公开(公告)号：US07593805B2

公开(公告)日：2009-09-22

申请号：US11665855

申请日：2005-09-27

申请人： Kanako Shimojo ,  Yuji Yasui

发明人： Kanako Shimojo ,  Yuji Yasui

IPC分类号： G06F19/00 ,  F01L1/34 ,  F02B75/12

CPC分类号： F02D13/0226 ,  F01L1/181 ,  F01L1/185 ,  F01L1/20 ,  F01L13/0063 ,  F01L2001/0537 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2820/032 ,  Y02T10/18

摘要： To provide a control system for an internal combustion engine, which is capable of attaining both the securing of excellent drivability and the reduction of impact occurring when a movable part abuts against a restriction part at the same time. The control system 1 includes a variable valve lift mechanism 50 that changes a valve lift Liftin, and includes a restriction part 67a for having a movable part 65 abut thereagainst for restricting the valve lift Liftin such that it does not exceed a predetermined limit lift Liftin_L, and a variable intake air amount mechanism 11 that changes the intake air amount. The control system calculates a control input ULiftin for control of the variable valve lift mechanism 50, with a predetermined control algorithm including a disturbance suppression parameter POLE_lf (step 54), such that the valve lift Liftin follows up the target valve lift Liftin_cmd. When a determination that the movable part 65 has abutted against the restriction part 67a is made, the control system sets the disturbance suppression parameter POLE_lf such that the degree of suppression of the disturbance thereby becomes smaller than before the determination (step 73).

摘要翻译： 提供一种用于内燃机的控制系统，其能够同时确保优异的驾驶性能和减少当可动部件同时抵靠限制部件时发生的冲击。 控制系统1包括改变气门升程升降机构的可变气门升程机构50，并且包括限制部分67a，用于使可动部分65靠在其上以限制气门升程Liftin使其不超过预定的限位升程Liftin_L， 以及改变进气量的可变进气量机构11。 控制系统使用包括干扰抑制参数POLE_lf（步骤54）的预定控制算法来计算用于控制可变气门升程机构50的控制输入ULiftin，使得气门升程Liftin跟随目标气门升程Liftin_cmd。 当确定可移动部分65已经抵靠限制部分67a时，控制系统设置干扰抑制参数POLE_lf，使得干扰的抑制程度变得比确定之前变小（步骤73）。

公开(公告)号：US07568454B2

公开(公告)日：2009-08-04

申请号：US10574804

申请日：2004-10-13

申请人： Yuji Yasui ,  Noriaki Fujii ,  Hisao Sakai

发明人： Yuji Yasui ,  Noriaki Fujii ,  Hisao Sakai

IPC分类号： F01L1/34

CPC分类号： F02D13/0226 ,  F01L1/18 ,  F01L1/185 ,  F01L1/34 ,  F01L1/352 ,  F01L13/0063 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2820/02 ,  F01L2820/032 ,  F02D13/0238 ,  F02D41/0002 ,  F02D41/1403 ,  F02D2041/001 ,  F02D2041/1415 ,  F02D2041/1418 ,  Y02T10/18 ,  Y02T10/42

摘要： There is provided an intake air amount control system for an internal combustion engine, which controls the amount of intake air by executing both cam phase control and valve lift control, and is capable of enhancing response and accuracy of the intake air amount control, while avoiding interaction between the cam phase control and the valve lift control. In the intake air amount control system 1, an ECU 2 controls the amount of intake air according to a target valve lift Liftin_cmd and a target cam phase Cain_cmd. The Liftin_cmd and Cain_cmd are respectively calculated as the sums of master values Liftin_cmd_ms and Cain_cmd_ms for causing an actual intake air amount Gcyl to converge to a target intake air amount Gcyl_cmd, and slave values Liftin_cmd_sl and Cain_cmd_sl set according to the master values Liftin_cmd_ms and Cain_cmd_ms (steps 56 and 64). In a lift master mode, Cain_cmd_ms is set such that Cain_cmd_ms=0 holds (step 63), and in a phase master mode, Liftin_cmd_ms is set such that Liftin_cmd_ms=0 holds (step 55).

摘要翻译： 提供了一种用于内燃机的进气量控制系统，其通过执行凸轮相位控制和气门升程控制来控制进气量，并且能够提高进气量控制的响应和精度，同时避免 凸轮相位控制和气门升程控制之间的相互作用。 在进气量控制系统1中，ECU2根据目标气门升程Liftin_cmd和目标凸轮相位Cain_cmd来控制进气量。 Liftin_cmd和Cain_cmd分别计算为主值Liftin_cmd_ms和Cain_cmd_ms的总和，以使实际进气量Gcyl收敛到目标进气量Gcyl_cmd，并且根据主值Liftin_cmd_ms和Cain_cmd_ms设置从属值Liftin_cmd_s1和Cain_cmd_sl 步骤56和64）。 在升降机主模式中，设定Cain_cmd_ms使得Cain_cmd_ms = 0成立（步骤63），并且在相位主模式中，设置Liftin_cmd_ms使得Liftin_cmd_ms = 0成立（步骤55）。

公开(公告)号：US20090132144A1

公开(公告)日：2009-05-21

申请号：US11665054

申请日：2005-09-29

申请人： Koichiro Shinozaki ,  Yuji Yasui ,  Katsura Okubo ,  Masahiro Sato

发明人： Koichiro Shinozaki ,  Yuji Yasui ,  Katsura Okubo ,  Masahiro Sato

IPC分类号： F02D45/00 ,  G01M15/08 ,  F02D15/02

CPC分类号： F02D35/023 ,  F02D15/02 ,  F02D41/1497 ,  F02D2041/288

摘要： Work done by an engine can be accurately calculated regardless of the part in an observation section where the cylinder internal pressure signal is detected. The apparatus for calculating the work done by an engine establishes in advance correlation of phase between the cylinder internal pressure of the engine and a reference signal composed of a predetermined frequency component as a reference phase relation. A means for detecting the cylinder internal pressure of the engine for a predetermined observation section is provided. A reference signal corresponding to the detected cylinder internal pressure of the engine is calculated so that the reference phase relation is satisfied. A correlation coefficient of the detected cylinder internal pressure of the engine and the calculated reference signal is calculated for the observation section and the work done by the engine is calculated in accordance with the correlation coefficient.

摘要翻译： 无论检测到气缸内部压力信号的观察部分中的部分如何，都可以精确地计算发动机的作业。 用于计算由发动机完成的作业的装置预先将发动机的气缸内部压力与由预定频率分量组成的参考信号之间的相位相关，作为参考相位关系。 提供了一种用于检测用于预定观察部分的发动机的气缸内部压力的装置。 计算与检测到的发动机气缸内部压力相对应的参考信号，使得满足基准相位关系。 对于观测部分计算检测到的发动机气缸内部压力和计算出的参考信号的相关系数，并根据相关系数计算发动机完成的功率。

公开(公告)号：US07506620B2

公开(公告)日：2009-03-24

申请号：US10580857

申请日：2004-12-07

申请人： Yuji Yasui

发明人： Yuji Yasui

IPC分类号： F02B75/04 ,  F01L1/34

CPC分类号： F02D15/02 ,  F02D13/0226 ,  Y02T10/18 ,  Y02T10/42

摘要： A control device for controlling an engine, comprising a variable lift mechanism capable of changing the lift of a valve and a variable compression ratio mechanism capable of changing a compression ratio in a combustion chamber. The control devise controls the variable lift mechanisms and the variable compression ratio mechanism so that, when a requested engine output is increased, a compression ratio decreasing rate is increased over a lift increasing rate and, when the requested engine output is reduced, a lift decreasing rate is increased over a compression ratio increasing rate. When the engine comprises a variable phase mechanism capable of changing the phase of the valve, the control devise controls the variable compression ratio mechanism and the variable phase mechanism so that, when the requested engine output is increased, the compression ratio decreasing rate is increased over the change rate of the phase to a delay angle and, when the requested engine output is reduced, the change rate of the phase to an advance angle is increased over the compression ratio increasing rate. Thus, the contact of the valve with a piston can be avoided.

摘要翻译： 一种用于控制发动机的控制装置，包括能够改变阀的升程的可变升程机构和能够改变燃烧室中的压缩比的可变压缩比机构。 控制装置控制可变提升机构和可变压缩比机构，使得当所要求的发动机输出增加时，压缩比减小率随着升程增加率而增加，并且当所要求的发动机输出减小时，升力降低 速率比压缩比增加率增加。 当发动机包括能够改变阀的相位的可变相位机构时，控制装置控制可变压缩比机构和可变相位机构，使得当所要求的发动机输出增加时，压缩比减小率增加超过 相位延迟角度的变化率，当所要求的发动机输出减小时，相位提前角的变化率比压缩比增加率增加。 因此，可以避免阀与活塞的接触。

公开(公告)号：US20080306673A1

公开(公告)日：2008-12-11

申请号：US12134670

申请日：2008-06-06

申请人： Yuji Yasui ,  Ikue Kawasumi

发明人： Yuji Yasui ,  Ikue Kawasumi

IPC分类号： F01N11/00 ,  F01N3/08 ,  F01N3/18

CPC分类号： F01N3/208 ,  F01N9/00 ,  F01N9/005 ,  F01N11/00 ,  F01N2550/02 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/0404 ,  F01N2900/0408 ,  F01N2900/0411 ,  F01N2900/0412 ,  F01N2900/1402 ,  F01N2900/1602 ,  F01N2900/1621 ,  F01N2900/1814 ,  Y02T10/24 ,  Y02T10/47

摘要： An exhaust emission control device for an internal combustion engine, capable of supplying a just enough amount of reducing agent to a selective reduction catalyst even when a NOx purification ratio of the catalyst is changed by various causes, thereby enabling a high NOx purification ratio and very low exhaust emissions to be maintained. An ECU calculates a filtered value based on a signal from an exhaust gas concentration sensor, calculates a moving average value of a product of the filtered value and a reference input, calculates a control input such that the moving average value becomes equal to 0, and adds a reference input to the control input to calculate an FB injection amount. The ECU calculates an FF injection amount with a predetermined feedforward control algorithm, and adds the FF injection amount to the FB injection amount, to thereby calculate a urea injection amount.

摘要翻译： 即使在各种原因使催化剂的NOx净化率发生变化的情况下，能够向选择还原型催化剂供给足够量的还原剂的废气排放控制装置，能够实现高NOx净化率 低废气排放要维持。 ECU根据来自排气浓度传感器的信号计算滤波值，计算滤波值与参考输入的乘积的移动平均值，计算移动平均值为0的控制输入，以及 向控制输入添加参考输入以计算FB喷射量。 ECU使用预定的前馈控制算法计算FF喷射量，并将FF喷射量与FB喷射量相加，从而计算尿素喷射量。

公开(公告)号：US20080294323A1

公开(公告)日：2008-11-27

申请号：US11663811

申请日：2005-09-28

申请人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichi Ikoma

发明人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichi Ikoma

IPC分类号： F02D45/00 ,  F02D15/02

CPC分类号： F02D15/02 ,  F02D35/023 ,  F02D2041/288 ,  F02D2200/1004 ,  F02D2250/12 ,  G01L5/0095 ,  G01L23/225

摘要： A device and method for calculating the work load of an engine more efficiently and accurately. The device for calculating the work load of an engine comprises a means for determining a desired frequency component to calculate the work load of the engine obtained through frequency decomposition of the volume variation rate of the engine. The device further comprises a first calculating means for calculating a first correlation coefficient between the volume variation rate and a reference signal composed of a frequency corresponding to the determined component, and a second calculating means for calculating a second correlation coefficient between the cylinder inner pressure of the engine and a reference signal composed of a frequency corresponding to the determined component. The work load of the engine is calculated using the first and second correlation coefficients.

摘要翻译： 一种用于更有效和准确地计算发动机的工作负荷的装置和方法。 用于计算发动机的工作负荷的装置包括用于确定期望频率分量以计算通过对发动机的体积变化率进行频率分解获得的发动机的工作负荷的装置。 该装置还包括：第一计算装置，用于计算体积变化率与由所确定的分量相对应的频率组成的参考信号之间的第一相关系数;以及第二计算装置，用于计算第二相关系数， 发动机和由对应于确定的部件的频率组成的参考信号。 使用第一和第二相关系数来计算发动机的工作负荷。

公开(公告)号：US20080059031A1

公开(公告)日：2008-03-06

申请号：US11662500

申请日：2005-09-09

申请人： Yuji Yasui

发明人： Yuji Yasui

IPC分类号： F02D41/12 ,  F02D13/02 ,  F02D15/02 ,  F02D43/00 ,  F02D29/00

CPC分类号： F02D41/0005 ,  F01L1/185 ,  F01L1/20 ,  F01L1/352 ,  F01L13/0021 ,  F01L2001/0537 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2820/032 ,  F01L2820/041 ,  F02B75/048 ,  F02D13/0211 ,  F02D13/0276 ,  F02D15/04 ,  F02D41/0225 ,  F02D2041/001 ,  Y02T10/18 ,  Y02T10/42

摘要： There is provided a control system for a vehicle, which is capable of obtaining an appropriate engine braking force, to thereby prolong the service life of a foot brake. In the vehicle V equipped with a transmission 90, the control system 1 for controlling at least one of a valve lift Liftin, a cam phase Cain, and a compression ratio Cr of an internal combustion engine 3 sets in advance the at least one of the valve lift Liftin, the cam phase Cain, and the compression ratio Cr to values different from each other in association with the respective transmission ratios (FIGS. 27, 28, and 29), detects the transmission ratio of the transmission 90 (step 20, FIG. 21), determines whether or not a demand for deceleration has occurred (steps 31 to 35, FIG. 23), and when it is determined that the demand for deceleration has occurred, determines the at least one of the valve lift Liftin, the cam phase Cain, and the compression ratio Cr, according to the detected transmission ratio NGEAR of the transmission 90, based on the above settings (steps 26 to 28).

摘要翻译： 提供了一种用于车辆的控制系统，其能够获得适当的发动机制动力，从而延长脚踏制动器的使用寿命。 在配备有变速器90的车辆V中，用于控制内燃机3的气门升程Liftin，凸轮相位Cain和压缩比Cr中的至少一个的控制系统1预先设定至少一个 气门升程Liftin，凸轮相位Cain，压缩比Cr与各传动比（图27,28,29）相互不同的值，检测变速器90的传动比（步20， 图21）判定是否发生了对减速的要求（步骤31〜35，图23），在判断为减速的要求的情况下，判定气门升程Liftin， 基于上述设置（步骤26至28），根据检测到的变速器90的传动比NGEAR，凸轮相位Cain和压缩比Cr。

公开(公告)号：US07318018B2

公开(公告)日：2008-01-08

申请号：US11700123

申请日：2007-01-31

申请人： Yuji Yasui ,  Mitsunobu Saito ,  Tadaharu Shoji ,  Akiyuki Yonekawa

发明人： Yuji Yasui ,  Mitsunobu Saito ,  Tadaharu Shoji ,  Akiyuki Yonekawa

IPC分类号： B60T7/12 ,  F02B75/02

CPC分类号： F01L13/0021 ,  F02D41/0002 ,  F02D41/1401 ,  F02D41/1403 ,  F02D41/2416 ,  F02D41/2422 ,  F02D2041/001 ,  F02D2041/1416 ,  F02D2041/1423 ,  G05B5/01 ,  Y02T10/42

摘要： A control system which is capable of compensating for and suppressing the influence of a periodic disturbance on a controlled object more quickly, even when the controlled object is subjected to the periodic disturbance the amplitude of which periodically changes, thereby enhancing the stability and the accuracy of control. The control system includes an ECU. The ECU calculates disturbance compensation values for compensating for a periodic disturbance by searching maps and tables, in timing of generation of each pulse of a CRK signal. The ECU calculates control inputs at a predetermined control period, with predetermined control algorithms, according to the disturbance compensation values read in at the control period, respectively.

摘要翻译： 即使控制对象受到振幅周期性变化的周期性干扰，能够更快地补偿和抑制周期性干扰对受控对象的影响的控制系统，从而提高稳定性和准确性 控制。 控制系统包括ECU。 在产生CRK信号的每个脉冲的定时中，ECU通过搜索地图和表来计算用于补偿周期性干扰的干扰补偿值。 ECU根据在控制周期读入的干扰补偿值，利用预定的控制算法在预定的控制周期内计算控制输入。

公开(公告)号：US07314028B2

公开(公告)日：2008-01-01

申请号：US11446296

申请日：2006-06-05

申请人： Yuji Yasui ,  Hiroshi Tagami

发明人： Yuji Yasui ,  Hiroshi Tagami

IPC分类号： F01L1/34

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US07299680B2

公开(公告)日：2007-11-27

申请号：US11268729

申请日：2005-11-08

申请人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki ,  Kosuke Higashitani

发明人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki ,  Kosuke Higashitani

IPC分类号： G01L23/22 ,  F02P5/00 ,  G06F19/00

CPC分类号： G01L23/225

摘要： An in-cylinder pressure sensor for outputting a signal corresponding to an internal cylinder pressure of an engine is provided. A first signal and a second signal are extracted from the output signal of the in-cylinder pressure sensor. The first signal has a frequency band corresponding to knocking of the engine. The second signal has a frequency band used for detecting a peak of the internal cylinder pressure. A knocking detection period is set based on the second signal. The first signal in the knocking detection period is examined to determine whether or not knocking has occurred.

摘要翻译： 提供了用于输出与发动机的内部气缸压力相对应的信号的缸内压力传感器。 从缸内压力传感器的输出信号中提取第一信号和第二信号。 第一信号具有对应于发动机爆震的频带。 第二信号具有用于检测内部气缸压力的峰值的频带。 基于第二信号设定爆震检测期间。 检查爆震检测期间的第一信号以确定是否发生了敲击。