公开(公告)号：US07451754B2

公开(公告)日：2008-11-18

申请号：US11587966

申请日：2005-04-21

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

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

IPC: F02D41/18

CPC classification number: F02D13/023 ,  F01L13/0063 ,  F01L2800/00 ,  F01L2820/032 ,  F02B75/048 ,  F02D13/0238 ,  F02D15/02 ,  F02D41/182 ,  F02D41/22 ,  F02D2200/0402 ,  F02D2400/08 ,  Y02T10/18

Abstract: A control system for an internal combustion engine, which is capable of enhancing the accuracy of fuel control and ignition timing control even when there is a possibility that the reliability of a calculated intake air amount lowers, and enables reduction of manufacturing costs. An ECU of the control system calculates a first estimated intake air amount according to a valve lift, a cam phase, and a compression ratio, calculates a second estimated intake air amount according to the flow rate of air detected by an air flow sensor. The ECU determines a fuel injection amount according to the first estimated intake air amount when an estimated flow rate Gin_vt calculated based on an engine speed, the valve lift, the cam phase, and the compression ratio is within the range of Gin_vt≦Gin1, and according to the second estimated intake air amount when Gin2≦Gin_vt.

Abstract translation: 即使存在计算出的进气量的可靠性降低的情况下，能够提高燃料控制和点火正时控制的精度的内燃机的控制系统，能够降低制造成本。 控制系统的ECU根据气门升程，凸轮相位和压缩比来计算第一估计进气量，根据由空气流量传感器检测的空气流量计算第二估计进气量。 当基于发动机转速，气门升程，凸轮相位和压缩比计算的估计流量Gin_vt在Gin_vt <= Gin 1的范围内时，ECU根据第一估计进气量判定燃料喷射量 ，并且根据Gin 2 <= Gin_vt时的第二估计进气量。

公开(公告)号：US07440836B2

公开(公告)日：2008-10-21

申请号：US11628499

申请日：2005-06-10

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

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

IPC: G06G7/70 ,  F02M25/07 ,  F02D41/04

CPC classification number: F02D37/02 ,  F01L1/34 ,  F01L1/3442 ,  F01L13/0021 ,  F01L13/0063 ,  F01L2001/3443 ,  F02D41/1401 ,  F02D41/1454 ,  F02D41/187 ,  F02D41/221 ,  F02D2041/001

Abstract: A control system for an internal combustion engine, which is capable of properly performing air-fuel ratio control and ignition timing control according to an actual amount of intake air, even when reliability of the results of detection of the operating condition of a variable intake mechanism is low. The control system for controlling air-fuel ratio and ignition timing includes an ECU. The ECU calculates a target air-fuel ratio, calculates an air-fuel ratio correction coefficient, calculates a statistically processed value of an air-fuel ratio index value, calculates a corrected valve lift and a corrected cam phase, and determines a fuel injection amount according to the corrected valve lift, the corrected cam phase, and the air-fuel ratio correction coefficient.

Abstract translation: 一种用于内燃机的控制系统，其能够根据实际的进气量适当地执行空燃比控制和点火正时控制，即使在可变进气机构的运行状态的检测结果的可靠性 低。 用于控制空燃比和点火正时的控制系统包括ECU。 ECU计算目标空燃比，计算空燃比校正系数，计算空燃比指标值的统计处理值，计算校正后的气门升程和校正的凸轮相位，并且确定燃料喷射量 根据校正的气门升程，校正的凸轮相位和空燃比校正系数。

公开(公告)号：US07439700B2

公开(公告)日：2008-10-21

申请号：US11659614

申请日：2005-09-09

Applicant: Kanako Shimojo ,  Yuji Yasui

Inventor： Kanako Shimojo ,  Yuji Yasui

IPC: H02P29/00 ,  F02D13/02 ,  G05B13/02

CPC classification number: F02D13/02 ,  F02D35/0007 ,  F02D41/221 ,  F02D2041/1422 ,  F02D2041/2048 ,  F02D2041/2058 ,  G05B13/021 ,  Y02T10/18 ,  Y02T10/40

Abstract: A control system which is capable of avoiding an overloaded state of an actuator without using sensors or the like. An ECU 2 of the control system 1 calculates a lift control input U_Liftin to a variable valve lift mechanism 50 with an algorithm expressed by equations (2) to (5), such that the valve lift Liftin follows up a target valve lift Liftin_cmd, calculates a cumulative value Simot by cumulative calculation of the product of the value Imot of electric current flowing through the variable valve lift mechanism 50 and a sampling time period Stime, and when SImot≧Simot_J1 holds, sets two parameters pole_f_lf and ploe_lf to respective predetermined failure-time parameters pole_f_lf_J1 and ploe_lf_J1 which cause the lift control input U_Liftin to become smaller than when Simot

Abstract translation: 一种能够避免使用传感器等的致动器的过载状态的控制系统。 控制系统1的ECU2使用由等式（2）至（5）表示的算法计算到可变气门升程机构50的升程控制输入U_Liftin，使得气门升程Liftin跟随目标气门升程Liftin_cmd，计算 通过累积计算流过可变气门提升机构50的电流值Imot和采样时间段Stime的累积值Simot，并且当SImot> = Simot_J1成立时，将两个参数pole_f_lf和ploe_lf设定为相应的预定值 故障时间参数pole_f_lf_J 1和ploe_lf_J 1，导致电梯控制输入U_Liftin变得比Simot

公开(公告)号：US20080255750A1

公开(公告)日：2008-10-16

申请号：US11791278

申请日：2005-12-01

Applicant: Yuji Yasui ,  Masahiro Sato

Inventor： Yuji Yasui ,  Masahiro Sato

IPC: F02D41/00

CPC classification number: F02D41/008 ,  F02D41/0085 ,  F02D41/1401 ,  F02D2041/1419 ,  G05B13/024

Abstract: Apparatus and method for air/fuel ratio control for smoothening variation of air/fuel ratio among a plurality of cylinders of an internal combustion engine including a sensor for measuring output of the internal combustion engine. A device calculates a correlation function of each cylinder by taking cross-correlation of values measured by the sensor and a reference signal for each cylinder. A device then calculates a smoothing target value which is common for all of the cylinders. Cylinder controllers produce control input to the respective cylinders such that the correlation function converges to the smoothing target value.

Abstract translation: 一种用于使内燃机的多个气缸中的空气/燃料比的变化平滑的装置和方法，所述内燃机包括用于测量内燃机的输出的传感器。 设备通过将由传感器测量的值和每个气缸的参考信号相互相关来计算每个气缸的相关函数。 然后，设备计算对于所有气缸是共同的平滑目标值。 气缸控制器产生对相应气缸的控制输入，使得相关函数收敛到平滑目标值。

公开(公告)号：US20080172165A1

公开(公告)日：2008-07-17

申请号：US12009218

申请日：2008-01-17

Applicant: Hiroshi Tagami ,  Yuji Yasui

Inventor： Hiroshi Tagami ,  Yuji Yasui

IPC: F02D29/02 ,  F01L1/34 ,  F02D13/02

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：US07377258B2

公开(公告)日：2008-05-27

申请号：US10528454

申请日：2003-10-07

Applicant: Yosuke Ishikawa ,  Yuji Yasui

Inventor： Yosuke Ishikawa ,  Yuji Yasui

IPC: F02P5/145

CPC classification number: F02P5/1506 ,  F02D31/005 ,  F02D41/0255 ,  F02D2041/1409 ,  F02P5/1508 ,  Y02T10/46

Abstract: An ignition timing value of the internal-combustion engine is calculated by using correction terms including a first correction term that is calculated based on a controlled variable without reflecting a desired value and a second correction term that is calculated based on a difference between the controlled variable and the desired value. The first correction term can be calculated based on the controlled variable with no influence of the desired value. Thus, a sudden change does not occur in the feedback controlled variable even in a situation where the difference between the controlled variable and the desired value changes step-wise. Besides, the first correction term is a proportional term (51) and the second correction term is an integral term (55). The controlled variable is a rotational speed of the internal-combustion engine (NE) that is detected by a detector for detecting the engine rotational speed.

Abstract translation: 通过使用包括基于受控变量计算的第一校正项而不反映期望值的校正项和基于控制变量之间的差计算的第二校正项来计算内燃机的点火正时值 和所需的值。 可以基于受控变量计算第一个校正项，而不受所需值的影响。 因此，即使在受控变量和期望值之间的差异逐步变化的情况下，反馈控制变量也不会发生突然变化。 此外，第一校正项是比例项（51），第二校正项是积分项（55）。 受控变量是由用于检测发动机转速的检测器检测的内燃机（NE）的转速。

公开(公告)号：US20080059042A1

公开(公告)日：2008-03-06

申请号：US10593641

申请日：2005-03-17

Applicant: Yuji Yasui ,  Kanako Shimojo

Inventor： Yuji Yasui ,  Kanako Shimojo

IPC: F02D28/00

CPC classification number: G05B21/02 ,  F02D41/1401 ,  F02D2041/143 ,  G05B2219/41154 ,  G05B2219/41156 ,  G05B2219/41158

Abstract: There is provided a control method for sufficiently compensating the non-linear characteristic for a plant having a strong non-linear characteristic and satisfying the follow-up and stability for a plant having a large control amount fluctuation. There is provided a plant control device using modulation algorithm. The control device includes: means for calculating a temporary control input for controlling the plant output to a target value; means for dividing the temporary control input into a plurality of components; means for modulating at least one of the components; and means for adding the modulated component to another component so as to generate a control input. Thus, it is possible to minimize the input fluctuation caused by modulation while maintaining the compensation ability of the non-linear characteristic such as plant friction and hysteresis attributed to the conventional modulation algorithm. Accordingly, even in a plant in which the temporary control input is greatly changed, it is possible to prevent oscillation of the output, thereby improving the controllability.

Abstract translation: 提供了一种用于充分补偿具有强非线性特性的设备的非线性特性并满足具有较大控制量波动的设备的后续和稳定性的控制方法。 提供了使用调制算法的工厂控制装置。 控制装置包括：用于计算用于将工厂输出控制为目标值的临时控制输入的装置; 用于将临时控制输入划分成多个部件的装置; 用于调节至少一个组分的装置; 以及用于将调制分量添加到另一分量以产生控制输入的装置。 因此，可以将由调制引起的输入波动最小化，同时保持归因于常规调制算法的非线性特性如工厂摩擦和滞后的补偿能力。 因此，即使在临时控制输入大大变化的设备中，也可以防止输出的振荡，从而提高控制性。

公开(公告)号：US20070293956A1

公开(公告)日：2007-12-20

申请号：US11663160

申请日：2005-11-01

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: G05B19/00

CPC classification number: G05B13/042 ,  F01L13/0021 ,  F01L13/0063 ,  F01L2800/00 ,  F01L2820/032 ,  F02D41/0002 ,  F02D41/1401 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1433 ,  F02D2041/1437 ,  G05B13/041 ,  G05B21/02

Abstract: There is provided a control system for a plant and an internal combustion engine, which is capable of enhancing controllability and control accuracy in controlling a plurality of control amounts while eliminating a mutual interaction existing between a plurality of control inputs and the control amounts. The control system 1 for the plant 90 in which a mutual interaction exists between TH_cmd and Liftin_cmd as control inputs and PB and Gcyl as control amounts calculates the two control inputs TH_cmd and Liftin_cmd as two non-interacting inputs for causing PB and Gcyl to follow target values PB_cmd and Gcyl_cmd, respectively, the two control inputs TH_cmd and Liftin_cmd eliminating the mutual interaction, with a predetermined algorithm in which a predetermined response-specifying control algorithm (equations (2) to (8)) and a predetermined non-interacting control algorithm (equation (9)) are combined based on a plant model (equation (20)) formed by modeling the plant 90 into a discrete-time system model.

Abstract translation: 提供了一种用于工厂和内燃机的控制系统，其能够在消除多个控制输入之间存在的相互作用和控制量的同时增强控制多个控制量的可控性和控制精度。 用于作为控制输入的TH_cmd和Liftin_cmd之间存在相互作用的工厂90的控制系统1和作为控制量的PB和Gcyl作为控制量计算两个控制输入TH_cmd和Liftin_cmd作为两个非相互作用的输入，以使PB和Gcyl跟随目标 分别使用预定的响应指定控制算法（等式（2）至（8））和预定的非交互控制算法的预定算法来消除相互交互的两个控制输入TH_cmd和Liftin_cmd的值PB_cmd和Gcyl_cmd （等式（9））基于通过将工厂90建模成离散时间系统模型而形成的植物模型（等式（20））来组合。

公开(公告)号：US20070235007A1

公开(公告)日：2007-10-11

申请号：US11713722

申请日：2007-03-05

Applicant: Yuji Yasui ,  Ikue Kawasumi

Inventor： Yuji Yasui ,  Ikue Kawasumi

IPC: F02P5/145

CPC classification number: F02P5/045 ,  F01L1/20 ,  F01L1/3442 ,  F01L13/0063 ,  F01L2001/0537 ,  F01L2001/3443 ,  F01L2001/34453 ,  F01L2105/00 ,  F01L2820/032 ,  F02B75/045 ,  F02B75/048 ,  F02D13/023 ,  F02D13/0238 ,  F02D15/02 ,  F02D41/1497 ,  F02D2041/001 ,  F02D2250/18 ,  F02D2250/22 ,  F02P5/1504 ,  Y02T10/18 ,  Y02T10/46

Abstract: An ignition timing control system for an internal combustion engine, which is capable of reducing the capacity of a memory that stores data used in controlling ignition timing, thereby reducing manufacturing costs. An ignition timing control system that controls ignition timing of an internal combustion engine calculates a maximum torque parameter indicative of a maximum torque that the engine can output when the engine is at the detected rotational speed, according to the detected rotational speed, calculates an output torque parameter indicative of an output torque being output from the engine, calculates a torque ratio as a ratio between the output torque parameter and the maximum torque parameter, and determines the ignition timing according to the engine speed and the torque ratio.

Abstract translation: 一种用于内燃机的点火正时控制系统，其能够降低存储用于控制点火正时数据的存储器的容量，从而降低制造成本。 控制内燃机的点火正时的点火正时控制系统根据检测出的转速来计算表示发动机能够输出的最大转矩的最大转矩参数，根据检测出的转速，计算输出转矩 表示从发动机输出的输出转矩的参数，计算转矩比作为输出转矩参数与最大转矩参数之间的比例，并根据发动机转速和转矩比确定点火正时。

公开(公告)号：US20070225892A1

公开(公告)日：2007-09-27

申请号：US11587966

申请日：2005-04-21

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

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

IPC: G06F7/00

CPC classification number: F02D13/023 ,  F01L13/0063 ,  F01L2800/00 ,  F01L2820/032 ,  F02B75/048 ,  F02D13/0238 ,  F02D15/02 ,  F02D41/182 ,  F02D41/22 ,  F02D2200/0402 ,  F02D2400/08 ,  Y02T10/18

Abstract: A control system for an internal combustion engine, which is capable of enhancing the accuracy of fuel control and ignition timing control even when there is a possibility that the reliability of a calculated intake air amount lowers, and enables reduction of manufacturing costs. An ECU of the control system calculates a first estimated intake air amount according to a valve lift, a cam phase, and a compression ratio, calculates a second estimated intake air amount according to the flow rate of air detected by an air flow sensor. The ECU determines a fuel injection amount according to the first estimated intake air amount when an estimated flow rate Gin_vt calculated based on an engine speed, the valve lift, the cam phase, and the compression ratio is within the range of Gin_vt≦Gin1, and according to the second estimated intake air amount when Gin2≦Gin_vt.

Abstract translation: 即使存在计算出的进气量的可靠性降低的情况下，能够提高燃料控制和点火正时控制的精度的内燃机的控制系统，能够降低制造成本。 控制系统的ECU根据气门升程，凸轮相位和压缩比来计算第一估计进气量，根据由空气流量传感器检测的空气流量计算第二估计进气量。 当基于发动机转速，气门升程，凸轮相位和压缩比计算的估计流量Gin_vt在Gin_vt <= Gin 1的范围内时，ECU根据第一估计进气量判定燃料喷射量 ，并且根据Gin 2 <= Gin_vt时的第二估计进气量。