuel mixture supplied to the engine may be enriched with respect to the stoichiometric air-fuel ratio, so as to reduce the oxygen or nitrogen oxides stored in the exhaust gas purifying device. A predicted value of the output from the oxygen concentration sensor may be calculated using a predictor based on the fuzzy logic reasoning. The completion of the reduction of the oxygen or nitrogen oxides stored in said exhaust gas purifying device may be determined according to the predicted value.

Abstract translation: 公开了一种具有排气系统的内燃机废气排放控制系统。 控制系统可以包括设置在排气系统中的废气净化装置和设置在废气净化装置的下游的氧浓度传感器。 废气净化装置可以至少具有氧气存储能力或氮氧化物保存能力。 供给到发动机的空气燃料混合物的空燃比可以相对于化学计量空燃比富集，以便减少存储在排气净化装置中的氧或氮氧化物。 可以使用基于模糊逻辑推理的预测器来计算氧浓度传感器的输出的预测值。 可以根据预测值来确定存储在所述废气净化装置中的氧或氮氧化物的还原的完成。

公开(公告)号：US06684150B2

公开(公告)日：2004-01-27

申请号：US10068096

申请日：2002-02-01

Applicant: Yuji Yasui ,  Hiroshi Tagami ,  Yoshihisa Iwaki ,  Kunihiro Morishita

Inventor： Yuji Yasui ,  Hiroshi Tagami ,  Yoshihisa Iwaki ,  Kunihiro Morishita

IPC: F02D4114

CPC classification number: F02D41/1458 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1481 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/1431 ,  F02D2400/08 ,  G05B13/047

Abstract: A manipulation variable generating unit 7 for generating a target air-fuel ratio KCMD to converge the output of an oxygen concentration sensor 5 disposed downstream of a catalytic converter 3 in an exhaust system E as a plant to a given target value has a plurality of estimators for generating data indicating estimated values of the output of the oxygen concentration sensor after a dead time of the exhaust system E or a total dead time which is the sum of the dead time of the exhaust system E and a dead time of a system comprising an engine control unit 8 and an internal combustion engine 1, according to respective different algorithms. The manipulation variable generating unit 7 generates the target air-fuel ratio KCMD according to an adaptive sliding mode control process using a value selected from the estimated values or a combined value representing a combination of the estimated values.

Abstract translation: 用于产生目标空燃比KCMD的操作变量产生单元7将设置在作为设备的排气系统E中的催化转化器3的下游的氧浓度传感器5的输出收敛到给定目标值，具有多个估计器 用于产生指示在排气系统E的死区时间之后的氧浓度传感器的输出的估计值的数据或作为排气系统E的死区时间与包括排气系统E的系统的死区时间之和的总死区时间 发动机控制单元8和内燃机1，根据各自的不同算法。 操作变量生成单元7根据自适应滑动模式控制处理，使用从估计值中选择的值或表示估计值的组合的组合值来生成目标空燃比KCMD。

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：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：US07587268B2

公开(公告)日：2009-09-08

申请号：US12009218

申请日：2008-01-17

Applicant: Hiroshi Tagami ,  Yuji Yasui

Inventor： Hiroshi Tagami ,  Yuji Yasui

IPC: G06G7/70

CPC classification number: F02D41/10 ,  F01L1/20 ,  F01L1/3442 ,  F01L13/0063 ,  F01L2001/0537 ,  F01L2105/00 ,  F01L2820/031 ,  F02D13/0226 ,  F02D41/0002 ,  F02D2041/001 ,  F02D2200/501 ,  F02D2200/702 ,  Y02T10/18 ,  Y02T10/42

Abstract: A control system for an internal combustion engine, which is capable of ensuring excellent fuel economy of the engine and enhancing the responsiveness of the output of the engine when acceleration is demanded. The control system calculates a lift control input for controlling a variable valve lift mechanism, based on a cam phase of a variable cam phase mechanism, and calculates a demanded acceleration indicative of the degree of acceleration demanded of the engine. Further, the control system calculates a value of phase control input for controlling the variable cam phase mechanism with priority to the engine output, and calculates a value of the same with priority to fuel economy of the engine, and selects between the values of phase control input, based on the demanded acceleration.

Abstract translation: 一种用于内燃机的控制系统，其能够确保发动机的优良的燃料经济性并且当需要加速时增强发动机的输出的响应性。 控制系统基于可变凸轮相位机构的凸轮相位来计算用于控制可变气门升程机构的升程控制输入，并计算指示发动机所要求的加速度的要求加速度。 此外，控制系统计算用于控制可变凸轮相位机构的相位控制输入的值，优先于发动机输出，并且计算与发动机的燃料经济性相同的值，并且在相位控制值之间进行选择 输入，根据需求加速度。

公开(公告)号：US20060283414A1

公开(公告)日：2006-12-21

申请号：US11446296

申请日：2006-06-05

Applicant: Yuji Yasui ,  Hiroshi Tagami

Inventor： Yuji Yasui ,  Hiroshi Tagami

IPC: F01L1/02 ,  F01L1/34

CPC classification number: F02D41/401 ,  F01L1/022 ,  F01L1/3442 ,  F01L13/0063 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2820/032 ,  F02D13/0203 ,  F02D13/0215 ,  F02D13/0253 ,  F02D13/0261 ,  F02D37/02 ,  F02D41/0002 ,  F02D2041/001 ,  F02D2200/023 ,  F02D2200/0414 ,  F02P5/045 ,  F02P5/1514 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/44 ,  Y02T10/46

Abstract: A control apparatus for an internal combustion engine for controlling the engine while compensating for a deviation of an intake air amount from the proper value, caused by the thermal expansion and contraction of a variable intake mechanism thereof, which makes it possible to improve the control accuracy, make the engine compact in size, increase the degree of freedom of design, and reduce manufacturing costs. An ECU of an control apparatus of the engine calculates an FF correction value based on a thermodynamic model of a variable valve lift mechanism, calculates an FB correction value according to an air-fuel ratio correction coefficient and an actual air-fuel ratio, calculates a lift correction value as the difference between the FF correction value and the FB correction value or as a value of the FF correction value, corrects the valve lift by the lift correction value to thereby calculate a corrected valve lift, and carries out air-fuel ratio control and ignition timing control according to the corrected valve lift.

Abstract translation: 一种用于控制发动机的内燃机的控制装置，同时补偿由其可变进气机构的热膨胀和收缩引起的进气量与适当值的偏差，这使得可以提高控制精度 ，使发动机尺寸紧凑，增加设计自由度，降低制造成本。 发动机的控制装置的ECU基于可变气门升程机构的热力学模型计算FF校正值，根据空燃比校正系数和实际空燃比计算FB校正值，计算出 升程校正值作为FF校正值和FB校正值之间的差值或作为FF校正值的值，通过升程校正值来校正气门升程，从而计算校正的气门升程，并且执行空燃比 根据校正的气门升程控制和点火正时控制。

公开(公告)号：US06292739B1

公开(公告)日：2001-09-18

申请号：US09465765

申请日：1999-12-17

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

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

IPC: F02D4114

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。