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1. 发明专利

JP2014051934A Spark ignition type direct-injection engine 有权
标题翻译：火花点火型直喷式发动机
公开(公告)号：JP2014051934A
公开(公告)日：2014-03-20
申请号：JP2012197395
申请日：2012-09-07
申请人： Mazda Motor Corp , マツダ株式会社
发明人： IWAI KOHEI , TAGA JUNICHI , NAKAGAWA SHIGERU , MIYAMOTO KOJI , ARAKI KEIJI
IPC分类号： F02D41/10 , F02B11/00 , F02D13/02 , F02D41/02 , F02D41/12 , F02D43/00 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To improve ignitability of spark ignition combustion upon returning from fuel cut.SOLUTION: An engine 1 includes: an injector 67; an ignition plug 25; a VVL 71 and an exhaust valve 22; and a PCM 10. The PCM 10 stops fuel injection to perform fuel cut on deceleration of the engine 1 while an accelerator is off, and resumes the fuel injection when an engine speed is lowered to a predetermined value. During the fuel cut, the PCM activates the VVL 71 and the exhaust valve 22 to introduce EGR gas into a cylinder 18. When resuming the fuel injection, the PCM activates the ignition plug 25 along with the activation of the VVL 71 and the exhaust valve 22 and operates the engine 1 by spark ignition combustion, and thereafter shifts to operation of the engine 1 by compression ignition combustion.
摘要翻译：要解决的问题：提高从燃料切断返回时火花点火燃烧的点火性。解决方案：发动机1包括：喷射器67; 火花塞25; VVL 71和排气阀22; PCM10。当加速器关闭时，PCM 10停止燃料喷射以对发动机1的减速进行燃料切断，并且当发动机转速降低到预定值时恢复燃料喷射。在燃料切断期间，PCM启动VVL 71和排气阀22以将EGR气体引入气缸18.当重新启动燃料喷射时，PCM随着VVL 71和排气阀的启动而激活火花塞25 并通过火花点火燃烧来操作发动机1，然后通过压缩点火燃烧转向发动机1的运转。

2. 发明专利

JP2007198306A Deterioration diagnosis device for linear air-fuel ratio sensor 审中-公开
标题翻译：用于线性空气 - 燃料比传感器的诊断诊断装置
公开(公告)号：JP2007198306A
公开(公告)日：2007-08-09
申请号：JP2006019279
申请日：2006-01-27
申请人： Mazda Motor Corp , マツダ株式会社
发明人： MIYAKOSHI MINORU , TERADA KOICHI , MIYAMOTO KOJI , TAKEBAYASHI HIROYUKI
IPC分类号： F02D45/00 , F02D41/04 , F02D41/14 , G01N27/26 , G01N27/409
摘要： PROBLEM TO BE SOLVED: To quickly execute highly accurate detection of deterioration while minimizing the degradation of emission during diagnosis as much as possible. SOLUTION: A disturbance generating means is provided for outputting disturbance to a feedback control system when predetermined diagnosing conditions are established. In accordance with the output of the linear air-fuel ratio sensor, at least one of a waste time and a time constant of the linear air-fuel ratio sensor is computed as a determination parameter. The disturbance generating means outputs the disturbance to the feedback control system to correct feedback before the disturbance generating means outputs the disturbance. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：尽可能快地执行高度精确的劣化检测，同时最小化诊断期间的排放降解。解决方案：提供干扰发生装置，用于当建立预定诊断条件时向反馈控制系统输出干扰。根据线性空燃比传感器的输出，计算线性空燃比传感器的浪费时间和时间常数中的至少一个作为确定参数。干扰发生装置在干扰发生装置输出干扰之前将干扰输出到反馈控制系统以校正反馈。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2007192037A Deterioration diagnosing device of linear air-fuel ratio sensor 有权
标题翻译：线性空气燃料比传感器的检测诊断装置
公开(公告)号：JP2007192037A
公开(公告)日：2007-08-02
申请号：JP2006008477
申请日：2006-01-17
申请人： Mazda Motor Corp , マツダ株式会社
发明人： MIYAKOSHI MINORU , TAKEBAYASHI HIROYUKI , TERADA KOICHI , MIYAMOTO KOJI
IPC分类号： F02D45/00 , F02D41/14
摘要： PROBLEM TO BE SOLVED: To prevent emission lowering during diagnosis and quickly detect deterioration with high accuracy.
SOLUTION: A deterioration diagnosing device of a linear air-fuel ratio sensor calculates at least one of an idle time and a time constant of the linear air-fuel sensor as a judgment parameter based on an output from the linear air-fuel ratio sensor in at least either one of fuel cut starting timing when fuel supply is cut with reduction of required load and fuel return starting timing for returning fuel supply due to decrease of engine rotation speed from when the fuel cut is performed.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了防止诊断期间的排放降低，并且以高精度快速检测劣化。解决方案：线性空燃比传感器的劣化诊断装置基于线性空气燃料的输出，计算线性空气燃料传感器的空转时间和时间常数中的至少一个作为判断参数比例传感器在燃料供给被切断并且由于从执行燃料切断而引起的转速降低时返回燃料供给的燃料返回开始时刻的燃料供给切断开始时刻中的至少一个。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2007009712A Degradation diagnostic device of linear air-fuel ratio sensor 有权
标题翻译：线性空气燃料比传感器的降解诊断装置
公开(公告)号：JP2007009712A
公开(公告)日：2007-01-18
申请号：JP2005187908
申请日：2005-06-28
申请人： Mazda Motor Corp , マツダ株式会社
发明人： TERADA KOICHI , MIYAMOTO KOJI , MIYAKOSHI MINORU , TAKEBAYASHI HIROYUKI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To prevent emission degradation at diagnosis as soon as possible, accurately detect one side degradation of a linear air-fuel ratio sensor and correct the deviation of a center air fuel ratio.
SOLUTION: The device outputs a value in proportion to an oxygen concentration in exhaust gas purified by a catalyst of an engine. When a prescribed diagnostic condition is established, an impulse-like disturbance is alternately outputted to a lean side and a rich side in a feedback control system. After the output of the disturbance, a differential value of the output PF of the liner air-fuel ratio sensor SW4 is output. At least one of waste time L and time constant τ of the liner air-fuel ratio sensor is computed as a determining parameter for degradation degradation individually independent on the lean side and rich side. The difference between the determining parameters computed from the disturbances on the lean side and rich side at the degradation diagnosis is computed. On the basis of the computed difference, the deviation of a reference input with respect to a target air-fuel ration is corrected.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了尽可能地防止诊断时的排放劣化，可以精确地检测线性空燃比传感器的一侧劣化并校正中心空燃比的偏差。解决方案：该装置输出与发动机的催化剂净化的废气中的氧浓度成比例的值。当建立规定的诊断条件时，在反馈控制系统中将脉冲状干扰交替地输出到稀侧和富侧。输出干扰后，输出衬套空燃比传感器SW4的输出PF的差分值。计算衬套空燃比传感器的浪费时间L和时间常数τ中的至少一个作为分别独立于贫侧和富侧的降解退化的确定参数。计算在劣化诊断时从贫侧和富侧的干扰计算的确定参数之间的差异。基于计算出的差异，校正参考输入相对于目标空燃比的偏差。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2006063853A Deterioration detection device for linear air fuel ratio sensor 有权
标题翻译：线性空气燃料比传感器检测装置
公开(公告)号：JP2006063853A
公开(公告)日：2006-03-09
申请号：JP2004246152
申请日：2004-08-26
申请人： Mazda Motor Corp , マツダ株式会社
发明人： TERADA KOICHI , MIYAKOSHI MINORU , MIYAMOTO KOJI , TAKEBAYASHI HIROYUKI
IPC分类号： F02D45/00 , F02D41/22
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide a deterioration detection device for a linear air fuel ratio sensor, capable of improving deterioration detection accuracy by providing disturbance for an air fuel ratio at the time of deterioration detection.
SOLUTION: This deterioration detection device for the linear air fuel ratio sensor is provided with an A/F shift means S2 for forcibly shifting A/F; a differentiation means S4 for differentiating an output value of the linear A/F sensor after the shift of the A/F; a peak value detection means S15 for detecting a peak value of output obtained by the differentiation means S4; a threshold value setting means S8 for setting a threshold value on the basis of the peak value; a waste time measuring means S11 for measuring time (waste time) until the differentiation value of the output of the linear A/F sensor exceeds the threshold value after the shift of the A/F by the A/F shift means S2; and a deterioration determination means S18 for determining waste time delay deterioration of the A/F sensor based on the waste time.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决问题的方案为了提供线性空燃比传感器的劣化检测装置，能够通过对劣化检测时的空燃比提供干扰来提高劣化检测精度。解决方案：用于线性空燃比传感器的劣化检测装置设有用于强制移动A / F的A / F移位装置S2; 微分装置S4，用于在A / F移位之后对线性A / F传感器的输出值进行微分; 用于检测由微分装置S4获得的输出的峰值的峰值检测装置S15; 阈值设定装置S8，用于根据峰值设定阈值; 在由A / F移位装置S2移位A / F之后，直到线性A / F传感器的输出的微分值超过阈值的时间（浪费时间）的浪费时间测量装置S11; 以及劣化确定装置S18，用于基于浪费时间确定A / F传感器的浪费时间延迟恶化。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JPH11280518A Control device for engine 失效
标题翻译：发动机控制装置
公开(公告)号：JPH11280518A
公开(公告)日：1999-10-12
申请号：JP8726698
申请日：1998-03-31
申请人： Mazda Motor Corp , マツダ株式会社
发明人： NISHIMURA EIJI , ISHIHARA TAKAHISA , MIYAMOTO KOJI
IPC分类号： F02D41/02 , F02D41/04 , F02D41/06 , F02D43/00 , F02P5/15
CPC分类号： F02P5/1506 , F02D41/0255 , Y02T10/26 , Y02T10/46
摘要： PROBLEM TO BE SOLVED: To provide a means capable of quickly rising temperature of an exhaust gas purifying catalyst while enhancing running performance, relating to an engine for rising temperature of the exhaust gas purifying catalyst by changing air/fuel ratio or ignition timing cold starting of the engine. SOLUTION: In an engine system A, ignition timing is markedly delayed or air/fuel ratio is changed to a rich side when an engine is cold started, and a temperature rise of a catalytic converter 27 is promoted. Here a more effective method of the ignition timing delayed and the air/fuel ratio changed to a rich side is used, and an early rise of temperature of the catalytic converter 27 is attained in an idle region with an exhaust gas discharge amount small further with low output requirement. While, delaying of the ignition timing is inhibited outside the idle region, that is, in a region of high output requirement, a temperature rise of the catalytic converter 27 is attained by only changing to a rich side of air/fuel ratio, and sufficient torque corresponding to the output requirement is obtained, running performance is enhanced.
摘要翻译：要解决的问题：提供一种能够通过改变空气/燃料比或点火正时冷起动来提高排气净化催化剂的温度上升的装置，同时提高运行性能，涉及排气净化催化剂的温度上升的发动机引擎。解决方案：在发动机系统A中，当发动机冷启动时，点火正时显着延迟或空燃比变为浓侧，促进催化转化器27的升温。这里，使用更为有效的点火正时的方法，使空燃比变为浓侧，并且在排气量进一步下降的空闲区域中达到催化转化器27的温度的早期上升，低产量要求。而在怠速区域以外，即使在高输出要求的区域内也能够抑制点火正时的延迟，所以仅通过变更为空燃比的丰富侧即达到催化转化器27的温度上升，获得与输出要求相对应的转矩，提高运行性能。

7. 发明专利

JP2013220400A Catalyst for purifying exhaust gas 有权
标题翻译：用于净化排气的催化剂
公开(公告)号：JP2013220400A
公开(公告)日：2013-10-28
申请号：JP2012095095
申请日：2012-04-18
申请人： Mazda Motor Corp , マツダ株式会社
发明人： AKAMINE MASAAKI , YAMADA KEIJI , KAWABATA HISAYA , NAKAYAMA KAEI , MIYAMOTO KOJI , SHIGETSU MASAHIKO
IPC分类号： B01J23/63 , B01D53/94 , B01J23/56 , B01J37/02 , F01N3/10 , F01N3/28 , F02B11/00
摘要： PROBLEM TO BE SOLVED: To efficiently purify exhaust gas containing a large amount of pentanes and CO discharged along with HCCI combustion from a gasoline engine.SOLUTION: An upper layer 43 of an exhaust gas purification catalyst 27 having a catalyst layer 42 of two upper and lower layers includes a Pt component and a Rh component, and a lower layer 44 contains a Pt component and a Pd component. In the catalyst layer 42, the Pt/Pd mass ratio is 10/45-25/45, and the Pt/Rh mass ratio is 2/1-5/1. The mass ratio of the Pt quantity of the upper layer 43 to the Pt quantity of the lower layer 44 is 75/25-95/5.
摘要翻译：要解决的问题：为了有效地净化含有大量戊烷和CO的废气与来自汽油发动机的HCCI燃烧一起排出。解决方案：排气净化催化剂27的上层43，其具有两个上部和下部的催化剂层42 下层包含Pt成分和Rh成分，下层44含有Pt成分和Pd成分。在催化剂层42中，Pt / Pd质量比为10/45〜25/45，Pt / Rh质量比为2 / 1-5 / 1。上层43的Pt量与下层44的Pt量的质量比为75/25〜95/5。

8. 发明专利

JP2009172527A Catalyst for cleaning exhaust gas 审中-公开
标题翻译：催化剂用于清洁排气
公开(公告)号：JP2009172527A
公开(公告)日：2009-08-06
申请号：JP2008014850
申请日：2008-01-25
申请人： Mazda Motor Corp , マツダ株式会社
发明人： YAMASE SHODAI , MIYAMOTO KOJI , KITAHATA HIROSHI
IPC分类号： B01J23/63 , B01D53/86 , B01D53/94 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide a catalyst for cleaning exhaust gas, which is produced by layering a HC adsorption layer 2 and catalyst layers 3a, 3b for removing the HC desorbed from the HC adsorption layer 2 in this order on a honeycomb carrier 1 and in which the HC adsorption efficiency of the HC adsorption layer 2 is increased. SOLUTION: The catalyst layers 3a, 3b are formed discontinuously in the flow direction of the exhaust gas so that a concave part 4 can be formed on the wall surface of a cell passage of the honeycomb carrier 1 in the middle position of the flow direction of the exhaust gas. A turbulent flow is produced in the exhaust gas by the concave part 4. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于清洗废气的催化剂，其是通过将HC吸附层2和催化剂层3a，3b层叠以将从HC吸附层2解吸的HC依次层叠在蜂窝体上载体1，其中HC吸附层2的HC吸附效率增加。解决方案：催化剂层3a，3b在排气的流动方向上不连续地形成，使得可以在蜂窝载体1的细胞通道的壁表面上形成凹部4，废气的流动方向。通过凹部4在废气中产生紊流。（C）2009，JPO＆INPIT

9. 发明专利

JP2008248819A Failure diagnostic device for air-fuel ratio sensor 审中-公开
标题翻译：空气 - 燃料比率传感器故障诊断装置
公开(公告)号：JP2008248819A
公开(公告)日：2008-10-16
申请号：JP2007092228
申请日：2007-03-30
申请人： Mazda Motor Corp , マツダ株式会社
发明人： SHIGIHAMA SHINGO , MIYAMOTO KOJI , HOSOGAI TETSUSHI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a means surely and correctly detecting deterioration of a linear air-fuel ratio sensor and a problem of a control unit itself performing deterioration diagnosis of the linear air-fuel ratio sensor.
SOLUTION: An engine 1 has the linear air-fuel ratio sensor 24, a simulator 26, and a control unit 30. The simulator 26 generates a pseudo signal of an air-fuel ratio based on a detection signal of the linear air-fuel ratio sensor 24. The detection signal of the linear air-fuel ratio sensor 24 or the pseudo signal is input to the control unit 30. The control unit 30 performs the deterioration diagnosis of the linear air-fuel ratio sensor 24. The control unit 30 determines whether the deterioration diagnosis is normal or not, based on a deterioration diagnosis result of the air-fuel ratio when the pseudo signal is input. The simulator 24 individually generates a pseudo signal based on an intake air amount signal of the engine 1 and responding to a change direction of the air-fuel ratio.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种可靠地正确地检测线性空燃比传感器的劣化的装置以及控制单元自身执行线性空燃比传感器的劣化诊断的问题。解决方案：发动机1具有线性空燃比传感器24，模拟器26和控制单元30.模拟器26基于线性空气的检测信号产生空燃比的伪信号 - 燃料比传感器24.线性空燃比传感器24或伪信号的检测信号被输入到控制单元30.控制单元30执行线性空燃比传感器24的劣化诊断。控制基于输入伪信号时的空燃比的劣化诊断结果，单元30判定劣化诊断是否正常。模拟器24基于发动机1的进气量信号分别产生伪信号，并响应空燃比的变化方向。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2008248818A Deterioration diagnostic device for air-fuel ratio sensor 审中-公开
标题翻译：用于空气 - 燃料比传感器的检测诊断装置
公开(公告)号：JP2008248818A
公开(公告)日：2008-10-16
申请号：JP2007092214
申请日：2007-03-30
申请人： Mazda Motor Corp , マツダ株式会社
发明人： SHIGIHAMA SHINGO , MIYAMOTO KOJI , NINOMIYA HIROSHI , HOSOGAI TETSUSHI
IPC分类号： F02D45/00 , G01N27/26
摘要： PROBLEM TO BE SOLVED: To provide a means surely and correctly detecting deterioration of a linear air-fuel ratio sensor and a problem of a control unit itself performing deterioration diagnosis of the linear air-fuel ratio sensor.
SOLUTION: An engine 1 has the linear air-fuel ratio sensor 24, a simulator 26, and a control unit 30. The simulator 26 generates a pseudo signal of an air-fuel ratio based on a detection signal of the linear air-fuel ratio sensor 24. The detection signal of the linear air-fuel ratio sensor 24 or the pseudo signal is input to the control unit 30. The control unit 30 performs the deterioration diagnosis of the linear air-fuel ratio sensor 24. The control unit 30 determines whether the deterioration diagnosis is normal or not, based on a deterioration diagnosis result of the air-fuel ratio when the pseudo signal is input. The simulator 24 individually generates a pseudo signal based on an intake air amount signal of the engine 1 and responding to a change direction of the air-fuel ratio.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种可靠地正确地检测线性空燃比传感器的劣化的装置以及控制单元自身执行线性空燃比传感器的劣化诊断的问题。解决方案：发动机1具有线性空燃比传感器24，模拟器26和控制单元30.模拟器26基于线性空气的检测信号产生空燃比的伪信号 - 燃料比传感器24.线性空燃比传感器24或伪信号的检测信号被输入到控制单元30.控制单元30执行线性空燃比传感器24的劣化诊断。控制基于输入伪信号时的空燃比的劣化诊断结果，单元30判定劣化诊断是否正常。模拟器24基于发动机1的进气量信号分别产生伪信号，并响应空燃比的变化方向。版权所有（C）2009，JPO＆INPIT

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