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1. 发明专利

JP2011027042A Egr flow rate control apparatus of internal combustion engine 有权
标题翻译：内燃机的EGR流量控制装置
公开(公告)号：JP2011027042A
公开(公告)日：2011-02-10
申请号：JP2009174693
申请日：2009-07-27
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： ICHIHARA TAKANOBU , KANETOSHI KAZUHIKO , KATOGI KOZO , HOSHIKA HIROAKI
IPC分类号： F02M25/07
CPC分类号： F02D41/0072 , F02D41/28 , F02D2041/0075 , F02D2041/141 , F02D2041/1432 , F02M26/05 , F02M26/40 , F02M26/47 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an EGR flow rate control apparatus of an internal combustion engine that can accurately correct an EGR gas flow rate measured by a gas flow rate measurement apparatus in an EGR passage and can accurately control a gas flow rate regulating valve to reduce discharge amounts of PM and NOx in exhaust gas. SOLUTION: An EGR flow rate control apparatus 10 of an internal combustion engine includes: EGR flow channels 26, 20 that make an exhaust pipe 11 communicate with an intake pipe 7; gas flow rate regulating valves 17 installed in the EGR flow channels 16, 20 to regulate EGR gas flow rates; and a gas flow rate measurement apparatus 18 that is installed at an intake pipe 7 side with respect to the flow rate regulating valves 17 of the EGR flow channels 16, 20 and measures EGR gas flow rates flowing through the EGR flow channels 16, 20. The EGR flow rate control apparatus 10 includes a gas flow rate correction means 45 that corrects the EGR gas flow rate based on a first operating state parameter related to the pressure fluctuation of an intake pipe or an exhaust pipe of the internal combustion engine and a second operating state parameter related to the flow channel resistance of the EGR flow channels. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够精确地校正由EGR通路中的气体流量测量装置测量的EGR气体流量的内燃机的EGR流量控制装置，能够精确地控制气体流量调节阀，以减少废气中PM和NOx的排放量。解决方案：内燃机的EGR流量控制装置10包括：排气管11与进气管7连通的EGR流路26,20; 安装在EGR流路16,20中的气体流量调节阀17，以调节EGR气体流量; 以及气体流量测量装置18，其被设置在相对于EGR流路16,20的流量调节阀17的进气管7侧，并测量流过EGR流路16,20的EGR气体流量。 EGR流量控制装置10包括气体流量校正装置45，其根据与内燃机的进气管或排气管的压力波动相关的第一运转状态参数来校正EGR气体流量，与EGR流量通道的流路阻力相关的运行状态参数。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010169039A Egr flow rate measuring device for internal combustion engine 审中-公开
标题翻译：用于内燃机的EGR流量测量装置
公开(公告)号：JP2010169039A
公开(公告)日：2010-08-05
申请号：JP2009013438
申请日：2009-01-23
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： KATOGI KOZO , KANETOSHI KAZUHIKO , ICHIHARA TAKANOBU
IPC分类号： F02M25/07
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To correctly measure the actual flow rate of exhaust gas flowing in an EGR flow passage regardless of a variation in exhaust gas pressure and a variation in intake manifold internal pressure. SOLUTION: This EGR flow rate measuring device for an internal combustion engine includes: a gas flow rate calculation section 101 calculating a flow rate of gas flowing in the EGR flow passage based on the output signal of a flow rate sensor 18 installed in the EGR flow passage of the internal combustion engine; a pulsation frequency calculation section 102 calculating a pulsation frequency generated in a gas flow in the EGR flow passage or a value representing it based on engine speed; and a gas flow rate correction section 103 correcting the gas flow rate calculated by the gas flow rate calculation section 101 by a correction value correlating with the pulsation frequency calculated by the pulsation frequency calculation section 102. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：无论废气压力的变化和进气歧管内部压力的变化如何，都能正确地测量在EGR流路中流动的废气的实际流量。解决方案：用于内燃机的EGR流量测量装置包括：气体流量计算部101，其基于安装在内燃机中的流量传感器18的输出信号计算在EGR流路中流动的气体的流量内燃机的EGR流路; 脉动频率计算部分102，计算在EGR流路中的气流中产生的脉动频率或基于发动机转速表示的脉动频率; 以及气体流量校正部103，其通过与由脉动频率计算部102计算的脉动频率相关联的校正值来校正由气体流量计算部101计算的气体流量。（C） JPO＆INPIT

3. 发明专利

JP2010116878A Failure diagnostic system of exhaust emission control device of internal combustion engine 审中-公开
标题翻译：内燃机排气控制装置故障诊断系统
公开(公告)号：JP2010116878A
公开(公告)日：2010-05-27
申请号：JP2008291623
申请日：2008-11-14
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： KANETOSHI KAZUHIKO , KATOGI KOZO , ICHIHARA TAKANOBU
IPC分类号： F01N3/18 , F01N3/20
摘要： PROBLEM TO BE SOLVED: To estimate a leakage quantity of a switching valve for opening-closing a main passage from pulsation of sensor output, by installing an exhaust flow rate sensor in a confluent part of a passage of bypassing a catalyst of an exhaust pipe and a catalyst bypass passage having the switching valve for switching the bypass passage, in this invention, for providing a diagnostic system for diagnosing leakage of a passage switching valve, since exhaust emission control performance is deteriorated, when uncontrolled exhaust emission flows out to an external part as it is in an inactive stage of a main catalyst, when passage switching by the passage switching valve is insufficient, for example, when the exhaust gas leaks though the passage switching valve for opening-closing the main passage exists in a closing position.
SOLUTION: The leakage of the switching valve for opening-closing the main passage is diagnosed from pulsation of an exhaust flow rate sensor signal by installing the exhaust flow rate sensor in the confluence part of the bypass passage.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了估计用于从传感器输出的脉动开闭主通道的切换阀的泄漏量，通过在排气流量传感器的旁路的通路的汇合部分安装排气流量传感器排气管和具有用于切换旁通通道的切换阀的催化剂旁通通路，在本发明中，为了提供用于诊断通道切换阀的泄漏的诊断系统，由于废气排放控制性能劣化，当不受控制的废气排放到外部部分原样处于主催化剂的不活动阶段，当通道切换阀的通道切换不足时，例如当排气通过用于打开主通道的开闭阀的通道切换阀泄漏时，存在闭合位置。解决方案：通过在排气流量传感器信号的汇合部分安装排气流量传感器，可以从排气流量传感器信号的脉动来诊断用于打开主通道的开关阀的泄漏。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2012189084A Controller of engine 有权
标题翻译：发动机控制器
公开(公告)号：JP2012189084A
公开(公告)日：2012-10-04
申请号：JP2012128290
申请日：2012-06-05
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： NAKAGAWA SHINJI , KANETOSHI KAZUHIKO , KATOGI KOZO , ICHIHARA TAKANOBU , OSUGA MINORU
IPC分类号： F02D41/14 , F02D9/02 , F02D11/10 , F02D41/04 , F02D45/00 , F02P5/15
摘要： PROBLEM TO BE SOLVED: To perform compensation suitably in response to each of an error in a fuel system and an error in an air system to correct both an air fuel ratio variation and a torque variation.SOLUTION: When a difference between a target air fuel ratio and an actual air fuel ratio is a given value or less while feedback control based on an air fuel ratio of an exhaust pipe collection part 10A is implemented, the air fuel ratio of a cylinder cyl_1 in which a variation of angular acceleration is the greatest is corrected to the rich side by an increased amount of fuel, for example. Thereafter, angular acceleration of each cylinder is newly detected, and when the variation of angular acceleration between the cylinders is not solved, it is determined that there is an error in an amount of air control of the cylinder in which the variation is the greatest to correct an amount of air, an amount of fuel, ignition timing, and the like of the cylinder.
摘要翻译：要解决的问题：为了响应于燃料系统中的每个误差和空气系统中的误差而适当地执行补偿以校正空燃比变化和扭矩变化。解决方案：当实现基于排气管收集部10A的空燃比的反馈控制时，当目标空燃比与实际空燃比之间的差为规定值以下时，空燃比其中角加速度变化最大的气缸cyl_1例如通过增加燃料量向富侧校正。此后，重新检测每个气缸的角加速度，并且当气缸之间的角加速度的变化没有得到解决时，确定在变化最大的气缸的空气控制量中存在误差校正气缸的空气量，燃料量，点火正时等。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2011027018A Engine control device 审中-公开
标题翻译：发动机控制装置
公开(公告)号：JP2011027018A
公开(公告)日：2011-02-10
申请号：JP2009172839
申请日：2009-07-24
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： KATOGI KOZO , HOSHIKA HIROAKI , ICHIHARA TAKANOBU , KANETOSHI KAZUHIKO , ASANO SEIJI
IPC分类号： F02D41/06 , F01N3/20 , F02D13/02 , F02D45/00 , F02P5/15
摘要： PROBLEM TO BE SOLVED: To provide an engine control device capable of achieving the early activation of a catalyst by immediately raising an exhaust gas temperature while maintaining combustion stability in an allowable range after engine starting.
SOLUTION: Combustion control for starting an engine in a cold state is performed so that the exhaust gas temperature and/or a catalyst temperature is detected and estimated, the exhaust gas temperature and/or the target temperature of the catalyst is set based on the operating state of the engine, and a control parameter (ignition timing, the amount of fuel injected, exhaust valve opening timing) related to the combustion state of the engine is changed based on the present temperature and the target temperature detected and estimated by a temperature detection means. When the combustion stability is within an allowable range, the control parameter is changed in a direction to raise the exhaust gas temperature. When the combustion stability is outside the allowable range, the control parameter is changed in a direction to improve the combustion stability.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种发动机控制装置，其能够通过立即提高排气温度来实现催化剂的早期活化，同时在发动机起动之后将燃烧稳定性保持在允许范围内。解决方案：执行用于启动处于冷态的发动机的燃烧控制，以便检测和估计废气温度和/或催化剂温度，基于催化剂的排气温度和/或目标温度设定在与发动机的燃烧状态有关的控制参数（点火正时，燃料喷射量，排气门打开正时）的变化基于目前的温度和由温度检测装置。当燃烧稳定性在容许范围内时，控制参数在排气温度升高的方向上变化。当燃烧稳定性在允许范围之外时，控制参数在改善燃烧稳定性的方向上改变。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2011157942A Egr control device of internal combustion engine 有权
标题翻译：内燃机EGR控制装置
公开(公告)号：JP2011157942A
公开(公告)日：2011-08-18
申请号：JP2010022650
申请日：2010-02-04
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： ICHIHARA TAKANOBU , KANETOSHI KAZUHIKO , MATSUMURA TAKASHI
IPC分类号： F02M25/07 , F02D45/00
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To estimate an EGR amount accurately with high responsiveness and reduce exhaust amounts of NOx and PM.
SOLUTION: A gas flow amount calculating means is provided for calculating a flow amount of mixed gas passing through a flow amount adjusting valve provided within an intake pipe at downstream of a merge section of the intake pipe and an EGR passage, based on a difference between pressures at positions upstream and downstream of the flow amount adjusting valve, an opening area of the flow amount adjusting valve, and a temperature of intake air. A means for controlling an opening of an EGR valve according to a flow amount of EGR gas that is calculated based on a difference between the flow amount of the mixed gas and an intake air amount is also provided.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：以高响应性准确地估计EGR量并且减少NOx和PM的排放量。解决方案：提供一种气体流量计算装置，用于计算在进气管和EGR通道的合流部分的下游处设置在进气管内的流量调节阀的混合气体的流量，基于流量调节阀的上游和下游位置处的压力差，流量调节阀的开口面积和进气温度。还提供了一种用于根据混合气体的流量与进气量之差计算的EGR气体的流量来控制EGR阀的开度的装置。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2011047319A Diagnostic device for egr system 有权
标题翻译：用于EGR系统的诊断装置
公开(公告)号：JP2011047319A
公开(公告)日：2011-03-10
申请号：JP2009195982
申请日：2009-08-26
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： KATOGI KOZO , HOSHIKA HIROAKI , TOKUYASU NOBORU , KOKUBU HISANORI , TERADA DAISUKE , UENODAN AKIRA , ICHIHARA TAKANOBU , KANETOSHI KAZUHIKO
IPC分类号： F02M25/07
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To provide a diagnostic device for an EGR system, specifying the portion of an EGR system and specifying the condition of the portion, even if there is a temporal change caused by adhesion of PM (soot). SOLUTION: This diagnostic device for the EGR system includes: an EGR flow passage allowing an exhaust pipe to communicate with an intake pipe; a flow rate measurement device attached to the EGR flow passage and measuring an EGR gas flow rate; an EGR temperature measurement device attached to the inside or the vicinity of the flow rate measurement device and measuring the temperature of the EGR gas; and an EGR gas flow rate control valve controlling the EGR gas flow rate. The diagnostic device includes: a profile measurement means measuring the temperature profile of the EGR gas temperature changed according to a change in the valve opening of the EGR gas flow rate control valve and the flow rate profile of the EGR gas flow rate; and a diagnostic means specifying the portion of the EGR system, and diagnosing the condition of each position, based on the temperature profile and flow rate profile. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使存在由PM（烟灰）的粘附引起的时间变化，提供用于EGR系统的诊断装置，指定EGR系统的部分并指定该部分的状态。解决方案：用于EGR系统的诊断装置包括：EGR流路，其允许排气管与进气管连通; 流量测量装置，其附接到所述EGR流路并测量EGR气体流量; EGR流量测量装置，其安装在流量测量装置的内部或附近并测量EGR气体的温度; 以及控制EGR气体流量的EGR气体流量控制阀。诊断装置包括：轮廓测量装置，其测量根据EGR气体流量控制阀的阀开度的变化和EGR气体流量的流量分布而改变的EGR气体温度的温度分布; 以及诊断装置，其指定EGR系统的一部分，并且基于温度曲线和流量曲线来诊断每个位置的状况。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2011027059A Engine cotrol apparatus 审中-公开
标题翻译：发动机套装
公开(公告)号：JP2011027059A
公开(公告)日：2011-02-10
申请号：JP2009175217
申请日：2009-07-28
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： NAKAGAWA SHINJI , KANETOSHI KAZUHIKO , KATOGI KOZO , ICHIHARA TAKANOBU , OSUGA MINORU
IPC分类号： F02D41/36 , F02D45/00 , F02P5/15
CPC分类号： F02D41/0085 , F02D37/02 , F02D41/1454 , F02D41/1497 , F02D2200/1012
摘要： PROBLEM TO BE SOLVED: To correct both the variation in an air-fuel ratio and the torque fluctuation by appropriately performing correction corresponding to an error in a fuel system and an error in an air system. SOLUTION: When a difference between a target air-fuel ratio and the actual air-fuel ratio is less than or equal to a predetermined value during performance of feedback control based on the air-fuel ratio of an exhaust pipe joining portion 10A, for example, the air-fuel ratio of a cylinder cyl_1 having a largest variation in angular acceleration is corrected to a rich side by increasing the amount of fuel. After that, the angular acceleration with respect to each cylinder is detected once again. When the variation in the angular acceleration between the cylinders is not canceled, it is determined that there is an error in the air controlled variable of the cylinder having largest variation. Then, the air volume, fuel quantity, ignition timing and the like of the cylinder are corrected. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过适当地执行对应于燃料系统中的误差和空气系统中的误差来校正空燃比和扭矩波动的变化。解决方案：当基于排气管接合部分10A的空燃比执行反馈控制期间当目标空燃比与实际空燃比之间的差小于或等于预定值时例如，通过增加燃料量将具有最大角加速度变化的气缸cyl_1的空燃比校正为浓侧。此后，再次检测相对于每个气缸的角加速度。当气缸之间的角加速度的变化没有被消除时，确定在具有最大变化的气缸的空气控制变量中存在误差。然后，校正气缸的风量，燃料量，点火正时等。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2011106925A Gas flow measuring instrument of internal combustion engine 有权
标题翻译：内燃机气体流量测量仪
公开(公告)号：JP2011106925A
公开(公告)日：2011-06-02
申请号：JP2009261163
申请日：2009-11-16
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： ICHIHARA TAKANOBU , KANETOSHI KAZUHIKO , HOSHIKA HIROAKI , TERADA DAISUKE
IPC分类号： G01F1/68 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To obtain a gas flow measuring instrument of internal combustion engine, capable of improving the precision of gas flow measurements, without being affected by variation of the flow measuring value by turbulent flow and noise, and which is capable of improving the exhaust gas performance and fuel efficiency performance.
SOLUTION: The gas flow measuring instrument of the internal combustion engine equipped with a gas flow sensor 13 for detecting the gas flow rate, based on the amount of the heat discharge of a heat generating resistive element 30 calculates a flow rate differential value DQ, by differentiating the flow rate detection value detected by the gas flow sensor 13, and calculates a flow rate correction value Qec, which is obtained by correcting the flow rate detection value with a correction amount, according to the flow rate differential value DQ. Hence, the effect of the temporary flow rate variation due to turbulent flow and noise can be reduced; and even when the flow rate detection value Qes varies, a proper correction corresponding to the back flow amount can be performed, and precision of the flow measurement is improved.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了获得能够提高气体流量测量的精度的内燃机的气体流量测量仪器，不受流动测量值由湍流和噪声的变化的影响，并且能够提高废气性能和燃油效率性能。解决方案：配备有用于根据发热电阻元件30的放热量检测气体流量的气体流量传感器13的内燃机的气体流量测量仪计算流量差分值 DQ，通过对由气体流量传感器13检测出的流量检测值进行微分，并根据流量差分值DQ计算通过校正量校正流量检测值而得到的流量校正值Qec。因此，可以减少由于湍流和噪声引起的临时流量变化的影响; 并且即使当流量检测值Qes变化时，也可以进行与回流量对应的适当的校正，并且提高流量测量的精度。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2011094541A Control device for engine 有权
标题翻译：发动机控制装置
公开(公告)号：JP2011094541A
公开(公告)日：2011-05-12
申请号：JP2009249641
申请日：2009-10-30
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： NAKAGAWA SHINJI , KANETOSHI KAZUHIKO , ICHIHARA TAKANOBU , OSUGA MINORU
IPC分类号： F02D43/00 , F02D13/02 , F02D41/04 , F02D41/36 , F02D45/00 , F02P5/15
CPC分类号： F02D41/0085 , F02B2075/125 , F02D13/0226 , F02D41/0002 , F02D41/1498 , F02D41/40 , F02D2041/001 , F02D2200/1012 , F02M26/13 , F02P5/1512 , Y02T10/123 , Y02T10/18
摘要： PROBLEM TO BE SOLVED: To detect and correct the dispersion of torque and the dispersion of air/fuel ratios with respect to the respective cylinders in a short period of time. SOLUTION: This control device for an engine includes: a means for calculating a mean value of angular acceleration with respect to each cylinder; a means for calculating the dispersion of the angular acceleration with respect to each cylinder; a means for estimating the torque with respect to each cylinder and the air/fuel ratio with respect to each cylinder based on the mean value of the angular acceleration with respect to each cylinder and/or the dispersion of the angular acceleration with respect to each cylinder; and a means for controlling intake air volume with respect to each cylinder and/or the amount of fuel injected with respect to each cylinder and/or ignition timing with respect to each cylinder based on the estimated torque with respect to each cylinder and the estimated air/fuel ratio with respect to each cylinder. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：在短时间内检测和校正扭矩的分散和空气/燃料比相对于各个气缸的分散。用于发动机的该控制装置包括：用于计算相对于每个气缸的角加速度的平均值的装置; 用于计算角加速度相对于每个气缸的色散的装置; 基于相对于每个气缸的角加速度的平均值和/或相对于每个气缸的角加速度的分散度，估计相对于每个气缸的扭矩和相对于每个气缸的空气/燃料比的装置 ; 以及用于相对于每个气缸和/或相对于每个气缸喷射的燃料量和/或点火正时相对于每个气缸控制进气体积的装置，基于相对于每个气缸和估计空气的估计转矩 /燃料比。版权所有（C）2011，JPO＆INPIT

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