公开(公告)号：US20110156714A1

公开(公告)日：2011-06-30

申请号：US12978059

申请日：2010-12-23

申请人： Tomomichi MIZOGUCHI ,  Satoshi SOBUE

发明人： Tomomichi MIZOGUCHI ,  Satoshi SOBUE

IPC分类号： G01N27/416

CPC分类号： G01R31/3658 ,  G01R31/026

摘要： The battery fault determination apparatus includes battery monitor sections connected in a daisy chain, each of which is provided for a corresponding one of unit batteries each including battery cells connected in series to monitor the battery cells and output an output signal indicative of a monitoring result, and a control section configured to output a control signal to the battery monitor sections. The control signal and the output signal are cascaded through the battery monitor sections causing each battery monitor section to perform a state change between a state to monitor overcharge of the battery cells and a state to monitor wire breakage. Each battery monitor section is configured to receive the control signal from the immediately upstream-side battery monitor section, make a detection whether the state change has been performed correctly, and output the output signal including a detection result to the immediately downstream-side battery monitor section.

摘要翻译： 电池故障判定装置包括以菊花链方式连接的电池监视部，每个电池监视部设置用于各自包括串联连接的电池单元的相应一个单元电池，以监视电池单元并输出指示监视结果的输出信号， 以及控制部，被配置为向电池监视部输出控制信号。 控制信号和输出信号通过电池监视器级联，使得每个电池监视器部分在监视电池单元的过充电状态和监视断线状态之间执行状态改变。 每个电池监视器部分被配置为从紧接的上游侧电池监视部分接收控制信号，检查状态变化是否被正确地执行，并且将包括检测结果的输出信号输出到紧接的下游侧电池监视器 部分。

公开(公告)号：US06397659B1

公开(公告)日：2002-06-04

申请号：US09270754

申请日：1999-03-17

申请人： Tomomichi Mizoguchi ,  Masayuki Takami

发明人： Tomomichi Mizoguchi ,  Masayuki Takami

IPC分类号： G01N33497

CPC分类号： G01N27/407

摘要： A/F ratio sensor includes an element portion using a solid electrolytic layer, and generates a sensor current in proportion to an oxygen concentration in an exhaust gas when a voltage is applied thereto. A bias control circuit switches the voltage applied to the A/F ratio sensor to an element resistance detection voltage during an element resistance detection with a given time constant, and detects the sensor current flowing at that time. A comparing circuit detects an amount of voltage change reaching a given value. A timing decision circuit decides a detection of voltage and current changes during the decision timing of the comparing circuit. A data output circuit measures the current change relative to the voltage change in response to the timing decision of the timing decision circuit. In this apparatus, the voltage change and the current change are detected when the applied voltage, which change with the given time constant, reaches to the given reference voltage Vref. In other words, the amount of the current change &Dgr;I of the sensor current is detected before the voltage, which change with the given time constant, converges to the voltage V0.

摘要翻译： A / F比传感器包括使用固体电解质层的元件部分，并且当施加电压时，产生与排气中的氧浓度成比例的传感器电流。 在给定时间常数的元件电阻检测期间，偏置控制电路将施加到A / F比传感器的电压切换为元件电阻检测电压，并且检测当时流动的传感器电流。 比较电路检测达到给定值的电压变化量。 定时判定电路在比较电路的判定定时期间决定电压和电流变化的检测。 数据输出电路响应于定时决定电路的定时决定来测量相对于电压变化的电流变化。 在该装置中，当以给定时间常数变化的施加电压达到给定参考电压Vref时，检测电压变化和电流变化。 换句话说，在以给定时间常数变化的电压收敛到电压V0之前，检测传感器电流的电流变化量DELTAI。

公开(公告)号：US06258232B1

公开(公告)日：2001-07-10

申请号：US09218083

申请日：1998-12-22

申请人： Jun Hasegawa ,  Yukihiro Yamashita ,  Tomomichi Mizoguchi ,  Masayuki Takami

发明人： Jun Hasegawa ,  Yukihiro Yamashita ,  Tomomichi Mizoguchi ,  Masayuki Takami

IPC分类号： G01N27407

CPC分类号： F02D41/1494 ,  F02D41/1456 ,  G01N27/4067

摘要： A sensor element of an A/F sensor is constructed to laminate and integrate a solid electrolyte and a heater. The A/F sensor outputs a linear A/F detection signal proportional to the oxygen concentration in exhaust gases, when voltage is applied. An ECU controls the heater through heater control circuit to keep the sensor element at a predetermined activation temperature. The ECU detects an element resistance on the basis of the voltage applied to the sensor element and sensor current caused by the applied voltage, and converts the element resistance to an element temperature. During the temperature increasing of the A/F sensor, the current supply to the heater is duty-controlled according to the element temperature changing rate (the temperature increasing rate of the sensor element). Accordingly, the temperature increasing characteristics of the sensor is satisfactorily maintained, and disadvantages such as an element cracking are prevented.

摘要翻译： A / F传感器的传感器元件被构造成层压和集成固体电解质和加热器。 当施加电压时，A / F传感器输出与排气中的氧浓度成比例的线性A / F检测信号。 ECU通过加热器控制电路控制加热器，以将传感器元件保持在预定的活化温度。 ECU根据施加到传感器元件的电压和由施加电压引起的传感器电流检测元件电阻，并将元件电阻转换为元件温度。 在A / F传感器的温度升高期间，根据元件温度变化率（传感器元件的升温速率）对加热器的电流进行占空比控制。 因此，能够令人满意地保持传感器的升温特性，防止元件破裂等缺点。

公开(公告)号：US6084418A

公开(公告)日：2000-07-04

申请号：US38005

申请日：1998-03-11

申请人： Masayuki Takami ,  Tomomichi Mizoguchi ,  Satoshi Haseda ,  Kazuhiro Okazaki ,  Koji Jono

发明人： Masayuki Takami ,  Tomomichi Mizoguchi ,  Satoshi Haseda ,  Kazuhiro Okazaki ,  Koji Jono

IPC分类号： F02D41/14 ,  G01N27/406 ,  G01N33/00 ,  G01N27/04 ,  G01N27/419 ,  G01R27/08 ,  G01R27/22

CPC分类号： G01N27/4067 ,  F02D41/1494 ,  F02D41/1496 ,  F02D41/1456

摘要： An air-fuel ratio sensor generates linear air-fuel ratio detection signals proportional to concentration of oxygen in exhaust gas from an engine in response to a command voltage from a microprocessor. A bias command signal generated by the microprocessor is provided to a D/A converter which converts it to an analog signal. Thereafter, the signal is provided to an LPF for removing the high frequency components of the analog signal. Output voltage of the LPF is provided to a bias control circuit. A single AC signal which has a predetermined frequency and which is provided with a predetermined time constant (about 159 .mu.s) by the LPF is applied to the air-fuel ratio sensor. Element resistance of the air-fuel ratio sensor is detected based on the voltage of the AC signal and the change in the current level of the air-fuel ratio sensor caused by the application of the AC signal.

摘要翻译： 空燃比传感器响应于来自微处理器的命令电压产生与来自发动机的废气中的氧浓度成比例的线性空燃比检测信号。 由微处理器产生的偏置指令信号被提供给将其转换为模拟信号的D / A转换器。 此后，将信号提供给LPF，以去除模拟信号的高频分量。 LPF的输出电压被提供给偏置控制电路。 具有预定频率并且由LPF提供预定时间常数（约159μs）的单个AC信号被施加到空燃比传感器。 基于交流信号的电压和由于施加交流信号引起的空燃比传感器的当前电平的变化来检测空燃比传感器的元件电阻。

公开(公告)号：US5833836A

公开(公告)日：1998-11-10

申请号：US764652

申请日：1996-12-11

申请人： Masayuki Takami ,  Satoshi Haseda ,  Tomomichi Mizoguchi

发明人： Masayuki Takami ,  Satoshi Haseda ,  Tomomichi Mizoguchi

IPC分类号： G01N27/41 ,  F02D41/14 ,  G01N27/406 ,  G01N27/419 ,  G01N27/407

CPC分类号： G01N27/4065 ,  F02D41/1496 ,  F02D41/1456

摘要： To achieve change-over from detection of an internal resistance of an oxygen sensor S to detection of a threshold current effectively in a short time, a positive desired voltage for measuring a threshold current is applied to an oxygen sensor S to detect the threshold current and then a negative voltage for measuring a temperature is applied to the oxygen sensor S for a short time to detect an internal resistance of the oxygen sensor. After that, when the voltage applied to the oxygen sensor S is restored to a positive desired voltage for measuring the threshold current, by applying a voltage higher than this positive desired voltage temporarily to the oxygen sensor S, discharge or recharge of electric charges due to electrostatic capacitance components of the oxygen sensor S is completed quickly to reduce the time required for convergence to the threshold current when the voltage is changed. As a result, it is possible to reduce the time during which the threshold current cannot be detected.

摘要翻译： 为了实现从氧传感器S的内部电阻的检测到在短时间内有效检测阈值电流的切换，将用于测量阈值电流的正期望电压施加到氧传感器S以检测阈值电流，并且 然后用于测量温度的负电压短时间施加到氧传感器S以检测氧传感器的内阻。 此后，当向氧传感器S施加的电压恢复到用于测量阈值电流的正期望电压时，通过将高于该正期望电压的电压临时施加到氧传感器S，由于电荷的放电或再充电 氧传感器S的静电电容分量快速完成，以便在电压变化时减少收敛到阈值电流所需的时间。 结果，可以减少不能检测到阈值电流的时间。

公开(公告)号：US20120194135A1

公开(公告)日：2012-08-02

申请号：US13363682

申请日：2012-02-01

申请人： Tomomichi MIZOGUCHI

发明人： Tomomichi MIZOGUCHI

IPC分类号： H02J7/00 ,  G01R31/36

CPC分类号： H02J7/0016 ,  B60L58/18 ,  B60L58/22 ,  B60L2240/547 ,  G01R31/026 ,  G01R31/3648 ,  G01R31/3835 ,  G01R31/396 ,  Y02T10/7005 ,  Y02T10/7061

摘要： The battery voltage monitoring apparatus has a structure in which, for each adjacent two of battery cells, the positive electrode of the battery cell on the higher voltage side and the negative electrode of the battery cell on the lower voltage side are commonly connected to a corresponding one of common terminals provided in an RC filter circuit. The common terminal is branched into a first branch connected to one end of a first resistor and a second branch connected to one end of a second resistor, the first resistor being connected to a corresponding one of positive side detection terminals at the other end thereof, the second resistor being connected to a corresponding one of negative side detection terminals at the other end thereof. A capacitor is connected across a corresponding one of pairs of the positive side and negative side detection terminals.

摘要翻译： 电池电压监视装置具有这样的结构：对于每个相邻的两个电池单元，电池单元的高电压侧的正极和低电压侧的电池单元的负极共同连接到相应的 在RC滤波器电路中提供的公共端子之一。 公共端子分支为连接到第一电阻器的一端的第一分支和连接到第二电阻器的一端的第二分支，第一电阻器在另一端连接到相应的一个正侧检测端子， 第二电阻器在另一端连接到相应的负侧检测端子。 电容器连接在正侧和负侧检测端子对中的相应一对。

公开(公告)号：US20120187908A1

公开(公告)日：2012-07-26

申请号：US13499084

申请日：2010-09-28

申请人： Keisuke Tanigawa ,  Takumi Shimizu ,  Tomomichi Mizoguchi ,  Manabu Sasaki ,  Yoshiaki Kikuchi ,  Ryo Mano ,  Jyunta Izumi ,  Teruo Ishishita

发明人： Keisuke Tanigawa ,  Takumi Shimizu ,  Tomomichi Mizoguchi ,  Manabu Sasaki ,  Yoshiaki Kikuchi ,  Ryo Mano ,  Jyunta Izumi ,  Teruo Ishishita

IPC分类号： H02J7/00

CPC分类号： B60L11/1851 ,  B60L11/1861 ,  G01R19/16542 ,  G01R31/362 ,  G01R31/3658 ,  H01M10/482 ,  H02J7/0013 ,  H02J7/0021 ,  H02J7/0026 ,  Y02T10/7005 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7055

摘要： A plurality of voltage switching circuits 41 are provided in a switching unit 40 to relatively change a reference voltage to plural levels, thus detecting a spontaneous change of the reference voltage. A range of relative change in the reference voltage by the plurality of voltage switching circuits 41 is set to a usage voltage range 81 or 82 as a part of a total voltage range 80 of each of cells 1a to 1d. This eliminates the need to provide voltage switching circuits 41 required to relatively change the reference voltage over the total voltage range of each of the cells 1a to 1d, making it possible to minimize the number of the voltage switching circuits 41 for each of the cells 1a to 1d. Thus, it is possible to prevent the size of a battery pack control apparatus 2 from increasing.

摘要翻译： 多个电压切换电路41设置在开关单元40中，以将参考电压相对地改变为多个电平，从而检测参考电压的自发变化。 多个电压开关电路41的参考电压的相对变化范围被设定为使用电压范围81或82作为每个单元1a至1d的总电压范围80的一部分。 这样就不需要提供在每个单电池1a至1d的总电压范围内相对地改变参考电压所需的电压开关电路41，使得可以使每个电池1a的电压切换电路41的数量最小化 至1d。 因此，可以防止电池组控制装置2的尺寸增大。

公开(公告)号：US20090130542A1

公开(公告)日：2009-05-21

申请号：US12269301

申请日：2008-11-12

申请人： Tomomichi MIZOGUCHI ,  Yuuki Takemoto

发明人： Tomomichi MIZOGUCHI ,  Yuuki Takemoto

IPC分类号： H01M2/20

CPC分类号： H01M10/4207 ,  G01R31/026 ,  G01R31/3606 ,  G01R31/3658 ,  H01M10/425 ,  H01M10/482 ,  H02J7/0021 ,  H02J7/0026 ,  Y02T10/7055

摘要： The abnormality detection apparatus for a battery pack includes a first determining function of making a first determination that abnormality is present when a voltage across a unit battery of interest is higher than a first threshold, a second determining function of making a second determination that abnormality is present when the voltage is lower than a second threshold lower than the first threshold, a short-circuit function of making a short-circuit between a detection line of interest connected to one electrode of a unit battery of interest and an adjacent detection line connected to the other electrode of the unit battery, and a third determining function of making a third determination that there is faulty electrical continuity in the detection line of interest if the first determining function makes the first determination and the second determining function makes the second determination when the short circuit function makes the short-circuit.

摘要翻译： 电池组的异常检测装置包括：第一确定功能，当感兴趣的单位电池两端的电压高于第一阈值时，进行第一判断，存在异常;第二判定功能，第二判定功能是进行异常 当电压低于低于第一阈值的第二阈值时存在，在感兴趣的单位电池的一个电极连接的感兴趣的感测线之间发生短路的短路功能和连接到 如果第一确定功能使第一确定和第二确定功能进行第二确定，则在第三确定功能中进行第三确定，所述第三确定功能是在感兴趣的检测线中存在故障电连续性 短路功能使短路。

公开(公告)号：US6096187A

公开(公告)日：2000-08-01

申请号：US64154

申请日：1998-04-22

申请人： Tomomichi Mizoguchi ,  Masayuki Takami ,  Syuichi Nakano

发明人： Tomomichi Mizoguchi ,  Masayuki Takami ,  Syuichi Nakano

IPC分类号： G01N27/41 ,  G01N27/419

CPC分类号： G01N27/419

摘要： A detecting unit of an oxygen sensor as an A/F sensor has a solid electrolyte layer and a diffusion resistance layer and generates a current value according to the concentration of oxygen in an exhaust gas by applying a voltage across electrodes on an exhaust gas side and an atmosphere side of the solid electrolyte layer. An oxygen supply/exhaust unit has a solid electrolyte layer and a pair of electrodes formed on both faces of the solid electrolyte layer, and supplies oxygen near to the electrode on the atmosphere side of the detecting unit or exhausts oxygen near the electrode. A control unit controls, in response to a limit current value detected by a current detection unit, the amount of supply or exhaust of oxygen of the oxygen supply/exhaust unit on the basis of the detected current value. A control target value of a current flowing in the solid electrolyte layer is variably set so that amount of oxygen moving in the solid electrolyte layers are equal, thereby controlling the amount of supply or exhaust of oxygen of the oxygen supply/exhaust unit.

摘要翻译： 作为A / F传感器的氧传感器的检测单元具有固体电解质层和扩散电阻层，并且通过在排气侧侧的电极施加电压而根据排气中的氧浓度生成电流值， 固体电解质层的气氛侧。 氧气供给/排出单元具有在固体电解质层的两面形成的固体电解质层和一对电极，在检测单元的气氛侧的电极附近供给氧，或排出电极附近的氧。 控制单元根据检测到的电流值，响应于由电流检测单元检测到的极限电流值，控制氧供给/排出单元的供氧量或排气量。 在固体电解质层中流动的电流的控制目标值可变地设定为使得在固体电解质层中移动的氧的量相等，从而控制供氧排气单元的供氧量或排出量。

公开(公告)号：US5993641A

公开(公告)日：1999-11-30

申请号：US996885

申请日：1997-12-23

申请人： Kazuhiro Okazaki ,  Satoshi Haseda ,  Koji Jono ,  Masayuki Takami ,  Tomomichi Mizoguchi

发明人： Kazuhiro Okazaki ,  Satoshi Haseda ,  Koji Jono ,  Masayuki Takami ,  Tomomichi Mizoguchi

IPC分类号： G01N27/41 ,  F02D41/14 ,  G01N27/26 ,  G01N27/407 ,  G01F1/64 ,  G01N17/00

CPC分类号： G01N27/407 ,  F02D41/1456 ,  F02D41/1476

摘要： An A/F sensor outputs a linear air-fuel ratio detection signal proportional to the oxygen concentration in an exhaust gas from an engine upon application of a voltage. A computer controls the applied-voltage in a stoichiometric control region, a lean burn control region, an atmosphere detection region and a rich control region to have a fixed value such that the change rate of the applied-voltage is reduced to be less than that in other regions. In addition, when changing the voltage applied to the A/F sensor, the computer variably sets the voltage change speed sequentially. Thus, the influence of the capacitive characteristic of the A/F sensor is eliminated.

摘要翻译： A / F传感器在施加电压时输出与发动机的排气中的氧浓度成比例的线性空燃比检测信号。 计算机控制化学计量控制区域，稀燃控制区域，气氛检测区域和富控制区域中的施加电压，以具有固定值，使得施加电压的变化率减小到小于 在其他地区。 此外，当改变施加到A / F传感器的电压时，计算机可变地依次设定电压变化速度。 因此，消除了A / F传感器的电容特性的影响。