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1. 发明专利

JP2009121255A Engine control apparatus 有权
标题翻译：发动机控制装置
公开(公告)号：JP2009121255A
公开(公告)日：2009-06-04
申请号：JP2007293544
申请日：2007-11-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KURASHIMA YOSHIKUNI , HORI TOSHIO , MIYAMOTO YUJI
IPC分类号： F02D43/00 , F01N3/20 , F01N3/24 , F02D9/02 , F02D11/10 , F02D41/06 , F02D41/34 , F02D45/00 , F02P5/15
CPC分类号： F02D41/0002 , F02D37/02 , F02D41/0255 , F02D41/062 , F02D41/18 , F02D41/3029 , F02D41/3064 , F02D41/3836 , F02D41/402 , F02D41/405 , F02D2200/0402 , F02D2200/0404 , F02D2250/41 , Y02T10/42 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide an engine control apparatus capable of performing switching of a combustion pattern at timing enabling execution of fuel injection a plurality of times, in an engine operating state where fuel injection is performed a plurality of times in each combustion. SOLUTION: Each cylinder of the engine has an injector 112 and performs fuel injection from the injector 112 a predetermined number of times for each cylinder combustion. A control unit 200 controls fuel injection from the injector 112 and the ignition timing from a spark plug. The control unit 200, upon switching from a first combustion mode in which fuel injection is performed at least once for each cylinder combustion to a second combustion mode in which fuel injection is performed a greater number of times with a larger intake air volume than the first combustion mode, performs control to switch in the first combustion mode to a target intake air volume required in the second combustion mode to retard the ignition timing, and then to switch to the second combustion mode to further retard the ignition timing. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种发动机控制装置，其能够在能够执行多次燃料喷射的定时执行燃烧模式的切换，在每个执行多次燃料喷射的发动机运转状态下燃烧。
解决方案：发动机的每个气缸具有喷射器112，并且对于每个气缸燃烧，从喷射器112执行预定次数的燃料喷射。控制单元200控制来自喷射器112的燃料喷射和来自火花塞的点火正时。控制单元200在从对于每个气缸燃烧进行至少一次的燃料喷射到执行燃料喷射的第二燃烧模式的第一燃烧模式切换时，具有比第一燃烧模式更大的进气量燃烧模式，执行将第一燃烧模式切换到第二燃烧模式中所需的目标进气量的控制，以延迟点火正时，然后切换到第二燃烧模式，以进一步延迟点火正时。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2008240532A Control device for high pressure fuel system 有权
标题翻译：高压燃油系统控制装置
公开(公告)号：JP2008240532A
公开(公告)日：2008-10-09
申请号：JP2007078117
申请日：2007-03-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IIBOSHI YOICHI , KURASHIMA YOSHIKUNI , HORI TOSHIO , YAMAUCHI SUSUMU
IPC分类号： F02D41/34 , F02D41/22 , F02D41/32 , F02D45/00
CPC分类号： F02D41/40 , F02D35/023 , F02D41/0025 , F02D41/062 , F02D41/221 , F02D41/3836 , F02D2041/224 , F02D2041/225 , F02D2200/0602 , F02D2200/0604 , F02D2200/0611 , F02D2250/04 , F02M63/0225 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To reduce exhaust gas at starting, improve fuel pressure control performance in a low load region, and detect the malfunction of a high pressure fuel system. SOLUTION: This control device is provided for a high pressure oil system which has a high pressure pump for increasing the pressure of fuel to be discharged to a common rail, an injector for injecting the fuel stored in the common rail, and a fuel pressure sensor for measuring the pressure of the fuel stored in the common rail. It controls the high pressure pump and the injector in accordance with the output of the fuel pressure sensor. It comprises an equal elastic modulus estimating means for estimating the equal elastic modulus of the fuel in accordance with a pressure change when the fuel discharge amount of the high pressure pump is a predetermined value or more, a fuel pressure estimating means for estimating the fuel pressure in the common rail in accordance with the equal elastic modulus and control target values for the high pressure pump and the injector, and a fuel control means for correcting the injection pulse of the injector in accordance with the pressure estimated by the fuel pressure estimating means. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了减少起动时的排气，提高低负荷区域的燃料压力控制性能，并检测高压燃料系统的故障。解决方案：该控制装置设置用于高压油系统，该高压油系统具有用于增加要排放到共轨的燃料的压力的高压泵，用于喷射存储在共轨中的燃料的喷射器，以及燃料压力传感器，用于测量存储在共轨中的燃料的压力。它根据燃油压力传感器的输出控制高压泵和喷油器。它包括等弹性模量估计装置，用于根据当高压泵的燃料排放量为预定值以上时的压力变化来估计燃料的等弹性模量;燃料压力估计装置，用于估计燃料压力根据高压泵和喷射器的等弹性模量和控制目标值在共轨中，以及燃料控制装置，用于根据由燃料压力估计装置估计的压力校正喷射器的喷射脉冲。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008180225A Engine control device 审中-公开
标题翻译：发动机控制装置
公开(公告)号：JP2008180225A
公开(公告)日：2008-08-07
申请号：JP2008058915
申请日：2008-03-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAGAWA SHINJI , IIBOSHI YOICHI , KURASHIMA YOSHIKUNI , HORI TOSHIO
IPC分类号： F02D45/00 , F02D9/02 , F02D11/10 , F02D41/04 , F02D41/14 , F02D41/22
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide a control device enabling to diagnose the deterioration mode (gain deterioration and responsiveness deterioration) of an air-fuel ratio sensor and a degree of its deterioration with high accuracy and optimize air-fuel ratio feedback control in accordance with the diagnosis result.
SOLUTION: The control device comprises a means 140 for computing frequency responsive property in a range from an air-fuel ratio control means 30 to the air-fuel ratio sensor 52. It diagnoses the air-fuel ratio sensor 52 in accordance with the gain property and the phase property of the frequency responsive property. It optimizes the parameter (a P-component gain and a I-component gain) of the air-fuel ratio feedback control (PI control) in accordance with the diagnosis result.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够以高精度诊断空燃比传感器的劣化模式（增益劣化和响应性劣化）以及劣化程度的控制装置，并优化空燃比反馈控制按照诊断结果。解决方案：控制装置包括用于在从空燃比控制装置30到空燃比传感器52的范围内计算频率响应特性的装置140.它根据空燃比传感器52诊断空燃比传感器52 频率响应特性的增益特性和相位特性。它根据诊断结果优化空燃比反馈控制（PI控制）的参数（P分量增益和I分量增益）。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007303426A Diagnosis device of internal combustion engine 有权
标题翻译：内燃机诊断装置
公开(公告)号：JP2007303426A
公开(公告)日：2007-11-22
申请号：JP2006134371
申请日：2006-05-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IIBOSHI YOICHI , YAMAUCHI SUSUMU , HORI TOSHIO , KURASHIMA YOSHIKUNI
IPC分类号： F02D45/00
CPC分类号： F02D41/1495 , F02D41/0002 , F02D41/0065 , F02D41/1456 , F02D41/18 , F02D41/22 , F02D41/2425 , F02D2041/228 , F02D2200/0602 , F02D2200/0625 , F02P17/02 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide a diagnosis device capable of detecting deterioration of fuel consumption caused by abnormality of an internal combustion engine in an early stage without being influenced by operation conditions or dispersion in components, and to prevent traveling in a worse fuel consumption state. SOLUTION: The diagnosis device of the internal combustion engine is equipped with an adjustment device for adjusting a combustion state, and a correction device for correcting at least one of a throttle opening, a fuel injection pulse width, fuel injection timing, ignition timing, and an exhaust gas recirculation amount by estimating or detecting input or output of the internal combustion engine. The diagnosis device of the internal combustion engine is further equipped with a recording device 205 for recording a correction amount of the correction device for each of the predetermined time, and a fuel consumption evaluation means 303 for evaluating the fuel consumption of the internal combustion engine based on the recorded data recorded in the recording device 205 or the history of the recorded data. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种诊断装置，其能够在不受操作条件或部件分散的影响的情况下早期检测到由内燃机的异常引起的燃料消耗的劣化，并且防止行驶更差燃油消耗状态。解决方案：内燃机的诊断装置配备有用于调节燃烧状态的调节装置，以及用于校正节气门开度，燃料喷射脉冲宽度，燃料喷射正时，点火中的至少一个的校正装置定时和废气再循环量，通过估计或检测内燃机的输入或输出。内燃机的诊断装置还具备记录装置205，用于记录每个规定时间的校正装置的校正量，以及燃料消耗量评价装置303，其用于评价内燃机的燃料消耗量记录在记录装置205中的记录数据或记录数据的历史。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2006161587A Diagnostic system for vehicle 审中-公开
标题翻译：车辆诊断系统
公开(公告)号：JP2006161587A
公开(公告)日：2006-06-22
申请号：JP2004350552
申请日：2004-12-03
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： SOMENO TEI , HORI TOSHIO
IPC分类号： F02D45/00 , F01N3/20 , F01N3/22 , F02D41/22 , F02M25/07 , F02M25/08 , G01D21/00
CPC分类号： Y02A50/2322 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To assess frequency of diagnosis, by determining execution of diagnoses at the same timing in normal and abnormal functions. SOLUTION: The diagnostic system comprises: a diagnostic means for a part or a function including a means for determining the normality of the part or the function and a means for determining the failure of the part or the function; a means for estimating the timing for determination of the failure by the means for determining the failure; and a means for determining that the diagnosis has been executed by the diagnostic means when the timing is detected by the means for detecting the timing. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过在正常和异常功能的同一时间确定诊断的执行来评估诊断频率。解决方案：诊断系统包括：用于部件或功能的诊断装置，包括用于确定部件或功能的正常性的装置和用于确定部件或功能的故障的装置; 用于通过用于确定故障的装置来估计故障确定的时间的装置; 以及用于当通过用于检测定时的装置检测到定时时，确定诊断装置已经执行诊断的装置。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004340038A Cylinder determination device for internal combustion engine, and internal combustion engine with cylinder determination device 审中-公开
公开(公告)号：JP2004340038A
公开(公告)日：2004-12-02
申请号：JP2003138069
申请日：2003-05-16
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： TATE TAKESHI , ISHIKURA HISATSUGU , NEMOTO MAMORU , HORI TOSHIO , ISHIKAWA HIROTO , IGARASHI BUNJI , NAGASAWA YOSHIAKI
IPC分类号： F02D45/00 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To provide a cylinder determination device for performing cylinder determination while one turn of a crankshaft, by utilizing a crank sensor of magnetic type advantageous on the cost front, or magnetoresistive element type, and by performing the cylinder determination without erroneous determination.
SOLUTION: In the cylinder determination device for an internal combustion engine, a cam signal plate has a recess group or a projection group of the number smaller than the number of cylinders of the engine by one. The number of recesses or projections of the recess group or the projection group is different from the number of that of the other recess group or the projection group. The crank signal plate has recesses or projections whose intervals are unequal in a predetermined crank angle, and are equal in the other crank angle, and the number of the unequal intervals is a half of the number of the cylinders. A signal based on the unequal interval parts is detected by a crank angle sensor, and a signal based on the cam signal plate is detected by a cam angle sensor. The cylinder determination device performs the cylinder determination by the signal based on the unequal interval parts and the signal based on the cam signal plate.
COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2002364394A CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002364394A
公开(公告)日：2002-12-18
申请号：JP2001166322
申请日：2001-06-01
申请人： HITACHI LTD
发明人： OKAMOTO TAKASHI , HORI TOSHIO
IPC分类号： F02D45/00 , F02D17/02 , F02D35/02 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/12 , F02D41/14 , F02D41/36
摘要： PROBLEM TO BE SOLVED: To provide a control system for an internal combustion engine that can satisfy a request for quick change in engine torque while minimizing a degradation in operating performance and exhaust gas in a cylinder injection type internal combustion engine of lean-burn design. SOLUTION: The control system for a multicylinder internal combustion engine of lean-burn design, upon a request for reductive change in internal combustion engine torque, cuts off fuel to a given number of cylinders, and controls the torque of operating cylinders other than the fuel-cut cylinders to produce the requested engine torque.

8. 发明专利

JP2002188523A CONTROL DEVICE FOR ENGINE 失效
公开(公告)号：JP2002188523A
公开(公告)日：2002-07-05
申请号：JP2000383069
申请日：2000-12-18
申请人： HITACHI LTD
发明人： HORI TOSHIO , IWAKI HIDEFUMI , YOSHIDA YOSHIYUKI
IPC分类号： F02M25/07 , F01N3/24 , F02D21/08 , F02D43/00 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a control device for an engine which can suppress discharge of unburned fuel. SOLUTION: In an engine, having a means performing EGR introducing exhaust gas to a combustion chamber and a means installed in an exhaust pipe to convert HC which is unburned fuel, the means converting HC performs EGR during the time from an engine start to having converting capacity (ON).

9. 发明专利

JP2001304043A FAILURE DIAGNOSING DEVICE FOR EXHAUST GAS RE-CIRCULATION DEVICE 失效
公开(公告)号：JP2001304043A
公开(公告)日：2001-10-31
申请号：JP2000119461
申请日：2000-04-20
申请人： HITACHI LTD , NISSAN MOTOR
发明人： OSAKI SATORU , HORI TOSHIO , MATSUNO OSAMU , TSUYUKI TAKESHI
IPC分类号： F02D21/08 , F02D41/00 , F02D41/22 , F02D45/00 , F02M25/07
摘要： PROBLEM TO BE SOLVED: To provide a failure diagnosing device for an exhaust gas re- circulation device capable of preventing error diagnosis as well as diagnosing the failure of the exhaust gas re-circulation device from intake pipe pressure with high accuracy by eliminating an influence of various external disturbance factors for changing the intake pipe pressure. SOLUTION: The failure diagnosing device for the exhaust gas re-circulation device is composed of a fresh air partial pressure estimating means 2911 for calculating fresh air partial pressure estimating value in an intake pipe from an operating condition of an internal combustion engine, an EGR gas partial pressure really measuring means 2914 for estimating an EGR gas partial pressure value on the basis of a really measured value of the intake pipe pressure detected by the intake pipe pressure detecting means 2911 and a calculated fresh air partial pressure estimating value, and a failure judging means 2910 for judging the failure on the basis of the estimated EGR gas partial pressure value and a detected operating condition.

10. 发明专利

JP2001173501A CONTROL DEVICE FOR ENGINE HAVING SOLENOID SUCTION EXHAUST VALVE 失效
公开(公告)号：JP2001173501A
公开(公告)日：2001-06-26
申请号：JP35613299
申请日：1999-12-15
申请人： HITACHI LTD , NISSAN MOTOR
发明人： ATAGO TAKESHI , IWAKI HIDEFUMI , HORI TOSHIO , ARAI KATSUHIRO , HIRASAWA TAKAHIKO
IPC分类号： F01L9/04 , F02D13/02 , F02D41/02 , F02D41/34 , F02D43/00 , F02P5/15
摘要： PROBLEM TO BE SOLVED: To provide a control device for an engine having a solenoid suction exhaust valve to provide an engine control device to realize ultra lean combustion, incapable of being heretofore realized, by effecting control by relating electromagnetically-driven suction and exhaust with control of an engine, and relieve discharge of a toxic substance. SOLUTION: An engine control device having a solenoid valve control means comprises a fuel injection control means to control an injection amount and an injection timing of fuel; an ignition timing control means to control an ignition timing; and an electromagnetically-driving means to perform opening closing device of the suction valve and the exhaust valve of an engine. A valve control means is provided to control the opening or the closing timing of at least the suction valve or the exhaust valve according to demand performance set by the operation condition of the engine, and the injection timing of the fuel is controlled according to the opening or the closing timing.

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