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1. 发明专利

JP2014111902A Combustion control device of internal combustion engine 审中-公开
标题翻译：内燃机燃烧控制装置
公开(公告)号：JP2014111902A
公开(公告)日：2014-06-19
申请号：JP2012265941
申请日：2012-12-05
申请人： Diamond Electric Mfg Co Ltd , ダイヤモンド電機株式会社
发明人： IZUMI MITSUHIRO
IPC分类号： F02D45/00 , F02P17/12
摘要： PROBLEM TO BE SOLVED: To provide a combustion control device capable of realizing a proper combustion operation even when an alcohol-containing fuel is used.SOLUTION: A combustion control device of an internal combustion engine has first processing (ST2) repeatedly functioned at a proper timing, and specifying and storing a combustion determination parameter on the basis of an output of an ion current detecting circuit, second processing (ST3) for determining whether the used fuel is an alcohol-containing fuel or not by comparing the fuel determination parameter with a reference parameter indicated by a standard fuel, and third processing (ST4, ST5-ST9) executing an operation thereafter on the basis of a result of the determination. The fuel determination parameter is calculated on the basis of a peak value of a detection signal of a determination section reflecting behavior of thermal ion due to heat generation after starting the combustion, and the like.
摘要翻译：要解决的问题：提供即使使用含酒精燃料也能够实现适当的燃烧操作的燃烧控制装置。解决方案：内燃机的燃烧控制装置具有第一处理（ST2），在第二处理定时，并且基于离子电流检测电路的输出来指定和存储燃烧确定参数，用于通过将燃料确定参数与a的比较来确定所使用的燃料是否是含酒精燃料的第二处理（ST3）由标准燃料指示的参考参数，以及根据该确定结果执行其后的操作的第三处理（ST4，ST5-ST9）。基于反映在开始燃烧之后由于发热引起的热离子的行为的判定部的检测信号的峰值而计算燃料判定参数等。

2. 发明专利

JP2014101831A Ion current detecting device 审中-公开
标题翻译：离子电流检测器件
公开(公告)号：JP2014101831A
公开(公告)日：2014-06-05
申请号：JP2012255088
申请日：2012-11-21
申请人： Diamond Electric Mfg Co Ltd , ダイヤモンド電機株式会社
发明人： IZUMI MITSUHIRO , KUSUHARA ISAO , MINAMIGUCHI MASAHIRO
IPC分类号： F02P17/12 , F02P3/04 , F02P15/00
摘要： PROBLEM TO BE SOLVED: To solve problems that an alternator noise signal may be erroneously determined as a knock signal in determining knock in the vicinity of a peak value of ion waveform when noise generated from an alternator is superposed on ion electric current waveform, and further continuous combustion may be errorneously determined by the alternator noise signal, in determining accidental fire after reduction of ion waveform.SOLUTION: A low pressure side of a secondary coil 12 is connected to the ground through second and third diodes 52b, 52c connected in parallel, a second resistance 54b is disposed between cathode of the second diode 52b and the ground, further a high pressure side of the secondary coil 12 is connected to an ignition plug 40 discharging high voltage from the secondary coil 12 through forth and fifth diodes 52d, 52e connected in parallel, and a first Zener diode 50a is connected between the forth and fifth diodes 52d, 52e and the ignition plug 40.
摘要翻译：要解决的问题：为了解决当从交流发电机产生的噪声叠加在离子电流波形上时，在确定离子波形的峰值附近的爆震中可能错误地将交流发电机噪声信号确定为爆震信号的问题，并且进一步连续燃烧可能由交流发电机噪声信号错误地决定，在确定离子波形减少后的意外火灾中。解决方案：次级线圈12的低压侧通过并联连接的第二和第三二极管52b，52c连接到地，第二电阻器54b设置在第二二极管52b的阴极与地之间，另外，次级线圈12的高压侧连接到从次级线圈12通过第四二极管52d，52e放电高电压的火花塞40 并联，并且第一齐纳二极管50a连接在第四和第五二极管52d，52e和火花塞40之间。

3. 发明专利

JP2014092091A Ion current detecting device 审中-公开
标题翻译：离子电流检测装置
公开(公告)号：JP2014092091A
公开(公告)日：2014-05-19
申请号：JP2012243689
申请日：2012-11-05
申请人： Diamond Electric Mfg Co Ltd , ダイヤモンド電機株式会社
发明人： IZUMI MITSUHIRO
IPC分类号： F02P17/12 , F02P17/00
摘要： PROBLEM TO BE SOLVED: To solve such a problem that gasoline which remains after combustion is attached to an electrode of an ignition plug, when gasoline attached to the ignition plug is burnt upon the next combustion, the state of the ignition plug is changed every one time combustion, smoking resistance is also changed, when smoking determination is performed by comparing such smoking resistance and a smoking threshold, it is repeated that the ignition plug is determined as the smoking and the ignition plug is not determined as the smoking and, when the ignition plug is determined as the smoking, such a control as to suppress the smoking is performed and, therefore, in such a state, smoking suppression control is unstably performed.SOLUTION: A smoking resistance of an ignition plug 50 is calculated from a detection signal on the basis of an ion current detected by an ion current detection circuit 90 and both edge voltages of a capacitor 94, a moving average of the smoking resistance during a combustion cycle over a plurality of zones at every cylinder is calculated, the value of the moving average of the smoking resistance and the smoking threshold are compared and, when the value of the moving average of the smoking resistance is larger than the smoking threshold, it is determined that the smoking occurs in an internal combustion engine.
摘要翻译：要解决的问题：为了解决燃烧后残留的汽油附着在火花塞的电极上的问题，当在下一次燃烧时燃烧附着在火花塞上的汽油燃烧时，火花塞的状态每一次都变化时间燃烧，耐吸烟性也改变，当通过比较这种吸烟阻力和吸烟阈值进行吸烟确定时，重复地将火花塞确定为吸烟并且火花塞未被确定为吸烟，并且当火花塞被确定为吸烟，进行抑制吸烟的控制，因此在这种状态下，不稳定地进行吸烟抑制控制。解决方案：根据检测信号计算火花塞50的耐吸烟性基于由离子电流检测电路90检测的离子电流和电容器94的两个边缘电压，耐吸烟性的移动平均值在每个气缸的多个区域的燃烧循环期间，计算吸烟阻力和吸烟阈值的移动平均值，并且当吸烟阻力的移动平均值大于吸烟阈值时，确定在内燃机中发生吸烟。

4. 发明专利

JP2014092076A Ion current detection device 审中-公开
标题翻译：离子电流检测装置
公开(公告)号：JP2014092076A
公开(公告)日：2014-05-19
申请号：JP2012243262
申请日：2012-11-05
申请人： Diamond Electric Mfg Co Ltd , ダイヤモンド電機株式会社
发明人： IZUMI MITSUHIRO
IPC分类号： F02P17/12 , F02P17/00
摘要： PROBLEM TO BE SOLVED: To solve problems that a leakage current flowed between a central electrode and a side electrode does not become uniform if a crack or peeling is present in carbon accumulated at a spark plug, such leakage current causes a smoking resistance not to be accurately calculated at a calculating position for the smoking resistance, if the accurate smoking resistance cannot be calculated, accurate value cannot be attained as a true ion current value, combustion state is erroneously judged.SOLUTION: Smoking resistances of a spark plug 50 at several times within a leakage current measuring time are calculated in reference to a detected signal based on an ion current detected by an ion current detecting circuit 90 and voltages at both ends of a capacitor 94, a smoking resistance average value having smoking resistances at several times averaged is calculated, a true ion current waveform is calculated in reference to the detecting signal and a true smoking resistance on the basis of the ion current detected by the ion current detecting circuit 90 and then a combustion state of an internal combustion engine is judged by the true ion current waveform.
摘要翻译：要解决的问题：为了解决如果在火花塞中积聚的碳中存在裂纹或剥离的情况下，在中心电极和侧面电极之间流过的漏电流不会变得均匀的问题，则这种泄漏电流导致耐吸烟性不会在耐吸烟性的计算位置精确计算，如果无法计算准确的吸烟阻力，则不能以真正的离子电流值获得准确的值，因此燃烧状态被错误地判断。解决方案：几次火花塞50的吸烟阻力参考基于由离子电流检测电路90检测的离子电流和电容器94两端的电压的检测信号来计算泄漏电流测量时间，具有几次平均吸烟阻力的吸烟阻力平均值是计算出，根据检测信号和真实吸烟阻力计算出真正的离子电流波形由离子电流检测电路90检测到的离子电流的基础，然后由真正的离子电流波形来判断内燃机的燃烧状态。

5. 发明专利

JP2014070504A Ion current detection device 审中-公开
标题翻译：离子电流检测装置
公开(公告)号：JP2014070504A
公开(公告)日：2014-04-21
申请号：JP2012214904
申请日：2012-09-27
申请人： Diamond Electric Mfg Co Ltd , ダイヤモンド電機株式会社
发明人： IZUMI MITSUHIRO , KUSUHARA ISAO , MINAMIGUCHI MASAHIRO
IPC分类号： F02P17/12
摘要： PROBLEM TO BE SOLVED: To solve such a problem that, when noises generated from an alternator are superposed on an ion current waveform in the case of determining knock generated in an internal combustion engine from an ion current generated in a cylinder after the combustion of the internal combustion engine, they are erroneously determined as the knock.SOLUTION: A secondary coil 12 is connected at its low pressure side via a second diode 52b to a first Zener diode 50a, and the secondary coil 12 is connected at its high pressure side via a second Zener diode 50b to an ignition plug 40. A capacitor 54 is connected in parallel to the first zener diode 50a, a first diode 52a is connected among the capacitor 54, a connection part of the first Zener diode 50a, and the ignition plug 40, and the low pressure side of the secondary coil and a connection part of the second diode 52b are grounded via a resistance 56. The second Zener diode 50b is connected at its anode side to the secondary coil 12, and the second diode 52b is connected at its cathode side to the secondary coil 12.
摘要翻译：要解决的问题：为了解决这样一个问题，即当在内燃机中产生的爆震之后产生的离子电流在燃烧后的气缸中产生的离子电流时，由交流发电机产生的噪声叠加在离子电流波形上内燃机，它们被错误地确定为爆震。解决方案：次级线圈12在其低压侧通过第二二极管52b连接到第一齐纳二极管50a，次级线圈12在其高压侧通过第二齐纳二极管50b连接到火花塞40.电容器54与第一齐纳二极管50a并联连接，第一二极管52a连接在电容器54中，第一齐纳二极管50a的连接部分和火花塞 40，并且次级线圈的低压侧和第二二极管52b的连接部分经由电阻56接地。第二齐纳二极管50b在其阳极侧连接到次级线圈 12，第二二极管52b在其阴极侧连接到次级线圈12。

6. 发明专利

JP2013092132A Combustion control device for internal combustion engine 有权
标题翻译：内燃机用燃烧控制装置
公开(公告)号：JP2013092132A
公开(公告)日：2013-05-16
申请号：JP2011235633
申请日：2011-10-27
申请人： Diamond Electric Mfg Co Ltd , ダイヤモンド電機株式会社
发明人： IZUMI MITSUHIRO , SUGIZAKI SHINOBU
IPC分类号： F02P17/12 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a combustion control device capable of determining accurately a plague without adding a complex configuration.SOLUTION: A combustion control device for an internal combustion engine includes a signal detecting circuit DET which outputs a detection signal according to an ion current flowing in a combustion chamber of the internal combustion engine. Furthermore, a control device ECU for controlling an ignition coil CL includes: an acquisition means ST3 for acquiring the detection signal when a primary coil L1 is continuously in ON state; a specifying means (ST5) for accumulating the detected signals, calculating an accumulated value, and specifying a 10% position of the calculated accumulated value; and a control means (ST7 to ST11) for determining an occurrence of a plague based on the specified 10% position of the accumulated value and executing a combustion control operation corresponding to the determination.
摘要翻译：要解决的问题：提供一种能够在不添加复杂构造的情况下准确地确定瘟疫的燃烧控制装置。解决方案：用于内燃机的燃烧控制装置包括信号检测电路DET，其根据在内燃机的燃烧室中流动的离子电流输出检测信号。此外，用于控制点火线圈CL的控制装置ECU包括：当初级线圈L1连续处于接通状态时获取检测信号的获取装置ST3; 用于累积检测信号的指定装置（ST5），计算累加值，并指定计算出的累积值的10％位置; 以及控制装置（ST7至ST11），用于基于累积值的指定10％位置确定瘟疫的发生并执行与该确定相对应的燃烧控制操作。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2011099334A Combustion control device for internal combustion engine 审中-公开
标题翻译：内燃机用燃烧控制装置
公开(公告)号：JP2011099334A
公开(公告)日：2011-05-19
申请号：JP2009252762
申请日：2009-11-04
申请人： Diamond Electric Mfg Co Ltd , ダイヤモンド電機株式会社
发明人： IZUMI MITSUHIRO , FUKUMURA YOSHIYUKI
IPC分类号： F02D13/02 , F02D41/06 , F02D45/00 , F02P17/12
CPC分类号： Y02T10/42
摘要： PROBLEM TO BE SOLVED: To provide a combustion control device which controls a combustion state at a cold start without depending on an O
2 sensor.
SOLUTION: The combustion control device for an internal combustion engine includes a time management means (ST1-ST3) managing a control period until the lapse of a predetermined time from the time when the rotating speed is stabilized after the operation of the engine is started, a combustion acquiring means (ST4) controlling the fuel injection quantity according to a set value experimentally specified beforehand, while acquiring the propriety of the combustion state at predetermined time intervals in the control period; and an increase/decrease control means (ST6-ST7) controlling to decrease the overlap quantity of overlap-opening an intake valve and an exhaust valve when the combustion state acquired by the combustion acquiring means becomes worse than a lower limit level, while controlling to increase the overlap quantity when the combustion state becomes better than an upper limit level.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种燃烧控制装置，其控制冷启动时的燃烧状态，而不依赖于O 2 传感器。解决方案：用于内燃机的燃烧控制装置包括时间管理装置（ST1-ST3），其管理在发动机的操作之后从转速稳定的时间起经过了预定时间之前的控制周期燃烧获取装置（ST4），在控制周期中以预定的时间间隔获取燃烧状态的适当性，根据预先实验指定的设定值来控制燃料喷射量; 以及当燃烧获取装置获取的燃烧状态变得比下限水平差时，控制减小重叠打开进气门和排气门的重叠量的增减控制装置（ST6-ST7），同时控制当燃烧状态变得好于上限水平时，增加重叠量。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2010053782A Knock detection device of internal combustion engine 有权
标题翻译：内燃机启动检测装置
公开(公告)号：JP2010053782A
公开(公告)日：2010-03-11
申请号：JP2008219914
申请日：2008-08-28
申请人： Diamond Electric Mfg Co Ltd , ダイヤモンド電機株式会社
发明人： IZUMI MITSUHIRO , KUSUHARA ISAO
IPC分类号： F02D45/00 , F02P17/12
摘要： PROBLEM TO BE SOLVED: To provide a knock detection device of an internal combustion engine which allows accurate knock determination even at a preignition. SOLUTION: The device comprises an ECU, an ion current detection circuit ION and a knocking sensor SE. The ECU consists of a first means (ST14) for determining a level of a detection signal Vo from the ion current detection circuit to determine whether or not a combustion state starts when a switching element Q is turned on, and a second means (ST16) for determining that knocking occurs or determining whether or not the knocking occurs by starting an output level determination process of the knocking sensor after the OFF transition operation of the switching element, when it is determined that the combustion state is started by the first means. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种内燃机的爆震检测装置，其即使在预警时也允许精确的敲击确定。解决方案：该装置包括ECU，离子电流检测电路ION和敲击传感器SE。 ECU包括用于确定来自离子电流检测电路的检测信号Vo的电平的第一装置（ST14），以确定当开关元件Q导通时燃烧状态是否开始;以及第二装置（ST16）用于通过在确定通过第一装置开始燃烧状态之后，通过在开关元件的OFF转换操作之后开始爆震传感器的输出电平确定处理来确定是否发生爆震或者确定是否发生爆震。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2009221890A Method for determining combustion condition in internal combustion engine 有权
标题翻译：用于确定内燃机中燃烧条件的方法
公开(公告)号：JP2009221890A
公开(公告)日：2009-10-01
申请号：JP2008064791
申请日：2008-03-13
申请人： Daihatsu Motor Co Ltd , Diamond Electric Mfg Co Ltd , ダイハツ工業株式会社 , ダイヤモンド電機株式会社
发明人： ASANO MORIHITO , TAKAHASHI KOICHI , IZUMI MITSUHIRO , SUGIZAKI SHINOBU , ENKAI HIROSHI
IPC分类号： F02P17/12 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To prevent errorneous decision of a combustion condition by including the time of after-burning not contributing torque, in a method for determining the combustion condition in an internal combustion engine determining the combustion condition based on a period during which ion current in a combustion chamber is not less than threshold.
SOLUTION: In this method for judging the combustion condition, main combustion time atdc during which ion current based on main combustion generated at first after ignition is not less than threshold, whole elapsed time atdcmax during which ion current based on the last one of after-burning generated after main combustion is not less than threshold, and combustion retention time adding the main combustion time and time integrating a period during which ion current based on whole after-burning generated after main combustion from measurement start are measured respectively (S1). If ratio of a product of multiplication of whole elapsed time and combustion retention period atdcint to a square of main combustion time exceeds a prescribed value, whole elapsed time is selected as a criterion for determining the combustion condition. If ratio of the product of multiplication of whole elapsed time and combustion retention period atdcint to the square of main combustion time is less than the prescribed value, main combustion time is selected as the criterion.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了通过包括燃烧时间不产生扭矩来防止燃烧条件的错误判定，在用于确定内燃机中的燃烧条件的方法中，所述内燃机基于期间内的周期来确定燃烧条件燃烧室中的离子电流不小于阈值。解决方案：在用于判断燃烧条件的方法中，主燃烧时间atdc，其中基于在点火之后首先产生的主要燃烧的离子电流不小于阈值，基于最后一个离子电流的整个经过时间atdcmax 主燃烧后产生的后燃烧不小于阈值，并且分别测量主燃烧时间和时间积分的燃烧保持时间，其中分别计算从测量开始以来在主燃烧之后产生的整个后燃烧的离子电流的时间段（S1 ）。如果整体经过时间与燃烧保持期间乘积的乘积与主燃烧时间的平方的比例超过规定值，则选择整体经过时间作为判定燃烧条件的标准。如果整体经过时间与燃烧保持期间的乘积与主燃烧时间平方的比例小于规定值，则以主燃时间为准。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2008267336A Combustion detection device for internal combustion engine 有权
标题翻译：内燃机用燃烧检测装置
公开(公告)号：JP2008267336A
公开(公告)日：2008-11-06
申请号：JP2007114202
申请日：2007-04-24
申请人： Diamond Electric Mfg Co Ltd , ダイヤモンド電機株式会社
发明人： INAMURA GONOSUKE , IZUMI MITSUHIRO
IPC分类号： F02P17/12
摘要： PROBLEM TO BE SOLVED: To provide a combustion detection device for an internal combustion engine always appropriately operating irrespective of the combustion condition. SOLUTION: This device comprises a boosting circuit 1 varying output voltage V1 based on control signal Vcnt and a voltage generation circuit 2 generating bias voltage for current detection with receiving boost voltage V1 form the boosting circuit 1. The combustion detection device enables minute current flowing in the internal combustion engine during combustion or after combustion to be always detected as occasion demands by increasing boost voltage level from standard combustion condition. COPYRIGHT: (C)2009,JPO&INPIT

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