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1. 发明专利

JP2008202442A Deterioration determination device for exhaust emission control system 有权
标题翻译：用于排气控制系统的检测装置
公开(公告)号：JP2008202442A
公开(公告)日：2008-09-04
申请号：JP2007037300
申请日：2007-02-19
申请人： Denso Corp , 株式会社デンソー
发明人： TAKAHASHI YURI , KIMURA MASAHIKO
IPC分类号： F01N3/20 , B01D53/86 , B01D53/94 , F02D41/04 , F02D41/14 , F02D43/00 , F02D45/00
CPC分类号： F02D41/1456 , F01N3/101 , F01N11/007 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F02D41/025 , F02D41/1441 , F02D41/1474 , F02D41/1495 , F02D41/22 , F02D41/2454 , Y02T10/22 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To determine deterioration of an emission control capacity as a whole of an exhaust emission control system having sensors detecting air fuel ratio or rich/lean of exhaust gas in an upstream side and a downstream side of a catalyst for exhaust emission control.
SOLUTION: Predetermined combustion disturbance is inputted and an output of a downstream side oxygen sensor 24 is measured under a condition where main feedback control based on output of an upstream side air fuel ratio sensor 23 and sub feedback control based on the output of the downstream side oxygen sensor 24 are executed. Characteristic values of the outputted waveform (such as response time, convergence time, peak value, integration value, area, locus length) are extracted. Deterioration of the emission control capacity as a whole of the exhaust emission control system including the upstream side and the downstream side sensors 23, 24 and a catalyst 22, is determined based on the characteristic value.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了确定具有传感器的排气控制系统的排放控制能力的劣化，该传感器检测在催化剂的上游侧和下游侧检测空气燃料比或废气浓度/贫废气排放控制。
解决方案：输入预定的燃烧扰动，并且在基于上游侧空燃比传感器23的输出的主反馈控制和基于输出的副反馈控制的条件下测量下游侧氧传感器24的输出下游侧氧传感器24被执行。提取输出波形的特征值（如响应时间，收敛时间，峰值，积分值，面积，轨迹长度）。基于特征值来确定包括上游侧和下游侧传感器23,24以及催化剂22的废气排放控制系统整体的排放控制能力的劣化。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2003301766A Torque control device of internal combustion engine 审中-公开
标题翻译：内燃机扭矩控制装置
公开(公告)号：JP2003301766A
公开(公告)日：2003-10-24
申请号：JP2002106440
申请日：2002-04-09
申请人： Denso Corp , 株式会社デンソー
发明人： KOBAYASHI NORIYUKI , TAKAHASHI YURI
IPC分类号： F02P5/155 , F02B31/00 , F02D41/04 , F02D43/00 , F02D45/00
CPC分类号： Y02T10/146
摘要： PROBLEM TO BE SOLVED: To provide a torque control device for an internal combustion engine which enhances the torque controllability for the output torque without increasing the number of maps when the output torque of the engine according to the request of the driver is to be determined.
SOLUTION: For correcting the request shaft torque requested by the drive shaft of the internal-combustion engine, a correcting process 14 for the ignition timing efficiency is executed to determine the torque efficiency η for the ignition delay angle Retard from a fundamental curvature formula which uses as parameter the ignition timing as the first parameter. At this time, the factor of the fundamental curvature formula is set on the basis of a two-dimensional map which uses as parameters the A/F and the degree of swirl opening as the second control parameters to be influenced by each other being different from the ignition timing as the first parameter, and the curvature of the fundamental curvature formula is corrected. Because the engine is controlled on the basis of the efficiency correction torque corrected by a simple constitution as described above, the torque controllability is enhanced.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于内燃机的转矩控制装置，其在根据驾驶员的要求将发动机的输出转矩为确定。解决方案：为了校正内燃机的驱动轴要求的请求轴扭矩，执行点火正时效率的校正处理14，以确定点火延迟角度的转矩效率η从基本曲率作为参数的公式，点火正时作为第一个参数。此时，基本曲率公式的因子是基于作为参数的二维图来设定的，作为第二控制参数彼此不同的A / F和旋转开度的程度不同作为第一参数的点火正时和基本曲率公式的曲率被校正。由于根据如上所述的简单结构校正的效率校正扭矩来控制发动机，所以转矩可控性提高。版权所有（C）2004，JPO

3. 发明专利

JP2009085160A Device for control of exhaust emission control system 审中-公开
标题翻译：排气控制系统控制装置
公开(公告)号：JP2009085160A
公开(公告)日：2009-04-23
申请号：JP2007258309
申请日：2007-10-02
申请人： Denso Corp , 株式会社デンソー
发明人： TAKAHASHI YURI , KIMURA MASAHIKO
IPC分类号： F02D41/14 , B01D53/94 , F01N3/08 , F01N3/36 , F02D41/04 , F02D45/00
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To allow setting a proper control constant according to a deterioration degree of emission control capacity as an entire system in the exhaust emission control system in which sensors for detecting an air-fuel ratio or rich/lean of exhaust gas are respectively installed upstream and downstream an exhaust emission control catalyst. SOLUTION: In a state of performing main feedback control based on output of the upstream air-fuel ration sensor 23 and sub-feedback control based on output of the downstream oxygen sensor 24, predetermined fuel disturbance is input, the output of the downstream oxygen sensor 24 is measured, feature values (for instance response time, convergence time, integrated value and the like) of its output waveform are extracted, the deterioration degree of emission control capacity as the entire exhaust emission control system including the catalyst 22 and the upstream and downstream sensors 23, 24 is determined based on the feature values, and the control constant (for instance a control gain or the like) of the sub-feedback control is varied according to the deterioration degree of the exhaust emission control system. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了在废气排放控制系统中根据作为整个系统的排放控制能力的劣化程度来设定适当的控制常数，其中用于检测空燃比或浓/稀废气的传感器气体分别安装在废气排放控制催化剂的上游和下游。解决方案：在基于上游空燃比传感器23的输出执行主反馈控制的状态下，基于下游氧传感器24的输出进行副反馈控制，输入预定的燃料扰动，测量下游氧传感器24，提取其输出波形的特征值（例如响应时间，收敛时间，积分值等），作为包括催化剂22的排气排放控制系统整体的排放控制能力的劣化程度，基于特征值确定上游传感器23和下游传感器24，并且根据废气排放控制系统的劣化程度来改变副反馈控制的控制常数（例如控制增益等）。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2006266094A Air-fuel ratio control device 有权
标题翻译：空燃比比控制装置
公开(公告)号：JP2006266094A
公开(公告)日：2006-10-05
申请号：JP2005081461
申请日：2005-03-22
申请人： Denso Corp , 株式会社デンソー
发明人： TAKAHASHI YURI , IIDA HISASHI
IPC分类号： F02D41/14 , F02D29/02 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To set optimum control constants for the overall response characteristics (dead time and n-th delay) of an air-fuel ratio sensor. SOLUTION: The variation timing of a fuel supply amount to an internal combustion engine is detected and the behaviors of outputs from the air-fuel ratio sensor before and after a variation in the fuel supply amount are monitored to detect the response characteristics of the air-fuel ratio sensor in two groups, i.e., the dead time between a time point when the fuel supply amount is varied and a time point when the output from the air-fuel ratio sensor is started to vary and the n-th delay characteristics (n is a positive integer) indicating sensor output variation characteristics after the dead time is passed. When the detected response characteristics are deviated from the response characteristics mounted on an ECU (hereafter, referred to as "the mounted response characteristics"), the mounted response characteristics are corrected and the control constants at which the outputs from the air-fuel ratio sensor become optimum behaviors are calculated by the mounted response characteristics after the correction. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了设定空燃比传感器的总体响应特性（死区时间和第n延迟）的最佳控制常数。解决方案：检测到对内燃机的燃料供给量的变化定时，并且监测在燃料供给量的变化之前和之后来自空燃比传感器的输出的行为，以检测燃料供给量的响应特性两组中的空燃比传感器，即燃料供给量变化的时刻与空燃比传感器的输出开始变化的时刻，第n次延迟特性（n为正整数），表示死区时间过后的传感器输出变化特性。当检测到的响应特性偏离安装在ECU上的响应特性（以下称为“安装的响应特性”）时，对安装的响应特性进行校正，并且控制常数来自空燃比传感器成为最佳行为是通过校正后的安装响应特性来计算的。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2005307961A Sensor response characteristic detecting device 有权
标题翻译：传感器响应特性检测装置
公开(公告)号：JP2005307961A
公开(公告)日：2005-11-04
申请号：JP2004345072
申请日：2004-11-30
申请人： Denso Corp , 株式会社デンソー
发明人： TAKAHASHI YURI , IIDA HISASHI , MORINAGA SHUJIRO , YOSHIUME NAOKI
IPC分类号： F02D45/00 , F02D41/14 , F02D41/22 , G06G7/70
CPC分类号： F02D41/222 , F02D41/1454 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To detect response characteristic of an air-fuel ratio sensor by dividing into waste time and n-degree delay characteristic. SOLUTION: When the output of the air-fuel ratio sensor is stable in a steady operation state, fuel supply amount is increased step by step. A point where a change gradient of a sensor output exceeds a threshold is detected as a change starting point, and time since fuel amount increase timing till the change starting point is detected as the waste time TA. Then, response time TB until the change amount of sensor output from a steady state value BA of sensor output before increasing fuel reaches a predetermined ratio of change amount (AA-BA) till a steady state AA of sensor output after increasing fuel is calculated. The presence or absence of an abnormal condition in the air-fuel ratio sensor 24 is determined on the basis of the waste time TA and the response time TB. When it is determined that correction of an air-fuel feedback controlling parameter is necessary on the basis of the waste time TA and the response time TB, the parameter is corrected. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过划分为废时间和n度延迟特性来检测空燃比传感器的响应特性。
解决方案：当空燃比传感器的输出在稳定运行状态下稳定时，燃料供给量逐步增加。检测出传感器输出的变化梯度超过阈值的点作为变化起始点，并且检测到直到变化起点的燃料量增加定时为废物时间TA的时间。然后，响应时间TB直到从增加燃料前的传感器输出的稳定状态值BA输出的传感器的输出量达到规定的变化量（AA-BA）到计算出增加燃料后的传感器输出的稳定状态AA为止。基于废时间TA和响应时间TB来确定空燃比传感器24中是否存在异常状况。当基于废弃时间TA和响应时间TB确定需要校正空燃比反馈控制参数时，校正参数。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004263680A Method and device for estimating engine misfire region, and method and device for adapting engine control parameter 审中-公开
公开(公告)号：JP2004263680A
公开(公告)日：2004-09-24
申请号：JP2003057683
申请日：2003-03-04
申请人： Denso Corp , 株式会社デンソー
发明人： TAKAHASHI YURI , MIZUNO TOSHIAKI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To estimate a misfire region in an adapting process of an engine control parameter.
SOLUTION: A relation between the engine control parameter and an ignition delay/combustion duration and a relation between the ignition delay/combustion duration and combustion stability are modeled based on measurement data of an engine characteristic to provide a misfire estimating model, and a misfire region is estimated using the misfire estimating model. When the misfire region can be thus estimated using the misfire estimating model, measuring points are arranged only in a combustible region except for the estimated misfire region, the engine characteristic is measured, and an engine characteristic model is prepared based on the measurement data. When the engine characteristic model satisfies a required accuracy, the control parameter is adapted using the engine characteristic model.
COPYRIGHT: (C)2004,JPO&NCIPI

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