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61. 发明专利

JP2009156216A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2009156216A
公开(公告)日：2009-07-16
申请号：JP2007337233
申请日：2007-12-27
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TERATANI RYUTA
IPC分类号： F02M25/07
CPC分类号： F02D41/0085 , F02D41/0055 , F02D41/1443 , F02D41/22 , F02M26/20 , F02M26/23 , F02M26/44 , F02M26/49 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To accurately specify a factor causing imbalance in air-fuel ratio between cylinders in a multi-cylinder type internal combustion engine equipped with an EGR device. SOLUTION: An engine 10 has cylinders 11-14 respectively connected to branch pipes 21-24 branched from a main pipe 20 as an intake manifold 16. Fuel injection valves 71-74 are attached to the branch pipes 21-24. Further, the branch pipes 21-24 are connected to branch pipes 61-64 branched from an EGR pipe 52 on a downstream side of the EGR valve 56, and exhaust gas introduced from the EGR valve 56 is fed to each of the branch pipes 21-24. An ECU 1000 detects imbalance of air-fuel ratio among cylinders based on cylinder-by-cylinder air-fuel ratio detected by air-fuel ratio sensors 81-84 provided in branch pipes 31-34 as an exhaust manifold 18. If there is an imbalance in air-fuel ratio among cylinders, the EGR valve 56 is closed, and thereafter, imbalance in air-fuel ratio among cylinders is detected again. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：精确地指定在装备有EGR装置的多缸型内燃机中导致气缸之间的空燃比不平衡的因素。解决方案：发动机10具有分别连接到从作为进气歧管16的主管20分支的支管21-24的气缸11-14。燃料喷射阀71-74附接到分支管21-24。此外，分支管21-24连接到从EGR阀56的下游侧的EGR管52分支的分支管61-64，并且从EGR阀56引入的废气被供给至各分支管21 -24。 ECU1000基于由作为排气歧管18的分支管31〜34中设置的空燃比传感器81-84检测到的以汽缸为单位的空燃比，来检测气缸之间的空燃比的不平衡。如果存在气缸之间的空燃比不平衡，EGR阀56关闭，此后再次检测气缸之间的空燃比不平衡。版权所有（C）2009，JPO＆INPIT

62. 发明专利

JP2009144617A Abnormality diagnosis device for exhaust gas recirculation device 有权
标题翻译：用于排气回收装置的非正常诊断装置
公开(公告)号：JP2009144617A
公开(公告)日：2009-07-02
申请号：JP2007323569
申请日：2007-12-14
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KAWASE KENICHIRO , HASHIMOTO YOSUKE , YAMASHITA KEISUKE
IPC分类号： F02M25/07
CPC分类号： F02D41/0047 , F01N3/035 , F02B37/00 , F02D41/0055 , F02D41/123 , F02D41/18 , F02D41/221 , F02D2041/228 , F02D2200/0406 , F02M26/49 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an abnormality diagnosis device for an exhaust gas recirculation device capable of certainly suppressing result of abnormality diagnosis from becoming erroneous caused by the fact that an opening degree of an exhaust gas recirculation valve is small in the beginning of diagnosis.
SOLUTION: The exhaust gas recirculation device 70 performs correction of the opening for reducing the target opening degree of the exhaust gas recirculation valve 73 as a density of the suction air becomes low. The abnormality diagnosis device for the exhaust gas recirculation device 70 forbids correction of the opening degree when it is determined that the execution condition of abnormality diagnosis is established, and performs valve-opening processing for increasing the opening degree of the exhaust gas recirculation valve 73 from the opening degree at that time to the larger side target opening degree than the smaller side target opening degree. Thereafter, the abnormality diagnosis device performs valve-closing processing for reducing the opening degree of the exhaust gas recirculation valve 73 to the smaller side target opening degree, monitors the variation degree of the suction state amount varied influenced by variation of the exhaust refluxing amount accompanying with execution of the valve-closing processing, and determines that abnormality has occurred in the exhaust gas recirculation device 70 by the fact that the monitored variation degree is smaller than a determination degree.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种排气再循环装置的异常诊断装置，其能够肯定地抑制异常诊断的结果，由于排气循环阀的开度在开始时小而导致的错误的诊断。解决方案：排气再循环装置70随着吸入空气的密度变低而进行用于降低排气再循环阀73的目标开度的开口的校正。当确定异常诊断的执行状态确定时，排气再循环装置70的异常诊断装置禁止开度的校正，并且执行用于增加排气再循环阀73的开度的开阀处理此时的开度比较小侧目标开度大。此后，异常诊断装置进行用于将排气再循环阀73的开度降低到较小侧目标开度的关闭处理，监视伴随着排气回流量的变化而变化的吸入状态量的变化程度执行阀关闭处理，并且通过所监视的变化度小于确定程度的事实来确定废气再循环装置70中的异常。版权所有（C）2009，JPO＆INPIT

63. 发明专利

JP4269982B2 Failure diagnosis device of the exhaust gas recirculation system 有权
公开(公告)号：JP4269982B2
公开(公告)日：2009-05-27
申请号：JP2004071311
申请日：2004-03-12
申请人：トヨタ自動車株式会社
发明人：卓也松本
IPC分类号： F02M25/07 , F02D45/00 , G01M15/00
CPC分类号： F02D41/0055 , F02D41/22 , F02D2200/0406 , F02D2200/0408 , F02M26/49 , Y02T10/47
摘要： An engine ECU of a failure diagnosis system for an EGR device starts the EGR device by opening an EGR valve upon establishment of monitor conditions, detects an actual intake pipe pressure PMON based on a value of a vacuum sensor upon elapse of a predetermine time, calculates an estimated intake pipe pressure PMON using a physical model, cuts the EGR operation by changing the opened state to the closed state of the EGR valve, detects an actual PMOFF based on an input value of the vacuum sensor upon elapse of a predetermined time from cut of EGR, calculates an estimated PMOFF using the physical model, and determines the operation of the EGR device as being normal when a result of comparing a difference between the estimated PMON and estimated PMOFF with a difference between the actual PMON and actual PMOFF is smaller than a predetermined value.

64. 发明专利

JP2009103132A Operating method of internal combustion engine 有权
标题翻译：内燃机的运行方法
公开(公告)号：JP2009103132A
公开(公告)日：2009-05-14
申请号：JP2008271816
申请日：2008-10-22
申请人： Robert Bosch Gmbh , ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh
发明人： BLEILE THOMAS , BLUMENDELLER WILHELM , MUELLER HORST
IPC分类号： F02M25/07
CPC分类号： F02D41/1448 , F02D41/0072 , F02D41/123 , F02D2200/0406 , F02M26/05 , F02M26/26 , F02M26/49
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine operating method capable of simply checking a function of a bypass valve of an exhaust gas recirculation system. SOLUTION: In this operating method of an internal combustion engine (10), fluid is introduced through a first fluid pipeline (44) at a first position of a bypass valve (42), and through a second fluid pipeline (46) at a position of the bypass valve (42), and a flow characteristic of the first fluid pipeline (44) is different from that of the second fluid pipeline (46). When the bypass valve (42) is moved to the first position, a first valve of a parameter indicating the fluid flow characteristic is found. When the bypass valve (42) is moved to the second position, a second value of the same parameter is found. A difference between both of the found values is evaluated, and a function of the bypass valve is estimated from it. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够简单地检查废气再循环系统的旁通阀的功能的内燃机操作方法。解决方案：在内燃机（10）的这种操作方法中，流体通过旁通阀（42）的第一位置处的第一流体管道（44）引入，并且通过第二流体管道（46）在旁通阀（42）的位置处，并且第一流体管道（44）的流动特性与第二流体管道（46）的流动特性不同。当旁通阀（42）移动到第一位置时，找到表示流体流动特性的参数的第一阀。当旁通阀（42）移动到第二位置时，找到相同参数的第二值。评估两个发现值之间的差异，并从其估计旁通阀的功能。版权所有（C）2009，JPO＆INPIT

65. 发明专利

JP2009503510A Flow sensor based on the fine 审中-公开
公开(公告)号：JP2009503510A
公开(公告)日：2009-01-29
申请号：JP2008524007
申请日：2006-07-24
申请人：ハネウェル・インターナショナル・インコーポレーテッド
发明人：クラフテファー，ブライアン・シー , ローズ，マイケル・エル
IPC分类号： G01F1/708 , F02D21/08 , F02D35/02 , F02D41/14 , F02M25/07 , G01F1/74 , G01N15/02 , G01N15/06 , G01P5/20
CPC分类号： G01F1/7088 , F01N11/00 , F01N2560/05 , F01N2560/07 , F02D41/1441 , F02D41/1445 , F02D41/1466 , F02M26/46 , F02M26/47 , F02M26/49 , F02M26/50 , G01N15/0656 , G01N2015/0046 , Y02T10/47
摘要：【課題】
【解決手段】装置にて２つ又はより多くの位置に配置された１つ以上の微粒子物質感知プローブ１２、１３、２４を有する流体移送装置５５、４８である。少なくとも２つの位置からのプローブからの信号１５、１６は、移送装置を通って流体内を流れる微粒子物質を表示することができる。信号間の時間１７は、移送装置内の微粒子物質の移動速度、また、流体の流量並びに方向を表示することができる。感知プローブの信号を処理して制御信号にすることができ、該制御信号は流れ制御機構３２に向けることができる。流れ制御機構の一例としての用途は、エンジン３１の排気ガス再循環システム用である。

66. 发明专利

JP2008101498A Exhaust gas recirculation device of internal combustion engine 有权
标题翻译：内燃机排气回收装置
公开(公告)号：JP2008101498A
公开(公告)日：2008-05-01
申请号：JP2006283240
申请日：2006-10-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OHATA EIICHIRO , YAMAOKA SHIRO , SUKEGAWA YOSHIHIRO , HOSHIKA HIROAKI , KASHIO KAORI
IPC分类号： F02M25/07
CPC分类号： F02D41/0055 , F02D41/0072 , F02D41/187 , F02D41/22 , F02D2041/0067 , F02D2041/0075 , F02D2200/0414 , F02M26/25 , F02M26/43 , F02M26/44 , F02M26/47 , F02M26/48 , F02M26/49 , F02M2026/003 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To solve the problem of continuing a backflow state in determining time by calculation processing and driving time of an EGR control valve, in addition to response delay time of a detector, when the EGR gas flowing direction changes to a backflow from a downflow, for performing valve closing control of an EGR valve, after sensing the backflow of EGR gas, in a conventional technology. SOLUTION: The EGR control valve comprises the EGR control valve arranged in an exhaust gas recirculating passage for circulating exhaust gas of an internal combustion engine to an intake passage from an exhaust passage, a measuring means for measuring a flow rate of the EGR gas flowing in the exhaust gas recirculating passage, and a control means for closing the EGR control valve, when the flow rate of the EGR gas is smaller than a predetermined threshold value, in a state of flowing to the intake side from the exhaust side of the internal combustion engine on the EGR gas flowing direction, by receiving input from the measuring means. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了解决在通过EGR控制阀的计算处理和驱动时间确定时间中继续回流状态的问题，除了检测器的响应延迟时间之外，当EGR气体流动方向变为在常规技术中，在感测到EGR气体的回流之后，用于执行EGR阀的阀关闭控制的向下流的回流。解决方案：EGR控制阀包括布置在废气再循环通道中的EGR控制阀，用于使内燃机的排气从排气通道循环到进气通道;测量装置，用于测量EGR的流量在废气再循环通道中流动的气体，以及当EGR气体的流量小于预定阈值时关闭EGR控制阀的控制装置处于从排气侧的排气侧流入进气侧的状态内燃机在EGR气体流动方向上，通过接收来自测量装置的输入。版权所有（C）2008，JPO＆INPIT

67. 发明专利

JP2008063964A Exhaust gas recirculating device 有权
标题翻译：排气再循环装置
公开(公告)号：JP2008063964A
公开(公告)日：2008-03-21
申请号：JP2006240196
申请日：2006-09-05
申请人： Denso Corp , 株式会社デンソー
发明人： KUSAJI HIDESHI
IPC分类号： F02M25/07
CPC分类号： F02D41/0055 , F02B29/0406 , F02D41/221 , F02D2041/2051 , F02D2041/2058 , F02M26/05 , F02M26/10 , F02M26/48 , F02M26/49 , F02M26/54 , F02M26/70 , F02M26/72 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an EGR device for detecting abnormality in an elastic member in an early stage. SOLUTION: An ECU performs abnormality detection in the EGR device 50 when it is determined that a vehicle is in a deceleration state during driving the vehicle loaded with an engine body. In the abnormality detection, when an opening of a valve member 52 of the EGR device 50 is zero, energization of an actuator 53 is stopped after once energizing the actuator 53 to open the valve member 52. When the opening of the valve member 52 is not zero, the energization of the actuator 53 is stopped as it is. In case of the abnormality being generated in a spring 54, the opening of the valve member 52 is not smaller than a prescribed value even when the energization of the actuator 53 is stopped, when the ECU determines that the abnormality is generated in the spring 54. In detecting the abnormality, the valve member 52 of the EGR device 50 is opened/closed in the deceleration state of the vehicle. Accordingly, the abnormality in the spring 54 is detected in the early stage without affecting an exhaust emission performance and driving performance of the engine body 11. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在早期阶段检测弹性构件的异常的EGR装置。解决方案：在驾驶装载有发动机主体的车辆时，当确定车辆处于减速状态时，ECU执行EGR装置50中的异常检测。在异常检测中，当EGR装置50的阀构件52的开度为零时，致动器53的通电在致动器53通电以使阀构件52打开之后停止。当阀构件52的开度为不为零，致动器53的通电原样停止。在弹簧54发生异常的情况下，即使当致动器53的通电停止时，阀构件52的开度也不小于规定值，当ECU判定在弹簧54中产生异常时在检测到异常时，EGR装置50的阀构件52在车辆的减速状态下开闭。因此，弹簧54的异常在早期阶段被检测，而不会影响发动机主体11的废气排放性能和驱动性能。（C）2008年，JPO和INPIT

68. 发明专利

JP4061528B2 Abnormality diagnosis apparatus for a vehicle 有权
公开(公告)号：JP4061528B2
公开(公告)日：2008-03-19
申请号：JP2001395936
申请日：2001-12-27
申请人：株式会社デンソー
发明人：啓二若原
IPC分类号： F02D45/00 , F02M25/08 , F01N3/20 , F01N3/22 , F01N3/30 , F01N3/32 , F01N11/00 , F02D21/08 , F02D41/00 , F02D41/22 , F02M25/07 , G01M15/05 , G05B23/02
CPC分类号： F01N11/007 , F01N3/225 , F01N3/303 , F01N3/32 , F01N2550/02 , F01N2570/10 , F01N2570/12 , F01N2570/16 , F01N2900/0421 , F02D41/0055 , F02D41/123 , F02D41/22 , F02D2200/0406 , F02M25/0809 , F02M26/15 , F02M26/49 , G01M15/05 , Y02A50/2322 , Y02T10/20 , Y02T10/47
摘要： A vehicle ECU performs abnormality diagnoses including a deterioration diagnosis for a catalyst, a leakage diagnosis for an evaporative gas purge system, an abnormality diagnosis for an EGR system, and an abnormality diagnosis for a secondary air introducing system. During abnormality diagnoses, the ECU calculates the performance frequency for each diagnosis. When the performance frequency has reached the required level, the ECU performs the abnormality diagnosis under the normal abnormality diagnosing condition (performance condition, diagnosing method, and judging condition) in order to not adversely affect exhaust emissions, vehicle drivability, etc. If the performance frequency has not reached the required level, the ECU performs the abnormality diagnosis by changing the abnormality diagnosing condition to emphasize an increase of the performance frequency of the abnormality diagnosis, thereby increasing the performance frequency of the abnormality diagnosis. Consequently, it is possible to maintain the performance frequency of the abnormality diagnosis for vehicle systems.

69. 发明专利

JP2007315193A Air-fuel ratio detecting device of internal combustion engine 审中-公开
标题翻译：内燃机空燃比检测装置
公开(公告)号：JP2007315193A
公开(公告)日：2007-12-06
申请号：JP2006143031
申请日：2006-05-23
申请人： Denso Corp , 株式会社デンソー
发明人： MITSUTA TETSUHARU , KOSAKA YASUO
IPC分类号： F02D45/00 , F02D41/14
CPC分类号： F02D41/221 , F02D41/008 , F02D41/1454 , F02D2041/001 , F02D2250/14 , F02M26/49 , F02M69/044 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To estimate a deviation in the air-fuel ratio of each cylinder taking into consideration an individual difference of an injector and influence of gas collision of exhaust gas, by forcibly changing the air-fuel ratio of each cylinder. SOLUTION: A multicylinder engine discriminates the cylinders by a crank angle detected by a crank angle sensor for calculating the air-fuel ratio of each cylinder by an air-fuel ratio sensor arranged in an exhaust pipe, and detects a deviation in the air-fuel ratio of each cylinder on the basis of an output signal of the air-fuel ratio sensor arranged in the exhaust pipe and a variation of forcibly changing the air-fuel ratio. COPYRIGHT: (C)2008,JPO&INPIT

70. 发明专利

JP2007162556A Egr method and egr device for diesel engine 审中-公开
标题翻译：柴油发动机的EGR方法和EGR装置
公开(公告)号：JP2007162556A
公开(公告)日：2007-06-28
申请号：JP2005358998
申请日：2005-12-13
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： NAKAMURA AKIHIDE
IPC分类号： F02M25/07
CPC分类号： F02M26/33 , F02B3/06 , F02D41/005 , F02M26/05 , F02M26/28 , F02M26/32 , F02M26/49 , F02M26/50
摘要： PROBLEM TO BE SOLVED: To provide an EGR method avoiding accumulation of deposits in an EGR valve even though EGR gas temperature and soluble organic material concentration differ from each other by operating conditions. SOLUTION: In a diesel engine provided with an EGR passage (4) and the EGR valve (6), an EGR cooler (7) cooling EGR gas by heat exchange with a refrigerant, and a control valve (14) regulating a flow rate of the refrigerant, are provided. A control means (31) includes a processing procedure to open the control valve (14) when it is necessary to cool EGR gas, a processing procedure to decide EGR gas temperature, a processing procedure to calculate soluble organic material concentration contained in EGR gas, a processing procedure to determine whether or not deposits are accumulated in the EGR valve based on data set from the EGR gas temperature and soluble organic material concentration, and a processing procedure to reduce or make zero the flow rate of the refrigerant flowing in the control valve (14) when it is determined that the deposits are accumulated in the EGR valve. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使EGR气体温度和可溶性有机材料浓度通过操作条件彼此不同，也提供了一种避免EGR阀中沉积物累积的EGR方法。解决方案：在具有EGR通路（4）和EGR阀（6）的柴油发动机中，通过与制冷剂进行热交换来冷却EGR气体的EGR冷却器（7）和调节提供制冷剂的流量。控制装置（31）包括当需要冷却EGR气体时打开控制阀（14）的处理程序，决定EGR气体温度的处理程序，计算EGR气体中所含的可溶性有机材料浓度的处理程序，根据从EGR气体温度和可溶性有机材料浓度确定的数据，确定沉积物是否积聚在EGR阀中的处理过程，以及减少或使零件流入控制阀的制冷剂的处理过程（14）当确定沉积物积聚在EGR阀中时。版权所有（C）2007，JPO＆INPIT

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