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1. 发明专利

JPH07293239A CRANK ANGLE SENSOR INTEGRATED TYPE ENGINE CONTROLLER 失效
公开(公告)号：JPH07293239A
公开(公告)日：1995-11-07
申请号：JP9218894
申请日：1994-04-28
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： NAKAZURU KUNIHITO , SASAKI SHOJI , KASHIMURA YUICHI , ZAITSU MASAHIRO
IPC分类号： F02P7/067 , F01P1/06 , F02D35/00 , F02D41/22 , F02P11/00 , F02P15/00
摘要： PURPOSE:To improve an antinoise property and reliability and enable the display of the necessary lowest limit function even if an engine control unit is failured in a sensor integrated type engine controller. CONSTITUTION:An engine control unit 30 is provided on the same base plate as that of a crank angle sensor 26 disposed in an engine room. A failure detecting circuit and back-up circuit in the failure of the engine control unit 30 together with a power transistor circuit for driving an injector 70 and ignition system are built in an actuator of the engine, for example, the injector 70 and ignition system. When a crank angle sensor 26 united with engine control unit 30 is mounted on the base plate, about several mms of length of a conductor between both will do. Thus, the control of the engine is hardly influenced by the engine ignition noise mixed from this short conductor to provide the engine control device excellent in anti-noise property. The function of the engine control unit can be backed up by the respective actuators of the engine.

2. 发明专利

JPH07133718A FAULT DIAGNOSIS DEVICE FOR SECONDARY AIR SUPPLIER OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH07133718A
公开(公告)日：1995-05-23
申请号：JP26456093
申请日：1993-10-22
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KASHIMURA YUICHI , ISHII TOSHIO , NUMATA AKITO
IPC分类号： G01M15/04 , F01N3/22 , F02D41/22 , F02D45/00 , G01M15/00
摘要： PURPOSE:To improve fault diagnosis accuracy of secondary air supply by diagnosing a fault in an internal combustion engine within a plurality of operating ranges, after detecting the operating condition of the internal combustion engine, and judging the fault of a secondary air supplier in accordance with the output of the respective fault diagnoses of the respective operating ranges. CONSTITUTION:Control device 112 respectively controls an ISCV(idling speed control valve) 111, an ignition plug 113 and a fuel injection valve 114 based on respective detected signals from respective sensors 102, 104, 109, 110 for respectively detecting the operating condition of an internal combustion engine. It also respectively controls a pump 120, which composes a secondary air supply, respective valves 121, 122, 123, and secondary air induced from an introduction hole 116 to an exhaust gas passage 115. It further diagnoses a fault in the internal combustion engine 101. In this case, the control device 112 diagnoses the fault in the secondary air supply in accordance with output of the respective fault diagnoses in respective operating ranges of the internal combustion engine. In other words, the fault is judged by either choosing the logic of respective faults diagnosis output or the logical product of the output or by combining the logical product and the logical sum.

3. 发明专利

JPH07293403A SENSOR INTEGRAL ENGINE CONTROLLER 失效
公开(公告)号：JPH07293403A
公开(公告)日：1995-11-07
申请号：JP9218794
申请日：1994-04-28
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KASHIMURA YUICHI , SASAKI SHOJI , NAKAZURU KUNIHITO , ZAITSU MASAHIRO
IPC分类号： F02P11/00 , F02D35/00 , F02D41/18 , F02D41/22 , F02M35/10 , F02M69/48 , F02P5/15
摘要： PURPOSE:To miniaturize an intake air quantity sensor integrated type engine controller, and enhance reliability thereof. CONSTITUTION:A storage part 35 covered with a cover 34 is formed in the body wall 33 of the intake passage 3 of an engine, and the sensor unit 3A of an air flow quantity meter is inserted to be freely attached/detached to/form the intake passage 3 from the radial direction of the passage through the storage part 35. The output circuit 38 of the air flow quantity meter and an engine control unit 30 to generate the control signal of the engine based on an output signal, from the output circuit 38 are storaged in the circuit substrate 29 of the storage part 35. Hereby, the installation structure of the sensor and a wiring substrate is simplified so as to miniaturize the engine controller and enhance reliability thereof.

4. 发明专利

JPH04159434A AIR-FUEL RATIO CONTROLLER 失效
公开(公告)号：JPH04159434A
公开(公告)日：1992-06-02
申请号：JP27904990
申请日：1990-10-19
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KASHIMURA YUICHI , SANO YUKINORI
IPC分类号： F02D45/00 , F02D41/14
摘要： PURPOSE:To enable good air-fuel ratio control at all times by learning air fuel ratio compensation coefficient per the predetermined region in the scope of learning, and using the value which is obtained by multiplying the air-fuel ratio compensation coefficient in the upper limit region in the scope of learning by the compensation value due to suction air amount in air-fuel ratio control in the region which exceeds the upper limit of the scope of learning. CONSTITUTION:A fuel injection valve 7 is opened and controlled sequentially in synchronization with a signal of a crank angle sensor 18 during the time of injection pulse width which is computed by an air-fuel ratio controller 15 to jet fuel into suction air. This fuel injection amount is compensated in accordance with deviation of air fuel ratio in exhaust gas and target air-fuel ratio based on an output signal of an exhaust gas sensor 14 to feedback-control air-fuel ratio. In this case, the air fuel ratio compensation coefficient is learned and compensated in accordance with deviation, and the air-fuel ratio compensation coefficient is learned per the predetermined region in the scope of learning of suction air amount. On the other hand, as for the region which exceeds the upper limit region in the scope of learning, air-fuel ratio control is done by using the value which is obtained by multiplying the air-fuel ratio compensation coefficient in the upper limit region in the scope of learning by the compensation value due to suction air amount.

5. 发明专利

JPH02136547A ENGINE CONTROLLER 失效
公开(公告)号：JPH02136547A
公开(公告)日：1990-05-25
申请号：JP29000888
申请日：1988-11-18
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KASHIMURA YUICHI , ISHII TOSHIO
IPC分类号： B60W10/04 , B60W10/00 , B60W10/06 , B60W10/10 , B60W10/11 , F02D29/00 , F02D45/00 , F16D61/00 , F16H59/74
摘要： PURPOSE:To permit the shift-up even in back-up by changing the speed change condition for an automatic transmission controller to the condition in the normal case in the first control circuit by outputting the output of the second control circuit into a driving circuit through a selecting circuit when anomaly occurs in the first control circuit. CONSTITUTION:The first CPU 1 receives each detection signal of a variety of sensors 12-14 for detecting the operation state of an engine through an input/ output circuit 4, and a variety of control signals are inputted into a fuel feeding device 8, ignition controller 10, fuel pump 10, and an automatic transmission controller 11 through each selecting circuit 7. In this case, when a CPU monitor signal 4a stops by the generation of an anomaly in the first CPU 1, a reset signal 5a is outputted into the second CPU 6 from a CPU monitoring circuit 5. In the second CPU 6, a selection signal 6a is outputted into a selecting circuit 7, and the control signals 7e-7b for the respective control equipment 8-11 are selected to the control signals 6e-6b of the second CPU 6.

6. 发明专利

JPH07286513A INTERNAL COMBUSTION ENGINE CONTROLLER 失效
公开(公告)号：JPH07286513A
公开(公告)日：1995-10-31
申请号：JP8013994
申请日：1994-04-19
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： NUMATA AKITO , ISHII TOSHIO , KASHIMURA YUICHI
IPC分类号： F01N3/22 , F02D41/14 , F02D41/22
摘要： PURPOSE:To reduce effect of the diagnosis of an abnormality on an exhaust condition by diagnosing the abnormality when at least one amount among the amounts which indicate an engine load condition is in a scope of above a predetermined value in the case where the abnormality is judged when a secondary air supply means which introduces air into an exhaust passage is operated. CONSTITUTION:A secondary air introduction system controls a pump 120 for secondary air, a vacuum cut valve 121, and an air cut valve 122 based on parameters which indicate an engine operation condition by a control unit 112. It promotes the reaction by oxidation of toxic components in exhaust gas such as HC and CO when, for example, an engine is started and purities toxic components in exhaust gas due to catalytic action. In this case, a difference in average values of air-fuel ratio correction coefficient when secondary air is supplied and when it is not supplied is obtained, and if the difference is below a predetermined value, it is diagnosed that a secondary air supply device causes an abnormality. This abnormality is diagnosed in a high load operation condition in which exhaust gas is not worsened and the amount of intake air is large.

7. 发明专利

JPH07167747A FAILURE DIAGNOSIS DEVICE OF SECONDARY AIR SUPPLY SYSTEM OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH07167747A
公开(公告)日：1995-07-04
申请号：JP31369993
申请日：1993-12-14
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： AGUSUTEIN ROGERIO , ISHII TOSHIO , KASHIMURA YUICHI
IPC分类号： G01M15/04 , F01N3/22 , F01N3/32 , F01N9/00 , F01N11/00 , F02B77/08 , F02D35/00 , F02D41/22 , F02D45/00 , G01M15/00
摘要： PURPOSE:To provide a failure diagnosis device of a secondary air supply system of an internal combustion engine which can measure the amount of secondary air flow without newly adding sensors, can cope with the change in exhaust gas level to be detected simply by changing the data of a diagnostic threshold and can reduce matching man-hour, and can constitute the entire part inexpensively, and at the same time accurately diagnose the failure of the secondary air supply system. CONSTITUTION:The device is provided with a means 2 for measuring the amount of intake air of an internal combustion engine 50, an internal combustion engine controller 3 for calculating the amount of fuel injection using the means 2 for measuring the amount of intake air, a meas 4 for supplying the amount of fuel injection which is calculated by the internal combustion engine controller 3 to an internal combustion engine, a means 7 for purifying the exhaust gas of the internal combustion engine 50, and secondary air supply means 8, 9, and 10 for mixing secondary air into the exhaust gas and at the same time is provided with a means 31, 11a, 32, and 11b for taking in the secondary air at the upstream and downstream sides of the means 2 for measuring the amount of intake air.

8. 发明专利

JPH07103057A DEVICE AND METHOD FOR DETECTING VEHICLE CONDITION 失效
公开(公告)号：JPH07103057A
公开(公告)日：1995-04-18
申请号：JP24917993
申请日：1993-10-05
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： SHIRAISHI TAKASHI , NEMOTO MAMORU , KASHIMURA YUICHI , ISHII TOSHIO
IPC分类号： F02D45/00 , B60K26/00 , F02B77/08 , F02P17/00 , F16H59/38 , F16H59/46 , F16H59/72 , F16H61/04 , G01M15/00 , G01M15/11 , G07C5/08
摘要： PURPOSE:To properly detect a condition change without using a particular sensor by grasping an influence according to fluctuating an external main cause of a vehicle as the condition change detected via a torque converter, and deciding a simulatively detected operating condition of the vehicle to be a true condition. CONSTITUTION:In a vehicle, an output of an engine 1 is transmitted to a drive shaft 3 or the like through a transmission 2 provided with a torque converter 14 or the like. Then in an engine control part 8, based on an operating condition of the engine 1, a misfire is decided in a misfire detecting decision part 8c, and on the other hand, in accordance with each calculating result of a fuel injection calculating part 8a and an ignition timing calculating part 8b, an injector 13 and a transmission control part 7 are controlled. Here in the misfire detecting decision part 8c, an operating condition of the vehicle is artificially detected. An influence according to fluctuating an external main cause of the vehicle is grasped as a condition change detected via the torque converter 14. Further in accordance with a detecting result of the external main cause, the artificially detected operating condition of the vehicle is decided to be a true condition.

9. 发明专利

JPH0771298A ABNORMAL CONDITION DETECTING DEVICE FOR SECONDARY AIR SUPPLYING DEVICE IN INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0771298A
公开(公告)日：1995-03-14
申请号：JP21547593
申请日：1993-08-31
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KASHIMURA YUICHI , ISHII TOSHIO , NUMATA AKITO
IPC分类号： F01N3/22 , F02B77/08 , F02D41/14 , F02D45/00
摘要： PURPOSE:To shorten an abnormal diagnosis time so as to suppress deterioration of exhaust gas to the minimum by changing an air-fuel ratio feedback constant for correcting the air-fuel ratio correction coefficient of an air-fuel ratio feedback means at the time of operation and non operation of a secondary air supplying means. CONSTITUTION:In an engine control device 112, a control signal for controlling a secondary air pump 120 and a vacuum cut valve 121 is outputted on the basis of a parameter showing engine operating condition, and a secondary air supplying amount is controlled by an air cut valve 122. It is thus possible to improve purifying efficiency in an exhaust gas harmful component. In this case, when it is judged there is in a range for carrying out abnormal diagnosis in a secondary air supplying part at the time of air-fuel ratio feedback control, secondary air is ON-supplied for diagnosis. When a passing time is a prescribed value and less after secondary air is ON-supplied, a correction amount is changed so as to judge an air-fuel ratio correction coefficient. When the value is a prescribed value or more, normal condition of secondary air is judged. On the other hand when the value is less than a prescribed value, abnormal condition is judged.

10. 发明专利

JP2011194245A Device for photographing blood vessel image 有权
标题翻译：用于摄影血管图像的装置
公开(公告)号：JP2011194245A
公开(公告)日：2011-10-06
申请号：JP2011113024
申请日：2011-05-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGASAKA AKIO , MIYATAKE TAKAFUMI , MIURA NAOTO , KASHIMURA YUICHI
IPC分类号： A61B5/117 , G06T1/00 , G06T7/00
摘要： PROBLEM TO BE SOLVED: To provide a compact authentication device highly resistant to external light and giving the user no feeling of pressure against him/her when photographing the patterns of blood vessels of his/her finger using the light transmitting it.SOLUTION: The device includes a finger position guide 118, a light source 114 provided at one or both sides of the guide for irradiation with light to transmit the finger, a photographing part 112 to image the finger-transmitting light, and a light shield means 116 to restrict the irradiated area with light emitted from the light source. Further, a means to measure the thickness of the finger, and a means to control the quantity of light from the light source according to the measurement results. Also, a means to record the registered image patterns of a plurality of fingers, a means to verify the finger image patterns obtained by the imaging part with respect to the registered patterns, and a means to control different image treatments according to the verification results are provided.
摘要翻译：要解决的问题：为了提供一种对外部光线具有高度抵抗力的紧凑认证装置，并且在使用透射该光的光拍摄他/她的手指的血管图案时，不给他/她施加压力。解决方案：该装置包括手指位置引导件118，设置在引导件的一侧或两侧的光源114，用于照射光以传送手指，拍摄部分112对手指透射光进行成像，以及遮光装置116，从光源发出的光照射面积。此外，测量手指的厚度的手段，以及根据测量结果控制来自光源的光量的装置。此外，记录多个手指的登记图像图案的手段，用于验证由成像部分相对于登记图案获得的手指图像图案的装置以及根据验证结果来控制不同图像处理的手段，提供。

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