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。

公开(公告)号：US07765996B2

公开(公告)日：2010-08-03

申请号：US12292612

申请日：2008-11-21

Applicant: Yuji Yasui ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Yoshihisa Iwaki

IPC: F02D41/14

CPC classification number: G05D23/2401 ,  G01N27/4067

Abstract: A control input (DUT) for controlling a heater (13) which heats an active element (10) of an exhaust gas sensor (8) includes at least one of another component depending on the difference between temperature data of the active element (10) and a target temperature, a component depending on the target temperature, and a component depending on the temperature data of the active element (10). The control input is determined by an optimum control algorithm. A component depending on the temperature of an exhaust gas and the component depending on the target temperature are determined based on a predictive control algorithm. The temperature of the active element (10) of the exhaust gas sensor (8) is thus controlled stably at a desired temperature.

Abstract translation: 用于控制加热排气传感器（8）的有源元件（10）的加热器（13）的控制输入（DUT）包括根据有源元件（10）的温度数据之间的差异的另一个分量中的至少一个， 和目标温度，取决于目标温度的分量，以及取决于有源元件（10）的温度数据的分量。 控制输入​​由最佳控制算法确定。 根据预测控制算法确定取决于排气温度和与目标温度有关的分量的分量。 因此，排气传感器（8）的有源元件（10）的温度稳定地控制在期望的温度。

公开(公告)号：US07757545B2

公开(公告)日：2010-07-20

申请号：US11597037

申请日：2005-05-18

Applicant: Masahiro Sato ,  Katsura Okubo ,  Koichiro Shinozaki ,  Yuji Yasui ,  Keiichi Nagashima

Inventor： Masahiro Sato ,  Katsura Okubo ,  Koichiro Shinozaki ,  Yuji Yasui ,  Keiichi Nagashima

IPC: G06F19/00

CPC classification number: F02D41/222 ,  F02D35/023 ,  G01L23/225 ,  G01L27/005 ,  G01L27/007 ,  Y02T10/40

Abstract: A device and a method for determining the trouble of a cylinder pressure sensor without increasing cost calculates the cylinder pressure of an internal combustion engine based on an output from the cylinder sensor installed in the engine and calculates a drift parameter indicating the drift amount of the cylinder pressure based on the cylinder pressure. When the drift parameter is not within a specified range, the device determines that the cylinder pressure sensor is defective. The specified range can be set based on the behavior of the cylinder pressure. A correction factor is obtained according to the operating state of the engine, and the drift parameter is corrected with the correction factor. A specified search signal is superimposed on the output from the cylinder pressure sensor. The cylinder pressure is calculated based on the output from the cylinder pressure sensor on which the search signal was superimposed.

Abstract translation: 用于在不增加成本的情况下确定气缸压力传感器的故障的装置和方法基于安装在发动机中的气缸传感器的输出来计算内燃机的气缸压力，并计算指示气缸的漂移量的漂移参数 基于气缸压力的压力。 当漂移参数不在指定范围内时，设备确定气缸压力传感器有故障。 可以根据气缸压力的行为来设定指定的范围。 根据发动机的运行状态得到校正系数，校正系数校正漂移参数。 指定的搜索信号叠加在气缸压力传感器的输出上。 气缸压力基于叠加有搜索信号的气缸压力传感器的输出计算。

公开(公告)号：US20090192693A1

公开(公告)日：2009-07-30

申请号：US12121860

申请日：2008-05-16

Applicant: Jorg Bottcher ,  Michael Fischer ,  Yuji Yasui

Inventor： Jorg Bottcher ,  Michael Fischer ,  Yuji Yasui

IPC: F02D45/00

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：US07527029B2

公开(公告)日：2009-05-05

申请号：US11509091

申请日：2006-08-24

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F01L1/34

CPC classification number: F02D41/1401 ,  F02D2041/1432 ,  F02D2041/1437 ,  F02D2041/2027

Abstract: A controller for a plant that can compensate for non-linear property and reduce oscillation of output of a controlled object even when the controlled object has high non-linear property is provided. The present invention provides a controller for a plant that uses PWM algorithm. The device calculates provisional control input for controlling output of the plant at a target value, and divides the provisional control input into a plurality of components. The controller PWM-modulates at least one of the plurality of components, and sums the PWM-modulated component and other components to produce a control input to the plant. The controller minimizes variations in input while maintaining the ability of PWM modulation to compensate for non-linear property of the plant.

Abstract translation: 提供了一种用于工厂的控制器，其可以补偿非线性特性并减少受控对象的输出的振荡，即使当受控对象具有高非线性特性时。 本发明提供一种使用PWM算法的工厂的控制器。 该装置计算用于控制工厂的输出为目标值的临时控制输入，并将临时控制输入分成多个分量。 所述控制器PWM调制所述多个分量中的至少一个，并且对所述PWM调制分量和其它分量进行求和以产生对所述设备的控制输入。 控制器可以最大限度地减少输入的变化，同时保持PWM调制的能力来补偿工厂的非线性特性。

公开(公告)号：US20090077953A1

公开(公告)日：2009-03-26

申请号：US12292612

申请日：2008-11-21

Applicant: Yuji Yasui ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Yoshihisa Iwaki

IPC: F01N11/00

CPC classification number: G05D23/2401 ,  G01N27/4067

Abstract: A control input (DUT) for controlling a heater (13) which heats an active element (10) of an exhaust gas sensor (8) includes at least one of another component depending on the difference between temperature data of the active element (10) and a target temperature, a component depending on the target temperature, and a component depending on the temperature data of the active element (10). The control input is determined by an optimum control algorithm. A component depending on the temperature of an exhaust gas and the component depending on the target temperature are determined based on a predictive control algorithm. The temperature of the active element (10) of the exhaust gas sensor (8) is thus controlled stably at a desired temperature.

Abstract translation: 用于控制加热排气传感器（8）的有源元件（10）的加热器（13）的控制输入（DUT）包括根据有源元件（10）的温度数据之间的差异的另一个分量中的至少一个， 和目标温度，取决于目标温度的分量，以及取决于有源元件（10）的温度数据的分量。 控制输入​​由最佳控制算法确定。 根据预测控制算法确定取决于排气温度和与目标温度有关的分量的分量。 因此，排气传感器（8）的有源元件（10）的温度稳定地控制在期望的温度。