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1. 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

2. 发明专利

JP2006316709A Detection device of egr gas flow rate and engine control method 有权
标题翻译： EGR气体流量和发动机控制方法的检测装置
公开(公告)号：JP2006316709A
公开(公告)日：2006-11-24
申请号：JP2005140560
申请日：2005-05-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUKEGAWA YOSHIHIRO , YAMAOKA SHIRO , TOKUYASU NOBORU , IGARASHI SHINYA , FUKATSU KATSUAKI , KADOHIRO TAKASHI , IWAKI HIDEFUMI , ICHIHARA TAKANOBU
IPC分类号： F02M25/07 , F02D21/08 , F02D41/04 , F02D41/38 , F02D43/00
CPC分类号： F02M26/47 , F02M26/05
摘要： PROBLEM TO BE SOLVED: To prevent deterioration of the detection accuracy of a flow sensor caused by dirt and breakage of the sensor due to overheat by a flow sensor provided upstream of a throttle and by providing a flow sensor between a junction of EGR gas and fresh air and an intake pipe collector. SOLUTION: A detection device of an EGR gas flow rate has the flow sensors 9, 10 provided upstream and downstream of the junction of fresh air and EGR gas and obtains EGR gas volume from a flow rate difference between the two sensors. An EGR rate for every cylinder is estimated from the time-series values of EGR gas volume, and injection timing, an injection quantity, a pilot injection ratio and an EGR gas mixing means for every cylinder are controlled based on the estimated rate. The accuracy deterioration and breakage of the flow sensors caused by dirt and overheat can be thus prevented. Discharge of NOx and soot from the engine can be inhibited. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了防止由于由设置在节气门上游的流量传感器过热而导致的由污垢和传感器损坏引起的流量传感器的检测精度的劣化，并且在EGR的接合点之间设置流量传感器气体和新鲜空气和进气管收集器。解决方案：EGR气体流量的检测装置具有设置在新鲜空气和EGR气体的接合处的上游和下游的流量传感器9,10，并且从两个传感器之间的流量差获得EGR气体体积。根据EGR气体体积的时间序列值估计每个气缸的EGR率，并且基于估计的速率来控制每个气缸的喷射正时，喷射量，先导喷射比和EGR气体混合装置。因此可以防止由污垢和过热引起的流量传感器的精度劣化和破裂。可以抑制来自发动机的NOx和烟尘的排放。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2005117842A Power generation system 审中-公开
标题翻译：发电系统
公开(公告)号：JP2005117842A
公开(公告)日：2005-04-28
申请号：JP2003351469
申请日：2003-10-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMURA AKIYOSHI , TANI MASAYUKI , IDE KAZUMASA , FUTAMI MOTOO , ICHINOSE MASAYA , NOGI TOSHIJI , YAMAOKA SHIRO
IPC分类号： H02P9/04
摘要： PROBLEM TO BE SOLVED: To provide a power generation system capable of stably controlling the number of revolutions or the generator output against high-frequency fluctuation in number of revolutions that occurs in correspondence with one cycle of an engine. SOLUTION: The power generation system comprises the engine 2, the generator 1 having a rotor 20 that is driven by the engine 2 and a stator 22 having field winding 23 connected with a power system 21, a power converter 4 connected with the field winding 23 in the rotor 20 and the power system 21, and a flywheel 3 installed in the rotor 20. Alternating-current power supplied from the power system 21 is converted into alternating-current power with an arbitrary frequency by the power converter 4, and the field winding 23 is excited with the alternating-current power. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种发电系统，能够根据与发动机的一个循环相对应的发生的转数发生高频波动，稳定地控制转数或发电机输出。发电系统包括发动机2，发电机1具有由发动机2驱动的转子20和具有与电力系统21连接的励磁绕组23的定子22，与电力系统21连接的电力转换器4 转子20和动力系统21中的励磁绕组23和安装在转子20中的飞轮3.从电力系统21供给的交流电力由功率转换器4转换为任意频率的交流电力，并且励磁绕组23以交流电力激励。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2009250194A Cylinder injection engine 有权
标题翻译：气缸喷射发动机
公开(公告)号：JP2009250194A
公开(公告)日：2009-10-29
申请号：JP2008102398
申请日：2008-04-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIHARA YUSUKE , SUKEGAWA YOSHIHIRO , YAMAOKA SHIRO , KUMANO KENGO
IPC分类号： F02D41/34 , F02D23/02 , F02D41/02 , F02D41/04
CPC分类号： Y02T10/144 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide a cylinder injection engine in which residual gas in a fuel chamber can effectively be cooled and a power output and fuel consumption are improved without generating knocking in an operating range of an intermediate load and larger.
SOLUTION: A cylinder injection engine comprises a fuel injection valve provided at a position where fuel can be directly injected into a fuel chamber, and a control means for executing the control of opening and closing the fuel injection valve. The control means sets a fuel injection control range where fuel is fractioned into two or more and injected two or more times during an intake stroke in one cycle in an operating range of the intermediate load or larger, and controls the number of the fraction of the injection so that the number of fraction of the injection is increased in an operation range where an engine rotational number and the loading efficiency of the fuel chamber are small, and is decreased in an operation range where at least one of the engine rotational number and the loading efficiency is high.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种气缸喷射发动机，其中可以有效地冷却燃料室中的残留气体，并且在中间负载的操作范围内更大地产生爆震而提高功率输出和燃料消耗。解决方案：气缸喷射发动机包括设置在燃料可以直接喷射到燃料室的位置处的燃料喷射阀和用于执行燃料喷射阀的打开和关闭控制的控制装置。控制装置将燃料分馏成两个以上的燃料喷射控制范围，并且在中间负荷的操作范围内的一个循环中的进气冲程期间喷射2次以上，并且控制使得在发动机转数和燃料室的装载效率小的运转范围内喷射分数的数量增加，并且在发动机转速和发动机转数的至少一个的运转范围内减少装载效率高。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2009138655A Control device for spark ignition type internal combustion engine 有权
标题翻译：用于火花点火型内燃机的控制装置
公开(公告)号：JP2009138655A
公开(公告)日：2009-06-25
申请号：JP2007316923
申请日：2007-12-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KUMANO KENGO , YAMAOKA SHIRO , SUMIYA HIROSHI , SUKEGAWA YOSHIHIRO
IPC分类号： F02D41/34 , F02D13/02 , F02D41/04 , F02D45/00
CPC分类号： F02D41/402 , F02D13/0215 , F02D13/0265 , F02D35/027 , F02D37/02 , F02D41/006 , F02D41/401 , F02D2041/001 , Y02T10/18 , Y02T10/44 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide a control device for a spark ignition type internal combustion engine capable of avoiding knocking under a heavy load without using a residual gas suction device or the like, deteriorating exhaust emission by compression stroke injection, and reducing heat efficiency.
SOLUTION: An engine control unit (ECU) 20 is used for control of the cylinder injection type spark ignition type internal combustion engine. The ECU 20 injects fuel with dividing to a plurality of times and carries out first fuel injection toward internal EGR existing in a combustion chamber of the spark ignition engine when the spark ignition engine operates under a heavy load.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在不使用残留气体抽吸装置等的情况下避免在重负载下敲击的火花点火式内燃机的控制装置，通过压缩冲程喷射来减少废气排放，并且减少热效率。解决方案：发动机控制单元（ECU）20用于气缸喷射式火花点火式内燃机的控制。 ECU 20在分配多次的情况下喷射燃料，并且在火花点火式发动机在重负荷下运转时，向存在于火花点火发动机的燃烧室内的内部EGR进行第一燃料喷射。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008180185A Exhaust gas recirculation control sysyem for engine 审中-公开
标题翻译：用于发动机的排气回送控制系统
公开(公告)号：JP2008180185A
公开(公告)日：2008-08-07
申请号：JP2007015734
申请日：2007-01-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAOKA SHIRO , OHATA EIICHIRO , KUBO JUN , TOKUYASU NOBORU , OTSUKI TOSHIKI , HOSHIKA HIROAKI
IPC分类号： F02M25/07
CPC分类号： F02D41/005 , F02B29/0406 , F02B2275/14 , F02D2041/0075 , F02M26/05 , F02M26/06 , F02M26/28 , F02M26/35 , F02M26/47 , F02M26/49 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To prevent an EGR sensor installed in an EGR path of an engine from being soiled by soiling substance. SOLUTION: A catalyst is positioned upstream of the EGR sensor to purify the soiling substances in EGR gas. The status of the EGR sensor is properly controlled in accordance with conditions of the catalyst. This ensures the EGR sensor is less likely to be affected by the soiling substances in the exhaust gas under any circumstances of the EGR path and allows the EGR sensor to avoid a decrease in the accuracy of EGR gas detection. An alternative configuration may be employed such that the EGR gas recirculates from the downstream side of a catalyst installed in a main exhaust path. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止安装在发动机的EGR路径中的EGR传感器被污染物质污染。解决方案：催化剂位于EGR传感器的上游，以净化EGR气体中的污物。根据催化剂的条件适当地控制EGR传感器的状态。这确保EGR传感器在EGR通路的任何情况下不太可能受到废气中的污物的影响，并且允许EGR传感器避免EGR气体检测的精度降低。可以采用替代配置，使得EGR气体从安装在主排气路径中的催化剂的下游侧再循环。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008106782A Device and method for controlling multi-cylinder engine 有权
标题翻译：用于控制多缸发动机的装置和方法
公开(公告)号：JP2008106782A
公开(公告)日：2008-05-08
申请号：JP2008005761
申请日：2008-01-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAOKA SHIRO , NOGI TOSHIJI , SHIMADA ATSUSHI , KANEKAWA NOBUYASU , IIBOSHI YOICHI
IPC分类号： F02D45/00 , F02B11/00 , F02B23/10 , F02D13/02 , F02D41/02 , F02D41/04 , F02D43/00
CPC分类号： Y02T10/125
摘要： PROBLEM TO BE SOLVED: To provide a device and a method for controlling a multi-cylinder engine capable of suppressing dispersion in combustion between cylinders and cycles due to the dispersion between individual engines and components and the deterioration thereof in a compression ignition combustion mode in a multi-cylinder engine with the compression ignition combustion mode. SOLUTION: In this multi-cylinder engine with a compression ignition combustion mode, a frequency is desirably detected by a vibration detection sensor fitted to a cylinder block or a cylinder head, and the detected value is properly analyzed to detect or estimate a cylinder pressure peak value and a peak timing for each cylinder. An internal EGR amount, fuel injection conditions, and engine rotational speed are so controlled that they come within appropriate ranges. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于控制多缸发动机的装置和方法，所述装置和方法由于各个发动机和部件之间的分散以及压缩点火燃烧中的劣化而能够抑制气缸和循环之间的燃烧分散在具有压缩点火燃烧模式的多缸发动机中的模式。解决方案：在具有压缩点火燃烧模式的多缸发动机中，期望通过装配到气缸体或气缸盖的振动检测传感器来检测频率，并且适当地分析检测值以检测或估计气缸压力峰值和每个气缸的峰值正时。控制内部EGR量，燃料喷射条件和发动机转速使其达到适当的范围。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006317296A Thermal flowmeter and system 审中-公开
标题翻译：热流量计和系统
公开(公告)号：JP2006317296A
公开(公告)日：2006-11-24
申请号：JP2005140556
申请日：2005-05-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TOKUYASU NOBORU , IGARASHI SHINYA , FUKATSU KATSUAKI , KASHIO KAORI , TERADA DAISUKE , YAMAOKA SHIRO
IPC分类号： G01F1/68 , F02D35/00 , F02D41/18 , F02D45/00 , F02M25/07 , G01F1/00
CPC分类号： F02M26/47 , F02M26/05 , F02M26/49
摘要： PROBLEM TO BE SOLVED: To solve the problem that thermal flowmeters for automobiles can be broken when gases to be measured are anomalous. SOLUTION: A temperature detection element is installed to a thermal flowmeter to measure the temperature of gases to be measured. Detection results of the temperature of gases to be measured are fed back to this system or device control to enable the prevention of the breakage of the thermal flowmeter and diagnosis in the case of its breakage. It is possible by this invention to devise measures to prevent failure of the thermal flowmeter in a flowmeter for mainly measuring the quantity of flow of exhaust gases. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了解决当要测量的气体异常时汽车热流量计可以被破坏的问题。
解决方案：温度检测元件安装在热流量计上，以测量被测气体的温度。将要测量的气体的温度的检测结果反馈到该系统或装置控制器，以防止热流量计的断裂和在其破裂的情况下进行诊断。通过本发明，可以设计防止用于主要测量废气流量的流量计中的热流量计的故障的措施。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006317295A Thermal type flowmeter 审中-公开
标题翻译：热式流量计
公开(公告)号：JP2006317295A
公开(公告)日：2006-11-24
申请号：JP2005140554
申请日：2005-05-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KADOHIRO TAKASHI , IGARASHI SHINYA , FUKATSU KATSUAKI , TOKUYASU NOBORU , IWAKI HIDEFUMI , SUKEGAWA YOSHIHIRO , YAMAOKA SHIRO , ICHIHARA TAKANOBU
IPC分类号： G01F1/684 , F02D35/00 , F02M25/07 , G01F1/00 , G01F15/12
CPC分类号： F02M26/47 , F02M26/05 , F02M26/07 , F02M26/15
摘要： PROBLEM TO BE SOLVED: To provide a thermal type flowmeter capable of maintaining its measurement precision for a long period without pushing up the cost, by carrying out a countermeasure for fouling damages of a duct in which the flowmeter is installed in the case of being used in an exhaust gas atmosphere. SOLUTION: The duct inner cross section around the thermal type flowmeter in a passage duct is made large in comparison with its upstream side, thereby preventing any fouling damage nor degradation from occurring in the narrowest section around the thermal type flowmeter, and preventing the property from changing by the fouling damage of the passage duct. Since the fouling damage-resistant property of the flowmeter can be improved which mainly measures a flow rate of an exhaust gas, corresponding problems can be prevented from occurring, and the high-precision thermal type flowmeter whose life is long can be provided. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够长时间保持其测量精度而不会增加成本的热式流量计，通过执行用于将流量计安装在壳体中的管道的结垢损坏的对策被用在废气气氛中。
解决方案：与上游侧相比，通道导管周围的热式流量计周围的管道内部横截面较大，从而防止在热式流量计周围的最窄部分发生任何结垢损伤或降解，并防止该物品由于通道管道的结垢损坏而改变。由于能够提高排气的流量，因此能够提高流量计的防污损性，能够防止发生相应的问题，能够提供寿命长的高精度热式流量计。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006097597A Method for defining flow rate of exhaust gas, exhaust gas flow rate measurement device and exhaust gas recirculation control device 有权
标题翻译：用于定义排气流量的方法，排气流量测量装置和排气回送控制装置
公开(公告)号：JP2006097597A
公开(公告)日：2006-04-13
申请号：JP2004285649
申请日：2004-09-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMADA MASAMICHI , SUKEGAWA YOSHIHIRO , YAMAOKA SHIRO , TOKUYASU NOBORU , FUKATSU KATSUAKI
IPC分类号： F02D21/08 , F02D43/00 , F02D45/00 , F02M25/07
CPC分类号： F02D41/0072 , F02D41/1458 , F02D41/187 , F02D2041/0075 , F02D2041/1433 , F02D2200/0402 , F02D2200/0414 , F02D2250/38 , F02M26/47 , G01F1/698 , G01F1/86 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation control device performing EGR control of excellent response and good precision. SOLUTION: This exhaust gas recirculation control device includes a recirculation exhaust gas mass flow rate correction means operating oxygen concentration in all suction air including recirculation exhaust gas in a cylinder and ratio of oxygen quantity in all suction air and fuel injection quantity (oxygen quantity/fuel injection quantity ratio) and correcting recirculation exhaust gas mass flow rate signal based on estimated exhaust gas composition concentration to control at least EGR valve or fuel injection quantity with comparing a target value established according to an engine operation condition beforehand, and operates ratio of oxygen concentration in all suction air including recirculation exhaust gas in the cylinder, oxygen quantity in all suction air and fuel injection quantity (target oxygen quantity/fuel injection quantity ratio) with using corrected recirculation exhaust gas mass flow rate and performs EGR control. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供执行优异响应和良好精度的EGR控制的废气再循环控制装置。解决方案：该排气再循环控制装置包括再循环废气质量流量校正装置，其在包括气缸中的再循环废气的所有吸入空气中操作氧浓度，并且在所有吸入空气中的氧气量与燃料喷射量（氧气数量/燃料喷射量比），并且基于估计的废气组成浓度校正再循环废气质量流量信号，以便通过比较根据预先根据发动机运行条件建立的目标值来控制至少EGR阀或燃料喷射量，并且操作比在所有吸入空气中包括气体中的再循环废气中的氧气浓度，所有吸入空气中的氧气量和燃料喷射量（目标氧气/燃料喷射量比），并使用校正后的再循环废气质量流量进行EGR控制。版权所有（C）2006，JPO＆NCIPI

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