公开(公告)号：US5845491A

公开(公告)日：1998-12-08

申请号：US833131

申请日：1997-04-04

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Kohei Hanada

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Kohei Hanada

IPC: F02D45/00 ,  F01N3/24 ,  F02D41/14 ,  G05B13/02

CPC classification number: G05B13/0255 ,  F02D41/1403 ,  F02D41/1441 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D2250/12 ,  F02D41/1402 ,  F02D41/1456

Abstract: An air-fuel control system for use with an internal combustion engine has a catalytic converter in an exhaust system of the engine, for purifying an exhaust gas emitted from the engine, a first exhaust gas sensor in the exhaust system for detecting an air-fuel ratio of the exhaust gas upstream of the catalytic converter, and a second exhaust gas sensor in the exhaust system for detecting the concentration of a component of the exhaust gas which has passed through the catalytic converter, downstream of the catalytic converter. A sliding mode controller determines a correction quantity at a first period to correct the air-fuel ratio of the engine so as to equalize the concentration of the component downstream of the catalytic converter to a predetermined appropriate value, according to a sliding mode control process based on the output from the second exhaust gas sensor. A feedback controller determines a correction quantity at a second period for a rate at which fuel is supplied to the engine so as to converge the concentration of the component downstream of the catalytic converter toward the predetermined appropriate value, based on the correction quantity to correct the air-fuel ratio and the output from the first exhaust gas sensor, and feedback-controls the rate at which fuel is supplied to the engine with the determined correction quantity. The first and second periods are established separately from each other.

Abstract translation: 一种与内燃机一起使用的空气燃料控制系统，在发动机的排气系统中具有催化转化器，用于净化从发动机排出的废气，用于检测空气燃料的排气系统中的第一废气传感器 催化转化器上游排气的比例和排气系统中的第二废气传感器，用于检测催化转化器下游已经通过催化转化器的废气的组分浓度。 滑动模式控制器在第一时段确定校正量，以校正发动机的空燃比，以使催化转化器下游的组分的浓度相等于预定的适当值，根据滑动模式控制过程为基础 在第二排气传感器的输出上。 反馈控制器基于校正量确定燃料被提供给发动机的速率的第二时间段的校正量，以便将催化转化器下游的组分的浓度朝向预定的适当值收敛，以校正 空燃比和第一废气传感器的输出，并且以确定的校正量反馈控制向发动机供应燃料的速率。 第一和第二个时期是彼此分开建立的。

公开(公告)号：US09657673B2

公开(公告)日：2017-05-23

申请号：US14415054

申请日：2012-07-17

Applicant: Yuji Yasui ,  Hideki Matsunaga ,  Hans Hardam ,  Toshiharu Takahashi ,  Masatoshi Yamada ,  Hiroshi Uike

Inventor： Yuji Yasui ,  Hideki Matsunaga ,  Hans Hardam ,  Toshiharu Takahashi ,  Masatoshi Yamada ,  Hiroshi Uike

IPC: F02D41/14 ,  F02D41/26 ,  F01N3/18 ,  F02D41/40 ,  F02D41/00 ,  F01N3/20 ,  F02M26/15 ,  F02D41/02 ,  F02D41/22 ,  F02M26/23

CPC classification number: F02D41/1475 ,  F01N3/18 ,  F01N3/2066 ,  F02D41/0052 ,  F02D41/0275 ,  F02D41/1402 ,  F02D41/1456 ,  F02D41/146 ,  F02D41/1477 ,  F02D41/1493 ,  F02D41/1495 ,  F02D41/263 ,  F02D41/402 ,  F02D2041/1423 ,  F02D2041/143 ,  F02D2041/1431 ,  F02D2041/228 ,  F02M26/15 ,  F02M26/23 ,  Y02T10/24 ,  Y02T10/44 ,  Y02T10/47

Abstract: The objective of the present invention is to provide an exhaust purification system that is capable of purifying exhaust gas during both lean and stoichiometric driving. The exhaust purification system is equipped with: a feedback-use identifier, which identifies parameter values such that the error between the output value from a LAF sensor and the estimated value for the LAF sensor output as obtained from a model equation is minimized; and a stoichiometric driving mode controller. The controller performs feedback control and thereby determines the fuel injection amount such that in the stoichiometric driving mode the equivalence ratio value as calculated from the parameters reaches a target value which is set such that a three-way purification reaction occurs in an under-engine catalyst. The identifier identifies the model parameters before feedback control is initiated by the controller.

公开(公告)号：US08813477B2

公开(公告)日：2014-08-26

申请号：US12917179

申请日：2010-11-01

Applicant: Yuji Yasui ,  Kazuo Yanada

Inventor： Yuji Yasui ,  Kazuo Yanada

IPC: F01N3/00 ,  F01N3/10 ,  F01N3/20

CPC classification number: F01N3/208 ,  F01N2560/021 ,  F01N2900/0411 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

Abstract: An exhaust purification system is provided that can continuously maintain a NOx purification rate to be high while suppressing the occurrence of ammonia slip. The exhaust purification system includes a slip determination portion 34 that determines the occurrence of ammonia slip based on an output value NH3CONS of an ammonia sensor 26. A reference injection amount calculating portion 31 calculates a reference injection amount GUREA—BS based on a parameter correlating to an operating state of an engine. A switching injection amount calculating portion 32 decreases in amount a urea injection amount GUREA by setting a switching injection amount GUREA—SW to a negative value in response to having determined that ammonia slip has occurred, and increases in amount the injection amount GUREA by setting the switching injection amount GUREA—SW to a positive value in response to a storage amount estimated value STUREA having fallen below a predetermined switch storage amount STUREA—SW.

Abstract translation: 提供了能够在抑制氨滑移的发生的同时，将NOx净化率连续地维持为高的排气净化系统。 排气净化系统包括：滑移判定部34，其根据氨传感器26的输出值NH3CONS确定氨的滑移发生。基准喷射量计算部31基于与氨传感器26的输出值NH3CONS相关的参数，计算基准喷射量GUREA-BS 发动机的运行状态。 切换喷射量计算部32响应于已经确定发生氨滑移而将切换喷射量GUREA-SW设定为负值，从而减少尿素喷射量GUREA的量，并且通过将喷射量GUREA设定为 响应于已经低于预定开关存储量STUREA-SW的存储量估计值STUREA，切换喷射量GUREA-SW变为正值。

公开(公告)号：US08646271B2

公开(公告)日：2014-02-11

申请号：US13115803

申请日：2011-05-25

Applicant: Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Koichi Nakajima

Inventor： Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Koichi Nakajima

IPC: F02B33/44

CPC classification number: F02D41/0072 ,  F02D41/0047 ,  F02D41/0062 ,  F02D41/1402 ,  F02D41/1405 ,  F02D41/1456 ,  F02D41/187 ,  F02D2009/0272 ,  F02D2041/1433 ,  F02D2200/0402 ,  F02M26/05 ,  F02M26/06 ,  F02M26/15 ,  F02M26/23 ,  F02M26/38 ,  Y02T10/47

Abstract: An EGR control apparatus for an internal combustion engine, which is capable of accurately controlling an inert gas amount and an inert gas ratio of two types of EGR gas supplied to cylinders of the engine via two paths different from each other, thereby making it possible to ensure a stable combustion state and reduced exhaust emissions. The EGR control apparatus includes a low-pressure EGR device, a high-pressure EGR device, and an ECU. The ECU calculates a target low-pressure opening, calculates an estimated value of an in-cylinder low-pressure inert gas flow rate, which is the estimated value of an inert gas amount included in low-pressure EGR gas supplied to the cylinders via an intake passage, calculates a target high-pressure opening using the estimated value, and controls low-pressure and high-pressure EGR control valves, using the target low-pressure opening and the target high-pressure opening.

Abstract translation: 一种用于内燃机的EGR控制装置，其能够通过彼此不同的两条路径精确地控制供给到发动机的气缸的两种EGR气体的惰性气体量和惰性气体比， 确保燃烧状态稳定，减少废气排放。 EGR控制装置包括低压EGR装置，高压EGR装置和ECU。 ECU计算目标低压开度，计算作为经由燃料供给到气缸的低压EGR气体中包含的惰性气体量的估计值的缸内低压惰性气体流量的推定值 进气通道使用该估计值计算目标高压开度，并且使用目标低压开口和目标高压开口来控制低压和高压EGR控制阀。

公开(公告)号：US20120305361A1

公开(公告)日：2012-12-06

申请号：US13473793

申请日：2012-05-17

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: G07F7/04

CPC classification number: G07F7/04

Abstract: A control unit of a change dispenser calculates the fraction amount less than unit of the par value of 5000-yen bill for the balance amount and the number of 1000-yen bill equivalent to the fraction amount, calculates each numbers of 1000-yen bill and 5000-yen bill needed to fill a balance amount obtained by subtracting the amount of 1000-yen bill based on the number calculated from the balance amount, according to 1000-yen bill and 5000-yen bill at a given ratio, determines the balance number of 1000-yen bill by adding the number of 1000-yen bill calculated to the number of 1000-yen bill calculated and determines the number of 5000-yen bill calculated as the balance number of 5000-yen bill.

Abstract translation: 更换分配器的控制单元计算小于5000日元票据的单位的余额金额和与分数量相当的1000日元票据的数量的分数，计算每个1000日元票据的数量， 根据1000日元票据和5000日元票据，按照给定的比例，根据从余额中计算出的数量减去1000日元的账单金额，填写5000日元票据，确定余额 1000日元票据，加上1000日元票据计算的1000日元票据数，计算出5000日元账单的数额，计算为5000日元。

公开(公告)号：US08229650B2

公开(公告)日：2012-07-24

申请号：US12528480

申请日：2008-04-25

Applicant: Yuji Yasui ,  Ikue Kawasumi

Inventor： Yuji Yasui ,  Ikue Kawasumi

IPC: F02D41/04 ,  F02D41/34

CPC classification number: F02D41/025 ,  F02D41/008 ,  F02D41/405 ,  F02D2200/0804 ,  Y02T10/26 ,  Y02T10/44

Abstract: An ECU controls to inject a small amount of fuel in an expansion/exhaust stroke under constraint of the minimum fuel injection capability of an injector at the time of warming-up of a catalyst. The ECU controls injection of fuel in expansion/exhaust strokes (expansion/exhaust stroke injection) at the time of warming-up of a catalyst. Fuel injection control is performed so that when temperature of the catalyst becomes higher than a predetermined temperature, fuel injection in the expansion/exhaust strokes is performed for a period of a predetermined ratio in a selected cycle period. The expansion/exhaust stroke injection is not performed in the other period. By effectively utilizing oxygen absorbed on the catalyst, while suppressing slip HC, the activation time of the catalyst can be shortened.

Abstract translation: ECU控制在催化剂预热时喷射器的最小燃料喷射能力的限制下在膨胀/排气冲程中喷射少量燃料。 ECU在催化剂预热时控制膨胀/排气冲程中的燃料喷射（膨胀/排气冲程喷射）。 执行燃料喷射控制，使得当催化剂的温度变得高于预定温度时，在所选择的循环周期内，在预定比例的时段内执行膨胀/排气冲程中的燃料喷射。 在其他时间段内不进行膨胀/排气行程喷射。 通过有效地利用吸附在催化剂上的氧气，同时抑制滑移HC，可以缩短催化剂的活化时间。

公开(公告)号：US20120117954A1

公开(公告)日：2012-05-17

申请号：US13358178

申请日：2012-01-25

Applicant: Yuji Yasui ,  Eiji Hashimoto ,  Hideki Matsunaga ,  Hisao Haga ,  Masafumi Sakota

Inventor： Yuji Yasui ,  Eiji Hashimoto ,  Hideki Matsunaga ,  Hisao Haga ,  Masafumi Sakota

IPC: F01N3/10

CPC classification number: F01N9/00 ,  F01N3/208 ,  F01N2560/026 ,  F01N2900/1402 ,  F02D41/0077 ,  F02D41/1446 ,  F02D41/146 ,  F02D41/405 ,  Y02T10/24 ,  Y02T10/44 ,  Y02T10/47

Abstract: An exhaust purification system for an internal combustion engine is provided that can maintain the NOx purification rate of a selective reduction catalyst at near the maximum thereof. The exhaust purification system is provided with an oxidation catalyst and CSF provided in the exhaust plumbing of the engine, a selective reduction catalyst that is provided in the exhaust plumbing on the downstream side of oxidation catalyst and CSF, and selectively reduces NOx in the exhaust, and a NO2 sensor that detects NO2 in the exhaust inside of the exhaust plumbing on the downstream side of the selective reduction catalyst. An ECU executes NO2-NOx ratio decrease processing to cause the NO2-NOx ratio corresponding to the ratio of NO2 to NOx in the exhaust flowing into the selective reduction catalyst to decrease, in a case of a detection value Vno2 from the NO2 sensor being greater than a predetermined value Vno2_th.

Abstract translation: 提供一种用于内燃机的排气净化系统，其能够将选择还原催化剂的NOx净化率保持在其最大值附近。 排气净化系统设置有设置在发动机的排气管道中的氧化催化剂和CSF，选择性还原催化剂，其设置在氧化催化剂和CSF的下游侧的排气管道中，并且选择性地减少排气中的NOx， 以及NO2传感器，其对选择还原催化剂的下游侧的排气管道内的排气内部的NO2进行检测。 在NO2传感器的检测值Vno2较大的情况下，ECU执行NO2-NOx比减少处理，使得与流入选择还原催化剂的排气中的NO 2与NO x的比例对应的NO 2 -NO x比例降低 超过预定值Vno2_th。

公开(公告)号：US08116967B2

公开(公告)日：2012-02-14

申请号：US12121860

申请日：2008-05-16

Applicant: Jörg Böttcher ,  Michael Fischer ,  Yuji Yasui

Inventor： Jörg Böttcher ,  Michael Fischer ,  Yuji Yasui

IPC: F02D45/00 ,  G06F17/00

CPC classification number: F02D41/1405 ,  F02D41/0072 ,  F02D41/1462 ,  F02D41/22 ,  F02D41/402 ,  F02D2041/0015 ,  F02D2041/0075 ,  F02D2200/0406 ,  F02D2200/0806 ,  Y02T10/44 ,  Y02T10/47

Abstract: A control system for an internal combustion engine is disclosed. In the control system, an engine state parameter is calculated using a self-organizing map for calculating a predetermined output parameter according to at least one engine operating parameter which indicates an operating condition of said engine. The engine state parameter indicates an engine state which is relevant to the predetermined output parameter.

Abstract translation: 公开了一种用于内燃机的控制系统。 在控制系统中，根据指示所述发动机的运行状态的至少一个发动机运转参数，使用自组织图来计算发动机状态参数，以计算预定的输出参数。 发动机状态参数指示与预定输出参数相关的发动机状态。

公开(公告)号：US20110308503A1

公开(公告)日：2011-12-22

申请号：US13116567

申请日：2011-05-26

Applicant: Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Koichi Nakajima

Inventor： Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Koichi Nakajima

IPC: F02M25/07

CPC classification number: F02D41/005 ,  F02M26/05 ,  F02M26/06 ,  F02M26/22 ,  Y02T10/47

Abstract: An EGR control apparatus for an internal combustion engine, which is capable of properly controlling an inert gas amount of two types of EGR gas supplied to cylinders of the engine via two paths different from each other, thereby making it possible to ensure a stable combustion state, reduced exhaust emissions, and improve operability. The EGR control apparatus includes low-pressure and high-pressure EGR devices, and an ECU. The ECU controls the low-pressure and high-pressure EGR gas amounts according to engine speed and demanded torque, and when a combination of engine speed and demanded torque is in a predetermined region, the low-pressure and high-pressure EGR gas amounts are controlled such that inert gas in low-pressure EGR gas exceeds in amount inert gas in high-pressure EGR gas, and the former more exceeds the latter as engine speed is higher or demanded torque is larger.

Abstract translation: 一种用于内燃机的EGR控制装置，其能够通过彼此不同的两条路径适当地控制供给到发动机的气缸的两种EGR气体的惰性气体量，从而可以确保稳定的燃烧状态 ，减少废气排放，提高可操作性。 EGR控制装置包括低压和高压EGR装置和ECU。 ECU根据发动机转速和要求转矩控制低压高压EGR气体量，当发动机转速和要求转矩的组合处于规定区域时，低压高压EGR气体量为 控制使得低压EGR气体中的惰性气体在高压EGR气体中超过惰性气体量，并且当发动机转速较高或要求转矩较大时，前者大于后者。

公开(公告)号：US08046091B2

公开(公告)日：2011-10-25

申请号：US12081897

申请日：2008-04-23

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: G05B13/02 ,  F02D11/10

CPC classification number: F02D41/1406 ,  F02D41/1403 ,  F02D41/1408

Abstract: An optimum control parameter in control of an internal combustion engine and the like is searched. In a plurality of search cycles, a control parameter that maximizes an output of an object to be controlled which shows an output realized by a given control parameter is searched using control parameters. The control parameters are provided at each search cycle by a predetermined algorithm. A periodic function of a predetermined period and a correction value obtained in a previous search cycle are added to the control parameters to obtain an input parameters to the object. An output obtained from the object with the input parameters is multiplied by the periodic function to obtain a correction value for correcting the control parameters such that the search converges.

Abstract translation: 搜索内燃机等的控制中的最佳控制参数。 在多个搜索周期中，使用控制参数来搜索使显示由给定控制参数实现的输出的待控制对象的输出最大化的控制参数。 通过预定算法在每个搜索周期提供控制参数。 将预定周期的周期函数和在先前搜索周期中获得的校正值添加到控制参数以获得对象的输入参数。 从具有输入参数的对象获得的输出乘以周期函数，以获得用于校正控制参数以使搜索收敛的校正值。