公开(公告)号：US5755206A

公开(公告)日：1998-05-26

申请号：US742495

申请日：1996-11-01

申请人： Yasuhiro Takahashi ,  Wataru Fukui

发明人： Yasuhiro Takahashi ,  Wataru Fukui

IPC分类号： F02D35/02 ,  F02D37/02 ,  F02D41/04 ,  F02D41/14 ,  F02D41/34 ,  F02D43/00 ,  F02D45/00 ,  F02P5/152 ,  F02P5/153 ,  F02P17/12 ,  F02P5/14

CPC分类号： F02D35/021 ,  F02D37/02 ,  F02D2200/1004 ,  F02D2250/18

摘要： A control apparatus for an internal combustion engine capable of optimizing a control parameter for the engine on the basis of information concerning combustion state of the engine by making use of a detected ion current which changes with a high sensitivity in dependence on combustion state within an engine cylinder, for thereby realizing an engine operation control to reduce fuel cost without degrading a control performance for obtaining a high engine output and drivability of a motor vehicle equipped with the engine. The apparatus includes an ion current detecting means (12) for detecting an amount of ions generated within an engine cylinder under control in terms of an ion current (i) immediately after ignition for the engine cylinder, a decision-destined value detecting means (2) for determining a decision-destined value corresponding to a combustion state of the engine cylinder on the basis of a detected value (Ei) of the ion current, and a correction control means (2) for correcting a control parameter for controlling operation of the internal combustion engine when result of comparison of the decision-destined value with a reference value therefor indicates at least one of lowering in output power of the internal combustion engine and degradation in the combustion state in the engine cylinder.

摘要翻译： 一种用于内燃机的控制装置，其能够根据与发动机的燃烧状态有关的信息来优化发动机的控制参数，该检测的离子电流根据发动机内的燃烧状态以高灵敏度而变化 从而实现发动机操作控制以降低燃料成本，而不降低控制性能，以获得发动机配备的机动车辆的高发动机输出和驾驶性能。 该装置包括：离子电流检测装置，用于检测发动机气缸内根据发动机气缸立即点火后的离子电流（i）控制的离子产生量;判定目标值检测装置（2） ），用于基于所述离子电流的检测值（Ei）来确定与所述发动机气缸的燃烧状态相对应的判定目标值;以及校正控制装置（2），用于校正用于控制所述离子电流的操作的控制参数 内燃机在判定目标值与其参考值进行比较的结果时，表示内燃机的输出功率的降低和发动机气缸内的燃烧状态的降低中的至少一个。

公开(公告)号：US5747670A

公开(公告)日：1998-05-05

申请号：US742489

申请日：1996-11-01

申请人： Yasuhiro Takahashi ,  Wataru Fukui

发明人： Yasuhiro Takahashi ,  Wataru Fukui

IPC分类号： F02P17/12 ,  G01L23/22

CPC分类号： F02P17/12

摘要： A combustion state detecting apparatus for an internal combustion engine capable of detecting combustion state in the engine with high accuracy and reliability by deriving an ion current detection signal which is based on only an ion current by canceling out a leakage current component. The apparatus includes a high-voltage diode (11a, . . . , 11d) connected to a spark plug (8a, . . . , 8d), a bias voltage applying circuit (9) for applying a bias voltage (VBi) to the spark plug by way of the high-voltage diode, an ion current detecting circuit (12) for detecting an ion current (i) flowing through the spark plug immediately after ignition to thereby output an ion current detection signal (Ei), an electronic control unit (2) for determining combustion state of the engine on the basis of the ion current detection signal (Ei), and a leakage current compensating means (21, 22) connected in parallel with the ion current detecting means (12). The leakage current compensating means supplies a compensating current (ic) for canceling out a leakage current component (iL) flowing along a same path as the ion current (i). The ion current detecting means outputs as the ion current detection signal only an ion current signal component (io) from which the leakage current has been eliminated.

摘要翻译： 一种内燃机的燃烧状态检测装置，其能够通过取消基于离子电流的离子电流检测信号，通过抵消泄漏电流成分，以高精度和可靠性检测发动机的燃烧状态。 该装置包括连接到火花塞（8a，...，8d）的高压二极管（11a，...，11d），偏置电压施加电路（9），用于将偏置电压（VBi）施加到 通过高压二极管的火花塞;离子电流检测电路（12），其用于检测在点火后立即流过火花塞的离子流（i），从而输出离子电流检测信号（Ei），电子控制 用于基于离子电流检测信号（Ei）确定发动机的燃烧状态的单元（2）和与离子电流检测装置（12）并联连接的泄漏电流补偿装置（21,22）。 泄漏电流补偿装置提供用于消除沿着与离子电流（i）相同的路径流动的漏电流分量（iL）的补偿电流（ic）。 离子电流检测装置仅作为离子电流检测信号输出离开电流信号分量（io），从该离子电流信号分量已经消除了泄漏电流。

公开(公告)号：US6092015A

公开(公告)日：2000-07-18

申请号：US891035

申请日：1997-07-10

申请人： Yasuhiro Takahashi ,  Wataru Fukui

发明人： Yasuhiro Takahashi ,  Wataru Fukui

IPC分类号： G01M15/04 ,  F02D45/00 ,  F02P17/12 ,  G06G7/70 ,  G06F19/00

CPC分类号： F02P17/12

摘要： A combustion state detecting apparatus for an internal-combustion engine improves the signal-to-noise ratio of an ionic pulse signal to achieve good interfacing characteristic, high detection accuracy, and high control reliability without adding to cost. An electronic control unit (2A) which detects the combustion state in a spark plug according to an ionic pulse signal (Gi) includes: an edge detecting circuit (36) for detecting an end edge of an ionic pulse contained in the ionic pulse signal in a detection zone from a second reference crank angle to a first reference crank angle; a level detecting circuit (37) for detecting the level of the ionic pulse signal at the first reference crank angle; and a circuit (38) for determining the combustion state of the internal-combustion engine according to a detection result (Ni) received from the edge detecting circuit and a detection result (Li) received from the level detecting circuit. Thus, an ionic current detection signal can be pulsed using a simple circuit configuration, and the simple determining logic is used to reduce the load on the arithmetic processor of the electronic control unit.

摘要翻译： 用于内燃机的燃烧状态检测装置提高离子脉冲信号的信噪比，以实现良好的接口特性，高检测精度和高控制可靠性，而不增加成本。 根据离子脉冲信号（Gi）检测火花塞的燃烧状态的电子控制单元（2A）包括：边缘检测电路（36），用于检测离子脉冲信号中包含的离子脉冲的末端边缘 从第二参考曲柄角到第一参考曲柄角的检测区; 用于检测所述离子脉冲信号在所述第一参考曲柄角处的电平的电平检测电路（37） 以及根据从边缘检测电路接收的检测结果（Ni）和从电平检测电路接收的检测结果（Li）来确定内燃机的燃烧状态的电路（38）。 因此，离子电流检测信号可以使用简单的电路配置脉冲，并且简单的确定逻辑用于减少电子控制单元的运算处理器上的负载。

公开(公告)号：US5895839A

公开(公告)日：1999-04-20

申请号：US891034

申请日：1997-07-10

申请人： Yasuhiro Takahashi ,  Wataru Fukui

发明人： Yasuhiro Takahashi ,  Wataru Fukui

IPC分类号： G01M15/04 ,  F02D45/00 ,  F02P17/12 ,  G01M15/00 ,  F02P17/00 ,  G01L23/00

CPC分类号： F02P17/12

摘要： An combustion state detecting apparatus for an internal-combustion engine is provided for preventing control errors and detection errors by preventing a biasing circuit from discharging at the start of energization, thereby allowing good sensitivity for detecting ionic current to be maintained. The combustion state detecting apparatus comprises an ionic current detecting circuit which includes a biasing circuit connected to the low voltage end of a secondary winding of an ignition coil and which detects ionic current flowing from the biasing circuit via a spark plug after the combustion of a fuel-air mixture. A current limiting circuit is provided between the low voltage end of the secondary winding and the biasing circuit. An electronic control unit detects the combustion state at the spark plug according to the ionic current. The biasing means circuit applies a bias voltage of the opposite polarity from high voltage for ignition to the spark plug via the low voltage end of the secondary winding; and the current limiting means controls the current flowing from the biasing means to the spark plug via the secondary winding, thus restraining the voltage at the high voltage end of the secondary winding when starting current supply to a primary winding.

摘要翻译： 提供一种用于内燃机的燃烧状态检测装置，用于通过在通电开始时防止偏置电路放电来防止控制误差和检测误差，从而允许保持良好的检测离子电流的灵敏度。 燃烧状态检测装置包括离子电流检测电路，其包括连接到点火线圈的次级绕组的低电压端的偏置电路，并且在燃料燃烧之后检测从偏置电路经由火花塞流动的离子电流 混合气 在次级绕组的低压端和偏置电路之间设置限流电路。 电子控制单元根据离子电流检测火花塞的燃烧状态。 偏置装置电路通过次级绕组的低电压端将与高电压相反极性的偏置电压施加到火花塞以点火; 并且电流限制装置控制通过次级绕组从偏置装置流向火花塞的电流，从而在向初级绕组启动电流供应时，限制次级绕组的高压端的电压。

公开(公告)号：US5675072A

公开(公告)日：1997-10-07

申请号：US579670

申请日：1995-12-28

申请人： Yukio Yasuda ,  Wataru Fukui ,  Yasuhiro Takahashi

发明人： Yukio Yasuda ,  Wataru Fukui ,  Yasuhiro Takahashi

IPC分类号： G01M15/04 ,  F02P17/12 ,  G01L23/22 ,  G01M15/12 ,  G01M15/00

CPC分类号： G01L23/22 ,  G01M15/12 ,  F02P2017/125 ,  F02P2017/128

摘要： To correctly sense combusting conditions of an internal combustion engine, an ion current caused by combustion is detected. A combusting condition detecting apparatus for an internal combustion engine comprises a bias voltage generating circuit for applying a bias voltage to an ignition plug provided in a cylinder of the internal combustion engine; an ion current-to-voltage converting circuit for converting an ion current produced in response to the bias voltage into a voltage corresponding to the ion current; a filter circuit for reducing or removing a pulsatory signal upon reception of the voltage signal outputted from the ion current-to-voltage converting circuit; a sensing period setting circuit for defining a predetermined combusting condition sensing period based upon a filter signal outputted from the filter circuit; and an AC component detecting circuit for detecting an AC (alternating current) component in a specific frequency region during the sensing period from the voltage signal derived from the ion current-to-voltage converting circuit.

摘要翻译： 为了正确地识别内燃机的燃烧条件，检测由燃烧引起的离子电流。 一种用于内燃机的燃烧条件检测装置，包括偏置电压产生电路，用于向设置在内燃机的气缸中的火花塞施加偏置电压; 用于将根据所述偏置电压产生的离子电流转换成对应于所述离子电流的电压的离子电流 - 电压转换电路; 滤波电路，用于在接收从离子电流 - 电压转换电路输出的电压信号时减少或去除脉动信号; 感测周期设定电路，用于基于从滤波电路输出的滤波信号来定义预定的燃烧条件检测周期; 以及AC分量检测电路，用于根据从离子电流 - 电压转换电路得到的电压信号在感测期间检测特定频率区域中的交流（交流）分量。

公开(公告)号：US6054859A

公开(公告)日：2000-04-25

申请号：US743398

申请日：1996-11-01

申请人： Yasuhiro Takahashi ,  Wataru Fukui

发明人： Yasuhiro Takahashi ,  Wataru Fukui

IPC分类号： F02D45/00 ,  F02P17/12 ,  F02P17/00

CPC分类号： F02P17/12

摘要： A combustion state detecting apparatus for an internal combustion engine is capable of ensuring a satisfactory ion current detection sensitivity and reliability by preventing discharge of bias voltage to an ignition coil to thereby protect the bias voltage against lowering. The apparatus includes an ignition coil for generating a firing voltage, spark plugs to which the firing high-voltage is applied via a high-voltage supply circuitry connected to an output terminal of the ignition coil, a biasing device connected to the high-voltage supply circuitry for applying a bias voltage to the spark plug, a bias voltage protection device inserted between the output terminal of the ignition coil and the biasing device, an ion current detecting device for detecting ions generated in succession to discharging of the spark plug upon application of the firing high-voltage as an ion current which flows through the spark plug under the bias voltage applied to the spark plug, and an electronic control unit for detecting combustion state on the basis of detected value of the ion current.

摘要翻译： 用于内燃机的燃烧状态检测装置能够通过防止对点火线圈的偏压的放电来确保令人满意的离子电流检测灵敏度和可靠性，从而保护偏压不被降低。 该装置包括用于产生点火电压的点火线圈，经由连接到点火线圈的输出端子的高压电源电路施加击发高电压的火花塞，连接到高压电源的偏置装置 用于向火花塞施加偏置电压的电路，插入在点火线圈的输出端子和偏置装置之间的偏置电压保护装置，用于检测随着施加火花塞时排放火花塞而产生的离子的离子电流检测装置 作为在施加到火花塞的偏置电压下流过火花塞的离子电流的点火高电压，以及基于离子电流的检测值来检测燃烧状态的电子控制单元。

公开(公告)号：US6040698A

公开(公告)日：2000-03-21

申请号：US890020

申请日：1997-07-10

申请人： Yasuhiro Takahashi ,  Wataru Fukui

发明人： Yasuhiro Takahashi ,  Wataru Fukui

IPC分类号： G01M15/04 ,  F02D45/00 ,  F02P17/12 ,  F02P17/00

CPC分类号： F02P17/12

摘要： A combustion state detecting apparatus for an internal-combustion engine does not incur deteriorated ignition characteristics because the ionic current detecting circuit thereof is not affected by ignition current. The combustion state detecting apparatus is equipped with an ionic current detecting circuit (10A) which includes a biasing device (C) connected to the low voltage end of a secondary winding (2b) of an ignition coil (2) and which detects ionic current (i) flowing from the biasing device via a spark plug (4); rectifying device (5) which is inserted between the biasing device and the secondary winding so that the ionic current flows in the forward direction; a voltage clamping device (6) inserted between the secondary winding and the ground; and an ECU (20) which detects the combustion state according to the ionic current. The biasing device applies a bias voltage (VBi) of the opposite polarity from the high voltage for ignition to the spark; and the voltage clamping device limits a voltage (Vc) at the low voltage end of the secondary winding to a predetermined value when the high voltage for ignition appears, the absolute value of the predetermined value being set to the absolute value or more of the bias voltage.

摘要翻译： 由于其离子电流检测电路不受点火电流的影响，所以内燃机的燃烧状态检测装置不会引起劣化的点火特性。 燃烧状态检测装置配备有离子电流检测电路（10A），其包括连接到点火线圈（2）的次级绕组（2b）的低电压端并且检测离子电流的偏置装置（C） i）通过火花塞（4）从偏压装置流出; 整流装置（5），其插入在偏置装置和次级绕组之间，使得离子电流沿正向流动; 插入在次级绕组和地之间的电压钳位装置（6）; 以及根据离子电流检测燃烧状态的ECU（20）。 偏置装置将与高电压相反极性的偏置电压（VBi）施加到火花点; 并且当点火高电压出现时，电压钳位装置将次级绕组的低电压端的电压（Vc）限制为预定值，将预定值的绝对值设置为偏置的绝对值或更大的绝对值 电压。

公开(公告)号：US5785020A

公开(公告)日：1998-07-28

申请号：US890671

申请日：1997-07-09

申请人： Yasuhiro Takahashi ,  Wataru Fukui

发明人： Yasuhiro Takahashi ,  Wataru Fukui

IPC分类号： G01M15/04 ,  F02D45/00 ,  F02P5/152 ,  F02P5/153 ,  F02P17/12 ,  G01L23/22 ,  G05B11/36 ,  F02P5/14

CPC分类号： G01L23/221 ,  F02P17/12 ,  G01L23/225

摘要： A combustion state detecting apparatus for an internal-combustion engine permits an improved signal-to-noise ratio of a knocking signal with a resultant improved controllability without adding to the load on an electronic control unit (ECU). The combustion state detecting apparatus is equipped with: a knocking signal processing circuit 20 which generates a knocking signal (K) according to an ionic current detection signal (Ei); and an ECU (2A) which detects the combustion state at a spark plug according to the ionic current detection signal and the knocking signal.

摘要翻译： 用于内燃机的燃烧状态检测装置允许提高爆震信号的信噪比，从而提高可控性，而不增加电子控制单元（ECU）上的负载。 燃烧状态检测装置配备有：根据离子电流检测信号（Ei）产生爆震信号（K）的爆震信号处理电路20。 以及根据离子电流检测信号和敲击信号来检测火花塞的燃烧状态的ECU（2A）。

公开(公告)号：US09347996B2

公开(公告)日：2016-05-24

申请号：US13936642

申请日：2013-07-08

申请人： Masatoshi Uchida ,  Yasuhiro Takahashi ,  Koichi Ichikawa ,  Masahiko Mitsui

发明人： Masatoshi Uchida ,  Yasuhiro Takahashi ,  Koichi Ichikawa ,  Masahiko Mitsui

IPC分类号： G01N27/416 ,  G01R31/36

CPC分类号： G01R31/3606 ,  G01R31/3648 ,  G01R31/3679

摘要： A remaining life determining system for a stationary storage battery has a detecting unit configured to detect an evaluation value indicative of a deterioration level of the stationary storage battery, a first storage unit configured to store a usage history of the stationary storage battery, a second storage unit configured to store remaining life information associated with usage information of the stationary storage battery, a third storage unit configured to store remaining life basic information of the stationary storage battery, and a controller configured to estimate the remaining life of the stationary storage battery, from the usage history, the evaluation value, and the remaining life information.

摘要翻译： 一种用于固定式蓄电池的剩余寿命确定系统具有：检测单元，其被配置为检测表示所述固定式蓄电池的劣化水平的评估值;第一存储单元，其被配置为存储所述固定式蓄电池的使用历史;第二存储 被配置为存储与固定式蓄电池的使用信息相关联的剩余寿命信息的单元，被配置为存储固定蓄电池的剩余寿命基本信息的第三存储单元，以及被配置为从固定蓄电池的剩余寿命估计静止蓄电池的剩余寿命的控制器 使用历史，评估值和剩余寿命信息。

公开(公告)号：US09190978B2

公开(公告)日：2015-11-17

申请号：US14239037

申请日：2012-08-07

申请人： Yasuhiro Takahashi

发明人： Yasuhiro Takahashi

IPC分类号： H04B3/28 ,  H03H7/42 ,  H03H1/00

CPC分类号： H03H7/427 ,  H03H2001/0085

摘要： A differential transmission circuit includes differential signal transmission and reception units connected by a differential signal wiring having an inductor unit composed of magnetically coupled first and second inductors provided on first and second signal lines, an input-side capacitor unit including a first input-side capacitor having one terminal connected to a first inductor signal input terminal and the other terminal grounded and a second input-side capacitor having one terminal connected to a second inductor signal input terminal and the other terminal grounded, and an output-side capacitor unit including a first output-side capacitor having one terminal connected to a first inductor signal output terminal and the other terminal grounded and a second output-side capacitor having one terminal connected to a second inductor signal output terminal and the other terminal grounded.

摘要翻译： 差分传输电路包括由差分信号布线连接的差分信号发送和接收单元，差分信号布线具有由设置在第一和第二信号线上的磁耦合第一和第二电感器组成的电感单元，输入侧电容器单元包括第一输入侧电容器 具有一个端子连接到第一电感器信号输入端子并且另一个端子接地;以及第二输入侧电容器，其一个端子连接到第二电感器信号输入端子，而另一个端子接地;以及输出侧电容器单元，包括第一 输出侧电容器，其一个端子连接到第一电感器信号输出端子，另一个端子接地;以及第二输出侧电容器，其一个端子连接到第二电感器信号输出端子，另一个端子接地。