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71. 发明专利

JPH06294320A DIAGNOSTIC DEVICE FOR EXHAUST PURIFYING DEVICE 失效
公开(公告)号：JPH06294320A
公开(公告)日：1994-10-21
申请号：JP8332693
申请日：1993-04-09
申请人： HITACHI LTD
发明人： TAKAKU YUTAKA , ISHII TOSHIO
IPC分类号： F01N3/20 , F01N3/22 , F01N11/00 , F02D35/00 , F02D41/14 , F02D41/22 , F02D45/00 , F02P17/12 , F02P17/00
摘要： PURPOSE:To provide a diagnostic device for a catalyst and an air-fuel ratio sensor, which may not make diagnosis erroneously even if misfire and trouble in a secondary air system may be generated. CONSTITUTION:Misfire and any trouble in a secondary air system are detected by a misfire detecting means 9 and a secondary air system trouble detecting means 10. Deterioration index calculated by a deterioration index calculating means 11 is corrected in compliance with detected result by a correcting means 13. Judging is carried out by using the value after correction by a deterioration judging means 12. When the degree of misfire and the like is intense, judgement by the deterioration judging means 12 is interrupted by a interrupting means 14. Since deterioration of a catalyst and an air-fuel ratio sensor is not detected erroneously even of misfire and a trouble in the secondary air system are generated, it is possible to prevent the catalyst and the air-fuel ratio sensor which are not deteriorated yet from being exchanged erroneously, and also prevent running while mounting the catalyst and the air-fuel ratio sensor which have been deteriorated.

72. 发明专利

JPH05332189A COMBUSTION CONDITION DIAGNOSIS DEVICE FOR MULTICYLINDER ENGINE 失效
公开(公告)号：JPH05332189A
公开(公告)日：1993-12-14
申请号：JP14297992
申请日：1992-06-03
申请人： HITACHI LTD
发明人： TAKAKU YUTAKA , ISHII TOSHIO
IPC分类号： F02D41/04 , F02D41/14 , F02D41/22 , F02D45/00 , F02P5/152 , F02P5/153 , G01M15/11 , F02P5/15
摘要： PURPOSE:To obtain accurate diagnosis of a combustion condition within a wide range by specifying a function pattern based on a rotational speed per a cylinder and a combustion parameter, and obtaining combustion parameter dispersion. CONSTITUTION:Rotational speed in each cylinder is measured by a means 41, while a parameter of a combustion condition indicated by difference between the rotational speed of one cylinder and that of the other cylinder is computed by a means 42. The combustion conditions of a specified cylinder is judged by a means 47 according to a value of the parameter. A function pattern in respect to parameter dispersion is stored in a means 44 according to fluctuation of the rotational speed. The function pattern is sequentially specified based on the measured rotational speed and computed parameter, and a parameter corresponding to the rotational speed of the specified cylinder is learned by a means 45. The parameter dispersion is subtracted and corrected by a means 46, and a new parameter is obtained.

73. 发明专利

JP2010035358A Rotary actuator 审中-公开
标题翻译：旋转执行器
公开(公告)号：JP2010035358A
公开(公告)日：2010-02-12
申请号：JP2008195613
申请日：2008-07-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAYASE ISAO , SAKAMOTO HIROYUKI , TAKAKU YUTAKA
IPC分类号： H02N2/00 , F16D41/06
摘要： PROBLEM TO BE SOLVED: To prevent the rotational speed of the output shaft from decreasing in a tremor accumulation rotary actuator. SOLUTION: In a tremor accumulation rotary actuator, during the rotary motion of a first space forming member (rocking member) 2 in one direction, output members 3 and 7 are made to perform rotary motion together with the first space formation member 2 by means of first one-way mechanism portions 2, 3, 4 and 6. During a rotary motion period of the first space formation member 2 in the reverse direction, the output members 3 and 7 are blocked from returning to the reverse direction by means of second one-way mechanism portions 1, 3a, 8 and 7, and so that the rotary motion of the first space forming member 2 in one direction accumulates by means of the output members 3 and 7 and output. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止输出轴的转速在震动积累旋转致动器中减小。解决方案：在震颤堆积旋转致动器中，在第一空间形成构件（摆动构件）2沿一个方向的旋转运动期间，输出构件3和7与第一空间形成构件2一起进行旋转运动通过第一单向机构部分2,3,4和6.在第一空间形成构件2的相反方向的旋转运动期间，输出构件3和7被阻止通过装置返回到相反方向第二单向机构部分1,3a，8和7，并且使得第一空间形成构件2在一个方向上的旋转运动通过输出构件3和7积累并输出。版权所有（C）2010，JPO＆INPIT

74. 发明专利

JP2010006290A Control device for transmission 审中-公开
标题翻译：用于传输的控制装置
公开(公告)号：JP2010006290A
公开(公告)日：2010-01-14
申请号：JP2008169782
申请日：2008-06-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UESONO SHOICHIRO , TEJIMA TAKASHI , SAKAMOTO HIROYUKI , TAKAKU YUTAKA
IPC分类号： B60K6/48 , B60K6/547 , B60W10/02 , B60W10/10 , B60W20/00 , F16H59/18 , F16H59/42 , F16H59/44 , F16H59/58 , F16H59/60 , F16H59/68 , F16H61/02 , F16H61/68 , F16H61/684 , F16H61/688 , F16H63/50
CPC分类号： Y02T10/6221
摘要： PROBLEM TO BE SOLVED: To provide a control device for a transmission, making selection control for a change gear suitable for a vehicle. SOLUTION: When either of a first and second clutches 140, 141 is connected and one of a plurality of change gears of a transmission mechanism on a side corresponding to the clutch in the connected state is selected, a change gear of a stage closest to the selected change gear of the transmission mechanism on a side corresponding to the clutch in the connected state is selected as a change gear of a transmission mechanism on a side corresponding to the clutch in the released state. The optimal assist gear is selected thereby, and increase of machine sound, rotary inertia resistance, and the like are suppressed so that noise reduction and fuel economy of the vehicle are improved more than before. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于变速器的控制装置，对适用于车辆的变速档进行选择控制。解决方案：当选择第一离合器和第二离合器140,141中的任一个并且连接状态下对应于离合器的一侧的变速机构的多个变速齿轮之一时，在与释放状态下的离合器对应的一侧的变速机构的变速齿轮中，选择最靠近变速机构的与所述连接状态的离合器对应的一侧的变速机构。由此选择最佳的辅助齿轮，并且抑制了机器声音，旋转惯性阻力等的增加，使得车辆的降噪和燃料经济性比以前更好。版权所有（C）2010，JPO＆INPIT

75. 发明专利

JP2009138643A Vehicle diagnosis control device 有权
标题翻译：车辆诊断控制装置
公开(公告)号：JP2009138643A
公开(公告)日：2009-06-25
申请号：JP2007316405
申请日：2007-12-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKAMOTO HIROYUKI , TAKAKU YUTAKA
IPC分类号： F01N3/20 , F02D29/02
CPC分类号： F02D41/22 , B60W30/188 , B60W50/0205 , B60Y2300/476 , F01N11/007 , F01N2550/02 , F02D41/021 , F02D41/0235 , F02D41/1441 , F02D2250/24 , Y10S903/904
摘要： PROBLEM TO BE SOLVED: To provide a vehicle diagnosis control device capable of diagnosing at a plurality of engine operating points and extending a diagnostic region. SOLUTION: A vehicle is equipped with an internal combustion engine 1 and a rotary electric machine 5 as its power sources to drive wheels by driving force of the internal combustion engine 1 and/or rotary electric machine 5. The vehicle diagnosis control device 700 diagnoses the vehicle while controlling the vehicle. The diagnosis control device 700 makes the transition of the operating point to a plurality of diagnostic operating points to diagnose a catalyst and a rear O2 sensor. Besides, the diagnosis control device 700 compensates excessive or deficient driving force resulting from the transition of the operating point of the internal combustion engine 1 by performing a regenerative operation or a power running operation of the electric machine 5. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供能够诊断多个发动机工作点并延长诊断区域的车辆诊断控制装置。解决方案：车辆配备有内燃机1和旋转电机5作为其动力源，以通过内燃机1和/或旋转电机5的驱动力驱动车轮。车辆诊断控制装置 700在控制车辆时诊断车辆。诊断控制装置700将工作点转换到多个诊断工作点，以诊断催化剂和后O2传感器。此外，诊断控制装置700通过进行电动机5的再生运转或动力运行来补偿由内燃机1的运转点的转变而产生的过大或不足的驱动力。）2009，JPO＆INPIT

76. 发明专利

JP2009118710A Linear actuator 审中-公开
标题翻译：线性执行器
公开(公告)号：JP2009118710A
公开(公告)日：2009-05-28
申请号：JP2007292324
申请日：2007-11-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAYASE ISAO , SAKAMOTO HIROYUKI , TAKAKU YUTAKA
IPC分类号： H02N2/00 , F16H31/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that it is difficult for a linear actuator to perform an accurate positioning by accumulating unidirectional motions out of reciprocating motions by means of a reciprocating driving source because an output shaft is shifted by an external force when it is driven in the actuating direction of the external force; furthermore its wedge connection tends to a bottleneck in durability because the linear actuator has larger pressure on its contact surface due to point contact; and a complicated part shape causes an economical barrier to a low cost in trying to lower pressure on contact surface by changing configuration from point contact to linear contact. SOLUTION: A constitution is designed to install an intermediate output shaft and a final output shaft driven by it, to directly drive the intermediate output shaft by the reciprocating driving source through the wedge connection, and to drive the final output shaft by the intermediate output shaft after another wedge connection is released which has locked the final output shaft by its translatory motion. Further, the part shape to constitute the wedge connection is changed to be capable of mutual linear contact even if it is entirely the shape of rotating body, or capable of allowing a long range in the linear contact. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了解决线性致动器难以通过由往复运动驱动源往复运动而累积单向运动而进行精确定位的问题，因为输出轴由外力移动当其在外力的致动方向上被驱动时; 此外，由于线性致动器由于点接触而在其接触表面上具有较大的压力，所以其楔形连接趋向于耐久性的瓶颈; 并且复杂的部件形状通过将配置从点接触改变为线性接触而在试图降低接触表面上的压力方面导致成本低廉的障碍。解决方案：一种构造被设计成安装由其驱动的中间输出轴和最终输出轴，以通过楔形连接件通过往复式驱动源直接驱动中间输出轴，并且通过中间输出轴经另一个楔形连接被释放，其通过其平移运动锁定最终输出轴。此外，即使构成楔形连接的部件形状完全为旋转体的形状，也能够允许线性接触的长距离，能够进行相互线性接触。版权所有（C）2009，JPO＆INPIT

77. 发明专利

JP2003113736A MISFIRE DETECTION DEVICE 审中-公开
公开(公告)号：JP2003113736A
公开(公告)日：2003-04-18
申请号：JP2001308146
申请日：2001-10-04
申请人： HITACHI LTD
发明人： AONO TOSHIHIRO , NISHIGAITO TAKAOMI , KADOMUKAI YUZO , FUKUCHI EISAKU , TAKAKU YUTAKA , NAGANO MASAMI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To realize misfire detection by means of a simple operation. SOLUTION: At every explosion in each cylinder, a parameter indicating a rotating state of a crankshaft is computed from an interval in a pulse signal from a crank angle sensor. A specific frequency component is extracted from a time series of the rotating state indicating parameters. The specific frequency component is stored retroactively over the length of the period of the specific frequency or an integral multiple thereof. The intensity of the specific frequency is calculated from the stored specific frequency components, and a cylinder exploding when the stored specific frequency components satisfy a given magnitude relation is determined. A misfiring cylinder is located from the cylinder exploding when the specific frequency components satisfy the given magnitude relation and the intensity of the specific frequency.

78. 发明专利

JP2002257690A VEHICLE DIAGNOSING SYSTEM AND VEHICLE USING THE SAME 失效
公开(公告)号：JP2002257690A
公开(公告)日：2002-09-11
申请号：JP2001056474
申请日：2001-03-01
申请人： HITACHI LTD
发明人： SAKURAI KOHEI , KANEKAWA NOBUYASU , OSUGA MINORU , HOSHINO MASATOSHI , IIBOSHI YOICHI , TAKAKU YUTAKA
IPC分类号： G01M17/007 , B60S5/00 , G07C5/00 , G07C5/08 , H04W24/00
摘要： PROBLEM TO BE SOLVED: To detect faults of a vehicle diagnosing system itself or abnormalities caused through erroneous acts by vehicle users without adding a special hard wear in the vehicle diagnosing system in which the diagnosing information of vehicle is sent outside the vehicle through wireless communications, and also to construct the vehicle diagnosing system in which the diagnosing informa tion on vehicle is sent outside the vehicle at a low cost through wireless communications such as OBD III without newly adding another wireless commu nication means or another communication line which connects an electronic control unit with the wireless communication means. SOLUTION: The system for diagnosing vehicle is provided with a function which checks whether the communication between the electronic control unit and the wireless communication means is normally carried out or not or the wireless communication means is normal or not. An existing wireless communication provided in a vehicle equipped with vehicle-mounted information devices, a vehicle antitheft system, a keyless engine starting system or the like can be utilized, or the wireless communication means is mounted in the electronic control unit.

79. 发明专利

JP2002138822A CATALYST TEMPERATURE ESTIMATING METHOD FOR ENGINE EXHAUST EMISSION CONTROL DEVICE 审中-公开
公开(公告)号：JP2002138822A
公开(公告)日：2002-05-17
申请号：JP2001274156
申请日：2001-09-10
申请人： HITACHI LTD
发明人： KURIHARA NOBUO , KIMURA HIROSHI , TAKAKU YUTAKA , ISHII TOSHIO
IPC分类号： F02D45/00 , B01D53/86 , F01N3/20 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To make a highly precise estimation of catalyst temperature for diagnosing catalyst deterioration during operation. SOLUTION: In an exhaust emission control device for detecting an air-fuel ratio in exhaust emission from an engine, adjusting fuel injection amount to keep the air-fuel ratio in the exhaust emission at a predetermined level, and purifying the exhaust emission with a catalyst, a plurality of engine parameters are detected, the catalyst temperature or exhaust emission temperature near the catalyst is determined based on the plurality of engine parameters, and the catalyst deterioration is determined with the catalyst temperature or exhaust emission temperature near the catalyst as an indicator. Thus, the catalyst temperature can be estimated with high precision.

80. 发明专利

JP2002061537A SELF-DIAGNOSTIC DEVICE AND CONTROL DEVICE FOR ENGINE 失效
公开(公告)号：JP2002061537A
公开(公告)日：2002-02-28
申请号：JP2000248774
申请日：2000-08-18
申请人： HITACHI LTD
发明人： NAKAGAWA SHINJI , OSUGA MINORU , TAKAKU YUTAKA , KATOGI KOZO
IPC分类号： F02D45/00 , F02D41/00 , F02D41/14 , F02D41/22 , F02D41/34
摘要： PROBLEM TO BE SOLVED: To detect change of response characteristics of a linear air-fuel ratio sensor or response characteristics of an engine at high precision in a wide range of engine operation. SOLUTION: This device is provided with a means 50 to control an air-fuel ratio for each cylinder in the multi-cylinder engine, and the linear air-fuel ratio sensor 28 which makes output in proportion to the air-fuel ratio at an exhaust pipe collected part, the air-fuel ratio of a specific cylinder is changed for a specified quantity, an amplitude or frequency component of a vibration component based on an engine rotation number is extracted from a signal obtained from the linear air-fuel ratio sensor 28, and response characteristics of an air- fuel ratio detecting means or response characteristics of the engine are detected based on the amplitude or power of the frequency component.

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